Aluminum Alloy Koho alakai

ʻO 6061-T6 ka mea i manaʻo nui ʻia ʻo ka alumini alumini kumu nui loa. Hāʻawi ia i kahi kaulike ikaika o ka ikaika (310 MPa tensile), kūpaʻa maikaʻi i ka corrosion, weldability, a me ka machinability. Hiki ke mālama ʻia i ka wela, loaʻa i nā ʻano huahana āpau (pepa, pā, bar, extrusion), a ʻo ia ka mea i hoʻopaʻa ʻia ma ka honua holoʻokoʻa. Inā ʻaʻole maopopo ʻoe i ka huila e koho ai, ʻo 6061-T6 ka wahi hoʻomaka palekana loa.

Manaʻo ʻia ʻo 7075 ʻaʻole hiki ke weldable e nā ʻano kuʻi kuʻi kuʻuna maʻamau (MIG/TIG). He mea maʻalahi loa ia i ka pohā wela i loko o ka weld zone a loaʻa i ka nalo ikaika ma ka wahi i hoʻopilikia ʻia i ka wela. No nā noi e koi ana i ka ikaika kiʻekiʻe a me ka weldability, e noʻonoʻo i ka 7005 a i ʻole e hoʻololi i 6061-T6 a i ʻole 5083 ma muli o kāu koi ikaika. Hoʻohui pinepine ʻia nā ʻāpana 7075 e nā mea hoʻopaʻa a i ʻole ka hoʻopaʻa paʻa.

ʻO H32 a me T6 ʻelua mau ʻano hoʻoikaika ʻokoʻa. H32 (strain hardened + stabilized) pili i nā mea hoʻoheheʻe wela ʻole e like me 5052 a me 3003 — hoʻoikaika ʻia ke metala e ka hana anu. Hoʻohana ʻia ʻo T6 (ka hoʻonā wela i mālama ʻia + ʻelemakule) i nā mea hoʻoheheʻe wela e like me 6061 a me 7075 - hiki mai ka ikaika mai ka paʻakikī o ka ua. ʻAʻole hiki iā ʻoe ke hoʻohana i ka T6 i kahi huila 5052, a ʻaʻole ʻoe e hoʻohana i ka H32 ma kahi huila 6061.

ʻO 5083-H116 ke kūlana gula no nā noi kai. Hāʻawi kona ʻike magnesium kiʻekiʻe i ke kūʻē kūʻokoʻa i ka ʻino wai paʻakai, a ʻo ka H116 e hōʻoia pono i ka pale ʻana i ka exfoliation a me ka corrosion intergranular. No nā noi kai liʻiliʻi (mea paʻa, nā mea pono), ʻo 5052-H32 kahi ʻano kumu kūʻai. E hōʻalo i nā huila 2xxx a me 7xxx i nā kaiapuni kai no ka mea he ʻino ko lākou pale ʻana me ka ʻole o nā pale pale.

E koho i ka 5052 inā ʻo ka pale ʻana i ka corrosion ka mea nui (ka moana, kemika, ka ʻike waho) a pono ʻoe e hana i ka ʻāpana me ka ʻole o ka mālama wela. E koho i ka 6061 inā makemake ʻoe i ka ikaika kiʻekiʻe, ʻoi aku ka maikaʻi machinability, a i ʻole ka wela-treatability no nā noi hoʻolālā. ʻAʻole hiki ke hoʻohana ʻia ʻo 5052 i ka wela a hoʻohana maʻamau i ka ʻano pepa/pā. Loaʻa ka 6061 ma nā ʻano āpau a hiki ke mālama ʻia i ka wela i T6 no ka ikaika kiʻekiʻe. Ua like ke kumukūʻai; ʻO ke koho e pili ana i ka waiwai o kāu noi i ke kūpaʻa corrosion (5052) a i ʻole ka ikaika a me ka versatility (6061).