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Ua hoʻomohala ʻia nā kaʻina hana hoʻoheheʻe like ʻole i ka manawa e nā foundries a me nā mea noiʻi, kēlā me kēia me kona ʻano ponoʻī a me nā noi o kahoolei metalae hoʻokō i nā koi ʻenehana a me nā lawelawe lawelawe. ʻO ka ʻōlelo maʻamau, e like me inā hiki ke hoʻohana hou ʻia ka hoʻoheheʻe ʻana a ʻaʻole paha, hiki ke hoʻokaʻawale ʻia nā kaʻina hana hoʻoheheʻe ʻia i Expendable Mold Casting, Permanent Mold Casting and Composite Mold Casting. Hiki ke hoʻokaʻawale ʻia ka hoʻoheheʻe ʻana i hoʻopau ʻia ihoolei one, hoʻolei ʻia ʻana o ka pūpū,hoʻolei kālāa me ka hoolei hu'ahu'a nalowale, oiai o ka hoolei pa'a mau i uhi nui i ka umekaumaha make hoolei, haahaa puʻe make hoolei a me kiʻekiʻe puʻe make hoolei.
1. Hoolei Mold Expendable
Hana ʻia nā ʻōpala i hoʻopau ʻia me ke one, plaster, ceramics, a me nā mea like. Hoʻohui maʻamau me nā mea hoʻopaʻa like ʻole, a i ʻole nā mea hoʻopaʻa paʻa. He 90% one, 7% pālolo, a me 3% wai ka ʻōpala one maʻamau. ʻO kēia mau mea he refractory (kū i ka wela kiʻekiʻe o ka metala hehee). Ma hope o ka paʻa ʻana o ka hoʻoheheʻe ʻana, ua wāwahi ʻia ka ʻōpala i hoʻopau ʻia i loko o kēia mau kaʻina e wehe i nā hoʻoheheʻe metala hope loa.
2. Hoolei Mold mau
Hoʻohana nui ʻia nā metala paʻa e mālama i ka ikaika ma nā wela kiʻekiʻe. Hoʻohana pinepine ʻia lākou. Hoʻolālā ʻia i hiki ke hoʻoneʻe maʻalahi i nā mea hoʻoheheʻe metala a hiki ke hoʻohana hou ʻia ka poʻi. Hoʻohana ka hoʻoheheʻe ʻana mau i ka mea hoʻokele wela ʻoi aku ka maikaʻi ma mua o ka hoʻonui ʻia ʻana o nā mold nonmetallic; no laila, hoʻokau ʻia ka hoʻoheheʻe paʻa ʻana i kahi kiʻekiʻe o ka hoʻoilo, e pili ana i ka microstructure a me ka nui o ka palaoa.
3. Hoolei Mold Composite
Hana ʻia nā mea hoʻoheheʻe ʻia i ʻelua mau mea like ʻole (e like me ke one, graphite, a me ka metala) e hui pū ana i nā pono o kēlā me kēia mea. He ʻāpana mau a hiki ke hoʻohana ʻia nā mold composite a hoʻohana ʻia i nā kaʻina hoʻoheheʻe like ʻole e hoʻomaikaʻi ai i ka ikaika mold, hoʻomalu i nā helu hoʻomaha, a hoʻopaʻa i ka waiwai holoʻokoʻa o ke kaʻina hoʻolei.
![mea hoohehee metala](http://www.steel-foundry.com/uploads/metal-casting-foundry.jpg)
![ductile hao one hoolei](http://www.steel-foundry.com/uploads/ductile-iron-sand-castings.jpg)
Ka manawa hoʻouna: Feb-18-2021