How to control the burr problem of silicone rubber products

Recently, many customers have come to us Yongyong Silicone Rubber because the problem of burrs of silicone rubber products has caused them some troubles. There are many factors that affect the burr size of silicone rubber products, which have been introduced in previous articles. In this issue, I will share with you some dry goods, how to control the burr size of products.

First of all, it is the mold, the structure design of the mold, the demoulding method, the machining accuracy, etc. are closely related to the size of the burrs when the final product is formed.

The second is the molding process. It is necessary to comprehensively consider which molding process to choose according to the product structure, appearance requirements, and order volume, unless of course the customer specifies. Generally, flat pressing is commonly used, which is suitable for products with simple product structure and low burr requirements. The other is that the transfer process is generally suitable for silicone rubber products with high dimensional tolerance burrs. There is also a liquid silicone that mainly competes for high-end precision silicone parts and silicone-encapsulated products, but the cost of the mold is high, and a special liquid silicone injection machine is required to produce it, which is suitable for high-volume, high-precision silicone products.Fabric reinforced diaphragm

Third, the molding parameters, mainly the vulcanization of silicone rubber products, are the set vulcanization temperature, vulcanization time, molding pressure, etc. Of course, all parameters are not absolute, and some experience values ​​are needed in many cases!

Fourth, the post-processing of burrs, now quite a number of enterprises still use traditional manual trimming, and simple products also use punching. Each has its own advantages, such as burring.Rolling diaphragm

Founded in 1993, Hangzhou Biaozheng Rubber Plastic Fittings Factory is a professional enterprise engaged in the research, design and manufacture of rubber diaphragms.

The company not only has a complete set of rubber molding products such as kneading machine, open mill, filter machine, flat vulcanizing machine, etc., but also set up a mold processing and production center, which can customize various rubbers for customers. Diaphragm.