Insulation sleeves are white as an insulating material. Nowadays, with the continuous development of scientific research, there are many kinds of insulating sleeves, such as PVC casing, heat shrinkable sleeve, nylon tube and FR-4 epoxy tube. Of course, each has its own different purpose. Today I mainly talk about electrical insulation material FR-4 epoxy tube.
First of all, we have a simple understanding of the material of this pipe.
It is mainly made of epoxy resin impregnated with electrical glass cloth through high temperature and hot pressing. I can’t disclose the parameters in the specific process. It has good insulation, high temperature resistance (B grade), high mechanical strength, easy processing, flame retardant (UL 94V-0), anti-static, moisture-proof and so on. Suitable for insulation parts of high-end electronic and electrical equipment.
Next, give a detailed explanation of its characteristics.
First, insulation. Parallel layer breakdown voltage (in 90 ± 2 ° C transformer oil): ≥ 40KV. Although China’s electricity consumption is rising, the high voltage is still very different from its breakdown voltage, so it is very safe.
Second, high temperature resistance. Its high temperature resistance up to B grade, about 155 degrees, generally does not exceed this temperature, the material will not appear deformation, the insulation performance is reduced, the general temperature of the insulating sleeve is not as high as Baidu, so the life of the pipe It will also increase, and inadvertently saves one cost.
Third, low water absorption. D-24/23, plate thickness 1.6mm): ≤19mg, which is the icing on the cake for its insulation performance.
Fourth, high precision. This greatly improves the accuracy of the product and meets the requirements of high-end electronic products.
I think everyone has a preliminary understanding of the insulation material FR-4 epoxy tube of the insulating sleeve. If you want to know more, please visit the station.