论文部分内容阅读
研究了半高速钢冷轧辊材料的锻热淬火工艺,并与传统热处理工艺获得的力学性能和微观组织进行比较评价,得到如下结论:半高速钢冷轧辊材料锻热淬火(终锻温度大于等于900℃、油冷)+750℃回火后的碳化物尺寸适中,分布均匀弥散,细小的碳化物在最终热处理时容易固溶,对最终热处理组织较为有利;新工艺轧辊的强度、塑性和冲击韧性介于球化退火和调质热处理之间,有着比较均衡的强韧性,而且硬度适中,易于机械加工。因此,新的锻热淬火工艺可以代替传统的锻后热处理工艺,达到节能降耗、提高生产效率的目的。
The technology of forging quenching of semi-high speed steel was studied and compared with the mechanical properties and microstructure obtained by the traditional heat treatment process. The conclusions are as follows: The semi-high speed steel cold forging material quenching (final forging temperature 900 ℃ or more) ℃, oil-cooled) After the tempering at 750 ℃, the carbide size is moderate and dispersed evenly. The fine carbides easily dissolve in the final heat treatment, which is more favorable to the final heat treatment. The strength, plasticity and impact toughness Between the ball annealing and quenching and tempering heat treatment, has a more balanced strength and toughness, but also moderate hardness, easy machining. Therefore, the new forging quenching process can replace the traditional forging heat treatment process, to achieve energy saving, improve production efficiency.