1. When rubber products are formed, they cannot be XC due to the cohesion of elastomer after being pressed under high pressure. When they are formed and removed from the mold, they often produce unstable shrinkage (the shrinkage rate of rubber varies with the type of rubber), which can be gentle and stable after a period of time. Therefore, at the beginning of the design of a rubber product, regardless of the formula or mold, it is necessary to carefully calculate the coordination. If not, it is easy to produce unstable product size and low product quality.
2. Rubber is a thermosetting elastomer, while plastic is a thermosetting elastomer. Due to different types and main bodies of sulfides, there is a considerable gap in the temperature range of rubber molding and curing, and it can even be affected by climate change and indoor temperature and humidity. Therefore, the production conditions of rubber products need to be adjusted appropriately at any time. If not, there may be differences in product quality.
3. Rubber products are made from rubber raw materials after internal mixer mixing. When mixing, the formula is designed according to the characteristics of the required rubber products, and the required product hardness is set. The production and molding of the product is molded by the rubber flat vulcanizing machine. After the product is formed, the flash treatment is carried out, and the surface of the product is treated smooth without burrs.
4. The aging test of rubber products belongs to the aging test category. Rubber aging refers to the phenomenon that the performance and structure of rubber and products are changed due to the comprehensive effect of internal and external factors in the process of processing, storage and use, and then lose the use value. It shows cracking, tackiness, hardening, chalking, discoloration, mildew, etc.