Thermally conductive silicone pad is a very important thermal management material, which can conduct the heat generated by electronic equipment to ensure the normal operation of electronic equipment. So, how is the thermally conductive silicone pad produced? This article will introduce you to the production process of thermal silicone pad.

1. Preparation of raw materials

The main raw materials of thermal silica gel pads are silica gel, thermal conductive agent, hardener and so on. These raw materials need to undergo strict quality inspection and screening to ensure the quality and performance of the final product. At the same time, it is also necessary to prepare other materials and equipment required for production, such as molds, ovens, mixers, etc.

2. Preparation of silica gel substrate

First, it is necessary to mix the silica gel and the heat conducting agent to prepare the silica gel substrate. The mixing ratio should be strictly controlled to ensure the thermal conductivity and hardness requirements. The mixed silicone substrate needs to be processed through a calender or extruder to make it into a sheet or ribbon silicone material of a certain thickness and size.

3. Processing mold

When producing thermal silicone pads, it is necessary to design and manufacture corresponding molds according to the shape and size of the product. The design of the mold should meet the requirements of thermal silica gel pads, including thermal conductivity, hardness, shape, size, etc.

4. Injection molding

Put the silicone substrate into the mold, press the silicone substrate into the space in the mold through the injection molding machine, and inject the hardener. The role of the hardener is to force the silicone to form a solid silicone pad in the mold. During the injection molding process, parameters such as the thickness, hardness, and thermal conductivity of the silicone substrate must be well controlled to ensure the quality and performance of the final product. In the process of injection molding, the silicone substrate is placed in the mold, and then the silicone substrate is pressed into the space in the mold by an injection molding machine. This process needs to control parameters such as the thickness, hardness and thermal conductivity of the silicone substrate to ensure the quality and performance of the final product. During the injection molding process, the silicone substrate needs to be processed and handled several times. First, in the injection molding machine, the silicone substrate is heated to a temperature that makes it soft and able to flow into the cavity of the mold. Then, a hardener is injected to start curing and hardening the silicone substrate. The type and amount of hardener can be adjusted according to the requirements and design of the product.

5. Drying and curing

After injection molding, the thermally conductive silicone pad needs to be dried and cured. Under normal circumstances, the heat-conducting silicone pad will be put into the oven for drying and curing, and the time and temperature should be adjusted according to the specific situation. During the curing process, the silicone pad will gradually harden and have certain elasticity and thermal conductivity.

6. Quality inspection and packaging

During the production process of thermal conductive silicone pad, strict quality inspection is required. It mainly includes visual inspection, hardness test, thermal conductivity test, etc., to ensure that the quality and performance of the final product meet the requirements. Thermally conductive silicone pads that have passed the quality inspection need to be packaged and labeled for storage, transportation and sales.

In short, the production process of thermal conductive silicone pads includes raw material preparation, preparation of silicone substrates, mold processing, injection molding, drying and curing, quality inspection and packaging. These links need to be carefully controlled and adjusted to ensure the quality and performance of the final product.