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Phenolic resin no nā mea hana
Phenolic resin no ka foundry ʻO kēia moʻo he thermoplastic phenolic resin me nā flakes melemele a i ʻole granular, i ʻike ʻia penei: 1. He ikaika kiʻekiʻe ka resin a he liʻiliʻi ka nui o ka hoʻohui, hiki ke hoʻemi i ke kumukūʻai. 2. Haʻahaʻa kinoea hanauna, ho'ēmi i hoolei porosity defects a hoʻomaikaʻi yield. 3. Loaʻa ka resin i ka flowability maikaʻi, ke kiʻi maʻalahi, a me ka hoʻopiha ʻana me ka ʻole o kahi kihi make. 4. ʻO ka phenol manuahi haʻahaʻa, hoʻemi i ka pollution kaiapuni a hoʻomaikaʻi i ka ʻoihana hana o nā limahana. 5. Hoʻopaʻa...
