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Technique for eliminating magnetic blow of electric arc of austenitic electrode by using permanent magnet

A permanent magnet, electrode arc technology, applied in the characteristics of welding electrodes, arc welding equipment, electrode accessories, etc., can solve the problems of inability to eliminate magnetic bias blowing, unable to guarantee welding construction, etc., to solve the problem of magnetic bias blowing and ensure the quality of welding. , the method is simple and easy to implement

Inactive Publication Date: 2005-02-16
中国船舶集团渤海造船有限公司
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Problems solved by technology

However, for the occasion with a large magnetic field, the above-mentioned solutions to magnetic blowing are not applicable, and the quality of welding construction cannot be guaranteed. For example, changing the angle of the electrode and reducing the welding current can not eliminate the magnetic blowing, which will cause a large number of repairs

Method used

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  • Technique for eliminating magnetic blow of electric arc of austenitic electrode by using permanent magnet
  • Technique for eliminating magnetic blow of electric arc of austenitic electrode by using permanent magnet

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Embodiment Construction

[0011] A method for eliminating the magnetic deflection of an austenitic electrode arc with a permanent magnet. First, a Tesla meter with a range of 0-1000mT and a reading of one decimal place is selected, and a permanent magnet 3 of NdFeB material with a large magnetic induction intensity is selected. Its length should not be less than 80mm, and the magnetic induction intensity can be 1000mT, 2000mT, 5000mT and other specifications. Then measure the magnetic induction intensity and the orientation of the magnetic poles at the groove 4 on the welding workpiece 2 with a Teslameter, select one or more permanent magnets 3 of the above-mentioned magnetic induction intensity specifications to be adsorbed on the groove top, and the N pole of the permanent magnet 3 is attracted. At the S pole of the workpiece 2, the S pole of the permanent magnet 3 is attracted to the N pole of the workpiece 1, so that the magnetic induction intensity of the permanent magnet 3 is equivalent to the mag...

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Abstract

A technique for eliminating the deviation blowing of electric arc of welding austenite electrode by permanent includes measuring magnetic induction intensity and magnetic pole direction of the bevel to be welded, sucking a permaneng magnet to the bevel in such manner that their magnetic polarities are reversed, measuring the magnetic induction intensity less than 2 mT, and welding. Its advantages are high effect and high welding quality.

Description

(1) Technical field [0001] The invention relates to the welding technology, in particular to a method for eliminating the arc magnetic blow of the austenitic electrode. (2) Background technology [0002] To eliminate the problem of magnetic deflection blowing during the welding process, for the occasion where the groove magnetic field is small, the method of connecting iron plates is used to solve the problem of magnetic deflection blowing; or the method of changing the angle of the electrode and reducing the welding current is used to solve it. However, for the occasion with a large magnetic field, the above-mentioned solutions to magnetic blowing are not applicable, and the quality of welding construction cannot be guaranteed. For example, changing the angle of the electrode and reducing the welding current can not eliminate the magnetic blowing, which will cause a lot of repairs. (3) Contents of the invention [0003] The technical problem to be solved by the present in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/08B23K9/26B23K31/02
Inventor 杨家武王永德王聿辉
Owner 中国船舶集团渤海造船有限公司
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