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普通角钢主要指的直接热轧出来没有经过任何加工的角钢。角钢表面质量在标准中有规定，一般要求不得存在使用上有害的缺陷， 如结疤、分层、裂缝等。角钢属建造用碳素结构钢，是简单断面的型钢钢材，主要用于金属构件及厂房的框架等。 在使用中要求有较好的可焊性、塑性变形性能及一定的机械强度。生产角钢的原料钢坯为低碳方钢坯，成品角钢为热轧成形、 正火或热轧状态交货。镀锌角钢分为热镀锌角钢和冷镀锌角钢。热镀锌角钢也叫热浸镀锌角钢或热浸锌角钢。 冷镀锌涂料主要通过电化学原理保证锌粉与钢材的充分接触，产生电极电位差来进行防腐。热镀锌角钢具有表面光泽，锌层均匀， 无漏镀，无滴溜，附着力强，抗腐蚀能力强的特性；镀锌层形成一种特别的冶金结构，这种结构能承受在运送及使用时受到机械损伤; 锌层与钢材间是冶金结合，成为钢表面的一部份，因此镀层的持久性较为可靠;镀件的每一部分都能镀上锌， 即使在凹陷处、尖角及隐藏处都能受到全面保护。 Ordinary corner steel mainly refers to the direct hot rolled out of the corner steel without any processing. Angle steel surface quality in the standard, generally requires that there should not be any harmful defects, such as scar, stratification, cracks, etc. Angle steel is a carbon structure steel for construction, is a simple section of the type of steel steel, mainly used for metal components and plant framework.In use requires good solder, plastic deformation performance and certain mechanical strength. The raw material billet of producing angle steel is low-carbon square billet, and the finished angle steel is hot rolled formed, hot or hot rolled state delivery.Galvanized angle steel is divided into hot galvanized angle steel and cold galvanized angle steel. Hot galvanized angle steel is also called hot dip galvanized angle steel or hot dip galvanized angle steel. Cold galvanized coating mainly ensures the full contact between zinc powder and steel through the electrochemical principle, and produces the electrode potential difference to prevent corrosion.Hot galvanized angle steel has surface luster, uniform zinc layer, no leakage plating, no slip, strong adhesion, strong corrosion resistance; galvanized layer forms a special metallurgical structure that can withstand mechanical damage during transportation and use; the zinc layer and steel are metallurgical part of the steel surface, so the durability of the coating is reliable; every part of the plating can be galvanized and can be fully protected even in depressions, sharp angles and hiding.
Q235B电力工程角钢
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