Iyo misimboti yekugadzira ye hollow blow molding michina uye nzira yayo yekuumba Iyo inonzi blow molding muchina inonzi zvakare hollow blow molding muchina.Iyo plastiki inonyungudutswa uye yakawanda yakawedzera mu screw extruder, uye yobva yaumbwa kuburikidza nemuromo firimu, uye yozotonhodzwa nemhepo mhete, yobva yafuridzirwa muforoma.Nzira yekugadzira mapurasitiki anokurumidza kukura.Iyo tubular yepurasitiki parison inowanikwa neextrusion kana jekiseni kuumbwa kwe thermoplastic resin inoiswa mune yakatsemurwa mold ichipisa (kana ichipisa kune yakapfava mamiriro), uye mweya wakatsikirirwa unopinzwa mupuriso pakarepo mushure mekuvhara mold kuvhuvhuta yepurasitiki parison. .Iyo inowedzera uye inonamira padhuze kumadziro emukati me mold, uye mushure mekutonhora uye kudhiza, akasiyana maburi zvigadzirwa zvinowanikwa.
Iyo blow molding machine/ process yakatanga kushandiswa kugadzira low density polyethylene vials muHondo Yenyika II.Mukupera kwema1950, nekuzvarwa kwe-high-density polyethylene uye kugadzirwa kwemichina yekuputira inoputika, tekinoroji yemichina yekuputira yakashandiswa zvakanyanya.Huwandu hwemidziyo isina maburi hunogona kusvika kuzviuru zvemarita, uye kumwe kugadzira kwakadzorwa nemakomputa.Mapurasitiki akakodzera kuumbwa nekuputira anosanganisira polyethylene, polyvinyl chloride, polypropylene, polyester, nezvimwewo, uye midziyo yakawanikwa isina maburi inoshandiswa zvakanyanya semidziyo yekurongedza maindasitiri.
Nhanganyaya kune nzira yekuumba ye hollow blow molding:
Nekuda kwekusiyana kwezvinhu zvakasvibirira, zvinodikanwa zvekugadzirisa, kuburitsa uye mutengo, nzira dzakasiyana dzekuumba nzira dzine mabhenefiti akasiyana mukugadzirisa zvigadzirwa zvakasiyana.
Iko kuvhuvhuta kwezvigadzirwa zvisina hollow kunosanganisira nzira nhatu huru:
1. Extrusion blow molding: inonyanya kushandiswa kune isingatsigirwe parison processing;
2. Injection blow molding: inonyanya kushandiswa parison processing inotsigirwa nesimbi core;
3. Stretch blow molding: kusanganisira extrusion-stretch-blow molding, jekiseni-stretch-blow molding nzira mbiri, inogona kugadzirisa biaxially oriented products, inoderedza zvikuru mari yekugadzira uye kuvandudza kushanda kwechigadzirwa.
Pamusoro pezvo, kune akawanda-layer blow molding, compression blow molding, dip coating blowing molding, furo blow molding, three-dimensional blow molding, etc. Asi 75% yezvigadzirwa zvekufuridza ndeye extrusion blow molding, 24% ijekiseni inovhuvhuta. , uye 1% ndezvimwe kuumba kuvhuvhuta;pakati pezvese zvigadzirwa zvekuumba, 75% ndeye biaxially yakatarisana zvigadzirwa.Zvakanakira zveextrusion blow molding ndeyekukwira kwekugadzira, mutengo wakaderera wemidziyo, kusarudzwa kwakakura kwema mold uye muchina, uye zvisungo ndezviyero zvezvirasha zvakakura, kutadza kudzokorodza uye kushandiswa kwezvakaraswa, kukora chigadzirwa kutonga, uye kupararira kwezvinhu.Mushure maizvozvi, zvakakosha kuita basa rekucheka.Chakanakira jekiseni blow molding ndechekuti hapana tsvina mukugadzirisa, uye ukobvu hwemadziro echigadzirwa uye kupararira kwezvinhu zvinogona kudzorwa zvakanaka.Izvo zvakashata ndezvekuti midziyo yekuumba inodhura uye kune imwe nhanho yakakodzera chete kune zvidiki-zvakaumbwa zvigadzirwa.
Mamiriro ekuita ekuumbwa kwemhepo kunoda kuti mweya wakatsikirirwa unopisa parison muforoma unofanirwa kuve wakachena.Mhepo yemhepo yekuumba jekiseni inoputika ndeye 0.55 kusvika 1 MPa;kudzvanywa kweextrusion blow molding ndeye 0.2l kusvika 0.62 MPa, uye kudzvanywa kwekutambanudza kuvhuvhuta kunodiwa kuti kuve kwakakwira se4 MPa.Mukusimba kwemapurasitiki, kudzvinyirira kwakaderera kunoita kuti kushushikana kwemukati kwechigadzirwa kuve kwakaderera, kupararira kwekushushikana kunowedzera yunifomu, uye kushushikana kwakaderera kunogona kuvandudza kusimba, kukanganisa, kukotama uye zvimwe zvinhu zvechigadzirwa.
Nguva yekutumira: Nov-21-2023