Thaum ib tug hais Alloy 6, thawj yam uas feem ntau los rau hauv siab yog lwm yam cobalt-based hardfacing alloy. Qhov ntawd yog me ntsis ntawm qhov chaw-theem coj, thiab ib qho kuv tau siv los qhia. Cov ntawv specs tout nws zoo heev puas ntsoog tsis kam thiab zoo cuam tshuam lub zog, uas yog qhov tseeb, tab sis zaj dab neeg tiag tiag yog nyob rau hauv daim ntawv thov tsis sib haum thiab cov hloov maj mam pauv-offs koj tsuas kawm nyob rau hauv lub khw hauv pem teb los yog nyob rau hauv lub tshav pob. Nws tsis yog rab phom khawv koob; nws yog ib qho cuab yeej tshwj xeeb, thiab nkag siab nws tus cwj pwm yog qhov tseem ceeb.
Tshaj Tawm ntawm Daim Ntawv Teev Npe: Kev Sib Sau thiab Kev Ua Lag Luam Hauv Kev Lag Luam
Cov nominal muaj pes tsawg leeg - nyob ib ncig ntawm 1% C, 30% Cr, 4.5% W, tshuav Co - yog classic. Lub siab chromium muab nws cov khoom corrosion thiab oxidation tsis kam, uas yog vim li cas nws thiaj li tau teev tseg rau tej yam xws li lub rooj zaum hauv qhov chaw nruj. Cov tungsten carbides yog lub hauv paus ntawm qhov hnav tsis kam. Tab sis ntawm no yog thawj nuance: carbide loj thiab kev faib tawm. Hauv qee cov khoom siv, yog tias qhov kev sib koom ua ke tsis zoo tswj tau, koj tuaj yeem tau txais cov qauv sib cais me ntsis. Qhov no tsis yog ib txwm tshwm sim ntawm daim ntawv pov thawj, tab sis koj yuav hnov nws thaum lub sij hawm machining - ib qho chaw uas yog ib qho nyuaj me ntsis, ua rau cov cuab yeej sib tham.
Peb tau muab cov castings los ntawm ntau lub foundries ntau xyoo, thiab cov uas pheej ua tau zoo tshaj plaws nyob rau hauv lub tom ntej machining yog los ntawm cov neeg koom tes uas hais txog cov txheej txheem tswj cov yaj thiab ncuav. Nws yog ib qho kev ceeb toom tias tus lej alloy tsuas yog pib daim ntawv qhia; tus kws ua zaub mov kev txawj ntse tseem ceeb heev. Qhov no yog qhov uas tus khub ntev ntev nyiam Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) qhia nws tus nqi. Nrog lawv 30+ xyoo nyob rau hauv lub plhaub thiab peev casting, lawv tau txais qhov sib xws tsis yog hais txog kev ntaus tus lej chemistry, nws yog hais txog tag nrho cov keeb kwm thermal ntawm ib feem.
Kev lag luam tawm, ib txwm, yog nruab nrab ntawm hardness / abrasion tsis kam thiab crack susceptibility. Alloy 6 feem ntau suav hais tias muaj kev cuam tshuam zoo rau nws chav kawm hardness, tab sis qhov zoo yog txheeb ze. Yog tias koj tsim ib feem nrog cov kaum ntse ntse sab hauv thiab qhia txog qhov tso nyiaj tuab ntawm Alloy 6, koj tab tom thov teeb meem. Peb kawm qhov no thaum ntxov nrog lub twj tso kua mis hnav lub phaj. Cov qauv tsim muaj 90-degree kaum hauv substrate. Lub Alloy 6 overlay, raws li nws txias thiab shrunk, tawg txoj cai los ntawm qhov kev ntxhov siab concentrator. Cov tshuaj tsis yog ib qho sib txawv alloy, tab sis ib qho kev hloov tsim rau lub kaum sab xis. Cov ntaub ntawv qhia peb tias nws xav tau dab tsi.
Application Realities: Casting vs. Overlay
Feem ntau siv rau Alloy 6 yog nyob rau hauv cov ntsiab lus ntawm weld overlay los yog thermal spray. Tab sis nws siv raws li ib tug cam khwb cia tivthaiv yog ib qho tseem ceeb, yog hais tias tsawg flashy, domain. Nov yog thaj chaw tseem ceeb rau lub chaw tsim khoom zoo li QSY. Casting Alloy 6 rau hauv cov duab nyuaj-xav tias turbine blade seals lossis cov cuab yeej cuab yeej cuab tam - nthuav tawm cov kev sib tw sib txawv. Fluidity yog qis dua qee cov nickel-raws li alloys, yog li lub rooj vag thiab kev nce siab yuav tsum tau tsim kom tsis txhob muaj mistruns, tshwj xeeb tshaj yog nyob rau hauv nyias seem.
Peb muaj ib qhov project rau ib tug directional tswj valve tivthaiv uas yuav tsum tau intricate intricate raws. Tus qauv pib, tsim los rau cov qauv hlau, ua tsis tau zoo nrog Alloy 6. Cov hlau tsuas yog tsis sau cov ntsiab lus zoo tshaj plaws ua ntej khov. Kev txhim kho, tsim los ntawm kev koom tes nrog lawv pab neeg ua haujlwm engineering, koom nrog kev hloov pauv cov peev txheej txheej txheem kev lag luam-tshwj xeeb ua ntej kub kub ntawm pwm thiab hloov kho me ntsis ncuav kub. Nws tsis yog ib qho kev hloov pauv, tab sis nws yog qhov kev hloov pauv uas tau yug los ntawm kev paub. Koj tuaj yeem nrhiav lawv txoj hauv kev rau qhov tshwj xeeb alloys cov ntsiab lus ntawm lawv qhov chaw ntawm https://www.tsingtaocnc.com, uas qhia txog lawv txoj haujlwm nrog cobalt thiab nickel-based alloys.
Tom qab-casting, qhov xav tau kev kho cua sov yog lwm qhov kev txiav txim siab. Rau siab tshaj plaws abrasion kuj, koj feem ntau tso nws li-cam khwb cia. Tab sis yog tias koj xav tau los txo cov kev ntxhov siab rau qhov kev ruaj ntseg thaum lub sij hawm kawg machining, lub voj voog kev ntxhov siab yog qhov tsim nyog. Qhov ua kom yuam kev yog ua kom qhov kub thiab lub sijhawm nyob rau hauv lub qhov rais uas tsis ua rau cov qoob loo ntau dhau los yog carbide coalescence, uas yuav ua rau cov khoom muag muag. Nws yog ib qho kev sib npaug.
Machining Sib Tsoo: Literally
Qhov no yog qhov kev tshawb xav tau raws li lub log sib tsoo. Machining cam khwb cia Alloy 6 tsis yog rau cov neeg mob plawv lossis cov tsis zoo. Nws ua hauj lwm-hardens aggressively. Yog tias koj lub cuab yeej tsis ntse, yog tias koj qhov nrawm thiab nrawm nrawm, koj yuav glaze rau saum npoo thiab tig dhau mus ua npau suav phem. Peb ua raws li kev nruj CNC teeb tsa, ceramic lossis CBN inserts rau tig, thiab pob zeb diamond log rau kev sib tsoo. Txawm li ntawd los, cov cuab yeej lub neej yog ib feem ntawm qhov koj yuav tau txais nrog hlau.
Lub tswv yim tswv yim: thaum drilling, pecking yog qhov tseem ceeb rau kev tawg cov nti thiab tshem nws. Cia ib nti rub rau hauv lub raj nplaim yuav ua kom muaj cua sov txaus los ua haujlwm-nrhiav hauv qab ntawm lub qhov, muaj peev xwm stalling lub laum los yog tawg. Peb rhuav tshem ntau yam khoom kim heev ua ntej qhov no los ua ib feem ntawm cov txheej txheem. Nws suab yooj yim, tab sis nyob rau hauv lub siab ntau lawm, cov hauv paus yog thawj yam uas yuav tau rushed.
Qhov kawg tseem ceeb heev. Ib qho chaw hauv av ntawm lub ntsej muag Alloy 6 lub ntsej muag yuav ua tau txawv heev los ntawm kev tig ib qho ntawm cov yam ntxwv ntawm hnav-hauv thiab to. Cov lus qhia tshwj xeeb yuav tsum tau hu tsis yog tsuas yog cov hlau, tab sis qhov kawg ntawm qhov kawg thiab yuav ua li cas kom tiav. Qhov kev nthuav dav no cais cov duab kos uas ua haujlwm los ntawm ib qho uas ua rau mob taub hau hauv kev tsim khoom thiab kev ua haujlwm tsis zoo.
Failure Analysis: Thaum Alloy 6 Tsis yog Cov Lus Teb
Kuv nco qab ib rooj plaub uas muaj cov slurry twj impeller. Cov neeg muas zaub insisted rau Alloy 6 raws li kev vam meej yav dhau los hauv daim ntawv thov sib txawv. Qhov tsis ua haujlwm tau nrawm thiab muaj kev puas tsuaj - tsis hnav, tab sis tawg tawg. Qhov teeb meem? Lub slurry nyob rau hauv daim ntawv thov tshiab no muaj loj, ntse-edged silica hais thiab tseem ceeb cavitation. Alloy 6 tiv thaiv qhov kev puas tsuaj zoo, tab sis kev sib xyaw ua ke ntawm cov kev cuam tshuam siab tshaj plaws los ntawm cov khoom thiab cavitation npuas tsim cov microcracks uas propagated sai heev los ntawm cov nkig matrix.
Qhov no yog qhov yuam kev xaiv cov khoom. Ib qho nyuaj, ntau cov khoom siv zoo li cov hlau dawb chrome yuav tau deformed ntau dua li tawg, los yog cov nickel-based alloy nrog cov yam ntxwv zoo dua tuaj yeem tshawb pom. Nws qhia peb tias kev puas tsuaj tsis yog ib qho cuab yeej. Koj yuav tsum tau txiav tawm cov txheej txheem hnav: nws puas yog zawv zawg dawb huv, tsis muaj kev ntxhov siab khawb, kev sib tsoo siab, lossis kev sib xyaw ua ke? Alloy 6 excels hauv thawj ob, tab sis nws qhov kev ua tau zoo poob rau hauv cov xwm txheej cuam tshuam loj heev.
Qhov no yog qhov uas muaj tus khub foundry uas nkag siab txog cov ntsiab lus tseem ceeb. Kev sib tham zoo nrog tus kws ua haujlwm daim ntawv thov ntawm lub tuam txhab xws li QSY tsis yog hais txog koj tuaj yeem pov qhov no? Nws yog hais txog dab tsi yog qhov no yuav tsum tau ua siab ntev? Lawv cov kev paub dhau los ntawm cov alloys sib txawv tso cai rau lawv nug cov lus nug uas yog thiab qee zaum qhia txog lwm txoj hauv kev uas yuav ua tau zoo dua, txawm tias nws txhais tau tias cov khoom sib txawv ntawm lawv cov ntaub ntawv.
Sourcing thiab Supply Chain Reality
Cov ntsiab lus cobalt ua rau Alloy 6 raws li tus nqi volatility thiab mov saw geopolitics. Nws yog qhov tseeb uas tau yuam ntau tus engineers rov ntsuam xyuas cov lus qhia tshwj xeeb. Kev ua haujlwm puas tuaj yeem ua tiav nrog cov hlau hloov kho lossis sib txawv cobalt-dawb hardfacing alloy? Qee zaum muaj, qee zaum tsis muaj. Rau cov ntawv thov tseem ceeb uas nws qhov tshwj xeeb ua ke ntawm kub hardness thiab corrosion kuj yog irreplaceable, koj tsuas yog yuav tsum tswj qhov kev pheej hmoo.
Qhov no ua rau kev sib raug zoo mus sij hawm ntev nrog cov neeg muag khoom ntseeg siab tseem ceeb. Koj xav tau ib lub chaw tsim khoom uas muaj cov khoom lag luam ruaj khov thiab cov txheej txheem qhov tob kom muaj peev xwm kho cov ntsiab lus alloying thib ob hauv qhov spec kom txo tau tus nqi yam tsis muaj kev cuam tshuam kev ua tau zoo-txawm tias qhov no yog kev seev cev zoo nkauj. Lub 30-xyoo kev ua haujlwm keeb kwm ntawm ib lub tuam txhab nyiam QSY qhia tias lawv tau taug kev mus rau cov kev lag luam no ua ntej thiab muaj cov saw hlau muaj zog los ua qhov chaw ruaj khov, uas yog qhov tseem ceeb raws li lawv cov peev txheej.
Thaum kawg, ib txwm, ib txwm tau txais cov ntawv xeem thawj zaug. Txawm tias muaj tus neeg muag khoom ntseeg siab, khiav cov khoom los ntawm lawv cov paces-hardness checks, micrography los xyuas cov qauv carbide, thiab yog tias ua tau, simulated service test. Nws yog qhov kawg, cov kauj ruam tseem ceeb los xyuas kom meej qhov Alloy 6 koj tau txais tus cwj pwm zoo li Alloy 6 koj tsim nrog. Nws txuas qhov sib txawv ntawm qhov kev cog lus ntawm qhov tshwj xeeb thiab qhov tseeb ntawm cov khoom hauv koj txhais tes.
