Galvanized flat washers, a flat washer manufacturer that controls the quality from the fundamental + 16 quality inspections

Galvanized flat washers, if the quality control is not in place during the production process, will have large burrs, imprinting on the surface and other defects, which do not meet the level requirements of flat washers. The quality control needs to be traced back to the production of the flat washer mold. Xiaoshuo will understand with you: In order to remove the residual stress of grinding, the flat washer mold should be treated at low temperature after grinding to improve toughness. This process is an important part of the mold production process. It is necessary to strictly control the forging temperature scale, draw up an accurate heating scale, select an accurate forging force method, and slow cooling or timely annealing after forging. Special attention should be paid to avoid oxidation and decarburization during the quenching and heating of the die. The heat treatment process scale should be strictly controlled. Due to the quenching stress and the network carbonized structure under the action of the grinding force, the phase change of the structure can easily cause the workpiece to crack. This step is an important part of mold heat treatment. According to the difference between the materials and requirements of the mold parts, the annealing, normalizing or quenching and tempering and other preliminary heat treatment processes are selected to eliminate the shortcomings of the forging blanks and improve the processing technology of flat washers. In addition, there are the following points to note: 1. Preliminary heat treatment; 2. Forging process. ; 3. Quenching and tempering; 4. Stress relief annealing. This process is limited or not obvious for general low-carbon steel plates, but it is very useful for stainless steel. The detailed annealing process needs to be determined in detail according to the material and requirements. Hardware, 15 years of craftsmanship focused on galvanized flat washers, 5000 square meters production workshop, 3 million punching production capacity per day, imported and national standard raw materials, 16 quality inspection layers strictly controlled, hundreds of precision processing production equipment, flat washers production The accuracy can reach 0.01mm. It can quickly solve the problem of customizing time for flat washers, solve the problem of stamping accuracy, and solve the problem of production quality. Choose, choose rest assured!