Test results showed that the optimized pickling process could clean oxide skin of weld surface in effect and improve pitting-resistance property greatly.
研究结果表明，采用本文中的酸洗工艺可以有效清除不锈钢焊缝表面的氧化皮，并改善其耐点蚀性能。
2
This test piece shall be welded using the identical welding parameters as the original test and only weld metal impact test specimens shall be tested.
此试件应使用与原始试验相同的焊接参数进行焊接，并且仅对焊接金属冲击试样进行试验。
3
The purpose of weld guide bending test is to detect plasticity of welding joint, welding process and surface defects of materials.