金属焊接-图10-(a)、(b)分别为低焊接热输入CE-4新型耐蚀钢筋焊接接头在达叻暴晒半年、1年后的腐蚀台阶；(c)、(d)分别为高焊接热输入CE-4新型耐蚀钢筋焊接接头在达叻暴晒半年、1年后的腐蚀台阶(焊接方法：焊条电弧焊，焊接电流165，175A， 焊接电压25V，焊接速度210，258mn/min, 焊接线能量12.5,9.6 kJ/cm)

可以看出两种钢筋焊接接头在两种暴晒周期下的焊缝均与母材平齐，并且1年后高焊接热输入CE-4焊缝略高于母材，所有焊接接头的腐蚀台阶均满足耐蚀性要求。这说明设计的焊接热输入、焊材耐蚀性与母材适用于CE-4钢筋焊接接头的使用。

Metal welding - Fig. 10 - (a) and (b) respectively show the corrosion steps of CE-4 new corrosion-resistant steel welded joints with low welding heat input after exposure to sunlight for half a year and one year(c) And (d) are corrosion steps of CE-4 new corrosion-resistant steel welded joints with high welding heat input after exposure for half a year and one year (welding method: shielded metal arc welding, welding current 165，175A, welding voltage 25V, welding speed 210，258mn/min, welding line energy 12.5,9.6 kJ/cm)

It can be seen that the welds of the two kinds of steel welded joints are flush with the base metal under two exposure cycles, and the high welding heat input CE-4 weld is slightly higher than the base metal after one year, and the corrosion steps of all welded joints meet the corrosion resistance requirements. It shows that the designed welding heat input, corrosion resistance of welding material and base metal are suitable for CE-4 steel bar welding joint.