Processing technology for combining silica gel and metal

Abstract

The invention relates to a producing technology for combining flexible glue and hard materials, in particular to a processing technology for combining silica gel and metal. The processing technology for combining the silica gel and the metal comprises the following steps that a, glue is brushed on a transition piece A and a transition piece B, and the transition piece A and the transition piece B are fixed in a lower mould through a fixing part; b, silica gel raw materials are placed on the lower mould, an upper mould is closed on the lower mould, hot pressing and forming is conducted, the transition piece A, the transition piece B and the silica gel are directly clad and formed, and in a formed part after being formed, the silica gel wraps the two side edges of the transition piece A and the transition piece B; c, the glue is brushed on the transition piece A and the transition piece B directly clad and formed with the silica gel; and d, the formed part in the step c is attached to an appearance metal part with a magnet. According to the processing technology for combining the silica gel and the metal, original bonding between the silica gel and the metal is changed into bonding between metal, the other function of the transition pieces is shape fixing and finalizing, shrinkage of the silica gel after being formed is avoided, thus machining precision demands of products are maintained, the metal with magnetism and the transition pieces are more easily attracted, and the extra microscale glue can automatically flow into a silica gel storing cavity formed by the silica gel edge.

Description

technical field [0001] The invention relates to a production process of combining soft rubber with hard materials, such as metal, ceramics, special glass, and hard plastic, and specifically relates to a combination treatment process of silica gel and metal. Background technique [0002] The traditional molding method is generally silicone hot pressing, that is, put the metal into the mold and then put the rubber into it and mold it together. This method is easy to crush and damage the metal. The metal is usually made of aluminum or stainless steel, especially Aluminum is easy to compress and deform. The cost of metal is relatively high. Once the metal is scratched or crushed, it is scrapped. The defect rate is relatively high; another point is that the molded products have edges when they are taken out, which are not easy to remove, and manual removal is easy to scratch the metal, or the removal of the burrs is not clean, and it is not easy to clean. If the metal is scra...

AI Technical Summary

Problems solved by technology

[0002] The traditional molding method is generally silicone hot pressing, that is, put the metal into the mold and then put the rubber into it and mold it together. This method is easy to crush and damage the metal. The metal is usually made of aluminum or stainless steel, especially Aluminum, easy to compress and deform

The cost of metal is relatively high. Once the metal is scratched or crushed, it is scrapped

The defect rate is relatively high; another point is that the molded products have edges when they are taken out, which are not easy to remove, and manual removal is easy to scratch the metal, or the burr removal is not clean, so it is not easy to clean

If the metal is scratched, it will be scrapped; if the burr is not removed cleanly, it will be unsightly and affect the hand feeling

[0003] Moreover, the traditional way of gluing is to make the silicone part first, and not to bond with the metal. If it is directly bonded, because the silicone is soft and will shrink, it is easy to wrinkle and deform after shrinking. So dense, when the silica gel and metal are bonded, it is difficult to control the amount of glue. Once the silica gel and the metal are squeezed, the glue will run outside, which is not easy to clean. The problem of deformation is more likely to be reflected after a long time.

Images