Method for solving the deformation of silicone mold

Often heard someone say, silicone production of the mold will soon be deformed. Then please professional technical staff to solve the problem, the results of the problem is their problem".

"Deformation" is another problem in the field of mold, many times because of the material, the limitations of the technology is difficult to avoid, but we can through a lot of details will be deformed control in the range of error. The following is a brief talk about the problem of the deformation of the candle and the silicone mold.

Give an example: people with hardness coefficient only more than twenty of the silica gel to a one meter high large products made a mold. He found that the female die back after the mold is too soft, deformation. The deformation problem is that it can be avoided, and he chose the process of silicone material.

There are two ways to solve this problem:

First, the use of a relatively large hardness of silica gel to do mold. The hardness is too small, the physical characteristics of the mold itself is not enough to support the mold to maintain the original shape, the mold will inevitably deformation.

Second, to strengthen the physical strength of the material through the die. We can paste a few layers of fiber cloth in the brush mode, has been increased to the intensity we need so far. In order to maintain the mold deformation, we also need to do upper mold. Method is to use plaster cast or the method of using the method of pasting glass steel outer mold.

Above mentioned is the technical level of the cause, the general experience of the master will understand, very good prevention. In addition, the mold production, preservation, there are some of the points will not be obvious attention will cause deformation of the mold. Many manufacturers to meet deadlines, mold production could not wait to put into production, not knowing for mold curing time will soon die trace deformation caused by. In general, we use silicone production of molds need to put a period of time and then put into production, usually in about 24 hours.

Improper mold preservation will affect the quality of the mold. Because the silicone mold belongs to the soft mold, if we save the time is longer, because its own physical reasons can affect the quality of the mold. So we suggest that in the preservation of the mold when the mold to the mold together to save. If the decision is not used for long time, can be used to cast a plaster mold, so that can be good to maintain the shape of the mold.

Sometimes we can not control the deformation of the mold, but we can let the mold deformation in the scope of our allowable. For example, we know in advance that the shrinkage of silicone mold is 3%, we can do the mother mold can be considered in the shrinkage rate. The mold can be perfect to meet our expectations by the shrinking of our.

Choose the right material, use the right way to keep the mold out of us.