Recently, we have come across many customers who have been troubled by the burrs on silicone rubber products. They have turned to us, Yongyong Silicone Rubber. There are many factors that affect the size of the burrs on silicone rubber products. These factors have been discussed in previous articles. This time, we will share some practical knowledge with you on how to control the size of the burrs on the products.
First of all, it comes to the molds. The structural design of the molds, the demolding method, the processing accuracy, and so on are all closely related to the size of the burrs on the final product.
The second aspect is the molding process. Based on the product structure, appearance requirements, and order quantity, a suitable molding process should be selected. Of course, the one specified by the customer is excluded. The commonly used one is the flat pressing process, which is suitable for products with simple structures and low requirements for burrs. Another one is the transfer molding process, which is generally suitable for silicone rubber products with high dimensional tolerances and burr requirements. There is also a liquid silicone rubber, which is mainly targeted at high-end precision silicone parts and silicone coating products. However, the mold cost is high, and it requires a dedicated liquid silicone rubber injection machine for production. It is suitable for large-scale and high-precision silicone products.
The third forming parameter mainly involves the setting of the vulcanization temperature, vulcanization time, forming pressure, etc. for silicone rubber products. Of course, all these parameters are not absolute. In many cases, some empirical values are needed!
The post-processing of the fourth layer edge trimming is still mostly done manually by traditional methods in many enterprises. For simple products, punching cutting is also adopted. With the development of technology, some enterprises are gradually starting to use methods such as silicone rubber edge trimming, edge trimming machines, and cold silicone rubber edge trimming, each with its own advantages.
In conclusion, no matter what type of silicone rubber products you have, we at Yongyong Silicone Rubber always have a solution that suits you. If you have any concerns about the burrs on silicone rubber products, we welcome you to visit our factory for a tour. Please contact us at 0769-85536776 / Miss Luo.
