针对淬火过程的畸变问题,介绍了一种有效控制畸变的模压淬火技术与装备。通过控制作用力大小、周期与方式,调整淬火模具的结构与尺寸,控制冷却液的流量、流态及流向等,控制畸变过程,减小工件的畸变,在满足淬火要求的前提下,把模具与机床组合为一体,提供实现淬火过程的模压淬火工艺装备,在保证硬度和金相要求的同时,保持淬火工件的一致性,把淬火质量控制在最佳水平,并付诸工业应用,综合降低了淬火畸变。

Aiming at the distortion problem of quenching process, a kind of effective anti distortion method--press quenching technology and equipment was introduced. The distortion process was controlled and the distortion of quenched parts was reduced through controlling the action force, cycle and way of the machine, adjusting the structure and size of quench die, controlling the flow rate, flow state and flow direction of the quenehant. The results show that the anti distortion method and the final realization way which with generalization significant are established. On the basis of meeting the quenching technical requirements, the quenching die and the quenching machine are combined into a integration, the press quenching equipment which can realize quenching process is provided, besides meet the hardness and metallographic requirements and keep the quenched parts consistency, the quenching quality is controlled at optimal levels, it is put into industrial application, and the quenching dis

综述了齿轮激光淬火加工理论及方法的研究进展,分析了淬火硬化层形成机理以及与传统齿轮淬火硬化层形成机理的差异。通过对激光淬火加工的扫描方式、偏置量、扫描速度、入射角以及辅助冷却方式等工艺的分析,提出了相应的优化方案。对激光淬火和常规淬火后齿面的硬度、耐磨性、变形量、金相组织以及晶粒形状和分布进行了分析,认为齿轮激光淬火比常规淬火具备更优的机械性能。

This article summarized the research progress on the theories of laser quenching, and meanwhile analyzed the forma-tion mechanism of hardening layer, as well as its difference from the formation mechanism of the traditional gear quenching meth-ods. Through the analysis of scanning way, offset, scanning speed, angle of incidence and auxiliary cooling technology in the process of laser quenching, corresponding optimization schemes were put forward. By comparing the hardness of tooth surface, wear resistance, deformation, the microstructure and grain shape and distribution of the gears treated by laser quenching and normal quenching, it was concluded that the gear product of laser quenching had better mechanical performance than those prepared by the conventional quenching.

以连续辊式淬火机为研究对象,通过分析钢板淬火冷却过程传热机理,建立了钢板热传导数学模型。以Q690钢板为例,根据钢板性能指标要求、化学成分、板形要求,结合淬火机结构形式和技术数据,在求解钢板淬火过程温度场基础上,以淬火过程能耗最小为目标,计算了不同厚度钢板最优淬火机运行参数。

Mathematical model for heat conduction of steel plate was built on roller-type quenching machine based on analyzing heat transfer theory of steel plate quenching process .According to the performance requirements , chemical composition , plate-shaped requirements of Q690 steel plate, combined quenching machine structures and technical parameters , the running parameters of the quenching machine were calculated based on temperature field calculating for quenching .According to energy consumes minimizing during quenching , the optimal quenching parameters were obtained .

针对30CrMnSiA钢大型环形焊接件表面感应淬火工艺技术展开研究,分析了工艺流程、淬火温度、淬火介质、淬火方式以及感应器的制造特点,在相关试验的基础上获得了30CrMnSiA钢大型环形焊接件表面感应淬火的工艺参数。

This paper studied the large circular welding parts surface induction quenching technology for 30CrMnSiA steel,by analyzing the process,quenching temperature,quenching media,quenching method and manufacturing characteristic of inductor.Based on the correlative experiment,process parameters of the large circular welding parts surface induction quenching for 30CrMnSiA steel was obtained.

通过对亚共析钢T217钢分别采取淬火＋回火和淬火＋亚温淬火＋回火处理，探讨这两种工艺和亚温淬火的温度和保温时间对亚共析钢T217钢性能的影响，最后找出T217钢最佳亚温淬火热处理工艺。本文对于T217钢类似的钢种亚温淬火热处理工艺的制定具有一定的指导意义。

Aiming at an optimized heat treatment method, two different processes, namely quenching+tempering and quenching+subcritical quenching+tempering have been carried out to investigate the effect of the processing method, subcritical quenching temperature and holding time on the property of the T217 steel. Therefore, the present research enjoys a guiding significance in the heat treatment process of T217 steel and the like .