1. Mɛni ji shwiemɔ
Akɛ dade ni ji nu lɛ woɔ tsɔne ko ni akɛwoɔ tsɔne mli ni ehiɛ su ni sa kɛha fã lɛ mli, ni kɛ́ etswa lɛ, anáa fã ko ni yɔɔ su, elɛɛmɔ kɛ ehiɛ su pɔtɛɛ ko, ni atsɛɔ lɛ casting. Nibii titrii etɛ: aloi, nɔkwɛmɔnɔ, shwiemɔ kɛ hewalɛwoo. Sɛɛnamɔ ni fe fɛɛ: abaanyɛ afee fãi ni mli wawai.
2. Kastimɔ he nitsumɔ
Aje nitsumɔ shishi yɛ 1930 afii lɛ amli kɛtsɔ pneumatic tsɔnei kɛ shikpɔŋ ŋã ni akɛfee lɛ nɔ.
Simenti ŋã henɔ je kpo yɛ 1933
Yɛ afi 1944 lɛ, ŋã ni mli ejɔ ni akɛ resin ni mli wa ewo mli lɛ je kpo
CO2 nu ni mli wa glase ŋã ŋmɔtɔ je kpo yɛ 1947
Yɛ afi 1955 lɛ, ŋã ni akɛwoɔ la mli lɛ je kpo
Yɛ afi 1958 lɛ, furan resin ni akɛshãaa ŋã lɛ je kpo
Yɛ afi 1967 lɛ, ŋã ni hoɔ yɛ simenti mli lɛ je kpo
Yɛ afi 1968 lɛ, nu glase ni akɛ nibii ni haa wala yibii feɔ mlɛo lɛ je kpo
Yɛ afii 50 ni eho lɛ amli lɛ, gbɛi heei ni atsɔɔ nɔ afeɔ tsɔne ni akɛwoɔ tsɔne mli lɛ kɛtsɔ gbɔmɔtsoŋ gbɛi anɔ, tamɔ: magnetic pellet tsɔne, vacuum sealing tsɔne gbɛ, lost foam tsɔne, kɛ ekrokomɛi. Tamɔ centrifugal shwiemɔ, nɔnyɛɛ ni nɔ kwɔ shwiemɔ, nɔnyɛɛ ni baa shi shwiemɔ, nu mli shwiemɔ, kɛ ekrokomɛi.
3. Nibii ni kɔɔ shwɛmɔ he
A. He ni anyɛɔ atsakeɔ kɛ tsakemɔi babaoo. Nibii fɛɛ ni akɛ dade fee. Casting lɛ jeee fã lɛ tsiimɔ, elɛɛmɔ kɛ bɔ ni eyɔɔ lɛ he husu. Etsiimɔ baanyɛ afee gram fioo komɛi kɛyashi tɔn ohai abɔ, gbogbo lɛ ŋmɔlɔ baanyɛ afee kɛjɛ 0.3mm kɛyashi 1m, ni bɔ ni eyɔɔ lɛ baanyɛ afee fãi ni mli wa waa.
B. Nibii ni akɛtsuɔ nii kɛ nibii ni yeɔ ebuaa ni akɛtsuɔ nii lɛ ateŋ babaoo jɛɔ hei srɔtoi ni amɛjara waaa, tamɔ dade ni efite kɛ ŋã.
C. Nibii ni akɛwoɔ tsɔne mli lɛ baanyɛ aha tsɔne ni akɛwoɔ tsɔne mli lɛ mli lɛ afee nɔ ni ja jogbaŋŋ kɛ nɔ ni yɔɔ nɔ lɛ nɔ jogbaŋŋ kɛtsɔ tsɔne ni akɛwoɔ mli lɛ he ŋaa ni etee hiɛ lɛ nɔ, koni anyɛ afo fãi lɛ amli fioo ni afolɔɔɔ mli.
Be ni akɛbaatsu nii: Manyawale-11-2022
