Koj hnov 'Stellite 21' thiab tam sim ntawd xav tias 'super alloy,' txoj cai? Hard rau tshuab, hnav mus ib txhis, mus-mus rau huab cua. Qhov ntawd yog daim ntawv qhia version. Qhov tseeb ntawm lub khw hauv pem teb, tshwj xeeb tshaj yog thaum koj tab tom cuam tshuam nrog cov khoom qub txeeg qub teg lossis kev cai ib-tawm, yog messier. Nws tsis yog hais txog hardness lossis muaj pes tsawg leeg specs; Nws yog hais txog yuav ua li cas cov khoom coj tus cwj pwm thaum koj tab tom sim ua kom nws mus rau hauv lub ntsej muag ua haujlwm lossis lub valve trim uas tsis ua rau nws tus kheej tuag hauv rau lub hlis. Ntau tus neeg muag khoom tsuas yog muag koj cov ntawv pov thawj bar Tshuag thiab ntxuav lawv txhais tes ntawm nws. Tus nqi tiag tiag, hauv kuv qhov kev xav, los ntawm cov khaub ncaws uas nkag siab txog kev taug kev los ntawm cov khoom siv raw mus rau qhov tiav, tag nrho cov casting thiab machining dabneeg. Qhov ntawd yog qhov uas outfits nrog sib sib zog nqus foundry thiab CNC cov hauv paus hniav, zoo li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), kos tawm lawv niche. Lawv tau nyob rau hauv qhov kev ua si casting thiab machining rau ntau tshaj peb xyoo lawm, uas txhais tau tias tej zaum lawv tau pom txhua txoj kev uas cobalt-chrome alloy tuaj yeem ua rau koj xav tsis thoob.
Lub Stellite 21 Spec Sheet vs. Lub Tshuab Khw
Cov nominal muaj pes tsawg leeg yog yooj yim txaus: ib tug cobalt-chromium-molybdenum alloy nrog ib tug dlej nickel ntsiab lus. Zoo corrosion kuj, zoo heev galling kuj, tswj lub zog ntawm elevated temps. Daim ntawv teev cov ntaub ntawv ua rau nws suab zoo li cov mos txwv nyiaj rau kev hnav siab, kev siv kub. Tab sis thawj zaug koj muab ib lub cuab yeej rau nws, zaj dab neeg hloov. Nws tsis zoo li machining stainless. Nws ua hauj lwm-hardens aggressively. Yog tias koj qhov nrawm, pub, thiab cov cuab yeej tsis raug hu rau hauv txoj cai, koj tsis txiav nws - koj tsuas yog polishing ib qho kim heev, nyuaj heev uas yuav mus noj koj cov carbide insert. Koj xav tau kev teeb tsa nruj, qhov zoo rake geometries, thiab ntau lub coolant tsom raws nraim ntawm kev txiav ntug. Nws yog ib txoj kev uas koj kawm los ntawm seem, frankly.
Qhov no yog qhov kev sib koom ua ke ntawm lub tuam txhab zoo li QSY tseem ceeb. Lawv tsis yog yuav cov khoom lag luam xwb; lawv tsim castings ntawm plhaub molding thiab peev casting. Pib los ntawm casting ze rau net zoo yog ib qho txiaj ntsig zoo nrog Stellite 21. Koj tshem tawm cov khoom siv tsawg dua, uas txo cov sijhawm ua haujlwm, cov cuab yeej hnav, thiab kev ntxhov siab ntawm ib feem. Tab sis casting nws coj nws tus dab-tswj shrinkage porosity, kom ntseeg tau homogeneity. Lawv 30 xyoo nyob rau hauv casting tshwj xeeb alloys tsis yog ib tug kev lag luam kab; nws yog qhov chaw cia khoom ntawm kev paub txog yuav ua li cas kom tau txais lub suab nrov ntawm cov khoom siv temperamental ua ntej CNC txawm tig mus.
Kuv nco qab txog ib qhov project rau cov tshuaj ua cov twj tso kua mis foob. Cov spec hu rau Stellite 21 ntawm ob lub ntsej muag sib tw. Tus neeg siv khoom pib tau txais cov nplhaib ua ntej los ntawm lub khw muag khoom txheem. Lawv ua tsis tau tiav ntxov vim yog micro-fissures uas zoo li tshwm sim los ntawm cov txheej txheem machining tsim cov cua sov hauv zos ntau dhau. Peb tau hloov mus rau ib tus neeg muag khoom siv kev sib xyaw ua ke-thiab-tshuab mus kom ze - hom QSY ua piv txwv. Qhov txawv yog nyob rau hauv lub microstructure. Pib los ntawm kev kho cua sov kom zoo uas lawv tau tsim hauv tsev, qhov kawg machined nto kev ncaj ncees yog superior. Qhov kawg. Nws tsis yog khawv koob; nws tau tswj tag nrho cov nqi saw.
Qhov twg nws ci (Thiab qhov twg nws tsis)
Stellite 21 tsis yog rau txhua yam. Nws qhov chaw qab zib yog qhov chaw uas koj muaj hlau-rau-hlau zawv zawg sib cuag hauv qab load, tej zaum muaj qee qhov cua sov thiab corrosives pov rau hauv. Xav tias lub tes tsho twj tso kua mis, lub nplhaib foob, lub rooj zaum valve, hnav daim hlau hauv cov ntu kub. Nws tsis kam rau cov nplaum hnav (galling) yog nws cov yam ntxwv tua neeg. Koj tuaj yeem khiav nws tawm tsam nws tus kheej lossis tawm tsam 316 stainless hauv ntau qhov tsis muaj vuam nws tus kheej ua ke.
Tab sis ib qho yuam kev yog ntuav nws ntawm txhua qhov teeb meem puas. Rau kev puas tsuaj los ntawm cov khoom tawv tawv-xws li cov xuab zeb slurry-cov hlau los ntawm cov tawv tawv los yog cov ceramic yuav yog qhov zoo dua, kev xaiv nyiaj txiag ntau dua. Stellite 21 yog tawv, tab sis nws tuaj yeem raug khawb. Nws lub zog yog nyob rau hauv tiv thaiv hom hnav uas pib nrog microwelding thiab nce mus rau tearing.
Lwm nuance yog ib puag ncig. Nws yog qhov zoo nyob rau hauv ntau oxidizing thiab txo cov kua qaub, tab sis saib xyuas rau hydrochloric thiab sulfuric nyob rau hauv tej yam concentrations thiab kub. Koj yuav tsum tau ua tib zoo saib xyuas cov kab kos ntawm corrosion. Kuv tau pom nws tau teev tseg rau daim ntawv thov dej hiav txwv uas cov chlorides ua rau pitting corrosion ntawm cov chromium-depleted aav. Kev ua tsis tiav tsis hnav; nws yog corrosion los ntawm ib tug overlooked ib puag ncig yam. Ib tus neeg koom tes ua haujlwm zoo yuav tsum soj ntsuam cov ntaub ntawv thov no, tsis yog tsuas yog ua qhov kev txiav txim.
Machining Dance: Pub, ceev, thiab cuab yeej lub neej
Cia peb xyaum. Ntawm lub tshuab dhos CNC, tig lub stellite 21 casting los yog bar, koj tab tom taug kev ib txoj hlua khi. qeeb dhau, thiab koj ua hauj lwm nyuaj rau saum npoo, ua rau kev hla dhau mus tsis tau. nrawm dhau, thiab koj thermally shock lub cuab tam, ua rau muaj kev puas tsuaj loj. Rau roughing, Kuv tau muaj hmoo zoo nrog coated carbide, nruab nrab qhov nrawm nrawm, thiab qhov sib npaug, tswj tus nqi noj. Lub hom phiaj yog kom tau raws li cov txheej txheem ua haujlwm hnyav. Kev txiav txiav yog tus yeeb ncuab; lawv nti cov cuab yeej.
Kev ua tiav yog lwm yam txuj ci. Koj xav tau ib tug ntse ntug, ib tug zoo pub kom tau ib tug zoo nto tiav, thiab koj yuav tsum kiag li tsis txhob nyob. Qhov ntawd yog qhov chaw CNC machining kev txawj ntse ntawm ib tus kws tshaj lij tuaj. Nws tsis yog hais txog muaj cov tshuab, uas QSY cov npe ntawm lawv lub peev xwm, tab sis hais txog kev muaj cov programmers thiab cov neeg ua haujlwm uas nkag siab txog cov khoom siv tus kheej.
Drilling thiab tapping? Nws ua tau, tab sis npaj rau nws. Peck drilling, cov tuav cov cuab yeej nruj, thiab cov geometry tshwj xeeb rau cobalt alloys tsis tuaj yeem sib tham. Kuv xav sib cav yog tias koj tuaj yeem tsim ib feem kom tsis txhob me me, qhov tob lossis cov xov zoo hauv Stellite 21, ua nws. Qee lub sij hawm, nws yog qhov zoo dua los tsim cov hlau rov qab los yog ntxig rau cov haujlwm fastener thiab muaj cov Stellite ua ib qho kev sib tshooj lossis cov ntaub qhwv welded. Uas coj mus rau lub ntsiab lus tom ntej ...
Kev koom tes thiab kev txiav txim siab tom qab ua tiav
Vuam Stellite 21, feem ntau rau hardfacing, yog ntau. Tab sis welding ib ntu tag nrho? Qhov ntawd yog kev ua haujlwm siab. Kev kho cua sov ua ntej thiab tom qab vuam yog qhov tseem ceeb kom tsis txhob tawg vim nws cov coefficient siab ntawm thermal expansion thiab nyiam ua cov theem nkig. Yog tias koj muaj ib feem machined los ntawm lub casting, qhov kev kho cua sov lub voj voog yog qhov tseem ceeb. Nws yuav tsum tau txo qhov kev nyuab siab casting thiab tsim cov qauv carbide xav tau hauv matrix.
Kev sib tsoo feem ntau yog cov kauj ruam kawg rau kev ua tiav nruj nruj thiab daim iav tiav ntawm lub ntsej muag foob. Siv lub log sab xis (feem ntau yog mos, qhib-qauv aluminium oxide los yog silicon carbide log), kom muaj dej txias ntau, thiab lub teeb hla. Cov khoom siv yog yooj yim rau kev sib tsoo kub hnyiab, uas tuaj yeem tsim cov kev ntxhov siab tensile thiab cov kab nrib pleb-ib qho kev pib zoo tshaj plaws rau kev ua haujlwm tsis ua haujlwm.
Qhov no holistic saib ntawm cov txheej txheem tsim-los ntawm kev xaiv alloy ntawm lub casting theem (cobalt-based alloys ua ib qho tseem ceeb tshwj xeeb rau ntau qhov chaw tsim khoom) mus txog rau qhov kawg grind-yog dab tsi cais qhov chaw uas ua tau raws li cov ntawv luam tawm los ntawm qhov chaw uas muaj sia nyob hauv thaj chaw. Nws yog qhov sib txawv ntawm ib qho kev tivthaiv thiab kev daws teeb meem.
Case hauv Point: Lub Valve Trim Saga
Ib qho piv txwv tseem ceeb los ntawm kev nco tau koom nrog kev tswj lub valve rau lub siab-siab chav tso-down kev pab cuam. Lub trim (plug thiab lub rooj zaum) yog Ameslikas 17-4PH stainless. Nws siv sijhawm li 8 lub hlis ua ntej kev yaig ntau dhau thiab ua rau lub qhov dej ntws tawm. Txoj kev txhim kho tau suav tias yog Stellite 6 (cov pa roj carbon ntau dua, nyuaj dua, hnav-tiv taus dua tab sis tawv me ntsis) thiab Stellite 21.
Peb tau mus nrog Stellite 21 rau nws qhov kev cuam tshuam zoo dua thiab ua rau lub siab tsis zoo hauv daim ntawv thov tshwj xeeb no, qhov twg qee qhov cavitation me tuaj yeem ua tau. Qhov kev sib tw yog qhov nyuaj sab hauv geometries ntawm cov khoom siv trim, uas tsis zoo tagnrho rau machining los ntawm cov khoom bar. Qhov kev daws teeb meem yog kom lawv cov peev txheej pov tseg los ntawm ib tus kws tsim khoom tshwj xeeb nrog lub peev xwm machining. Tus neeg muag khoom, zoo ib yam li nyob rau hauv Scope rau Qingdao Qiangsenyuan Technology Co., Ltd., tsim ze-net-puab castings ntawm lawv peev casting txheej txheem, ua qhov tsim nyog kev kho cua sov, thiab tom qab ntawd ua tiav qhov precision CNC machining ntawm qhov tseem ceeb sealing nto. Qhov tshwm sim yog ib feem uas muaj sia nyob ntawm thermal cycling thiab micro-kev cuam tshuam ntawm kev pabcuam. Tus nqi siab dua, tab sis tag nrho cov nqi ntawm lub neej yog qis dua.
Qhov takeaway? Kev qhia txog Stellite 21 tsuas yog thawj kauj ruam. Qhov kev siv-qhov nws ua tau li cas-yog dab tsi dictates kev vam meej. Koj xav tau ib tus khub uas tswj cov theem tseem ceeb: tsim lub suab, homogeneous casting; ua kom muaj kev kho cua sov kom raug; thiab ua kev qhuab ntuas, kev paub txog machining. Thaum cov no nyob hauv ib lub ru tsev, cov kev sib txuas lus tau nruj, thiab kev lav phib xaub yog qhov tseeb. Nws txo cov kev hloov pauv hauv cov khoom siv uas twb muaj lawm.
Yog li, lwm zaus koj tab tom saib ntawm Stellite 21 ntawm kev kos duab, xav dhau ntawm cov khoom hu. Xav txog lub foundry, lub khw muag khoom, thiab cov xov ntawm kev sib txuas lawv. Qhov ntawd yog qhov tseeb specification nyob.
