Ekwelashweni kokushisa kokwelashwa kokushisa, ngenxa yamandla amakhulu wesithando somlilo kanye nesikhathi eside sokufaka okufakwayo, ukusetshenziswa kwamandla kukhulu kuyo yonke inqubo, isikhathi eside, ukuthi ungawonga kanjani amandla ekwelashweni kokushisa kube inkinga enzima.

Ukubizwa okubizwa ngokuthi "okuqediwe kwe-zero" ukuqeda, ukukhomba ekushiseni okuvuthayo, ingaphezulu kwalo kanye nomqondo wokufinyelela ekuvuseleleni ukushisa okushisa, akukho ukufakwa, ukuqeda inyumbazane epholile. isikhathi sokufakwa kwinqubo yokufudumeza, ukuze uqedele ukuqondiswa nokukhula kwama-autenituc okusanhlamvu, ukuchithwa kwesiwombeni sensalela kanye ne-homogenization of auntenitic.Ubuchwepheshe bokushisa obudumile kanye nokushisa buyakhiwa ngaphansi kokuholwa yile mbono Inqubo yokuqothula yamanje, "I-Zero Ukulondolozwa Okulondoloziwe" Ukulondolozwa kwe-junching kusindisa isikhathi sokulondolozwa kokushisa okudingwa yi-homogenization yesakhiwo se-auntenitic, hhayi nje kuphela kungagcina amandla okukhiqiza 20% -30%, kepha futhi kunganciphisa noma ususe iziphambeko ze-oxidation, iDemonbonazation, i-deformation nokunye, okulungele ukuthuthuka kwekhwalithi yomkhiqizo.

Lapho i-carbon yensimbi nensimbi ephansi ifudunyezwa ku-AC1 noma i-AC2, inqubo ye-homogenization ye-aucenite kanye nokuchithwa kwe-carbides e-pearlite kushesha. Lapho ukubalwa kwensimbi isikhathi eside, ukubalwa kwesikhathi sokushisa akudingi ukucubungula Ukufakelwa okushisayo, okungukuthi, ukufezekisa ukufakwa okushisayo kwe-zero ukuqeda.Isibonelo, lapho ububanzi be-45 Workiece Workiece bungekho ngaphezulu kwe-100mm, ukushisa kwesiko somoya, umnyombo wendawo ucishe wafinyelelwa at Ngaso leso sikhathi, ngakho-ke isikhathi sayo esifanayo asinakwa, siqhathaniswa nenqubo yokukhiqiza yendabuko (R = AD) ngokuhlanganiswa okukhulu kokushisa, singancishiswa cishe nge-20% -25% ukuqeda isikhathi sokushisa.

Ukuhlaziywa kwethiyori kanye nemiphumela yokuhlola kukhombisa ukuthi kungenzeka ukuthi amukele "ukufakwa kwe-zero" ngokucimana kwensimbi ehlelekile. Inqubo ingaqinisekisa izakhiwo zemishini yezidingo; I-15%, yenza ngcono ukusebenza kahle kwama-20% -30%, ngasikhathi sinye "inqubo yokucisha kwe-zero isiza ukucwilisa okusanhlamvu, ukuthuthukisa amandla.

(Kusuka ku: 168 Uthethelela inetha)