Blow molding inzira yekugadzira chubhu yakanyungudutswa (inonzi parison kana preform) ye thermoplastic zvinhu (polymer kana resin) nekuisa parison kana preform mukati megomba rekuumbwa nekuputira chubhu nemhepo yakamanikidzwa, kutora chimiro che mhango uye tonhorera chikamu usati wabvisa kubva muforoma.
Chero hollow thermoplastic chikamu chinogona kuvhuvhuta.
Zvikamu hazvina kungogumira kumabhodhoro, uko kune imwe kuvhurwa uye kazhinji idiki mudhayamita kana saizi kupfuura zviyero zvemuviri wese. Aya ndiwo mamwe maumbirwo anonyanya kushandiswa mukurongedza kwevatengi, zvisinei kune mamwe marudzi akajairwa ezvikamu zvakaumbwa, kusanganisira, asi zvisingagumire ku:
- Industrial midziyo yakawanda
- Lawn, gadheni uye zvinhu zvemumba
- Zvishandiso zvekurapa uye zvikamu, matoyi
- Kuvaka indasitiri zvigadzirwa
- Motokari-pasi pehodhi zvikamu
- Zvishandiso zvemidziyo
Blow Molding Manufacturing Processs
Kune marudzi matatu makuru ekuumba blower:
- Extrusion blow molding
- Jekiseni blow molding
- Jekiseni kutambanudza kuvhuvhuta kuumba
Misiyano mikuru pakati pavo ndiyo nzira yekugadzira jeri; ingave neextrusion kana jekiseni molding, ukuru hweparison uye nzira yekufamba pakati peparison uye kuputika molds; ingave yakamira, shuttling, linear kana rotary.
MuExtrusion Blow Molding-(EBM) iyo polima inonyungudutswa uye iyo yakasimba yakanyungudutswa inonyungudutswa kuburikidza nefa kuti iite hollow chubhu kana parison. Mahafu maviri emuumbi wakatonhodzwa anobva avharwa akatenderedza jeri, mweya wakamanikidzwa unounzwa kuburikidza nepini kana tsono, uchiipinza muchimiro cheforoma, nokudaro ichigadzira chikamu chisina mhango. Mushure mokunge plastiki inopisa yakanyoroveswa zvakakwana, mold inovhurwa uye chikamu chinobviswa.
MuEBM pane nzira mbiri dzekutanga dzeextrusion, Inoenderera uye Inopindirana. Mukuenderera mberi, jeri rinosimudzwa nguva dzose uye mold inofamba ichienda nekure kure nechechi. In Intermittent, plastiki inounganidzwa neextruder mukamuri, yobva yamanikidza kuburikidza nefa kuti igadzire jeri. Iyo mold inowanzomira pasi kana kutenderedza extruder.
Mienzaniso yeInoenderera mberi Maitiro ndeye Inoenderera Extrusion Shuttle michina uye Rotary Wheel michina. Inopindirana extrusion michina inogona Kudzorera Screw kana Accumulator Head. Zvinhu zvakasiyana-siyana zvinotariswa pakusarudza pakati pemaitiro uye saizi kana mamodheru aripo.
Mienzaniso yezvikamu zvakagadzirwa neEBM maitiro zvinosanganisira akawanda maburi zvigadzirwa, senge mabhodhoro, zvikamu zveindasitiri, matoyi, mota, zvinhu zvemidziyo uye kurongedza kwemaindasitiri.
Nekuremekedza iyo Injection Blow Systems - (IBS) maitiro, iyo polymer inoumbwa jekiseni pamusimboti mukati megomba kuti igadzire chubhu isina mhango inonzi preform. Mapreforms anotenderera pane core rod kuenda ku blow mold kana molds pachiteshi chekufuridza kuti akwidzwe nekutonhodzwa. Maitiro aya anowanzo shandiswa kugadzira mabhodhoro madiki, kazhinji 16oz/500ml kana kushomeka pazvinobuda zvakanyanya. Maitiro acho akakamurwa kuita matanho matatu: jekiseni, kuvhuvhuta uye ejection, zvese zvinoitwa mumuchina wakabatanidzwa. Zvikamu zvinobuda zvine zviyero zvakapedzwa uye zvinokwanisa kubata kushivirira kwakasimba-isina zvimwe zvinhu mukugadzira iyo inoshanda zvakanyanya.
Mienzaniso yezvikamu zveIBS mabhodhoro emishonga, zvikamu zvekurapa, uye zvekuzora uye zvimwe zvigadzirwa zvevatengi.
Injection Stretch Blow Molding- (ISBM) iyo Injection Stretch Blow Molding- (ISBM) maitiro akafanana neiyo IBS maitiro anotsanangurwa pamusoro, pakuti preform inoumbwa jekiseni. Iyo yakaumbwa preform inozounzwa kune inorova mold mune yakagadziriswa mamiriro, asi isati yaputika kwekupedzisira kwechimiro, preform inotambanudzwa mukureba pamwe neradially. Iwo akajairika mapolymers anoshandiswa PET uye PP, ane hunhu hwemuviri hunosimudzirwa neyakatambanudzwa chikamu chemaitiro. Uku kutambanudza kunopa chikamu chekupedzisira simba rakagadziridzwa uye zvipingamupinyi zvivakwa pazviremu zvakareruka uye zviri nani madziro ukobvu kupfuura IBS kana EBM-asi, kwete pasina mimwe miganhu yakadai semidziyo inobatwa, nezvimwewo. ISBM inogona kukamurwa kuitaImwe DanhouyeMatanho maviriprocess.
MuImwe Danhoprocess zvese preform kugadzira uye kufuridza bhodhoro kunoitwa mumuchina mumwe chete. Izvi zvinogona kuitwa mumachina matatu kana mana echiteshi, (Injection, Conditioning, Blowing and Ejection). Iyi maitiro uye ine hukama michina inogona kubata madiki kusvika akakwira mavhoriyamu akasiyana masimiro uye saizi mabhodhoro.
MuMatanho mavirigadzira iyo purasitiki inotanga kuumbwa kuita preform uchishandisa jekiseni rekugadzira muchina wakapatsanurwa kubva kune inorova molder. Izvi zvinogadzirwa nemitsipa yemabhodhoro, kusanganisira tambo pamucheto wakavhurika weiyo yakavharwa yekupedzisira hollow preform. Aya mapreforms anotonhodzwa, anochengetwa, uye anodyiswa gare gare mumuchina wekupisa-kupisa kuvhuvhuta. MuNhanho mbiri Reheat Blow process, mapreforms anodziya (kazhinji anoshandisa infrared heaters) pamusoro pegirazi ravo rekuchinja tembiricha, obva atambanudzwa nekufuridzirwa achishandisa mhepo yekudzvanya mumhepo yekuvhuvhuta.
Iwo Matanho Maviri maitiro anonyatso kuenderana neakanyanya mavhoriyamu emidziyo, 1 litre uye pasi, ine inochengetedza kushandiswa kweresin inopa simba rakakura, gasi chinodzivirira uye zvimwe zvinhu.