The size of silicone products need to be done in accordance with the design requirements, but silicone products are generally not as strict as other products with very tight requirements, such as many metal products require the size to μ. Silicone products are not so strict, only need to meet the requirements of the design, because of the nature of silicone material, the size of silicone products can not be too accurate, but sometimes the size of silicone products becomes larger or the size of silicone deviates. How does this happen, and how should manufacturers of silicone products avoid it?

Reasons for the size of silicone products to increase:

1, silicone products in the production of producing countries molding temperature is too high will accelerate the vulcanization of silicone products, resulting in silicone products in the molding mold fluidity decline, will lead to silicone product size deviation, molding temperature is too low, will lead to silicone products after the size of the larger.

2, when the molding pressure is too high, it will lead to the size of the silicone product.

3, too much silica gel feed, will cause silica gel product bag wind, silica gel product load is high, resulting in silica gel product size is too large.

4, sometimes it may be the design of the mold itself, the mold design is not rigorous, unqualified, then in the production no matter how to adjust the size will be found there are some errors.

Reasons for the deviation of silicone size:

In the same machine processing and for the machine parameters and temperature and pressure and so on have not changed, the mold time will affect the appearance of the product size change, so the product size deviation for the control of temperature time is very important, because the mold time is not controlled within a certain time range, the vulcanization temperature of silicone products will increase. There will naturally be deformation, so the control of time during processing can not only ensure the same size of the product, but also ensure the quality of the product, if the time is not controlled, for a long time, for a short time, it will lead to various adverse phenomena in the product.

Secondly, raw materials may lead to different sizes of products. In the production of long-term placed rubber materials, the feel of vulcanized products is different, and the viscosity of products is relatively large, the tension is stiff, and the size will naturally be different. This reason is caused by the failure of vulcanizing agent for too long of raw materials, resulting in decreased flow performance. So want to maintain the size and shape of the product, first from the source, for the silicone products manufacturers affect the product factors more reasons, in addition to the reasons of the machine and raw materials, the impact of the mold on the product is also one of the main reasons, different problems can be dealt with with different solutions.