Kucubungula tintfo letiluhlata tepulasitiki ikakhulukati inchubo yekuncibilikisa, kugeleta kanye nekupholisa tinhlayiya tenjoloba tibe yimikhicito lephelile ngemuva kwekubeka. Kuyinchubo yekushisa bese kuyapholisa. Kuphindze kube yinchubo yekushintja emapulasitiki kusuka etinhlayiyani kuya kumajamo lehlukene. Kuba umshini wekushisa wepulasitiki, yonkhe lenchubo ingahle yentiwe ngekwemvelo kute isebente ngalokugcwele ngaphandle kwekusebenta ngesandla, futsi lizinga lemkhicito lizinzile! Lokulandzelako kutawuchaza inchubo yekucubungula kusuka kumbono wetigaba letehlukene.
1. Ncibilikisa
I-heater yaledivayisi ivumela tinhlayiya tetintfo letiluhlata kutsi tincibilike kancane kancane tibe ngumfutfo wemanti. Tintfo letehlukene letiluhlata tilungele kakhulu kulawula lizinga lekushisa. Kukhulisa lizinga lekushisa kutawusheshisa kuhamba kwetintfo letiluhlata, lokungakhulisa kusebenta kahle, kepha hhayi kutsi kucinisekise umkhicito. Kufanele kuzuzwe ibhalansi lefanele. Ngekwengeta, umphumela lomuhle kanye netimphawu te PP uma ngabe kukhona kudzabuka lokusetulu kwekushisa kutsi kuncono kwenta lentfo leluhlata igelete kahle kuya ekufeni ngesikhatsi sekukhicita, kwentela kugwema kugcwaliswa lokunganele noma kubuyela emuva. Reflux kusho kutsi kugeleta kwetintfo letiluhlata kushesha kunelizinga lekukhicita, bese ekugcineni kukhulisa kusebenta kahle lokusemkhatsini kwekugeleta, lokulingana nekutfutfuka kwe MFR. Kuyinye yetindlela letikhonako tekucubungula, Nomakunjalo, kuphindze kubangele kusabalalisa lokungajwayelekile kwe MFR, lokungaholela ekukhuleni kwekungasimami kanye nekukhuphuka kwelizinga lesici. Kepha, ngenca yesicelo, imikhicito lephelile ye-PP akusiyo imikhicito lenekuciniseka lokusezingeni leliphakeme, ngako-ke umtselela awukhulu.
2.Sicu sesikulufu
Liningi lekucubungula kwe PP liya ngesikulufu kutsi lishayele le fluidity, ngako-ke umklamo wesikulufu unemtselela lomkhulu. Ububanzi butsintsa lokukhiphako, kanye nesilinganiso sekucindzetelwa butsintsa inani lekucindzeteleka. Kuphindze kutsintse umphumela kanye nemphumela wemkhicito lophelile, kufaka ekhatsi umphumela wekuhlanganisa tintfo letehlukahlukene (Color Masterbatch, tintfo letingetiwe kanye netingucuko). Kuhamba kwetintfo letiluhlata kuncike kakhulu ku heater, kepha kukhuhlana kanye nekukhuhlana kwetintfo letiluhlata kutawuphindze kukhicite emandla ekushisa ekukhuhlana kwentela kusheshisa kugeleta. Ngakoke, silinganiso sekucindzetelwa kwesikulufu sincane, kugeleta kuncane, futsi sivinini sekujika kumele sikhuliswe, lokuholela emandla ekushisa ekukhuhlana kakhulu kunesikulufu lesinesilinganiso lesikhulu sekucindzetelwa. Ngako-ke, kuvame kutsiwa kute inkhosi ekucubunguleni ipulasitiki, futsi umuntfu locondza kahle kusebenta kwemshini nguye inkhosi. Kushisa kwetintfo letiluhlata akusiko nje kuphela kushisa, kepha kufaka ekhatsi kushisa kwekukhuhlana kanye nesikhatsi sekuphefumula. Ngako-ke, lena yinkinga lesebentako. Kuba nesipiliyoni kuyasita ekucatululeni tinkinga tekukhicita kanye nekutfutfukisa kusebenta kahle. Uma umphumela wekuhlanganisa wesikulufu muhle kakhulu, ngalesinye sikhatsi tikulufu letehlukene letinetigaba letimbili noma tikulufu te biaxial takhiwe, futsi sigaba ngasinye setinhlobo letehlukene tetikulufu sibekwa ngekwehlukana kwentela kufeza imiphumela leyehlukene yekuhlanganisa.
3. Kufa noma kufa inhloko .
Kubumba kabusha kwepulasitiki kuya ngesikhunta noma inhloko yekufa. Umkhicito lophelile wekubumba umjovo unetigaba letintsatfu, futsi sikhunta siphindze sibe yinkimbinkimbi. Inkinga yekuncipha kufanele icatjangelwe. Leminye imikhicito indiza, umgca kanye inaliti kuchubeka umkhicito uyafa. Uma ngabe ngemajamo lakhetsekile, ahlukaniswa njengemajamo lakhetsekile. Kufanele kunakwe inkinga yekupholisa ngekushesha kanye nekulinganisa. Imishini leminyenti yepulasitiki yentelwe njengemijovo. Emandla e-extrusion lacondziswa ngulesikulufu atawubangela kucindzeteleka lokukhulu endzaweni lencane yekuphuma futsi ente ncono kusebenta kahle kwekukhicita. Lapho inhloko yekufa yakhelwe njengendiza, indlela yekwenta tintfo letiluhlata tisabalaliswe ngekulingana kuyo yonkhe indzawo, umklamo wetingubo hanger ukufa inhloko kubaluleke kakhulu. Naka litfuba le extrusion kwentela kukhulisa impompo ye gill yetimfishi kanye nekusimamisa kuniketwa kwetintfo letiluhlata.
4. Kupholisa
Ngetulu kwekutfulula tintfo letiluhlata esangweni le sprue, lesikhunta sekujova siphindze sibe nesakhiwo sekupholisa tintfo letiluhlata emseleni wekupholisa. Extrusion kubumba kuncike umzila emanti kupholisa ku roller ukufeza umphumela kupholisa. Ngekwengeta, kukhona nemimese yemoya, emanti ekupholisa lamanti ngco esikhwameni sekuphefumula, kuphefumula ngembobo kanye naletinye tindlela tekupholisa.
5. Nweba
Lokucubungula kabusha kwemkhicito lophelile kanye nekwandziswa kutawukhulisa umphumela. Sibonelo, sivinini lesehlukile selibhande lekupakisha lelicondziswa ngema rollers langembili nalangemuva litawubangela umphumela wekungeta. Emandla e-tensile encenye yekungeta yemkhicito lophelile ayaciniswa, lokungesiko melula kudzabula, kepha kulula kakhulu kudzabula ngekuvundlile. Kusabalaliswa kwesisindvo se-molecule kutawuphindze kutsintse umphumela wekwandziswa ekukhiciteni ngesivinini lesikhulu. Yonkhe imikhicito lekhishiwe, kufaka ekhatsi imicu, inekwandziswa lokungalingani. Vacuum kanye nekwakha umoya locindzetelekile kungaphindze kutsatfwe njengalenye indlela yekwelula.
6. Nciphisa
Noma nguyiphi intfo leluhlata inenkinga yekuncipha, lokubangelwa kucindzeteleka kwangekhatsi ngesikhatsi sekwandziswa kwekushisa, kufinyeta lokubandzako kanye ne crystallization. Kukhuluma ngalokujwayelekile, kunwebeka kwekushisa kanye nekuncipha lokubandzako kulula kuncoba, lokungentiwa ngekutsi kukhuliswe sikhatsi sekupholisa ekucubunguleni kanye nekugcina umfutfo njalo. Tintfo letiluhlata te crystalline tivame kuba nemehluko lomkhulu wekuncipha kunetintfo letiluhlata letingasiwo ema crystalline, cishe 16% we PP, kepha cishe 4% kuphela we ABS, lokuyintfo lehluke kakhulu. Lencenye idzinga kuncotjwa esikhunjini, noma tintfo letingetiwe tekunciphisa lizinga lekuncipha tivame kufakwa, iLDPE ivame kufakwa epuletini le extrusion kwenta ncono inkinga yekubeka intsamo.
Umshini wepulasitiki loshisako usebenta cishe kuwo onkhe emapulasitiki lashisako. Eminyakeni yamuva, umshini wepulasitiki we-thermoforming nawo usetjentiswe ngemphumelelo kwenta lamanye emapulasitiki lashisako. Umjikeleto wekubumba wemshini wepulasitiki we thermoforming mfishane (imizuzwane lembalwa kuya kumizuzu lembalwa), futsi ungakha tikhunta letinesimo lesiyinkimbinkimbi, bukhulu lobunembile futsi ngesikhatsi sinye. Imikhicito yemishini yekushisa ye-GTMSMART ifaka ekhatsi Umshini Wepulasitiki Wekwakha Kushisa, Umshini Wekwakha Inkomishi Leshisako, Umshini Wekwakha Ipulasitiki, Umshini Wekushisa Wembita Yetimbali Yepulasitiki.
GTMSMART kuniketa imishini yesigaba sekucala ngentsengo levumako kakhulu lengahlangabetana kalula netidzingo takho tekukhicita ngebunyenti. Hlola luhla lwemikhicito yetfu futsi utawutfola tintfo letinyenti letisebenta ngendlela lesetulu letihambisana netidzingo takho.
Sikhatsi sekuposa: Imphala-31-2021