钢

In February, 2004, Chongqing Sinosteel Charging Co., Ltd which has been in wested by sinosteel Investment Group.was formally established,marking a starting point of the engagement in the iron and steel industry

2004年2月中钢投资公司投资成立中钢炉料有限责任公司，标志着从事钢铁原材料行业的伊始

Approval;Approved organizations;Bend testing;Butt welding;Definition;Definitions;Design;Dimensions;Electric welding;Flash welding;Inspection;Materials;Metal sections;Order indications;Performance tests;Permanent ways;Profile;Quality;Rail joints;Rails;Railway applications;Railway rails;Railways;Resistance welding;Sections;Specification;Steel welding;Steels;Suitability;Testing;Tracks;Travel ways;Vignol rail;Weldability;Welded joints;Welding;Welding engineering;Welding equipment;Welding processes;Weldings

中文主题词认可；受批准组织；弯曲测试；对接焊；定义；设计；尺寸；电焊；闪光焊；检验；材料；金属型材；顺序示度；性能试验；永存性铁路；轮廓；质量；钢轨接头；钢轨；铁路设施；铁路钢轨；铁路；电阻焊接；型材；规范；钢件焊接；钢；适宜性；测试；轨道；旅行线路；丁字形铁轨；可焊性；焊接接头；焊接；焊接工程；焊接设备；焊接工艺；焊接法

The mechanical factors invistigated include frequency, stress ratio, applied load waveshape, single overloading and periodic overloading, the environmental factors include temperature, polarization potential, medium type and pH value, and the metallogicall factor is heat treatment technology.

本文研究了GC-4钢的CF裂纹扩展规律，探讨了力学因素（包括频率，应力比，载荷波形和单次超载及周期超载），环境因素（包括温度，极化电位，介质种类和PH值），及冶金因素对GC-4钢在3.5％NaCl中性溶液中或蒸馏水中CFCG的影响，并结合断口形貌和理论分析，得到了大量的试验研究结论。

Plug Valve should be in accordance with the six degrees of freedom of the API specifications Valve should be nonlubricated, flexible, two-seater, and gradually abolished, plug-and-play able to handle two-way blocking; steel body, chrome-plated trim and gradually plug steel or ductile iron, chrome or nickel plating to support the upper reaches of the lower trunnions , iron and steel, ductile iron sealed with rubber seal alone.

插头 阀应按照六自由度的API规格阀应nonlubricated ，有弹性，双座位，逐渐取消，即插即用型能够处理双向堵；钢体，镀铬的内饰，并逐渐插件的钢或球墨铸铁，镀铬或镀镍，支持上游低trunnions ，钢铁球墨铸铁密封单与橡胶密封件。

The surface on the steel bridge is easy to damage early than estimate years.The distress types in steel bridge surfacings include permanent deformation,cracking,formation of mounds and disintegration.The text analyses the vertical section strain under tire location by use of the finite element method and calculates the influence of stiffness variance of translate bonding layer on the surfacings of steel bridges.

中文摘要：钢桥面沥青铺装层在使用一段时间后容易出现开裂、脱层以及车辙等早期破坏现象，采用空间有限元分析方法对车轮荷载位置处的截面竖向应变进行分析，计算了过渡粘结层刚度变化时对钢桥面铺装层受力变化的影响，计算结果说明对传统的弹性层状计算理论的假定与实际受力情况存在较大差异。

Additionally, the sulphides and oxide inclusions in CH13 steel and RE inclusions in MCH13 steel can also act as the nuclei of cracks.

采用同样的方法，发现CH13钢的硫化物、氧化物以及MCH13钢中的球形稀土化合物都可作为裂纹源。

The effect of subzero treatment temperature on the fatigue property of the ultra-high strength steel B318 was studied.

研究了冷处理温度对超高强度钢 B318疲劳性能的影响，结果表明，在相同条件下，冷处理温度对该钢的疲劳性能影响很大。

A layer of strip steel was found abrasion-welded to the surface of the spalled fragment and a 0.06mm thin layer of untempered martensitic structure was observed on the surface of the roll just beneath the welded strip.

在剥落块的表面上粘结着带钢，在带钢下的轧辊表面上观察到一层厚度约0.06mm未经回火的马氏体组织，此层下面还有一个具有低硬度的回火马氏体区域，晶间显微裂纹就从此两区域之间发生，然后垂直地向里向外扩展。

Velan is one of the world's leading manufacturers of industrial valves, supplying forged and cast steel gate, globe, check, ball, butterfly, knife gate and engineered severe service valves for critical applications in power, chemical and petrochemical, oil and gas, pulp and paper, mining, marine, cryogenic and general construction industries.

Velan是世界工业阀门行业主要的制造商之一，提供锻钢和铸钢闸阀、截止阀、止回阀、球阀、蝶阀、刀闸阀和适用于关键部位的工作强度繁重的工程阀门，适用于电力、化工和石化、油气、纸浆和造纸、矿业、船舶、低温和普通建筑行业。

And Steel Association in a survey with the departments concerned, the majority of steel mills and traders are denied the "anti-mining" behavior, and through the mill ore traders to buy stock based on concerns about the channels, there is no issue of iron ore to steel Society proof of the purchase price.

而中钢协与有关部门的调查显示，大部分钢厂与贸易商均否认&倒矿&行为，而通过贸易商购矿的钢厂出于对进货渠道的担忧，没有向钢协出具铁矿石进货价格证明。

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。