How to demold silicone products?

In the production process of silicone products, the demolding step is the most crucial one. No matter who is involved, they will inevitably encounter problems with difficult demolding. If such problems are severe, they will seriously affect the production efficiency of silicone products. So, how can we solve the problem of difficult demolding?

1. Surface treatment of molds
The molding mold for silicone products should be cleaned before using the hydraulic molding machine, especially for newly removed molds that must be sandblasted first.
Choose different detergents for mold.
The sandblasted mold must be heated to a sufficient temperature before mold placement, and the release agent must be sprayed well before molding.
It is worth noting that electroplating molds cannot be sandblasted, including resin sand.

2. Spray treatment
In the molding process of silica gel products, silica gel products do not stick to either side of the mold or the mold spray, but sometimes it is difficult to stick.
Solution: Spray bottle or other clean water. If you want the product to stick, after spraying, the product will stick to the place you want to stick.

3. Adjustment of mold temperature
The product likes to stick to the lower half of the mold temperature. When the upper mold temperature is 175 ℃ and the lower mold temperature is 165 ℃, the product usually sticks to the lower mold when lifting the mold.
In short, when silicone products are difficult to demold, do not use better demoulding agents instead of demoulding agents to facilitate drawing, or increase the use and frequency of demoulding agents. Excessive demoulding agents can easily cause dirt on the surface of the mold, which will have a certain impact on the appearance of the product. The use of excessive demoulding agents can also affect the adhesion ability of silk screen printing and injection oil in the later stage. If the above method is not very effective, it can be considered to add an appropriate amount of internal release agent when preparing the material, but it will increase the additional cost of the product.
How to quickly demold silicone products
Silicone product factories know that the more modules they can produce in a day, the lower the corresponding cost. The lower the unit price of silicone sleeves, the more obvious the price advantage. Beijite Silicone Products from Silicone Products Factory, as well as the secrets revealed by customers, have these methods for improving the demolding speed of silicone sleeves.
After refining raw materials, adding mold release agents and rapid curing agents, the silicone product factory enhances the fluidity of the silicone sleeve. The original 200 second silicone sleeve can shorten the molding time by 30% under the same temperature and pressure
The silicone product factory adjusts the temperature and pressure of the machine. Usually, the higher the temperature, the faster the silicone sleeve is formed. However, excessively high temperatures can also cause explosive edges.
Reduce the exhaust frequency of the machine, exhaust the upper and lower molds at a slower speed. If the silicone sleeve is not particularly complex, the exhaust can be reduced twice.
Silicone product factories need to work hard on molds and open more discharge tanks to allow the remaining materials to come out. If there are a large number of silicone sleeves, you can choose to open several more holes on the large mold to increase the output of each mold.