我厂是齿轮箱专业化生产厂,每年需要锻造齿轮和轴类锻件有几十万件,而且,大部分是用5crMnMo 钢制造的胎模进行锻造的。由于锻件在胎模中停留时间较长,使模具温度上升,有时模腔温度竟升高到700℃左右,往往锻完一件或几件后,就需要把模具放在水中冷却。在这样反复升温冷却的恶劣条件下,致使模具寿命降低,锻摸材料消耗量增大,我厂每年大约需 Our factory is specialized gear box manufacturing plant, each year forging gear and shaft forgings have hundreds of thousands, and, most of them are forged with 5 crMnMo steel tire mold. As the forging dies stay longer in the mold, the mold temperature increases, and sometimes the cavity temperature actually increased to about 700 ℃, often forging one or a few pieces, you need to mold on the water cooling. In such harsh conditions of repeated cooling, resulting in lower die life, forging material consumption increases, I plant each year about