Mafuta ekuzora anowanzo akakodzera kune yakaderera kusvika yepakati kumhanya kunyorera apo tembiricha yekushandisa yebearing iri pazasi petembiricha yegirisi.Hapana anti-friction inobereka girisi yakakodzera kune ese maapplication.Girisi yega yega ine maitiro mashoma uye maitiro.Girisi ine base mafuta, thickener uye additives.Kutakura girisi kazhinji kune petroleum base oil yakakora neimwe sipo yesimbi.Mumakore achangopfuura, organic uye inorganic thickeners yakawedzerwa kune synthetic base oiri.Tafura 26 inopfupikisa kuumbwa kwemafuta akajairwa.Tafura 26. Ingredients of Grease Base Oil Thickener Additive Grease Mineral Oil Synthetic Hydrocarbon Ester Substance Perfluorinated Oil Silicone Lithium, Aluminium, Barium, Calcium and Compound Soap Unscented (inorganic) particles Glue (ivhu), carbon black, silica sipo-isina PTFE. (organic) polyurea compound rust inhibitor dye tackifier metal passivator antioxidant anti-wear extreme pressure additive calcium-based uye aluminium-based greases ine mvura yakanakisa yekudzivirira, Inokodzera kushandiswa kwemaindasitiri kunoda kudzivirira kupindira kwemvura.Lithium-based greases ane mashandisirwo akawanda uye akakodzera kushandiswa kwemaindasitiri uye mavhiri-ekupedzisira mabheji.
Synthetic base oiri, senge esters, organic esters uye silicones, kana ichishandiswa neanowanzo shandiswa thickeners uye additives, yakanyanya tembiricha yekushanda inowanzokwira kupfuura yakanyanya kupisa tembiricha yepetroleum-based oiri.Tembiricha yekushanda yegirisi yekugadzira inogona kubva -73°C kusvika 288°C.Aya anotevera ndiwo maitiro akajairwa emakobvu anowanzo shandiswa ne petroleum-based oiri.Tafura 27. Mamiriro ezvinhu akazara emafuta anoshandiswa nemafuta epetroleum-based Thickeners Typical Drop Point Maximum Temperature Water Resistance Uchishandisa masimbi ari muTebhu 27 ane synthetic hydrocarbon kana ester-based oils, iyo yakanyanya kupisa tembiricha inogona kuwanikwa Wedzera neanenge 10 ° C.
°C °F °C °F
Lithium 193 380 121 250 yakanaka
Lithium complex 260+ 500+ 149 300 yakanaka
Composite aluminium base 249 480 149 300 yakanakisa
Calcium sulfonate 299 570 177 350 yakanakisa
Polyurea 260 500 149 300 Yakanaka
Kushandiswa kwepolyurea semukobvu ndechimwe chezviitiko zvakakosha mumunda wekuzora kweanopfuura makore makumi matatu.Polyurea girisi inoratidza kuita kwakanakisa mumhando dzakasiyana dzekutakura maapplication, uye munguva pfupi, yave kuzivikanwa sebhora rinotakura pre-lubricant.Kudzikira tembiricha Pasi pemamiriro ekushisa akaderera, torque yekutanga yegirisi lubricated bearings yakakosha.Mamwe girizi anogona kungoshanda zvakajairika kana kutakura kuri kumhanya, asi zvinokonzeresa kuramba kwakanyanyisa kutanga kwekubereka.Mune mimwe michina midiki, inogona kusatanga kana tembiricha yakadzikira zvakanyanya.Munzvimbo yekushanda yakadaro, inodiwa kuti girizi ine hunhu hwekudziya kwakadzika kutanga.Kana tembiricha yekushanda yakafararira, mafuta ekugadzira ane mabhenefiti ari pachena.Girisi inogona kuramba ichiita kuti yekutanga uye inomhanya torque ive diki kwazvo patembiricha yakaderera ye -73°C.Mune zvimwe zviitiko, magirosi aya anoita zvirinani pane mafuta ekuzora panhau iyi.Chinhu chakakosha nezve girizi ndechekuti kutanga torque haingori basa rekuenderana kwegirisi kana kuita kwese.Kutanga torque kwakafanana nebasa rekuita kwega yega girisi, uye inotemwa neruzivo.
Tembiricha yepamusoro: Iyo yakanyanya tembiricha muganho wemafuta emazuva ano kazhinji ibasa rakazara rekudzikama kwekupisa uye oxidation kuramba kweiyo base mafuta uye kushanda kweoxidation inhibitors.Iyo tembiricha yemhando yegirisi inotarirwa nekudonha kweiyo grease thickener uye kuumbwa kweiyo base mafuta.Tafura 28 inoratidza tembiricha yegirisi pasi peakasiyana mafuta epasi mamiriro.Mushure memakore ekuedza nemabearings akaiswa girizi, nzira dzayo dzesimba dzinoratidza kuti hupenyu hwegirisi hwekuzora huchadzikiswa nepakati pakuwedzera kwe10°C kwega kwega tembiricha.Semuenzaniso, kana hupenyu hwebasa hwegirisi pakupisa kwe90 ° C maawa 2000, kana kutonhora kuchikwira kusvika ku100 ° C, hupenyu hwebasa hunoderedzwa kusvika maawa anenge 1000.Kusiyana neizvi, mushure mekudzikisa kutonhora kusvika ku80 ° C, hupenyu hwebasa hunotarisirwa kusvika maawa 4000.
Nguva yekutumira: Jun-08-2020