Ten problems that should be paid attention to in silicone rubber molds

Speaking of silicone rubber products, I believe everyone should be familiar with them, such as our common silicone protective sleeves, rubber tires used in automobiles, door seals, etc. These products need to be molded by molds. The quality of the mold is good or bad It directly determines the quality of the product, so what problems should we pay attention to before opening the mold? Through 23 years of manufacturing experience, Yongyong Silicone Rubber will come to review it with you today.

First of all, according to the different molding methods, silicone rubber molds can be roughly divided into three categories: flat molds, transfer injection molds, and injection molds. Among them, the most common one is flat molds. Now the more popular silicone products on the market also have liquid injection molds. etc., the specific method should be determined according to the product structure and appearance requirements.

1. Determine the mold forming method according to the product structure, appearance and size requirements.

2. It is very important to analyze the product structure and determine the demoulding method of the product, which directly affects the smooth demoulding of the subsequent mass-produced products, the labor intensity and production efficiency of the production personnel.

3. Determine the size of the mold and the number of holes according to the customer's order quantity and the tonnage of the machine.

4. It is also very important to determine the parting surface of the mold, which will directly affect the processing efficiency and difficulty of the mold, as well as the appearance of the product, such as whether the appearance surface of the product is allowed to have a parting line, etc.

5. According to the customer's product quality and price requirements, select the appropriate mold steel, which will have a significant impact on the processing and service life of the mold.

6. Determine the shrinkage rate of the mold according to the product material and hardness requirements, which will affect whether the product can meet the size requirements.