After the film is cut horizontally, it is attached to the front roller by hand and turned into a fan shape with the roller, moved from left to right or from right to left, and then vertically put into......
2019-12-17Cut the film on the roll horizontally, then fold the left and right sides of the film alternately to the middle, and make a triangular plastic bag on the front roller. After the rubber material has co......
2019-12-17Roll the rubber on the roller to the left and right to make it uniform. During operation, hold the knife at a 75 ° oblique angle to the horizontal line of the roller to cut the glue, and hold the film......
2019-12-171) Roller pitch: Under a certain glue capacity, the roller pitch is generally 4 ~ 8mm, and the small roller pitch enters the powder. 2) Roller temperature: The roller temperature of natural rubber mi......
2019-12-17a) Feeding: When plasticizing and mixing the opener, all raw rubber, masterbatch and combined rubber must be added by the large gear of the rubber mixer. b) According to different properties of raw r......
2019-12-17The calender generally adopts a vertical three-roll calender. When used for the production of film, the middle roller is fixed. The speed of the middle roller is faster than that of the upper roller. ......
2019-12-16Silicone rubber is generally soft, has good extrusion effect, and is easy to handle. It can extrude products of various shapes and sizes. Its processing equipment and tools are basically similar to or......
2019-12-16After the mixing of the silicone rubber compound, the parking time should not be less than 24h, so that various compounding agents (especially structure control agents) can fully function with the raw......
2019-12-16Too much plasticizer or structure control agent is added to the rubber compound, resulting in poor rubber resilience and slow vulcanization speed; too much plasticizer or structure control agent is ad......
2019-12-16It is also an important factor that leads to poor rubber resilience and slow vulcanization speed. As the white carbon black itself is acidic, and the added structure control agents are mostly acidic, ......
2019-12-16The rubber does not reach the normal sulfur point during vulcanization, the vulcanization speed is too long, and the vulcanization is insufficient, resulting in poor rubber elasticity. You can solve t......
2019-12-16The sealant is formed into a strip from a plastic bottle, and the following properties can be tested or simply judged during the process of applying the glue and observing the strip. (1) Squeezabil......
2019-12-13(7) Squeezability: This is an item of sealant construction performance. It is used to indicate the ease of use of the sealant. Too thick glue is poor in extrusion properties, and it is very laborious ......
2019-12-13(4) Elongation: Elongation is the elastic performance of the sealant after it is completely cured. It also belongs to one of the mechanical properties. It refers to the percentage of the total elongat......
2019-12-13(1) Appearance: The appearance of the sealant mainly depends on the dispersion of the filler in the base rubber. The filler is a solid powder. After being dispersed by the kneader, mill, and planetary......
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