Ibikoresho bisanzwe bya reberi —— Ibiranga EPDM

Ibikoresho bisanzwe bya reberi —— Ibiranga EPDM

Ibyiza:
Kurwanya gusaza cyane, kurwanya ikirere, kubika amashanyarazi, kurwanya ruswa no kurwanya ingaruka.

Ibibi:
Kwihuta gukira; Biragoye kuvanga nibindi byuma bidahagije, kandi kwishyira hamwe no gufatana ni bibi cyane, imikorere yo gutunganya rero ni mibi.

Ningbo Yokey Automotive Parts Co., Ltd yibanda mugukemura ibibazo byabakiriya ba reberi no gushushanya ibintu bitandukanye bishingiye kubintu bitandukanye.

Ibyiza: ibisobanuro
1. Ubucucike buke no kuzura cyane
Ethylene propylene reberi ni ubwoko bwa reberi ifite ubucucike buke bwa 0.87. Byongeye kandi, amavuta menshi arashobora kuzuzwa no kuzuza ibyongeweho, bishobora kugabanya igiciro cyibicuruzwa bya reberi kandi bigatanga igiciro cyinshi cya reberi mbisi ya reberi ya etylene propylene. Mubyongeyeho, kuri etylene propylene reberi ifite agaciro gakomeye ka Mooney, ingufu zumubiri nubukanishi nyuma yo kuzura cyane ntizagabanuka cyane.

2. Kurwanya gusaza
Rubber ya Ethylene propylene ifite uburyo bwiza bwo guhangana nikirere, kurwanya ozone, kurwanya ubushyuhe, aside na alkali, kurwanya imyuka y’amazi, guhagarara neza kwamabara, imikorere yamashanyarazi, kuzuza amavuta hamwe nubushyuhe bwicyumba. Ibicuruzwa bya reberi ya Ethylene birashobora gukoreshwa igihe kirekire kuri 120 and, kandi birashobora gukoreshwa mugihe gito cyangwa rimwe na rimwe kuri 150 - 200 ℃. Gukoresha ubushyuhe burashobora kwiyongera wongeyeho antioxydants ikwiye. EPDM ihujwe na peroxide irashobora gukoreshwa mubihe bibi. Iyo ozone yibanze ya EPDM ni 50 pphm naho igihe cyo kurambura ni 30%, EPDM irashobora kugera kuri 150 h idacitse.

3. Kurwanya ruswa
Bitewe no kubura polarite no kudahaza kwa reberi ya Ethylene propylene, ifite imbaraga zo kurwanya imiti itandukanye ya polar nka alcool, aside, alkali, okiside, firigo, detergent, amavuta y’inyamanswa n’ibimera, ketone n’amavuta; Nyamara, ifite umutekano muke mumashanyarazi n'ibinure (nka lisansi, benzene, nibindi) hamwe namavuta yubutare. Imikorere nayo izagabanuka mubikorwa birebire bya acide yibanze. Muri ISO / TO 7620, amakuru ku ngaruka ziterwa n’imiti igera kuri 400 yangiza imyuka ya gaze na mazi yangiza ku miterere ya reberi zitandukanye, hamwe n’amanota 1-4 yerekanwe kugira ngo yerekane ingaruka zabyo. Ingaruka z'imiti yangirika ku miterere ya reberi niyi ikurikira:

Ingaruka Yumubare Wibyimba Igipimo /% Kugabanuka Gukomeye Kubintu
1 <10 <10 Buhoro cyangwa ntayo
2 10-20 <20 ntoya
3 30-60 <30 Hagati
4> 60> 30 bikomeye

4. Kurwanya imyuka y'amazi
EPDM ifite imbaraga zo guhangana n’amazi kandi byagereranijwe ko iruta ubushyuhe bwayo. Muri 230 steam ubushyuhe bukabije, isura ntabwo ihinduka nyuma yamasaha 100. Ariko, mubihe bimwe, isura ya fluorine, reberi ya silicon, reberi ya fluorosilicone, butyl rubber, nitrile reberi na reberi karemano byangiritse cyane mugihe gito.

5. Kurwanya amazi ashyushye
Rubber ya Ethylene propylene nayo ifite imbaraga zo kurwanya amazi ashyushye, ariko ifitanye isano rya hafi na sisitemu zose z’ibirunga. Imiterere ya mashini ya etylene propylene reberi (EPR) yandujwe na dimorphine disulfide na TMTD ntabwo byahindutse nyuma yo kwibizwa mumazi 125 ℃ ashyushye mumezi 15, kandi umuvuduko wo kwaguka wari 0.3% gusa.

6. Imashanyarazi
Rubber ya Ethylene propylene ifite amashanyarazi meza kandi irwanya corona, kandi ibikoresho byayo byamashanyarazi birarenze cyangwa hafi ya reberi ya styrene butadiene, chlorosulfonated polyethylene, polyethylene na polyethylene.

7
Kubera ko reberi ya Ethylene propylene idafite insimburangingo ya polar mu miterere yayo ya molekile hamwe n’ingufu nkeya za cohesion, urunigi rwa molekile rushobora gukomeza guhinduka mu buryo bwagutse, nyuma ya reberi karemano na cis polybutadiene, kandi irashobora gukomeza ku bushyuhe buke.

8
Bitewe no kubura amatsinda akora muburyo bwa molekuline ya etylene propylene reberi, ingufu za cohesion ziri hasi, kandi reberi yoroshye kuyitera, kubwibyo kwizirika hamwe no gufatana ni bibi cyane.