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Influence of Frequency on Welding of High Frequency Longitudinal Welded Pipe Unit
Release time:
2018-12-06 13:51
Knowing the influence of frequency 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 frequency on high frequency longitudinal welded pipe machine.
Knowing the influence of frequency 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 frequency on high frequency longitudinal welded pipe machine.
Frequency:
The frequency of high-frequency welding has a great influence on the welding, because the high-frequency frequency affects the distribution of the current inside the steel plate. The influence of the selection frequency on welding is mainly the size of the heat affected zone of the weld. In terms of welding efficiency, a higher frequency should be used as much as possible. 100KHz high-frequency current can penetrate ferritic steel 0.1mm, 400KHz can only penetrate 0.04mm, that is, the current density distribution on the surface of the steel plate, the latter is nearly 2.5 times higher than the former. In production practice, the frequency of 350KHz ~ 450KHz can be generally selected when welding plain carbon steel materials. When welding alloy steel materials and welding thick steel plates above 10mm, a lower frequency of 50KHz ~ 150KHz can be used, because the skin effect of chromium, zinc, copper, aluminum and other elements contained in alloy steel is different from that of steel. Foreign high-frequency equipment manufacturers have now mostly adopted the new technology of solid-state high frequency. After setting a frequency range, it will automatically track and adjust the frequency according to the material thickness and unit speed during welding.
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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