The size of silicone products needs to be carried out according to the design requirements, but silicone products are generally not as strict as other products with tight requirements. For example, many metal products require dimensional accuracy. Silicone products are not so strict, as long as they meet the design requirements. Due to the nature of the silicon material, the size of the silicon product is not very accurate, but the size of the silicone product sometimes becomes larger or the size of the silicone product is deviated. How did this situation happen, and how should a manufacturer of silicone products avoid it?
The reason why the size of silicone products becomes larger:


     1. If the molding temperature of silicone products is too high in domestic production, the vulcanization of the silicone product glue will be accelerated, resulting in a decrease in the fluidity of the silicone product glue in the molding mold, resulting in a dimensional deviation of the silicone product. If the molding temperature is too low, the size of the silicone product will change after molding. big.


     2. When the molding pressure is too high, the size of the silicone product will become larger.


     3. There are too many silicone materials, the silicone products are windy, the load of the silicone products is high, and the size of the silicone products is large.


     4. Sometimes it may be the design problem of the mold itself. The mold design is not strict and unqualified. Errors will also be found in how to adjust the size during production.


     Reasons for the size deviation of silicone products:


     In the case of processing on the same machine and without changing the parameters of the machine, temperature and pressure, etc., the time of mold release will affect the change of the appearance and size of the product, so the size deviation of silicone products is controlled by the temperature and time. Very important, since the mold release time is not controlled within a certain time range, the vulcanization temperature of silicone products will increase for a long time, and deformation will naturally occur. Therefore, controlling the time during processing can not only ensure the same size of the product, but also To ensure the quality of the product, if the time is not controlled, and the time is long and short, it will lead to various bad phenomena in the product.


     Secondly, due to the raw material, the size of the product is different. When using long-term rubber for production, the vulcanized product has a different feel, the product has a high viscosity, and the lifting degree is stiff, so the size is naturally different. The reason is that the vulcanizing agent fails over time for the raw material, and the flow performance decreases. If you want to maintain the size and shape of the product, you must first grasp it from the source. For silicone rubber product manufacturers, there are many factors that affect the product, except for the machine and raw materials. In addition to the reasons, the impact of the mold on the product is also one of the main reasons. Different problems adopt different solutions.

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