Amatungo (Polyethylene Terephthalate)
Kuma no guhagarara mbere yo gutesha agaciro
Igomba gukama mbere yo kubumba. Itungo ryumva cyane hydrolysis. Gushyushya umwuka mubi-byumye ni 120-165 c (248-329 f) kumasaha 4. Ibirimo byihuta bigomba kuba munsi ya 0.02%.
Emera Odemade Ird Sisitemu, igihe cyumisha gikeneye gusa 15mins. Bika ingufu zitwara hafi 45-50%. Ibirimo byihuta birashobora kuba 50-70ppm. . Kandi ni gutunganya no kumisha & kotstalling icyarimwe.
Gushonga
265-280 C (509-536 F) kumanota adafite agaciro
275-290 c (527-554 f) kubiciro byikirahure
Ubushyuhe bwa mold
80-120 C (176-248 F); Urwego rwatoranijwe: 100-110 C (212-230 f)
IHURIRO RY'IBIKORWA
30-130 MPA
Umuvuduko wo gutera inshinge
Umuvuduko mwinshi udatera isoni
Imashini ishinyagurira:
Gutera inshinge bikoreshwa cyane mu kuzamura imibumbe. Mubisanzwe, amatungo arashobora gushingwa gusa na mashini yashizweho.
Nibyiza guhitamo mutant akoresheje impeta yihindagurika hejuru, ifite ubuso bunini bwo hejuru no kwambara, hamwe na gahunda yo guhuza ntabwo ari l / d = (15 ~ 20): 1 compression ya 3: 1.
Ibikoresho hamwe na l / d guma muri barriel ndende cyane, kandi ubushyuhe bukabije burashobora gutera gutesha agaciro no kugira ingaruka kubikorwa. Ikigereranyo cyo gutumiza ni gito cyane ku buryo kibyara ubushyuhe buke, biroroshye plastikiye, kandi bifite imikorere mibi. Kurundi ruhande, gusenyuka kwa fibre yikirahure bizaba byinshi kandi imitungo ya fibre izagabanuka. Iyo ikirahuri fibre cyashimangiwe, urukuta rwimbere rwingunguru rwambarwa cyane, kandi ingumba ikozwe mubintu bifatika cyangwa bitondekanye hamwe nibikoresho birwanya.
Kubera ko nozzle ari ngufi, urukuta rwimbere rugomba kuba ubutaka kandi aperture igomba kuba nini ishoboka. Nozzle yamashusho ya hydraulic feri ni nziza. Nozzles igomba kugira ibijyanye no kugenzura ubushyuhe kugirango tumenye neza ko nozzles idakonja no guhagarika. Ariko, ubushyuhe bwomene budakwiye kuba hejuru cyane, bitabaye ibyo bizatera guhunga. Umuvuduko Muke PP ibikoresho bigomba gukoreshwa kandi ingunguru isukurwa mbere yo gutangira.
Inzitizi nyamukuru zishingiye ku matungo
1, ubushyuhe bwa barrale.Ubushyuhe bwamapfundo bwamatungo ni bugufi, kandi ubushyuhe buzagira ingaruka muburyo bwimikorere yibicuruzwa. Niba ubushyuhe bufise cyane, ntabwo ari byiza gusuzugura ibice bya plastike, amenyo, no kubura inenge yibintu; Ibinyuranye nibyo, niba ubushyuhe ari hejuru cyane, bizatera guhindagurika, ibisasu bizatemba, amabara azahinduka umwijima, imbaraga zamashini zizagabanuka, ndetse no gutesha agaciro. Mubisanzwe, ubushyuhe bwa barriel bugenzurwa kuri 240 kugeza 280 ° C, hamwe na fibre yikirahure yashimangiye 250 kugeza 290 ° C. Ubushyuhe bwa Nozzle ntibugomba kurenga 300 ° mubisanzwe
Ubushyuhe bwa 2, ubushyuhe bwa Mold.Ubushyuhe bwa Mold bugira ingaruka ku buryo bukonje kandi bukagira ishonga, inyamanswa iratandukanye, kandi imitungo y'ibice bya plastike nayo iratandukanye kandi. Mubisanzwe, ubushyuhe bwa mold bugenzurwa kuri 100 kugeza 140 ° C. Indangagaciro nto zirasabwa mugihe ugize ibice byumye. Mugihe ukora ibice bya plastiki bikabije, birasabwa kugira agaciro gakomeye.
3. UMUHANGO WITANGAZA.Amatungo ashonga ni amazi kandi byoroshye gukora. Mubisanzwe, igitutu giciriritse gikoreshwa, igitutu ni 80 kugeza 140 m 140 cyashimangiwe itungo rya fibre rishingiye ku icumba rya 90 kugeza 150. Umuvuduko wo gutera inshinge ugomba kugenwa usuzume vicosity ya matungo, ubwoko nubunini bwuzuye, imiterere nubunini bwimikorere ya plastiki, n'ubushyuhe bwa plastique, n'ubwoko bw'imashini ishingwamo.
Ni bangahe uzi ku bijyanye no gutunganya plastike y'amatungo?
1, gutunganya plastiki
Kubera ko amatungo magicolecule arimo urufatiro rwa lipide kandi ufite hydhiphileile runaka, ibice byumva amazi mubushyuhe burebure. Iyo ibintu byubushuhe birenze imipaka, uburemere bwa molefular bwinyamanswa igabanuka, kandi ibicuruzwa bifite amabara kandi bikaboroka. Muri iki gihe, ibikoresho bigomba gukama mbere yo gutunganya. Ubushyuhe bwumuma ni amasaha 150 4, mubisanzwe amasaha 170 kugeza kuri 4. Uburyo bwo mu kirere bukoreshwa mugupima niba ibikoresho byumye rwose.
2. Guhitamo imashini itemba
Amatungo afite ingingo ngufi hamwe nuburyo bwo gushonga cyane, birakenewe rero guhitamo inshinge hamwe nurwego runini rwo kugenzura ubushyuhe no kwishyuza mugihe cya parike, kandi uburemere nyabwo bwibicuruzwa ntibushobora kuba munsi ya 2/3 cyuburemere bwayo. Ingano yo gutera imashini. Hashingiwe kuri ibyo bisabwa, mu myaka yashize, Ramada yakoze urukurikirane rw'amatungo mato kandi aciriritse. Imbaraga zatoranijwe zatoranijwe zirenze 6300t / m2.
3. Ububiko hamwe niremu
POST preform isanzwe ikorwa nubukonje bushyushye. Ingabo yubushyuhe hagati yubutaka hamwe na imashini ishinyagurira irakemuwe neza hamwe nubunini bwa mm 12, kandi ingabo nini zirashobora kwihanganira igitutu kinini. Icyambu kibura kigomba kuba gihagije kugirango wirinde kwiyongera cyangwa gukata, ariko ubujyakuzimu bwicyambu gishimishije mubisanzwe ntabwo kirenga mm 0,13.
4. Ubushyuhe bwo gusangira
Gupima birashobora gukorwa nuburyo bwindege. Kuri 270-295 ° C, urwego rwo kuzamura GF-Pet rushobora gushishikarizwa 290-315 ° C.
5. Umuvuduko wo gutera inshinge
Umuvuduko rusange wihuta urihuta cyane, irinda gukira hakiri kare inshinge. Ariko kwiyiriza ubusa, igipimo kinini cyo kumashanyarazi gituma ibintu bivunika. Popup izaba yuzuye mumasegonda 4.
6, umuvuduko winyuma
Hasi neza, kugirango utambara. Muri rusange bitarenze 100bar.
Igihe cyagenwe: Feb-24-2022