Electric arc welding rod and electric arc welding device
An arc welding and electrode technology, applied in the field of arc welding, can solve the problems of poor fluidity of the molten pool, and achieve the effects of good fluidity, uniform distribution, and promotion of flow.
Pending Publication Date: 2020-03-27
HARBIN WELDING INST LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide a welding core and arc welding electrode to solve the technical problem of poor fluidity of molten pool formed by arc welding electrodes in the prior art
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[0024] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0025] Such as Figure 1 to Figure 4 As shown, the present embodiment provides an arc welding electrode, which includes a welding core assembly 10 and a coating 20 wrapped outside the welding core assembly 10. The welding core assembly 10 includes a multi-strand welding core, and the multi-strand welding core is twisted and arranged.
[0026] In this embodiment, the multi-strand welding cores in the welding core assembly 10 are twisted together in a certain direction and according to certain rules. As the arc burns, the arc spot at the end of each strand of welding core rotates along the twisting direction, and the welding rod melts. The arc generated by the strand welding core can spontaneously...
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The invention relates to the technical field of electric arc welding, in particular to an electric arc welding rod and an electric arc welding device. The electric arc welding rod comprises a core wire assembly and a coating wrapping the core wire assembly. The core wire assembly comprises a plurality of core wires which are twisted together. The core wires in the core wire assembly are twisted together in a certain direction and according to a certain rule. In the welding process, electric arc spots at the ends of the core wires rotate in the twisting direction, electric arcs generated by thecore wires can spontaneously rotate with the center of the core wire assembly as the axis, metal in a molten state in a molten pool can be stirred through rotation of the electric arcs, and therefore, flowing of the metal in the molten state is promoted, the fluidity of the molten pool is improved, the fluidity of the molten pool is good, beneficial elements in the molten pool are evenly distributed, and the welding quality and the welding efficiency are improved.
Description
technical field [0001] The invention relates to the technical field of arc welding, in particular to an arc welding electrode and an arc welding device. Background technique [0002] Manual arc welding is a method in which the manually operated electrode and the workpiece to be welded are used as two electrodes, and the arc heat between the electrode and the weldment is used to melt the metal for welding. Due to its flexible application and strong adaptability to complex working conditions, manual arc welding plays an irreplaceable role in the manufacture of key components of high-end equipment such as nuclear power and marine engineering. [0003] Manual arc welding consists of a welding power supply, welding cable, welding tongs, welding rod, weldment, and arc. When welding, the welding rod is used to contact the workpiece to ignite the arc, and then the welding rod is lifted and kept at a certain distance. The welding power supply provides suitable arc voltage and welding...
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IPC IPC(8): B23K35/18
CPCB23K35/0283
Inventor 徐锴吕晓春王庆江杨昊泉王猛陈波李苏珊
Owner HARBIN WELDING INST LTD