Kuki reberi ikeneye guhindagurika?Ni izihe nyungu zo gutobora reberi?
Nubwo reberi mbisi ya rubber nayo ifite akamaro kanini ikoreshwa, ifite kandi ibibi byinshi, nkimbaraga nke na elastique nkeya;Ubukonje butuma bikomera, bishyushye bituma bikomera;Byoroshye gusaza, nibindi. Nko mu myaka ya za 1840, byavumbuwe ko reberi ishobora kunyura mu kuyishyushya hamwe na sulferi.Kubwibyo, kugeza ubu, nubwo reberi ishobora guhuzwa gusa na sulferi gusa, ariko hamwe nubundi buryo bwinshi bwo guhuza imiti hamwe nuburyo bwumubiri nubumashini, munganda za reberi, burigihe byari bisanzwe bimenyerewe guhuza reberi nka "vulcanisation", mugihe inganda zitunganya plastike rimwe na rimwe zerekeza ku guhuza ibitekerezo nko gukiza.Vulcanisation itezimbere cyane imikorere ya reberi mbisi, yagura ikoreshwa rya reberi, kandi igashyiraho urufatiro rwo gukora inganda nini n’inganda zikoreshwa.
Rubber vulcanisation nimwe mubikorwa byingenzi mugutunganya ibicuruzwa, kandi nintambwe yanyuma yo gutunganya ibicuruzwa.Muri ubu buryo, reberi ihura nuruhererekane rwimiti ihindagurika, kuva mubuvanganzo bwa plastike kugeza kuri reberi yoroheje cyane cyangwa ikomeye ihuza reberi, kugirango ubone ibintu byuzuye byumubiri, ubukanishi nubumashini, no kunoza no kwagura agaciro no gukoresha. urutonde rwibikoresho.Kubwibyo, ibirunga bifite akamaro kanini mugukora no gukoresha reberi nibicuruzwa byayo.
Igitekerezo cyo kurunga
Vulcanisation bivuga ibicuruzwa byarangije gukorwa bikozwe mubikoresho bya reberi bifite plastike nubukonje runaka (reberi mbisi, plastike ivanze, reberi ivanze) binyuze muburyo bukwiye (nko kuzunguruka, gusohora, kubumba, nibindi) mubihe bimwe na bimwe byo hanze, binyuze mumiti ibintu (nka sisitemu ya volcanisation) cyangwa ibintu bifatika (nka γ Inzira yo guhindura ingaruka zimirasire igasubira mubicuruzwa byoroshye bya reberi byoroshye cyangwa ibicuruzwa bya reberi kugirango ubone imikorere ikoreshwa. Mugihe cyibirunga, ibintu byo hanze (nko gushyushya cyangwa imirasire) itera imiti hagati ya reberi mbisi mubikoresho bya reberi hamwe na agent ya volcanizing cyangwa hagati ya reberi mbisi na reberi mbisi, bikavamo guhuza umurongo wa rubber macromolecules mumurongo wibice bitatu byubatswe na macromolecules.
Binyuze muri iki gisubizo, ibintu bitandukanye bya reberi byatejwe imbere cyane, bituma ibicuruzwa bya reberi bibona umubiri, ubukanishi, nibindi bintu bishobora guhuza ibikenerwa byo gukoresha ibicuruzwa.Intangiriro yibirunga ni uguhuza, aribwo buryo bwo guhindura umurongo wa reberi ya molekulari muburyo bwimiterere.
Inzira ya sulfure
Nyuma yo gupima ingano ya reberi ivanze na agent ya volcanizing, intambwe ikurikira nukwongeramo agent.Birasabwa gukurikiza intambwe zikurikira kugirango urangize.
1. Ubwa mbere, sukura urusyo rufungura kugirango ugire isuku kugirango wirinde kuvanga indi mwanda.Noneho hindura ikibanza cya roller cyuruganda rufungura byibuze hanyuma usukemo reberi ivanze mumashini ifungura kugirango byoroshye.Nyuma yinzira yoroheje irangiye, umwanya wizunguruka wa mixer ugomba kwagurwa muburyo bukwiye kugirango reba neza ko reberi ivanze ipfunyitse neza.Ubushyuhe bwo hejuru bwa reberi ivanze bugomba kuba hafi 80oC.
2. Muguhindura ikibuga cya roller hamwe namazi akonje bikwiye, ubushyuhe bwa reberi ivanze bugenzurwa nka 60-80 ° C. Kuri ubu, umukozi w’ibirunga atangira kongerwamo reberi ivanze.
Igihe cyo kohereza: Ukwakira-25-2023