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Influence of Impedance on Welding of High Frequency Longitudinal Welded Pipe Unit
Release time:
2018-12-06 13:49
Knowing the influence of the impedance device on welding can better operate and adjust the high-frequency straight seam welded pipe unit to achieve higher efficiency. Today, let's take a look at the influence of the impedance device on the high frequency longitudinal welded pipe machine.
Knowing the influence of the impedance device on welding can better operate and adjust the high-frequency straight seam welded pipe unit to achieve higher efficiency. Today, let's take a look at the influence of the impedance device on the high frequency longitudinal welded pipe machine.
The function of the impedance device is to strengthen the skin effect and adjacent effect of high-frequency current. The impedance device is generally made of M-XO/N-XO type iron oxide body, and is usually made of Φ10mm ×(120-160)mm magnetic rod, which is bundled in a heat-resistant and insulated shell, and the inside is cooled by water. The impedance device should be set to match the pipe diameter to ensure the corresponding magnetic flux. In order to ensure the permeability of the impedance device, in addition to the material requirements of the impedance device, the ratio of the cross-sectional area of the impedance device to the cross-sectional area of the pipe diameter should be large enough. When producing high-grade pipes such as API pipes, it is required to remove internal burrs. The impedance device can only be placed in the internal burr knife body, and the cross-sectional area of the impedance device will be much smaller. At this time, the effect of centralized sector arrangement of magnetic rods is better than annular arrangement. The distance between the impedance device and the welding point also affects the welding efficiency. The gap between the impedance device and the inner wall of the pipe is generally 6~15mm, and the upper limit value is taken when the pipe diameter is large. The impedance device should be placed concentrically with the pipe, and the distance between its head and the welding point should be 10~20mm. Similarly, the large value should be taken when the pipe diameter is large.
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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