For silica gel product manufacturers, silica gel molds are the main driving force for silica gel product production, which greatly affects the poor molded products. The reasons for long-term unstable production can also be found in the molds. Rebo will explain them one by one.
Cases:
The Problem of High Failure Rate of Sealing Waterproof Ring In the earlier period of time, our company was producing a large quantity of sealing waterproof ring, but the size was unstable for a long time. during the early stage of mold test, we found that the size of each cavity was far different, even close to 1mm, and the results of each mold were different. This makes me feel that besides looking for problems in the production process, I should also look for problems on the mold.
Troubleshooting:
Train of Thought 1: There may be some unevenness on the template of the machine, causing the mold to be placed non-parallel.
Train of Thought 2: The produced products are inclined, resulting in different sizes.
Therefore, according to the principle of cleaning the plane, the product was found to be much better in the mold test, with a difference of about 0.5mm, but it was still not completely improved. However, the mold met the flatness requirement with a mixture of coarse sand and fine sand in one shot, and after that, many products also met the qualified requirements. Summary feedback:
Among them, it can be concluded that the mold has a great influence on the dimensional and performance changes of the product during the production process in the silicone molding process, and the surface smoothness, mold exhaust groove, precision requirements of the mold core and so on are all closely related.