I kēia lā, e lawe au iā ʻoe i Donghuan Malleable Iron Casting Co., Ltd. E aʻo kākou e pili ana i ke kaʻina hoʻolei ʻana o ke one i uhi ʻia.
I. Ka ʻike a me ka hoʻomaopopo ʻana i ke one i uhi ʻia
1. Nā hiʻohiʻona o ke one i uhi ʻia
Loaʻa iā ia ka hana ikaika kūpono; ʻO ka wai maikaʻi, ʻo nā ʻāpana one i hoʻomākaukau ʻia a me nā koʻi one he mau hiʻohiʻona maʻemaʻe a me nā hale paʻa, hiki ke hana i nā koina one paʻakikī; He maikaʻi ka maikaʻi o ka ʻili o ke one (cores), a hiki i ka roughness o ka ʻili ke hiki i ka Ra = 6.3 ~ 12.5μm, hiki i ka pololei o ka dimensional ke hiki i ka pae CT7 ~ CT9; maikaʻi ka collapsibility, a maʻalahi ka hoʻolei ʻana.
2. Ka laulā o ka noi
Hiki ke ho'ohana 'ia ke one i uhi 'ia no ka hana 'ana i nā po'i a me nā kohu one. Hiki ke hoʻohana pū ʻia nā ʻeleʻele a i ʻole nā kumu o ke one i uhi ʻia me ka hui pū ʻana me kekahi a i ʻole me nā ʻāpana one ʻē aʻe (cores); ʻAʻole hiki ke hoʻohana wale ʻia no ka hoʻolei ʻana i ka umekaumaha metala a i ʻole ka hoʻolei haʻahaʻa haʻahaʻa, akā hiki ke hoʻohana ʻia no ka hoʻolei ʻana i ka hao one a me ka hoʻolei ʻana i ka centrifugal thermal; hiki ke hoʻohanaʻiaʻaʻole wale no ka hanaʻana i nā mea hao hao a me nā mea hoʻoheheʻeʻole, akā, no ka hanaʻana i nā mea kila.
II. Ka hoʻomākaukau ʻana i ke one i uhi ʻia
1. Hoʻohui ʻia o ke one i uhi ʻia
Hoʻokumu ʻia ia me nā mea refractory, binders, curing agents, lubricants a me nā mea hoʻohui kūikawā.
2. Ke kaʻina hana o ke one i uhi ʻia
ʻO ke kaʻina hana hoʻomākaukau o ke one i uhi ʻia me ka uhi anuanu, ka uhi mahana, a me ka uhi wela. I kēia manawa, ʻaneʻane ka hana ʻana o ke one i uhi ʻia i ke ʻano o ka uhi wela.
3. Nā ʻano huahana nui o ke one i uhi ʻia
(1) Ordinary coated one is traditional coated sand
(2) Kiekie-ikaika a me haʻahaʻa-gassing 'ano uhi one
Nā hiʻohiʻona: ikaika kiʻekiʻe, hoʻonui haʻahaʻa, kinoea haʻahaʻa, kinoea lohi, anti-oxidation
(3) Kūleʻa wela kiʻekiʻe (ʻano) one uhi ʻia (ʻano ND)
Nā hiʻohiʻona: ke kūpaʻa wela kiʻekiʻe, ka ikaika kiʻekiʻe, ka hoʻonui haʻahaʻa, ke kinoea haʻahaʻa, ke kinoea lohi, maʻalahi ke hāʻule, anti-oxidation
(4) He one i uhi ʻia maʻalahi
Loaʻa iā ia ka ikaika maikaʻi a me ka hana haʻahaʻa haʻahaʻa haʻahaʻa maikaʻi loa, kūpono no ka hana ʻana i nā hoʻoheheʻe metala non-ferrous.
(5) Nā koi kūikawā ʻē aʻe i uhi ʻia i ke one.
III. ʻO ke kaʻina hana nui me ke one i uhi ʻia
ʻO ka mahana wela he 200-300 ℃, ʻo ka manawa hoʻōla ʻo 30-150s, a ʻo ke kaomi ʻana o ke one he 0.15-0.60MPa. No nā kohu one me nā ʻano maʻalahi a me ke one i uhi ʻia me ka wai maikaʻi, hiki ke koho ʻia ke kaomi pana haʻahaʻa. No nā ʻāpana one lahilahi, hiki ke koho ʻia kahi mahana wela haʻahaʻa. Ke haʻahaʻa ka mahana wela, hiki ke hoʻolōʻihi ʻia ka manawa hoʻōla. ʻO ka resin i hoʻohana ʻia i ke one i uhi ʻia he resin phenolic. ʻO nā mea maikaʻi o ke kaʻina hana kumu: ka hana ikaika kūpono; maikaʻi ka wai; maikaʻi ili o ke one kumu (Ra=6.3-12.5μm); ikaika ikaika o ka makū o ke one; maikaʻi collapsibility a me ka maʻalahi hoʻomaʻemaʻe o ka castings.
1. Mold (mold) wela
ʻO ka mahana wela kekahi o nā kumu nui e pili ana i ka mānoanoa a me ka ikaika o ka papa o ka pūpū, e hoʻomalu mau ʻia ma 220 ~ 260 ℃.
2. Paʻi paʻi one a me ka manawa
Mālama ʻia ka manawa pana one ma 3~10s. Inā pōkole loa ka manawa, ʻaʻole hiki ke hoʻokumu ʻia ke one mold (core). ʻO ke kiʻekiʻe o ke one pana ʻana ma kahi o 0.6MPa; ke haʻahaʻa loa ke kaomi, maʻalahi ke kumu i ka lawa ʻole o ka pana a i ʻole ka hemo. ʻO ka manawa paʻakikī: ʻO ka lōʻihi o ka manawa paʻakikī e pili ana i ka mānoanoa o ke one mold (core) a me ka mahana o ka mold, ma kahi o 60-120s.
I kēia manawa, ʻo kā mākou huahana nui he mau paipu hao malleable, nā paipu paipu, nā mea hoʻopili kiʻi, nā hui hose ea, nā paʻi pālua pālua, nā puʻupuʻu hose bolt hoʻokahi, nā hui camlock, nā hoʻopili wikiwiki, nā kino conduit, KC nipples, hose menders a ʻoi aku ma mua o nā haneli nā huahana āu e koho ai. Welina mai iā Donghuan Malleable Iron casting no nā nīnau, e ʻoiaʻiʻo mākou i kāu lawelawe.
Ka manawa hoʻouna: Dec-22-2021