First kind refers to hardening heat treatment defects cracks, or quenching cracks.
第一类热处理缺陷指淬火裂纹。
Unfortunately, though flat tappets from China are cheap, their metallurgy is suspect-and the same goes for the quality of their machining, heat treatment and surface-hardening.
不幸的是尽管中国制造的平头挺杆物美价廉，但是其冶金技术遭到质疑，加工、热处理、表面硬化质量也遭质疑。
The procedures of heat treatment of steel include hardening tempering annealing and case hardening.
钢的热处理工序包括硬化、回火、退火和表面硬化。
There are three main operations in the heat treatment of steel: hardening, tempering and annealing.
钢的热处理操作主要有三种，即：淬火，回火和退火。
There are three main operations in the heat treatment of steel: hardening tempering and annealing.
钢的热处理操作主要有三种，即：淬火、回火和退火。
The characteristic and mechanism of laser transformation hardening, the technics of laser surface heat treatment were introduced.
主要介绍了激光相变硬化的特点及强化机理、激光表面相变硬化工艺。
The heat treatment process comprises annealing, hardening and tempering.
热处理过程包括：退火、淬火与回火。
Applications: annealing, hardening, forging, sintering, tempering of metals, heat treatment of glass and ceramics.
应用：退火，淬火，锻造，烧结，回火，玻璃和陶瓷的热处理。
The factors that influence the distortion of carburizing and hardening gears were listed and several measures to reduce heat treatment distortion were proposed.
根据硬齿面齿轮生产现状，分析了影响渗碳淬火齿轮畸变的因素，并提出了减小畸变的措施。
According to production practice, this paper summarizes the method to accurately define technical requirements on hardening part in the heat treatment.
根据生产实践，总结出了在热处理情况下，正确确定热处理零件的技术要求方法。
The present paper analyzed the reasons of heat treatment distortion of carburizing and hardening components and the formation process of the internal stress.
介绍了渗碳淬火零件热处理畸变的原因，分析了热处理内应力的形成过程。
If a low degree of hardness is satisfactory, through-hardening is probably the most desirable heat treatment process to be used because of its inexpensiveness.
要是对强度的要求较低，群体淬火有可能是最适当的热处理方法，由于它的花费不高。
Using infrared system the apparatus of non-touching at limited-area to monitor the hardening temperature at site is produced for high-frequency induction heat treatment.
利用红外测温原理，研制出高频热处理时的小目标非接触式在线动态监控淬火件温度的装置。
The working principle, structure and parameters design of plasma arc generator for heat treatment are described. Experiment has shown that it has good effect on partial surface hardening.
论述了用于金属材料表面热处理的等离子弧发生器的工作原理、结构特点和参数设计。试验证明这种发生器对材料的表面局部硬化非常有效。
The most commonly used heat treatments on metals are softening annealing, quenching, normalizing, surface hardening treatment, precipitation hardening.
最常见的热处理包括软化退火、淬火、正火、表面强硬化、淀积硬化。
The procedures of heat treatment of steel include hardening, tempering, annealing and case hardening.
钢的热处理工序包括硬化、回火、退火和表面硬化。
Therefore, the conventional heat treatment process after forging can be replaced by the new ausform hardening process, to save energy and improve production efficiency.
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。
Where required, some of the alloys also offer post form, heat treatment (age hardening) capabilities for even higher hardness and strength levels.
如果需要，一些合金还可以提供成形后热处理(老化硬化)至更高硬度和强度的能力。
The HV and XRD results show that the hardening of deposition was due to crystallization during heat-treatment at different temperatures.
对经不同温度下热处理的镀层进行了显微硬度和XRD分析和腐蚀磨损电化学行为研究。
The HV and XRD results show that the hardening of deposition was due to crystallization during heat-treatment at different temperatures.
对经不同温度下热处理的镀层进行了显微硬度和XRD分析和腐蚀磨损电化学行为研究。
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