High Pressure Molding products


The reasons are as follows:
1. The problem with the raw materials themselves may be caused by poor quality, formula matching, or excessive moisture in the materials (which can be solved by adding some calcium oxide during mixing). It is recommended that the manufacturer eliminate each issue one by one,
2. Improper operation can lead to insufficient or uneven rubber mixing, which can be avoided by improving the operation manual. A comprehensive and compliant operation manual is the most basic requirement for rubber product manufacturers,
3. The issue of exhaust should first be ruled out whether there is a process for setting exhaust during the processing. Secondly, it is a problem with the mold itself. If the mold does not have an exhaust groove, the exhaust hole design is unreasonable, or foreign objects block it, bubbles can also be generated
4. The problem during vulcanization is that if the vulcanization time is short and not sufficient, the pressure during vulcanization is insufficient, or there are many impurities in the vulcanizing agent, bubbles will also be generated
5. The product is too thick, causing the heat transfer of the rubber to slow down. In the end, only the outer surface is vulcanized, while the inside is filled with bubbles

What is aging and what are its manifestations? The specific manifestations are softening, hardening, sticking, etc. For example, if the tire is used for a long time, it will crack, which is also a manifestation of aging. For example, if the product is used for a long time and does not have the same tensile and impact resistance as before, these are also summarized as the decline in the physical and chemical properties of rubber products, which is called rubber aging
What is the reason? Let’s talk in detail about it. As a rubber product, it may come into contact with oily, corrosive liquids, etc. It may also be used as a sealing ring for shock absorption and buffering, tires, etc., or it may be used to come into contact with environments such as bacteria and microorganisms. It can be seen that due to its excellent performance and economy, it is applied in various environments, which also leads to its susceptibility to aging, which can be summarized into three factors: physical, chemical, and biological.
Is there any way to prevent the aging of rubber? Unfortunately, this is not the case, just like birth, aging, illness, and death. It is inevitable that mobile phones will become sluggish after prolonged use. However, we can delay the aging process by starting from two aspects: avoiding it and intervening.
Avoidance means trying to avoid factors that may cause aging during the use of rubber products. For example, if rubber products are not resistant to oil, they should avoid touching oil, and products that are not resistant to high temperatures should not come into contact with high-temperature environments.
Intervention refers to actively adding some anti-aging substances, such as heat stabilizers and antioxidants, at the time of production.
Alright, that’s all for now regarding the aging issue of rubber products. If you have any questions or business inquiries, please feel free to contact us.

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