Ningjin metal stamping parts factory, what are the reasons for mold failure + more than 20 mold engineers

The technician in charge of the Ningjin Metal Stamping Parts Factory said that practice has proved that the quality of die thermal processing has a great impact on the performance and service life of the die. From the analysis and statistics of the causes of mold failure, it is known that 'accidents' of mold failure caused by improper heat treatment account for more than 40%. Xiaoshuo sorted out some information and took everyone to take a look: Heat treatment: deformation caused by improper quenching and tempering process (1) Forging process: This is an important link in the manufacturing process of mold working parts. For high-alloy tool steel molds, technical requirements are usually put forward for the metallographic structure of the material carbide distribution. (2) Preliminary heat treatment: annealing, normalizing or quenching and tempering shall be used according to the different materials and requirements of the mold working parts to change the structure, eliminate the structural defects of the forging blank, and change the processing technology. High-carbon alloy die steel undergoes appropriate preliminary heat treatment, which can eliminate the network secondary cementite or chain carbides, spheroidize and refine the carbides, and promote the uniformity of carbide distribution, which is beneficial to ensure quenching and recovery Fire quality, improve mold life. (3) Quenching and tempering: This is the key link in the heat treatment of the mold. If overheating occurs during quenching and heating, it will not only cause greater brittleness of the workpiece, but also easily cause deformation and cracking during cooling, which will seriously affect the life of the mold. Special attention should be paid to prevent oxidation and decarburization during the quenching and heating of the die, and the heat treatment process specifications should be strictly controlled. When conditions permit, vacuum heat treatment can be used. After quenching, it should be tempered in time, and different tempering processes should be adopted according to the technical requirements. (4) Stress relief annealing: After rough machining, the mold working parts should be subjected to stress relief annealing. The purpose is to eliminate the internal stress caused by rough machining, so as to avoid excessive deformation and cracks during quenching. For molds with high precision requirements, they need to undergo stress relief and tempering treatment after grinding or electrical machining, which is conducive to stabilizing the precision of the mold and improving the service life. Hardware, 15 years of focus on Ningjin Metal Stamping Parts Factory, 5000 square meters production workshop, hundreds of precision processing and production equipment, more than 20 Ru0026D and design engineers, monthly 100+ sets of mold processing capacity and daily production capacity of 3 million punching times, stamping accuracy Up to 0.01mm, 16 quality inspection layers are strictly checked. It can quickly solve the urgent problem of time when choosing hardware stamping processing, solve the problem of stamping accuracy, and solve the problem of production quality. Over the past 15 years, I have been conscientious and dedicated to the results of your needs only for the results of your work!