Rotational molding process inozivikanwawo se rotary molding, rotary casting molding.Iyo isimbi yekuumba nzira ye thermoplastic.
Rotational molding inzira ine-zvinangwa zvakawanda yekugadzira akasiyana magomba epurasitiki zvikamu.Rotational molding process inoshandisa kudziyisa uye kutenderera pamwe nematemo maviri kugadzira buri rimwechete.Purasitiki yakanyungudutswa inopinzwa muforoma inotenderera, uye simba repakati rinomanikidza purasitiki yakanyungudutswa kuti inamire kumadziro emukati memuvhu.
Kureva kuti, hupfu kana paste zvinhu zvinopinzwa muforoma kutanga, uye zvinhu zvacho zvakavharwa zvakaenzana negomba rekuumbwa uye zvinonyungudutswa negiravhiti rayo uye simba recentrifugal kuburikidza nekupisa mold nekukunguruka uye kutenderera munzira yakatwasuka uye yakatwasuka. , uyezve demoulded kuwana maburi zvigadzirwa mushure kutonhora.Nekuti kumhanya kwekutenderera kwekutenderera kuumbwa hakuna kukwirira, midziyo yacho iri nyore, chigadzirwa hachina kushushikana kwemukati, uye haisi nyore kukanganisa uye kusag.Pakutanga, yainyanya kushandiswa kuPVC paste kugadzirwa kwepurasitiki yematoyi, mabhora erabha, mabhodhoro uye zvimwe zvigadzirwa zvidiki.Munguva pfupi yapfuura, inoshandiswawo zvakanyanya muzvigadzirwa zvakakura.Marezeni anoshandiswa anosanganisira polyamide, polyethylene, modified polystyrene polycarbonate, nezvimwe.
Izvo zvakafanana nekukanda kutenderera, asi iyo inoshandiswa haisi mvura, asi sintered yakaoma poda.Maitirwo acho ndeekuisa hupfu muforoma uye kuita kuti itenderere ichitenderedza matemo maviri anoenderana perpendicular.Chigadzirwa chine gomba chinogona kuwanikwa kubva muforoma nekudziya uye kusanganisa zvakafanana pamadziro emukati memuvhu, uyezve kutonhora.
Iyo inozivikanwawo se rotary molding kana rotary molding.Powder plastiki (yakadai seLLDPE) inowedzerwa kune yakavharwa mold.Iyo mold inopisa ichitenderera.Ipurasitiki inonyunguduka uye inonamatira kumusoro kwegomba re mold zvakaenzana.Mushure mekunge mold yatonhodzwa, zvigadzirwa zvepurasitiki zvisina maburi zvine chimiro chakafanana negomba remuvhu zvinogona kuwanikwa, senge zvikepe, mabhokisi, mbiya, mabheseni, magaba, etc. Inowanzo sanganisira kudyisa, kuisa chisimbiso chekuumbwa, kupisa, kutonhora, demoulding, kuchenesa mold uye mamwe matanho ekutanga.Iyi nzira ine zvakanakira shrinkage diki, kudzora kuri nyore kwemadziro ukobvu uye mutengo wakaderera wekuumbwa, asi yakaderera kugadzirwa kwekuita.
Iwo makuru maficha ekutenderera kuumbwa maitiro ndeaya anotevera:
1.Mutengo wekutenderera kuumbwa kwakaderera - kune zvigadzirwa zvehukuru hwakafanana, mari yekutenderera inotenderera inenge 1 / 3 kusvika 1 / 4 yeiyo yekuputira kuputika uye jekiseni molding, iyo yakakodzera kuumba mapurasitiki makuru epurasitiki.
2.Rotational molding product edge simba rakanaka - rotational molding inogona kubudirira chigadzirwa kumucheto ukobvu kupfuura 5 mm, kugadzirisa zvachose dambudziko rehollow chigadzirwa mupendero mutete.
3.Rotational molding inogona kuisa inlays dzakasiyana-siyana.
4.Chimiro chekutenderera kwekugadzira zvigadzirwa zvinogona kunge zvakanyanya kuoma, uye hupamhi hunogona kudarika 5 mm.
5.Rotational molding inogona kugadzira zvigadzirwa zvakavharwa zvachose.
6.Rotational molding zvigadzirwa zvinogona kuzadzwa nezvinhu zvinoputika kuti zvibudirire kupisa kupisa.
7.Ukobvu hwemadziro ezvigadzirwa zvinotenderera zvekugadzira zvinogona kugadziriswa zvakasununguka (kupfuura 2mm) pasina kugadzirisa mold.
Nguva yekutumira: Jul-14-2021