Lub tshuab roj yog cov roj nplua nyeem ntau yam uas feem ntau siv rau lubricating maj mam thauj khoom, qis- nrawm, lossis nruab nrab- cov khoom siv tshuab nrawm. Nws cov yam ntxwv thiab kev siv tau dhau los ua tus qauv nrog kev tsim kho kev lag luam. Cov hauv qab no yog cov ntsiab lus tseem ceeb ntawm cov roj tshuab:
Txhais thiab Classification
Lub tshuab roj, luv luv rau Total Loss System Roj, yog hais txog cov roj lubricating uas siv ib zaug hauv cov khoom siv thiab tsis rov siv dua. Nws yog dav siv nyob rau hauv textile machinery, tshuab cuab yeej, me me motors, kiv cua, dej twj, thiab lwm yam khoom siv.
Raws li lub teb chaws tus qauv GB 443-1989 thiab GB 7631.10-92, cov roj tshuab tau muab faib ua ob peb qib raws li nws cov kinematic viscosity ntawm 50 degree, poob rau hauv qeb L-AN (Tag nrho Loss System Roj). Cov qib feem ntau suav nrog N5, N7, N10, N22, N32, N46, N68, N100, thiab N150.
High -cov roj tshuab ceev: Haum rau siab -ceev, lub teeb- cov khoom siv thauj khoom, xws li cov ntaub ntawv spindles (ceev mus txog 12000 rpm), nrog cov viscosity tsawg (xws li SAE 68).
Ordinary tshuab roj: Siv dav hauv cov cuab yeej siv tshuab, me me thiab nruab nrab- cov motors loj, hydraulic presses, thiab lwm yam, nrog rau kev khiav hauj lwm kub feem ntau qis dua 60℃.
Kev sib xyaw thiab kev tsim khoom
Lub tshuab roj yog tsim los ntawm refined ntxhia hauv paus roj nrog me me los yog tsis muaj additives. Nws cov khoom tseem ceeb yog roj av lubricating roj feem, purified los ntawm cov txheej txheem xws li dewaxing, hnyav refining, thiab av nplaum kho.
Cov qauv tsim muaj tsuas yog cov tshuaj antioxidants kom ncua cov roj oxidation thiab deterioration, tab sis feem ntau tsis hais txog kev tiv thaiv- hnav cov khoom, tiv thaiv xeb, lossis detergency thiab dispersancy.
Txheej txheem ntau lawm:
Kev xaiv cov khoom nyoos: Cov roj av feem ntau nrog qhov sib txawv ntawm 220-350 degree;
Refining thiab Impurity Tshem Tawm: Cov kuab tshuaj rho tawm lossis kho sulfuric acid;
Bleaching nrog av nplaum: tshem cov pos hniav thiab impurities, txhim kho cov roj pob tshab;
Ntxiv Antioxidants: Txhim kho oxidation stability;
Kev Ntsuas Cov Khoom tiav: Lub rooj sib tham yuav tsum muaj viscosity, flash point, ncuav point, thiab lwm yam.
