Hlau vuam hlau hardfacing
Kev faib tawm los ntawm cov khoom siv thiab cov khoom sib xyaw
1. Cov Hlau Uas Siv Hlau Ua Los Ntawm Hlau
Cov hlau vuam hlau uas siv hlau yog cov khoom siv tawv uas siv ntau tshaj plaws, uas tau muab faib ua cov hom hauv qab no:
Pearlitic steel hardfacing xov hlauFeem ntau siv rau kev kho cov khoom ua haujlwm uas tsis muaj kev ntxhov siab ntau, xws li cov ncej thiab cov iav. Qhov nyuaj ntawm cov txheej txheem yog txij li 20 txog 40 HRC. Nws muaj peev xwm ua tau zoo thiab muaj zog heev.
Martensitic hlau hardfacing xov hlau: Cov txheej txheem ua cov qauv martensitic tom qab quenching, nrog rau qhov nyuaj ntawm 40 txog 60 HRC. Nws muaj kev tiv thaiv zoo thiab tsim nyog rau cov khoom ua haujlwm hauv qab qhov nruab nrab thiab siab-kev ntxhov siab hnav, suav nrog lub plhaub crusher yob thiab cov hniav thoob excavator.
Cov xov hlau tawv tawv uas muaj cov chromium siabUa los ntawm cov hlau cam khwb cia hlau uas muaj cov chromium ntau txog 15% txog 30%. Muaj ntau cov chromium carbide theem nyuaj nyob rau hauv lub overlay, ua rau muaj qhov nyuaj ntawm 55 txog 65 HRC. Hom no muaj kev tiv thaiv kev hnav zoo heev thiab qee qhov kev tiv thaiv corrosion, thiab yog cov hlau tawv uas siv ntau tshaj plaws hauv kev lag luam mining thiab metallurgy.
2. Cov Hlau Hlau Uas Siv Nickel Ua Rau Cov Hlau Hlau Uas Siv Tau Los Ntawm Nickel
Nrog nickel ua lub matrix thiab chromium, molybdenum, boron thiab lwm yam khoom sib xyaw ntxiv, cov hlau nickel-based hardfacing muaj kev tiv thaiv corrosion zoo heev thiab tiv taus kub siab. Nws qhov nyuaj yog 30 txog 50 HRC, thiab qhov tawv zoo dua li cov hlau cam khwb cia hlau high-chromium. Nws yog dav siv rau kev ua kom tawv ntawm cov khoom uas xav tau kev tiv thaiv corrosion thiab corrosion kub siab, xws li cov qhov chaw kaw valve, cov thawv tshuaj thiab cov hniav turbine. Nws tus nqi siab dua li cov hlau hlau.
3. Cov Hlau Vuam Uas Muaj Cobalt
Vim muaj cobalt ua cov hlau tseem ceeb, cov hlau no muaj zog kub heev, tiv taus corrosion thiab thermal qaug zog. Lawv tuaj yeem ua haujlwm tas li ntawm 600 ℃ txog 800 ℃. Lawv feem ntau yog siv rau cov haujlwm siab xws li cov qhov kub siab, cov pwm kub forging thiab cov hniav turbine. Vim tias tus nqi siab, lawv qhov kev siv tau tsawg.
4. Tungsten Carbide Hardfacing Vuam Hlau
Cov khoom siv tungsten carbide ua haujlwm ua cov theem tawv thiab sib xyaw nrog cov hlau matrix. Lub overlay ncav cuag qhov nyuaj ntawm 60 txog 70 HRC, thiab nws qhov kev tiv thaiv hnav yog 2 txog 3 zaug ntawm cov hlau cam khwb cia siab chromium. Nws feem ntau yog siv rau cov khoom uas raug kev txom nyem los ntawm kev hnav tsis tshua muaj kev ntxhov siab, xws li lub taub hau txiav tshuab tiv thaiv, cov tshuab txiav dredger thiab cov thee chutes. Nws qhov tsis zoo tseem ceeb yog qhov brittleness siab thiab tsis zoo tiv thaiv kev cuam tshuam.
Kev faib tawm los ntawm Kev Tsim Khoom thiab Daim Ntawv
1. Cov Hlau Vuam Khoom Siv Hardfacing
Cov xov hlau tawv tawv no yog ua los ntawm kev sib xyaw ua ke thiab kev kos duab hlau, thiab muaj cov khoom sib xyaw ua ke zoo ib yam thiab ruaj khov, cov txheej txheem tsim khoom yooj yim thiab tus nqi qis. Feem ntau lawv siv rau kev vuam siv roj thiab kev vuam siv submerged arc.
2. Cov Hlau Vuam Flux-cored Hardfacing
Cov hlau no muaj cov hlau sab nraud uas muaj cov hmoov hlau sib xyaw, cov tshuaj arc stabilizers, deoxidizers thiab lwm yam khoom. Kev ua tau zoo ntawm cov overlay tuaj yeem hloov kho tau yooj yim los ntawm kev hloov kho cov mis hmoov. Nws muaj kev ua haujlwm siab, kev vuam ruaj khov thiab qhov zoo li vuam du. Raws li cov khoom lag luam sai tshaj plaws hauv kev lag luam hardfacing hauv xyoo tas los no, nws cov feem ntawm kev ua lag luam tau maj mam dhau ntawm cov hlau khov.
Kev faib tawm los ntawm Txoj Kev Vuam
Lawv tau muab faib ua cov xov hlau tawv uas muaj roj tiv thaiv, cov xov hlau tawv uas nyob hauv qab dej arc, cov xov hlau tawv uas tiv thaiv tus kheej thiab cov xov hlau tawv tungsten arc. Ntawm lawv, cov xov hlau tawv uas tiv thaiv tus kheej tsis tas yuav muaj roj tiv thaiv sab nraud, ua rau lawv zoo tagnrho rau kev tsim kho sab nraum zoov thiab siv dav hauv kev kho cov haujlwm loj.
Cov Ntsiab Cai Xaiv Rau Cov Hlau Vuam Hardfacing
Kev xaiv cov hlau vuam tawv yuav tsum coj peb yam tseem ceeb los xav txog: cov xwm txheej ua haujlwm, cov peev nyiaj thiab cov kev xav tau tom qab ua tiav.
Kev xaiv raws li hom kev hnav thiab cov xwm txheej kev pabcuam
Kev hnav tsis tshua muaj zog: Xaiv cov xov hlau uas muaj chromium siab lossis cov xov hlau tungsten carbide, xws li LZ60 thiab D60.
Kev hnav khaub ncaws nruab nrab thiab siab: Xaiv cov hlau martensitic uas sib npaug qhov tawv thiab kev hnav tsis kam, xws li D50 thiab 414N.
Kev pabcuam xeb thiab kub siab: Xaiv cov xov hlau uas muaj nickel lossis cobalt, suav nrog ERNiCrMo-4 thiab Stellite 6.
Kev kho dua tshiab ntawm cov ncej thiab cov iav: Txais yuav cov hlau pearlitic-martensitic kom ntseeg tau tias muaj peev xwm ua haujlwm tau zoo.
Kev xaiv raws li kev siv nyiaj txiag
Feem ntau cov xov hlau uas muaj hlau yog tus nqi ntawm 10 ~ 50 RMB ib kilogram, cov xov hlau uas muaj nickel yog tus nqi ntawm 100 ~ 300 RMB ib kilogram, thiab cov xov hlau uas muaj cobalt tshaj 500 RMB ib kilogram. Vim yog xav kom ua tau raws li qhov yuav tsum tau ua, cov xov hlau uas muaj hlau yog cov uas nyiam siv los txo cov nqi.
Kev xaiv raws li cov kev xav tau tom qab ua tiav
Yog tias xav tau kev ua haujlwm tom qab ua kom tawv, siv cov xov hlau pearlitic lossis martensitic uas muaj qhov tawv hauv qab 45 HRC. Yog tias cov khoom ua haujlwm tuaj yeem muab tso rau hauv kev pabcuam ncaj qha yam tsis tau ua ntxiv, cov xov hlau uas muaj qhov tawv thiab tiv taus hnav siab raug pom zoo.
IV. Cov Lus Cim Txog Kev Siv Cov Hlau Vuam Hardfacing
Kev kho ua ntej ntawm workpiece
Tshem tawm cov roj, xeb thiab cov txheej txheem qaug zog ntawm qhov chaw ua haujlwm ua ntej ua kom tawv kom tiv thaiv cov qhov tsis zoo xws li porosity, slag inclusion thiab overlay peeling. Rau cov khoom siv tawg, txhua qhov tawg yuav tsum tau tshem tawm tag nrho ua ntej vuam.
Ua ntej thiab txias qeeb
Thaum siv cov xov hlau uas muaj zog heev rau cov khoom ua haujlwm uas tuab dua 20 hli, ua kom cov khoom ua haujlwm sov rau 150 ℃ ~ 300 ℃. Siv cov khoom rwb thaiv tsev kom txias qeeb tom qab vuam kom tsis txhob muaj kab nrib pleb hauv cov txheej txheej. Qhov kev ntsuas no yog qhov tseem ceeb rau cov hlau martensitic thiab cov hlau cam khwb cia uas muaj chromium siab uas muaj qhov sib zog heev.
Kev tswj cov kev teeb tsa hardfacing
Kho qhov hluav taws xob thiab qhov hluav taws xob raws li txoj kab uas hla ntawm cov hlau. Rau cov hlau flux-cored uas muaj txoj kab uas hla 1.2 hli siv rau hauv kev vuam uas muaj roj tiv thaiv, qhov hluav taws xob feem ntau yog teeb tsa ntawm 200 ~ 300 A thiab qhov hluav taws xob ntawm 25 ~ 30 V. Qhov hluav taws xob siab dhau heev yuav hlawv cov khoom sib xyaw thiab ua rau lub overlay tsis ua haujlwm zoo.
Kev tswj tus nqi dilution
Txais yuav cov cua sov qis thaum lub sijhawm ua kom tawv tawv kom txwv tsis pub cov hlau nkag mus rau hauv paus thiab txo qhov dilution, yog li ua kom cov khoom sib xyaw ntawm cov txheej txheej ua raws li cov qauv tsim. Feem ntau, 2 txog 3 qhov kev hla dhau yog txaus kom ua tau raws li qhov yuav tsum tau ua.
Kev tiv thaiv kev nyab xeeb
Cov pa luam yeeb thiab cov hluav taws xob arc raug tsim tawm thaum lub sijhawm ua haujlwm tawv. Cov neeg ua haujlwm yuav tsum hnav lub ntsej muag tiv thaiv plua plav thiab lub kaus mom hlau vuam, thiab xyuas kom muaj cua nkag tau zoo ntawm qhov chaw ua haujlwm.
V. Cov Qauv Kev Loj Hlob ntawm Kev Lag Luam Hlau Hardfacing
Cov xov hlau flux-cored hloov cov xov hlau khov kho
Nrog rau kev hloov kho cov khoom sib xyaw ua ke yooj ywm, kev ua haujlwm siab thiab kev tsim cov vuam zoo, cov xov hlau flux-cored hardfacing maj mam hloov cov xov hlau khov kho, nrog rau lawv cov feem lag luam loj hlob zuj zus.
Kev txhim kho mus rau kev ua tau zoo siab
Qhov kev thov rau cov xov hlau tawv tshwj xeeb uas muaj kev tiv taus kev hnav zoo, kev tiv taus corrosion thiab kev tiv taus kub siab rau cov xwm txheej ua haujlwm hnyav tseem nce ntxiv. Cov xov hlau tawv uas muaj zog tungsten carbide thiab nano-reinforced tau maj mam muab tso rau hauv kev siv hauv kev lag luam.
Kev tsim kho kom zoo rau ib puag ncig
Cov xov hlau tawv uas muaj pa phem tsawg thiab tsis muaj kuab lom tsawg tab tom raug tsim los txo cov khoom phom sij hauv cov pa phem vuam thiab ua raws li cov cai ib puag ncig.
Kev sib phim cov thev naus laus zis ntse
Cov xov hlau tawv tshwj xeeb uas tsim los rau kev tsim khoom tsis siv neeg tau tsim los koom tes nrog cov khoom siv tawv tsis siv neeg thiab cov neeg hlau vuam, kom txhim kho kev ua haujlwm ntau lawm thiab kev ruaj khov zoo.
Kev Taw Qhia Txog Lub Tuam Txhab
Tangshan Runxing Machinery Co., Ltd., ib lub chaw tsim khoom tshaj lij nyob hauv Tangshan, Hebei Xeev uas tsom mus rau R&D, kev tsim khoom thiab kev pabcuam tsim kho ntawm cov khoom siv hlau tawv tawv uas tiv taus kev hnav, tau tsim muaj xyoo 2010.
Peb cov khoom tseem ceeb suav nrog chromium carbide overlay (CCO) cov phaj hnav, cov txheej txheem ua tiav kev cai hnav, cov kav dej tiv taus hnav thiab cov khoom siv yeeb nkab, cov xov hlau vuam flux-cored hardfacing, cov tshuab vuam hardfacing tsis siv neeg, thiab kev pabcuam kho cov khoom siv roller surfacing. Peb ua raws li lub tswv yim ua lag luam ntawm "Kev Ncaj Ncees, Kev Zoo Tshaj Plaws, Kev Tsim Kho Tshiab & Kev Txhim Kho Kom Ruaj Khov" thiab muaj cov thev naus laus zis hardfacing hlau nto.
Peb muab cov kev daws teeb meem uas tsis yooj yim hnav rau cov cement, hlau, kev tsuas, chaw nres nkoj thiab kev lag luam dredging thoob ntiaj teb, thiab tau txais lub koob npe zoo hauv kev lag luam hauv Russia thiab Central Asia.
Txhua yam lag luam xa tawm tau txais kev tso cai thiab ua los ntawm Hebei Yuwan International Trade Co., Ltd. Lub tuam txhab lag luam no ua tiav txhua yam haujlwm xa tawm suav nrog kev tshem tawm kev lis kev cai, kev xa khoom, cov ntaub ntawv thiab kev sau nyiaj. Peb lub Hoobkas tsom mus rau kev tsim khoom thiab kev tsim khoom kom ntseeg tau tias cov khoom zoo ruaj khov thiab xa khoom raws sijhawm.
Runxing Machinery vam tias yuav tsim kom muaj kev koom tes ntev thiab ua tiav kev sib pab nrog koj!
Kev nthuav qhia
Cov Lus Nug Feem Ntau
Thov koj qhia qhov qib, qhov dav, qhov tuab, qhov yuav tsum tau kho qhov chaw thiab qhov ntau npaum li cas koj xav tau yuav.
Cov nqi sib txawv raws li kev hloov pauv ntawm cov nqi raw khoom.
30% T/T ua ntej, tshuav nyiaj ua ntej xa khoom
