Koj puas tuaj yeem weld stellite?

Stellite, raws li kev cobalt - Raws li alloy nrog kev ua tau zoo, yog siv dav hauv ntau thaj chaw muaj tsheb. Coob tus neeg yuav xav paub seb puas muaj peev xwm muab welded. Cov lus teb yog muaj, tab sis stellite vuam tsis yog txoj haujlwm yooj yim. Nws muaj cov qib siab rau kev vuam cov txheej txheem, cov txheej txheem, thiab cov haujlwm thiab cov haujlwm vim nws cov khoom siv tshwj xeeb.
Ua tau ntawm stellite vuam
Stellite tuaj yeem welded hauv essence. Nws cov weldability yog feem ntau txiav txim los ntawm nws cov tshuaj lom neeg muaj pes tsawg leeg thiab microstructure. Stellite muaj cov ntsiab xws li cobalt, chromium, tungsten, thiab carbon. Ntawm lawv, chromium tuaj yeem tsim cov yeeb yaj kiab tuab rau saum npoo ntawm alloy, uas muaj qee yam kev tiv thaiv thaum lub sij hawm vuam. Txawm li cas los xij, lub xub ntiag ntawm tungsten thiab carbon kuj coj qee txoj kev nyuaj rau vuam. Tungsten muaj lub siab melting point, uas nce qhov nyuaj ntawm melting lub alloy thaum lub sij hawm vuam. Cov pa roj carbon ua ke nrog lwm cov ntsiab lus los ua cov carbides. Yog tias cov txheej txheem vuam tsis raug tswj kom zoo, cov carbides no yuav precipate nyob rau hauv weld thiab tshav kub} kev ua yeeb yam ntawm welded sib koom tes.
Hauv kev siv tswv yim, stellite vuam feem ntau siv rau kev kho vuam ntawm lwm cov hauv paus vuam ntawm lwm yam khoom siv hauv paus los txhim kho lawv cov kev ua tau zoo. Piv txwv li, hauv cov roj thiab roj kev lag luam, thaum lub rooj zaum hauv stellite tau nqa tawm los kho nws qhov loj me, uas tuaj yeem txuag cov nqi piv nrog hloov cov khoom siv tshiab.
Cov Kev Vuam Vuam Rau Stellite
Roj Tungsten Arc Vuam (GTaw)
Roj Tungsten arc vuam, tseem hu ua tus vuam vuam, yog ib txoj kev siv rau stellite vuam. Hauv hom no, tsis yog - Consumable Tungsten Electrode yog kev tiv thaiv los ntawm cov pa roj (feem ntau arter (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arert gas (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arert gas (feem ntau arter (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arert gas (feem ntau arter (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arert gas (feem ntau arter (feem ntau arter (feem ntau arter (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer (feem ntau arer). Qhov zoo ntawm GTAW yog tias nws tuaj yeem tswj cov lus qhia tshav kub, uas yog qhov tseem ceeb heev rau stellite vuam. Stellite yog rhiab rau cov lus tawm ua kom sov. Cov kev tawm hws ntau dhau yuav ua rau muaj kev loj hlob ntau dhau ntawm cov nplej hauv tshav kub- muaj nag lossis nag lossis daus, txo cov tawv ntawm kev sib koom tes. GTAW tuaj yeem kho lub vuam qhov chaw vuam tam sim no, cov hluav taws xob, thiab vuam ceev kom tswj cov lus qhia tshav sov kom muaj ntau yam. Nws yog tsim nyog rau vuam nyias -}} walled stellite Cheebtsam nrog rau Weld Beads.
Ntshav arc vuam (paw)
Ntshav Arc Vuam yog lwm txoj kev ua tau zoo rau cov vuam. Lub ntshav Ntshav ARC muaj lub zog siab ntom ntom ntom ntom, uas muaj peev xwm yaj stellite sai sai. Zoo li gtaw, nws tseem siv roj inert rau kev tiv thaiv. Lub zog loj ntom ntawm Plasma Arc ua rau cov txheej txheem vuam ua kom muaj zog ntau dua, thiab nws tuaj yeem tau txais kev nkag mus tob weld nyob rau hauv tib lub vuam. Hom no yog tsim nyog rau vuam tuab cov neeg ua haujlwm stellite lossis rau cov ntawv thov uas yuav tsum tau vuam ntau dua. Txawm li cas los xij, ntshav arc vuam muaj qhov yuav tsum tau ua thiab cov neeg ua haujlwm yuav tsum tau hloov kho kom ua kom tsis txhob muaj qhov tsis xws luag zoo li cov pores thiab tawg.
Oxy - acetylene vuam
Oxy - acetylene vuam yog ib zaug siv txoj kev siv rau stellite vuam, tshwj xeeb tshaj yog rau kev vuam vuam, tshwj xeeb tshaj yog rau kev sib tw vuam. Nws siv cov nplaim taws tau tsim los ntawm kev sib txuas ntawm oxygen thiab acetylene kom yaj cov hlau stellite vuam hlau thiab cov khoom siv hauv paus. Hom qauv no muaj cov khoom siv tsawg dua thiab yog yooj yim rau kev ua haujlwm, tab sis nws muaj qee qhov pom tseeb. Cov tswv yim cua sov ntawm oxy- acetylene weletylene tsis yooj yim, thiab cua sov} Qhov yooj yim los ua rau nag lossis daus ntau dhau ntawm cov carbides hauv stellite. Ib qho ntxiv, cov nplaim taws yuav ua rau oxidation ntawm weld hlau yog tias tiv thaiv tsis zoo, txo cov kev ua tau zoo ntawm welded sib koom tes. Tam sim no oxy - Acetylene vuam yog maj mam hloov los ntawm ntau cov lus teb vuam ua haujlwm vim nws yooj yim.
Cov kev sib tw hauv stellite vuam thiab cov kev daws teeb meem
Tawg pleb
Kev tawg yog ib qho teeb meem feem ntau hauv kev sib tw vuam. Muaj ob hom kab nrib pleb: kub tawg thiab cov kab nrib pleb. Cov kab nrib kub feem ntau tshwm sim nyob rau hauv lub pas dej weld thaum lub signitionification cov txheej txheem, uas muaj feem rau kev sib xyaw ntawm stellite thiab cov txheej txheem vuam. Stellite muaj kev tsim lub zog kub heev, thiab qis}} yaj utectics tej zaum yuav tsim nyob rau hauv lub pas dej weld, uas yog qhov yooj yim ua rau muaj kev ntxhov siab hauv vuam. Txias nrib pleb feem ntau tshwm sim nyob rau hauv cov cua sov - kub ntawm qhov cua txias, uas yog qhov muaj cua sov}}} cuam tshuam cheeb tsam vim muaj nag lossis daus.
Txhawm rau tiv thaiv kev tawg, ntsuas hauv qab no tuaj yeem coj tau. Ua ntej, preheating lub workpiece ua ntej vuam. Preheating tuaj yeem txo qhov sib txawv ntawm weld thiab cov khoom siv ua kom muaj zog, thiab txo cov dej txias kom txo tau cov nag. Lub preheating kub feem ntau 200 - 400 degree, nyob ntawm seb hom stellite thiab cov tuab ntawm lub workpiece. Thib ob, tswj cov lus tawm sov. Raws li tau hais ua ntej, ntau dhau kev pheej hmoo ntawm kev pheej hmoo ntawm kev pheej hmoo ntawm cov vuam vuam tsim nyog kom paub tseeb tias cov kev tawm suab sib kub. Thib peb, Post - Weld Kev Kho Tshav Kub. Tom qab vuam, lub workpiece tuaj yeem ua kom sov rau ib qho ntsuas kub (feem ntau {{9} degree) thiab khaws cia rau ib lub sijhawm, tom qab ntawd maj mam txias. Qhov no tuaj yeem txo cov kev ntxhov siab rau kev ntxhov siab thiab txhim kho cov tawv ntawm welded sib koom tes.
Porosity
Porosity nyob rau hauv Weld yog lwm qhov teeb meem uas yuav tshwm sim hauv kev sib tw vuam. Porosity yog mas los ntawm lub xub ntiag ntawm cov roj hauv lub pas dej weld uas tsis tuaj yeem khiav tawm hauv lub sijhawm thaum sandorification. Cov peev txheej ntawm cov roj muaj xws li cov dej noo, roj stains, thiab oxides nyob rau saum npoo ntawm welding hlau thiab vuam hlau, nrog rau cov roj txheem quab yuam hauv cov roj tiv thaiv.
Txhawm rau zam cov porosity, nws yog qhov tsim nyog kom nruj me ntsis huv si ntawm qhov chaw ua haujlwm thiab vuam hlau ua ntej vuam. Qhov saum npoo yuav tsum polished los tshem tawm oxides, roj stains, thiab xeb, thiab tom qab ntawd thiab tom qab ntawd thiab lwm yam tshuaj ntxuav tu. Cov roj tiv thaiv yuav tsum yog cov nqi siab thiab kev tiv thaiv txaus thiab kev tiv thaiv ntau yuav tsum ua kom ntseeg tau tias lub pas dej weld yog cais ntawm huab cua. Tsis tas li ntawd, lub vuam ceev yuav tsum tsis txhob nrawm, yog li cov roj hauv lub pas dej weld muaj sijhawm txaus kom dim.
Kev ceev faj rau stellite vuam
Xaiv cov vuam cov ntaub ntawv
Thaum vuam stellite, nws feem ntau pom zoo kom siv vuam hlau nrog tib yam lossis sib xyaw ua ke raws li cov khoom siv hauv paus. Qhov no tuaj yeem ua kom ntseeg tau tias cov muaj pes tsawg leeg thiab kev ua tau zoo ntawm Weld yog ze rau cov ntawm cov khoom siv. Piv txwv li, thaum vuam stellite 6, stellite 6 vuam hlau yuav tsum tau siv. Yog tias lwm hom vuam hlau siv, nws yuav ua rau qhov sib txawv ntawm cov kev sib txawv ntawm weld, siab} kub kuj, thiab lwm yam khoom ntawm kev sib koom ua ke.
Kev tswj ntawm vuam txheej txheem tsis
Ntxiv nrog rau cov lus qhia tshav kub tau hais ua ntej lawm, lwm txoj kev vuam cov txheej txheem vuam kuj yuav tsum tau tswj hwm nruj. Lub vuam tam sim no yuav tsum tau sib phim nrog txoj kab uas hla ntawm vuam hlau thiab tuab ntawm lub workpiece. Loj heev tam sim no yuav ua rau muaj melting ntau dhau, thiab me dhau ib qho tam sim no yuav ua rau muaj kev tsis zoo fusion. Lub vuam ceev yuav tsum ruaj khov los xyuas kom ntseeg tau tias kev tsim cov kev tsim ntawm Weld. Qhov kev ncua deb ntawm cov electrode thiab lub workpiece (arc ntev) yuav tsum khaws cia kom muaj kev ruaj ntseg, uas yog pab tau ruaj khov rau kev tswj hwm qhov ruaj khov ntawm arc thiab kev sib txawv ntawm cov lus qhia tshav kub.
Post -} vuam kuaj
Tom qab vuam, welded sib koom tes yuav tsum raug kuaj xyuas. Kev kuaj pom tuaj yeem kuaj pom thawj zaug pom tias muaj qhov tsis xws luag xws li cov kab nrib pleb, pores, thiab tsis ua tiav fusion ntawm ntug Weld. Rau cov txheej txheem tseem ceeb, tsis - Kev sim ua hluav taws xob ntxiv xws li x} Kev kuaj pay}} Kev sim tshuaj xyuas rau kev kho sab hauv. Ib qho ntxiv, cov cuab yeej kuaj cov cuab yeej tuaj yeem nqa tawm ntawm welded sib koom tes yog tias tsim nyog los xyuas seb nws lub zog nyuaj, thiab lwm yam ntawm cov kev cai.
Hauv kev xaus, txawm hais tias stellite vuam yog qhov nyuaj, nws tuaj yeem ua tiav txoj kev vuam tsim nyog, nruj me ntsis kev ntsuas vuam, thiab kev siv cov kev ntsuas vuam. Stellite vuam yog lub luag haujlwm tseem ceeb hauv kev kho thiab kev txhim kho ntawm cov kev pabcuam stellite, uas tuaj yeem txuas ntxiv cov kev pabcuam lub neej ntawm cov tib neeg thiab txo cov nqi ntau lawm. Nrog kev txhim kho kev sib txuas ua lag luam wardability, lub weldability ntawm stellite yuav muaj kev txhim kho ntxiv, thiab nws daim ntawv thov hauv vuam yuav ntau.