Nickel casting muab tshwj xeeb tsis kam rau tshav kub, corrosion, thiab hnav-ua rau nws indispensable rau hydraulic li qub, siab-siab twj tso kua mis vaj tse, thiab roj & roj downhole cuab yeej. Tab sis ua tiav lub suab, qhov ruaj khov nickel castings tsis yog tsuas yog nchuav hlau molten rau hauv pwm. Peb tau nrum ntau dua 12,000 npib tsib xee alloy qhov chaw txij li xyoo 2018 - suav nrog AMS 5387 cobalt-nickel twj tso kua mis thiab T800-raws li winch shafts-thiab txhua qhov tsis ua haujlwm tau qhia peb qee yam meej. Phau ntawv qhia no distilled dab tsi ua haujlwm, dab tsi tsis, thiab yog vim li cas.
Pib nrog Txoj Cai Alloy—thiab Tshawb Xyuas Nws
Nickel casting pib ntev ua ntej lub cub tawg teeb. Nickel alloys tsis hloov pauv. Siv IN718 qhov twg tus neeg siv khoom teev UNS N06625? Qhov ntawd tsis yog kev hloov pauv - nws yog qhov txaus ntshai ua haujlwm. Peb ib zaug tau txais cov khoom nyoos uas sau tias "Inconel 625" uas tau sim 0.8% qis hauv molybdenum. Cov txiaj ntsig tau ua tiav dhau qhov kev tshuaj ntsuam pom tab sis ua tsis tiav kev ntsuas tshuaj ntsev ntawm 72 teev - tsis yog 1,000. Muaj tseeb npib tsib xee casting pib nrog ntawv pov thawj zeb xeem ntawv qhia (MTRs), tag nrho cov ntsiab lus pov thawj ntawm OES spectroscopy, thiab traceability rau cua sov tooj. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., txhua tus npib tsib xee lossis cobalt-nickel batch undergoes cov khoom validation tiv thaiv ASTM B446 los yog AMS 5708. Tsis muaj kev zam. Yog tias koj tus neeg muag khoom hla cov kauj ruam no, koj cov txheej txheem casting twb raug cuam tshuam.
Tswj Pwm - Tsis yog Hlau xwb
Molten nickel alloys xav tau thermal stability. Xuab zeb pwm tawg. Peev plhaub coatings spall. Peb tau pom cov porosity pawg tsim tsis yog los ntawm cov pa roj nkag - tab sis los ntawm cov tshuaj tiv thaiv silica nrog nickel oxide ntawm 1,350 ° C. Qhov kho? Siv zircon-bonded peev plhaub rau nyias-walled npib tsib xee castings hauv qab 5 hli phab ntsa thickness. Rau cov xuab zeb casting, tsis txhob av nplaum-bonded greensand. Hloov mus rau tsis muaj ci phenolic urethane binders nrog ceramic ntxhua khaub ncaws-kuaj kom tiv taus> 1,400 ° C yam tsis muaj micro-cracking. Qhov tseem ceeb: preheat pwm rau 250-350 ° C * thiab tuav * rau ≥90 feeb. Hla lub sij hawm ua rau chilling, noj tsis tiav, thiab txias kaw-tshwj xeeb tshaj yog nyob rau hauv complex geometries xws li piston twj tso kua mis lub tog raj kheej vaj tse nrog cov cua txias.
Zam Peb Qhov Teeb Meem no—Txhua Lub Sijhawm
- Underestimating shrinkage them nyiaj. Nickel alloys txo qis 2.1-2.5% linearly-ze li ob npaug grey hlau. CAD qauv scaled ntawm 2.3% tseem tawm los +0.12 hli sib txawv ntawm 300 hli nta yog tias thermal expansion ntawm cov qauv cov ntaub ntawv tsis yog nyob rau hauv. Peb siv laser-scanned qauv validation ua ntej tooling tso.
- Hla kev daws annealing ua ntej machining. As-cast nickel structures muaj dendritic segregation thiab residual stress. Machining ua ntej kev kho cua sov ua rau muaj kev sib ntaus sib tua, sib tham, thiab cov cuab yeej ua ntej hnav-txawm tias muaj carbide inserts. Tag nrho peb AMS 5387 thiab T800 castings undergo tag nrho cov tshuaj anneal (1,150 ° C / 2 teev / argon quench) ua ntej CNC ua hauj lwm.
- Piv txwv tias "nickel" txhais tau tias "tsis yog magnetic." Qee cov nickel-tooj liab alloys (xws li Monel 400) khaws me ntsis sib nqus permeability tom qab casting. Yog tias koj daim ntawv thov xav tau MRI-qib uas tsis yog hlau nplaum, qhia ASTM A479 Qib N04400 nrog <0.005 max μr-thiab tshawb xyuas nrog lub ntsuas ntsuas tom qab cua sov-kho.
Vim li cas Vertical Integration Changes Outcomes
Feem ntau cov nickel casting tsis ua haujlwm tshwm sim ntawm cov ntsiab lus ntawm cov khoom siv: cov khoom siv rau cov khoom siv hluav taws xob, cov khoom siv hluav taws xob rau cov tshuab ua haujlwm, cov tshuab ua kom tiav. Peb tswj tag nrho plaub theem-hauv ib lub chaw muaj ntawv pov thawj ISO 9001. Thaum tus neeg siv khoom xav tau lub siab lub cev nrog ± 0.025 hli ID kam rau ntawm 120 hli bore, peb cam khwb cia, tov-annealed, ntxhib-tig, hnub nyoog-hardened, tas-dhuav, thiab honed-tag nrho nyob rau hauv ib lub ru tsev. Qhov tshwm sim? 98.7% first-pass tawm los. Muab piv rau qhov kev ua haujlwm tawm ntawm qhov chaw uas txhua tus neeg muag khoom siv lawv tus kheej qhov kev sib txawv, cov keeb kwm thermal, thiab cov txheej txheem npaj nto. Cov variability compounds. Peb cov qauv ntsug tshem tawm qhov cuam tshuam kev sib tshuam, ua kom muaj qhov txuas ntxiv ntawm microstructure, thiab xauv hauv GD&T ua raws li kev ua raws li cov ntaub ntawv pov thawj mus rau qhov kawg kev tshuaj xyuas.
Kev Tshawb Fawb Kawg: Nug tsib nqe lus nug no ua ntej Casting
Ua ntej koj pom zoo rau nickel casting quote-los yog kos npe tawm ntawm tus tsim-tsim tsib lub ntsiab lus no:
- Puas yog qib alloy sib phim rau qhov chaw pabcuam-tsis yog lub zog tensile xwb, tab sis creep rupture lub neej ntawm kev ua haujlwm kub?
- Puas yog cov ntaub ntawv pwm thiab preheat profiles tau sau tseg - tsis xav tias?
- Tus neeg muag khoom puas lees paub cov khoom xa tuaj * thiab * khaws tag nrho cov cua sov traceability?
- Puas yog kev daws teeb meem annealing teem sijhawm * ua ntej * kev ua haujlwm - thiab lees paub nrog cov ntawv ceeb toom hardness thiab grain loj?
- Puas yog CMM kev tshuaj xyuas ua tiav ntawm qhov txias txias, ruaj khov-tsis kub tawm ntawm kab?
Nickel casting tsis yog txheej txheem khoom. Nws yog ib daim ntawv cog lus metallurgical ntawm lub hom phiaj tsim thiab lub cev muaj tiag. Txhua qhov sib txawv-txawm hais tias nyob rau hauv chemistry, thermal profile, los yog ntsuas lub sij hawm-muab tus ntiv tes rau hauv kev ua tau zoo. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., peb kho nickel casting li lub hom phiaj tseem ceeb engineering, tsis yog hlau pouring. Vim tias thaum koj lub twj tso kua mis khiav ntawm 4,000 psi lossis koj lub valve kaw cov roj qaub, tsis muaj qhov "ze txaus."
