Dongguan Enuo mold Co., Ltd idivi reHong Kong BHD Boka, dhizaini yepurasitiki yekuumbwa uye kugadzira ndiro bhizinesi ravo guru.Uyezve, zvikamu zvesimbi CNC machining, prototype zvigadzirwa R&D, yekuongorora gadziriso / geji R&D, zvigadzirwa zvepurasitiki zvekuumba, kupfapfaidza uye kusangana zvakare zviitwe.
Iyo mold ine zvikamu zviviri zvakakosha, iyo jekiseni mold (A ndiro) uye ejector mold (B ndiro).Zviumbwa izvi zvinonziwo moulder uye moulder.Plastic resin inopinda mumold kuburikidza ne sprue kana gedhi mune jekiseni mold;iyo sprue bushing ndeyekunamira zvakasimba pamuromo wejekiseni remushonga wemushini wekuumba uye kubvumira plastiki yakanyungudutswa kuti iyerere kubva mudhiramu ichienda muforoma, inozivikanwawo semhango.Iyo sprue bushing inotungamira purasitiki yakanyungudutswa kugomba img kuburikidza nemachani anogadzirwa muzviso zveA uye B mahwendefa.Nzira idzi dzinobvumira plastiki kuti imhanye padziri, saka dzinonzi vamhanyi.Plastiki yakanyungudutswa inoyerera nemumhanyi uye inopinda gedhi rimwe chete kana anopfuura akasarudzika uye mugomba geometry kuti igadzire chikamu chinodiwa.
Kunyange zvazvo kufungidzira vanhu vepakutanga vekuNorth America panguva yekubatana kweEurope kwakaoma, kuedza kwakaitwa mukutanga kwezana remakore rechimakumi maviri naJames Mooney vachishandisa zvinyorwa zvezvakaitika kare kufungidzira vagari vemo kuchamhembe kweMexico muna 1600. Munguva pfupi yapfuura makore, Douglas H. Ubelaker weSmithsonian Institution akavandudza manhamba aya.Nepo Ubelaker akafungidzira kuti kwaive nehuwandu hwe92,916 kumaodzanyemba kweAtlantic nyika uye huwandu hwevanhu ve473,616 muGulf states, vadzidzi vazhinji vanotora huwandu hwakaderera.
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