The welding seam leveling machine processes the weld seam of the stainless welded steel pipe on-line, and repeatedly rolls the inner and outer weld seams of the welded pipe synchronously, so that the weld seam transitions smoothly with the base material, making the seam welded pipe seamless and highlights the advantages of the welded pipe. Stainless steel welded pipe manufacturers have been plagued by the removal of internal and external weld reinforcement, especially the removal of internal weld reinforcement. Although there are solutions such as built-in scraper or internal grinding device, the effect is not satisfactory. This seriously hinders the further expansion of the application field of stainless steel welded pipes.
1. Equipment composition of stainless steel welded pipe weld seam leveling machine
The internal leveling stainless steel mechanical equipment consists of internal and external weld leveling frames, hydraulic and pneumatic systems, fully automatic electro-hydraulic and pneumatic control systems with PLC control, and also includes molds and rolling liquid circulation equipment.
2. Technical characteristics of welded seam leveling machine for stainless steel welded pipe
The stainless steel welded pipe inner and outer weld leveling device is a reciprocating automatic rolling device with a built-in mandrel and rolls on the stainless steel welded pipe. By controlling the rolling strength and passes, the requirements of leveling the inner and outer welds of stainless steel welded pipes, completely removing the reinforcement of the inner and outer welds and being flush with the base metal are achieved.
3. Working process of stainless steel welded pipe weld leveler
After the stainless steel welded pipe with internal and external weld reinforcement is rolled by a horizontal roller, the reinforcement is removed, the cross section of the welded pipe becomes a horizontal ellipse, and the mandrel is stuck in the welded pipe and follows the welded pipe. After being rolled by the vertical roller, the section of the welded pipe becomes a perfect circle, the mandrel is separated from the welded pipe and pulled back to the proper position by the cylinder when the frame returns, and then the second rolling cycle is performed.
The main feature of the welding seam leveling machine is a pair of rollers repeatedly rolling the raised weld seam more than 30 times per minute to ensure a smooth transition between the weld seam and the base metal. The advanced proportional curve hydraulic control is adopted to make the equipment operation balance the impact control system and equipment protection of the welded pipe on the welded pipe production line, which is automatically controlled by PLC, so the reliability and safety of the equipment are guaranteed.
1. Equipment composition of stainless steel welded pipe weld seam leveling machine
The internal leveling stainless steel mechanical equipment consists of internal and external weld leveling frames, hydraulic and pneumatic systems, fully automatic electro-hydraulic and pneumatic control systems with PLC control, and also includes molds and rolling liquid circulation equipment.
2. Technical characteristics of welded seam leveling machine for stainless steel welded pipe
The stainless steel welded pipe inner and outer weld leveling device is a reciprocating automatic rolling device with a built-in mandrel and rolls on the stainless steel welded pipe. By controlling the rolling strength and passes, the requirements of leveling the inner and outer welds of stainless steel welded pipes, completely removing the reinforcement of the inner and outer welds and being flush with the base metal are achieved.
3. Working process of stainless steel welded pipe weld leveler
After the stainless steel welded pipe with internal and external weld reinforcement is rolled by a horizontal roller, the reinforcement is removed, the cross section of the welded pipe becomes a horizontal ellipse, and the mandrel is stuck in the welded pipe and follows the welded pipe. After being rolled by the vertical roller, the section of the welded pipe becomes a perfect circle, the mandrel is separated from the welded pipe and pulled back to the proper position by the cylinder when the frame returns, and then the second rolling cycle is performed.
The main feature of the welding seam leveling machine is a pair of rollers repeatedly rolling the raised weld seam more than 30 times per minute to ensure a smooth transition between the weld seam and the base metal. The advanced proportional curve hydraulic control is adopted to make the equipment operation balance the impact control system and equipment protection of the welded pipe on the welded pipe production line, which is automatically controlled by PLC, so the reliability and safety of the equipment are guaranteed.
