AISI 8620 peev casting Hoobkas tsis yog ib kab lus xwb - nws yog qhov kev ua tau zoo. Thaum koj lub tsheb ciav hlau yuav tsum muaj sia nyob 150,000 cycles hauv qab 350 MPa hydraulic load, los yog koj lub tsheb kis tau tus mob vaj tse zam rov qab thermal poob siab los ntawm -40 ° C mus rau + 180 ° C, cov khoom xaiv thiab cov txheej txheem tswj tsis tau xaiv. Lawv dhau los ua tus tsis sib tham. AISI 8620 steel muab qhov zoo tshaj plaws tshuav nyiaj li cas: sib sib zog nqus hardenability ntawm npib tsib xee-chromium-molybdenum alloying, nplua-grained microstructure tom qab carburizing, thiab tshwj xeeb core hardness-* yog * cov txheej txheem casting khaws nws metallurgical kev ncaj ncees. Qhov ntawd yog qhov uas cov neeg muag khoom feem ntau ua tsis tau - tsis yog kev kho cua sov, tab sis ua ntej: hauv pwm tsim, lub plhaub ruaj khov, thiab kev tswj kom ruaj khov.
Vim li cas AISI 8620 Demands Peev Casting - Tsis Xuab zeb lossis Tuag
Xuab zeb casting qhia txog cov nplej coarsening ze ntawm phab ntsa pwm; tuag casting tsis tuaj yeem lis AISI 8620 lub siab melting point (1490 ° C) los yog nws rhiab heev rau cov tawg ceev ceev. Kev nqis peev casting daws ob qho tib si. Nws lub plhaub ceramic tso cai qeeb, kev taw qhia ua kom muaj zog-tseem ceeb rau kev ua tiav cov ntaub ntawv qhov tob thaum lub sij hawm tom qab carburizing. Peb tau ntsuas txog li 22% kev txhim kho nyob rau hauv rooj plaub-core hloov chaw hardness gradient sib xws piv rau cov xuab zeb-cam khwb cia sib npaug ntawm cov iav zoo tib yam. Ntau qhov tseeb: lub ntiaj teb cov neeg nqa khoom peb tau muab rau Tier-1 EV tsav tsheb cov neeg siv tau pom 0.08 hli qhov dav dav tom qab 500 teev ntawm kev ntsuas nrawm nrawm - piv rau 0.21 hli hauv cov neeg sib tw cov xuab zeb-cam khwb cia. Qhov txawv tsis yog machining. Nws yog qhov zoo li-cam khwb cia microstructure.
Plaub Tsis Sib Tham hauv AISI 8620 Peev Casting Factory
Tsis yog txhua qhov chaw tsim khoom kho AISI 8620 nrog sib npaug sib npaug. Nov yog qhov cais lub luag haujlwm tseem ceeb ntawm kev muaj peev xwm los ntawm cov khoom tsim tawm:
- Raw khoom traceability mus rau tus xov tooj cua sov- tsis muaj batch blending. Txhua AISI 8620 ingot tau ntawv pov thawj rau ASTM A304, nrog tag nrho cov ntaub ntawv qhia txog spectrographic rau Ni (0.4–0.7%), Cr (0.4–0.6%), thiab Mo (0.15–0.25%) cov ntsiab lus. Deviations sab nraud ± 0.03% ua rau tsis siv neeg cais tawm.
- Plhaub kom qhuav raws tu qauv calibrated rau dew point, tsis yog lub sijhawm. Cov av noo siab tshaj 45% RH thaum lub sij hawm dewaxing ua rau micro-porosity nyob rau hauv 5-12 µm ntau yam - undetectable los ntawm X-ray tab sis kev puas tsuaj nyob rau hauv qaug zog loading. Peb cov kilns teev RH tiag tiag thiab kub txhua txhua 90 vib nas this.
- Pre-carburizing kev ntxhov siab nyem ntawm 650 ° C rau 4 teev-tsis yeem. Unrelieved casting stresses distort iav thaum lub rooj plaub hardening. Peb txheeb xyuas qhov kev ntxhov siab ntawm qhov seem ntawm qhov drilling strain gauging ntawm thawj kab lus.
- CMM-raws li-cam khwb cia soj ntsuam ua ntej txhua yam machining. Peb tshawb xyuas 12 qhov tseem ceeb ntawm GD&T callouts-nrog rau qhov profile ntawm qhov chaw ntawm iav hniav flanks thiab txoj hauj lwm kam rau kev sib raug zoo ntawm lub ntsej muag-ntawm lub xeev ntsuab. Yog tias nws ua tsis tiav ntawm no, tsis muaj nyiaj ntau ntawm CNC kho kom txuag tau ib feem.
Qhov twg Standard Factories txiav kaum-thiab peb tsis ua li cas
Qee qhov AISI 8620 peev casting factories hla pre-alloy nqus degassing, piv txwv li tus qauv EAF yaj kev xyaum txaus. Tab sis cov ntsiab lus oxygen siab dua 20 ppm tsim cov oxide stringers uas pib pitting hauv cov hniav iav. Peb siv VIM + ESR refining rau tag nrho cov aerospace thiab automotive xaj-txo O₂ rau <8 ppm thiab sulfur rau <0.002%. Lwm txoj kev luv luv: siv cov txheej txheem plhaub txheej siv zircon-raws li slurries optimized rau high-alloy steels. Cov txheej txheem dav dav nthuav dav ntawm 1400 ° C, qhia txog cov refractory inclusions. Peb cov txheej txheem slurry suav nrog 12% fused silica binder thiab particle-loj faib txheeb xyuas los ntawm laser diffraction-txhua pawg.
Cov neeg siv khoom feem ntau nug: "Koj puas tuaj yeem tuav ± 0.025 hli ntawm 120 hli suab lub voj voog txoj kab uas hla?" Yog - tab sis tsuas yog yog tias lub iav tsis muaj qhov sib txawv ntawm cov phab ntsa tuab ntawm ± 0.3 hli. Tias yog vim li cas peb cov cuab yeej cuab yeej ua haujlwm simulation simulation (siv MAGMASOFT®) * ua ntej * qauv pom zoo. Peb daim ntawv qhia thermal gradients thoob plaws tag nrho cov ntoo casting, tom qab ntawd kho qhov rooj kom tshem tawm cov chaw kub. Lub quarter dhau los, qhov no tiv thaiv 37 cov khoom seem ntawm ib qho kev txiav txim rau kev sib dhos hybrid qag.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD.: Precision Forged nyob rau hauv txheej txheem Discipline
Raws li nyob rau hauv Qingdao, QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ua haujlwm ib qho ISO 9001-tso ntawv pov thawj qhov chaw uas AISI 8620 peev casting tsis raug rho tawm - nws tau koom ua ke. CNC machining tshwm sim ntawm tib pem teb, nrog sib koom CMM cov ntaub ntawv loops. Thaum lub iav dawb paug tuaj txog los ntawm casting, nws qhov tseeb geometry pub ncaj qha rau hauv CNC program's toolpath them nyiaj-tsis muaj phau ntawv offset nkag. Cov sij hawm kho cua sov yog txuas nrog cov lej ntau hauv peb MES, yog li carburizing tsis pib-kho raws li qhov ua ntej hardness kuaj tau los ntawm qhov tseeb qhov cua sov.
Peb tsis muag cov khoom. Peb xa cov kev npaj ua haujlwm. Qhov ntawd txhais tau hais tias siv cov iav mesh qauv nrog optical profileometry ua ntej xa khoom. Nws txhais tau tias muab cov ntaub ntawv pov thawj tag nrho, lub plhaub tsim cov ntaub ntawv, thiab tom qab cua sov-kho micrographs raws li kev thov. Nws txhais tau tias tuav cov khoom lag luam ntawm AISI 8620 master alloys los ntawm peb tus neeg muab ntawv pov thawj - yog li kev cuam tshuam cov saw hlau tsis cuam tshuam koj cov qauv txheej txheem.
Ib qho AISI 8620 peev casting Hoobkas khwv tau kev ntseeg tsis yog los ntawm daim ntawv qhia, tab sis los ntawm kev rov ua dua: tib lub hardness profile hla 500 units, tib lub neej qaug zog thoob plaws peb xyoos ntau lawm, tib seem stability tom qab 10,000 thermal cycles. Qhov ntawd yog tus qauv QINGDAO QIANGSENYUAN TECHNOLOGY ntsib - tsis yog qee zaus, tab sis ua haujlwm. Vim hais tias nyob rau hauv precision iav thiab automotive daim ntaub ntawv, "kaw txaus" tsis muaj nyob. Tsuas yog qhov tseeb xwb.
