How much is the type and purpose of the door and window sealing strip
s for trucks? Introduction: When we install doors and windows in our lives, there will always be certain gaps, which cause the doors and windows to close tightly. The door and window sealing strips are 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. In doors and windows, it is one of the inconspicuous small accessories, but it directly affects people's living environment. Based on years of professional experience in door and window sealing products and understanding of the market and customer needs, the world's advanced sealing products have been independently developed by introducing foreign advanced technology. To meet the high-end customers at home and abroad: the pursuit of sealing will never stop, and we are also maintaining the original advantages, let you 'it must be'! The mute contains special sound-absorbing cotton, which can effectively absorb the noise of the movable window leaking into the room. It has better sound insulation performance than ordinary sealing rubber strips, and can improve the sound insulation performance of doors and windows by 35%. These advantages are irreplaceable by other materials such as PVC. It can meet the needs of design and use for products with different shapes, different materials, or cold resistance, heat resistance, foaming, solid body, and special performance requirements. Automobile sealing strip production process 1. Extrusion of rubber sealing strips for automobiles is extruded by a cold feed extruder. The extrusion head has a single head, a composite (double composite and multiple composite) head and a shear head. , The screw length to diameter ratio of the microwave vulcanizing extruder is generally 16, and the screw length to diameter ratio of the shear head vulcanizing extruder is greater than 20. 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, international name: EthyienePropyeneDieneMethyiene referred to as EPDM. 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 very high requirements for materials. First, 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 top 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 largely 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 the assembly is completed, the resistance of the doors and windows will increase when they move. If the fire size is too small, or the vertical hair is too low, the door and window are prone to bracket phenomenon, which reduces the airtightness of the door and window. 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 hairs 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. According to the cross-sectional shape classification, automobile sealing strips can be divided into solid core products (round, square, flat cross-sectional shapes), hollow products and metal rubber composite products. Second, heat aging resistance is three yuan Ethylene-propylene sealing strips have been tested many times before production. From the experiments, it can be seen that the product can continue to work in a high-temperature environment without aging. Therefore, many companies use the product to improve Work efficiency, so as to get more profits. If your cracks are large or the aging degree is serious, then you don’t need to use the adhesive anymore. It is more convenient to replace with a new one. The replacement method is very simple, but in order to have a good effect, please ask a professional to update it. However, most people choose PVC material, so what should people pay attention to when buying sealing strips? First of all, put the product on your nose and smell it. If it is made of normal PVC material, it will have a little brewing smell, but the smell is very small, almost invisible. According to the material classification, the rubber materials of automobile sealing strips are compact rubber, sponge rubber and hard rubber. The hardness of hard rubber can reach Shore A95. EPDM can be combined with steel belt, steel wire braided belt, TPE, flannel, flocking, PU coating, organic silicon coating, etc., to ensure the waterproof, dustproof, sound insulation, heat insulation, vibration reduction, wear resistance and decoration effects of the car interior and the outside world and itself, and it can also choose to have good ozone resistance and good aging resistance Performance of neoprene (CR).
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