Txoj Kev Txhim Kho Ntawm Crankshaft Manufacturing Technology nyob rau yav tom ntej
Mar 02, 2023| Crankshaft yog ib qho tseem ceeb ntawm cov cav tsheb, thiab nws cov kev ua tau zoo cuam tshuam rau lub neej ntawm lub tsheb. Thaum lub sijhawm ua haujlwm, lub crankshaft raug rau cov khoom hnyav thiab hloov pauv hloov lub sijhawm thiab lub zog. Cov hom kev tsis ua haujlwm feem ntau yog bending qaug zog tawg thiab sau ntawv hnav. Yog li ntawd, cov khoom siv crankshaft yuav tsum muaj siab rigidity, qaug zog, thiab zoo hnav tsis kam.
1. Foundry Technology
(1) Smelting
Rau cov melting ntawm qib siab cam khwb cia hlau, loj muaj peev xwm nruab nrab zaus furnaces los yog variable zaus intermediate zaus furnaces yuav siv tau rau melting, thiab ncaj qha nyeem spectrometers yuav siv tau los xyuas cov muaj pes tsawg leeg ntawm molten hlau. Kev kho mob ntawm nodular cam khwb cia hlau txais yuav subcontracting, tsim tshiab hom nodularizing neeg ua hauj lwm, thiab txais yuav advanced inoculation txoj kev xws li khiav inoculation, nyob rau hauv pwm inoculation, thiab composite inoculation. Cov txheej txheem ntawm cov txheej txheem melting yog tswj los ntawm microcomputer thiab tso tawm rau ntawm qhov screen.
(2) Styling
Poob ua npuas ncauj casting yuav tsim thiab txhawb nqa. Hauv cov xuab zeb casting, lub thawv tsawg dua kev txhaj tshuaj molding thiab extrusion molding yuav tau txais kev saib xyuas thiab txuas ntxiv mus ntxiv thiab siv rau hauv cov nroj tsuag tshiab lossis rov tsim dua tshiab. Tus thawj high-voltage molding kab yuav txuas ntxiv siv, thiab qee qhov tseem ceeb yuav raug txhim kho kom ua tiav cov tub ntxhais tsis siv neeg sib dhos thiab tshem tawm cov tub ntxhais.
2. Forging tshuab
Txoj kev loj hlob ntawm forging crankshaft ntau lawm yog tsis siv neeg kab raws li kub tuag forging presses thiab electro-hydraulic hammers. Cov kab ntau lawm no feem ntau yuav tau txais kev txiav txim siab thiab qhov khoob, yob forging (cross wedge dov) billet ua, thiab nruab nrab zaus induction cua sov.
3. Machining tshuab
Rau kev ua haujlwm ntxhib ntawm crankshaft, cov cuab yeej siv siab tshaj plaws xws li CNC lathes, CNC sab hauv milling tshuab, thiab CNC broaching tshuab yuav siv dav rau CNC tig, sab hauv milling, thiab tig broaching ntawm lub ntsiab phau ntawv xov xwm thiab txuas qws phau ntawv xov xwm, thiaj li yuav txo tau zoo. deformation ntawm crankshaft ua. CNC tswj crankshaft sib tsoo tshuab yuav siv dav rau crankshaft xov kom tiav machining nws cov ntawv sau.
Lub tshuab sib tsoo no yuav nruab nrog cov cuab yeej tsis siv neeg dynamic ntsuas kev sib tsoo lub log, tsis siv neeg taug qab cov cuab yeej rau nruab nrab ncej, ntsuas tsis siv neeg, tsis siv neeg them nyiaj, tsis siv neeg hnav khaub ncaws sib tsoo lub log, tsis tu ncua linear ceev, thiab lwm yam yuav tsum tau ua kom ruaj khov sib tsoo zoo. Qhov xwm txheej tam sim no ntawm cov cuab yeej siv siab precision cia siab rau kev xa khoom tsis tau xav tias yuav hloov pauv hauv lub sijhawm luv.
4. Kev kho cua sov thev naus laus zis thiab thev naus laus zis thev naus laus zis
(1) Nruab nrab zaus induction hardening ntawm crankshaft
Lub crankshaft nruab nrab zaus induction hardening yuav siv lub microcomputer tswj kaw-voj nruab nrab zaus induction cua sov ntaus ntawv, uas yog tus cwj pwm los ntawm kev ua haujlwm siab, ruaj khov zoo, thiab kev ua haujlwm tswj tau.
(2) Crankshaft mos nitriding
Txhawm rau txhim kho qhov zoo ntawm cov crankshaft hauv kev tsim khoom loj, microcomputer tswj cov nitrogen raws li cov pa roj soft nitriding ntau lawm kab yuav raug saws yav tom ntej. Lub tshuab cua nitrogen raws li cov pa roj nitriding ntau lawm muaj lub tshuab ntxuav pem hauv ntej (tu thiab ziab), lub qhov cub ua ntej, lub qhov cub mos nitriding, lub tank roj txias, lub tshuab ntxuav tom qab (tu thiab ziab), tswj qhov system, thiab ib tug gas npaj thiab faib system.
(3) Nto Strengthening Technology rau Crankshaft
Nodular cam khwb cia hlau crankshaft fillet dov lub zog yuav siv dav hauv crankshaft ua. Tsis tas li ntawd, cov txheej txheem sib xyaw ua kom muaj zog xws li fillet dov txhawb zog thiab cov ntawv xov xwm saum npoo tawv kuj tseem siv dav hauv crankshaft ua. Forged steel crankshaft ntxiv dag zog rau txoj kev yuav nce siv phau ntawv thiab fillet hardening.
Cov laj thawj tseem ceeb ntawm crankshaft tawg:
(1) Lub cav roj deteriorates tom qab siv mus ntev; Kev hnyav dhau thiab kev thauj khoom hnyav tau ua rau lub sijhawm ua haujlwm dhau ntawm lub cav thiab qhov tshwm sim ntawm cov pobzeb hlawv. Lub crankshaft raug kev txom nyem hnyav vim qhov kub ntawm cov vuas cav.
(2) Tom qab lub cav tau kho lawm, lub tsheb tsis dhau lub sijhawm ua haujlwm, uas txhais tau hais tias nws yog overloaded thiab overloaded. Lub cav tau overloaded rau lub sij hawm ntev, ua rau lub crankshaft load tshaj qhov txwv.
(3) Overlay welding tau siv los kho lub crankshaft, uas ua rau lub cev tsis muaj zog ntawm lub crankshaft thiab tsis tau kuaj xyuas qhov sib npaug. Qhov tsis sib xws tau dhau tus qauv, ua rau muaj kev vibration ntau dua ntawm lub cav thiab ua rau lub crankshaft puas.
(4) Vim yog txoj kev tsis zoo thiab kev thauj khoom hnyav thiab thauj ntau dhau ntawm lub tsheb, lub cav feem ntau ua haujlwm nyob rau hauv qhov tseem ceeb ntawm kev sib hloov ceev ntawm torsional vibration, thiab lub damper tsis ua haujlwm, uas tuaj yeem ua rau torsional vibration qaug zog puas tsuaj thiab tawg ntawm lub crankshaft.