| 不锈钢弯头清理须知 |
| 添加时间：2019/11/6 16:24:52 浏览次数： |
| 不锈钢弯头清理须知： Cleaning instructions for stainless steel elbow: 1、根据工件要求和表面状况采用碱洗、水溶性清洗剂、氯溶剂喷砂，喷丸等方法进行清理； 1. According to the requirements of the workpiece and the surface conditions, the alkaline cleaning, water-soluble cleaning agent, chlorine solvent sand blasting, shot blasting and other methods shall be used for cleaning; 2、对不锈钢弯头进行清理，一般不采用酸洗的方法进行清理。 2. Stainless steel elbow shall be cleaned without pickling. 正确的清理不锈钢弯头，能提高其使用的安全性能，延长其使用周期。 焊条使用时应保持干燥，钛钙型应经150℃干燥1小时，低氢型应经200-250℃干燥1小时（不能多次重复烘干，否则药皮容易开裂剥落），防止焊条药皮粘油及其它脏物，以免致使焊缝增加含碳量和影响焊件质量。 Proper cleaning of stainless steel elbow can improve its safety performance and prolong its service life The welding rod shall be kept dry when used. The titanium calcium type shall be dried at 150 ℃ for 1 hour, and the low hydrogen type shall be dried at 200-250 ℃ for 1 hour (repeated drying is not allowed, otherwise the coating is easy to crack and peel off), so as to prevent the coating from sticking oil and other dirt, so as not to increase the carbon content of the weld and affect the quality of the weldment. 弯头焊接时，受到重复加热析出碳化物，降低耐腐蚀性和力学性能。焊后硬化性较大，容易产生裂纹。若采用同类型的焊条焊接，必须进行300℃以上的预热和焊后700℃左右的缓冷处理。若焊件不能进行焊后热处理，则应选用铬镍不锈钢焊条。 When the elbow is welded, carbide is precipitated by repeated heating, which reduces the corrosion resistance and mechanical properties. It is easy to produce cracks because of its high hardenability after welding. If the same type of electrode is used for welding, preheating above 300 ℃ and slow cooling at 700 ℃ after welding must be carried out. If post weld heat treatment is not available for weldments, chromium nickel stainless steel electrodes shall be used. |
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