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Silicone mushroom strip manufacturer

by:Kenna     2021-05-04
Types and uses of door and window sealing strips of silicone mushroom strip manufacturers Introduction: When we install doors and windows in life, there will always be certain gaps, which cause the doors and windows to close tightly. The role of door and window sealing strips is used to eliminate these gaps. However, there are many types of door and window sealing strips, and their uses are also different. I have compiled some relevant information about the types of door and window sealing strips for everyone here. Door and window sealing strips can be divided into major categories in use: glass sealing strips, door leaf and door cover sealing strips and wool strips. The glass sealing strip is used to seal the gap between the glass leaf and the frame. The door leaf sealing strip is used to seal the gap between the door panel and the door frame, and the wool strip is mainly used to seal the gap between the frame and the door. It is said that in the installation process of various doors and windows, the sealing strip is indispensable. Because PVC products contain halogens and heavy metals in stabilizers, they are not conducive to environmental protection. Therefore, developed foreign countries and domestic Beijing and coastal cities have eliminated or restricted the use of PVC strips, low temperature elasticity, and the temperature when the tensile capacity reaches 100MPa is -58 , EPDM rubber is a copolymer of ethylene, propylene and a small amount of third monomer non-conjugated diene, the international name: EthyienePropyeneDieneMethyiene is referred to as EPDM. The microwave vulcanization process is used for one-time molding, with a smooth and beautiful surface, no joint marks, good elasticity and resistance to compression deformation, excellent aging resistance, excellent flame retardant performance, low smoke and low toxicity; stable product performance, high dimensional accuracy, six, Burning, PVC sealing strip will foam, shrink, give off black pungent smoke, and will not burn sufficiently, leaving hard plastic residues. Silicone rubber sealing strips will burn almost smokeless, tasteless, and fully burned. After burning, the material will be white. powder. Doors and windows bring light and vitality to the room. Doors and windows extend the limited space infinitely. Said ternary bc sealing strip (rubber EPDM)-suitable for special environments at -40°C-+160°C, and has superior ozone resistance Characteristics and anti-purple light characteristics and chemical solvent resistance characteristics, far beyond similar products, widely used in vehicle seals and building seals, in addition to various physical and chemical performance indicators in the field, our company has developed and designed hardy and heat for different fields of use. It also delivers foam and solids, with special properties that can meet the needs of the application. The sealing strip plays a role of sealing and waterproofing in plastic steel doors and windows, aluminum alloy doors and windows, and wooden doors and windows. Sealing strips have high requirements for materials. First of all, they must have strong stretchability and elasticity, as well as good temperature resistance and aging resistance. At the same time, in order to ensure the close contact between the sealing strip and the profile, the cross-sectional structure of the sealing strip must match the profile of the door and window, which is generally suitable for hanging windows and folding doors and windows. The wool strip is generally used to install on the sash of the push-type door and window to seal the gap between the frame and the sash. The specifications of the tops can greatly affect the watertight performance of doors and windows, as well as the opening and closing of doors and windows. If the size of the top is too large, or the vertical hair is too high, it will be very difficult to assemble, and after it is assembled, the resistance of doors and windows will increase when they move. If the fire size is too small, or the vertical hair is too low, brackets are prone to occur in doors and windows, which reduces the airtightness of doors and windows. There are generally two types of tops that have undergone silicification treatment and those that have not been silicified. Generally, the treatment effect will be better. Quality tops have the following characteristics: there are no obvious defects in appearance, the surface is straight, the bottom plate and vertical hair are relatively smooth, there is no bending phenomenon, and there are no pits and other problems on the bottom plate, and it meets the size requirements. The manufacturer of silicone mushroom strips is humanized. 'In the past, traditions have always paid more attention to materials and workmanship, ignoring the attention to humanization in use. What are the performance advantages of coated sealing strips? 1. Compression deformation test: 50% at 70°C The compression rate is continuous compression for 22 hours, the deformation rate is less than 10%, and the compression force is tested. Under 25% of the compression rate, a force of 15N/100mm is applied, the compression rate is less than or equal to 10N3, and the temperature range is tested: from -40°C to 90 No significant change in sealing performance at ℃ 4. Thermal conductivity K value test: K value ≤ 0 at 0 ℃. Among them, metal rubber composite sealing strip accounts for more than 60%. For rubber sealing strips, the cross-section design is very important. The first is the sealing lip. Shape and size design. The sealing lips on both sides should contact the glass from both sides of the window glass with the same and appropriate force. 3) It has an independent open-cell bubble structure, and the appearance of the special joint plate is honeycomb-shaped holes evenly distributed. It can be tightly bonded and integrated with cement/sealant without hairening, adapting to changes in natural expansion and contraction, and enhancing the effect of joint sealing, expansion and waterstop. According to the material classification, the rubber materials of automobile sealing strips include dense rubber and sponge rubber Hard rubber and hard rubber, the hardness of hard rubber can reach A95 Shore A, EPDM can be combined with steel belt, steel wire braided belt, TPE, flannel, flocking, PU coating, silicone coating, etc., to ensure that the car interior Waterproof, dustproof, sound insulation, heat insulation, vibration reduction, abrasion resistance and decoration of the outside world and itself, and neoprene rubber (CR) with good ozone resistance and good aging resistance
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