he aha te mea PVC Plastisol Vinyl Rotocasting ?
PVC Plastisol Ko Vinyl Rotocasting he mahi toi mo te hanga taonga taakaro. Anei he whakataki taipitopito:
Origin
I te tau 1924, i hangaia te miihini pvc plastisol vinyl rotocasting (ROTOCAST) tuatahi o te ao i Tiamana, a, ko te taakaro tuatahi, he "rapeti tiakarete", i hua pai. I tohu tenei i te timatanga o te wahanga hou mo te hanga taonga taakaro me te pvc plastisol vinyl rotocasting process.
Tikanga Tukatuka
Tuatahi, ka whakakikoruatia he paparanga parahi angiangi ki runga i te mata o te paparanga tauira ma te paparanga hiko hei hanga i te pokepokea whakarewa ngawari. Na, PVC ka ringihia te plastisol ki te pokepokea ai. Ka tukuna te pokepoke ki roto i te oumu vinyl rotocasting, ka wera ki te 180 ℃-280 ℃ ka huri tonu. I raro i te kaha o te kaha, ka piri te whakapiri ki te pakitara o roto o te pokepokea ai. I muri i te whakamahana, ka whakatuwherahia te pokepoke ki te tango i te hua, ka whakamahia te nuinga mo te whakaputa i nga mea kua whakarewahia.
Hanga Whakatika
He uaua te hanga maaka matua o te rotocasting vinyl tuku iho. Tuatahi, ka whakairohia he tauira uku ma te ringa, ma te miihini ranei, katahi ka whakaputahia he tauira ware pi i runga i te tauira uku. Na te ahua o te 3% te whakaheke i te wa e huri ana te pokepokea ai, me whakanuia te rahi o te tauira wax. Ko te tauira ware pi ka tuu ki roto i te taika whakakikorua kia whiwhi i te pokepokea rangatira parahi na roto i te tauhohenga hiko, a ka kapea te pokepokea ai mai i te pokepokea matua.
Āhuatanga hua
PVC Ko nga hua o te plastisol vinyl rotocasting he ngawari me te rapa, kaore he raina wehenga, he maamaa te taumaha, he ahua puhoi, kaore i te ngawari ki te pakaru ina taka. Heoi, na te ngoikore o te wai o PVC whakapiri, kaore e taea te whakamahi ki te hanga hua tino taipitopito me te uaua. I tua atu, he maha nga mahi a-ringa i roto i te mahi whakaputa, e arai ana ki te tino koretake o nga hua kua oti, me te nui o te reeti whakakore.
Ngā Āpure Taupānga
Ka whakamahia te nuinga ki te hanga i nga momo taakaro tare, penei i nga tare e maka ana i te vinyl me nga taonga taakaro o raro o te moana. Ka whakamahia ano hoki i roto i te hanga o etahi taonga taakaro me nga whakaahua.
