Decoration materials purchase knowledge Daquan
Classification of Plywood A type of plywood is weather-resistant, boiling water-resistant plywood, and thus has the advantages of durability, high temperature resistance, and steam treatment.
The second type plywood is a water-resistant plywood that can be impregnated in cold water and impregnated with hot water for a short time.
The three types of plywood are moisture-resistant plywood, which can be impregnated in cold water for a short time and is suitable for use at room temperature. Used for furniture and general construction purposes.
The four types of plywood are non-moisture-resistant plywood, which are used under indoor normal conditions. The general-purpose plywood materials include beech, eucalyptus, ash, birch, eucalyptus, and poplar.
Plywood purchase notes:
1. Pick wood grain. When purchasing multiple pieces of plywood, plywood with a wood grain and similar color should be selected.
2. There must be no dead festival or patches on the front;
3. The number of horny joints (live joints) is less than 5, and the area is less than 15 mm2;
4. There is no obvious discoloration and color difference; there is no dense hairline cracking phenomenon and cracks exceeding 200 mm × 0.5 mm;
5. Less than 5 holes with diameter less than 2mm;
6. Resin vesicles with a length of 15 mm and less than 4 black squashes per square metre; Resin drips with a length of l50 mm and a width of 10 mm are less than 4 per square metre;
7. No decay or deterioration.
Fiberboard fiber board is selected to use wood or vegetable fiber as the main raw material, the mechanical separation into a single fiber, adding additives made of slabs, by hot pressing or adhesive composition into wood-based panels. The thickness is mainly 3, 4 and 5 mm. Since the fiberboard has been treated with water repellent, its hygroscopicity is smaller than that of wood, and its shape stability and antibacterial property are all better.
Fiberboard classification
1. Classified by raw materials: wood fiberboard, non-wood fiberboard.
2. According to treatment methods: special hard fiberboard, ordinary hard fiberboard.
3. According to the weight density classification: hard fiberboard (also known as high-density fiberboard), semi-hard fiberboard (also known as medium-density fiberboard), soft fiberboard (also known as low-density fiberboard).
Fibreboard purchase considerations:
1. Even thickness, smooth and smooth surface, no stains, water stains, or adhesive marks. The surface of the board is fine, strong, and free from burrs.
2. Low moisture content and low moisture absorption.
3. Can strike the board surface by hand, the sound is crisp and sweet, and the quality of the even fiber board is better. If the sound is boring, you may have problems with loose glue.
Blockboard (Daixin) The optional blockboard is composed of small wooden strips of varying lengths, which are laminated on one or two layers of plywood or other veneer, and then pressed. The core board is commonly used for pine, cassia, eucalyptus, eucalyptus and other wood.
Blockboard purchase notes:
1. Blockboard is divided into one, two, three and so on. Directly decorated panels, should use a first board, only as a floor with the third-class board available.
2. Pick a board with a smooth surface, a few knots, and a few clips.
3. Check the veneer quality and density of the core board from the side or sawed section.
4. One side of the big core board must be a whole board, and only one seam is allowed on the other side. In addition, the surface of the large core board must be dry and clean.
5. When selecting the blockboard, be sure to select the machine's puzzle and do not use hand-made puzzles.
6. Observe whether there is any glue and putty phenomenon around it.
7. Sharply tap the surface of the device to hear if there is a big difference in the sound, if there is a change in the sound, there is a hollow inside.
8. When purchasing in bulk, check the quality inspection documents and quality inspection certificates.
Classification of tiles for ceramic tiles The tiles are divided into floor tiles, wall tiles and waistline tiles according to their functions.
Floor tiles: According to suits, they are divided into imitation Spanish tiles, vitrified polished tiles, glazed tiles, anti-slip tiles and osmotic polished tiles.
Wall: According to the color can be divided into vitrified wall tiles, printed wall tiles.
Waist line bricks: mostly printed tiles. In order to match the specifications of the wall tiles, the waistline bricks are generally set at 60mm x 200mm.
Divided by the process of ceramic tiles: glazed tiles, tiles, polished tiles, vitrified tiles, ceramic tiles.
Glazed tile: refers to a brick that has a glazed layer on the surface of the brick. This kind of brick is divided into two types: one is made of clay, and the other is made of porcelain clay. About 80% of home decorators currently choose this brick as the floor decoration material.
Fullbody brick: This is a non-glazed porcelain tile with good slip resistance and abrasion resistance. Generally speaking, ""non-slip tiles"" are mostly full-body bricks. Due to the moderate price of this brick, it is popular with consumers.
Polished bricks: All bricks are polished after polishing and they are very hard and wear-resistant.
Vitrified tiles: This is a high-temperature fired porcelain tile, which is the hardest of all tiles. Sometimes the tiles are still scratched when the tiles are scratched. .
Ceramic tile: also known as mosaic, specifications, thin, small, hard texture, acid, alkali, wear-resistant, watertight, resistant to pressure, not broken, colorful, widely used.
Tips for Choosing Tiles When choosing floor tiles, you can select tiles from the specifications, colors, textures, etc. according to your personal taste and the functional requirements of your home.
Good quality tiles are uniform in size, uniform in thickness, flat and smooth on the surface of tiles, no bubbles, no stains, no pockmarks, bright colors, even gloss, no corner defects, 90 degree right angles, no distortion, clear pattern design, and resistance Pressure performance is good, not easy to damage.
At the time of purchase, you should decide the type, color or pattern of the brick according to your financial situation and preferences, and determine the size according to the size of the room.
First, remove one piece from the packing box to see whether the surface is flat and in good condition. The glaze should be uniform, bright, spotless, lack of glaze, bumping, and the surrounding edges should be regular. Glazing is not bright, astringent, or air bubbles are quality problems.
Secondly, take out a piece of brick and align the two pieces. The smaller the middle gap, the better. If it is a pattern tile, four pieces must be used to piece together a complete pattern, and whether the pattern of the brick should be connected and clear should be considered. Then take out a box of bricks and place them on a large flat surface. Look at the effect from a little distance away. Whether it is white or other colors or patterns, the color should be the same. If there are individual bricks, shallow points, it will be difficult to see. , affect the entire decorative effect. .
Then put these bricks up one by one. Compare the size of the bricks. The deviation of small bricks is allowed to be plus or minus 1 mm. The large bricks are allowed to be plus or minus 2 mm.
The last step is to take a piece of brick to knock another piece, or use other hard objects to knock on the brick. If the sound of the brick is crisp and loud, it means that the quality of the brick is good and cooked; if the sound is abnormal, there is heavy skin or crack in the brick. Phenomenon: when the heavy skin is the brick, the air in the material is not discharged, resulting in poor bonding between materials and materials, internal cracks, and can not be seen from the surface, only the sound can be identified.
Hardware selection and use of hardware selection and use of hardware according to the use of functions are divided into ordinary hardware and special hardware. Ordinary hardware is divided into hinge rails, decorative handles and decorative locks according to the setting method. Special hardware categories are divided into bathroom hardware and kitchen accessories according to the setting method. Hardware purchase tips: 1. Good hinges, slides, and locks should be selected. When opening and closing, pulling a few times feel its flexibility and convenience. 2. Should choose a good performance and good locks. When the key is selected, the key can be inserted and pulled several times to see if it is smooth or not, and whether or not the switch is screwed up can be saved. 3. Choose a good type of decorative hardware with good appearance. When buying, it mainly depends on whether the appearance is flawed, how the plating gloss is, and whether the handle is smooth or not.
What are the requirements for aluminum alloy door and window accessories? (1) Doors and windows and fittings: must meet the design requirements, specifications and models should comply with national standards. (2) Floor Springs: The floor springs of the doors should be stainless steel or copper. Before they are put into use, they should be adjusted before and after the speed of opening and closing to facilitate their use. Hydraulic parts must not leak oil. Can also use the door. (3) Door lock: It should be a double-sided safety lock. (4) push hands: use stainless steel, aluminum alloy or copper. (5) Pulleys and pulley frames: Hard nylon wheels, pulley frames, and galvanized steel products are optional. (6) Sealing material: The sealing rubber strip should be used with a waterproof sealant.
How to choose curtain rails Regardless of the style of curtain rails, the key is to ensure the safety of use and the convenience of opening and closing.
How to choose the home lock lock selection should pay attention to the following three points:
(1) Comparing the weight of the lock with the handle, the heavier it shows that the material used for the lock cylinder is thicker and more wear-resistant. On the contrary, the materials are thin and easily damaged.
(2) Look at the surface finish of the lock, whether it is delicate and smooth, without spots.
(3) Open it repeatedly to see the sensitivity of the lock cylinder spring.
How to choose the handle of the furniture handle furniture has a strong aesthetic effect on the appearance of the furniture. This is because the choice of furniture handle has an important relationship with the shape, color and location of the furniture. Therefore, choosing a furniture handle is very important. So how do you choose a furniture handle?
1. When choosing, you don't have to be very clever.
2. When choosing, pay attention to contrast and set off beauty.
3. When choosing, pay attention to unification.
What kind of household electrical cord should be selected for home decoration, should use BVV2 × 2.5 and BVV2 × 1.5 models of wire. BVV is a national standard code and is a copper sheathed wire. 2x2.5 and 2x1.5 represent two cores 2.5 mm2 and two cores 1.5 mm2 respectively.
Under normal circumstances, 2 × 2.5 as the main line, trunk, 2 × 1.5 as a single electrical branch, switch line. The single-phase air-conditioning special line uses BVV2×4, and it is equipped with a special ground wire.
For the purchase of wires, first look at the volume of the wire packaging cards, whether there is the “Great Wall Mark†and the production license number of the China Electrotechnical Products Certification Committee; look at whether the outer plastic skin of the wire is bright in color and fine in texture, and should be lighted with a lighter. Open fire. Informal products use recycled plastics, which are dull in color, loose in texture, and can ignite open flames. Next, look at the length and the price. The length of BVV2×2.5 rolls is 100±5 meters, and the market price is about 280 yuan. Informal products range in length from 60 to 80 meters. Some manufacturers have made the insulation skin thick, making it difficult for the expert to see the problem. You can approximate the length by counting the number of turns of the wire and multiplying it by the radius of the entire roll. The price of such products is between 100-130 yuan. Again, you can ask the business to cut off and watch the copper core material. The 2 x 2.5 copper diameter is 1.784 mm. You can measure it with a micrometer. The regular product wires use red copper and the outer layer is bright and slightly soft. The non-regular copper products are blackish and hard, which is a kind of regenerative mixed copper. With high resistivity and poor electrical conductivity, it will heat up and be unsafe. In the end, you should go to a professional shop such as a store or a factory outlet to buy the wire.
Windows and doors to buy doors and windows structure and classification
1. Classification according to the way doors and windows are opened (1) Swing doors and windows: Doors and windows are opened inwards or outwards.
(2) Sliding doors and windows: Doors, windows, doors, and doors are horizontally moved.
(3) Folding door: The door leaf can be folded together when opened.
(4) Revolving doors and windows: The doors, windows and doors are opened and closed in rotation. The switch window includes a top hung window, a bottom hung window, a middle hung window, an upright window, and the like.
(5) Spring Doors: Doors with spring hinges that automatically close after opening.
(6) Other doors: including rolling shutters, lifting doors, upturning doors, etc.
2. According to the door and window materials can be divided into: wooden doors and windows, plastic doors and windows, aluminum doors and windows, steel doors and windows, glass doors and windows, reinforced concrete.
3. According to the function of doors and windows are divided into: Louvre doors and windows, insulation doors, fire doors and so on.
4. According to the position of doors and windows: the door is divided into outer and inner doors. The windows are divided into side windows (inside and outside walls) and skylights.
(b) Structure of the door leaf
1. Panel door: The door leaf consists of a skeleton and a door core panel. The defender's core board can be wood board, plywood, hardboard, plastic board, glass, etc. When the door panel is glass, it is a glass door. When the core is a yarn or a louver, it is a screen door or a louver door. It is also possible to partially use glass, yarn or louvers, such as upper glass, lower louver combinations, etc. as required.
2. Plywood door: The middle is a light skeleton, two sides are plywood, fiberboard and other thin plate door. It is generally an interior door.
3. Palette door: a door made of wood panels. Strong and durable, mostly for the door.
The selection of steel doors and windows for plastic steel doors and windows is a new generation of doors and windows materials, because of its high wind pressure strength, airtight watertightness, air, rain, low permeability, low heat transfer coefficient, heat preservation, energy saving, noise insulation, not easy to age, etc. The advantages are rapidly replacing steel windows and aluminum alloy windows. 1. The construction of steel doors and windows. Plastic steel doors and windows are mainly made of hard PVC (PVC) plastic profiles, plus off-duty hardware. The profile is a porous cavity, and the main cavity has inner lining steel made of cold-rolled steel plates to increase the strength of the steel doors and windows. Profile wall thickness should be 2.5 mm or more.
2. Plastic steel doors and windows manufacturing. Plastic-steel doors and windows are generally manufactured at the factory using special steel cutting and welding equipment. They are semi-automated and automated. The quality can be guaranteed.
3. Buy plastic doors and windows notice.
(1) Do not buy cheap steel doors and windows. Good plastic doors and windows have higher plastic quality, inner lining steel quality and hardware quality, and their service life can reach more than ten years. The use of low-cost steel doors and windows profiles, calcium carbonate content of more than 50%, additives containing lead salts, poor stability, and affect human health. The inner lining steel is a hot bar plate, the thickness is not enough, some even do not have inner lining steel, glass, hardware also have bad products. The service life is only two or three years.
(2) Pay attention to surface quality. The color of plastic profiles on the surface of doors and windows is blue-white or ivory white, clean, smooth and smooth. There are no scratches or bumps on the large surface, and there is no welding or fracture at the welding joint. The surface of the good quality steel doors and windows should have a protective film, and the user should tear off the protective film before use.
(3) Pay attention to glass and hardware. The glass should be smooth and dry. The glass and plastic profiles are not in direct contact and there is a sealing bead that closes the gap. The hardware is complete, the position is correct, the installation is firm, and the use is flexible.
What are the characteristics of aluminum alloy doors and windows (1) light weight, high strength: aluminum alloy material is mostly hollow thin wall composite section, easy to use, reduce weight, and the section has a high bending strength, made of doors and windows durable, small deformation .
(2) Good sealing performance: The aluminum alloy itself is easy to be extruded, and the cross-sectional profile of the profile is precise and the processing accuracy is high. Optional waterproof material, elasticity, and durability are all better sealing materials, such as rubber beads and silicone sealants. In terms of profiles, all kinds of sealing strip fixing grooves have been completed together with the same section in the extrusion molding process, which has created favorable conditions for installing sealing materials.
(3) Beautiful appearance: After the surface of the aluminum alloy is anodized, it can show the color of the ancient lead liver, copper, golden, silver and other colors. The sash has a large frame and can be fitted with a large area of ​​glass so that the interior is bright and bright, which enhances the contrast between the interior and exterior facades and makes the room more rich.
(4) Strong corrosion resistance: The aluminum alloy oxide layer does not fade or fall off, and does not require painting. It is easy to maintain without maintenance.
How to modify, choose solid wood doors Solid wood doors are part of the high-end luxury doors and windows decoration, you can use red spring wood, Thai teak or rosewood to do. Commodity solid wood door specifications are 80 cm × 190 cm, 80 cm × 200 cm, 90 cm × 200 cm several. The price of each door ranges from 1,500 to 3,000 yuan, and high-quality teak doors are as high as 3,000 to 4,000 yuan. Innovative products, as well as steel doors. Framed with steel, the skin is inlaid with plastic and the appearance is rather hardwood varnish. Can be made into double doors, and attached to the door frame, each about 500 to 800 yuan, can also be customized according to the actual measurement of the door size specifications. Plastic steel door has the characteristics of heat preservation, heat insulation, noise elimination, sound absorption, flame retardant, economical and practical, and the appearance is gorgeous.
How to choose the most popular wood door Glulam craft wooden door. It is an international advanced wood processing technology that uses high-quality wood after being divided and recombined. It destroys the original cell structure of wood and forms a new structure, making it a new type of wood that is not easy to warp, deform, and crack to adapt to temperature difference. Change with humidity. Such wood is particularly popular in some developed countries such as the United States and Japan.
If the spliced ​​veneer of a rare species of tree is affixed to the surface of glulam, such as European beech, American red oak, etc., the ordinary ordinary wooden door is transformed into a noble, elegant, luxurious and advanced craft wood door, making your living room Brilliant.
Correct selection of security doors The key to purchase security doors is strong, with three points for reference:
1, the material should be thick. The thickness of the pipe is generally not less than 1.2 mm, the surface finish of the steel management body is high, there is no rough blistering, and the thick steel pipes are sounded with good sound quality and feel steady.
2, the structure should be reasonable. The anti-theft door with the door frame is more secure and easy to install in the summer. The distance between the gate fence steel pipe is not more than 6 cm (the best hand does not come in).
3, the lock should be selected to lock the third tongue lock multi-security anti-theft lock, indoor and outdoor can be open or locked, and install the door on the door to protect the iron plate, so that the keyless person is difficult to shake.
Timber purchase wood material classification: 1. According to tree species: divided into coniferous wood (such as pine, cypress, etc.) and broad-leaved tree (such as beech, birch, poplar, etc.). 2. According to the use of points, divided into the original article, logs, sawn timber three categories. 3. According to the material, logs are divided into one, two, three, etc.; sawn timber is divided into special grade, first grade, second grade and third grade. 4. According to the weight, it can be divided into light materials - the bulk density is less than 400 kg/m3. Medium wood - The bulk density is 500 to 800 kg/m3. Heavy material - Capacity is greater than 800 kg/m3.
Commonly used wood: 1. Red pine: light and soft material, moderate strength, good drying, water resistance, corrosion resistance, processing, finishing, coloring, good cementability. 2. Baisong: The material is light and soft, elastic, fine and uniform structure, good drying, water resistance, corrosion resistance, good processing, finishing and coloring. White pine is stronger than red pine. 3. Birch: The material is slightly hard, with fine structure, high strength, good workability, finish, and gluing. 4. Paulownia: The material is very light and soft, and its structure is rough. The cut surface is not smooth, and it is dry and not cracked. .5. Beech wood: The material is slightly lighter and softer, and the structure is slightly finer, with silky luster, and it is not easy to crack. The processing, painting, coloring, and cementation are good. Not resistant to corrosion, slightly warped when dry. 6. Ash: material is slightly hard, beautiful patterns, rough structure, easy processing, toughness, finishing, good adhesion, dryness in general. 7. Beech: beautiful patterns, rough structure, processing, finishing, good adhesion, poor drying, easy to crack warping. 8. Beech wood: hard material, rough structure, high strength, difficult processing, coloring, good finish, poor glueability, easy to dry, easy to crack. 9. Beech: hard material, straight texture, fine structure, wear-resistant and shiny, not easy to deformation when drying, processing, finishing, good gluing. 10. Maple wood: moderate weight, fine structure, easy processing, smooth cutting surface, good finishing and gluing, warping when dry. 11. Basswood: moderate weight, fine structure, aroma, not easy to be deformed when drying, better processing, painting, and gluing. 12. Willow: moderate material, slightly thick structure, easy processing, good bonding and finishing. Slight cracking and warping when dry. Plywood made from Willow is called a Philippine board. 13. Rosewood: hard material, texture, medium structure, corrosion resistance, not easy to dry, smooth cutting surface, coating, good adhesion. 14. Red sandalwood (redwood): Hard material, more texture, coarse structure, strong durability, shiny, smooth cutting surface. 15. Artificial boards, commonly used are plywood, plywood, fiberboard, particleboard, hollow board and so on. Due to the different composite structure of various wood-based panels, it can overcome the shortcomings of wood expansion, warping, cracking, etc., so it has many advantages in the use of furniture.
Picking wood notes: 1. Wood should not crack, warping, color, texture smooth. 2. Wood cannot be rotted, discolored, or pest-infested. 3. Must be dried and the moisture content must not exceed 15%. Beijing should be within 12%.
How to use gypsum decorative materials The art of gypsum decoration gives people a visually elegant and unadorned feeling, but also has the characteristics of low price, so it is more and more known and accepted by people. This is also the main reason why gypsum decorative materials are becoming more and more popular today.
However, as with all products, the quality of gypsum decorative materials is also uneven. How to choose? Here's a brief introduction for readers' reference.
First, pay attention to distinguish the depth of relief.
The embossed thickness of the deep embossed product pattern should be more than one centimeter. The pattern is fine, clear and bright. In this way, after the installation is completed, it is painted on the surface to maintain the three-dimensional feeling, thus ensuring the artistic and aesthetic appearance of the relief.
The second is to pay attention to the surface finish.
The surface of the relief product is not damaged, neat and tidy, and the texture is smooth, the smoother the hand feel, the better the effect after painting.
The third is to pay attention to the thickness of the product.
Gypsum air-tight cementitious materials must be of appropriate thickness to ensure the completeness and perfection of the service life and use period.
Fourth, pay attention to identify manufacturers and trademarks.
Nowadays, many small manufacturers in the market use inferior gypsum powder for production, and use counterfeit brand names, hit the market at low prices, and some prices are 1/3 to 1/2 cheaper than regular products, which is attractive to many consumers. Force, and shouted after use.
The characteristics and application of decorative glass for glass selection
1. Advanced silver mirror glass. The advanced silver mirror glass is made of modern advanced mirror making technology, and the special float glass is selected as the original film, which is manufactured through a series of processes such as sensitization, silver plating, copper plating, and protective lacquer. Its characteristics are pure image, high reflectivity, good color reproduction, and bright and natural images. Even durable in the wet environment, it is a new generation of aluminum mirrors, and its use is also beyond the aluminum mirror products.
2. Color printing glass. It is a product of photography, printing, and replication technology applied to glass.
3. The colored glazed tempered glass is printed on the glass surface through a special process, and then dried and tempered. The colored glaze is permanently sintered on the glass surface and has the advantages of resistance to acid and alkali, corrosion resistance, never fade, high safety, etc., and has the characteristics of reflection and non-perspective.
4. Stained glass. Stained glass is a widely used high-grade glass variety. It is made of special pigments directly on the glass, or spray-carved into various patterns on the glass and made of colors. It can realistically reproduce the original painting, and the film has strong adhesion, good weather resistance, and can be scrubbed. . According to the needs of interior color, the use of stained glass can blend painting, color, and lighting. Such as copying landscapes, landscapes, coastal jungle paintings, etc., are used in gate courts and middle halls to cut the vitality and vitality of nature into rooms.
6. Sandblasted glass. Sandblasted glass includes spray glass and sand-engraving glass, which is a glass product processed into horizontal or intaglio patterns on glass by an automatic horizontal sand blaster or vertical sand blaster.
Flat Glass Characteristics and Uses Flat glass is a traditional glass product, mainly used for doors and windows, plays a role in light transmission, wind blocking and heat preservation. Requires colorless, with good transparency and smooth surface, no defects.
The thickness of the plate glass is divided into two millimeters, three millimeters, four millimeters, five millimeters, six millimeters, and the single-sheet size is 300 millimeters by 900 millimeters, 400 millimeters by 1600 millimeters, and 600 millimeters by 2,200 millimeters. The visible light reflectance is about 7%, and the light transmittance is between 82% and 90%.
Characteristics and Uses of Embossed Glass Embossed glass, also known as patterned glass and knurled glass, is mainly used for doors, windows, interior partitions, toilets, etc.
The embossed glass has a pattern on the surface, which can transmit light, but it can block the line of sight, that is, has the characteristics of opaque light transmission, and has an excellent decorative effect.
The perspective of the embossed glass varies depending on the distance and pattern. Its perspective can be divided into: almost transparent and visible, slightly transparent and visible, almost obscuring the invisible and completely invisible. Its type is divided into: embossed glass, embossed vacuum aluminized glass, three-dimensional embossed glass, color film embossed glass. The thickness is 3 to 5 mm. Its specifications are more, divided into diamond embossing, square embossing. The pattern faces the inside when installed, preventing dirt.
Insulating Glass Characteristics and Applications Insulating glass is composed of two or more layers of ordinary flat glass. Adhere to the high-strength, high-air-tight, adhesive composite adhesive, seal two or more pieces of glass with seals and glass strips, fill the middle with dry gas, and fill the frame with desiccant to ensure the glass The dryness of the air. Its characteristics, due to leaving a certain cavity, and has a good insulation, heat insulation, sound insulation and other properties. It is mainly used for outer glass decoration of heating, air conditioning and noise elimination facilities. Its optical properties, thermal conductivity, and sound insulation coefficient should all meet national standards.
Tempered glass characteristics and use Tempered glass, also known as tempered glass. It is a method of rapidly cooling after heating to a certain temperature, or a glass that is specially treated by a chemical method. Its characteristics are high strength, its bending strength, impact strength is 3 to 5 times higher than ordinary flat glass. The safety performance is good, there is a uniform internal stress, and it is a net-like crack after crushing. Mainly used for doors and windows, partition walls and cabinet doors. Tempered glass is also resistant to acid and alkali. The general thickness is 2-5 mm. Its size is 400 mm X 900 mm and 500 mm X 1200 mm.
Wired Glass Characteristics and Uses Wired glass is otherwise known as shatterproof glass. It is made by heating the ordinary plate glass to the red heat softening state, and pressing the preheated wire or wire mesh into the middle of the glass. Its characteristics are excellent fire resistance, can block the flame, high temperature combustion does not burst, will not cause fragmentation when broken. There is also anti-theft performance, glass cut and barbed wire blocking. Mainly used for roof skylights, balcony windows.
High-performance hollow glass characteristics and applications High-performance hollow glass In addition to the dry air sealed between the two layers of glass, but also in the outer layer of glass on the air side, coated with a layer of good thermal properties of special metal film, which can block the sun Ultraviolet rays are emitted into the interior of the room. Its characteristics are better energy-saving effect, heat insulation, heat preservation, and improvement of indoor environment. The appearance of eight colors, rich in art deco value.
Glass Mosaic Features and Applications Glass mosaics are also known as glass mosaic tiles or cellophane tiles. It is a small size of colored finish glass. The general specifications are 20mm x 20mm, 30mm x 30mm, and 40mm x 40mm. The thickness is 4-6 mm. Small pieces of glass inlays of various colors. Appearance is colorless and transparent, colored transparent, translucent, with gold, silver spots, patterns or stripes. The front surface is glossy and smooth; the back surface is provided with a rough flutes for easy application with mortar. Features are: with soft colors, simple, elegant, beautiful, chemical stability, good cold and heat stability. And there are no color change, no dust, light weight, bonding and other characteristics, and more for indoor parts, balcony outside decoration. The compressive strength, tensile strength, blooming temperature, water resistance, and acid resistance should all meet the national standards.
Laminated Glass Features and Uses Laminated glass is a type of safety glass. It is a flat or curved composite glass product formed by sandwiching transparent plastic sheets between two or more sheets of flat glass and bonding them by heat and pressure. Its main feature is its good safety. When it is broken, the glass fragments do not flutter and scatter, and only radial cracks are generated, which will not hurt people. The impact strength is better than ordinary flat glass, and it is good for crime prevention. And light, heat, humidity, cold, sound and other special features. Mostly used for doors and windows that border the outdoors. The thickness of the laminated glass is generally 6-10 mm, and the specifications are 800 mm X 1000 mm and 850 mm X 1800 mm.
The carpet of the carpet has the characteristics of heat preservation, heat insulation, sound absorption, softness, comfort and nobleness and is one of the main materials in the floor decoration.
First, the classification of carpet (a) classified by material
1, pure wool carpet. The main raw material is coarse sheep wool.
2, blended carpets. Wool and synthetic fibers, such as nylon, nylon and other mixed woven.
3, chemical fiber carpets. There are many types of nylon, nylon, acrylic, polypropylene, polyester carpets and so on.
4, plastic carpets. The main raw material is polyvinyl chloride resin, additive agent and other additives.
(B) Classification by knitting process
1. Hand-knitted carpet: It is made by manual weaving, with fine workmanship and colorful patterns. Used for pure wool carpets.
2. Non-woven carpets: The non-woven fabric manufacturing technology is adopted, ie the raw materials are directly made into fabrics by the weaving method without the traditional spinning process. Therefore, non-woven carpets are short-haired carpets that are not warp and weft, such as needle-punched carpets, bonded carpets, and the like. This carpet adheres fluff to rubber or linen substrates. The process is simple and the construction cost is low, but the carpet is thin and the foot feel is poor, and the durability and elasticity are also poorly rented.
3, tufted carpet: woven with tufting weaving method, divided into velveteen carpet and loop pile carpet. The loop pile carpet does not cut the pile loops in the weave. The surface is lapped and the velvet height is 5 to 10 mm. The cut velvet handles the velveteen carpet, and the nap height is usually 7-10mm.
(c) Classification of carpet carpets, he-shaped carpets, oval carpets, etc. according to carpet patterns.
(d) Classification by carpet grade
1, mild household level. Used for infrequently used rooms.
2, moderate home or mild professional use level. It is commonly used in bedrooms and restaurants.
3, general home or moderate professional use level. Used in the living room, living room, etc.
4, heavy home or general professional use level. For places where the family wears heavily.
5, heavy professional use level. Used in public places.
Second, the raw material characteristics of the carpet
1. Wool: Good elasticity, not easy to pollute, deform, wear, good heat insulation, corrosion, insects, and high price.
2. Nylon: good abrasion resistance, easy to clean, no corrosion, no insects, no mildew, but easy to deform, easy to generate static electricity, and will be partially dissolved in case of fire.
3, polyester: wear resistance is second only to nylon, heat, light, no mildew, no insects. Difficult to dye.
4. Polypropylene: light weight, good elasticity, high strength, rich raw materials, and low production costs.
5, acrylic: soft, warm, good elasticity, in the low elongation range of the elastic recovery force close to the wool, lighter than the wool, no mildew, no corrosion is not insects, the disadvantage is poor wear resistance.
Third, the quality of carpet identification
1. Braid density: The quality of the carpet is differentiated from the density of the carpet surface fiber. The standard is the number of warp threads per 0.3048 square meters of carpet (commonly known as the number of tracks). The higher the number of tracks, the better the quality. The average household carpet is 90~150, and the carpet used in high-grade decoration should be 200 or even 400.
2. Abrasion Resistance: The number of times the carpet needs to be exposed to the backing under constant pressure. The abrasion resistance of carpets is related to the variety of raw materials, and it is also related to the thickness of carpet weaving. The thicker it is, the more wearable it is.
3. Resilience: The thickness loss rate of the carpet under dynamic load is expressed as the pressure after the floor carpet is pressurized for a certain period of time. The thickness difference between the carpet and the unpressurized floor is measured. The better the ability, the smaller the difference in thickness and the better the resilience. After testing, resilience is this: Bucket, eye-lun, nylon, polypropylene. Of course, due to the different origins and different levels of technology, especially the many reformed products that appear, this ranking will also change.
4. Electrostaticity: The charging and discharging conditions of carpets measured with carpet surface resistance and static voltage are generally related to the conductivity of the fibers themselves. The chemical fiber carpets currently produced have been treated and will not affect their use.
5. Flammability: Flame resistance is an important indicator of decorative materials. For chemical fiber carpets, where the burning time is within 12 minutes and the burning area diameter is within 17.96 cm, the flame resistance is acceptable. In comparison, polypropylene carpets have poor resistance to burning, and the other carpets have little correlation with the flame resistance index. Of course, in addition to its resistance to burning, we must also pay attention to the problems caused by the burning of chemical fiber carpets and the burning of dragons and tigers.
Fourth, the choice of carpet
1, pure wool carpet: According to the different ways of weaving, wool carpet is divided into hand-woven, woven, non-woven and other varieties. Wool carpets are loved by people for their warmth, sound absorption, softness, comfort, flexibility, and grandeur. However, due to the high price, easy to infest, easy to mold and affect the use of the surface, the family generally use a small piece of wool carpet laying.
2, chemical fiber carpet: a sound-absorbing, thermal insulation, wear resistance, resistance to insects and other advantages but poor flexibility, the feet are hard, easy to vacuum, dust. The price is low and easy to accept. Due to obvious weaknesses. It is gradually replacing other ground materials.
3, blended carpets: willing to have sound absorption, insulation, wear resistant insects and other advantages, flexibility, foot feel better than synthetic fiber carpets, affordable, for some families choose to use.
4. When purchasing carpets, you should ask the dealer for a product quality inspection report, and compare the performance indexes of different materials and carpets with different prices.
How to choose a latex paint There are several criteria for choosing a latex paint: First, it is washable. Because the wall is easily soiled, families with children will be more troubled by graffiti. After the latex paint containing the waterproof formula dries out, it will naturally form a dense waterproof paint surface. With clean water or mild detergents, you can easily wipe off stains without removing the paint itself. The latex paint sold on the market has such a function as long as it is manufactured by a regular manufacturer and meets the requirements of the national standard. Some manufacturers have proposed that the number of washing times exceeds the national standard several times. In fact, this does not make much sense for the average family. The provisions of the national standards have fully satisfied the requirements of home decoration. Second, it is the moisture-proof and mildew-proof function of latex paint. Whether or not the wall in your home has been caused by mildew caused by excessive moisture. This is especially prominent in basements, bathrooms, or in wet weather. Anti-mold and moisture-proof latex paint can effectively block the invasion of water on walls and walls, prevent moisture penetration, and prevent mold growth. Long-lasting paint is not easy to fade or fall off. It is another important point that consumers should pay attention to when selecting latex paint. In general, latex paint can keep 3-5 years bright and new, it is more in line with family requirements. In addition, everyone is most concerned about whether latex paint is truly non-toxic, safe and environmentally friendly. Here you can tell that the main components of latex paint are non-toxic resin and water, and lead and mercury are not included. No irritating odor will be produced during the brushing process and will not cause harm to the human body, living organisms and the surrounding environment. However, you must purchase latex paint products marked with the manufacturer, production date, and shelf life, as well as the lead-free and mercury-free labels. Finally, to remind everyone to choose to buy latex paint, do not be too superstitious with some manufacturers of technical indicators, as long as it is in line with national standards of products that can meet your needs in the construction, color, you can start on your home wall Decorative landscaping effect.
Selecting the four elements of the sofa There are a wide variety of sofas that are popular on the current market. There are three main types of sofas, which are leather sofas, fabric sofas, and curved wood sofas. When consumers purchase sofas, they must decide according to the size of the room, the overall layout of the environment and their own economic conditions. In order to ensure the quality of the sofa, attention can be paid to the following aspects: the sofa should be beautiful in appearance, the leather should be soft, and the paint color of the fabric color and the wooden armrest should be coordinated with the indoor environment. The functional dimensions of the sofa should be reasonable. The width in front of the seat should be greater than or equal to 480 mm, the height of the seat 360 mm to 420 mm, and the height of the armrest 250 mm. The frame of the sofa should be a blinking structure and cannot be connected with nails; the structure should be firm and can not be loosened or it will seriously affect the service life of the sofa.
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Test tubes, Pipette guns, Centrifuge Tubes, etc. in the laboratory need to be organized. Therefore, there is a need for laboratory table top racks that are easy to clean, store, and transport.
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