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4 6mmV型坡口板状对接仰焊(WS2—4)4.1 焊前准备试件为16Mn,16MnR钢板,焊接材料采用H08Mn2Si焊丝,直径为φ2.5mm.试件采用V形坡口,坡口角度为60°,无钝边(图23).焊接电源为德国GL300直流焊机,正极性接法.施焊前先将试件坡口上下边缘约为10～15mm内,用磨光机把油、水、锈及氧化皮等杂物清除干净,裸露出金属光泽,注意不要把坡口边缘破坏,不许修磨钝边.将焊丝剪成600mm长并校直,用细砂纸将焊丝表面的油、锈等杂物清除干净,裸露出金属光泽.
4 6mmV beveled plate butt welding (WS2-4) 4.1 Preparation of welding specimens for the 16Mn, 16MnR steel, welding materials using H08Mn2Si wire diameter of φ2.5mm. V-shaped specimen using the bevel, bevel angle 60 °, no blunt edge (Figure 23). Welding power supply for the German GL300 DC welding machine, the positive connection. Before welding the upper and lower edges of the specimen about 10 ~ 15mm, with a grinder oil , Water, rust and oxide and other debris to remove clean, bare metal luster, be careful not to damage the bevel edge, grinding is not allowed to blunt edge will be cut into 600mm wire length and straightened, with a fine sandpaper wire surface oil , Rust and other debris removed clean, bare metal luster.