2014年11月10日星期一

Note the use of titanium wire

1, construction workers and welders should wear clean white fine gauze gloves (non-wearing cotton gloves).
2, the weld area treated and non-contact touch iron items.
3, welding work as much as possible in the room, the ambient wind speed should ≤0.5m / s, to avoid influence by drafts.
4, should be as short arc welding using welding, using a small welding heat input, the angle between the nozzle and the weldment maintain 70 to 80 degrees.
5, when the takeover tack welding, butt gap is generally about 0.5mm.
6, each weld seam should be possible once completed, must be connected to the welding seam, before welding the interface should be clean, welding meat lap length of 10 ~ 15mm.
7, welding, torch should not swing around, the end can not be removed from the wire melting gas reserve.
8, arc welding should advance aspirated, not lifted immediately when the torch arc, gas should be delayed until the temperature drops below 250 ℃.
9, gas mask and dragged away from the torch should be the shortest better, with the gap between the wall and strive to minimize contact. When the tube butt welding, forming side welding in order to achieve the requirements of the welding carried out twice: once for the back cover welding (weld when you can not back fill material) and the other for forming welding. When the multi-layer welding, must wait before a weld completely cooled, then the next weld bead.

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