The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2005
Filed:
Apr. 24, 2000
Toru Kihara, Osaka, JP;
Kazuya Kuriyama, Osaka, JP;
Toru Kihara, Osaka, JP;
Kazuya Kuriyama, Osaka, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
The heat of arc plasma generated in arc welding is used to provide a welding method for a Si-based material. The method of the present invention is capable of welding a Si-based material, which is difficult to weld by conventional methods due to its brittle nature and high electric resistance. In an argon gas atmosphere, a tungsten electrode is used as a cathode. A water cooling copper sheet and plate is used as an anode. An arc is generated between this pair of electrodes. The arc length is gradually extended, and a pair of Si-based materials are near an arc column. Fusion welding of a weld zone is carried out while rotating the Si-based materials around an axis.