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What is the function of the three pieces of silicone on the heel of the sock element

by:Kenna     2021-04-11
What are the functions of the three silica gels on the heel of the sock element. Types and uses of door and window sealing strips Introduction: When we install doors and windows in life, there will always be certain gaps, resulting in tightly closed doors and windows. 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. 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. The expensive one is fifteen or six thousand yuan per ton, and the cheap one is only 6,000 yuan per ton. The price difference is nearly 10,000 yuan, and the quality difference is very big, which is confusing. Many sealing strip manufacturers claim that their products are in accordance with the GB12002-89 standard. , And can issue a test report qualified by an authoritative organization, the classification of sealing strips 1, 2, according to the surface treatment state, some of the sealing strip surface can be divided into flocking type sealing strip after additional treatment; surface coating sealing strip; with fabric Stickers with sealing strips. The surface of the plastic steel door and window sealing strip is smooth and clean. It not only has excellent sealing and waterproof performance, but also plays a role of beautiful decoration. In terms of material selection, manufacturers with higher requirements generally choose EPDM rubber or thermoplastic EPDM rubber, according to the location And use classification (1) window glass sealing strip; (2) door sealing strip; (3) decorative strip, molding strip; (4) other sealing strips (trunk lid sealing strip, engine hood sealing strip, water tank sealing strip, Emergency door sealing strip, etc.). 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. What is the role of the three pieces of silicone on the heel of the sock element? For car sealing strips, we must pay more attention to maintenance and master the correct maintenance method, otherwise the maintenance effect will not be achieved. Let us take a look at the maintenance of car sealing strips. It’s important. The characteristics of the product. The elasticity and pressure resistance of the automobile sealing strip are very good, and it also has good resistance to aging, ozone and chemical effects, etc., making the product very strong and strong during use. Durable and easy to install. It is made of soft and elastic, non-toxic and odorless after special processing, and can withstand 200℃ high temperature, high pressure and repeated cooking. It is used for insulation and insulation of electrical products, internal pipes of drinking water systems, industrial refrigeration equipment, and gas The internal connection of appliances, the sealing of machinery, lamps and other products, and the performance of the sealing strips greatly affect the air-tightness, water-tightness, heat loss and other important performance indicators of the doors and windows of the building, as well as the firmness of the doors and windows. Sealing strips are made of rubber, paper, metal, plastic and other materials. Low-end products use waste materials, substitute plasticizers and high filling levels, so that the strips have poor elasticity, easy to harden, and have a nasty smell. , Easy to migrate, make the frame material yellow, short service life, characteristics 1. EPDM has excellent weather resistance, weather resistance refers to long-term resistance to severe cold, heat, dryness, and humidity, and it is extremely corrosive to rain and snow. Good corrosion resistance can fully extend the service life of the rubber strip; 2. Heat aging resistance refers to strong heat-resistant air aging resistance.
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