Monitoring of rod stud what is the standard?

1, conform to the provisions of the existing national standards and have qualified certificate. Quality of carbon steel using E43 type electrode, the electrode should comply with the provisions of the latest national standard, never use a medicine skin peeling rust or be affected with damp be affected with damp, welding core electrode, and the welding wire with rust. Weld size as

1, conform to the provisions of the current national standard and have qualified certificate. Quality of carbon steel using E43 type electrode, the electrode should comply with the provisions of the latest national standard, never use a medicine skin peeling rust or be affected with damp be affected with damp, welding core electrode, and the welding wire with rust. Welding size comply with the design requirements, the surface of the weld metal welding wave even, should not affect the strength of the cracks, slag inclusion, flash, burn through, not amalgamation, arc pit and needle hole, and no defects such as fold and interrupt. Weld zone depth is not allowed to bite meat more than 0. 5 mm, the cumulative length shall not exceed 10% of the weld length. Weld width less than 20 mm, welding high Angle more than 1. 5毫米~ 2。 5 mm, height of fillet weld Angle should be 6 mm to 8 mm, welding angular size does not allow less than design size.

2, anticorrosive processing using hot dip zinc, in front of the anticorrosive processing, dealing with steel members for effective descaling, hot-dip zinc thickness not less than 85 um, zinc layer should be uniform, with copper sulfate solution erosion test, more than 4 times not iron, the zinc layer should be combined with metal body strong, and the hammer test, the zinc layer stripping, not bump. Leaching zinc should be done after the passivation, and 48 h salt spray test. Every 100 m pole, its axis measurement of straightness error is less than 0. 5‰ , stem length linear error is less than 1 & permil; 。