Mukuita kuvhuvhuta kugadzirisa mold, izvo zvinozokanganisa chigadzirwa zvinosanganisira kuvhuvhuta kumanikidza, kuvhuvhuta kumhanya, kuvhuvhuta reshiyo uye kupisa mold tembiricha.
Blow molding mold processing
1. Mukuita kuvhuvhuta, mhepo yakamanikidzwa ine mabasa maviri: imwe ndeyokushandisa kumanikidzwa kwemhepo yakamanikidzwa kuita semi-yakanyungudutswa chubhu billet blow uye kunamatira kumadziro emhangura mold kuti iite chimiro chinodiwa;Chechipiri, inoita basa rekutonhora muDongguan blow molding zvigadzirwa.Kudzvinyirirwa kwemhepo kunoenderana nerudzi rwepurasitiki uye tembiricha yebillet, inowanzodzorwa mu 0.2 ~ 1.0mpa.Kune mapurasitiki ane yakaderera melt viscosity uye nyore deformation (yakadai sePA uye HDPE), tora yakaderera kukosha;Kune mapurasitiki ane yakakwira melt viscosity (yakadai sePC), hunhu hwepamusoro hunotorwa, uye ndizvo zvakaita kukora kwemadziro ebhillet.Kufuridza kudzvanywa kunoenderanawo nehuwandu hwezvigadzirwa, hombe vhoriyamu zvigadzirwa zvinofanirwa kushandisa yakakwira kuvhuvhuta, zvidiki vhoriyamu zvigadzirwa zvinofanirwa kushandisa diki kuvhuvhuta kumanikidza.Iyo yakanyanya kukodzera kuvhuvhuta kudzvanywa kunofanirwa kuve nekukwanisa kuita kuti chitarisiko uye chimiro chechigadzirwa chakajeka mushure mekugadzira.
2, kuvhuvhuta kumhanya kuitira kupfupisa nguva yekuvhuvhuta, kuitira kuti zvikwanise kuchigadzirwa kuti uwane yunifomu gobvu uye kutaridzika kuri nani, zvinodiwa zvekuyerera kwakaderera mumhepo huru yekuyerera, kuve nechokwadi chekuti billet mumhepo. mold cavity inogona kunge yakafanana, kukurumidza kuwedzera, kupfupisa nguva yekutonhora mugomba rekuumbwa, uye inobatsira kuvandudza mashandiro echigadzirwa.Iyo yakaderera airflow velocity inogona zvakare kudzivirira rudzi rweVenduri mhedzisiro mubillet uye kuumbwa kwevacuum yenzvimbo, kuitira kuti billet deflated phenomenon.Izvi zvinogona kuvimbiswa nekushandiswa kwepombi yakakura inoputika.
3, kuvhuvhuta reshiyo kana saizi nemhando yebillet iri yechokwadi, yakakura saizi yechigadzirwa, yakakura iyo billet inovhuvhuta reshiyo, asi iyo yakatetepa ukobvu hwechigadzirwa.Kazhinji zvichienderana nerudzi rwepurasitiki, hunhu, chimiro uye hukuru hwechigadzirwa, uye saizi yebillet kuona saizi yekuvhuvhuta reshiyo.Nekuwedzera kwehuwandu hwekuvhuvhuta, kuwanda kwechigadzirwa kunowedzera kuderera, uye simba uye kuoma kunoderera.Zvinova zvakare zvakaoma kuumba.Kazhinji, chiyero chekuvhuvhuta chinodzorwa mul
2-4) kana zvakadaro.
4. Kupisa kwekuputira kuumba mold kune simba guru pahutano hwezvigadzirwa (kunyanya kutaridzika kwehutano).Kazhinji kugovera tembiricha yekuumbwa kunofanirwa kuve yunifomu, sezvinobvira kuita chigadzirwa yunifomu kutonhora.Iyo tembiricha yekuumbwa inoenderana nerudzi rwepurasitiki, ukobvu uye saizi yezvigadzirwa.Kune marudzi akasiyana epurasitiki, kune mashoma epurasitiki (PC blow molding bhodhoro) mold tembiricha inofanirwa kudzorwa muzvikamu.
Kuita kwekugadzira kwakaratidza kuti tembiricha yekuumbwa yakadzikira, ipapo kurebesa kwepurasitiki pa clip kunoderedzwa, hazvisi nyore kupfutidza, kuitira kuti chigadzirwa chakakora muchikamu ichi, uye zvakaoma kuumba, uye contour uye muenzaniso wechigadzirwa chepamusoro hazvina kujeka;Iyo tembiricha yekuumbwa yakakwira zvakanyanya, nguva yekutonhora inorebeswa, kutenderera kwekugadzira kunowedzerwa, uye kubereka kunodzikira.Panguva ino, kana kutonhora kusina kukwana, kuchaitawo kuti chigadzirwa chigadzirise deformation, shrinkage rate inowedzera, uye kupenya kwepamusoro kunowedzera.Kazhinji kune mapurasitiki ane hombe mamorekuru cheni rigidity, tembiricha yekuumbwa inofanira kunge yakakwira;Kune mapurasitiki ane akakura anochinjika mamorekuru cheni, tembiricha yekuumbwa inofanira kuderedzwa.
Hollow blow molding zvigadzirwa mu mold kutonhora nguva yakareba, chinangwa ndechekuona kuti chigadzirwa chakanyatsotonhorera, dhizaini pasina deformation.Nguva yekutonhora inowanzoenderana nekukora, saizi uye chimiro chepurasitiki, pamwe nerudzi rwepurasitiki.Iko kukora kwemadziro, kunowedzera nguva yekutonhora.Nguva yekutonhodza ye61PE zvigadzirwa zvine hombe chaiyo yekupisa yakakura kupfuura iyo yezvigadzirwa zvePP zvine diki chaiyo yekupisa kwehukobvu hwakafanana.
5. Molding cycle Blow molding production cycle inosanganisira extrusion billet, die closing, cut billet, blowing, deflating, kuvhura mold, kutora zvigadzirwa uye mamwe maitiro.Nheyo yesarudzo iyi yekutenderera ndeyekupfupisa sezvinobvira pasi pemamiriro ekuona kuti chigadzirwa chinogona kuumbwa pasina deformation, kuitira kuti uvandudze hunyanzvi hwekugadzira.
Nguva yekutumira: Aug-31-2022