Kev Txheeb Xyuas Txog SAW Flux-cored Wire Hardfacing Technology
Txoj Cai Ua Haujlwm thiab Cov Yam Ntxim Saib ntawm Cov Txheej Txheem
2.1 Txoj Cai Ua Haujlwm
Thaum SAW hardfacing nrog cov hlau flux-cored, lub arc hlawv ntawm qhov kawg ntawm cov hlau thiab qhov chaw substrate. Cov granular flux npog thaj chaw arc cais cov huab cua ntawm lub pas dej molten thiab tiv thaiv cov hlau molten los ntawm oxidation thiab nitriding. Cov hlau flux-cored lub hlau sheath yaj nyob rau hauv lub cua sov ntawm lub arc, thaum cov hmoov hlau hauv lub core yaj rau hauv lub pas dej molten, kho cov tshuaj lom neeg ntawm cov txheej surfacing. Tom qab txias, cov slag tsim los ntawm cov flux khov rau ntawm qhov chaw ntawm lub weld, uas tuaj yeem tshem tawm yooj yim, tawm hauv ib txheej du, siab-hardness surfacing.
2.2 Cov Yam Ntxim Saib ntawm Cov Txheej Txheem Tseem Ceeb
Kev Ua Haujlwm Zoo Tshaj Plaws: SAW siv tau tam sim no loj (feem ntau yog 300 ~ 800A) rau kev vuam tas mus li, qhov nrawm ntawm kev tso tawm tuaj yeem ncav cuag 8 ~ 12 kg / teev, uas yog 2 ~ 3 zaug siab dua li ntawm kev vuam tes arc, tsim nyog rau kev tsim cov phaj hnav loj hauv thaj chaw loj.
Cov Khoom Siv Alloy Uas Tswj Tau: Cov hlau flux-cored tuaj yeem ntxiv ntau yam carbide-forming elements xws li chromium, molybdenum, vanadium, tungsten thiab niobium rau hauv cov hmoov core, uas tuaj yeem tswj tau qhov nyuaj thiab hnav tsis kam ntawm cov txheej surfacing los ntawm kev kho cov ntsiab lus ntawm cov ntsiab lus no, piv nrog cov hlau khov kho, nws muaj kev ywj pheej ntau dua hauv kev tsim alloy.
Kev Tsim Zoo: Nyob rau hauv kev tiv thaiv ntawm submerged arc flux, lub surfacing txheej yog sib xws thiab du, tsis muaj pom tseeb splatter, thiab cov txheej txheem tom qab vuam yog me me. Qhov tob nkag mus tuaj yeem hloov kho los ntawm kev hloov pauv cov txheej txheem vuam, uas tuaj yeem tswj tau qhov nrawm ntawm lub substrate rau txheej surfacing, kom ntseeg tau tias qhov nyuaj thiab hnav tsis kam ntawm cov txheej surfacing.
Kev Ua Haujlwm Ruaj Khov Tsis Siv Neeg: Tag nrho cov txheej txheem tuaj yeem ua tiav los ntawm kev siv tshuab thiab kev ua haujlwm tsis siv neeg, uas txo cov kev xav tau rau cov neeg ua haujlwm cov txuj ci thiab xyuas kom meej tias qhov zoo ntawm txhua lub phaj hnav.
Kev faib tawm thiab kev ua tau zoo ntawm cov khoom siv sib xyaw ua ke
Cov xov hlau SAW flux-cored rau cov phaj hnav hardfacing feem ntau yog muab faib ua pawg raws li lawv cov khoom sib xyaw, thiab cov txheej txheem sib xyaw sib txawv sib raug rau cov xwm txheej thov sib txawv thiab kev tiv thaiv hnav. Cov kev faib tawm feem ntau yog raws li nram no:
| Lub cev hlau nplaum | Cov Ntsiab Lus Tseem Ceeb | Qhov nyuaj (HRC) | Cov yam ntxwv tseem ceeb ntawm kev ua tau zoo | Cov Ntawv Thov Ib Txwm Muaj |
| Hom Hlau Cam Khwb Uas Muaj Chromium Siab | Cr 15 ~ 30%, C 2 ~ 5%, me me ntawm Mo, Ni, Nb | 55~65 | Kev tiv thaiv zoo heev ntawm kev sib txhuam, qee qhov kev cuam tshuam tsis kam, tus nqi qis, lub cev alloy laus | Cov phaj hnav dav dav hauv kev khawb av, cov ntaub thaiv crusher, cov ntaub thaiv cement mill, cov phaj scraper conveyor |
| Hom Chromium Carbide Sib xyaw | Cr 25 ~ 40%, C 3 ~ 6%, ntxiv V, W, Ti | 60~68 | Feem ntau ntawm cov carbide tawv, kev hnav tsis kam zoo heev, me ntsis tsis zoo | Cov xwm txheej uas yuav tsum tau hnav ntau xws li cov khoom siv ua xuab zeb, cov hniav sib tsoo ore, cov phaj hniav thoob excavator |
| Hom Martensite Uas Muaj Carbon Tsawg | Cr 4 ~ 10%, Mo 1 ~ 3%, Mn 1 ~ 2%, C 0.2 ~ 0.6% | 35~50 | Kev cuam tshuam zoo, kev sib txuas zoo tawg, tuaj yeem dais qhov cuam tshuam loj, kev hnav tsis kam nruab nrab | Hniav tsheb nrau av, ntug phaj thoob khawb av, qhov chaw khawb av loj uas xav tau kev tiv taus kev cuam tshuam siab |
| Niobium Vanadium Carbide Hom | Nb 10 ~ 20%, V 5 ~ 15%, Cr 10 ~ 15% | 62~68 | Cov carbide tawv zoo, tiv taus kev hnav zoo heev thiab ua haujlwm kub zoo | Cov xwm txheej hnav khaub ncaws kub siab xws li cov phaj conveyor kub siab, cov khoom siv sintering |
| Hom Khoom Siv Ua Los Ntawm Cov Khoom Siv Uas Muaj Zog Sib Xyaws Ua Ke | Ntxiv cov khoom siv ceramic xws li WC, TiC rau hauv cov hmoov av | 65~72 | Kev hnav tsis kam heev, tus nqi siab | Cov xwm txheej hnav hnyav heev xws li cov nruas txiav thee, cov tshuab txiav txoj kev |
Cov Cim Qhia Txog Kev Ua Tau Zoo ntawm Cov Phaj Hnav
Kev ua tau zoo ntawm cov phaj hnav hardfacing feem ntau yog soj ntsuam los ntawm cov cim qhia tseem ceeb hauv qab no:
4.1 Qhov nyuaj ntawm txheej nto
Qhov nyuaj yog qhov qhia yooj yim tshaj plaws los ntsuas qhov hnav tsis kam. Feem ntau hais lus, qhov nyuaj dua, qhov zoo dua qhov kev hnav tsis kam abrasive. Qhov nyuaj ntawm cov phaj hnav hardfacing hauv khw feem ntau yog concentrated hauv 50 ~ 65 HRC, thiab cov khoom tshwj xeeb tuaj yeem ncav cuag ntau dua 70 HRC. Nws yuav tsum tau sau tseg tias kev sim qhov nyuaj yuav tsum tau ua tom qab txheej surfacing tau ruaj khov, feem ntau tom qab tshem tawm qhov chaw 1 ~ 2 hli slag thiab txheej dilution kom ntseeg tau tias qhov tshwm sim ntawm kev sim yog qhov tseeb.
4.2 Tus Nqi Dilution
Tus nqi dilution yog hais txog qhov sib piv ntawm cov khoom siv substrate yaj sib xyaw rau hauv txheej surfacing. Tus nqi dilution siab dhau yuav txo cov ntsiab lus ntawm cov khoom sib xyaw hauv txheej surfacing, ua rau txo qhov nyuaj thiab hnav tsis kam. Rau SAW hardfacing nrog flux-cored wire, kev tswj hwm cov txheej txheem tsim nyog tuaj yeem tswj tus nqi dilution hauv 10 ~ 20%, thiab ntau txheej surfacing tuaj yeem txo qhov cuam tshuam ntawm dilution.
4.3 Kev Tiv Thaiv Kev Tawg
Feem ntau cov txheej tawv tawv uas hnav hnyav yog cov khoom siv carbon thiab cov khoom siv hlau siab, uas yooj yim ua rau muaj qhov tawg vuam thaum lub sijhawm txias. Kev tsim cov mis tsim nyog ntawm cov hlau flux-cored thiab kev ua kom sov ua ntej vuam (feem ntau ua kom sov rau 150 ~ 300 ℃ raws li cov txheej txheem sib txawv) tuaj yeem txo qhov kev tawg. Rau cov ntawv thov uas tsis tas yuav tawg ntawm qhov chaw ntawm lub phaj hnav, cov txheej txheem hlau carbon qis lossis cov qauv tshwj xeeb uas tiv taus kev tawg tuaj yeem xaiv tau.
4.4cov hlau carbon, thiab cov phaj sib xyaw ua ke uas muaj zog tuaj yeem ncav cuag ntau dua 20 timKev Tiv Thaiv Hnav
Qhov qhia ncaj qha tshaj plaws los ntsuam xyuas qhov kev ua tau zoo ntawm lub phaj hnav yog qhov tsis kam hnav sib piv, uas yog, qhov sib piv ntawm qhov poob ntawm lub phaj hnav kuaj thiab cov qauv txheem nyob rau hauv tib qho kev xeem hnav. Qhov tsis kam hnav ntawm cov phaj hlau chromium siab feem ntau yog 5 ~ 10 npaug ntawm cov es qis ib txwm.
Phau Ntawv Qhia Xaiv Rau Cov Xwm Txheej Sib Txawv
Thaum xaiv SAW flux-cored hlau rau hnav phaj hardfacing, nws yuav tsum tau phim raws li daim ntawv tsis ua haujlwm tseem ceeb ntawm qhov hnav:
Kev hnav tsis zoo ntawm kev cuam tshuam tsawgXws li cov khoom siv cement raw chute, ore screening plate, sand conveyor. Nws raug pom zoo kom xaiv cov hlau flux-cored hom chromium siab nrog 58 ~ 62 HRC, uas muaj kev ua haujlwm siab thiab tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm lub neej ua haujlwm.
Kev cuam tshuam loj thiab kev hnav abrasiveXws li cov hniav bulldozer, lub thoob tshuab engineering, lub taub hau rauj mine. Nws yog qhov yuav tsum tau tias cov txheej uas tsis yooj yim hnav muaj qee qhov tawv thaum muaj kev tiv thaiv hnav, thiab nws raug pom zoo kom xaiv cov hlau martensitic alloy flux-cored nrog 40 ~ 50 HRC kom tsis txhob tev thiab tawg ntawm cov txheej saum npoo thaum muaj kev cuam tshuam.
Cov xwm txheej hnav khaub ncaws siab heevXws li cov khoom siv ua haujlwm hauv kev khawb thee, kev tsim kho txoj kev milling hnav phaj, hlau ore crushing liners. Nws raug pom zoo kom xaiv chromium carbide composite lossis ceramic reinforced flux-cored hlau nrog 62 ~ 68 HRC, uas tuaj yeem ntev lub neej kev pabcuam ntawm cov khoom, txawm hais tias tus nqi siab.
Kev hnav khaub ncaws kub heevXws li cov pallets tshuab sintering, coke qhov cub conveyor phaj, metallurgical slag ua phaj. Nws raug pom zoo kom xaiv niobium-vanadium alloyed flux-cored hlau, uas tswj tau qhov nyuaj siab thiab oxidation tsis kam ntawm qhov kub ua haujlwm txog li 600 ℃.
Cov Ntsiab Lus Yuav Tsum Tau Saib Xyuas Hauv Kev Vuam
Yuav kom tau txais cov phaj hnav hardfacing zoo, nws yog qhov tsim nyog los tswj cov ntsiab lus tseem ceeb ntawm cov txheej txheem vuam:
Kev Npaj Ua Ntej VuamCov nplaim ntawm cov khoom siv yuav tsum tau ntxuav kom huv si kom tsis txhob muaj roj, xeb thiab cov nplai oxide kom tsis txhob muaj qhov porosity thiab cov qhov tsis zoo. Rau cov khoom siv tuab thiab cov xov hlau uas muaj cov hlau sib xyaw ua ke, kev ua kom sov ua ntej rau 150 ~ 300 ℃ tuaj yeem txo qhov kev ntxhov siab ntawm kev vuam thiab tiv thaiv kev tawg.
Kev Xaiv ParameterRau cov hlau flux-cored uas muaj 1.2mm ~ 2.4mm txoj kab uas hla, feem ntau qhov vuam tam sim no yog 250 ~ 600A, qhov hluav taws xob vuam yog 28 ~ 38V, thiab qhov ceev vuam yog 300 ~ 600mm / feeb. Qhov loj dua ntawm txoj kab uas hla ntawm cov hlau, qhov siab dua qhov tam sim no sib xws. Kev txo qhov tam sim no vuam thiab nce qhov ceev vuam tuaj yeem txo qhov nrawm ntawm cov substrate.
Kev Tsim Txheej Txheem SurfacingFeem ntau, qhov tuab ntawm cov txheej uas tsis yooj yim hnav yog tsim los ntawm 3 ~ 12 hli. Rau ntau txheej, qhov kub ntawm cov txheej yuav tsum tswj tsis pub tshaj 300 ℃ kom tsis txhob muaj cov noob loj loj uas cuam tshuam rau kev ua haujlwm. Rau cov phaj hnav uas xav tau kev khoov thiab kev ua tiav tom qab, kev ua tiav ntawm cov khoom siv tom qab kev khoov ua ntej kom tsis txhob muaj kev tawg los ntawm kev khoov tom qab.
Kev Kho Mob Tom Qab VuamTom qab vuam, nws yuav tsum tau maj mam txias, tshwj xeeb tshaj yog rau cov xov hlau uas muaj cov hlau sib xyaw ua ke, kom tsis txhob tawg vim txias sai. Rau cov khoom uas xav tau kev txo kev ntxhov siab, kev txo kev ntxhov siab annealing tuaj yeem ua tiav ntawm 200 ~ 300 ℃ tom qab vuam kom tshem tawm cov kev ntxhov siab vuam seem.
Kev Loj Hlob ntawm Kev Lag Luam
Nyob rau hauv xyoo tas los no, SAW flux-cored hlau rau hnav phaj hardfacing muaj cov lus qhia kev loj hlob hauv qab no:
Ua ntej,kev tsim cov khoom siv hlau ua tau zoo, ntau thiab ntau daim ntawv thov xav tau kev hnav tsis kam siab dua thiab lub neej ntev dua, yog li kev txhim kho ntawm cov xov hlau sib xyaw ua ke xws li WC thiab TiC tab tom nrawm dua, thiab qhov sib piv ntawm cov xov hlau siab hauv kev ua lag luam nce ntxiv txhua xyoo.
Qhov thib ob,tsis muaj kab nrib pleb thiab kev txhim kho kom ruaj khov, ntau daim ntawv thov engineering xav tau tias qhov chaw ntawm lub phaj hnav tsis pub tawg, uas txhawb kev tsim cov qauv tsis tshua muaj carbon tawg, uas sib npaug qhov nyuaj thiab kev tawv los ntawm kev ua kom zoo dua qhov sib piv ntawm cov hlau thiab kev tswj hwm microstructure.
Qhov thib peb,kev tsim khoom zoo rau ib puag ncig, tiam tshiab ntawm cov hlau flux-cored txo cov ntsiab lus ntawm cov khoom phom sij xws li cobalt thiab cov khoom siv radioactive, thiab cov khoom sib phim submerged arc kuj tsim mus rau qhov tsis muaj kuab paug thiab cov kev taw qhia rov ua dua tshiab, uas ua tau raws li qhov yuav tsum tau ua ntawm kev tsim khoom ntsuab.
Qhov thib plaub,kev txhim kho tshwj xeeb, rau ntau yam kev hnav khaub ncaws ntawm ntau yam lag luam, cov chaw tsim khoom tau tsim ntau yam khoom tshwj xeeb, uas tuaj yeem ua tiav qhov kev ua tau zoo dua, zam kev pov tseg ntawm kev ua tau zoo lossis lub neej tsis txaus los ntawm kev siv cov khoom dav dav.
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
Tau kawg, peb tuaj yeem muab cov qauv dawb rau cov neeg siv khoom tab sis cov neeg siv khoom yuav tsum them tus nqi xa khoom.
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
Yog, yog tias koj muaj koj tus kheej tsim, peb tuaj yeem tsim raws li koj qhov kev qhia thiab daim duab.
