Boemo ba hona joale le tataiso ea nts'etsopele ea tšepe ea ho jara

Li-bearing li sebelisoa haholo mecheng ea merafo, lisebelisoa tsa mochini o nepahetseng, lisebelisoa tsa metallurgical, lisebelisoa tse boima le likoloi tse phahameng le lisebelisoa tse ling tse kholo, ho fehla matla a moea, terene ea lebelo le holimo le sefofane le liindasteri tse ling tse ntseng li hlaha. haholo-holo li-bearings tse tlaase le li-bearings tse nyenyane le tse mahareng, tse bontšang phaello e tlaase le ho haella ha maemo a holimo.

China high-speed Railway car car special matching wheelset bearings kaofela li hloka ho romelloa ho tsoa mose ho maoatle.Likarolong tse ka sehloohong tse sebelisoang sebakeng sa sefofane, seporong sa lebelo le holimo, likoloi tsa maemo a holimo le masimong a mang a indasteri, ho na le lekhalo le leholo lipakeng tsa libere tsa China le tse tsoetseng pele mabapi le bophelo ba tšebeletso, ho tšepahala, boleng ba Dn le bokhoni ba ho jara. Mohlala, bophelo ba tšebeletso ea libering tsa phetisetso ea likoloi tsa kantle ho naha ke bonyane lik'hilomithara tse 500,000, ha bophelo ba ts'ebeletso ea li-bearings tse tšoanang tsa malapeng bo ka bang lik'hilomithara tse 100,000, le ho ts'epahala le ho ts'epahala. botsitso ba futsanehile.

1. Lifofane

E le karolo ea mantlha ea enjene ea aero-enjene, moloko oa bobeli oa enjene ea aero-enjene e nang le thrust ratio ea 15-20 e ntse e ntlafatsoa kantle ho naha, e seng e loketse ho bokelloa mohaleng oa moloko oa bohlano ho pota 2020. Lilemong tse 10 tse fetileng, United States e ntlafalitse moloko oa bobeli oa tšepe bakeng sa enjene ea aero-enjene, eo baemeli ba eona ba mefuta ea tšepe e leng CSS-42L, tšepe e nang le matla a phahameng a sa khoneng ho bola e nang le khanyetso ea 500 ℃, le X30 (Cronidur30), tšepe e phahameng ea naetrojene. 350 ℃ ho hanyetsa.China e nts'etsapele moloko oa bobeli oa enjine ea moea.

2. Likoloi

Bakeng sa likoloi tsa likoloi tsa likoloi, li-bearings tsa hub tsa moloko oa pele le oa bobeli (li-ball bearings) li sebelisoa haholo Chaena, ha li-bearings tsa moloko oa boraro li 'nile tsa sebelisoa haholo Europe. , ho kenngoa ha bonolo, ha ho na phetoho, sebopeho sa compact joalo-joalo.Hona joale, mefuta e mengata e tsoang linaheng tse ling Chaena e sebelisa lisebelisoa tse joalo tse bobebe le tse kopantsoeng tsa hub.

3. Seporo sa terene

Hajoale, li-bearings tse sebelisoang litereneng tsa China tsa terene tse boima li entsoe ka li-electroslag tsa lapeng tse remelting G20CrNi2MoA carburized steel. 'Me kantle ho naha ho na le bohloeki bo phahameng ba ho qhibiliha ba tšepe (EP) le vacuum degassing inclusion homogenization technology (IQ) tšepe, bophelo bo bolelele. Theknoloji ea tšepe (TF) tšepe, boleng bo botle, le thekenoloji ea phekolo ea mocheso, mokhoa oa ho phekola ka holim'a metsi le theknoloji e tsoetseng pele ea tiiso ea ho tiisa e sebelisoang ho hlahisa tlhahiso le tlhahiso ea lihlahisoa, kahoo e ntlafatsa haholo bophelo ba tšebeletso ea ho jara le ho tšepahala. tšepe ha e tlase feela, empa le litšenyehelo ke 2000-3000 yuan / tonne ho feta ea vacuum degassing steel.Nakong e tlang, Chaena e hloka ho hlahisa tšepe ea vacuum degassing e nang le bohloeki bo phahameng haholo, boleng bo botle, homogenization le boleng bo tsitsitseng ho nka sebaka sa tšebeliso ea hona joale ea tšepe ea electroslag.

Lipatlisiso tsa nakong e tlang le tataiso ea nts'etsopele ea Bearing steel in China

E bonahala haholo-holo likarolong tse 'nè:

1. Bohloeki ba moruo

Tlas'a motheo oa ho nahana ka moruo, bohloeki ba tšepe bo ntlafala ka ho eketsehileng, litaba tsa oksijene le titanium ka tšepe li fokotsehile, 'me karoloana e boima ea oksijene le titanium ka tšepe e nang le tšepe e ka tlaase ho 6 × 10-6 le 15 × 10- 6, ka ho latellana.Likahare le boholo ba li-inclusions ka tšepe li fokotsehile, 'me mokhoa oa ho arolelana o ntlafatsoa.

2. Ntlafatso ea mokhatlo le homogenization

Ka ts'ebeliso ea moralo oa li-alloying le ts'ebetso e laoloang ea ho pholile le e laoloang, ho ts'oana ha li-inclusions le li-carbides ho ntlafatsoa le ho feta, li-carbide tse reticulated le tse tlanngoeng li fokotsehile le ho felisoa, boholo bo tloaelehileng le boholo ba likaroloana li fokotsehile, 'me boholo bo tloaelehileng ba li-carbides. e ka tlase ho 1μ m. Boholo ba lijo-thollo tsa tšepe e belehang bo ntlafatsoa ka ho eketsehileng ka ho ntlafatsa boholo ba lijo-thollo tsa sebopeho sa matrix.

3. Fokotsa bokooa ba lithane tse fokolang matla

Ka ho eketsehileng fokotsa porosity e bohareng, bohareng ba shrinkage cavity le karohano ea karolo e bohareng ka tšepe ea ho jara, ho ntlafatsa ho tšoana ha sebopeho sa matla a tlaase.

4. Matla a phahameng a ho beleha tšepe

Ho tiea ha tšepe ea ho jara ho ile ha ntlafatsoa ke motsoako o mocha, ho ntlafatsa ts'ebetso ea ho chesa le ho etsa lipatlisiso tsa phekolo ea mocheso.(China Steel Research & Development Strategy Institute)

Boitlhotlhollo: lisebelisoa tsa litšoantšo tse tsoang marang-rang, litlatsetso tsa litokelo ho sengoli sa mantlha kaofela, joalo ka tlolo ea molao, ka kopo ikopanye ho hlakola.