Nā Pōmaikaʻi Hana o nā Alloy Copper Cast

1. Kaʻina hana: Ka nuinā hui keleaweloaʻa i ka shrinkage nui, e hoʻomalu ʻia ke kaʻina paʻa i ka wā o ka hoʻolei ʻana e hoʻōki i ka hoʻokumu ʻana o nā lua shrinkage.ʻO ke keleawe keleawe maikaʻi i hoʻoheheʻe ʻia i loko o ke kūlana wai, ʻaʻole e hoʻopau ʻia ke kahe ʻana i ka wā e ninini ana.I ka manawa like, e mākaukau ka ʻōnaehana hoʻoheheʻe e pale i ka paʻi ʻana o ka metala i hoʻoheheʻe ʻia, i hiki ai i ka metala hoʻoheheʻe ke kahe mālie.ʻO ka ʻōnaehana ninini wai ma lalo e hoʻohana mau ʻia i ka hana.He kūpono ka tin keleawe Z no ka hoʻoheheʻe ʻia ʻana o ka metala, no ka mea, wikiwiki ka wikiwiki o ka hoʻoheheʻe ʻana o ka metala, kahi e hōʻemi ai i ka wahi paʻa o ka metala i hoʻoheheʻe ʻia, ʻaʻole maʻalahi ka hāʻawi ʻana i ka porosity shrinkage, a ʻo ke ʻano o loko o ka hoʻolei ʻana. paʻapū.
2. ʻO ke kila kila i hoʻoheheʻe ʻia o ke keleawe keleawe i hoʻoheheʻe ʻia i loko o ke kūlana wai, a no laila ua hoʻoheheʻe ʻia ka oxide i hoʻokumu ʻia i loko o ke keleawe e ʻoki i nā ʻano mechanical o ka alloy.E like me nā alumini alumini, hoʻoheheʻe ʻia nā ʻāpana keleawe i loko o kahi kapuahi hikiwawe loa, i ʻole e pili pono ka wai keleawe i ka wahie a me ka ea, no laila e hoʻemi i ka oxidation a me ka nalowale o ka metala a mālama i ka metala maʻemaʻe.i mea e hooki ai i ka oxidation o ke keleawe, pono e hoohui ia na flux e like me ke aniani a me ka borax e huna i ka wai keleawe ke hoohehee i ke keleawe.No ka mea ʻo ka zinc i loko o ke keleawe ponoʻī he deoxidizer maikaʻi, ʻaʻohe pono e hoʻohui i ka flux a me ka deoxidizer i ka wā e hoʻoheheʻe ai i ke keleawe.
3. Hoʻokaʻawale: Hoʻokaʻawale ʻia i ʻelua mau ʻāpana: hoʻolei keleawe a hoʻolei keleawe;ua mahele hou ia ke keleawe i hooheheeia i ke keleawe ma'amau a me ke keleawe kūikawā;Ua māhele ʻia ke keleawe i hoʻolei ʻia i ke keleawe keleawe a me ke keleawe keleawe kūikawā.ʻO ke kinikini keleawe he mea i hana ʻia ma ka hoʻohui ʻana i hoʻokahi a i ʻole kekahi mau mea ʻē aʻe i ke keleawe maʻemaʻe ma muli o ka matrix.ʻO ke keleawe maʻemaʻe he poni-ʻulaʻula, i kapa ʻia hoʻi he keleawe.ʻO ka mānoanoa o ke keleawe maʻemaʻe ʻo 8.96, ʻo 1083 ℃ ka pae maloʻo, a he maikaʻi loa ka conductivity uila, conductivity thermal, ductility a me ka pale ʻana i ka corrosion.
4. He mea maʻamau ka hana ʻana i nā lako uila e like me nā mea hana, busbars, uwea, switchgear, transformers, etc., ma ke ʻano he mea hoʻokele wela e like me nā mea hoʻololi wela, nā paipu, nā ʻohi ʻohi pāpaʻa no nā mea hoʻomehana lā.Hoʻokaʻawale ʻia nā ʻāpana keleawe maʻamau i ʻekolu mau ʻāpana: keleawe, keleawe a me cupronickel.He keleawe keleawe paha ke keleawe me ka zinc no ka mea ʻo ka mea hoʻohui nui, aia kahi kala melemele nani a nānā pū ʻia e like me ke keleawe.Kapa ʻia ka copper-zinc binary alloy he keleawe maʻamau a i ʻole keleawe maʻalahi.Ua kapa ʻia ʻo keleawe me ʻekolu yuan he keleawe kūikawā a i ʻole keleawe paʻakikī.ʻO nā ʻāpana keleawe i loaʻa akā ʻo 36% zinc i haku ʻia me ka hopena paʻa mua a loaʻa nā waiwai hana anu.no ka laʻana, ʻo ke keleawe he 30% zinc ka mea maʻamau i ka hana ʻana i nā pahu pōkā, i kapa ʻia ʻo brass pahu pahu a i ʻole ʻehiku-ʻekolu keleawe.