Imfashanyigisho yo Guhitamo Amavuta ya Grease meza
Muri iki gihe, hari ubwoko bwinshi bw’amavuta ya grease aboneka ku isoko, buri bwoko bukaba bwakozwe hagamijwe gukemura ibibazo bitandukanye. Kugira ubumenyi bw’ibanze kuri grease no ku ikoreshwa ryayo ni ingenzi mu gufata umwanzuro ukwiye. Mbere yo gutangira, ni byiza gusobanukirwa neza grease icyo ari cyo.
Grease ikora nk'uko crème y'izuba irinda imashini, kuko itwikira imashini igakora nk’inkuta zifatiraho amavuta n’indi miti iyongerwamo. Nk'uko crème y’izuba uyisiga ku ruhu, grease nayo ifata ku bice by’imashini, ikagumisha amavuta n’ibindi byongerwamo bifasha muri kunyereza (lubrication). Ibi bituma igira ubushobozi bwo gukomeza kunyereza mu macshini amavuta neza, kabone n’iyo ubushyuhe bwahinduka, nk’uko crème y’izuba irinda uruhu imirasire y’izuba.
Ariko se grease igizwe n’iki?
Ibikomeza grease bishobora kugabanywamo ibyiciro bibiri: ibikomeza bishingiye ku isabune (soap thickeners) n’ibidafite ishingiro ry’isabune (non-soap thickeners).
Rymax ikora muri ibyo byiciro byombi, igaragaza akamaro ko guhitamo neza igikomeza grease. Ubu buryo bwo guhitamo bugira ingaruka ku bintu nk’ubushyuhe imashini iri gukoreraho, umuvuduko, no guhuza na za materiali zitandukanye. Nk'uko uhitamo amavuta atandukanye ku moteri y’imodoka yawe no kuri buwate ya vitensi (gearbox) yayo, guhitamo igikomeza grease kiboneye ni ingenzi kugira ngo ikore neza.
Hasi aha hari igishushanyo kigaragaza ubwoko butandukanye bw’ibikomeza grease n'ukuntu bikora mu bihe bitandukanye.
Iyo uhitamo grease ikwiye gukoresha ahantu hatandukanye, hari ibintu bimwe by’ingenzi ugomba gutekerezaho. Reka turebere hamwe ibi bintu kugirango ugire ubumenyi bwimbitse ku buryo wahitamo grease iboneye ku byo ukeneye.
- visicosite y’amavuta shingiro (Base Oil Viscosity):
visikosite y’amavuta ari muri grease, buzwi nka base oil viscosity, ni ingenzi mu mikorere yayo. Grease ifite amavuta shingiro yoroshye kandi afite viscosity nto ni nziza ku bice byihuta cyane, bidaterura imitwaro iremereye, kandi bikorera ahantu hakonje. Iyi grease ituma ibice byimuka neza ntamananiza akabije. Ku rundi ruhande, grease ifite amavuta shingiro manini kandi afite viscosity iri hejuru ni nziza ku bice byimuka gahoro, bitwara imitwaro iremereye, kandi bikorera ahantu hashyushye. Iyi grease ifasha ibice gukomeza gukora neza nubwo habayeho imbogamizi zitandukanye.
2. Ubwoko bw’icyuma gikonje n’uburebure bw’amavuta:
Nk’uko amavuta atandukanye afite ibyiciro bitandukanye (SAE), girise nayo bayishyira mubyiciro hajyendewe kumubyimba wayo. Urwego rwa NLGI (National Lubricating Grease Institute) rugerageza ubumenyi bwa girise, rukava ku byiciro 000 (biroroshye cyane) kugera ku 6 (biremereye cyane). Icyiciro cya 2 ni cyo gikunze gukoreshwa cyane kuko gikoreshwa ahantu henshi. Mu bicuruzwa byacu, uzabona ibyiciro bya NLGI 00, 0, 1, na 2. Ibi byiciro ni ingenzi kuko bigaragaza uburebure bw’amavuta ndetse n’aho byaba byiza gukoreshwa. Hasi ni ishusho isobanura ibyiciro bitandukanye by’amavuta.
Ubwoko bw’ubukomere bwa girise ni ingenzi, cyane cyane ku muvuduko no ku bipimo by’ubushyuhe bitandukanye. Amavuta ya lithium na lithium complex ni ayakunzwe gukoreshwa mu nganda kuko akora neza mu bihe bitandukanye. Andi mavuta akunze gukoreshwa ni lithium, calcium, aluminiyumu, calcium sulfonate, polyurea, n’amavuta ashingiye ku ibumba. Hasi ni indi shusho isobanura ubwoko butandukanye bw’amavuta (buvuzwe hejuru), imiterere y’ibanze yazo, ndetse n’aho akunze gukoreshwa.
3. Ibinyabuzima n'Amavuta Shingiro:
Ibinyabuzima ni ingenzi mu gukora amavuta, kuko byita ku byo bikeneye cyane nka ibisabwa ku gipimo cy’umuvuduko mwinshi (EP). Ibicuruzwa bya Rymax bigizwe cyane na girisi ashingiye kumunyu, bitanga uburambe mu bikorwa bitandukanye. Amavuta ya sintetike akenshi akoreshwa mu nganda cyangwa mu bikorwa byihariye bisaba igihe kinini cyo gukomeza cyo gukora.
Kumenya imiterere yihariye ya girisi bigufasha gufata umwanzuro w’ukuri ku byo ukeneye.
Amavuta ya Rymax, urugero, akubiyemo Ancal umushonga w’amavuta ashingiye ku kalsiyumu atarimo amazi. Ibi bitanga uburyo bwiza bw’imikoreshereze bwa girise ya lithium ku giciro gito, kandi bigatanga imikorere ihwanye. Niba ukora mu bice bikomeye cyangwa ushaka gusa amavuta yizewe kandi yifashishwa mu buryo bwinshi bitagoranye ku giciro, girisi ya Rymax ya Ancal ni amahitamo meza.
Igishushanyo kiri hasi gitanga ishusho nyayo yaho girise ya Rymax akora neza, bigatuma byorohera guhitamo girise ahuye n'ibyo ukeneye.
Ushingiye kungingo nka visikosite yamavuta, ububyimbe bw’amavuta n’inyongera musaruro bashyira mumavuta, guhtamo girise nyayo biroroha. Niba ukeneye andi menshi ajyanye na girise ya rymax wabaza ushinzwe ibicurzwa bya Rymax.
