Isithando somlilo esishisayo amapharamitha nezici

Imingcele yesithando somlilo esishisayo:

1. Impahla ye-billet: 20CrMnTi 20CrMoH SAE4320H 17CrNiMoH.

2. Uhla lokucaciswa okungenalutho: ububanzi φ32-50mm; ubude 70-102mm.

3. Ukushisa kokushisa: ukushisa kuqala ku-100-200 ℃, ukushisa ku-850-950 ℃.

4. Beat: φ42, ubude 102mm, 4 imizuzwana/ucezu.

5. Ukushisa kuzinzile ngesikhathi sokusebenza okuvamile, futhi ukushintshashintsha kwezinga lokushisa phakathi kwengxenye ngayinye yezinto ezibonakalayo kungaphakathi kuka-±15 °C; umehluko wokushisa we-billet ngemva kokushisa: i-axial (ikhanda nomsila) ≤ ±50 °C; i-radial (ithebula eliwumgogodla) ≤ ±50 °C.

6. Umfutho wesistimu yokuphakelwa kwamanzi okupholisa mkhulu kuno-0.5MPa (umfutho wamanzi ojwayelekile mkhulu kuno-0.4MPa), futhi izinga lokushisa liphezulu njengo-60°C. Ukucindezela kwepayipi elihambisanayo kanye nesixhumi esibonakalayo nakho kudinga ukukhushulwa ngokulinganayo kuze kufike ezingeni lokuphepha

Izici zesithando somlilo esishisayo:

1. Ijubane lokushisa liyashesha futhi ukusebenza kahle kokukhiqiza kuphezulu. Ingabona ukukhiqizwa okuzenzakalelayo kwento yebha ngqo ngemuva kokufudumeza nokuvala. Amandla okuvala adingekayo mancane. Ibanga elidlulisayo phakathi kwezinqubo ezintathu zokushisisa, ukuvala nokubumba liyafinyezwa, ukuze insimbi ishaywe ngenkathi insimbi ishisa. Ifaniswe nomshini wokubumba onezinga eliphezulu lokuzenzakalela kanye nokusebenza kahle okuphezulu ukuze kubonakale ukuzenzekelayo komugqa wokukhiqiza wokubumba futhi unikeze ukudlala okugcwele kumthamo wokukhiqiza womshini wokubumba.

2. Ukushintshwa kwesithando somlilo sokungeniswa kulula. Isithando somlilo sokubumba esifudumele sakhiwe ikakhulukazi ukunikezwa kwamandla okuvama okuphakathi nendawo kanye nomzimba wesithando sokushisa, okuyisakhiwo esihlukanisayo. Njengoba sineminyaka eminingi yokuhlangenwe nakho okusebenzayo ekwakhiweni kwezithando zikagesi zase-Haishan, ngokwezidingo ezahlukene zabasebenzisi, siklama futhi sakha isethi ephelele yezinto zokusebenza zokufudumeza okungeniswayo neyodwa yamaza amabili aphakathi nendawo, isethi eyodwa yokuphakelwa kwamandla kanye namasethi amabili imizimba yomlilo. Ngokuya ngosayizi abahlukene bokucubungula, imizimba yesithando sokungeniswa yemininingwane ehlukene iyalungiswa. Shintsha ukushisisa noma ukushisisa kanyekanye. Umzimba ngamunye wesithando somlilo uklanyelwe ngamanzi, ugesi kanye nezihlanganisi ezishintsha ngokushesha, okwenza ukuguqulwa komzimba wesithando somlilo kube lula, okusheshayo nokulula, akugcini nje ukulondoloza amandla kagesi, kodwa futhi kufinyeza isikhathi sokushintsha umzimba wesithando somlilo.

3. Ukusetshenziswa kwamandla okuphansi, akukho ukungcola, isithando sokushisa esifudumele siyindlela yokushisa eyonga kakhulu phakathi kwezithando zokushisa zikagesi; ukusetshenziswa kwamandla ngethani ngalinye lama-forgings ashisiswe kusuka kumazinga okushisa asekamelweni kuya ku-1100 ℃ kungaphansi kuka-360 ℃. Ukushisisa kwefrikhwensi emaphakathi kungonga amandla ngo-31.5% kuya ku-54.3% ekushisiseni okuthile kawoyela we-gravity, kanye no-5% ukuya ku-40% ekongeni amandla kunokushisa kwegesi. Uma kuqhathaniswa nesithando somlilo samalahle, isithando somlilo esiphakathi asikhiqizi ukungcola lapho isithando somlilo esiphakathi nendawo sisetshenziswa ekukhiqizeni ukukhiqiza, futhi ukusebenza kahle kokushisa kwesithando somlilo kuphezulu uma kuqhathaniswa nesithando somlilo esivamile;

4. Londoloza izinto zokwakha kanye nezindleko, wandise impilo yesikhunta, ukhulise ukukhiqiza ngo-10% kuya ku-30%, futhi wandise impilo yesikhunta ngo-10% kuya ku-15%.

5. Ukunemba kokulawula izinga lokushisa kuphezulu futhi ukushisa kufana. Isithando somlilo sokubumba esifudumele samukela ukunemba kokulawula izinga lokushisa ukuze kulawulwe ngokunembile izinga lokushisa, okuqinisekisa izinga elifanelekile lemikhiqizo futhi kunciphisa izinga lokulahla ngo-1.5%. Ukushisa kwe-induction kulula ukufeza ukushisa okufanayo, futhi umehluko wokushisa phakathi komnyombo nobuso mncane.