Ekwelapheni ukushisa kokubumba, ngenxa yamandla amakhulu esithando sokushisa kanye nesikhathi eside sokufakelwa amandla, ukusetshenziswa kwamandla kukhulu kuyo yonke inqubo, esikhathini eside, indlela yokulondoloza amandla ekwelapheni ukushisa kokubumba bekulokhu. inkinga enzima.

Okubizwa ngokuthi "i-insulation zero" quenching, iwukukhomba ukushisa kwe-forging, indawo yayo kanye nomgogodla ukuze kufinyelele izinga lokushisa lokushisa elicishayo, akukho ukufakwa kwe-insulation, ukucisha inqubo yokupholisa ngokushesha.Ngokwenkolelo-mbono yendabuko ye-austenitic, ukubumba kufanele kube nesikhathi eside. isikhathi sokufakelwa kwenqubo yokushisa, ukuze kuqedelwe i-nucleation nokukhula kwezinhlamvu ze-austenitic, ukuchithwa kwe-cementite esele kanye ne-homogenization. of austenitic.Ubuchwepheshe obukhona bokucisha nokushisa bezinto zokubumba bukhiqizwa ngaphansi kokuqondisa kwalo mbono.Uma kuqhathaniswa nenqubo yamanje yokucisha, "zero ukugcinwa kokushisa" ukucima kusindisa isikhathi sokugcina ukushisa okudingekayo yi-homogenization yesakhiwo se-austenitic, hhayi kuphela yonga u-20% -30% wamandla, uthuthukise ukusebenza kahle kokukhiqiza 20% -30%, kodwa futhi unganciphisa noma uqede amaphutha i-oxidation, i-decarbonization, i-deformation nokunye, okuhambisana nokuthuthukiswa kwekhwalithi yomkhiqizo.

Uma i-carbon steel nensimbi ephansi ye-alloy ishiselwa ku-Ac1 noma i-Ac2, inqubo ye-homogenization ye-austenite kanye nokuqedwa kwe-carbides ku-pearlite kuyashesha. ukufakwa kwe-thermal, okungukuthi, ukufeza ukucisha ukufakwa kwe-thermal ku-zero.Ngokwesibonelo, lapho ububanzi noma ukushuba kwe-workpiece yensimbi engu-45 ingaphezu I-100mm, ukushisa esithandweni somoya, izinga lokushisa elingaphezulu kanye nomgogodla cishe lifinyelelwe ngesikhathi esifanayo, ngakho-ke isikhathi salo esifanayo singanakwa, uma kuqhathaniswa nenqubo yokukhiqiza yendabuko (r = aD) ene-coefficient yokushisa enkulu, ingaba kuncishiswe cishe ngo-20% -25% wokucisha ukushisa kwesikhathi.

Ukuhlaziywa kwetiyori kanye nemiphumela yokuhlola kubonisa ukuthi kungenzeka ukusebenzisa "i-zero insulation" ekucimeni nasekushiseleni okujwayelekile kwensimbi yesakhiwo.Ikakhulukazi, i-45, 45 mn2 carbon structural steel noma i-single element alloy structural steel, ukusetshenziswa kwe-"zero insulation" inqubo ingaqinisekisa izakhiwo zemishini yezidingo;45, 35CrMo, GCrl5 kanye nezinye insimbi yesakhiwo sokusebenza, ukusetshenziswa Ukushisa kwe-"zero insulation" kunokushisa kwendabuko kungasindisa isikhathi sokushisa esingaba ngu-50%, ukonga amandla okuphelele kuka-10% -15%, kuthuthukise ukusebenza kahle kwe-20% -30%, ngesikhathi esifanayo "i-zero insulation" inqubo yokucima isiza. ukucwenga okusanhlamvu, ukuthuthukisa amandla.

(Kusuka ku-168 forgings net)