Lh700 Spiral Welded Steel Pipe Making Machine Steel Tube Mill Line

Spiral welded pipe unit LH-700:

According to the calculated forming Angle, adjust the forming Angle of the 1 ~ 7# forming roll and the welding pad roll correctly, then adjust the upper surface of the welding pad roll to the same elevation as the lower surface of the strip steel, put the sample cylinder on this height as the reference, and press the 1 ~ 7# rolls against the sample cylinder, where the center line of roll 6 is consistent with the center line of the sample cylinder and the center line of roll 2 (the center line of the rear axle), and make a record. After taking out the sample drum, adjust the axial position of each roll according to the strip feed direction, adjust the vertical roller of the molding machine to both sides of the tight belt, start the delivery machine to feed the plate inward, adjust the position of rolls 1 ~ 7 again according to the actual situation, until the qualified steel pipe is rolled out, so that the tensioning device of the external control roll can be locked.

Helical welding pipe unit LH-700 Notes:

a. When adjusting the external control roll, first loosen the pull rod and then lift the external control roll, so as to avoid accidents, and then tighten the pull rod.

The lifting of b. 2# arm shall be in accordance with the requirements of the drawing and shall not exceed the lifting range to avoid accidents.

c. Each forming roll in each change of specification, should be checked, add lubricating oil in order to prolong the life of the roller, so that the machine in good working condition.

d. When each specification is adjusted, the position of each roll should be recorded for future reference.

Secondly, spiral welding pipe unit LH-700 inside and outside welding:

The inner and outer welding operators operate the welding head adjustment device to align the inner and outer welding heads with the welding position, and determine the appropriate current for continuous welding according to the forming speed.

Note:

During welding, pay attention to adjust the position of welding wire and weld and the size of current, so as to avoid burning through, porosity and other defects.

Hebei Yongyue Electromechanical Equipment Co., Ltd. is a professional high-end cold-bending equipment manufacturer with an annual output of 100 sets of equipment, integrating independent research , production, development, sales and service.