ʻO ka hoʻoheheʻe ʻana ʻo ia ke kaʻina hana o ka hoʻoheheʻe ʻia (i kapa ʻia ʻo ka parison a i ʻole preform) o nā mea thermoplastic (polymer a resin) a kau i ka parison a i ʻole preform i loko o kahi lua mold a hoʻoulu i ka paipu me ka ea paʻa, e lawe i ke ʻano o ka lua a hoʻolili i ka ʻāpana ma mua o ka wehe ʻana mai ka ʻōpala.
Hiki ke puhi ʻia nā ʻāpana thermoplastic āpau.
ʻAʻole i kaupalena ʻia nā ʻāpana i nā ʻōmole, kahi hoʻokahi puka a ʻoi aku ka liʻiliʻi o ke anawaena a i ʻole ka nui ma mua o ka nui o ke kino holoʻokoʻa. ʻO kēia kekahi o nā ʻano mea maʻamau i hoʻohana ʻia i loko o ka ʻeke mea kūʻai aku, akā naʻe aia kekahi mau ʻano maʻamau o nā ʻāpana i hoʻoheheʻe ʻia, me, akā ʻaʻole i kaupalena ʻia i:
- ʻOihana nui pahu
- Lawn, māla a me nā mea hale
- Nā lako lapaʻau a me nā ʻāpana, nā mea pāʻani
- Nā huahana hana hale
- Automotive-ma lalo o nā ʻāpana hood
- Nā ʻāpana mea hana
Nā Kaʻina Hana Hana Puhi
ʻEkolu mau ʻano nui o ka puhi ʻana:
- ʻO ka hoʻoheheʻe ʻana i ka puhi
- ʻO ka hoʻoheheʻe ʻana
- ʻO ka hoʻoheheʻe ʻia ʻana o ka puhi ʻana
ʻO ka ʻokoʻa nui ma waena o lākou ke ʻano o ka hana ʻana i ka parison; ma ka extrusion a i ʻole ka hoʻoheheʻe ʻia ʻana, ka nui o ka parison a me ke ʻano o ka neʻe ʻana ma waena o ka parison a me nā mold puhi; ʻo ka paʻa, ka hoʻopaʻa ʻana, ka laina laina a i ʻole ka rotary.
I ka Extrusion Blow Molding-(EBM) ua hoʻoheheʻe ʻia ka polymer a hoʻoheheʻe ʻia ka hoʻoheheʻe paʻa paʻa ma o ka make e hana i kahi paipu a i ʻole parison. Hoʻopili ʻia nā ʻāpana ʻelua o ka ʻōpala maloʻo a puni ka parison, hoʻokomo ʻia ka ea i kaomi ʻia ma o ka pine a i ʻole ka nila, e hoʻoulu ʻia i loko o ke ʻano o ka poʻi, pēlā e hana ai i kahi ʻāpana. Ma hope o ka maʻalili ʻana o ka plastik wela, wehe ʻia ka ʻōpala a wehe ʻia ka ʻāpana.
Ma EBM aia ʻelua mau ʻano kumu o ka extrusion, Continuous a me Intermittent. I ka hoʻomau, hoʻokuʻu ʻia ka parison i nā manawa a pau a neʻe ka poʻi mai ka parison. Ma Intermittent, hoʻopili ʻia ka plastic e ka extruder i loko o kahi keʻena, a laila hoʻoikaika i ka make e hana i ka parison. Paʻa mau nā ʻōpala ma lalo a a puni ka extruder.
ʻO nā laʻana o ke kaʻina hana mau ʻo ia nā mīkini hoʻokuʻu hoʻomau mau a me nā mīkini Rotary Wheel. Hiki i nā mīkini extrusion intermittent ke Reciprocating Screw a i ʻole Accumulator Head. Manaʻo ʻia nā kumu like ʻole i ke koho ʻana ma waena o nā kaʻina hana a me ka nui a i ʻole nā hiʻohiʻona i loaʻa.
ʻO nā hiʻohiʻona o nā ʻāpana i hana ʻia e ke kaʻina EBM he nui nā huahana hollow, e like me nā ʻōmole, nā ʻāpana ʻenehana, nā mea pāʻani, nā kaʻa, nā mea hana a me nā ʻāpana ʻenehana.
E pili ana i ke kaʻina hana Injection Blow Systems - (IBS), ua hoʻoheheʻe ʻia ka polymer ma luna o kahi kumu i loko o kahi lua e hana ai i kahi paipu puka i kapa ʻia he preform. Hoʻololi nā preforms ma luna o ke koʻokoʻo kumu a hiki i ka ʻōpala puhi a i ʻole nā molds ma ke kahua puhi e hoʻonui a hoʻomaha. Hoʻohana pinepine ʻia kēia kaʻina hana no ka hana ʻana i nā hue liʻiliʻi, maʻamau ka 16oz/500ml a i ʻole ka liʻiliʻi ma nā huahana kiʻekiʻe loa. Hoʻokaʻawale ʻia ke kaʻina hana i ʻekolu mau ʻanuʻu: injection, blowing and ejection, hana ʻia i loko o kahi mīkini hoʻohui. Puka mai nā ʻāpana me nā ana i hoʻopau pono ʻia a hiki ke hoʻopaʻa paʻa i ka hoʻomanawanui - me ka ʻole o nā mea ʻē aʻe i ka hoʻokumu ʻana he mea maikaʻi loa ia.
ʻO nā hiʻohiʻona o nā ʻāpana IBS he ʻōmole lāʻau lapaʻau, ʻāpana lāʻau lapaʻau, a me nā pūʻolo huahana mea kūʻai aku.
Injection Stretch Blow Molding- (ISBM) ua like ke kaʻina hana Injection Stretch Blow Molding- (ISBM) me ke kaʻina hana IBS i hōʻike ʻia ma luna, ʻo ia ka preform i hoʻoheheʻe ʻia. Hōʻike ʻia ka preform i hoʻoheheʻe ʻia i ka mold puhi ma kahi kūlana kūlana, akā ma mua o ka puhi hope ʻana o ke ʻano, hoʻolōʻihi ʻia ka preform i ka lōʻihi a me ka radially. ʻO nā polymers maʻamau i hoʻohana ʻia ʻo PET a me PP, loaʻa nā ʻano kino i hoʻonui ʻia e ka ʻāpana kiko o ka hana. Hāʻawi kēia hoʻolōʻihi i ka ʻāpana hope i hoʻomaikaʻi ʻia ka ikaika a me nā waiwai pale ma nā kaupaona ʻoi aku ka māmā a me ka mānoanoa o ka pā ʻoi aku ka maikaʻi ma mua o IBS a i ʻole EBM—akā, ʻaʻole me ka ʻole o kekahi mau palena e like me nā ipu i mālama ʻia, etc.. Hiki ke māhele ʻia ka ISBM i kaHoʻokahi ʻanuʻuaʻElua ʻanuʻukaʻina hana.
I kaHoʻokahi ʻanuʻuhana ʻia ka hana preform a me ka puhi ʻana i ka hue ma ka mīkini hoʻokahi. Hiki ke hana i kēia ma 3 a i ʻole 4 mau mīkini kikowaena, (Injection, Conditioning, Blowing and Ejection). Hiki i kēia kaʻina hana a me nā mea hana pili ke lawelawe i nā puke liʻiliʻi a kiʻekiʻe o nā ʻano like ʻole a me nā ʻōmole nui.
I kaʻElua ʻanuʻukaʻina hana i hoʻoheheʻe mua ʻia ka plastic i loko o ka preform me ka hoʻohana ʻana i ka mīkini hoʻoheheʻe injection i hoʻokaʻawale ʻia mai ka mea puhi. Hana ʻia kēia me nā ʻāʻī o nā ʻōmole, me nā kaula ma ka ʻaoʻao ākea o ka hollow preform pani. Hoʻomaʻalili ʻia kēia mau preforms, mālama ʻia, a hānai ʻia ma hope i loko o ka mīkini hoʻoheheʻe ʻia. Ma ke kaʻina hana ʻelua ʻanuʻu Reheat Blow, ua hoʻomehana ʻia nā preforms (maʻamau me ka hoʻohana ʻana i nā mea hoʻomehana infrared) ma luna o ko lākou aniani hoʻololi wela, a laila kikoo ʻia a puhi ʻia me ka hoʻohana ʻana i ka ea kiʻekiʻe i loko o nā mold puhi.
ʻOi aku ka maikaʻi o ke kaʻina hana ʻelua i nā pahu kiʻekiʻe loa, 1 lita a ma lalo, me ka hoʻohana conservative loa o ka resin e hāʻawi ana i ka ikaika nui, ka pale kinoea a me nā hiʻohiʻona ʻē aʻe.