Welding torch for milling head sleeve and tungsten-pole inert gas protection welding
A technology of tungsten inert gas and rolling head, which is applied in the direction of protective supporting devices, electrode characteristics, welding equipment, etc., and can solve problems such as difficult electrode replacement, breakdown, and large resistance
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[0033] Embodiments of the invention will be described based on examples with reference to the drawings.
[0034] Fig. 1 is a partial sectional view of the tungsten inert gas shielded welding torch of the present invention. In this figure, functions other than the nip bushing 9 are the same as those of the prior art shown in FIG. 2 , and thus the same reference numerals are attached, and descriptions thereof are omitted.
[0035] In FIG. 1 , the chuck sleeve 9 is composed of a cylindrical insert member 91 attached to the inner side of the front end portion including the pointed tapered portion 9 a and a chuck sleeve main body 92 of the remaining part. The embedded member 91 is fixed on the front end of the sleeve body 92 by crimping, pressing or welding.
[0036] In addition, the insert member 91 has an electrode penetration insertion hole 91a in the axial core, and is formed of a conductive metal having high electrical conductivity, impact resistance, and wear resistance, suc...
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