Ukuthambisa ngegrisi ngokuqhelekileyo kufanelekile kwiindlela ezisezantsi ukuya kweziphakathi zokusetyenziswa apho ubushushu bokusebenza kwebheringi bungaphantsi kobushushu obumiselweyo begrisi. Akukho grisi yokuthambisa echasene nokuqhawuka efanelekileyo kuzo zonke iindlela zokusetyenziswa. Igrisi nganye ineempawu ezilinganiselweyo kunye nokusebenza okulinganiselweyo. Igrisi iqulathe ioyile yesiseko, i-thickener kunye nezinye izinto ezongeziweyo. Igrisi yokuthambisa idla ngokuba neoyile yesiseko sepetroleum eqiniswe ngesepha ethile yesinyithi. Kwiminyaka yakutshanje, izinto zothambisa zendalo kunye nezingaphiliyo zongezwe kwiioyile zesiseko zokwenziwa. Itheyibhile 26 ishwankathela ukwakheka kweegrisi eziqhelekileyo. Itheyibhile 26. Izithako zeGrease Base Oil Thickener Additive Grease Mineral Oil Synthetic Hydrocarbon Ester Substance Perfluorinated Oil Silicone Lithium, Aluminium, Barium, Calcium kunye neCompound Soap Unscented (inorganic) particles Glue (clay), carbon black, silica gel, PTFE soap-free (organic) polyurea compound rust inhibitor dye tackifier metal passivator antioxidant anti-wear extreme pressure additive calcium-based and aluminium-based greases zinokumelana kakuhle kwamanzi, Zifanelekile kwiindlela zokusetyenziswa kwemizi-mveliso ezifuna ukuthintela ukungena komswakama. Iigrisi ezisekelwe kwiLithium zisetyenziswa ngeendlela ezininzi kwaye zifanelekile kwiimveliso zoshishino kunye neebheringi zevili.
Iioyile zesiseko ezenziweyo, ezifana nee-esters, ii-esters zendalo kunye nee-silicones, xa zisetyenziswa kunye nezithambisi ezisetyenziswa rhoqo kunye nezongezo, ubushushu obuphezulu bokusebenza buhlala buphezulu kunobushushu obuphezulu bokusebenza kweeoyile ezisekelwe kwi-petroleum. Uluhlu lobushushu bokusebenza lwegrisi yokwenziwa lunokuba ukusuka kwi--73°C ukuya kwi-288°C. Ezi zilandelayo ziimpawu eziqhelekileyo zezithambisi ezisetyenziswa rhoqo kwiioyile ezisekelwe kwi-petroleum. Itheyibhile 27. Iimpawu eziqhelekileyo zezithambisi ezisetyenziswa kunye neeoyile ezisekelwe kwi-petroleum Izithambisi zeDopping eziQhelekileyo Ubushushu obuphezulu Ukumelana namanzi Ukusebenzisa izithambisi kwiTheyibhile 27 kunye neeoyile ezisekelwe kwi-hydrocarbon okanye kwi-ester, ubushushu obuphezulu bokusebenza bunokufezekiswa. Ukunyuka malunga ne-10°C.
°C °F °C °F
I-Lithium 193 380 121 250 elungileyo
I-Lithium complex 260+ 500+ 149 300 elungileyo
Isiseko se-aluminiyam esidityanisiweyo 249 480 149 300 sigqwesile
I-calcium sulfonate 299 570 177 350 igqwesile
I-Polyurea 260 500 149 300 Ilungile
Ukusetyenziswa kwe-polyurea njengesithambisi sesinye sezona zinto zibalulekileyo kuphuhliso lwe-lubricating field iminyaka engaphezu kwama-30. I-polyurea grease ibonisa ukusebenza kakuhle kwiintlobo ngeentlobo zezicelo ze-bearing, kwaye ngexesha elifutshane, iye yaqatshelwa njenge-ball bearing pre-lubricant. Ubushushu obuphantsi Phantsi kweemeko zobushushu obuphantsi, i-torque yokuqala yee-grease lubricated bearings ibaluleke kakhulu. Amanye ama-grease anokusebenza ngokuqhelekileyo kuphela xa i-bearing isebenza, kodwa iya kubangela ukumelana okukhulu ekuqaleni kwe-bearing. Kwezinye iimashini ezincinci, isenokungaqali xa ubushushu buphantsi kakhulu. Kwimeko enjalo yokusebenza, kufuneka ukuba i-grease ibe neempawu zobushushu obuphantsi bokuqala. Ukuba uluhlu lobushushu bokusebenza lubanzi, i-grease yokwenziwa ineenzuzo ezicacileyo. I-grease isenokwenza i-torque yokuqala nokusebenza ibe ncinci kakhulu kubushushu obuphantsi be--73°C. Kwezinye iimeko, la ma-grease asebenza ngcono kune-lubricants kule nkalo. Ingongoma ebalulekileyo malunga ne-grease kukuba i-torque yokuqala ayisiyomfuneko yokuba yi-grease consistency okanye ukusebenza ngokubanzi. I-torque yokuqala ifana nomsebenzi wokusebenza komntu ngamnye we-grease ethile, kwaye imiselwa ngamava.
Ubushushu obuphezulu: Umda wobushushu obuphezulu weegrisi zanamhlanje udla ngokuba ngumsebenzi opheleleyo wokuzinza kobushushu kunye nokumelana ne-oxidation yeoyile yesiseko kunye nokusebenza kakuhle kwee-oxidation inhibitors. Uluhlu lobushushu lwegrisi lumiselwa yindawo yokuwa kwe-grease thickener kunye nokwakheka kwe-oyile yesiseko. Itheyibhile 28 ibonisa uluhlu lobushushu lwegrisi phantsi kweemeko ezahlukeneyo ze-oyile yesiseko. Emva kweminyaka yovavanyo ngee-bearings ezifakwe igrisi, iindlela zayo ezibonisa ukuba ubomi begrisi yokuthambisa buya kuncitshiswa ngesiqingatha kulo lonke ukunyuka kobushushu nge-10°C. Umzekelo, ukuba ubomi benkonzo yegrisi kubushushu obuyi-90°C buyiyure ezingama-2000, xa ubushushu bunyuka busiya kwi-100°C, ubomi benkonzo buyancitshiswa bufikelele kwiiyure ezili-1000. Ngokwahlukileyo koko, emva kokunciphisa ubushushu busiya kwi-80°C, ubomi benkonzo kulindeleke ukuba bufikelele kwiiyure ezingama-4000.
Ixesha lokuthumela: Juni-08-2020