Stainless steel fittings installation mainly has the following 9 notes:
1, Stainless steel lifting, can not be in direct contact with other metals, should be added pad wood or rubber sheet and other non-metallic materials.
2, Shelf tube cutting is not allowed to use ordinary grinding wheel cutting, stainless steel grinding wheel or plasma cutting should be used.
3, Stainless steel pipe and shelf pipe welding positioning welding should be carried out inside the argon protection.
4, Starting and closing arc, starting arc back welding, arc should be filled arc crater. Arc must be completed in the groove, prohibit the pipe, pipe fittings base surface arc and arc. If the arcing and arc collector found pores, cracks and other defects should be promptly handled clean.
5, Stainless steel pipe, fittings and stainless steel pipe, pipe fittings and non-stainless steel pipe, shelf pipe connections, welded butt joints before backing welding tube and the cavity should be filled with argon gas protection in order to conduct TIG welding.
6, Multi-channel multi-arc welding arc, Arc should be staggered away from each other.
7, Stainless steel tube continuous welding, the interlayer temperature does not exceed 60 ℃.
8, The pipe joints weld seam, after welding to be pickling and passivation.
9, Stainless steel tube hydrostatic test on water temperature and water quality have certain requirements, the water temperature of not less than 5 degrees Celsius; chloride content in water had to be greater than 25Pmm.
