|
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ì軓S‹Z•ñ KAWASAKI STEEL GIHO Vol.6 (1974) No.1 ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ |
| “d‹CˆŸ‰”ƒƒbƒL|”ƒŠƒo[ƒWƒ“ƒN‚̃VƒŠ[ƒYƒXƒ|ƒbƒg—nÚ«‚ɂ‚¢‚Ä Series Spot-Weldability of RIVER ZINC Electrolytic Zinc-coated Steel Sheet ’Ѻ@úÛˆê(Koichi Tsumura) |
| —vŽ| : ˆŸ‰”ƒƒbƒL—Ê20g/m2ˆÈ‰º‚̃Šƒo[ƒWƒ“ƒN‚̃VƒŠ[ƒYƒXƒ|ƒbƒg—nÚ‚ÌÅ“KðŒ‚ðC”ÂŒú0.6mm‚Æ0.8mm‚ð‘g‚݇‚킹‚½ê‡‚ɂ‚¢‚Ä’²‚×C—≄|”‚ƔäŠr‚µ‚½B’Ê“dŽžŠÔ‚Qsec‚Ì‚Æ‚«CƒŠƒo[ƒWƒ“ƒNE—≄|”‚Ƃà—nÚ“d—¬10.1kAC‰Áˆ³—Í200kg‚ªÅ“K‚Å‚ ‚Á‚½B‰Áˆ³—Í‚ð‘‚·‚Æ—nÚ“d—¬‚à‘‰Á‚³‚¹‚é•K—v‚ª‚ ‚èC—¼ŽÒ‚̊Ԃɂ͈ê’è‚ÌŠÖŒW‚ª”F‚ß‚ç‚ꂽBÞŽ¿•Ê‚Ì—nÚ‚Ì‚µ‚â‚·‚³‚̓Šƒo[ƒWƒ“ƒNiƒIƒCƒŠƒ“ƒOj„—≄|”„ƒŠƒo[ƒWƒ“ƒNi—ÓŽ_‰–ˆ—j‚̇‚Å‚ ‚Á‚½B150‰ñ‚̘A‘±—nÚì‹Æ‚ðs‚È‚Á‚Ä‚à—nÚ“_‹“x‚̕ω»‚Í”F‚ß‚ç‚ê‚È‚©‚Á‚½B |
| Synopsis : Series spot-weldability for RIVER ZINC of which an amount of coating of zinc is less than 20g/m2 and thickness is 0.6mm and 0.8mm is investigated and compared with that for cold rolled steel sheet. The most suitable welding condition for RIVER ZINC coincides with that for cold rolled steel sheet, as summarized in the following: 2 sec (120 cycle) for heating time, 10.1 kA for welding current, and 200kg for pressure of an electrode tip. As the pressure of a tip increases, welding current must also be increased, that is, a relation is observed between them. The order of easiness for spot-welding is RIVER ZINC (oiling)>cold rolled steel sheet> RIER ZINC (phosphate treatment). After a welding work of 150 times using the same electrode tip, any change of strength of welded spots is not observed. |
| –{•¶iPDF: 9P/367kbj |