钢件热处理后的组织和性能不均匀有许多原因,而设法使工件沿截面上的组织、性能分布与应力分布相适应、可延长其使用寿命,充分发挥材料潜力,早为人们所熟知。然而,在实际工作中却常被忽略,为了引起充分重视,为了便于讨论问题,建议引入“强度场”这个词。例如,大模数调质齿轮,一般是毛坯调质,然后滚齿。结果,加工后暴露出来的齿面和齿根性能常不够理想。有些工厂采用先粗滚、后调质、再精滚的工艺。这样作,不 There are many reasons for the uneven microstructure and properties after heat treatment of steel parts. It is well known that trying to adapt the distribution of structure and properties along the cross section to the stress distribution can prolong the service life and give full play to the material potential. However, it is often neglected in practical work. In order to draw enough attention, in order to facilitate the discussion of the issue, it is suggested to introduce the word “strength field”. For example, large modulus quenching and tempering, generally rough quenched, and then hobbing. As a result, the exposed flank and root performance is often less than ideal. Some factories use rough first, after quenching and tempering, then fine rolling craft. Do this, no