Mi-aterialSukhetho kanyeMukwenzaPuhambo lweHot FukuhambaUyafa

Isikhunta siyithuluzi elibalulekile lenqubo yokuqaphela ubuchwepheshe bokukhiqiza obuthuthukile enqubweni yokukhiqiza, futhi eminyakeni yamuva nje, busetshenziswe kabanzi ekukhiqizeni izimboni zanamuhla.Ngokombono wokusetshenziswa, ikhwalithi yesikhunta ikakhulukazi incike ekukhethweni kwezinto ezibonakalayo zesikhunta kanye nenqubo yokwelapha ukushisa. Ngokwezimo zokusetshenziswa, isikhunta sihlukaniswe sibe isikhunta esibandayo sokwenza, isikhunta sokubumba esifudumele, isikhunta esishisayo sokubumba, isikhunta sokwenza ipulasitiki kanye nesikhunta sokuphonsa, njll. Lesi sihloko sihilela ikakhulukazi ukukhethwa kwezinto ezibonakalayo kanye nenqubo yokukhiqiza yesikhunta esishisayo sokubumba.

1. Imithetho yokukhetha impahla kanye nezidingo zobuchwepheshe zokwelashwa kokushisa okushisayo kuyafa：

Ngokuhlaziywa kwefomu lokuhluleka elijwayelekile le-hot forging die, kungabonakala ukuthi ukufa kufanele kucatshangelwe ngesikhathi sokukhetha izinto ezibonakalayo.ubulukhuni bokushisa,ukuqina-ikhono, amandla nokuqina, ukusebenza kokukhathala okushisayonjalo njalo. Ngokombono wokwelashwa okushisa, kuyadingeka ukucabangela ukumelana nokugqoka, i-surface decarburization, ubulukhuni, njll.

Ukuqina kwe-thermal,Okwaziwa nangokuthi ukuqina okubomvu, kubhekisela esikhunjeni endaweni yokushisa ephezulu ukuze kugcinwe ukuzinza kwenhlangano nokusebenza, okunamandla okumelana nokuthambisa.Leli khono ngokuyinhloko lincike ekubunjweni kwamakhemikhali wento ngokwayo kanye nenqubo yokwelapha ukushisa. Ngokuvamile, izinsimbi ezinamaphoyinti aphezulu okuncibilika njenge-V, W, Co, Nb, Mo kanye nezinto ezilula ukwakha izakhi eziningi ze-carbide ziphakeme ngobulukhuni bokushisa.

Amandla nokuqinazicatshangelwa ngokuyinhloko ngokwamandla okuthwala isikhunta, ubukhulu bokusanhlamvu bensimbi, ifomu, ukusatshalaliswa, ubukhulu, ubuningi be-carbide kanye nokuqukethwe kwe-austenite esele kuzothinta amandla nokuqina kwesikhunta.Lezi zici zincike kakhulu ekwakhekeni kwamakhemikhali ensimbi, isimo senhlangano kanye nokusetshenziswa okunengqondo kwenqubo yokwelapha ukushisa.

Ukuqina-ikhonoibhekisela kububanzi bobulukhuni obungafinyelelwa ngemva kwenqubo yokucisha impahla, ehlobene ngokuqondile nokuqukethwe kwekhabhoni kwezinto. Vele, kunezici eziningi ezithinta impilo ye-hot forging dies, futhi izinto zokwakha kufanele zikhethwe ngokufanele ngokuya ngemibandela yokusetshenziswa kwe-hot forging dies.

2. Hot forging die processing technology：

Okokuqala, blanking, forging andukwelashwa kwe-spheroidizing annealing:Izinto zokubumba ezihlinzekwe yifekthri yensimbi ngokuyinhloko ziyimigoqo noma amabhilidi e-forging, futhi ama-carbide enhlanganweni yangaphakathi asatshalaliswa esimweni senethiwekhi eduze kwemingcele yokusanhlamvu. Uma izinto zokubumba ezikuleli fomu zingacutshungulwa ngokuqhubekayo, ukuqhekeka kulula ukuqalisa nokwandiswa eduze kwemingcele yokusanhlamvu ngesikhathi sokwakhiwa, ukunciphisa umthamo wokuthwala wesikhunta futhi ekugcineni kunciphisa impilo yesevisi yesikhunta.Ngokwelashwa kwe-forging kanye ne-spheroidizing annealing, i-carbide encane, iyunifomu kanye nehlakazekile ingakhiwa, izimo zenhlangano zangaphakathi zesikhunta ziyathuthukiswa, futhi umkhuba wokuqhekeka obangelwa ukugxila kwengcindezi yendawo enkambisweni yokwelapha ukushisa kuyagwenywa, futhi impilo yesevisi ye- isikhunta sithuthukisiwe.

Okwesibili, fukwelashwa kokuqala: Hlela ukusika ngaphambi kokwelashwa kokushisa, inhloso eyinhloko ukugwema ukwakheka kokucindezeleka okuqinile ebusweni besikhunta ngesikhathi somshini kanye nokunciphisa ukumelana nokukhathala kwesikhunta.I-electrical pulse processing inqubo yokuncibilika kwezinto. Ngemuva kokucutshungulwa kwe-pulse kagesi, ungqimba oluncibilikayo kanye nesendlalelo esithintekayo ukushisa kwakheka kalula ebusweni besikhunta, esinomthelela othile ebukhuni nokugqoka ukumelana kwendawo yokubumba. Ukuze kuncishiswe ukucindezeleka okucindezelayo okwakhiwa ebusweni besikhunta ngemva kokwelashwa kokushisa, ukucutshungulwa kwe-pulse kagesi ngokuvamile akusakwenziwa ngemva kokuqedwa kokwelashwa kokushisa, kodwa ngokunciphisa imvume yokucubungula.Noma sebenzisa indlela yokugaya nokupholisha ngemva kokucubungula ukuze unciphise umthelela kungqimba lokucubungula okungaphezulu ukuze ugweme ukusika, ikakhulukazi ukucubungula ishayela kagesi ekulimaleni kwesikhunta futhi kuthinte impilo yesikhunta.

Okwesithathu, ukwelashwa kokushisisa:ubuchwepheshe bokucubungula okunengqondo kufanele busetshenziselwe ukunciphisa ukuguqulwa kwesikhunta enkambisweni yokwelashwa kokushisa, njengokusetshenziswa kwenqubo yokushisa enezigaba eziningi, engavimbela isikhunta ekushiseni ukuqhekeka. Ngesikhathi esifanayo, indlela yokwelapha ukushisa kufanele igweme ukuhwamuka kwezakhi ze-alloying, futhi ngaphakathi kwebanga elivumelekile lezinto ezibonakalayo zokuba lukhuni, ubuchwepheshe bokucisha igesi kanye nokwelashwa kokushisa kwe-vacuum kufanele kusetshenziswe ngangokunokwenzeka ukunciphisa ukuguquguquka kokwelashwa kokushisa nokugwema ukwanda kwesibonelelo sokucubungula ngemva kwesixhumanisi sokwelashwa kokushisa, okuholela ekushiseni okuphezulu kwendawo futhi kuthinte impilo yesevisi yesikhunta.

Next, sukuqhuma okushisayo, ukugaya, ukwelashwa kokupholisha:ngemuva kokucisha kanye nenqubo yokushisa, ngaphambi kokwelashwa kokushisa okungaphezulu, ukucwiliswa kwesibhamu kufanele kwenziwe ukuze kwakhiwe ungqimba lokucindezeleka okucindezelayo ebusweni bokufa, ukuze kuguqulwe isimo sokucindezeleka sokufa ngemva kokucisha nokwelashwa;ukwelashwa kokupholisha isikhunta nakho kungaqeda ukukhubazeka kwendawo yokucubungula isikhunta futhi kuthuthukise impilo yesevisi.

Bese,I-nitrogen ejulile ye-ion: in ukuze uthuthukise ukumelana nokukhathala nokumelana nokugqoka kwesikhunta, kungcono ukusebenzisa i-N2 futhi ugweme i-NH3, ngoba i-H + ku-NH3 inomphumela we-hydrogen embrittlement esikhumbeni.Kumele kuqashelwe ukuthi izinga lokushisa elijulile le-nitrogen kufanele libe ngaphansi kwezinga lokushisa emva kokucisha, ukuze kugwenywe ukunciphisa ubulukhuni be-mold matrix, okuholela ekuhlulekeni kwesikhunta..

Okokugcina, cukwelashwa kwe-ryogenic: tUmgomo wakhe wokwelashwa kwe-cryogenic ukunciphisa i-austenite esele futhi wenze ukucindezeleka okucindezelayo ebusweni besikhunta ukuze kuthuthukiswe ubulukhuni nokumelana nokugqoka okuphezulu kwesikhunta.Kodwa udinga ukuphepha. Ukucaciswa okujwayelekile kokwelashwa kwe-cryogenic: isikhunta (isimo sokushisa kwegumbi) - i-nitrogen ewuketshezi (-196) "Amahora angu-C / 2 - ukubuya kwemvelo ekamelweni lokushisa i-160-170C / amahora angu-4 ukupholisa okungenalutho.

Sekukonke, ukukhiqiza i-hot forging die akuwona umsebenzi olula, kunemininingwane eminingi okufanele uyinake kanye nenqwaba yemithetho okufanele iqashelwe futhi ilandelwe, ngethemba ukuthi imininingwane engenhla ingakusiza ngezinga elithile. Siyakwamukela ukushiya imibuzo nemicabango yakho ngezansi. I-ZZBETTER njengenkampani echwepheshile futhi enekhono, siphinde sakhiqiza ama-tungsten carbide hot forging dies neminye imikhiqizo ye-WC, ngakho-ke sicela usithinte uma unombuzo futhi.