Ni irihe tandukaniro riri hagati y'ibikoresho bya NBR na EPDM?

Mu nganda, guhitamo ibikoresho ni ingenzi cyane kugira ngo birambe, imikorere, kandi bigire akamaro ku giciro. Ibikoresho bibiri bikunze gukoreshwa mu buryo bwa “synthetic rubber” ni “nitrile rubber” (NBR) na “ethylene propylene diene monomer” (EPDM). Nubwo ibikoresho byombi bifite imiterere yabyo yihariye n'uburyo bikoreshwa, gusobanukirwa itandukaniro ryabyo ni ingenzi mu guhitamo ibikoresho bikwiye ku bikenewe byihariye.

Ibikoresho n'imiterere

NBR ni copolymer ikozwe muri acrylonitrile na butadiene. Ubusanzwe acrylonitrile iri muri NBR iri hagati ya 18% na 50%, ibyo bikaba bigira ingaruka ku burwanyi bwayo bwa peteroli n'imiterere ya mekanike. NBR izwiho uburwanyi bwayo bwiza ku mavuta, ibikomoka kuri peteroli n'ibindi binyabutabire, bigatuma iba ibikoresho bikoreshwa mu modoka no mu nganda akenshi bihura n'ibi bintu. NBR ifite kandi imbaraga nziza zo gukurura, uburwanyi bwo kwangirika no koroha, ibi bikaba ari ingenzi cyane ku byuma bifunga, gaskets n'imiyoboro.

Ku rundi ruhande, EPDM ni terpolymer ikozwe muri ethylene, propylene, n'igice cya diene. Iyi miterere idasanzwe ituma EPDM idashobora guhangana n'ikirere neza, idashobora kugwa mu mirasire y'izuba, ndetse ikanarwanya ozone. EPDM ikwiriye cyane gukoreshwa hanze nko mu gusakara ibisenge, mu gucana ikirere mu modoka, no mu gufunga bigomba kwihanganira ibidukikije bikomeye. Byongeye kandi, EPDM iguma yoroshye mu bushyuhe buke, bigatuma iba amahitamo meza yo gukoreshwa mu gihe cy'ubukonje.

Ubudahangarwa bw'ubushyuhe

Ubudahangarwa bw'ubushyuhe bwinshi ni irindi tandukaniro rikomeye hagati ya NBR na EPDM. NBR muri rusange ikora neza mu bushyuhe buri hagati ya -40°C na 100°C (-40°F na 212°F), bitewe n'uburyo runaka. Ariko, kumara igihe kirekire uhuye n'ubushyuhe bwinshi bishobora kwangirika. Mu buryo bunyuranye, EPDM ishobora kwihanganira ubushyuhe bwinshi, kuva kuri -50°C kugeza 150°C (-58°F kugeza 302°F), bigatuma iba amahitamo meza ku bikoresho bisaba ubushyuhe bwinshi mu bihe bikomeye.

Ubudahangarwa bw'imiti

Ku bijyanye no kudakora neza mu binyabutabire, NBR ikora neza mu bidukikije birimo amavuta n'ibicanwa. Bitewe n'ubushobozi bwayo bwo kwihanganira ibikomoka kuri peteroli, NBR ikunze gukoreshwa mu nganda z'imodoka mu miyoboro ya lisansi, impeta za O, n'ibifunga. Ariko, NBR ifite ubudahangarwa buke ku bintu bisukura, aside, cyangwa base, bishobora gutuma ibyimba cyangwa ikangirika.

Ku rundi ruhande, EPDM irwanya cyane amazi, umwuka w'amazi, n'ibindi bintu bitandukanye birimo aside na base. Ibi bituma iba nziza cyane mu nganda zitunganya imiti ndetse no mu bikorwa byo hanze aho ikunze guhura n'ubushuhe. Ariko, EPDM ntikwiriye gukoreshwa hamwe n'amavuta n'ibicanwa, kuko irabyimba kandi igatakaza ubushobozi bwayo bwo gukora.

ubusabe

Gukoresha NBR na EPDM bigaragaza imiterere yayo yihariye. NBR ikoreshwa cyane mu buryo bwa lisansi, gasket na seal mu rwego rw'imodoka, ndetse no mu nganda nko gufunga peteroli n'imiyoboro y'amazi. Kurwanya peteroli yayo bituma iba ingenzi cyane mu bidukikije byangiritse ku bikomoka kuri peteroli.

Mu buryo bunyuranye, EPDM ikwiriye cyane gukoreshwa mu bintu bisaba ubushobozi bwo guhangana n’ikirere, nko gupfuka ibisenge, gufunga amadirishya, no gupfuka ikirere cy’imodoka. Ubudahangarwa bwayo ku mirasire y’izuba na ozone butuma iba nziza cyane mu ikoreshwa ryo hanze, bigatuma iramba kandi igakora neza nubwo haba mu bihe bikomeye.

Muri make, guhitamo ibikoresho bya NBR na EPDM biterwa n'ibikenewe byihariye. NBR ni ibikoresho bikoreshwa cyane mu kurwanya peteroli na lisansi, mu gihe EPDM ikora neza mu gukoresha ibisaba kurwanya ikirere na ozone. Gusobanukirwa itandukaniro mu miterere, imiterere, kurwanya ubushyuhe bwinshi, kurwanya imiti, n'imikoreshereze bizafasha abakora ibikoresho n'abahanga gufata ibyemezo bisobanutse neza mu guhitamo ibikoresho bikwiye bihuye n'ibyo bakeneye.

Kingflex ifite ibikoresho bya NBR na EPDM byo gukingira. Niba ufite ikibazo icyo ari cyo cyose, nyamuneka wohereze ikibazo cyawe ku ikipe ya Kingflex igihe icyo ari cyo cyose.