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Why Silicone Gasket Dark Marks Silicone Gasket Quality
Release time:
2021-01-25 14:46
Source:
Dongguan Mingzhen
Silicone products why there will be dark marks.
1, silica gel raw materials.
The raw material properties and product ratios of silica gel products are different from those of silica gel key manufacturers. Therefore, for the understanding of external adverse phenomena, the surface factors are still different according to the distribution ratio of silica and silicone resin in the products. Because the raw materials belong to semi-permeable solid white glue, the mixing uniformity of the mixed rubber and vulcanizing agent depends on the quality of the rubber compound during the mixing process, while the positive rubber products are the above-mentioned reasons.
2, silicone mold.
The mold is the core of the silicone product. The material selection on the mold steel occupies the main factor. Secondly, the surface defect in the processing process is probably due to the deformation of the mold caused by the excessive number of rubber keys pressing, which leads to the poor appearance of the silicone product. Secondly, in the finishing process of the mold, the precision of the mold determines the closing line of the product, the self-disassembling edge and the edge wheel angle, etc.
How to correctly identify the quality of silicone gaskets.
1. Wear resistance. O-ring silica gel is becoming more and more popular because of its environmental protection performance. To understand the knowledge of silica gel products, one must start with the original silica gel product material. Wear resistance is the ability of the production and molding of silica gel products. The surface of silica gel gasket can suffer from loss. Generally, the surface of silica gel gasket seldom rubs off the silica gel keys on the surface of the product due to external factors, which does not affect the appearance, text and color, and inferior quality silicone products surface characters easy to fall off.
2, elasticity, silicone gasket has good elasticity, sealing ring because of high elasticity is mainly from the movement of silicone molecular chain segments, so in the purchase of silicone products to look at the elasticity of silicone products to judge the quality.
3. Fatigue resistance and heat resistance of O-ring: Silicone rubber has much better heat resistance than ordinary liquid silicone rubber. It can be used almost forever at 150 without performance change. It can be used continuously for 10000 hours at 200. It can also be used in silicone product factories for a period of time at 350. It is widely used in occasions requiring heat resistance, hot water bottle sealing ring and pressure pot ring heat-resistant handle.
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