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Influence of Welding Pressure on Welding of High Frequency Longitudinal Welded Pipe Unit
Release time:
2018-12-06 11:59
Know the influence of welding pressure on welding, in order to better operate and adjust the high frequency straight seam welded pipe unit, in order to achieve higher efficiency. Today, let's take a look at the influence of welding pressure on high frequency longitudinal welded pipe machine.
Know the influence of welding pressure on welding, in order to better operate and adjust the high frequency straight seam welded pipe unit, in order to achieve higher efficiency. Today, let's take a look at the influence of welding pressure on high frequency longitudinal welded pipe machine.
Welding pressure is also the main parameter of high frequency welding. Theoretical calculations suggest that the welding pressure should be 100 ~ 300MPa, but the real pressure in this area is difficult to measure in actual production. Generally, it is estimated based on experience and converted into the extrusion amount of the pipe edge. Different wall thicknesses take different extrusion amounts, usually the extrusion amount below 2mm is: 0.5t ~ t for 3~6mm; 0.5t for 6~10mm; 0.3t ~ 0.5t for more than 10mm. In the production of API steel pipes, gray spot defects in welds often occur. Gray spot defects are refractory oxides. In order to eliminate gray spots, Baosteel and other manufacturers have adopted the method of increasing the extrusion pressure and welding allowance. The extrusion surplus of steel pipes above 6mm reaches a material thickness of 0.8-1.0mm, with good results.
Jiangsu Nanyang Machinery Manufacturing Co., Ltd. specializes in the design and manufacture of various types of high-frequency welded pipe units, stainless steel precision welded pipe units, high-precision steel-plastic and stainless steel composite welded pipe units; design and manufacture of various specifications and models of welded pipe molds-rollers, special-shaped rollers, So that the products have formed a series, and enjoy a high reputation among the majority of customers at home and abroad. Nanyang machinery, ZG series high frequency welded pipe unit, GW series cold bending forming machine unit, BG series stainless steel pipe making machine unit, FG high precision composite pipe production line, roll mold. Welcome to inquire: 0514-87736048
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