ʻO ke kaʻina hoʻolei ʻana okeleawe keleawe: hehee a ninini.Hoʻoheʻe ʻia ke keleawe silikoni i loko o ka umu hoʻokomo waika.Pono e hoʻomaʻemaʻe ʻia ka uku i ka 150 ~ 200 ℃ ma mua o ka hoʻokomo ʻia ʻana i loko o ka umu ahi, a hoʻomaʻemaʻe ʻia ke keleawe electrolytic, ʻānai ʻia i ka wela kiʻekiʻe a hoʻopau maikaʻi ʻia ma mua o ka hoʻohana ʻana.ʻO ka hui ʻana o Si he 3.1%, ʻo Mn he 1.2%, a ʻo ke koena ʻo Cu, a ʻo Fe he 0.25% a ʻo Zn he 0.3%.ʻO ke kauoha hānai: hoʻohui mua i ka 0.5% flux (boric acid + aniani) o ka nui o ka uku, hoʻohui i ka silikoni crystalline, manganese metala a me ke keleawe electrolytic, hoʻonui i ka mahana i 1250 ℃, hoʻohui i ka hao a me ka zinc, a hiki i ka piʻi ʻana o ka mahana i 1300 ℃, paʻa no 10 min, a laila hoʻohālike a ninini i loko o ke one mold test block.Inā hoʻohaʻahaʻa ʻia ka poloka hoʻāʻo ma ka waena ma hope o ka hoʻoluʻu ʻana, ʻo ia ke ʻano he mea maʻamau ka mea hoʻoheheʻe, ʻoki ʻia ka slag mai ka umu a uhi ʻia me ka perlite e pale ai i ka oxidation a me ka hoʻoulu ʻana.
ʻO ka wela o ka ninini ʻana he 1090 ~ 1120 ℃.No nā ʻāpana ʻāpana lahilahi, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka ʻōnaehana hoʻokele a i ʻole ka ʻaoʻao.Ke ʻoi aku ka mahana o ka ninini ʻana ma mua o 1150 ℃, maʻalahi ka hana ʻana o ka wela wela, ʻoiai ke emi ka mahana o ka ninini ʻana ma lalo o 1090 ℃, hiki ke maʻalahi nā hemahema.
Ke hoʻohālikelike ʻia me ke keleawe keleawe (Sn 9%, Zn 4%, Cu), ʻo 55 ℃ ka laulā paʻa o ke keleawe keleawe, ʻoiai ʻo ka keleawe keleawe he 146 ℃, no laila ʻoi aku ka kiʻekiʻe o kona wai ma mua o ke keleawe keleawe.Hiki ke ʻike ʻia he ʻoi aku ka kiʻekiʻe o ke keleawe silika ma mua o ke keleawe keleawe ma ka wela ninini like.
ʻO ka hana kuʻi ʻana o ke keleawe silika, ʻo ka hana kuʻi ʻana o nā ʻāpana keleawe like ʻole ua māhele ʻia i 4 mau papa e like me kā lākou pono a me nā mea maikaʻi ʻole, maikaʻi ka papa 1, ʻoluʻolu ka papa 2, hiki ke hoʻopaʻa ʻia ka papa 3 ma ke kaʻina hana kūikawā, ʻaʻole maikaʻi ka papa 4, ʻo ke keleawe keleawe he papa 3, ʻoiai ʻo ke keleawe silika he papa 1.
Ke hoʻohālikelike ʻia me nā ʻāpana keleawe ʻē aʻe, he haʻahaʻa haʻahaʻa haʻahaʻa ke keleawe keleawe a ʻaʻole pono ka preheating ma mua o ke kuʻi ʻana, akā loaʻa ka brittleness thermal i ka laulā o 815 ~ 955 ℃.Eia nō naʻe, inā he maikaʻi maikaʻi ka pā i hoʻolei ʻia, ʻo ia hoʻi, ka pā hoʻolei ma hope o ka hoʻohana ʻana i nā hana hoʻomaikaʻi ʻenehana, ua hōʻoia ka hana ʻaʻole e hiki mai ka pohā wela ma kēia wahi wela.
Hiki i ke keleawe silikon ke hoʻoheheʻe kinoea, ka wili arc, ka wili lima TIG a me ka wili MIG.
Ka manawa hoʻouna: ʻAukake-04-2022