Umsebenzi onzima, Umgangatho ophezulu weGARISI
Gcobasisithambisi esiqinileyo okanye esinesiqingatha semisolid esenziwe njengokusasazwa kweearhente ezijiya kwisithambiso esingamanzi.Igrisi ngokubanzi iqulathe isepha emulsified ngeminerali okanye ioyile yemifuno.
Uphawu oluqhelekileyo lweegrisi kukuba bane-viscosity ephezulu yokuqala, ethi xa isetyenziselwa ukucheba, yehla ukunika isiphumo sokuthwala i-oyile-lubricated emalunga ne-viscosity efanayo ne-oyile yesiseko esetyenziswa kwigrisi.Olu tshintsho kwi-viscosity lubizwa ngokuba yi-shear thinning.Igrisi ngamanye amaxesha isetyenziswa ukuchaza izinto zokuthambisa eziziqina nje ezithambileyo okanye ulwelo lwe-viscosity ephezulu, kodwa ezi mathiriyeli azibonisi iimpawu zokucheba ezibhityileyo zegrisi yakudala.Umzekelo, iijeli zepetroleum ezifana neVaseline azihlelwa njengegrisi.
Amafutha asetyenziswa kwiindlela ezinokuthanjiswa kuphela ngamaxesha athile kwaye apho i-oyile yokuthambisa ingenakuhlala kwindawo.Baphinde basebenze njengama-sealants ukukhusela ukungena kwamanzi kunye nezinto ezingenakulinganiswa.Iibheringi ezithanjiswe ngegrisi zineempawu ezinkulu zokukhuhlana ngenxa ye-viscosity yazo ephezulu.
Ayinyaniigrisi ibandakanya i-oyile kunye/okanye enye into yokuthambisa exutywe nesityebi, ngokuqhelekileyo aisepha, ukwenza into eqinileyo okanye i-semisolid.[1]Amafutha aqhelekileukucheba-bhityileokanye i-pseudo-plastiki fluids, oku kuthetha ukuba i-viscosity yolwelo iyancitshiswa phantsi kwe-shear.Emva kokuba kusetyenziswe amandla aneleyo okucheba igrisi, i-viscosity iyancipha kwaye isondele kwi-lubricant yesiseko, njengeoli yeeminerali.Oku kuhla ngequbuliso kumandla okucheba kuthetha ukuba igrisi ithathwa njengolwelo lweplastiki, kwaye ukuncitshiswa kwamandla okucheba ngexesha kuyenza ibe thixotropic.Iigrisi ezimbalwa ziyi-rheotropic, oku kuthetha ukuba ziba ne-viscous ngakumbi xa zisebenza.[2]Ihlala isetyenziselwa ukusebenzisa i-grease gun, efaka igrisi kwinxalenye ethanjiswayo phantsi koxinzelelo, ukunyanzelisa igrisi eqinileyo kwiindawo ezikuloo nxalenye.
Okokugqibela, kubalulekile ukuthenga iibholithi kumthengisi othembekileyo ukuqinisekisa ukuba iimveliso ozifumanayo zezona zikumgangatho ophezulu.
Ukuqukumbela, iibholiti zamavili ezilori ezikumgangatho ophezulu zibalulekile kuye nabani na osebenzisa ilori.Ezi bholiti ziyilelwe ukujongana noxinzelelo olumandla kunye noxinzelelo, zizenze zilungele ukusetyenziswa kwiindawo ezirhabaxa kunye nemithwalo enzima.Ngokukhetha ubungakanani obufanelekileyo, ukusebenzisa izixhobo ezikumgangatho ophezulu, kunye nokuthenga kumthengisi othembekileyo, unokuqinisekisa ukhuseleko kunye nobomi obude bamavili elori yakho.Ke xa kufikwa kwilori yakho, sukulalanisa kumgangatho, tyala imali kwiibholiti zamavili ezilori ezikumgangatho ophezulu namhlanje.