There exist problems of cold-working hardening and hydrogen-brittle in the cold-drawing process for seamless steel tube, responsible for the cracking in the steel tube.
在无缝钢管的冷拔过程中，存在着冷作硬化和氢脆现象，它们是造成钢管开裂的主要原因。
Deep drawn parts offer the ability to pre-plate the internal working faces with gold, while also work-polishing and hardening the wall to optimize product lifetime.
深冲部件提供了对内部工作面镀金的能力，还可以在工作时抛光和硬化壳壁以延长产品寿命。
The paper introduced the working principle of the lead hardening temperature measuring and control system for the steel wire base on the fuzzy suitable PID control.
阐述了基于模糊自适应PID控制的钢丝绳用钢丝铅浴淬火温度测控系统的工作原理。
The reasons of ground hardening in a large area around working areas in hazardous waste treatment plants were analyzed.
分析危险废物处理厂生产区周围进行大面积地面硬化的原因，提出加大厂区绿化的措施。
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。
This paper introduces the structural features, parameters the hardening of its working parts of a long service life bending-die.
介绍了一种新型高寿命弯曲模具的结构特点，结构参数和工件零件的强化工艺。
PEP - II of the gear pump shaft, and the body USES hardening craft, can obtain more long working life.
PEP-II泵的齿轮与轴共为一体，采用通体淬硬工艺，可获得更长的工作寿命。
The principal problems with respect to roll working life are cracking at the surface of roll for hot-rolling and that effective zone of quench-hardening of roll for cold-rolling is too narrow.
热轧工作辊的裂纹损坏和冷轧工作辊有效淬硬层过浅是两大突出问题。
The principal problems with respect to roll working life are cracking at the surface of roll for hot-rolling and that effective zone of quench-hardening of roll for cold-rolling is too narrow.
热轧工作辊的裂纹损坏和冷轧工作辊有效淬硬层过浅是两大突出问题。
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