ABS plastikeifata umwanya wingenzi mubikorwa bya elegitoroniki, inganda zimashini, ubwikorezi, ibikoresho byubwubatsi, gukora ibikinisho nizindi nganda kubera imbaraga za mashini nyinshi hamwe nibikorwa byiza byuzuye, cyane cyane kubisanduku binini binini hamwe nibice bigize stress. , ibice byo gushushanya bikenera amashanyarazi ntibishobora gutandukana niyi plastiki.
1. Kuma plastike ya ABS
ABS plastike ya ABS ifite hygroscopique nyinshi kandi yunvikana cyane nubushuhe. Kuma bihagije no kubishyushya mbere yo kubitunganya ntibishobora gukuraho gusa imirabyo imeze nkumuriro nududodo twa feza hejuru yumurimo watewe numwuka wamazi, ariko kandi bifasha plastike gukora, kugabanya ikizinga na moiré hejuru yakazi. Ibirungo biri mubikoresho fatizo bya ABS bigomba kugenzurwa munsi ya 0.13%.
Ibihe byumye mbere yo guterwa inshinge: Mu gihe cy'itumba, ubushyuhe bugomba kuba munsi ya 75-80 and, kandi bukamara amasaha 2-3; mu ci, ubushyuhe bugomba kuba munsi ya 80-90 ℃ kandi bukamara amasaha 4-8. Niba igihangano gikeneye kugaragara neza cyangwa igihangano ubwacyo kiragoye, igihe cyo kumisha kigomba kuba kirekire, kigera kumasaha 8 kugeza 16.
Bitewe no kubaho kw'amazi meza, igihu hejuru nikibazo gikunze kwirengagizwa. Nibyiza guhindura icyuma cyimashini mo icyuma gishyushya umuyaga ushyushye kugirango wirinde ABS yumye kongera kwinjiza ubuhehere muri hopper. Shimangira kugenzura ubuhehere kugirango wirinde ubushyuhe bwibikoresho mugihe umusaruro uhagaritswe kubwimpanuka.
2. Ubushyuhe bwo gutera inshinge
Isano iri hagati yubushyuhe no gushonga ubwiza bwa plastike ya ABS itandukanye niyindi plastiki amorphous. Iyo ubushyuhe bwiyongereye mugihe cyo gushonga, gushonga mubyukuri bigabanuka gake cyane, ariko iyo bigeze ku bushyuhe bwa plastike (urugero rwubushyuhe bukwiriye gutunganywa, nka 220 ~ 250 ℃), niba ubushyuhe bukomeje kwiyongera buhumyi, birwanya ubushyuhe ntibizaba hejuru cyane. Kwangirika k'ubushyuhe bwa ABS byongera gushonga gushonga, gukoragushushanya inshingebigoye cyane, hamwe nubukanishi bwibice nabyo biragabanuka.
Kubwibyo, ubushyuhe bwo gutera inshinge za ABS burenze ubw'ibya plastiki nka polystirene, ariko ntibishobora kugira ubushyuhe bwiyongera nkubwa nyuma. Ku mashini zimwe na zimwe zitera inshinge zidafite ubushyuhe buke, iyo umusaruro wibice bya ABS ugeze ku mubare runaka, usanga akenshi usanga ibice byumuhondo byumuhondo cyangwa umukara byinjijwe mubice, kandi biragoye kubikuraho.
Impamvu nuko plastike ya ABS irimo ibice bya butadiene. Iyo agace ka pulasitike gakomeje kwizirika ku bice bimwe na bimwe biri mu cyuma cya screw bitoroshye kozwa ku bushyuhe bwo hejuru, kandi bigakorerwa ubushyuhe burebure bw'igihe kirekire, bizatera kwangirika na karuboni. Kubera ko ubushyuhe bwo hejuru bushobora gutera ibibazo kuri ABS, birakenewe kugabanya ubushyuhe bwitanura bwa buri gice cya barriel. Birumvikana, ubwoko butandukanye nibigize ABS bifite ubushyuhe butandukanye bwitanura. Nka mashini ya plunger, ubushyuhe bwitanura buguma kuri 180 ~ 230 ℃; imashini ya screw, ubushyuhe bwitanura buguma kuri 160 ~ 220 ℃.
Birakwiye cyane cyane kuvuga ko, kubera ubushyuhe bwinshi bwo gutunganya ABS, bwumva impinduka mubintu bitandukanye. Kubwibyo, kugenzura ubushyuhe bwimbere yimbere ya barrale nigice cya nozzle ni ngombwa cyane. Imyitozo yerekanye ko impinduka zose zoroheje muri ibi bice byombi zizagaragarira mubice. Ninshi ihindagurika ryubushyuhe, rizazana inenge nka weld seam, gloss gloss, flash, stick mold, amabara nibindi.
3. Umuvuduko w'inshinge
Ubukonje bwibice bishonga bya ABS burenze ubwa polystirene cyangwa polystirene yahinduwe, bityo umuvuduko mwinshi wo gutera inshinge ukoreshwa mugihe cyo gutera inshinge. Birumvikana ko ibice byose bya ABS bisaba umuvuduko mwinshi, kandi igitutu cyo gutera inshinge gishobora gukoreshwa kubice bito, byoroshye, kandi binini.
Mugihe cyo gutera inshinge, umuvuduko uri mu cyuho mugihe irembo rifunze akenshi bigena ubwiza bwubuso bwigice hamwe nurwego rwinenge ya feza. Niba umuvuduko ari muto cyane, plastike iragabanuka cyane, kandi hari amahirwe menshi yo kutabonana nubuso bwurwobo, kandi hejuru yakazi kakozwe atome. Niba umuvuduko ari munini cyane, guterana hagati ya plastike nubuso bwurwobo birakomeye, byoroshye gutera gukomera.
4. Umuvuduko wo gutera inshinge
Kubikoresho bya ABS, nibyiza gutera inshinge ziciriritse. Iyo umuvuduko wo gutera inshinge wihuta cyane, plastike iroroshye gutwikwa cyangwa kubora no guhumeka, ibyo bikazana inenge nko gusudira, gusiga nabi no gutukura kwa plastike hafi y irembo. Ariko, mugihe utanga ibice byoroheje kandi bigoye, biracyakenewe kwemeza umuvuduko mwinshi uhagije, bitabaye ibyo kuzuza.
5. Ubushyuhe bukabije
Ubushyuhe bwo kubumba bwa ABS buri hejuru cyane, kimwe n'ubushyuhe. Mubisanzwe, ubushyuhe bwububiko bwahinduwe kuri 75-85 ° C. Iyo utanga ibice bifite ahantu hanini hateganijwe, ubushyuhe bwagenwe busabwa kuba 70 kugeza 80 ° C, naho ubushyuhe bwimuka busabwa kuba 50 kugeza 60 ° C. Mugihe utera ibice binini, bigoye, bikikijwe n'inkuta, ubushyuhe bwihariye bwububiko bugomba gutekerezwa. Kugirango ugabanye umusaruro kandi ukomeze kugereranya ubushyuhe bwubushyuhe, nyuma yo gukuramo ibice, ubwogero bwamazi akonje, ubwogero bwamazi ashyushye cyangwa ubundi buryo bwo gushiraho imashini burashobora gukoreshwa kugirango hishyurwe igihe cyambere cyo gukonjesha ubukonje muri urwobo.
Igihe cyo kohereza: Apr-13-2022
