1. Construction lofting, cutting and laser cutting should be carried out first in the manufacture of steel structures. During construction lofting and cutting, the welding capacity and laser cutting during fabrication and assembly should be reserved according to the technical regulations. Edge planing and milling the remaining amount of fair machining. Before oxygen cutting, the rust and waste on the surface of the laser cutting area of ​​the stainless steel sheet should be cleaned up neatly, and the slag and splashes should be eliminated after oxygen cutting;

2. The surface of the corrected stainless steel sheet should not have prominent spherical surface or damage, and the depth of scratches should not exceed 0.5mm. For parts cut by oxygen cutting or mechanical equipment, when edge production and processing must be carried out, the drilling amount should not be less than 2.0mm

3. When making holes, the precision and allowable error of the anchor bolt holes should meet the requirements. When the allowable error of the anchor bolt holes exceeds the standard requirements, it is not possible to use steel blocks to block them. After the corresponding welding wire is repaired, holes shall be made again; before assembly, the parts shall be inspected up to the standard, and the rust, burrs, stains, wind and snow on the joint surface and within the range of 30mm--50mm on each side along the edge of the weld shall be thoroughly Clean and tidy, plate only. The patchwork of aluminum profiles should be carried out before assembly; the assembly of components should be carried out after the assembly of the components. After the welding is corrected, the assembly sequence should be based on the structural form, the welding method and the welding sequence and other elements are clear. When using a fixture for assembly, the original material should not be damaged when the fixture is disassembled; the residual welding slag should be sharpened and leveled, and the pressing surface should be in contact with more than 75% of the total area;

4. When carrying out welding, the construction enterprise shall carry out welding process appraisal for the stainless steel plates, welding raw materials, welding methods, post-weld heat treatment, etc. used for the first time in the steel structure, and shall clarify the welding process according to the evaluation report; , Do not use the welding wire with core peeling or core corrosion, the flux that has been solidified by moisture reversion and the welded shell that has been melted. Welding rods and studs should be used to eliminate oil stains and rust. When welding, the welder should follow the welding process. It is not allowed to arbitrarily weld and start the arc on the raw material outside the weld. The corner of the welding corner should continue to be welded around the corner. When a crack occurs in the welding corner, the welder cannot deal with it by himself. The reason should be found out and the repair process can be determined before it can be solved. The frequency of refurbishment at the same position of the weld shall not exceed 2 times. After welding, the welder should remove the slag on the surface of the weld and the splashes on both sides, check the appearance quality of the weld, and mark the welder's anti-counterfeiting mark on the weld and position of the processing specification after the inspection is up to standard;

5. When using the grinding wheel to grind and polish the friction surface, the grinding and polishing range should not be less than 4 times the diameter of the anchor bolt. The grinding and polishing angle should be vertical to the bearing force of the component. The processed friction surface should be Before leaving the factory, the anti-movement index test should be carried out in batches. During the whole process of logistics and transportation, the friction surface of the sample should not be damaged, and the solved friction surface should not have burrs, burrs, welding slag or damage;

6. Anti-rust treatment should be carried out on the steel structure before spraying. The spraying should be uniform and there should be no significant wrinkles. Loss of gloss and good adhesion. After the spraying is completed, the original serial number of the component should be marked on the component. Large and medium-sized components The net weight, the specific location of the core and the precise positioning mark should be marked.