Characteristics of rubber shaped parts
Jul 07,2025
Rubber products refer to the production of various rubber products using NR and synthetic rubber as raw materials, including rubber products produced from waste rubber.
Rubber products refer to the production of various rubber products using NR and synthetic rubber as raw materials, including rubber products produced from waste rubber.
characteristic:
When rubber products are molded, they are subjected to high pressure compression, and due to the internal cohesion of the elastic body, they cannot be easily compressed. During molding and demolding, unstable shrinkage often occurs (the shrinkage rate of rubber varies depending on the type of rubber), and it takes a period of time before it can stabilize slowly. So, at the beginning of designing a rubber product, regardless of the formula or mold, careful calculation and coordination are necessary. If not done, it is easy to produce unstable product dimensions, resulting in low product quality.
2. Rubber belongs to the category of thermosetting elastomers, while plastics belong to the category of thermosetting elastomers. Due to the different types of sulfides in rubber, there is a considerable difference in the temperature range for its 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 that are mixed in an internal mixer as raw materials. During the rubber mixing process, the formula is designed according to the characteristics of the required rubber product, and the required product hardness is determined. The product is produced and molded using a rubber vulcanizing machine. After the product is formed, it undergoes trimming treatment to make the surface of the product smooth and free of burrs.
4. Rubber product aging testing belongs to the category of aging testing. Rubber aging refers to the phenomenon where the performance structure of rubber and products changes due to the combined effects of internal and external factors during processing, storage, and use, resulting in the loss of their value. Manifested as cracking, sticking, hardening, powdering, discoloration, mold growth, etc.
Key words:
NEXT:
PRODUCT SEARCH
Search And Quickly Find The Products You Need
Hebei Deyu Rubber & Plastic Technology Co., Ltd. has been focusing on the research and development and production of rubber products for 20 years. We welcome customers to visit and guide us. As long as you need us, Hebei Deyu is always there.