ʻAuhea ka ʻokoʻa o ka maikaʻi ma waena o nā lako uhi aniani hema a me nā lako uhi aniani ʻākau?

Nā Hōʻuluʻulu Manaʻo:

I kēia manawa, ua māhele nui ʻia ka pauka ʻaila enamel o ka ʻoihana lako enameling aniani o Kina i ʻelua mau māhele: ʻaila anu (pauka) a me ka ʻaila wela (pauka). ʻO ka hapa nui o nā mea hana lako enameling ma ka ʻākau e hoʻohana pinepine i ka ʻenehana ʻaila anu, ʻoiai ʻo ka hapa nui o nā mea hana lako enameling aniani ma ka hema e hoʻohana i ka ʻenehana ʻaila wela. Eia kahi kūkākūkā pōkole e pili ana i ka ʻokoʻa ma waena o ka pauka ʻaila wela a me ke anu a me nā pono a me nā hemahema: ʻo ka ʻenehana ʻaila wela o ka Hema ka pono nui o ke kumukūʻai haʻahaʻa loa, pinepine ka hana enameling ʻelua a…

1. I kēia manawa, ua māhele nui ʻia ka pauka ʻāpala enamel o ka ʻoihana hana enameling aniani o Kina i ʻelua mau māhele: ʻāpala anu (pauka) a me ka ʻāpala wela (pauka). ʻO ka hapa nui o nā mea hana lako enameling ma ka ʻākau e hoʻohana pinepine i ka ʻenehana ʻāpala anu, aʻo ka hapa nui o nā mea hana lako enameling aniani ma ka hema e hoʻohana i ka ʻenehana ʻāpala wela. Eia kahi kūkākūkā pōkole e pili ana i ka ʻokoʻa ma waena o ka pauka ʻāpala wela a me ke anu a me nā pono a me nā hemahema.

2. ʻO ka pōmaikaʻi nui o ka ʻenehana pīpī wela ma ka hema, ʻo ia ke kumukūʻai haʻahaʻa loa, pinepine ka hana enameling i ʻelua a ʻekolu manawa ma ka huahana. Akā ʻo ka hemahema, ʻaʻole paʻa ka maikaʻi, maʻalahi loa ka huahana i kahi ʻano haʻahaʻa, a laila e hoʻonui ai i ka pohō i ka mea hoʻohana.

3. ʻO ka ʻaoʻao ʻākau o ka ʻenehana pīpī anu ka pōmaikaʻi nui o ka maikaʻi o ka huahana a me ke kūpaʻa, akā pono ke kaʻina hana enameling lako i loko o ʻeono a ʻehiku mau manawa a i ʻole, no laila ua kiʻekiʻe loa ke kumukūʻai. ʻIke ʻoe, ʻo kēlā me kēia enameling hou, pono e hele ma waena o nā tausani o ke ahi wela kiʻekiʻe, ʻike ʻia ka ʻokoʻa kumukūʻai. ʻO ke ʻano o nā lako enameling ma waho aʻe o ka enamel he maikaʻi a maikaʻi ʻole paha, akā me nā lako enameling i koho ʻia he ʻenehana pīpī he pilina koʻikoʻi. I ka ʻōlelo maʻalahi, ʻo ka pīpī anu ka lako enameling i ka hoʻoluʻu ʻana o ka blank ma ke kūlana mahana o ka lumi o nā hana pīpī pauka, ʻo ka pīpī wela ka lako enameling i loko o ka blank ʻaʻole i hoʻoluʻu piha ʻia e hiki ke hana ma lalo o ke kūlana o nā hana pīpī pauka. ʻO ka pīpī anu e hoʻomaʻamaʻa i nā limahana ma ka billet a me ka porcelain powder grinding a me ka hoʻomaʻemaʻe ʻana o ka hana hou a hou, a me ka pauka porcelain i ka maloʻo kūlohelohe o ka wai, ʻo kēia ʻenehana ma lalo o ka hana o ka papa lahilahi o ka porcelain (ka mānoanoa pono o ka nui), ka helu o nā manawa o ke ahi ʻana, ua kiʻekiʻe ke kumukūʻai; ʻAʻole i hoʻomaʻalili loa ʻia ka pauka wela i loko o nā lako enameling i ka wā hana, ua hoʻomaloʻo ʻia ka enamel i loko o ka wai i loko o ka pauka ma o ke kila hoʻomaʻalili ʻole, no laila ke kaʻina hana wikiwiki a kiʻekiʻe, akā no ka pilikia o ka mahana, hiki ke uhi wale ʻia ka pauka wela no kēlā me kēia hemahema hana i ka wā hana, ʻaʻole hiki ke wili maikaʻi ʻia, no laila ʻoi aku ka mānoanoa o ka papa porcelain o nā lako enameling, ʻoi aku ka liʻiliʻi o ke kumukūʻai.

4. Hiki ke ʻike ʻia ʻo ka ʻenehana pīpī wela, ʻoiai ka hana ʻana o ka papa porcelain wikiwiki a mānoanoa (ʻaʻole ʻoi aku ka mānoanoa o nā lako enamel), akā ma muli o nā hana wela kiʻekiʻe e hana i nā pehu ʻeleʻele, mānoanoa a ʻaʻole like ka porcelain, maʻalahi ka hoʻokahe ʻana i ka ʻāpana holoʻokoʻa o ka ʻili porcelain. ʻOiai ke kumukūʻai kiʻekiʻe o ka pīpī anu, ʻaʻole hiki ke hoʻonui ʻia ka nui o ka hana, akā mai ka manaʻo o ka mea hoʻohana, ua hōʻoia ʻia nā lako hana, ua like ka papa porcelain (e like me nā kūlana honua).