预硬化钢预先由钢生产厂家淬火硬化处埋的钢材。达到模具最终使用硬度要求，模具加工成型后不用再进行热处理，避免模具变形导致报废，尤其制造大型模具时更是不能冒这个风险，所以一般都购买预硬化状态的钢材。
研究了烘烤温度、烘烤时间和预拉伸应变量对罩式炉退火工艺生产的各向同性钢的烘烤硬化性的影响，并与力学性能相当的冷轧烘烤硬化钢进行了对比。
The effects of baking temperature, baking time and prestrain on the bake hardenability and dent resistance of isotropic sheet steel and BH sheet steel produced by batch annealing were studied.
国产新型塑料模具钢主要有预硬钢、时效硬化钢、淬火——回火钢、冷挤压成型模具钢、耐蚀钢等类型。
The new domestic - developed plastic mould steels include prehardening steel . age hardening steel, quenching-tempering steel, cold -forming steel, and anti - corrosion steel, etc.
研究分析烘烤温度、烘烤时间、预应变量等烘烤条件对超低碳烘烤硬化钢烘烤硬化性能的影响。
The present paper discusses the effect of baking temperature, baking time and pre-strain on the bake hardenability of ultra low carbon bake hardening steel (ULC-BH steel).
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