Ibikoresho bisanzwe bya rubber——Ibiranga EPDM
Akamaro:
Ubudasaza bwiza cyane, budasaza ... mu buryo bw'amashanyarazi, budasaza mu buryo bw'imiti ndetse n'ubudasaza mu buryo bw'ingaruka.
Ibibi:
Umuvuduko wo gushya buhoro; Biragoye kuvanga n'izindi mashini zidafite amazi, kandi uburyo bwo kwifata no gufatana ni bubi cyane, bityo imikorere yo gutunganya ikaba mibi.
Ningbo Yokey Automotive Parts Co., Ltd yibanda ku gukemura ibibazo by'ibikoresho by'umukara ku bakiriya no gushushanya imiterere itandukanye y'ibikoresho hashingiwe ku buryo butandukanye bwo kubikoresha.
Imitungo: ibisobanuro birambuye
1. Ubucucike buke kandi kuzuza byinshi
Rubber ya ethylene propylene ni ubwoko bwa rubber ifite ubucucike buri hasi bwa 0.87. Byongeye kandi, amavuta menshi ashobora kuzuzwa kandi hakongerwamo amavuta yo kwisiga, ibyo bikaba byagabanya ikiguzi cy'ibicuruzwa bya rubber kandi bigatanga igiciro kinini cya rubber mbisi ya ethylene propylene. Byongeye kandi, kuri rubber ya ethylene propylene ifite agaciro kanini ka Mooney, ingufu zifatika n'iza mashini nyuma yo kuzuzwa cyane ntizizagabanuka cyane.
2. Ubudahangarwa ku gusaza
Rubber ya ethylene propylene ifite ubushobozi bwo kurwanya ikirere neza, kurwanya ozone, kurwanya ubushyuhe, kurwanya aside na alkali, kurwanya umwuka w'amazi, kudahinduka kw'amabara, imikorere y'amashanyarazi, kuzuza amavuta no kugenda kw'ubushyuhe bw'icyumba. Ibikoresho bya ethylene propylene bishobora gukoreshwa igihe kirekire kuri 120 ℃, kandi bishobora gukoreshwa igihe gito cyangwa rimwe na rimwe kuri 150 - 200 ℃. Ubushyuhe bwo gukoreshwa bushobora kongerwaho antioxydant ikwiye. EPDM ihujwe na peroxide ishobora gukoreshwa mu bihe bikomeye. Iyo igipimo cya ozone cya EPDM ari 50 pphm kandi igihe cyo kuyihagarika kikaba 30%, EPDM ishobora kugera ku masaha 150 idacitse.
3. Ubudahangarwa bw'inkongi
Bitewe n'uko ibura polarity no kudashyira amazi mu kirere bya ethylene propylene, ifite ubushobozi bwo kurwanya imiti itandukanye nka alcool, aside, alkali, oxydant, refrigerant, detergent, amavuta y'amatungo n'ibikomoka ku bimera, ketone na grease; Ariko, ifite ubushobozi buke mu bintu birimo amavuta n'ibinure (nka lisansi, benzene, nibindi) n'amavuta ya mineral. Imikorere yayo izagabanuka bitewe n'imikorere y'igihe kirekire ya aside irimo ingano. Muri ISO/TO 7620, amakuru ku ngaruka z'imiti hafi 400 ihumanya ikirere n'amazi ku miterere y'imiti itandukanye ya plaque arakusanywa, kandi amanota ya 1-4 aragaragazwa kugira ngo agaragaze ingaruka zayo. Ingaruka z'imiti ya plaque ku miterere y'imiti ni izi zikurikira:
Ingaruka zo kugabanya ubukana bw'ubwinshi bw'ingano/% ku miterere y'umubiri
1<10<10 Bito cyangwa nta na kimwe
2 10-20<20 ntoya
3 30-60<30 Hagati
4>60>30 bikomeye
4. Kurwanya umwuka w'amazi
EPDM ifite ubushobozi bwo guhangana n'umwuka mwiza kandi bivugwa ko irusha ubushyuhe bwayo imbaraga. Mu mwuka ushyushye cyane wa 230 ℃, isura ntihinduka nyuma y'amasaha hafi 100. Ariko, muri ubwo buryo, isura ya fluorine rubber, silicon rubber, fluorosilicone rubber, butyl rubber, nitrile rubber na natural rubber yangiritse cyane mu gihe gito.
5. Kurwanya amazi ashyushye cyane
Umupira wa ethylene propylene nawo urwanya amazi ashyushye cyane, ariko ufitanye isano rya bugufi n'uburyo bwose bwo gukurura. Imiterere ya ethylene propylene rubber (EPR) yavunitse hamwe na dimorphine disulfide na TMTD ntiyahindutse cyane nyuma yo kwinjizwa mu mazi ashyushye cyane mu gihe cy'amezi 15, kandi igipimo cyo kwaguka cyari 0.3% gusa.
6. Imikorere y'amashanyarazi
Rubber ya ethylene propylene ifite ubushobozi bwo gukingira amashanyarazi no kurwanya corona, kandi imiterere yayo y'amashanyarazi iruta cyangwa yegereye cyane iya styrene butadiene rubber, chlorosulfonated polyethylene, polyethylene na cross-linked polyethylene.
7. Gukomera
Kubera ko ethylene propylene rubber idafite polari isimbura imiterere yayo ya molekile n'ingufu nke zo guhuza molekile, uruhererekane rwayo rwa molekile rushobora kugumana ubworoherane mu buryo bwagutse, rukaba ari urwa kabiri nyuma ya rubber karemano na cis polybutadiene rubber, kandi rushobora gukomeza kubaho mu bushyuhe buri hasi.
8. Gufata neza
Bitewe n'uko nta matsinda akora mu miterere ya molekile ya ethylene propylene rubber, ingufu zo guhuza ni nke, kandi rubber yoroshye kuyitera, bityo kwifata no gufatana ni bike cyane.
Igihe cyo kohereza: Ukwakira 10-2022