Amapayipi ensimbi aqondileisidingo sokusebenzisa umkhiqizo ukuze uhambisane nenqubo yokukhiqiza, okungukuthi, i-lubricant yengilazi, eyakhiqizwa nge-graphite ngaphambi kokusebenzisa i-lubricant yengilazi, ngoba ngaleso sikhathi wawungekho umkhiqizo onjalo emakethe.Ngakho-ke, i-graphite ingasetshenziswa kuphela njenge-lubricant, kodwa ngaphansi kokusetshenziswa isikhathi eside, wonke umuntu uzothola izinkinga ezithile, okungukuthi, ukusebenza kahle kokudlulisa ukushisa kwe-graphite kuphezulu kakhulu, futhi umphumela wokushisa oshisayo nawo ubi kakhulu.Ngale ndlela, izinga lokushisa lesikhunta lizoshesha kakhulu phakathi nomsebenzi, futhi kulula ukubangela ukugqoka kwepayipi yensimbi yomthungo oqondile, ukuze umkhiqizo ungasetshenziswa isikhathi eside.Ngakho-ke, abakhiqizi bebefuna umkhiqizo ongangena esikhundleni se-graphite, okungukuthi, izithambisi zengilazi, kodwa kungani kufanele zisetshenziswe?Lokho kungenxa yokuthi kunezinzuzo eziningi zama-trolley furnaces.Okokuqala, ukusebenza kahle kokudlulisa ukushisa kuphansi, ukuze kudlale indima yokugcina ukushisa futhi kungandisa isikhathi sokusetshenziswa kwemishini.