Galvanized pipe fittings of the nine major production points
1. Galvanized pipe oiling marking: In the inspection of qualified galvanized pipe oiling operation to prevent corrosion, and in accordance with the requirements of customers marking.
2. galvanized pipe flattening milling edge: the use of anvil machine will be the original curled steel plate leveling, and then through the milling machine on both sides of the steel plate for double-sided milling, to achieve the required plate width, board parallelism and slope Mouth shape.
3. galvanized pipe shear molding: the steel along the galvanized outside the curled into a tubular.
4. galvanized pipe butt welding: double-sided submerged arc welding technology for pre-welding, welding, external welding. The welded fittings are cut into gauge lengths using a plasma scale.
5. galvanized pipe visual inspection: by the professional and technical personnel to check some of the basic parameters.
6. galvanized pipe ultrasonic testing: both inside and outside the weld and weld on both sides of the base metal 100% inspection.
7. Galvanized tube X-ray inspection: 100% of the internal and external welds X-ray industrial television inspection, the use of image processing system to ensure the sensitivity of testing.
8. Galvanized tube pressure test: the hydraulic pressure testing machine on the root of the pipe to ensure that the pipe to meet the standard requirements of the test pressure.
9. galvanized pipe inverted flat head: the inspection will be qualified after the galvanized pipe pipe end processing, to achieve the required pipe end groove size.