Amayunithi amaningi nezimboni zisebenzisa izixube zenjoloba ezivulekile.Isici sayo esikhulu ukuthi inokuguquguquka okukhulu nokuhamba, futhi ifaneleka ngokukhethekile ukuxutshwa kwezinhlobonhlobo zenjoloba ezivamile, irabha eqinile, irabha yesipontshi, njll.
Uma uxuba nesigayo esivulekile, ukuhleleka kwe-dosing kubaluleke kakhulu.Ngaphansi kwezimo ezijwayelekile, irabha eluhlaza ifakwa esikhaleni se-roll ngasohlangothini olulodwa lwesondo elicindezelayo, futhi ibanga lokugoqa lilawulwa cishe ku-2mm (thatha i-mixer yerabha eyi-intshi engu-14 njengesibonelo) bese ugingqa imizuzu emi-5.I-glue eluhlaza yenziwa ifilimu ebushelelezi futhi engenasikhala, ehlanganiswe ku-roller yangaphambili, futhi kukhona inani elithile leglue eliqoqiwe ku-roller.I-akhawunti yenjoloba eqoqiwe cishe i-1/4 yenani eliphelele lerabha eluhlaza, bese kwengezwa ama-anti-aging agents kanye nama-accelerator, futhi irabha igxiliwe izikhathi eziningana.Inhloso yalokhu ukwenza i-antioxidant ne-accelerator ihlakazeke ngokulinganayo kuglue.Ngesikhathi esifanayo, ukungezwa kokuqala kwe-antioxidant kungavimbela isenzakalo sokuguga esishisayo esenzeka ngesikhathi sokuxuba irabha ephezulu yokushisa.Futhi amanye ama-accelerator anomphumela we-plasticizing ku-compound yenjoloba.I-Zinc oxide ibe isifakwa.Uma wengeza i-carbon black, inani elincane kakhulu kufanele lengezwe ekuqaleni, ngoba amanye amarubha aluhlaza azophuma ku-roll ngokushesha nje lapho kufakwa i-carbon black.Uma kukhona noma yiluphi uphawu lwe-off-roll, yeka ukufaka i-carbon black, bese wengeza i-carbon black ngemva kokuthi irabha isongwe erolini kahle futhi.Kunezindlela eziningi zokwengeza i-carbon black.Ikakhulukazi hlanganisa: 1. Faka i-carbon black ngobude bokusebenza berola;2. Faka i-carbon black phakathi ne-roller;3. Yengeze eduze komkhawulo owodwa we-baffle.Ngokubona kwami, izindlela ezimbili zokugcina zokwengeza i-carbon black zingcono, okungukuthi, ingxenye kuphela ye-degumming isuswa ku-roller, futhi akunakwenzeka ukususa yonke i-roller.Ngemva kokukhishwa kwenhlanganisela yenjoloba emgqeni, i-carbon black icindezelwa kalula ibe ama-flakes, futhi akulula ukuhlakazeka ngemva kokugoqwa futhi.Ikakhulukazi lapho uxova irabha eqinile, isibabule sicindezelwa sibe ama-flakes, okunzima kakhulu ukusihlakaza ku-rubber.Ayikho iphasi yokucwenga noma ezacile engashintsha indawo “yephakethe” eliphuzi elikhona kufilimu.Ngamafuphi, uma ungeza i-carbon black, engeza kancane futhi kaningi.Ungathathi inkathazo ukuthela yonke i-carbon black ku-roller.Isigaba sokuqala sokwengeza i-carbon black yisikhathi esisheshayo "sokudla".Ungafaki okokuthambisa ngalesi sikhathi.Ngemva kokwengeza ingxenye ye-carbon black, engeza ingxenye ye-softener, engasheshisa "ukudla".Enye ingxenye yesithambisi ingezwa nekhabhoni emnyama esele.Enqubweni yokwengeza i-powder, ibanga le-roll kufanele likhululeke kancane kancane ukuze kugcinwe i-rubber egxiliwe ngaphakathi kwebanga elifanele, ukuze i-powder ingene ngokwemvelo ku-rubber futhi ingahlanganiswa ne-rubber ngezinga eliphezulu.Kulesi sigaba, kwenqatshelwe ngokuphelele ukusika ummese, ukuze ungaphazamisi ikhwalithi ye-rubber compound.Esimeni sokuthambisa kakhulu, i-carbon black and softener nayo ingangezwa ngendlela yokunamathisela.I-Stearic acid akufanele ifakwe kusenesikhathi kakhulu, kulula ukuyidala, kungcono ukuyifaka uma kusekhona i-carbon black ku-roll, futhi i-vulcanizing agent kufanele yengezwe ngokuhamba kwesikhathi.Amanye ama-vulcanizing agents nawo ayengezwa uma kusekhona i-carbon black ku-roller.Okufana ne-ejenti ye-vulcanizing DCP.Uma yonke i-carbon black idliwe, i-DCP izoshiswa futhi inyibilikiswe ibe uketshezi, oluzowela ethreyini.Ngale ndlela, inani le-vulcanizing ejenti lizoncishiswa.Ngenxa yalokho, ikhwalithi yenhlanganisela yerabha iyathinteka, futhi kungenzeka ibangele ukuvuthwa okungaphekiwe.Ngakho-ke, i-ejenti ye-vulcanizing kufanele yengezwe ngesikhathi esifanele, kuye ngokuthi izinhlobonhlobo.Ngemuva kokuthi zonke izinhlobo ze-ejenti ezihlanganisayo zengezwe, kuyadingeka ukuqhubeka nokuphenduka ukwenza inhlanganisela yenjoloba ixubene ngokulinganayo.Ngokuvamile, kukhona "imimese eyisishiyagalombili", "izikhwama ezingunxantathu", "i-rolling", "i-tongs emincane" nezinye izindlela zokuphendula.
“Imimese eyisishiyagalombili” iwukusika imimese nge-engeli engu-45° ngendlela ehambisanayo yerola, izikhathi ezine ohlangothini ngalunye.I-glue esele isontekile ngo-90 ° futhi yengezwe ku-roller.Inhloso ukuthi impahla yenjoloba igoqelwe ngendlela eqondile neqondile, ehambisana nokuxuba okufanayo."Isikhwama esingunxantathu" yisikhwama sepulasitiki esenziwe sibe unxantathu ngamandla erola."Ukugoqa" ukusika ummese ngesandla esisodwa, ukugoqa into yerabha ibe isilinda ngesinye isandla, bese uyifaka ku-roller.Inhloso yalokhu ukwenza inhlanganisela yerabha ixubene ngokulinganayo.Kodwa-ke, "isikhwama esingunxantathu" kanye "ne-rolling" asihambisani nokushisa kokushisa kwezinto zenjoloba, okulula ukubangela ukushisa, futhi kusebenza kanzima, ngakho lezi zindlela ezimbili akufanele zikhuthazwe.Isikhathi sokupheka yimizuzu emi-5 kuye kwengama-6.
Ngemuva kokuthi i-compound yenjoloba incibilikile, kuyadingeka ukunciphisa i-rubber compound.Ukuzijwayeza kufakazele ukuthi iphasi elincanyana elihlanganisiwe lisebenza kahle kakhulu ekuhlakazweni kwe-ejenti ehlanganisayo kunhlanganisela.Indlela yokudlula encane ukulungisa ibanga le-roller libe ngu-0.1-0.5 mm, ufake impahla yerabha ku-roller, futhi uyivumele iwele ethreyini yokudla ngokwemvelo.Ngemva kokuwa, vula impahla yerabha ngo-90° kurola engenhla.Lokhu kuphindwa izikhathi ezi-5 kuya kwezi-6.Uma izinga lokushisa lento yerabha liphezulu kakhulu, misa iphasi elincane, bese ulinda ukuthi impahla yenjoloba iphole ngaphambi kokunciphisa ukuze uvimbele injoloba ukuthi ingashi.
Ngemuva kokuthi iphasi elincanyana seliqediwe, phumula ibanga le-roll libe ngu-4-5mm.Ngaphambi kokuba impahla yenjoloba ilayishwe emotweni, ucezu oluncane lwerabha luyadatshulwa bese lufakwa kumarola.Inhloso ukubhoboza ibanga le-roll, ukuze kuvinjwe umshini wokuxuba injoloba ukuthi ungenwe ngobudlova ngaphansi kwamandla amakhulu futhi ulimaze imishini ngemva kokuba inani elikhulu le-rubber lifakwe ku-roller.Ngemuva kokuthi impahla yenjoloba ilayishwe emotweni, kufanele idlule igebe le-roll kanye, bese uyigoqa emgqeni wangaphambili, uqhubeke uyivula imizuzu emi-2 kuya kwemi-3, bese uyikhipha futhi uyipholise ngesikhathi.Ifilimu ingama-80 cm ubude, 40 cm ububanzi no-0.4 cm ubukhulu.Izindlela zokupholisa zihlanganisa ukupholisa kwemvelo kanye nokupholisa ithangi lamanzi abandayo, kuye ngezimo zeyunithi ngayinye.Ngesikhathi esifanayo, kuyadingeka ukugwema ukuthintana phakathi kwefilimu nomhlabathi, isihlabathi nokunye ukungcola, ukuze ungathinti ikhwalithi ye-rubber compound.
Enkambweni yokuxuba, ibanga le-roll kufanele lilawulwe ngokuqinile.Izinga lokushisa elidingekayo ukuze kuhlanganiswe ama-rubber ahlukene aluhlaza kanye nokuxuba izinhlanganisela ezihlukahlukene zobunzima kuhlukile, ngakho-ke izinga lokushisa le-roller kufanele liqondiswe ngokuvumelana nesimo esithile.
Ezinye izisebenzi ezixuba iraba zinemiqondo emibili engalungile elandelayo: 1. Bacabanga ukuthi uma isikhathi sokuxuba sikhula, izinga lenjoloba liyaphakama.Lokhu akunjalo ekusebenzeni, ngenxa yezizathu ezichazwe ngenhla.2. Kukholelwa ukuthi ngokushesha inani leglue eliqoqwe ngaphezu kwe-roller liyengezwa, isivinini sokuxuba sizoba ngokushesha.Eqinisweni, uma ingekho i-glue eqoqiwe phakathi kwama-rollers noma i-glue eqoqiwe incane kakhulu, i-powder izocindezelwa kalula ibe ama-flakes futhi iwele kuthreyi yokudla.Ngale ndlela, ngaphezu kokuthinta ikhwalithi yenjoloba exubekile, ithreyi yokudla kufanele ihlanzwe futhi, futhi i-powder ewayo yengezwa phakathi kwama-roller, okuphindaphindiwe izikhathi eziningi, okwandisa kakhulu isikhathi sokuxuba futhi kwandisa umsebenzi. umfutho.Yiqiniso, uma ukuqoqwa kweglue kukhulu kakhulu, isivinini sokuxuba se-powder sizokwehla.Kungabonakala ukuthi ukuqoqwa kweglue okuningi kakhulu noma okuncane kakhulu akufanelekile ukuxuba.Ngakho-ke, kufanele kube nenani elithile leglue eliqoqiwe phakathi kwama-roller ngesikhathi sokuxuba.Ngesikhathi sokuxova, ngakolunye uhlangothi, i-powder igxiliwe ku-glue ngesenzo samandla omshini.Ngenxa yalokho, isikhathi sokuxuba sifinyezwa, amandla okusebenza ayancipha, futhi izinga le-rubber compound lihle.
Isikhathi sokuthumela: Apr-18-2022