工模具热处理的主要任务是在选材和其它条件一定的情况下,充分发挥和挖掘材料的性能潜力,以达到提高工模具使用寿命的最佳效果。硬度是目前工模具设计图上对热处理提出的唯一或最主要的技术要求,也是检验的基本指标,因此,在设计时如何根据不同工模具的性能要求和实际服役条件,正确设定要求的硬度是很重要的。设定硬度过低,工模具的强度不足、耐磨性差,使用寿命会显著降低,这是一般比较注意的。但如不全面考虑硬度和其它机械性能之间的相应关系,而盲目追求高硬度,也会导致工模具使用寿 Mold heat treatment of the main task is in the selection of materials and other conditions under certain circumstances, give full play to and explore the potential performance of the material in order to improve the life of the mold tool best results. The hardness is the only or the most important technical requirement for the heat treatment on the mold design drawing at present and also the basic index of the test. Therefore, how to set the required hardness correctly according to the performance requirements and actual service conditions of different molds during design It is very important. Set the hardness is too low, the lack of strength of the mold, wear resistance is poor, the service life will be significantly reduced, which is generally more attention. However, if not fully consider the corresponding relationship between hardness and other mechanical properties, blind pursuit of high hardness, can lead to tool life