45钢轴在高温盐浴炉中快速加热淬火

大尺寸45钢轴类零件在高温盐溶炉实施快速加热淬火，通过控制加热时间或工件出炉温度可以获得60HRC的高硬度和一定的淬硬层深度。     

塑料模具钢大模块的水冷复合间隙淬火技术

以计算机模拟为基础，在大模块塑料模具钢的热处理过程中，采用复合水冷替代传统的水淬油冷，研制了相对应的生产设备以及控制工艺，并已成功应用于工业生产中。     

Identification of Heat Transfer Coefficients by Use Conditions of Quenching Oil

Heat transfer coefficients of the quench medium are necessary for heat-treatment simulation. Cooling characteristics of quenching oil vary with kinds and usage greatly. Users are selecting oil solutions that come up to their desired hardness and quenching distortion requirements. In particular cooling performance rises by agitation and decompression. Therefore we identified a heat transfer coefficient by usage and kinds of quenching oil. Cooling characteristics are different greatly by a kind of quenching oil. A difference of a cooling characteristic by a kind of oil depends on a temperature range of a boiling stage and the maximum heat transfer coefficient mainly. On the other hand, in a convection stage, there are few changes in a boiling stage. Even if quenching oil temperature is changed, heat transfer coefficients do not change greatly. When quenching oil stirred, heat transfer coefficients of vapor blanket stage and a convection stage rise, but there are a few changes in a boiling stage. When quenching oil is decompressed a temperature range of a high heat transfer coefficient moves to the low temperature side. In addition, a heat transfer coefficient in a vapor blanket stage comes down. For precision improvement of heat-treatment simulation, it is important that the heat transfer coefficient is calculated in conformity to the on-site use reality.     

免耕播种机开沟圆盘淬火过程的数值模拟

用ANSYS10．0有限元分析软件，建立免耕播种机开沟圆盘淬火过程的数学物理模型，对圆盘水冷、油冷、空冷的温度场和应力场进行模拟分析，确定了该零件的最佳淬火工艺方案。     

摩擦片精冲成形实验研究

提出采用精冲工艺进行车辆摩擦片的生产.根据摩擦片的结构特点、加工硬化、应力分布及材料等,讨论了精冲成形和热处理的技术难点,制定了摩擦片的精冲工艺;然后再根据实验过程中获得的齿顶圆、齿根圆及碟形量变化曲线,分析其产生原因并提出了解决成形过程中变形问题的措施,已制造出符合质量要求的摩擦片精冲件.     

锻压机工作凸轮中频感应淬火开裂原因分析

70201B号轮是齐齐哈尔第二机床厂生产的自动锻压的一个重要零部件，在中频感应淬火时，凸轮过渡区出现开裂，裂纹指向凸轮的几何中心，对此进行了多方面的检验与分析，查找成凸轮开裂的真正原因是该凸轮在中频淬火前预备热处理组织不合格，并提出了改进措施。     

壳体用钢30CrMnSiNi2A的强韧化热处理研究

针对壳体用低合金超高强度钢30CrMnSiNi2A，通过贝氏体区短时间等温淬火得到马氏体＋贝氏体＋少量残余奥氏体的复合组织，使强度和韧性得到良好配合。实验考察了等温时间的变化对钢力学性能的影响，得出较优的等温时间范围。     

合理制订渗碳淬火工艺的计算方法

零件通过渗碳淬火工艺获得的有效硬化层深度,受到许多因素的影响。本文阐述和计算零件的材料成分、奥氏体晶粒度、零件质量效果、淬火冷却烈度、各合金元素的淬透性特性值、碳热、淬火加热温度等的影响,并根据计算值同实验值的比较进行适当的修正,制定出合理的渗碳淬火工艺。     

Study on the microstructure and mechanical properties of medium carbon Cr-Si-Mn-Mo-V steel for cast inserted dies

1 Introduction It is known that the die is a key piece of equipment during the development of the automobile industry. Until now, the inserted dies for trimming, reshaping and punching of the automobile covering components were made of forged steel of T10A and Crl2MoV [1,2] and cast iron alloy by built up welding [3,4]. Because of the complicated forging process, the directivity of forged inserted die, the long time taken for production and the large amount of metal, forged inserted dies are…     

激光辐照巴基管涂层强化45钢表面

采用激光合金化的方法，利用巴基管涂层可明显强化４５钢表面，优化激光加工及后续热处理的工艺参数，巴基管在激光辐照时与Ｆｅ发生反应生成Ｆｅ３Ｃ，并且在４５钢表面生成一层含（２．５－３．５）％Ｃ的亚共晶合金化层。经８４０℃，１０－２０ｍｉｎ淬火２，表面硬度可达ＨＲＣ７０，耐磨性能较４５钢淬火组织有较大提高。