Ekwelapheni ukushisa kokubumba, ngenxa yamandla amakhulu esithando sokushisa kanye nesikhathi eside sokufakelwa, 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 kuphothulwe i-nucleation kanye nokukhula kwezinhlamvu ze-austenitic, ukuchithwa kwe-cementite esele kanye ne-homogenization ye-austenitic.Ubuchwepheshe obukhona bokucisha nokushisa bokubumba bukhiqizwa ngaphansi kokuqondisa kwalo mbono.Uma kuqhathaniswa ne inqubo yamanje yokucisha, "zero ukulondolozwa ukushisa" ukucisha kusindisa isikhathi ukulondolozwa ukushisa okudingekayo homogenization of isakhiwo austenitic, hhayi kuphela ungonga 20% -30% wamandla, ngcono ukukhiqiza ukusebenza kahle 20% -30%, kodwa futhi kunganciphisa noma asuse amaphutha e-oxidation, i-decarbonization, i-deformation nokunye, okulungele ukuthuthukisa ikhwalithi 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. I-insulation eshisayo, okungukuthi, ukufeza i-zero insulation insulation quenching.Ngokwesibonelo, lapho ububanzi noma ukushuba kwe-45 steel workpiece ingekho ngaphezu kwe-100mm, ukushisa esithandweni somoya, izinga lokushisa elingaphezulu kanye nomgogodla cishe kufinyelelwa. ngesikhathi esifanayo, ukuze isikhathi salo esifanayo singanakwa, uma kuqhathaniswa nenqubo yokukhiqiza yendabuko (r=aD) ene-coefficient enkulu yokushisa, ingancishiswa cishe ngo-20% -25% wokucisha ukushisa isikhathi.

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 yokusebenza yensimbi, ukusetshenziswa kokushisa kwe-"zero insulation" kunokushisa kwendabuko kungasindisa isikhathi sokushisa esingaba ngu-50%, ukonga amandla okuphelele kuka-10% - I-15%, ithuthukisa ukusebenza kahle kwe-20% -30%, ngesikhathi esifanayo "i-zero insulation" inqubo yokuqeda isiza ukucwenga okusanhlamvu, ukuthuthukisa amandla.

(Kusuka ku-168 forgings net)