Curb mold manufacturing and processing methods used in electrical discharge machining is increasingly widely used, but the cause of the defect EDM is a lot. Since the electric discharge machining is generated by means of high-temperature discharge leaving the mold surface melt processing methods, therefore, the processing surface of white discharge machining deteriorated layer, and to a strong tensile stress road rock mold, so that road rock mold factory, deformation or cracks and other defects in the mold of the electrical processing often. We are using electric discharge machining of the mold, must take appropriate precautions to prevent overheating and decarbonization heat treatment and tempering sufficiently to reduce or eliminate residual stress; internal stress quenching in order to fully eliminate, the need for high temperature tempering. Curb mold in China's market has become more mature, but still requires companies to continuously introduce new technology the best way to rock mold, precision plastic mold with hardness are growing. Baoding Kai Jia plastic mold box mold factory will provide customers a variety of high quality, various models, a variety of curbs to meet our customers achieve high-quality road construction and drainage works, and I plant also recycles all kinds of waste mold box mold, to achieve maximum benefits.