Repair method of thermally conductive silicone foam

 

Thermally conductive silicone foam has soft series materials, fast rebound series materials, and hard series materials. Energy management for gasket applications. Provides a higher level of vibration isolation protection for extreme demand environments.

 

Thermally conductive silicone foam provides good shock absorption, impact resistance and other properties for industrial production parts:

In vehicles, electronic equipment manufacturing and aerospace applications, thermally conductive silicone foam high-efficiency shock-absorbing materials must be able to withstand the hazards of shrinking and repeated use, and also handle and absorb devastating impact kinetic energy. Silicone foam material provides good shock absorption, absorbs and disperses impact kinetic energy, and protects components from working pressure. Most shock-absorbing cushions will be damaged after a period of application, but the silicone foam material has excellent air permeability due to its unique perforated structure, and will not be damaged after continuous application. These silicone foam materials have excellent fluid density and conformability, and resist shrinkage and stress relaxation. Silicone foam material can provide the coordination ability, long-term shock resistance and excellent shock absorption effect required for daily necessities design.

How to repair thermally conductive silicone foam?

Extending the service life and accuracy of thermally conductive silicone foam is a technical problem to be solved by many companies. However, in the process of using thermally conductive silicone foam, phenomena such as collapse, deformation, wear and even breakage often occur. In the manufacturing process of thermally conductive silicone, it is necessary to select the characteristics of the silicone material in time, analyze the amount of silicone oil, and repair it to eliminate errors found in the future.

 

Liquid silicone, thermally conductive silicone material and virgin silicone material are stored at room temperature for 6 months. During use, water, impurities, organotin catalysts for the condensation of thermally conductive silica gel, acids, bases and other organic substances containing sulfur, phosphorus and nitrogen may affect the glue. For curing, these impurities must not be mixed during use.

 

Silicone molds are suitable for silicone product factories and are very important. Therefore, it is necessary to correct the defective silicone mold. Before using thermal conductive silicone to repair the mold, a detailed analysis and research should be carried out according to the actual situation of the defective silicon mold, to find out the cause of the thermal conductive silicone mold defect, and to propose remedial measures.

 

Only some molding conditions need to be changed, so the usual method is to change the molding conditions first, and only when the molding conditions are changed can the mold be repaired, which cannot solve the problem. There are many ways to improve the mold, such as electric spark technology, argon arc welding straightening, laser surfacing technology and electric brush plating. The process gap of the thermally conductive silica gel in the structure is reduced, and the process gap requirements of the heat sink and the heat dissipation structure are reduced.