引言近几年来,等温淬火可锻铸铁作为新型的工程材料脱颖而出。其性能可与锻造钢相媲美,在某种情况下甚至还优于锻造钢。把等温淬火可锻铸铁用于制造汽车零件比起用锻钢件来有许多优点,其中某些优点是设计和制造灵活、重量轻、抗弯强度高、切削性好,以及制造成本可以大大降低。 Introduction In recent years, isothermal quenching malleable iron as a new type of engineering materials come to the fore. Its performance is comparable to forged steel, and in some cases even better than forged steel. There are a number of advantages to using isothermally hardened malleable cast iron for the manufacture of automotive parts over forged steels, some of which are the design and manufacture flexibility, light weight, high bending strength, good machinability, and very low manufacturing costs.