Electric arc welding nozzle and electric arc welder
A technology of arc welding and welding tip, which is applied in arc welding equipment, welding equipment, electrode accessories, etc. It can solve the problems of increasing welding metal pits and pores, affecting gas protection, and poor transmission of welding wire W, so as to improve the accuracy of appearance and size , Prevent accumulation, prevent welding deviation and welding seam bending effect
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Embodiment 1
[0115] On the welding tip 101 for lytic gas shielded arc welding shown in Figure 11 and Figure 12, as the welding wire insertion hole 102c of the power supply tip 102, a standard hole with an inner diameter of 1.30mm is provided, and the front end is processed to a depth of The 12mm cross-shaped slit is provided with four slit grooves 102d in the circumferential direction. By changing the strength of the leaf spring 105 before attaching the leaf spring 105, it is possible to fabricate the power supply nozzle 102 provided with the leaf spring that variously changes the pull-out resistance F of the welding wire. At this time, the welding wire is passed through the power supply nozzle 102, and the resistance F of drawing out the welding wire is measured with a spring balance.
[0116] Put the power supply nozzle 102 made in this way together with the insulating guide rod 103 and the guide seat 104 into an unillustrated pulse magnetic welding device, so that the power supply nozzl...
Embodiment 2
[0123] Using the welding tip of the present invention, carry out the same drum welding durability test as in Example 1 for welding wires with diameters of 0.8mm, 1.2mm, and 1.6mm. Runout is compared with existing welding tips without insulated guide rods. Extend the protruding length of the welding wire to 150mm, and evaluate the radial runout of the welding wire through the impact test of fixed-point punching on the square eye paper, and convert it into the radial runout per 10mm of protruding length, that is, 1 / 15 of the measured value. Regarding the radial runout, it is qualified within 1 / 2 of the wire diameter D (mm) (that is, when the wire diameter is 0.8mm, it is within 0.4mm; when the wire diameter is 1.2mm, it is within 0.6mm; when the wire diameter is 1.6 mm within 0.8mm), if it exceeds, it is unqualified (×).
[0124] Regarding the welding tips used at this time, in the order of wire diameter 0.8mm, 1.2mm, 1.6mm, the slit width Ws is 0.10mm, 0.20mm, 0.30mm, and the ...
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Abstract
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