钢化

By serial instrumentation impact experiments at different temperature,energy changement condition and the fracture SEM at different impact fracture stages of the pipeline steel used under special environment are studied.

采用系列温度仪器化冲击实验的方法，对在特殊环境下使用的管线钢冲击断裂各阶段的能量变化情况及冲击断口的SEM形貌进行了研究。

Grain boundary segregations of microelements Sn arc As in U74 heavy-rail steel after austeniized at 1200℃ then cooled at different colling rates were determined by means of Auger electron spectrum and X-ray surface analysis.

用Auger谱仪和X射线面扫描探测了U_(74)重轨钢在加热到1200℃奥氏体化以后再以不同冷速进行冷却的条件下微量元素Sn，As的偏聚情况。

Correspondently, the fatigue strength of B-free bainitic steel is higher than that of B-alloyed bainitic steel.

以此结果，提出了提高设计贝氏体钢的屈服强度的合金化途径与工艺途径的理论依据。

The transformation of C-Si-Mn TRIP steel during continuous cooling in two static conditions was studied by dilatometry.

利用热膨胀法研究了C-Si-Mn系TRIP钢在两种静态条件下连续冷却转变时的相变规律，分析了冷却速度、奥氏体化工艺对组织的影响。

The transformation of C-Si-Mn TRIP steel during continuous cooling in two static conditions was studied by dilatometry. The effects of cooling rate and austenitizing process on the microstructure were analyzed.

利用热膨胀法研究了C-Si-Mn系TRIP钢在两种静态条件下连续冷却转变时的相变规律，分析了冷却速度、奥氏体化工艺对组织的影响。

Both the end drill machine and thread rolling machine are computerized. The establishment of the plate factory in July 2005 make the drawbench, nail-making, heat treatment, and plate connected. We would strive for our goal and manufacture special deformed parts for autocar, motorcycle, manual tool, and steel structure.

全电脑控制钻尾机、搓牙机，在2005年7月建立电镀厂，使我厂的拉丝，制钉、热处理、电镀一贯化作业，直至研发为目标而努力，精心为汽车、摩托车、手工具、钢结构业打造特殊异形件。

This paper introduces the fundamental theory and technology feasibility of using molybdic oxide instead of molybdenum iron and vanadium slag instead of vanadium iron to smelt ZG20CrMoV steel.

介绍了采用氧化钼代替钼铁、钒渣代替钒铁直接合金化冶炼ZG2 0CrMoV钢的基本理论及工艺技术。

In this paper, we systematically study the surface nanocrystalline treatment process and low temperature nitriding process of steels.

本文主要对纯铁和45钢交流电表面纳米化处理以及预处理后的低温渗氮工艺进行了系统研究。

It also describes the application of gas-soft nitriding technology to cold extrusion dies and th...

并且介绍了气体软氮化工艺在冷挤压模具上的应用，和国内研制的新型冷挤压模具钢65Cr4W3Mo2VNb及6W6Mo5Cr4V的试用情况。

Compared with the common galvanized-steel , the GA steels has better weldability , paintability and resistance to scratching .

与普通热镀锌钢板相比，高强钢合金化热镀锌板具有优异的焊接性，涂装性及涂装后的漆膜耐砂砾冲击性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。