Silicone foam strip
Shanghai Shengkun door and window sealing strip types and uses Introduction: When we install doors and windows in our lives, there will always be a fixed gap, which causes the door and window departments 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. 6) Classification and function, high-quality sealing strips will improve the overall style and performance of the door in terms of appearance, internal quality, or later use, and covered sealing strips are the modern development trend, and the humanized 'past' Traditional sealing strips have always paid more attention to materials and workmanship, ignoring the attention to humanization in use. With the improvement of people’s living standards, the improvement of housing conditions and people’s high attention to home decoration, the privacy of indoor rooms, More and more people pay attention to the sound insulation and sealing effect. These advantages are irreplaceable by other materials such as PVC, and require different shapes, different materials, or cold resistance, heat resistance, foaming, solid body, and special properties. All of the products can meet the needs of design and use. Automobile sealing strip production process 1. Extrusion of rubber sealing strips for automobiles is extruded by a cold feed extruder. The extruder head has a single head, composite (double composite and Multi-composite) head and shearing head. Among them, the screw length-to-diameter ratio of the microwave vulcanization extruder is generally 16, and the screw length-to-diameter ratio of the shearing head vulcanization extruder is greater than 20. The expensive one is fifteen or six One thousand yuan a ton, the cheap one is only six thousand yuan a ton, the price difference is nearly 10,000 yuan, the quality difference is very big, it is confusing, many sealing strip manufacturers claim that their products are in accordance with the GB12002-89 standard, and can issue authoritative inspections Qualified test report, classification 1, 2 of the sealing strip, classified 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; sealing strip with fabric decoration. Sealing strip It 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, they must have strong stretchability and elasticity, as well as good temperature resistance and resistance. Aging. 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 strips are generally used for installation on the sashes of push-type doors and windows. Used to seal the gap between the frame and the fan. The specifications of the top can greatly affect the watertight performance of doors and windows, and also affect the opening and closing of doors and windows. If the specifications of the top are too large, or the vertical hair is too high, the It will be very difficult to assemble, and after assembly, 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 doors and windows are prone to bracketing, which reduces the doors and windows. Sealing performance. There are generally two types of tops that have been silicified and those that have not been silicified. Generally, the use effect will be better after treatment. The qualified tops have the following characteristics: no obvious defects in appearance, straight surface, and bottom plate The vertical hairs are relatively smooth, without bending, and there are no pits and other problems on the bottom plate, which meet the size requirements. Silicone foam strip Shanghai Shengkun This technology is recognized by the world as a good process for producing extruded products. Microwave heating The characteristic is that the heat is directly generated in the object to be heated, instead of being input from the outside as usual. This not only generates heat quickly, but also distributes it evenly, which is beneficial to improve product quality and greatly shorten the heating time. Hot air vulcanization sealing strip : Hot air sulfur has now developed to strong wind type vulcanization, that is, high temperature, high speed hot air vulcanization (Tmax: 450°C and Vmax: 60m/s) can also achieve flame pretreatment, and the safety is greatly improved. Car sealing strips are also something that can often be used in cars. Use better quality products, so that they can be used for a longer time. Although there are many brands on the market to choose from, it still depends on your actual situation. Choose according to the situation, because different cars are suitable for different sealing strips, so you can choose more to compare above. How to use the sealing strip is worth our attention and needs to be remembered, especially in the hot season. , Try to use it in a cool place to avoid exposure to the sun. It is divided into self-adhesive type and card slot type. It is used in different doors and windows. It is more convenient and feasible in operation and installation. What is the performance advantage of the coated sealing strip? 1. Compression deformation test: 50% compression rate at 70℃ continuous compression 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℃, the sealing performance is not obvious Change 4. Thermal conductivity K value test: K value ≤ 0 at 0°C. The main function of doors and windows is to seal, how to strengthen the seal, then the sealing strip plays a very critical role.
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