Kungani i-rubber idinga ukuba senyungwini? Yiziphi izinzuzo zokuvuselela irabha?
Yize irabha lerabha eliluhlaza libuye libe nezimpawu ezithile ezilusizo, futhi linezithiyo eziningi, njengamandla aphansi kanye nokuqina okuphansi; Ukubanda kwenza kube nzima, kushisa kukwenza kunamathele; Kulula ukukhula, njll. Ekuqaleni kuka-1840s, kwatholakala ukuthi irabha ingahlangana ngokulingisa ngokulifudumeza kanye nesibabule. Therefore, until now, although rubber can be crosslinked not only with sulfur, but also with many other chemical crosslinking agents and physical and chemical methods, in the rubber industry, it has always been customary to refer to rubber crosslinking as “vulcanization”, while the plastic processing industry sometimes refers to crosslinking reaction as curing. I-Vulcanization ithuthukisa kakhulu ukusebenza kwenjoloba eluhlaza, inwebisa ububanzi benjoloba, bese ibeka isisekelo sokukhiqizwa kwezimboni ezinkulu kanye nokusetshenziswa kwerabha.
I-Rubber Vulcanization kungenye yezinqubo eziphambili ekucutshungweni komkhiqizo werabha, futhi futhi kuyisinyathelo sokugcina sokusebenza ekukhiqizeni umkhiqizo werabha. Kule nqubo, irabha lithola uchungechunge lwezinguquko eziyinkimbinkimbi zamakhemikhali, kusuka ku-rubber epulasitiki kuya kwirabha eligcwele kakhulu noma elinogqozi oluxhumeke kahle, ukuze kuthuthukiswe izakhiwo eziphelele zomzimba, ezenziwe ngomshini, futhi uthuthukise inani lokusebenzisa kanye nohlobo lwezinto zohlelo lokusebenza lwenjoloba. Ngakho-ke, i-Vulcan ibaluleke kakhulu ekwenziweni nokusetshenziswa kwenjoloba nemikhiqizo yayo.
Umqondo we-Vulcanization
I-Vulcanization ibhekisela kumkhiqizo oqediwe owenziwe ngezinto zokwakha irabha ngeplastiki ethile nokubonakala (irabha eluhlaza, i-rup yenqubo, ukukhishwa kwepulasitiki (okufana nenqubomgomo yokuguqula imiphumela ye-radiation emuva emikhiqizweni ethambile enjoloba noma imikhiqizo enjoloba kanzima ukuze Thola ukusebenza kusetshenziswe. Ngesikhathi senqubo yokuvuselela, izimo zangaphandle (njengokushisa noma imisebe) kubangela ukusabela kwamakhemikhali phakathi kwenjoloba eluhlaza okwesibhakabhaka kanye ne-ejera eluhlaza okwesibhakabhaka noma phakathi kwenjoloba eluhlaza okwesibhakabhaka kanye ne-ejera eluhlaza, okubangelwa ukuxhumeka kwama-macromoleks ahlelekile ahlelekile.
Ngalesi sivumelwano, izakhiwo ezahlukahlukene zenjoloba zithuthuke kakhulu, zinika amandla imikhiqizo yenjoloba ukuthola izinto zomzimba, ezenziwe ngomshini, nezinye izinto ezingahlangabezana nezidingo zokusetshenziswa komkhiqizo. Umnyombo we-Vulcan uxhumanisa ngokuxhumanisa, okuyinqubo yokuguqula izakhi zenjoloba zenjoloba elayini zibe izakhiwo zenethiwekhi yendawo.
Inqubo yokuhlanza
Ngemuva kokulinganisa inani le-ejenti ehlanganisiwe ne-Vulcaning e-ejenti, isinyathelo esilandelayo ukufaka i-ejenti ye-Vulcaning. Kunconywa ukulandela lezi zinyathelo ezilandelayo okufanele uziqede.
1. Okokuqala, hlanza isigaye sokuvula ukuze kuqinisekiswe inhlanzeko yayo ukuvikela ukuxubeka kokunye ukungcola. Ngemuva kwalokho lungisa i-roller pitch yokuvula isigayo esincane bese uthele irabha elixubile esigangeni esivula sokudlula okuncanyana. Ngemuva kokuthi ukudluliswa okuncanyana sekuqediwe, ukuhlukaniswa kwe-roll of the mixer kufanele kukhuliswe ngokufanelekile ukuze kuqinisekiswe ukuthi irabha elixubile ligoqwe ngokulinganayo kuma-rolls. Amazinga okushisa aphezulu enjoloba ahlanganisiwe kufanele abe cishe ngo-80oc.
2. Ngokushintsha i-roller pitch namanzi apholile ngokufanele, izinga lokushisa lerabha elihlanganisiwe lilawulwa cishe ngo-60-80 ° C. Okwamanje, i-ejenti ye-Vulcanizer yaqala ukungezwa kurabha elihlanganisiwe.
Isikhathi Sokuthumela: Oct-25-2023
