Ingaruka zidasanzwe za fluoroelastomer (FKM) ni ubukana buke bwubushyuhe. Ubushyuhe buke bwo gukuramo ubushyuhe (TR10) bwa binary FKM muri rusange -18 kugeza -16 and, naho ubushyuhe bwikirahure (Tg) ni -20 ℃; ubushyuhe buke bwo guhangana na ternary FKM burakennye kuruta ubwa binary FKM. Ubwoko budasanzwe bwubushyuhe bwa FKM bufite imbaraga zo kurwanya ubushyuhe buke, ariko igiciro kiri hejuru cyane.
FKM muri ASTM D 2000-2012 'ibinyabiziga byo mu bwoko bwa reberi yimodoka isanzwe yo gushyira mu byiciro ' byo mu cyiciro cya M2, M5, M6 bisabwa kugira ngo batsinde ikizamini cyo hasi y’ubushyuhe bwa F15 (-25 ℃), ibicuruzwa byo mu rwego rwa M4 bisabwa kugira ngo batsinde ikizamini cyo hasi cya F17 (-40 ℃). Mu myaka yashize, ibicuruzwa byinshi kandi byinshi bya FKM birasabwa kugira ngo byuzuze ibisabwa byombi birwanya ubushyuhe bwo hejuru (250-275 ℃) hamwe n’ubushyuhe buke F15 cyangwa F17. Inzira nziza ni ugukoresha ubushyuhe buke FKM, nkubushyuhe bwubushyuhe bwa -45 ~ -40 type Ubwoko bwa Viton GLT FKM, ariko iyi FKM yubushyuhe bwo hejuru irakennye kandi igiciro kiragoye kugirango isoko ryemerwe. Mugutezimbere imikorere ya binarike FKM irashobora icyarimwe guhuza ibisabwa byo kurwanya ubushyuhe buke kandi bwo hejuru, kandi ikiguzi nacyo kirumvikana, cyahindutse ahantu hashyushye mubushakashatsi.
Uru rupapuro rusesengura ibiranga imikorere ya FKM yubushyuhe buke bwa Tg, TR10 nubushyuhe bukabije (Tbri) yumubano uri hagati yabanyeshuri barangije icyiciro cya mbere, kuzuza, kuvanga inzira, nibindi kuri binary na ternary FKM ifata ubushyuhe buke bwubushyuhe bwo gutegura ibipimo bifatika bya FKM kugirango bitange ibisobanuro!
1. Kuranga FKM imiterere yubushyuhe bwo hasi
Rubber ifite ihindagurika ridasubirwaho, irashobora kubyara ihinduka rinini munsi yimbaraga ntoya yo hanze, kandi irashobora gusubizwa uko yari imeze nyuma yo gukuraho imbaraga ziva hanze, bityo ikoreshwa cyane. Nyamara, uko ubushyuhe bugabanuka, elastique ya reberi igenda yangirika buhoro buhoro, kandi iyo igeze muri Tg, reberi itakaza ubuhanga bwayo ikananirwa. Kubera ibicuruzwa bitandukanye bya reberi, mugikorwa cyo gukoreshwa birashobora gukorerwa ingaruka, impagarara, kogosha, torsion, gukuramo, gukuramo, nibindi, imikorere yacyo yo hasi yubushyuhe igomba kuba ishingiye kumikorere yayo kugirango ihitemo uburyo bukwiye bwo gukora ibizamini. Uburyo bukoreshwa muburyo bwo gupima ubushyuhe buke burimo uburyo bwa test ya Tg, ikizamini cyubushyuhe bwubushyuhe, ikigereranyo cyo kugabanya ubushyuhe buke, ikizamini cyo hasi yubushyuhe bwo hasi (ikizamini cya Gimen), kurwanya ikizamini cyo kurambura no gukonjesha ubukonje, ikizamini cyo hasi yubushyuhe bukabije, kugabanuka k'ubushyuhe buke guhindagurika no guhagarika umutima, n'ibindi.
Ubushyuhe buke bwa FKM burashobora kurangwa na Tg, Tbri, TR10 na Torsion Ubushyuhe buke (TGem), nibindi. Ibi bipimo bifite ibisobanuro bitandukanye ariko bifite isano runaka hagati yabyo.
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. Inguni ya torsion ya reberi ukurikije ihindagurika ryubushyuhe irashobora gusuzuma imikorere yubushyuhe buke, mubisanzwe byerekana ubushyuhe buke aho reberi ikomeza ubuhanga bwayo.
2 FKM Tg, TR10 nubusabane hagati ya Tbri
Bikunze gukoreshwa FKM yubushyuhe buke bwo gukora ibipimo ni Tg, TR10 na Tbri, uwabitanze mubisanzwe afata ibipimo Tg na TR10, ASTM ifata ibipimo bya Tbri, hariho itandukaniro nubusabane hagati yibi bitatu.
2. 1 Isano iri hagati ya Tg na TR10
TR10 ya buri cyiciro cya FKM yegereye Tg (itandukaniro ntirenze 3 ℃), byerekana ko Tg na TR10 byombi bishobora kwerekana ubushyuhe buke hamwe nubushyuhe bwa leta bwikirahure cyurunigi rwa molekile.
2.2 Isano iri hagati ya fluor ya FKM hamwe nubushyuhe bwo hasi
Mubisanzwe binini na ternary FKM, TR10 yiyongera hamwe no kwiyongera kwa fluor; iyo monomer ya kane, PMVE, itangijwe, ibiyirimo bigira ingaruka zikomeye kuri TR10.
Ibirimo bifite uruhare runini kuri TR10. Nubwo kwiyongera kwibintu bya fluor bishobora kuzamura urugero rwo hejuru rwa FKM ikoresha ubushyuhe, ariko mugihe kimwe, kubera umugozi wa CF usimbuza umurunga wa CH, bikagabanya ubworoherane bwurunigi rwa molekile hamwe nubushyuhe buke bwa reberi.
2.3 Ingaruka zuzuza kumiterere yubushyuhe bwo hasi bwibintu bya FKM
Carbone umukara N774 ifata ifite Tbri yo hasi kandi irwanya ubushyuhe buke; zinc oxyde yifata ifite Tbri ndende kandi irwanya ubushyuhe buke cyane; imikorere yubushyuhe bwo hasi yubwoko butanu bwamavuta ntibitandukanye cyane. Nyuma yo gusesengura, nyuma yo kongeramo ibyuzuzo bitandukanye, ikinyuranyo nuburyo hagati yiminyururu ya FKM iratandukanye, kandi imikorere yubushyuhe bwo hasi yubushyuhe iratandukanye.
Nyuma yo gusesengura, nyuma yo kongeramo ibyuzuzo bitandukanye, icyuho nuburyo hagati yiminyururu ya molekile ya FKM iratandukanye, kandi imiterere ijyanye nubushyuhe bwo hasi yubushyuhe iratandukanye, kandi uwuzuza hamwe na reberi nkeya afite ibinini binini kandi birwanya ubushyuhe buke.
2.4 Ingaruka zo kuvanga inzira kumiterere yubushyuhe buke bwimiterere ya FKM
Uburyo bwo kuvanga nabwo bugira ingaruka kumiterere yubushyuhe bwo hasi bwibintu bya FKM. Plastike mbere yo kuvanga irashobora kubona reberi ya molekile ihinduka neza
Ubushyuhe buke bwo kurwanya uruganda burashobora kunozwa mugukora plastike mbere yo kuvanga. Ubuvuzi bworoheje nyuma yubuvumo buhagaritswe burashobora kunoza imitekerereze yuzuza hamwe nuwuzuzanya, kandi bikazamura ubushyuhe buke. Mubisanzwe, nukuvuga igihe kirekire, niko igabanuka rya Mooney rya reberi. Kongera umubare wigihe cyo kubumba bizagabanya Tg ya reberi, ariko phenomenon ntabwo ikomeye, kandi nta tandukaniro rikomeye riri hagati ya Tg na Tbri ya reberi ya FKM numubare utandukanye wibihe.
3 Umwanzuro
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ni munsi ya Tg na TR10.
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(3) reberi ya FKM yuzuye karubone yumukara N774 ifite ubukana buke buke; reberi hamwe na bike byuzuza bifite gel nyinshi kandi birwanya ubushyuhe buke.
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