Mu nganda zikoreshwa mu nganda, guhitamo ibikoresho ni ngombwa kugirango hamenyekane igihe kirekire, imikorere, nigiciro-cyiza. Ibikoresho bibiri bikoreshwa cyane ni reberi ya nitrile (NBR) na Ethylene propylene diene monomer (EPDM). Mugihe ibikoresho byombi bifite imiterere yihariye hamwe nibisabwa, gusobanukirwa itandukaniro ryabo nibyingenzi muguhitamo ibikoresho bikwiye kubyo ukeneye.
Ibigize nibintu
NBR ni copolymer ikozwe muri acrylonitrile na butadiene. Ibiri muri acrylonitrile muri NBR mubusanzwe biri hagati ya 18% na 50%, bigira ingaruka kumurwanya wamavuta hamwe nubukanishi. NBR izwiho kurwanya cyane amavuta, lisansi nindi miti, bigatuma iba ibikoresho byo guhitamo amamodoka ninganda zikunze guhura nibi bintu. NBR ifite kandi imbaraga zingirakamaro, kurwanya abrasion no guhinduka, ningirakamaro kuri kashe, gaseke na hose.
Ku rundi ruhande, EPDM, ni terpolymer ikozwe muri Ethylene, propylene, hamwe na diene. Iyi miterere idasanzwe itanga EPDM irwanya ikirere cyiza, ituze rya UV, hamwe na ozone. EPDM irakwiriye cyane cyane mubikorwa byo hanze nko gusakara ibisenge, kugendesha ikirere cyimodoka, hamwe na kashe ikeneye kwihanganira ibidukikije bibi. Byongeye kandi, EPDM ikomeza guhinduka mubushyuhe buke, bigatuma ihitamo neza kubihe bikonje.
Kurwanya ubushyuhe
Ubushyuhe bwo hejuru ni irindi tandukaniro rikomeye hagati ya NBR na EPDM. NBR muri rusange ikora neza mubushyuhe bwa -40 ° C kugeza 100 ° C (-40 ° F kugeza 212 ° F), bitewe nuburyo bwihariye. Ariko, kumara igihe kinini mubushyuhe bwinshi birashobora gutera kwangirika. Ibinyuranye na byo, EPDM irashobora kwihanganira ubushyuhe bwagutse, kuva kuri -50 ° C kugeza kuri 150 ° C (-58 ° F kugeza 302 ° F), bigatuma ihitamo neza kubisabwa bisaba ubuhanga bukomeye mubihe bikabije.
Kurwanya imiti
Kubijyanye no kurwanya imiti, NBR ikora neza mubidukikije birimo amavuta na lisansi. Bitewe nubushobozi bwayo bwo guhangana n’ibicuruzwa bishingiye kuri peteroli, NBR ikoreshwa kenshi mu nganda z’imodoka mu bubiko bwa peteroli, O-impeta, na kashe. Nyamara, NBR ifite imbaraga nke zo guhangana na polar solide, acide, cyangwa base, bishobora gutera kubyimba cyangwa kwangirika.
Ku rundi ruhande, EPDM irwanya cyane amazi, amavuta, hamwe n’imiti myinshi, harimo aside na base. Ibi bituma biba byiza mubikorwa byo gutunganya imiti no kubikoresha hanze aho usanga bikunze guhura nubushuhe. Nyamara, EPDM ntabwo ikwiriye gukoreshwa hamwe namavuta na lisansi, kuko irabyimba ikabura imiterere yubukanishi.
Porogaramu
Porogaramu ya NBR na EPDM yerekana imiterere yihariye. NBR ikoreshwa cyane muri sisitemu ya lisansi, gasketi hamwe na kashe mumashanyarazi, hamwe nibikorwa byinganda nka kashe ya peteroli na hose. Kurwanya amavuta kwayo bituma biba nkenerwa mubidukikije bigaragaramo ibikomoka kuri peteroli.
Ibinyuranye, EPDM ikwiranye neza nibisabwa bisaba guhangana nikirere, nko gusakara, kashe ya idirishya, hamwe no kwambura ikirere imodoka. Kurwanya UV na ozone bituma biba byiza gukoreshwa hanze, byemeza kuramba no gukora ndetse no mubihe bibi.
Muncamake, guhitamo ibikoresho bya NBR na EPDM biterwa nibisabwa bikenewe. NBR ni ibikoresho byo guhitamo amavuta na peteroli, mugihe EPDM irusha izindi porogaramu zisaba ikirere na ozone. Gusobanukirwa itandukaniro mubigize, imiterere, kurwanya ubushyuhe bwinshi, kurwanya imiti, hamwe nibisabwa bizafasha ababikora naba injeniyeri gufata ibyemezo byuzuye mugihe bahisemo ibikoresho bikwiye kugirango babone ibyo bakeneye.
Kingflex ifite ibicuruzwa byombi bya NBR na EPDM.Niba ufite ikibazo, nyamuneka wohereze iperereza kumurwi wa Kingflex umwanya uwariwo wose.
Igihe cyo kohereza: Gicurasi-15-2025
