The parting line of silicone products generally refers to the protruding part formed by the thermal curing of the gap between the material and the mold during the molding process of the silicone rubber. The parting line is an important part of the appearance of the silicone product and the appearance of the well-controlled product to customers. It is very good. So how to control the parting line of silicone products?

Silicone vulcanization

For the clamping line of silicone products, first of all, the relevant control must be done within the silicone product manufacturer. When producing silicone products, the temperature and pressure of the vulcanizer must be strictly controlled. The pressure will directly affect the clamping. The thickness of the line, if it is not well adjusted, no matter how good the mold is, will not meet the requirements of a good clamping line.

And it is also related to the speed of the operator. Silicone molding is produced by the principle of high-temperature vulcanization. The longer the time is, the lower the temperature of the mold will be. Then the next mold may produce less good products. At this time, the operator is required. Control the time of material swing and mold ejection to control the problem of the closing line of the next mold.

Silicone mold

There is another point that has a great relationship with the clamping line, that is, the mold. As the so-called two complements each other, it is the cooperation between the mold and the silicone product factory. A qualified mold can be repaired frequently, and other production problems are silicone products. Manufacturers will figure it out by themselves.

The impact on the parting line is mainly reflected in the self-disassembly process. How wide should the self-disassembly of a silicone product be? How deep? Flat bottom? Or sharp-edged? These are all made by the mold factory based on industry experience. Of course, the silicone factory can make relevant suggestions. Because the mold clamping line of the produced silicone products is mainly completed by the vulcanizer, the problem of self-disassembly is generally done well. There will be no problem.

But there is one thing that I believe that many silicone productions have encountered, and that is the so-called “dislocation”, the mold is opened and closed, so there is a self-disassembly and touch of the 2-layer board and the multi-layer board. If it is misplaced, then it is good It is impossible for vulcanizers or debugging personnel to make good silicone products. Therefore, mold is also the main point when controlling the clamping line of silicone products.

Manual sector processing

Another point is manual processing. There will be some residues on the clamping line after production. This is what we often call burrs. When picking needles, you cannot use scissors, because if the two operations are opposite, the position of the parting line will be increased, which will make the product quite ugly and become defective product.

 

Based on the above three points, if you want to control the parting line of silicone products to form high-quality products, then you must control it from the three directions of vulcanization production, mold processing, and manual processing so that the parting line is thin and beautiful, and the production Come out with a beautiful silicone product. For more information on the manufacture of medical silicone products, please contact Newtop today.