Lubricating roj yog qhov tseem ceeb rau kev saib xyuas ntawm lub hnab tsis-woven ua tshuab. Yuav ua li cas xaiv lub lubricant ntawm lub hnab tsis-woven ua tshuab? Lubricants tsuas yog yuav tsum tau lubrication sab hauv, yog li lawv xaiv yog yooj yim heev. Txawm li cas los xij, feem ntau, nws yog qhov zoo tshaj los kho lawv cov lubrication sab hauv thiab sab nraud rau qee yam.
Lub hauv thiab sab nrauv lubrication muaj nuj nqi ntawm lub lubricant yog txiav txim los ntawm nws cov tshuaj muaj pes tsawg leeg, polarity thiab solubility nyob rau hauv polymer yaj. Piv txwv li, stearic acid monoglyceride tuaj yeem yaj hauv polyvinyl chloride yaj thiab muaj ib feem hauv lubrication muaj nuj nqi. Nws sab hauv lubrication muaj nuj nqi los ntawm lub luag hauj lwm ntawm ob tug polar hydroxyl pawg nyob rau hauv lub molecule; Glyceryl tristearate muaj tsuas yog sab nraud lubricating muaj nuj nqi vim nws tsis muaj hydroxyl pawg hauv nws cov molecule. Ntawm chav kawm, lub lubrication muaj nuj nqi kuj cuam tshuam los ntawm impurities thiab lwm yam additives muaj nyob rau hauv lub lubricant.
Muaj ntau ntau hom lubricants rau cov yas ntawm cov khoom siv tsis-woven hnab ua tshuab, los ntawm tej yam ntuj tso xws li lignite wax, paraffin, ntxhia roj, tsiaj thiab zaub roj rau ntau yam tsawg molecular hnyav polymers xws li tsis tshua muaj molecular fluororesin, organosilicon roj, tsawg. density polyethylene, thiab lwm yam. ib co aliphatic tebchaw feem ntau siv, xws li stearic acid, stearic acid soaps, thiab fatty acid esters. Thiab amide compounds.
Xyoo 1981, Tebchaws Asmeskas tau siv ntau dua 10000 tons ntawm cov roj nplua nyeem hauv kev ua cov yas, suav nrog 45 feem pua ntawm cov amides, 35 feem pua ntawm cov stearic acid thiab nws cov derivatives, thiab siv quav ciab. tshuaj sib xyaw. Qee cov roj nplua nyeem, xws li oleic acid amide, stearic acid amide, fatty acid hlau ntsev nyuaj (fatty acid cadmium), thiab lwm yam, kuj yog cov tshuaj tiv thaiv zoo. Ntev npaum li 0.5 feem pua cov roj lubricating tau ntxiv rau lub hnab uas tsis yog-woven ua tshuab, cov yeeb yaj kiab tuaj yeem tau txais kev ua haujlwm zoo. Tau kawg, fillers xws li silica thiab av nplaum kuj yog siv ntev tshaj plaws los tiv thaiv cov kab mob, nrog rau tus nqi ntawm 0.1-1.0 feem pua . Lawv feem ntau hu ua tus neeg sawv cev qhib.
