I ka hana ʻana i nā mold injection, nui nā mea e pili ana i ka maikaʻi o ka huahana.
I ka hōʻuluʻulu ʻana, ʻehā mau helu:
1. Ka wela mold
ʻO ka haʻahaʻa haʻahaʻa o ka wela, ʻoi aku ka wikiwiki o ka nalowale ʻana o ka wela ma muli o ka hoʻoheheʻe ʻana i ka wela, ʻoi aku ka haʻahaʻa o ka wela o ka heheʻe, a ʻoi aku ka maikaʻi o ka wai.ʻIke ʻia kēia ʻano i ka wā e hoʻohana ʻia ai ka nui o ka injection haʻahaʻa.
2. Mea palaki
Hoʻoholo ka paʻakikī o nā waiwai plastik i ka paʻakikī o ke kaʻina hana hoʻoheheʻe injection.ʻOkoʻa loa ka hana ʻana o nā mea plastic ma muli o nā ʻano like ʻole, nā hōʻailona like ʻole, nā mea hana like ʻole, a me nā hui like ʻole.Hiki i nā ʻāpana hana like ʻole ke alakaʻi i nā hopena hoʻoheheʻe ʻokoʻa loa.
3. Injection wela
Kahe ka heheʻe i loko o ka lua poʻo maloʻo a nalowale ka wela ma muli o ka hoʻoili wela.I ka manawa like, hana ʻia ka wela ma muli o ka ʻāʻili ʻana.ʻOi aʻe paha kēia wela ma mua o ka wela i nalowale e ka hoʻoheheʻe wela, ma muli o ke ʻano o ka hoʻoheheʻe ʻana.E emi ana ka viscosity o ka heheʻe i ka piʻi ʻana o ka mahana.Ma kēia ala, ʻoi aku ka kiʻekiʻe o ka wela o ka injection, ʻoi aku ka haʻahaʻa o ka viscosity o ka heheʻe, a me ka liʻiliʻi o ke kaomi hoʻopiha pono.I ka manawa like, ua kaupalena ʻia ka mahana injection e ka wela degradation thermal a me ka mahana decomposition.
4. Injection manawa
Hōʻike ʻia ka hopena o ka manawa injection ma ke kaʻina hana hoʻoheheʻe injection i ʻekolu mau ʻano:
(1) Inā hoʻopōkole ʻia ka manawa injection, e piʻi aʻe ka nui o ka shear strain rate i ka heheʻe, a e piʻi pū ke kaomi injection e hoʻopiha ai i ka lua.
(2) E hoʻopōkole i ka manawa injection a hoʻonui i ka nui o ke kānana shear i ka heheʻe.Ma muli o ke ʻano o ka hoʻoheheʻe ʻana o ka plastic melt, e emi ana ka viscosity o ka heheʻe, a ʻo ke kaomi injection e pono ai e hoʻopiha i ka lua.
(3) Hoʻopōkole i ka manawa injection, piʻi ka nui o ka shear strain i ka heheʻe, ʻoi aku ka nui o ka wela o ka shear, a ma ka manawa like e nalowale ka wela ma muli o ka lawe ʻana i ka wela.No laila, ʻoi aku ka kiʻekiʻe o ka mahana o ka hehee a ʻoi aku ka haʻahaʻa o ka viscosity.ʻO ka injection i koi ʻia e hoʻopiha i ka lua ʻo Stress pono e hoʻemi ʻia.ʻO ka hopena i hui pū ʻia o nā kūlana ʻekolu i luna aʻe e ʻike ʻia ke ʻano o ke ʻano "U" i ka pihi o ke kaomi injection e pono ai e hoʻopiha i ka lua.ʻO ia hoʻi, aia kahi manawa injection i ka liʻiliʻi o ke kaomi injection i koi ʻia.
Ka manawa hoʻouna: Dec-11-2023