Intangiriro: Nk'imwe muri pulasitiki ikoreshwa cyane muri rusange, PP iboneka ahantu hose mu buzima bwa buri munsi. Ifite ubuziranenge buhanitse kurusha mudasobwa isanzwe. Nubwo idafite ibara rihanitse rya ABS, PP ifite ubuziranenge buhanitse kandi irabagirana cyane. Mu nganda, ibikoresho bya PP bikunze gukoreshwa mu bikoresho byo gupfunyikamo nkaamacupa ya pulasitiki, imipfundikizo y'amacupa, amacupa ya crèmen'ibindi. Mpanganijwe hakurikijweIPAKI YA RBkandi byasangiwe n'uruhererekane rw'ibicuruzwa kugira ngo bikoreshwe:
Izina ry'ubutabire: Polypropylene
Izina ry'Icyongereza: Polypropylene (izwi nka PP)
PP ni polymeri ikoze mu buryo bwa kristalo. Muri pulasitiki ikoreshwa cyane, PP niyo yoroheje cyane, ifite ubucucike bwa 0.91g/cm3 gusa (munsi y'amazi). Muri pulasitiki zikoreshwa muri rusange, PP ifite ubushyuhe bwiza cyane. Ubushyuhe bwayo bwo guhindura ubushyuhe ni 80-100°C kandi ishobora gutekwa mu mazi abira. PP ifite ubushyuhe bwiza bwo gucikamo stress no kumara igihe kinini umuntu ananiwe. Izwi cyane nka "plastiki 100%. Imikorere ya PP iruta iyo ibikoresho bya PE. Ibicuruzwa bya PP bifite uburemere bworoshye, ubukomere bwiza kandi birwanya imiti neza.
Ingaruka mbi za PP: kudakora neza mu buryo buhagije, kudakomera bihagije, kudahangana n’ikirere neza, byoroshye kwangiza umuringa, igira ingaruka mbi nyuma yo gucika intege, nyuma yo gucika intege, yoroshye gusaza, icika intege, kandi yoroshye kwangirika.
01
Ibiranga uburyo bwo kubumba
1) Ibikoresho bya kristu bifite hygroscopicity nkeya kandi bishobora gushonga, kandi biroroshye kubora iyo bihuye n'icyuma gishyushye igihe kirekire.
2) Uburyo amazi anyuramo ni bwiza, ariko uburyo amazi agabanuka n'uburyo amazi agabanuka ni binini, kandi imyobo, uduce duto, n'uburyo amazi ahindagurika byoroshye kubaho.
3) Umuvuduko wo gukonjesha ni wihuta, sisitemu yo gusukamo n'iyindi sisitemu yo gukonjesha bigomba gusohora ubushyuhe buhoro buhoro, kandi byitondere kugenzura ubushyuhe bwo gushushanya. Ubushyuhe bw'ibikoresho biroroshye kuyoborwa ku bushyuhe buri hasi n'umuvuduko mwinshi. Iyo ubushyuhe bw'ibimera buri munsi ya dogere 50, igice cya pulasitiki nticyoroshye, kandi byoroshye gukora ubushuhe bubi, ibimenyetso by'amazi, Bishobora kugorama no guhinduka hejuru ya dogere 90
4) Ubunini bw'urukuta rwa pulasitiki bugomba kuba bumwe kugira ngo hirindwe kole ibura n'imfuruka zityaye kugira ngo hirindwe kole nyinshi.
02
Ibiranga inzira
PP ifite ubushobozi bwo gushonga neza mu gihe cy'ubushyuhe bushongeshejwe kandi ifite ubushobozi bwo gutunganya ibintu neza. PP ifite imiterere ibiri mu gutunganya ibintu.
Icya mbere: Ubushyuhe bwa PP bugabanuka cyane iyo umuvuduko wo gukata uzamuka (ubushyuhe budahinduka cyane)
Icya kabiri: Igipimo cy'imiterere ya molekile kiri hejuru kandi igipimo cyo kugabanuka kiri hejuru.
Ubushyuhe bwo gutunganya PP buri hagati ya 200-300℃. Ifite ubushyuhe bwiza (ubushyuhe bwo kubora ni 310℃), ariko ku bushyuhe bwinshi (270-300℃), ishobora kwangirika iyo igumye mu gikoresho igihe kirekire. Kubera ko ubushyuhe bwa PP bugabanuka cyane iyo umuvuduko wo gukata uzamuka, kongera umuvuduko wo gutera no gutera bizongera ubushyuhe bwayo kandi bikongera ubushyuhe bwo gushonga no gucika intege. Ubushyuhe bw'ibihumyo bugomba kugenzurwa mu rugero rwa 30-50℃. Ubushyuhe bwa PP bushobora kunyura mu cyuho gito cyane cy'ibihumyo kandi bukagaragara imbere. Mu gihe cyo gushonga kwa PP, igomba kwinjiza ubushyuhe bwinshi bwo guhuza (ubushyuhe bwinshi bwihariye), kandi ibicuruzwa bikaba bishyushye cyane nyuma yo gukurwa mu gihumyo. Ibikoresho bya PP ntibikeneye kuma mu gihe cyo gutunganya, kandi umuvuduko wo gushonga no gushushanya PP biri hasi ugereranije n'ibya PE.
03
Ingingo zo kwitondera mu gutunganya pulasitiki
Gutunganya pulasitiki
PP y'umwimerere ni umweru w'indovu y'umweru kandi ishobora gusigwa irangi mu mabara atandukanye. PP ishobora gusigwa irangi gusa hakoreshejwe imashini zikoresha inshinge, ariko zimwe muri moderi zifite ibintu byigenga bitera pulasitiki bikomeza ingaruka zo kuvanga, kandi zishobora no gusigwa irangi hakoreshejwe toner.
Ibikoresho bikoreshwa hanze muri rusange byuzuyemo ibintu bitera imbaraga mu mirasire ya UV n'umukara wa karuboni. Igipimo cy'ikoreshwa ry'ibikoresho byasubiwemo ntikigomba kurenga 15%, bitabaye ibyo bizatera kugabanuka kw'imbaraga no kubora no guhinduka ibara. Muri rusange, nta buryo bwihariye bwo kumisha bukenewe mbere yo gutunganya inshinge za PP.
Guhitamo imashini ikora inshinge
Nta byangombwa byihariye bisabwa mu guhitamo imashini zikora inshinge. Kubera ko PP ifite ubuziranenge bwinshi. Imashini ikora inshinge za mudasobwa ifite umuvuduko mwinshi wo gutera inshinge n'igenzura ry'ibice byinshi irakenewe. Imbaraga zo gufunga muri rusange zigenwa na 3800t/m2, kandi ingano y'inshinge ni 20%-85%.
Igishushanyo mbonera cy'ibimera n'irembo
Ubushyuhe bw'ibihumyo ni 50-90°C, kandi ubushyuhe bwinshi bw'ibihumyo bukoreshwa ku bunini buri hejuru. Ubushyuhe bw'ibanze buri munsi ya 5°C ugereranyije n'ubushyuhe bw'aho biherereye, umurambararo w'ikirenge ni 4-7mm, uburebure bw'uruzitiro rw'urushinge ni 1-1.5mm, kandi umurambararo ushobora kuba muto nka 0.7mm.
Uburebure bw'irembo ry'inkombe ni bugufi bushoboka, hafi mm 0.7, uburebure ni kimwe cya kabiri cy'ubugari bw'urukuta, kandi ubugari bukuba kabiri ubunini bw'urukuta, kandi bugenda bwiyongera buhoro buhoro uko uburebure bw'amazi ashongeshwa mu mwobo bugenda bwiyongera.
Igikoresho kigomba kugira aho umwuka unyura neza. Umwobo w'imyobo ni 0.025mm-0.038mm z'ubujyakuzimu n'ubugari bwa 1.5mm. Kugira ngo wirinde ibimenyetso byo gushonga, koresha utuzu duto kandi twizengurutse n'utuzenguruko tw'uruziga, kandi ubugari bw'imbavu bugomba kuba buto (Urugero, 50-60% by'ubugari bw'urukuta).
Ubunini bw'ibicuruzwa bikozwe muri homopolymer PP ntibugomba kurenza mm 3, bitabaye ibyo hazabaho uduheri (ibicuruzwa binini byo ku rukuta bishobora gukoresha copolymer PP gusa).
Ubushyuhe bwo gushonga
Aho gushonga kwa PP ni 160-175°C, naho ubushyuhe bwo kubora ni 350°C, ariko ubushyuhe ntibushobora kurenza 275°C mu gihe cyo gutera inshinge. Ubushyuhe mu gice cyo gushonga ni byiza cyane 240°C.
Umuvuduko wo gutera inshinge
Kugira ngo ugabanye umuvuduko w'imbere n'ihindagurika ry'imiterere y'umubiri, hagomba gutoranywa uburyo bwo gutera umuti wihuta cyane, ariko ubwoko bumwe na bumwe bwa PP n'ibihumyo ntibikwiye (uduheri n'imirongo y'umwuka mu gituza cy'umuntu). Niba ubuso bufite ishusho bugaragara bufite imirongo y'urumuri n'umwijima ikwirakwijwe n'irembo, hagomba gukoreshwa uburyo bwo gutera umuti wihuta cyane n'ubushyuhe bwinshi bw'ibihumyo.
Igitutu cy'umugongo gishonga
Umuvuduko w'inyuma wa 5bar melt adhesive ushobora gukoreshwa, kandi umuvuduko w'inyuma w'ibikoresho bya toner ushobora guhindurwa uko bikwiye.
Gutera inshinge n'uburyo bwo gufata umuvuduko
Koresha umuvuduko mwinshi wo guterwa inshinge (1500-1800bar) n'umuvuduko wo guterwa (hafi 80% by'umuvuduko wo guterwa inshinge). Hindura ujye ku muvuduko wo guterwa ku kigero cya 95% by'umuvuduko wose, kandi ukoreshe igihe kirekire cyo guterwa.
Nyuma yo gutunganya ibicuruzwa
Kugira ngo hirindwe ko ibintu bigabanuka kandi bigahinduka bitewe no gushonga nyuma yo gushonga, muri rusange ibicuruzwa bigomba kwinjizwa mu mazi ashyushye.
Shanghai Rainbow Industrial Co., Ltdniwe mukozi,Pake y'umukororombya wa ShanghaiTanga ipaki imwe y'ubwiza. Niba ukunda ibicuruzwa byacu, ushoboraTwandikire,
Urubuga:www.rainbow-pkg.com
Imeri:Bobby@rainbow-pkg.com
WhatsApp: +008613818823743
Igihe cyo kohereza: Ukwakira-04-2021