mold,molding

  Reactor is an indispensable important component of the entire power system. The reactor generally used in the frequency converter can not only prevent the interference from the grid, but also reduce the pollution of the grid by the harmonic current generated by the rectifier unit. Therefore, the choice of its insulating material must be cautious. Relevant departments have determined that today's   FR4 epoxy board   is the best insulation material for reactors. Next, let's take a concrete look at why FR4 epoxy board is used as an insulating material? FR4 is made of epoxy resin impregnated with electrical glass cloth by high temperature and hot pressing. It has the characteristics of good insulation, high temperature resistance, and good mechanical strength. And there is no need for regular testing, which greatly saves manpower and material resources. The high temperature resistance of FR4 can reach 160 degrees. Even in the scorching summer, there is no worry that it will...

  The   fr4 epoxy board   is a code for the grade of flame-resistant material, which represents a material specification that the resin material must be able to extinguish itself after the burning state. Epoxy resins generally refer to organic polymer compounds containing two or more epoxy groups in the molecule. Except for a few, their relative molecular mass is not high. The molecular structure of epoxy resin is characterized by the active epoxy group in the molecular chain. The epoxy group can be located at the end, middle or in a cyclic structure of the molecular chain. Because the molecular structure contains active epoxy groups, they can undergo cross-linking reactions with various types of curing agents to form insoluble and infusible polymers with a three-way network structure. The advantages of cnc machining fr4 epoxy board 1. Various forms: various resins, curing agents, and modifier systems can almost adapt to the requirements of various applications on th...