This paper atudles two lmpartaut proLlems in the`epaitiug of the cracks on high presauare ateam turbine casings by means of electric are welding, namuly, the preheating of the workiece before welding and the aubsequent heat treatment, and also introduces the correspunding methods adopted:(1)Using induction heating method to bring the temperature of the work piece to the desired vaules without producing residual deformation, (2)By measn of follow-up tempering on the welded beade, not only to keep the mechanieal p...
本文对高压汽轮机汽缸裂纹补焊技术中存在的两个主要问题——预热和热处理问题，分别提出了现实可行的方法，即：1。无变形工频感应预热的方法。用这种方法在预热温度范围内加热，可以使经过精加工的汽缸不产生残余变形。2。跟踪回火的方法。用这种方法处理每一焊道，不但可以使补焊区的金属性能和残余应力与一般回火处理基本相同，而且不致因回火处理而增大工件的变形量。
This paper atudles two lmpartaut proLlems in the`epaitiug of the cracks on high presauare ateam turbine casings by means of electric are welding, namuly, the preheating of the workiece before welding and the aubsequent heat treatment, and also introduces the correspunding methods adopted:(1)Using induction heat ing method to bring the temperature of the work piece to the desired vaules without producing residual deformation, (2)By measn of follow-up tempering on the welded beade, not only to keep the...
本文对高压汽轮机汽缸裂纹补焊技术中存在的两个主要问题——预热和热处理问题，分别提出了现实可行的方法，即：1。无变形工频感应预热的方法。用这种方法在预热温度范围内加热，可以使经过精加工的汽缸不产生残余变形。2。跟踪回火的方法。用这种方法处理每一焊道，不但可以使补焊区的金属性能和残余应力与一般回火处理基本相同，而且不致因回火处理而增大工件的变形量。
Simultaneous heating and quenching with high power medium frequency equipment for parts of long shaft, adopting special induction coil and adjustable induction coil and self tempering, will improve on medium frequency quenching quality of the parts and raise obviously productivity, thereby cause the enterprise to obtain fine product quality, high productivity and Low production cost.
对长轴类零件采用大功率中频机同时加热表面淬火的方法，配以专用感应圈和伸缩感应圈的应用和自回火的应用，结果表明，可提高零件中频表面淬火质量，并大大提高生产效率，从而使企业在生产中取得高产品质量，高生产效率和低生产成本的极佳效果。
Introduction to the technical properties and design methods of induction heating, quenching and tempering treatment.
介绍了PC钢棒的技术性能要求，着重讨论了PC钢棒感应加热调质处理工艺参数的设计方法。
Induction hardening and tempering, rapid surface induction hardening;
感应加热调质，快速表层感应加热淬火；
Induction Hardening and Tempering of Large Main - rail
大型铸钢主轨中频淬火回火工艺
The investigation was conducted on the technique of intercritical hardening by medium frequency induction and self tempering for the high strength bolts.
对高强度接头螺栓进行了中频加热感应亚温淬火及自回火工艺研究。
Study on Technique of Intercritical Hardening by Medium Frequency Induction and Self Tempering for High Strength Bolts
高强度接头螺栓感应亚温淬火及自回火工艺的研究
The constructure steel specimens hardened by high power induction pulse process give high hardness, high fatigue limit and high tempering resistance.
结构钢经大功率感应脉冲淬火后，可获得高硬度、高的疲劳极限和高的回火抗力。
The high temperature tempering mechanism due to quich induction heating has been analysed.
分析了快速调质工艺的高温回火机制。
The results shown that the quich induction quenching and high temperature tempering by using series inductors can obviously increase the strength and toughness and tensile fatigue servies life of the oil pump arm, remarkably enhance production efficiency and considerably economize electrical power.
结果表明：串联感应加热快速调质能明显提高抽油杆的强韧性和拉伸疲劳抗力，显著地提高生产效率并大量节约能源。
The microstructures and properties of axles quenched after wedge cross rolling and high temperature tempered by induction tempering are investigated.
研究了轴类零件楔横轧后，利用轧后余热淬火和感应加热快速高温回火后的显微组织及主要性能；
The Overall Analysis of Induction Heating for Quenching and Tempering of 18U Support Steel Parameter selecting for adjusting quality process and production line design of support steel
感应加热对18U型支护钢进行调质处理的综合分析支护钢调质生产线设计中的参数选择
Heat treatment technics such as tempering, vibration aging, induction quenching and so on adopted on key parts like bed enable more stable accuracy and longer working life.
床身等关键件的回火、震动时效、超音频淬火等热处理工艺，使机床精度更稳定，使用寿命更长（建议在顶部搜索“刨床、插床”，以便查询更多刨床、插床厂家。）
The application, influence factors and process control of four kinds of heat treatment methods including tempering, carburizing, nitriding and induction quenching are analyzed.
对齿轮的调质、渗碳淬火、渗氮及感应淬火四大热处理工艺的应用范围、影响因素及工艺控制要点进行了分析。
The connection between low temperature tempering parameters and hardness of the cold rolling work rollers after 50/250 Hz double frequency induction quenching is introduced A strong negative linear correlativity between the tempering parameters and hardness is shown by regressive equation computation
介绍冷轧工作辊经50/250Hz双频感应淬火后低温回火工艺与硬度的关系，揭示了二者之间的规律，并用回归方程计算方法阐明回火工艺与硬度之间存在强负线性相关关系
After medium frequency induction heated, bolts were quenched into water for 54~75 seconds, then themself tempered by remnant heat after quenching to replace low temperature tempering in the former process, which increased productivity and decreased energy consumption.
螺栓感应加热后在水中停留时间控制在5.40～7.50s范围内，利用淬火余热进行回火，取消原工艺中的低温回火过程，提高了生产率并减少了能源消耗。
The mechanical properties of oil hardening and tempering spring wire were introducer in this paper, The process and system constitutes for spring wire with induction heating were proposed, The operation principle of this system was also discussed.
介绍了油回火弹簧钢丝的力学性能，给出了油回火弹簧钢丝感应加热生产工艺流程及系统组成，简述了系统各部分的技术功能及特点。
Study on Technology and Equipment of Quenching and Tempering by Induction Heating of the Caterpiller Plate
履带板感应加热调质工艺及设备研究