Eziningana ezivame kakhulu izindlela zokunciphisa okwamanje

Izindlela zokucisha ezivamile 1. Indlela yokucisha ukupholisa ebambezelekile

Indlela yokucisha iwukuba uphole kuqala emoyeni, emanzini ashisayo kanye nokugeza okusawoti ezingeni lokushisa elingaphezudlwana kwe-Ar3 noma i-Ar1, bese kwenziwa ukucisha okuphakathi nendawo okukodwa. Le ndlela yokucisha ngokuvamile isetshenziselwa ukucisha izingxenye ezinobunjwa obuyinkimbinkimbi nezingxenye ezinokwehluka okukhulu kokuqina futhi okudinga ukuguquguquka okuncane.

Izindlela ezijwayelekile zokucisha 2. Izindlela zokuzicisha zokuzicisha

Le ndlela yokucisha ngokuyinhloko isebenzisa izingxenye eziqinisayo zokungeniswa ukuze kudluliswe ukushisa okungapholiswanga ngokuphelele kunkambo ukuya phezulu ukuze kuthukuthelise indawo engaphezulu. Amathuluzi asetshenziselwa ukumelana nomthelela, njengeshizolo, isibhakela, isando, ukulawula isikhathi sokucwiliswa kwengxenye ezoqiniswa phakathi nendawo, khipha ukupholisa komoya lapho umbala wengxenye engacwilisiwe uqala ukuba mnyama, bese usebenzisa ukushisa okusalayo. yengxenye engacwilisiwe ukuze kusetshenziswe kabusha ingxenye ecwilisiwe. umlilo.

Izindlela zokucisha ezivamile 3. Indlela yokucisha i-bainite isothermal

Le ndlela yokucisha iwukucisha ucezu lokusebenza endaweni yokugeza enezinga lokushisa eliphansi le-bainite lensimbi ezingeni lokushisa eliphakathi nendawo, ukuze uguquko oluphansi lwe-bainite lwenzeke. Ngokuvamile, igcinwa kubhavu i-30 ~ 60min futhi ivame ukusetshenziselwa i-alloy steel, i-carbon steel ephezulu izingxenye ezinosayizi omncane kanye ne-Ductile iron castings.

Izindlela zokucisha ezivamile 4. Indlela yokucisha okuphakathi nendawo eyodwa

Indlela yokucima ngokuyinhloko ipholisa endaweni yokucima umlilo yokucima umlilo, futhi ukukhethwa kwenziwa ngokuvumelana ne-coefficient yokudlulisa ukushisa, ukuqina, ubukhulu kanye nokuma kwezingxenye.

Izindlela zokucisha ezivamile 5. Indlela yokucisha emaphakathi kabili

Indlela yokucisha iwukuba kuqala ubeke izingxenye endaweni enekhono eliqinile lokupholisa, uzenze zicime, ugweme “ithiphu lekhala” lejika lensimbi C futhi uphole phezulu kwephoyinti likaMs, bese udlulisela ngokushesha endaweni ebuthakathaka ukuze qhubeka nokupholisa. Imidiya yokupholisa evame ukusetshenziswa amanzi-amafutha, amanzi-nitrate, umoya-manzi, umoya kawoyela, njll., inhloso yawo ukugwema ukuguquguquka nokuqhekeka. Isetshenziselwa ubujamo obuyinkimbinkimbi noma ama-workpieces amakhulu enziwe nge-carbon steel ephezulu ne-alloy steel.

Izindlela zokucisha ezivamile 6. Izindlela zokucisha inhlanganisela

Le ndlela yokucisha iwukuba kuqala ucime i-workpiece ibe ngaphansi kukaNks ukuze uthole i-martensite enengxenye yevolumu engu-10% kuya ku-30%, bese kuba yi-isothermal esifundeni esingaphansi kwe-bainite. Izakhiwo ze-martensite kanye ne-bainite zivame ukusetshenziswa ku-alloy tool workpieces yensimbi ukuze kutholwe ama-workpieces amakhulu e-cross-section, angagwema uhlobo lokuqala lwe-teer brittleness, ukunciphisa inani le-austenite egciniwe kanye nokuthambekela kokuguqulwa nokuqhekeka.

Izindlela zokucisha ezivamile 7. Izindlela zokucisha i-isothermal zangaphambi kokupholisa

Le ndlela yokucisha ngokuyinhloko iwukupholisa izingxenye endaweni yokushisa ephansi (enkulu kunoNksz) okugeza kuqala, bese idlulisela endaweni yokugeza yokushisa ephakeme, ukuze i-austenite ibhekane nokuguqulwa kwe-isothermal, okuvame ukusetshenziselwa izingxenye zensimbi ezinobunzima obuphansi.

Izindlela zokucisha ezivamile 8. Izindlela zokucisha ezisezingeni le-Martensitic ngezansi kwephoyinti likaNkz

Le ndlela yokucisha iwukwenza izinga lokushisa lokugeza libe ngaphansi kukaNks kodwa libe phezulu kune-Mf yensimbi esetshenziselwa ucezu lokusebenzela, ucezu lokusebenzela luzopholiswa ngokushesha kubhavu, futhi umphumela ofanayo nokucisha okuhleliwe kusengatholakala lapho ubukhulu bukhona. ezinkulu. Uma i-workpiece yensimbi eqinile ihlelwa bese ipholiswa ngamanzi noma ngamafutha, ukuzinza okushisayo kwe-austenite kungancishiswa nakakhulu, okuzuzisa ukuzinza kwe-dimensional.

Izindlela zokucisha ezijwayelekile 9. Izindlela zokucisha ezisezingeni le-Martensitic

Le ndlela yokucisha iwukuba i-austenitize insimbi esetshenziselwa izingxenye, bese ucwilisa izingxenye kubhavu ngezinga lokushisa elingaphezudlwana kwephoyinti lika-Ms lensimbi ukuze kulondolozwe ukushisa. Lapho izinga lokushisa ngaphakathi nangaphandle kwezingxenye lihambisana nezinga lokushisa lokugeza, khipha ukupholisa komoya, futhi emoyeni opholile, i-Supercooling Tensite ishintsha kancane kancane ibe i-martensite. Amabhavu e-nitrate avame ukusetshenziswa ezindaweni zokugeza ezishisayo, futhi izinga lokushisa lawo ngu-Ms+(10~20)ºC. Ama-workpieces amancane anomumo oyinkimbinkimbi kanye nezidingo eziqinile zokuguquguquka, insimbi enesivinini esikhulu kanye namathuluzi ensimbi ane-alloy ephezulu kanye nokufa kuvame ukucinywa ngale ndlela.