How to shorten the vulcanization time of silicone rubber products?

To improve the production efficiency of silicone rubber products, the most important thing is to improve the vulcanization speed of silicone rubber products, so as to shorten the time required for the molding process of silicone rubber products. So what should be done to shorten the vulcanization time?

To improve production efficiency, the most important thing is to improve the vulcanization speed of silicone rubber products, so as to shorten the time required for the molding process of silicone rubber products. So what should be done to shorten the vulcanization time?

1. It is produced by vacuum curing press. If there is no vacuum curing agent, it is best to use tools to pry the mold during exhaust to assist exhaust.

2. Properly increase the amount of vulcanizing agent added to silicone rubber raw materials, or select rapid vulcanizing agent, so as to speed up the vulcanization of silicone rubber products.

3. The molding operator shall speed up the operation and try to reduce the time outside the mold, so as to stabilize the mold temperature of silicone rubber products and improve the vulcanization speed of silicone rubber products.

4. Change the discharging mode of silicone rubber raw materials, so that the silicone rubber raw materials can gradually fill the whole mold cavity from the side wall of the mold cavity during the pressurization of the mold.

5. It depends on the structure of the product. As long as the silicone product is not deformed and numb, if it is a silicone button, you should also pay attention to whether the load will be too high.

6. Change the exhaust times and exhaust stroke, which requires a higher working experience for the commissioning personnel, because generally speaking, the larger the exhaust stroke, the more exhaust times, and it will be more conducive to exhaust. However, this is not the case. It needs to be determined according to the structure of the product. Some silicone rubber products will have bad bubbles when the exhaust stroke is large, but it can be solved by turning it down.

7. On the premise of ensuring product quality, increasing mold temperature and mold locking pressure of vulcanizer is also an effective method to shorten vulcanization time of silicone rubber products.