Reasons and solutions for missing corners and materials in the production process of silicone products

Missing corners and materials in the production process of silicone products are a problem that many silicone product manufacturers will encounter. It is understood that the factors that will develop this situation in the future are often human-made, such as the way of placing materials, weight control of raw materials, etc.

Reasons for lack of material and corners in silicone products:

1. The most serious reason is incorrect placement of materials.

For products with a mid-plate mold core, sometimes it is necessary to place the rubber up and down, and the mold cavities are too deep or too complex, and the weight needs to be a little heavier than the original plan. Placement is the most important, so in While placing it, you can imagine how to place it so that the rubber material can be vulcanized more comprehensively to ensure that there is no shortage of material or corners.

2. Machine mold problem.

The pressure needs to be adjusted during the vulcanization process, otherwise not only the shortage of materials but also the phenomenon of undercooking will occur. The exhaust gas cannot be discharged during the mold closing process, resulting in air inclusions and shortage of materials.

3. The mold temperature is too high, causing the rubber material to burn to death, the raw material fluidity is poor, and the product cannot be vulcanized on time.

 

Solutions to the shortage of materials and corners in silicone products:

1. Place the raw materials in a relatively central position. If you need to place the materials up and down, do it step by step.

2. If the mold is not reasonable, modify it to ensure that the rubber material and the mold are properly matched, and add an exhaust slot to increase the exhaust.

3. The placement method does not change the method of adding weight to the raw materials. After the vulcanizing agent of the raw materials has been left for more than three days to expire, it must be re-mixed to meet the flow requirements to ensure complete vulcanization. The mold pressure and temperature must be adjusted appropriately, and the personnel operating methods must be correct.

The molding process of silicone products is a complex process. Don't compete with the output and speed. Do it first and then do it quickly. Otherwise, you will lose all your efforts by making too many defective products.