热锻模具的润滑,除减小摩擦阻力外。还要起到冷却模具的作用。因此,必须采用冷却性能好的润滑剂。我厂过去使用机械油或水基石墨作为润滑剂,由于高温,机械油燃烧产生黑烟,严重污染工作环境,而且冷却效果差,容易使模具因产生热裂或塑性变形而失效。使用水基石墨,虽然卫生条件较好,但其使用温度一般不能超过290℃,因为水基石墨在300℃以上即不能浸润模 Hot forging die lubrication, in addition to reducing frictional resistance. But also play a role in cooling the mold. Therefore, you must use a good cooling lubricant. In the past, our factory used mechanical oil or water-based graphite as a lubricant. Due to the high temperature, the mechanical oil produced black smoke which seriously polluted the working environment. Moreover, the cooling effect was poor and the mold easily failed due to thermal cracking or plastic deformation. The use of water-based graphite, although hygienic conditions are good, but its use temperature generally can not exceed 290 ℃, because water-based graphite at 300 ℃ or more that can not infiltration mold