I-crankshaft ingenye yezingxenye ezibaluleke kakhulu enjini yomlilo yangaphakathi, futhi impilo yayo yesevisi ngokuvamile inquma impilo yesevisi yenjini yangaphakathi yomlilo. Ngo-1920, i-American Clark Company yasebenzisa ubuchwepheshe bokungeniswa kokuqina obusungulwe kamuva nje ukuze kuqiniswe ijenali ye-crankshaft, okwathuthukisa kakhulu ukumelana nokuhuzuka kwe-crankshaft, ngaleyo ndlela kwathuthukisa impilo yokusebenza yenjini evuthayo yangaphakathi.

Emashumini eminyaka amuva nje, ukuphuka kokukhathala kwe-crankshaft kuye kwagqama kakhulu, futhi imithombo yokukhathala ngokuvamile ivela emakhoneni ayindilinga e-crankshaft yejenali yenduku yokuxhuma. Ngenxa yalesi sizathu, abakhiqizi abaningi baye bahlongoza izidingo zokuthuthukisa amandla okukhathala kwe-crankshaft. Isihluthulelo sokuthuthukisa amandla okukhathala kwe-crankshaft ukukhulisa ingcindezi eyinsalela ye-crankshaft fillet. Ukuqiniswa kwe-induction of the crankshaft fillets (kuhlanganise namajenali) kuyindlela ekhethwayo yokuthola izingcindezi ezisalelayo zokucindezelwa okungu->600MPa zamafayili. Inkampani yaseJapane yenza uchungechunge lokuhlola ukukhathala okugobayo ku-crankshaft yenjini evuthayo. Ukuhlolwa kufakazele ukuthi i-crankshaft eyindilinga eqinile inamandla okukhathala aphezulu kakhulu (996MPa), amandla okukhathala okugoqiwe e-crankshaft ingeyesibili (890MPa), kanye ne-nitrided crankshaft ingeyesithathu (720MPa). Izinkampani zaseMelika nazo zinedatha efanayo. I-Crankshaft fillet quenching ngokuvamile isebenzisa "i-half-turn inductor" quenching, eyaziwa nangokuthi indlela ye-Elotherm (Elotherm) yokucisha. Kungenxa yokuthi inzwa iboshelwe kujenali, futhi i-crankshaft iyashiswa futhi amanzi acinywe ngesikhathi sokuzungezisa (kuphinde kube necala lapho ijenali ye-crankshaft ishiselwa khona kumazinga okushisa okucisha bese iphendulwa echibini lokupholisa nokucisha). Le ndlela ayisizi nje kuphela ukungena nokuphuma kwenzwa ye-crankshaft, yenza kube lula ukusebenza kwethuluzi lomshini wokucisha, kodwa futhi ixazulula imifantu yembobo kawoyela, ububanzi obungalingani bendawo eqinile, ukushuba okungalingani kongqimba oluqinile Izinkinga ezifana nezinkulu. ukuguquguquka.

Abantu embonini ngokuvamile bakholelwa ukuthi indlela ye-Eluosen quenching iyintuthuko enkulu kubuchwepheshe bokucisha i-crankshaft. Idatha ibonisa ukuthi ukuqina kokungeniswa kwamajenali e-crankshaft kungakhuphula impilo yenjini ibe amahora angu-8000, kuyilapho ukucishwa kokufakwa kwamajenali namafayili kungakhuphula impilo yenjini ibe amahora angu-10,000. Ubuchwepheshe obubalulekile okufanele buxazululwe ukuze kuzuzwe ukucisha i-fillet ubuchwepheshe bokusabalalisa amandla. Ukucima i-Crankshaft "i-half-turn inductor" kuhilela ubuchwepheshe obuningi, njengokunikezwa kwamandla okuguqula imvamisa, ithuluzi lomshini wokucisha kanye ne-inductor, njll. Lobu buchwepheshe bubaluleke kakhulu, kodwa lobu buchwepheshe buye baxazululwa ezweni lami ekuqaleni kwawo-1980.

Ngokusobala, ukushisa okucishayo kwe-crankshaft fillet kufanele kwenziwe kuphelele. Amandla okushisa angaphakathi kwe-crank kanye nengaphandle le-crank kufanele ashintshwe, okungukuthi, amandla angaphakathi kwe-crank kufanele abe makhulu, futhi amandla angaphandle kwe-crank kufanele abe mancane. Lobu buchwepheshe bubizwa ngokuthi ubuchwepheshe bokusabalalisa amandla. Amakhona ayindilinga ama-crankshaft amakhulu namancane ayacinywa. Ubuchwepheshe bokunikeza amandla angu-100% uma kushisisa ingaphakathi le-crank, kanye namandla angu-60% (noma 70%) lapho kushisa ingaphandle le-crank, futhi njengoba i-crankshaft ijikeleza, i-engeli iyanda (noma yehla) ngenani elithile. njalo ngo-15°Amandla.