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Silicone strip and silicone pad

by:Kenna     2021-06-20
Types and uses of silicone strips and silicone gaskets for door and window sealing strips Introduction: When we install doors and windows in life, there will always be a fixed gap, which causes 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. Four composite sealing strips-Shanghai Shenya Sealing Parts Co., Ltd. has taken the lead in the domestic development and production of composite sealing strips composed of 4 kinds of rubber materials, and a thin layer of protection is coated on the surface of the foam rubber (bubble tube) Layer glue to further increase the service life of the seals. Car sealing strips are classified according to the surface treatment state. After additional treatment, the surface of some sealing strips can be divided into flocking sealing strips; surface coating sealing strips; automotive sealing strips with fabric stickers Special function classification of sealing strips Some sealing strips have electronic intelligence functions, such as anti-pinch sealing strips. A small number of door and window companies in low-level price competition are still in use. Medium and high-end PVC strips can meet the standard indicators and have a relatively long service life. 5. Because of their excellent physical and mechanical properties, they are often used in the manufacture of airplanes and cars. , Trains, passenger cars, ships, high and low voltage switch cabinets, glass curtain walls, aluminum alloy heat-breaking window sealing parts and diving products, high-pressure steam hoses, tunnels, viaduct joints and other waterproof parts and other industrial and agricultural sealing parts, 8℃, EPDM rubber has excellent UV resistance, weather resistance, heat aging resistance, low temperature resistance, ozone resistance, chemical resistance, water resistance, good electrical insulation and elasticity, and other physical and mechanical properties. 2. The semi-finished rubber sealing strip extruded by the vulcanization cold feed extruder is vulcanized by continuous vulcanization process. The vulcanization methods include microwave vulcanization, shear head vulcanization, salt bath vulcanization and fluidized bed vulcanization (also called vulcanization bed vulcanization, heating medium It is medium 0. And does not react with any paint or detergent, customers do not need to worry about the integrity and aesthetics of doors and windows being damaged. According to the compound structure of the rubber compound, it can be divided into pure rubber sealing strips-composed of a single rubber type; Two composite sealing strips-composed of dense rubber and foam sponge rubber, often containing a metal skeleton material in the axial direction inside the dense rubber; three composite sealing strips-composed of two dense rubbers (one of which is light-colored) and sponge It is composed of glue, usually containing a metal skeleton and reinforcing fibers inside the compact glue. 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. The sealing strip has high requirements on the material, and it must first have a lot of Strong stretching ability and elasticity, as well as better 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 On doors and windows. Tops are usually installed on the sashes of push-type doors and windows 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, and also affect the performance of doors and windows. Switch. 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 If the vertical hair is too low, the door and window are prone to bracket phenomenon, which reduces the sealing of doors and windows. Generally, there are two types of tops that have been siliconized and those that have not been siliconized. Generally, the use effect after treatment will be better. The quality is qualified. The 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, which meet the size requirements. The silicone strip and the silicone pad are separated It is self-adhesive type and card slot type, used in different doors and windows, and is more convenient and feasible in operation and installation. What is the performance advantage of coated sealing strip? 1. Compression deformation test: compression rate of 50% at 70℃ and continuous compression for 22 hours , Deformation rate ≤10%2, compression force test, under 25% compression rate, apply a force of 15N/100mm, compression rate ≤10N3, temperature range test: from -40℃ to 90℃, no sealing performance Obvious change 4. Heat conduction K value test: K value ≤ 0 at 0°C. Among them, the classification according to the title of the device (component) is a common way, which includes the engine room sealing strip, the front and rear wind window sealing strips, the door frame sealing strip, the door sealing strip, the door glass guide groove sealing strip, the lower door dust strip, Internal and external sealing strips for door and window sills, side window sealing strips, sunroof sealing strips, roof cover sealing strips, trunk (luggage box) sealing strips, etc. Installation method: self-contained double-sided tape, just stick it directly (the sticking surface must be smooth, Clean, smooth and dry). Nowadays, cars are also very common and have become our main transportation tool. The basic function can fill some gaps in the body, so that good shock absorption and waterproof effects can be achieved. Features: 1, three yuan Ethylene-propylene has excellent weather resistance, weather resistance refers to long-term resistance to severe cold, heat, dryness, and humidity, excellent corrosion resistance to rain and snow, and can completely extend the service life of the rubber strip
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