![]() |
發(fā)布時間: 2015-12-10 21:09
正文摘要:焊接鋁合金部分: 焊接時候鋁及鋁合金的線膨脹系數(shù)約為碳素鋼和低合金鋼的兩倍。鋁凝固時的體積收縮率較大,焊件的變形和應力較大,因此,需采取預防焊接變形的措施。鋁焊接 ... |
Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
GMT+8, 2025-7-8 11:12 , Processed in 0.073070 second(s), 25 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.