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US 2006/0131281 A1Published application
Protective device for welding electrodes
AssigneeFronius International GmbH
InventorsWalter Stieglbauer, Gerald Hieslmair
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AssigneeFronius International GmbH
InventorsWalter Stieglbauer, Gerald Hieslmair
Estimating the term…
The invention relates to a device for protecting an electrode during the resistance welding of workpieces, in particular sheet metal. Said device comprises a strip that is placed over the electrode and can be displaced in relation to the latter, a backing material of said strip having an electrically conductive coating. To improve the welding quality, the coating is applied to the opposite side of the strip from the electrode and consists of a material, whose hardness is less than that of the backing material of the strip. The soft, electrically conductive coating improves the transfer of current from the electrode to the workpiece, thus preventing weld spatter and improving the welding quality.
A device for the protection of an electrode (2) during the resistance welding of workpieces, particularly metal sheets (4, 5), including a strip (1) placed over the electrode (2), preferably in a manner displaceable relative to the same, wherein a carrier material (14) of the strip (1) is provided with an electrically conductive coating (15), wherein said coating (15) is arranged on the strip side facing away from the electrode (2) and is comprised of a material which has a lower hardness than the carrier material (14) of the strip (1) and a melting temperature of below 1000 ° C.
(canceled)
Dependencies are inferred from the claim text.