冷拉型钢相对普通钢材来说各方面的性能已经有了很大的改善，但是在长期使用中依然会出现一些缺陷，因为它的表面含有一定的钢铁成分，长期暴露在空气中的话会因为氧化而受到不同程度的侵蚀。
Compared with ordinary steel, cold-drawn section steel has greatly improved its performance in various aspects, but some defects will still appear in long-term use, because its surface contains a certain amount of steel components, and long-term exposure to air will cause Oxidation and different degrees of erosion.
冷拉型钢自身的抗冲击能力虽然很高，但产品表层也会存在一些锈渍，所以为了提高冷拉型钢的产品品质，延长它的使用寿命，应该要考虑到这些因素，对其采用磷化的措施。具体的操作方法是将铝材料或镀锌成分涂抹在冷拉型钢的缺陷处，并使得整件在磷化的过程中迅速的转换成化学膜，从而形成磷化膜。与此同时，冷拉型钢的磷化处理属于化学与电化学的一种反应，能够在原有的基础上提高金属物的密度，使得冷拉型钢有效的抵制被腐蚀的现象。
Although the cold-drawn steel's own impact resistance is very high, there will also be some rust stains on the surface of the product. Therefore, in order to improve the product quality of cold-drawn steel and extend its service life, these factors should be taken into consideration and phosphating Measures. The specific operation method is to apply an aluminum material or a galvanized component to the defects of the cold-drawn steel, and make the whole piece be quickly converted into a chemical film during the phosphating process, thereby forming a phosphating film. At the same time, the phosphating treatment of cold-drawn steel is a reaction between chemistry and electrochemistry, which can increase the density of metal objects on the original basis, so that cold-drawn steel can effectively resist the phenomenon of corrosion.
冷拉型钢在冷拔之前，应该要设置挡板进行防护，如果没有准备挡板也应该让卷扬机和冷拉方向保持90度，并且要使用封闭式的导向滑轮。在操作的时候，工作人员必须站在防护挡板的后方，防止冷拉时产生的碎屑蹦出。另外还要对设备进行全面的检查，如果发现滑动或者是其他异常问题的时候,先停止机器的操作，放开钢筋之后才能让专业的人员进去检查，避免事故的发生。
Before the cold-drawn section steel is cold-drawn, a baffle should be provided for protection. If the baffle is not prepared, the hoist and the cold-drawing direction should be maintained at 90 degrees, and a closed guide pulley should be used. During operation, the staff must stand behind the protective baffle to prevent the debris generated during cold drawing from jumping out. In addition, a comprehensive inspection of the equipment should be carried out. If sliding or other abnormal problems are found, stop the operation of the machine first, and then let the professional staff go in to check after the steel bars are released to avoid accidents.
