Galvanized steel pipe connection mode: thread, welding.
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Galvanized steel pipe connection mode: thread, welding.
Roller Groove Connection
(i) Cracking of weld seam of rolling groove
1, the pipe mouth pressure groove part of the inner wall welding ribs, reduce the roller groove resistance.
2, adjust the steel pipe and groove equipment axis, and requirements of steel pipe and groove equipment level.
3, adjust the pressure groove speed, pressure groove molding length can not exceed the rules, uniform, slow application force.
(ii) Fracture of the grooved steel pipe
1, the steel pipe mouth pressure groove part of the inner wall welding ribs, reduce the roller groove resistance.
2. Adjust the axis of steel pipe and groove equipment, and require the level of steel pipe and barrel equipment.
3, adjust the pressure groove speed, pressure groove speed can not exceed the specified, uniform, slow application force.
4. Check the width and model of the support roll and the pressure roller of the rolling groove equipment, whether there are two roll sizes do not match and result in occlusal phenomenon.
5. Use vernier caliper to check whether the trench of steel pipe is stipulated.
(c) The groove of the Rolling Groove machine shall meet the following requirements
1, Pipe end to Groove section of the surface should be flat without concave-convex, no roll marks.
2, Groove Center should be concentric with the pipe wall, groove width, depth should meet the requirements, and check the card hoop model is correct.
3, the rubber seals on the application of lubricants and check the rubber seal ring is damaged, lubricants shall not be used oil lubricants.
Welded connection
1, galvanized steel pipe mouth After docking is not in a straight line and the problem of the steel pipe oblique, it is recommended that the pipe head cut off a small section of the child before processing.
2, galvanized steel pipe mouth After the butt of two pipe mouth butt joint is not strict phenomenon, resulting in welded joints thick uneven, as well as the pipe due to its own reasons or transport bump, resulting in the nozzle oval, it is recommended that the pipe head cut off a small section of the child before processing.
3, Galvanized steel pipe mouth butt, pipe mouth part of the hole:
4, welding due to technical reasons.
5, the presence of zinc in the mouth of the tumor, resulting in welding difficulties and sand hole problems, zinc tumor too large, too many tubes for simple zinc removal treatment.
Chese Type Connection
1, the silk buckle is disorderly to buckle: the tube hoop and the silk buckle cannot completely contact, loosen, cut off the loose buckle part, installs the vehicle silk again.
2, steel wire buckle and pipe hoop wire buckle does not match, can not be connected, should be replaced by the tube hoop or adjust the equipment of the car wire.
3, Steel pipe after the leak printing: measuring the wall thickness of steel pipe to achieve the standard thickness of the wire pipe requirements
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