Iriburiro: Nka imwe muri plastiki rusange ikoreshwa cyane, PP irashobora kugaragara ahantu hose mubuzima bwa buri munsi. Ifite isuku irenze pc isanzwe. Nubwo idafite ibara ryinshi rya ABS, PP ifite ubuziranenge no gutanga amabara. Mu nganda, ibikoresho bya PP bikoreshwa kenshi mubikoresho byo gupakira nkaamacupa ya plastiki, agacupa, amacupa ya cream, n'ibindiURUPAPURO RBkandi asangiwe nuruhererekane rwo gutanga ibisobanuro:
Izina ryimiti: Polypropilene
Izina ry'icyongereza: Polypropylene (bita PP)
PP ni polymer ya kristu. Muri plastiki zikunze gukoreshwa, PP niyo yoroshye, ifite ubucucike bwa 0,91g / cm3 gusa (munsi y'amazi). Mubintu rusange-bigamije plastiki, PP ifite imbaraga zo kurwanya ubushyuhe bwiza. Ubushyuhe bwo kugoreka ubushyuhe ni 80-100 ° C kandi birashobora gutekwa mumazi abira. PP ifite impungenge nziza zo guhangana nubuzima bwumunaniro mwinshi. Bikunze kumenyekana nka "plastike 100%". Imikorere yuzuye ya PP iruta iy'ibikoresho bya PE. Ibicuruzwa bya PP bifite uburemere bworoshye, gukomera no kurwanya imiti myiza.
Ibibi bya PP: uburinganire buke buke, ubukana budahagije, guhangana nikirere kibi, byoroshye kubyara "kwangirika kwumuringa", bifite ibintu nyuma yo kugabanuka, nyuma yo kumeneka, biroroshye gusaza, gucika intege, kandi byoroshye guhinduka.
01
Ibiranga
1) Ibikoresho bya kristaline bifite hygroscopique nkeya kandi bikunda gushonga kuvunika, kandi biroroshye kubora mugihe kirekire cyo guhura nicyuma gishyushye.
2) Amazi meza ni meza, ariko kugabanuka kwingirakamaro no kugabanuka ni binini, kandi kugabanuka kwimyenge, amenyo, no guhindura ibintu biroroshye kubaho.
3) Umuvuduko wo gukonjesha urihuta, sisitemu yo gusuka hamwe na sisitemu yo gukonjesha bigomba gukwirakwiza buhoro buhoro ubushyuhe, kandi ukitondera kugenzura ubushyuhe bwubushyuhe. Ubushyuhe bwibintu biroroshye kwerekezwa kubushyuhe buke n'umuvuduko mwinshi. Iyo ubushyuhe bwibumba buri munsi ya dogere 50, igice cya plastiki nticyoroshye, kandi biroroshye kubyara gusudira nabi, ibimenyetso bitemba, Gukunda guhindagurika no guhinduka hejuru ya dogere 90
4) Uburebure bwurukuta rwa plastike bugomba kuba bumwe kugirango wirinde kubura kole hamwe nu mfuruka zikarishye kugirango wirinde guhangayika.
02
Ibiranga inzira
PP ifite amazi meza mugihe cyo gushonga no gukora neza. PP ifite ibintu bibiri biranga mugutunganya
Imwe: Ubukonje bwa PP gushonga buragabanuka cyane hamwe no kwiyongera kwikigereranyo (bitatewe nubushyuhe)
Icya kabiri: Urwego rwerekezo rwa molekuline ni rwinshi kandi igipimo cyo kugabanuka kiri hejuru.
Ubushyuhe bwo gutunganya PP ni 200-300 ℃. Ifite ubushyuhe bwiza (ubushyuhe bwo kubora ni 310 ℃), ariko ku bushyuhe bwo hejuru (270-300 ℃), irashobora kwangirika iyo igumye muri barrale igihe kirekire. Kuberako ubwiza bwa PP bugabanuka cyane hamwe no kwiyongera k'umuvuduko wogosha, kongera umuvuduko w inshinge n'umuvuduko wo gutera inshinge bizongera umuvuduko wacyo kandi bitezimbere kugabanuka no kwiheba. Ubushyuhe bwububiko bugomba kugenzurwa hagati ya 30-50 ℃. PP gushonga irashobora kunyura mu cyuho gito cyane kandi igaragara imbere. Muburyo bwo gushonga bwa PP, igomba gukuramo ubushyuhe bwinshi bwo guhuza (ubushyuhe bunini bwihariye), kandi ibicuruzwa birashyuha nyuma yo gusohoka mubibumbano. Ibikoresho bya PP ntibikeneye gukama mugihe cyo gutunganya, kandi igipimo cyo kugabanuka hamwe na kristu ya PP iri munsi yicya PE.
03
Ingingo ugomba kwitondera mugutunganya plastike
Gutunganya plastike
PP yera ni amahembe yinzovu yera kandi irashobora gusiga amabara atandukanye. PP irashobora gusiga irangi gusa hamwe na masterbatch yamabara kumashini rusange yo gutera inshinge, ariko moderi zimwe zifite ibintu byigenga bya plasitiki byigenga bishimangira kuvanga, kandi birashobora no gusiga irangi hamwe na toner.
Ibicuruzwa bikoreshwa hanze muri rusange byuzuyemo UV stabilisateur na karubone yumukara. Ikigereranyo cyo gukoresha ibikoresho bitunganijwe ntigishobora kurenga 15%, bitabaye ibyo bizatera imbaraga kugabanuka no kubora no guhinduka amabara. Mubisanzwe, nta buryo bwihariye bwo gukama busabwa mbere yo gutunganya inshinge za PP.
Gutoranya imashini itera inshinge
Nta bisabwa bidasanzwe byo gutoranya imashini zitera inshinge. Kuberako PP ifite kristu yo hejuru. Imashini itera imashini ya mudasobwa ifite umuvuduko mwinshi wo gutera no kugenzura ibyiciro byinshi. Imbaraga zo gufatira muri rusange zigenwa na 3800t / m2, naho inshinge ni 20% -85%.
Igishushanyo mbonera n'irembo
Ubushyuhe bwububiko ni 50-90 ℃, nubushyuhe bwo hejuru bukoreshwa mubisabwa hejuru. Ubushyuhe bwibanze burenze 5 ℃ munsi yubushyuhe bwa cavity, diameter yiruka ni 4-7mm, uburebure bw irembo ryurushinge ni 1-1.5mm, kandi diameter irashobora kuba nto nka 0.7mm.
Uburebure bw irembo ryuruhande ni bugufi bushoboka, hafi 0.7mm, ubujyakuzimu ni kimwe cya kabiri cyubugari bwurukuta, naho ubugari bwikubye kabiri uburebure bwurukuta, kandi bugenda bwiyongera buhoro buhoro hamwe nuburebure bwamazi ashonga mu cyuho.
Ifumbire igomba kugira umuyaga mwiza. Umwobo wa vent ni 0.025mm-0.038mm z'uburebure na 1.5mm z'ubugari. Kugira ngo wirinde kugabanuka, koresha uruziga runini kandi ruzengurutse kandi ruzunguruka, kandi ubunini bwimbavu bugomba kuba buto (Urugero, 50-60% yubugari bwurukuta).
Ubunini bwibicuruzwa bikozwe muri homopolymer PP ntibigomba kurenza 3mm, bitabaye ibyo hazabaho ibibyimba (ibicuruzwa byurukuta rwinshi bishobora gukoresha PP ya kopi).
Gushonga ubushyuhe
Ahantu ho gushonga kwa PP ni 160-175 ° C, naho ubushyuhe bwangirika ni 350 ° C, ariko ubushyuhe ntibushobora kurenga 275 ° C mugihe cyo gutunganya inshinge. Ubushyuhe mu gice cyo gushonga nibyiza 240 ° C.
Umuvuduko wo gutera inshinge
Kugirango ugabanye imihangayiko yimbere no guhindura ibintu, hagomba gutoranywa inshinge yihuta, ariko amanota amwe ya PP nububiko ntibikwiye (ibituba numurongo wumwuka mumyambarire yumuntu). Niba ubuso bugaragara bugaragara hamwe numurongo wijimye kandi wijimye ukwirakwizwa n irembo, inshinge nkeya hamwe nubushyuhe bwo hejuru bugomba gukoreshwa.
Shonga igitutu
5bar gushonga ibyuma byinyuma birashobora gukoreshwa, kandi umuvuduko winyuma wibikoresho bya toner urashobora guhinduka muburyo bukwiye.
Gutera inshinge no gufata igitutu
Koresha umuvuduko mwinshi (1500-1800bar) kandi ufate igitutu (hafi 80% yumuvuduko watewe). Hindura gufata igitutu hafi 95% ya stroke yuzuye, hanyuma ukoreshe umwanya muremure.
Nyuma yo gutunganya ibicuruzwa
Kugirango wirinde kugabanuka no guhindura ibintu biterwa na nyuma ya kristu, ibicuruzwa muri rusange bigomba gushirwa mumazi ashyushye.
Shanghai Rainbow Industrial Co., Ltd.ni uruganda,Shanghai umukororombyaTanga ibikoresho bimwe byo kwisiga byo kwisiga.Niba ukunda ibicuruzwa byacu, urashoboratwandikire,
Urubuga:www.rainbow-pkg.com
Imeri:Bobby@rainbow-pkg.com
WhatsApp: +008613818823743
Igihe cyo kohereza: Ukwakira-04-2021