On-line supper spiral accumulator

Super spiral accumulator is famous for large storage, high in and out speed and maintaining good plate surface quality,as well as advanced equipment in obtaining ideal pipe surface and large capacity

On-line advanced straight edge case forming process

The straight edge case forming can restrict the plate edges to a smooth ,natural moving track.and the quality of formed pipe is improved,the edges are well controlled,and pipes have highly accurate dimensions and better surface quality, and retain the mechanical properties of raw material are primely retained

On-line weld seam annealing

ERW 610 production line is equipped with advanced high frequency solid state welding technology and machine, this machine can switch between high frequency and medium frequency,the induction coil  to work under gas protection the weld seam is high qualified and smooth, the pipe can obtain high strength , the mechanical property of weld seam is almost same with the parent metal

On line SXF J610 digital rotatory cutting machine

The most advantaged homemade digital flying cutting machine, this machine is equipped with high accuracy, fast microcoputer system,can accurately fix the length,get perfect cross sections, without flash .End facing and beveling machines also ensure the pipe and quality.

6500 tons molding machine

Computer automatic control, according to the steel grade, wall thickness, plate width automatically adjust the reduction, reduction force and steel plate feed, the upper and lower grinding tools have automatic deformation compensation function,Using the stepping JCO forming method, half of the pre-bent steel plate is gradually bent from the edge to the middle of the plate on the forming machine with the set step length and number of times, and then the other half of the steel plate is also bent to form an open "O" shaped steel pipe.

Mechanical Expander

Imported full-pipe length mechanical expanding machine controlled automatically by computer. The entire length of the welded pipe is clamped and expanded, and the expanding head expands without gaps, so that the mechanical properties and straightness of the expanded welded pipe are more uniform. While eliminating the forming stress and welding stress, the tolerance of diameter, roundness and straightness meets customer requirements.

Six wire external welding machine

It is composed of American Lincoln digital welding machine, automatic welding seam laser tracking system, flux conveying and recycling system, television monitoring system and digital control system. The workpiece is moved by the trolley and the welding head is fixed for welding. The digital welding machine realizes that the welding characteristic curve can be adjusted as required, and the welding coefficient is automatically recorded and stored and traceable. 

Milling machine

It has the functions of automatic centering of steel plate and automatic copying and floating of milling edges. The milling speed and milling amount are automatically set according to the steel grade, wall thickness, groove shape and size. The computer automatically controls both sides of the steel plate to mill the required plate width and edge flatness, and the groove required for welding.

Automatic ultrasonic welding seam flaw detection equipment

The automatic digital ultrasonic flaw detection system can save the flaw detection curve record of each welded pipe. The laser automatic tracking system is adopted to ensure the quality of flaw detection. Set up a set of equipment before and after the expansion and hydraulic test to ensure product quality.

Spiral forming unit weld seam flaw detection equipment

The conveyed steel strip is bent into a steel tube using the principle of three-roll forming. The external control roller of the shaper forces the formed steel tube to maintain the shape and roundness, and the welding of the forming seam is stable. The forming angle is 40°-75°, and the maximum pitch is 2300mm.

 Hydraulic testing machine

It is used to carry out hydrostatic pressure test on welded pipe to check whether the welded pipe has leakage defects under specified pressure, so as to ensure the performance of welded pipe. The maximum allowable working load capacity of the computer-controlled hydraulic testing machine: 3000 tons, and its maximum test capacity: 30Mpa. The pressure value-stabilization time curve can be continuously recorded during the welded pipe hydraulic test process, and the hydraulic test record of each welded pipe can be saved curve.