Sintered Refractories
AGRM International Engineering Co., Ltd., yog lub tuam txhab kev tshaj lij tshwj xeeb hauv kev txhawb nqa thiab kev siv cov cuab yeej siv hluav taws xob. Kev txhawb nqa los ntawm pab pawg ua haujlwm tau zoo thiab muaj kev tshaj lij, AGRM muaj kev txawj ntse hauv kev cog lus dav dav thiab kev cog lus ua haujlwm ntawm cov khoom siv hluav taws xob engineering.
Vim Li Cas Xaiv Peb
Kev paub nplua nuj
Peb tau txais kev nplua nuj nyob rau hauv kiln tsim, masonry kev tsim kho, installation thiab debugging, cua sov thiab ci, pub, ntau lawm tso zis kev kawm. Peb muaj ntau tshaj 50 xyoo ntawm kev paub nyob rau hauv industrial kiln thiab refractory daws.
Ntau yam kev thov
Peb muaj ob lub chaw tsim khoom ntawm cov khoom siv refractory thiab ib qho khoom siv ntau lawm. Peb cov khoom siv tsuas yog siv hauv kev lag luam iav, kev lag luam metallurgical, kev lag luam petrochemical, thiab kev lag luam khoom siv.
One-Stop Service
Peb muab kev daws teeb meem rau kev lag luam kiln tej yaam num, suav nrog kev tshawb fawb thiab kev tsim kho, kev muag khoom ntawm cov cuab yeej tseem ceeb thiab fittings, kev tsim kho thiab kev tsim ua tiav los yog ib feem ntawm cov haujlwm, ntshuam thiab xa tawm cov khoom siv thiab cov khoom siv, kev tshuaj xyuas cov neeg siv khoom, thiab kev pabcuam logistics.
Cov khoom siv dav
Peb lub ntsiab refractories muaj fused cam khwb cia refractories (AZS, mullite, siab zirconium, corundum), sintered refractories (xws li silicon carbide, chrome corundum, fireclay magnesia, thiab lwm yam), insulating refractories (xws li rwb thaiv tsev cib, board, pam vov, fiber, amic fiber. , thiab lwm yam), thiab monolithic refractories (xws li castable thiab mortar).
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![Silicon Carbide Bar]()
Silicon Carbide BarThaum ua hauj lwm kub tshaj 1600 degree, kev hnyav oxidation ntawm cov khoom siv hluav taws xob hlau, thiab impuring los ntawm quartz iav, thiab impuring los ntawm quartz iav, thiab impuring los...Ntau -
![Sillimanite cib]()
Sillimanite cibSillimanite refractory cib yog cov ntaub ntawv tseem ceeb rau iav rauv taws. AGRM muaj kev hloov kho ntawm cov cib refractory hauv ntau cov duab kom tau raws li cov kev cai tshwj xeeb. Rau cov cib...Ntau -
![Mullite Castable]()
Mullite CastableMullite castable yog cov khoom siv refractory zoo siv dav hauv kev lag luam xws li metallurgy, ceramics, thiab petrochemicals. Nws yog tsim los ntawm kev sib xyaw ua ke ntawm hluavtaws thiab ntuj...Ntau -
![Silicon Nitride-Bonded Silicon Carbide Cib]()
Silicon Nitride-Bonded Silicon Carbide CibSilicon nitride-bonded silicon Carbide Cib yog tsim los siv cov khoom zoo bauxite ua ke nrog cov oxides tshwj xeeb, silicon carbide, thiab cov nplaum tshwj xeeb. Cov cib yog zoo li tus los ntawm...Ntau -
![Silicon Carbide Refractory Phaj]()
Silicon Carbide Refractory PhajRaws li cov khoom siv refractory nrog kev ua tau zoo, silicon carbide refractory board yog dav siv hauv kev lag luam niaj hnub, tshwj xeeb tshaj yog nyob rau hauv kev lag luam uas yuav tsum tau...Ntau -
![Magnesium Cib]()
Magnesium CibMagnesium bricks, tseem hu ua magnesia cib, yog cov khoom siv refractory ua los ntawm magnesium oxide (MgO). Nws muaj nuj nqis heev hauv kev lag luam uas yuav tsum tau ua haujlwm kub vim nws cov...Ntau -
![Magnesite Refractory Cib]()
Magnesite Refractory CibMagnesite refractory cib yog cov ntaub ntawv tshwj xeeb uas siv feem ntau hauv cov khoom siv kub kub vim lawv qhov tshwj xeeb kub tsis kam, ua haujlwm ntev, thiab thermal conductivity. Cov cib no...Ntau -
![Corundum Mullite Cib]()
Corundum Mullite CibCorundum mullite cib yog cov khoom siv hluav taws xob ua haujlwm siab, feem ntau yog tsim los ntawm corundum (Al₂O₃) thiab mullite (3Al₂O₃·2SiO₂), paub txog lawv cov khoom zoo heev hauv cov ntawv...Ntau -
![High Chrome Cib]()
High Chrome CibCov khoom siv siab chromium cib yog tsim los ntawm corundum thiab fused chromium oxide, nrog rau kev ntxiv cov hmoov zoo thiab lwm yam khoom ntxiv. Cov ntaub ntawv no yog sib xyaw, zoo li, qhuav,...Ntau -
![Aluminium Magnesium Carbon Cib]()
Aluminium Magnesium Carbon CibAluminium Magnesium Carbon (AMC) cib yog ib hom refractory cib uas tau siv dav hauv kev lag luam steelmaking, tshwj xeeb tshaj yog nyob rau hauv ob sab ntawm steel ladles thiab converters. Cov cib...Ntau -
![Magnesia Chrome Cib]()
Magnesia Chrome CibMagnesia Chrome Bricks yog ib hom refractory cib ua los ntawm magnesia (MgO) thiab chrome ore (Cr2O3). Cov cib no paub txog lawv qhov kev tiv thaiv siab rau thermal shock, corrosion, thiab tshuaj...Ntau -
![Magnesia Carbon Cib]()
Magnesia Carbon CibMagnesia carbon bricks yog ib hom refractory cib feem ntau siv nyob rau hauv ib puag ncig nrog kub kub thiab aggressive chemical tej yam kev mob.Ntau
Luv Taw Qhia rau Sintered Refractories
Sintered refractories yog ib hom ntawm cov khoom siv refractory uas yog tsim los ntawm compacting thiab ces cua sov ib tug sib tov ntawm raw cov ntaub ntawv nyob rau hauv ib tug kub kub, nyob rau hauv qis dua lawv melting point. Cov txheej txheem no hu ua sintering. Sintered refractories paub txog lawv cov thermal thiab tshuaj tiv thaiv zoo heev. Cov txheej txheem sintering pab txhawm rau khi cov ntaub ntawv raw ua ke, tsim kom muaj cov khoom ruaj khov thiab ntom ntom uas ua rau cov refractory nws lub zog thiab ruaj khov. Qhov kub ntawm qhov sintering tshwm sim nyob ntawm qhov tshwj xeeb muaj pes tsawg leeg ntawm refractory, tab sis nws feem ntau yog li ntawm 1,200 txog 1,800 degrees Celsius.
Hnav Resistance
Cov neeg kho tshuab kev nyuaj siab ntawm sintered refractories tsis yog tsuas yog tshwm sim los ntawm lub siab, tab sis kuj los ntawm kev puas tsuaj thiab yaig ntawm cov khoom muab tub lim thaum lawv maj mam dhau los ntawm cov masonry hauv qhov cub. Kev ntxhov siab ntawm cov tshuab kuj tseem tuaj yeem yog vim qhov cuam tshuam ntawm cov pa nrawm nrawm uas muaj cov hmoov av zoo. Lub grinder simulates lub abrasive kev nyuaj siab zoo, tab sis cov txiaj ntsig feem ntau tsis tuaj yeem siv rau cov xwm txheej uas muaj nyob rau hauv qhov cub kub kub, tshwj xeeb tshaj yog thaum lub zog ntawm refractory bricks hloov vim muaj tshuaj lom neeg.
Thermal Expansion
Tag nrho cov ntaub ntawv raug hloov pauv raws li qhov kub thiab txias. Sintered refractories yuav shrink los yog nthuav thaum siv. Qhov kev hloov pauv mus tas li no tuaj yeem yog vim (i) hloov pauv hauv daim ntawv ntawm allotrope uas ua rau muaj kev hloov pauv hauv lub ntiajteb txawj nqus, (ii) cov tshuaj tiv thaiv uas tsim cov khoom tshiab nrog kev hloov pauv hauv lub ntiajteb txawj nqus, (iii) tsim cov kua theem, thiab (iv) sintering Cov tshuaj tiv thaiv, thiab (v) tuaj yeem tshwm sim vim cov nyhuv ntawm flux los yog alkali nrog plua plav thiab slag ntawm cov av nplaum refractory refractory, tsim alkali aluminosilicate, ua rau nthuav thiab tawg.
Thermal Shock Resistance
Thermal shock resistance yog ib qho tseem ceeb ntawm kev ua tau zoo. Nws characterizes tus cwj pwm ntawm sintered refractories ntawm qhov kub thiab txias poob siab uas feem ntau tshwm sim thaum lub sij hawm ua hauj lwm ntawm lub cub tawg. Qhov kub thiab txias yuav txo tau lub zog ntawm cov qauv cib thiab tej zaum yuav ua rau cov txheej txheem tawg los yog tev tawm. Muaj ob txoj hauv kev rau kev ntsuas thermal poob siab. Lawv yog (i) dej txias thiab (ii) cua txias. Nyob rau hauv cov txheej txheem dej-txias, daim ntawv xeem yog ib lub tog raj kheej txheem, rhuab mus rau 950 degrees Celsius, thiab ces txias nyob rau hauv cov dej txias ntws.
Thermal Stress yam ntxwv Thermal Conductivity
Thermal conductivity yog txhais raws li tus nqi ntawm cov cua sov uas ib txwm ntws mus rau saum npoo ntawm ib cheeb tsam ntawm ib lub sij hawm uas siv ib tug paub qhov kub thiab txias gradient. Nws muaj cov yam ntxwv dav dav ntawm cov cua kub ntawm sintered refractories thiab nyob ntawm cov tshuaj thiab mineralogical muaj pes tsawg leeg thiab kub ntawm txheej. Chav tsev ntawm kev ntsuas rau thermal conductivity ntawm refractory yog W / K * m, thiab thermal conductivity yog txiav txim siab siv lub phaj kub, kheej kheej, hollow lub tog raj kheej, los yog hlau txoj kev.
Tshwj xeeb kub
Thaum tshav kub kub tshwj xeeb yog lub zog tivthaiv nrog kub thiab khoom siv thiab txiav txim siab colorimetrically. Qhov txiaj ntsig no sawv cev rau lub zog (hauv joules) yuav tsum tau nce qhov kub ntawm 1 gram ntawm cov khoom los ntawm 1 degree Kelvin. Piv nrog rau cov dej, sintered refractories muaj peev xwm kub tsawg heev.
Pom Ntsig
Txhawm rau txiav txim siab ua kom sov, koj yuav tsum paub qhov pom tseeb ntawm qhov sintered refractories. Lub sij hawm bulk density yog hais txog qib ntawm huab hwm coj thiab ntim, nrog rau cov pores. Qhov ntom ntom feem ntau suav hais tias yog qhov porosity siab. Nws yog qhov ntsuas qhov hnyav ntawm cov khoom siv refractory tshwj xeeb. Rau ntau cov ntaub ntawv refractory, siab ceev yog ib qho kev qhia ntawm cov khoom zoo.
Cov hom ntawm Sintered Refractories
Sintered Refractory Cib
Sintered refractory cib, blocks, thiab vuas yog cov duab refractory uas tau muab tso rau hauv insulating furnaces, boilers, los yog lwm yam thermal txheej txheem phab ntsa. Feem ntau, refractory bricks yog cemented ua ke nrog refractory mortar. Cov duab refractory kuj suav nrog cov kev txhawb nqa catalyst, uas feem ntau muaj cov qauv ntxeem tau nrog thaj chaw loj, los yog cov qauv honeycomb uas tuav cov hlau catalyst muab tau yooj yim rau cov kwj ntawm reactive gases los yog lwm yam reactants.
Sintered Checker Phab ntsa
Sintered checker phab ntsa, los yog checker cib phab ntsa, yog cov duab refractory siv nyob rau hauv sulfur rov qab units los yog reactors xws li Claus reactors. Claus reactors combust corrosive hydrogen sulfide los yog qaub roj (refining by-product) thiaj li yuav tsim sulfur. Raws li cov duab refractory, cov phab ntsa checker tau dhau los ua ntau dua li choke rings vim tias lawv tsim cov roj sib xyaw zoo dua, uas ua rau cov tshuaj tiv thaiv thiab kev ua tau zoo. Qee cov qauv ntawm cov phab ntsa kos yog tsim nrog ib qho tseem ceeb manway rau kev saib xyuas. Txoj kev ua haujlwm tseem ceeb tuaj yeem tshem tawm qhov xav tau los rhuav tshem phab ntsa kom nkag mus, tshuaj xyuas, lossis kho cov raj lossis lwm yam khoom hauv nkoj.
Sintered Degassers Shapes
Sintered refractory cov duab uas siv los ua degassers yog siv los tshem tawm cov pa phem xws li hydrogen uas yuav ua rau cov porosity thiab txo lub zog. Static degassing cov cuab yeej siv cov khoom siv ntxeem tau los tshem tawm cov pa phem lossis impurities los ntawm cov pa tawm ntawm cov pa roj npuas rau hauv cov yaj. Teb degassers tig ceev ceev hauv cov yaj ua rau cov nyhuv shearing uas tawg cov hnab ntim roj rau hauv cov npuas me me rau kev tshem tawm. Raws li cov duab refractory, degassers tuaj yeem siv kev sib xyaw ua ke ntawm cov pa roj carbon monoxide thiab cov txheej txheem rotary los degas yaj.
Modular Sintered Refractory Shapes
Rauv liners yog modular refractory duab uas muaj ib tug series ntawm interlocking Cheebtsam uas haum los yog pawg ua ke los tsim ib tug tiv thaiv furnace hauv ob sab phlu. Induction furnaces feem ntau siv lub tshuab hluav taws xob hauv ob sab phlu uas tsim los ntawm cov ceramics uas tsis cuam tshuam nrog cov txheej txheem cua sov inductive. Liners tuaj yeem siv cov thaub qab ntawm ramming cement tom qab liner, tab sis tsis nyob hauv qhov sib cuam tshuam grooves. Qhov tsis muaj cov cement refractory ntawm cov seem ceramic txhim kho lub neej hauv ob sab phlu thiab yaj zoo ntawm cov duab refractory. Tus nplaig thiab zawj crucibles yog ib qho khoom siv hluav taws xob uas muaj qhov sib txuas ntawm cov khoom sib txuas uas sib dhos ua ke los tsim lub tshuab hluav taws xob hauv ob sab phlu lossis crucible.
Pouring Nozzles Shapes
Pouring nozzles, los yog orifices, yog cov duab refractory uas siv los tswj lossis ntsuas qhov ntws ntawm cov hlau molten lossis lwm yam khoom siv yaj. Atomization nozzles yog ib qho tseem ceeb hauv cov txheej txheem roj atomization siv los tsim cov hmoov hlau. Ceramic nozzles kuj tseem siv los tiv thaiv lwm yam khoom ntawm lub cev los ntawm arcs lossis abrasive dav hlau / moj tej tawg ntws. Pouring khob, pouring raj, tundish nozzles, thiab nruam nruam cov lus qhia kuj haum rau hauv qeb ntawm refractory duab.
Spargers Shapes
Spargers, los yog diffusers, yog ntxeem tau ceramic refractory duab uas yog siv los tshuab cov npuas zoo ntawm cov roj rau hauv cov hlau yaj kom tshem tawm impurities, particulates, los yog lwm yam detrimental melt gases, de-oxidize melts thiab pab cov tshuaj tiv thaiv. Lwm cov ntaub ntawv ntawm cov duab refractory muaj xws li kab teeb, kab, kab, crucibles, bar Tshuag, round stock, kiln rooj tog, phaj, rods, lim diffusers, thiab tube Tshuag los yog lub tog raj kheej.
Rauv
Cov cuab yeej siv hauv kev lag luam hlau yog kab nrog ntau yam sintered refractory Cheebtsam (xws li silicon dioxide, aluminosilicate, siab alumina, zirconium, magnesium oxide, spinel, chromium, thiab magnesium carbon) thiab cov ntaub ntawv (tag nrho, prefabricated duab thiab cib). Feem ntau cov smelting furnaces thiab tuav furnaces nyob rau hauv cov hlau foundry kev lag luam yog nruab nrog ceramic refractory cov ntaub ntawv. Kev xaiv ntawm cov khoom siv refractory no yog tsim los txo cov tshuaj tiv thaiv nrog cov hlau tshwj xeeb ua tiav. Lub ntsiab refractory hauv ob sab phlu muaj xws li reverberation rauv, crucible (lub lauj kaub) rauv, trough induction rauv, coreless induction rauv, hluav taws xob arc rauv, thiab ladle furnace. Cov qhov cub no muaj ntau yam khoom siv refractory, suav nrog silicon dioxide, alumina silicate, siab alumina, zircon, magnesia, spinel, chromium, thiab magnesia carbon.
Bio-Fuel Boiler
Sintered refractory cov ntaub ntawv yog siv nyob rau hauv lub internal qauv ntawm biofuel boilers (hauv ob sab phlu). Cov ntaub ntawv no yog cov khoom siv tsis yog xim hlau, uas tsis yaj lossis decompose ntawm qhov kub thiab txias (600-2000 degree ). Cov khoom tseem ceeb ntawm cov hauv ob sab phlu yog ua los ntawm cov khoom zoo li cov khoom siv (cib, blocks, thiab lwm yam) thiab tsis zoo li (pob zeb, mortar, hauv ob sab phlu, thiab lwm yam).
Combustion Chamber Partition Phab ntsa
Sintered silica cib feem ntau yog siv los tsim cov phab ntsa ntawm coke cub carbonization combustion chambers, qhib-hearth regenerators, high-temperature load-bearing parts of hot blast stoves, and other high-temperature furnaces. SiO2 cov ntsiab lus ntawm silica bricks yog ntau tshaj 93%, lub ntsiab tivthaiv yog phosphorous quartz, cristobalite, residual quartz, thiab iav.
Kev lag luam metallurgy
Sintered siab alumina cib yog siv nyob rau hauv metallurgical kev lag luam los tsim plugs thiab nozzles rau blast furnaces, kub moj tej tawg qhov cub, hluav taws xob rauv ru tsev, steel nruas thiab pouring tshuab. Ntau tshaj 48%, feem ntau yog tsim los ntawm corundum, mullite thiab iav.
Sintering txheej txheem ntawm Sintered Refractories
Cov txheej txheem sintered refractories sintering tuaj yeem muab faib ua rau theem.
Refractory Sintering txheej txheem – 1. Tus neeg saib xyuas tshem tawm & hlawv theem
Nrog rau qhov kub thiab txias, tus neeg sawv cev molding maj mam decomposes los yog vaporizes nrog sintered lub cev sab laug. Nyob rau tib lub sijhawm, tus neeg sawv cev molding ntau dua los yog tsawg dua ntxiv cov pa roj carbon monoxide rau lub cev sintered. Qhov nce ntawm cov pa roj carbon ntau hloov nrog hom thiab ntau ntawm cov neeg ua haujlwm molding nrog rau cov kev sib txawv sintering. Qhov saum npoo oxide ntawm cov hmoov tuaj yeem txo qis. Yog tias tus neeg sawv cev molding raug tshem tawm thiab cov tshuaj tiv thaiv carbon-oxygen tsis muaj zog, hydrogen tuaj yeem siv los txo cov oxidation ntawm cobalt thiab tungsten ntawm sintering kub. Cov kev ntxhov siab ntawm kev sib cuag ntawm cov hmoov hmoov maj mam ploj mus. Bonding hlau hmoov pib tsim rov qab thiab recrystallization. Nto diffusion pib tshwm sim thiab briquette zog txhim kho.
Refractory Sintering Txheej Txheem – 2. Khoom Theem Sintering Stage
Ntawm qhov kub ntawm qhov qub ua ntej lub sijhawm ua kua, lub sijhawm kawg cov tshuaj tiv thaiv txuas ntxiv mus. Meanwhile, solid-phase cov tshuaj tiv thaiv thiab diffusion tau intensified. Cov yas ntws ua nruj dua thiab lub cev sintered shrinks.
Refractory Sintering txheej txheem – 3. Ua kua theem Sintering theem
Thaum lub cev sintered nkag mus rau hauv cov kua theem, lub shrinkage yuav luag ua tiav raws li kev hloov pauv siv lead ua los tsim cov qauv thiab cov qauv ntawm cov hlau.
Refractory Sintering txheej txheem – 4. Cua txias theem
Nyob rau theem no, lub koom haum thiab theem muaj pes tsawg leeg ntawm cov hlau tuaj yeem hloov nrog cov cua txias sib txawv. Yog li ntawd, cov yam ntxwv no tuaj yeem siv los txhim kho cov alloy lub cev thiab cov khoom siv hluav taws xob nrog kev ua kom sov.
Refractory Sintering txheej txheem – 5. Infiltration
Infiltration yog ib qho tseem ceeb ntawm cov kua theem sintering txheej txheem. Nws hais txog lub peev xwm infiltration ntawm cov kua rau cov khoom. Yog hais tias ib tug poob ntawm cov kua yuav dispersed tag nrho rau saum npoo ntawm cov khoom thaum poob rau ntawm cov khoom, ces cov kua muaj infiltration muaj peev xwm thiab vice versa. Yog hais tias cov kua tsuas yog ntub qhov chaw ntawm cov khoom, ces nws muaj ib feem ntawm cov kua infiltration. Yog hais tias cov kua hlau tuaj yeem ntub tag nrho cov khoom ntawm cov khoom thaum lub sij hawm ua kua theem sintering, lub cev sintered yuav muaj me me pores. Yog tias lub peev xwm ntub dej tsis zoo, yuav muaj ntau lub cev tsis xws luag.
Refractory Sintering txheej txheem – 6. Shrinkage
Thaum lub sij hawm sintering txheej txheem, cemented refractory alloy compacts feem ntau muaj qhov tseem ceeb shrinkage. Lub shrinkage ntawm lub cev sintered yuav muab faib ua peb theem pib. Thaum thawj theem nrog qhov kub thiab txias hauv qab 1150 degree, lub cev sintered muaj qhov tshwm sim shrinkage. Txawm li cas los xij, qhov shrinkage nyob rau lub sijhawm no tsuas yog siv ob peb feem pua. Lub cev sintered muaj qhov shrinkage zoo nyob rau theem thib ob nrog qhov kub ntawm tshaj 1150 degree. Lub degree ntawm shrinkage tuaj yeem ncav cuag 80% ntawm tag nrho. Lub cev sintered ua tiav ntom tom qab ib feem me me ntawm shrinkage nyob rau hauv cov kua theem.
Cov yam ntxwv cuam tshuam rau Shrinkage hauv Sintered Refractories Sintering txheej txheem
Muaj ntau ntau yam cuam tshuam rau shrinkage nyob rau hauv sintered refractories sintering txheej txheem, feem ntau cov uas muaj npe hauv qab no.
Cua sov tus nqi
Lub shrinkage yuav ua raws li peb theem shrinkage yog tias qhov cua sov yog qhov qub, zoo li ob peb degrees 'nce toj ib feeb. Txawm li cas los xij, yog tias cov cua kub ceev ceev heev, qhov kev nthuav tawm ntawm qhov shrinkage yuav ncav cuag qhov siab tshaj plaws ntawm qhov kub siab tshaj nyob rau theem thib ob. Nws tau pom tias muaj cua sov siab yuav ua rau ea ntau ntawm coarse pores thiab npuas nyob rau hauv cov hlau vim hais tias cov roj tso tawm channel raug kaw nyob rau hauv cov kua theem. Yog li ntawd, cov cua kub ntau dhau tsis zoo rau kev ua kom lub cev sintered tag nrho.
Original Pores hauv Briquettes
Thaum briquettes yog sintered nyob rau hauv ib qho inert cua, lub shrinkage tus nqi yuav nce nrog txo cov briquette ceev. Tus txheeb ze shrinkage thiab txheeb ze shrinkage ceev ntawm briquette nrog sib txawv ntom yog tib yam. Qhov kawg ntom ntom ntawm cov hlau tsis cuam tshuam rau thawj qhov pores hauv lub compact. Txawm li cas los xij, thaum sintered nyob rau hauv ib qho chaw nquag, nws yog ib qho nyuaj rau tsim ib lub siab sintered lub cev nrog loj porosity. Yog li ntawd, qhov ceev ntawm cov compacts yuav tsum tau txhim kho kom muaj zog li sai tau hauv kev ua haujlwm tiag tiag.
Sib tsoo Degree & Mixture Size
Qhov me me ntawm qhov ntau thiab tsawg ntawm refractory alloy hais yog, qhov me me ntawm tus neeg qhov pores hauv lub cev sintered. Lub capillary siab ntawm cov kua yog inversely proportional rau lub vojvoog ntawm lub pores. Qhov kev ncua deb ntawm ob lub refractory alloy particles yog shortened nrog rau qhov txo ntawm cov nqi. Yog li ntawd, cov khoom me me yuav tau nyob ze thaum sintering. Tsis tas li ntawd, cov hmoov av nrog cov chaw loj dua muaj cov khoom sib txuas sai dua, cov nqi rov qab, thiab cov nqi tawg. Yog li ntawd, kev sib tsoo sib xyaw thiab cov khoom siv lead ua qub muaj qhov sib txawv shrinkage zoo los ntawm kev sib xyaw ua ke. Qhov kub ntawm qhov shrinkage pib muaj qhov txo qis thaum lub shrinkage ceev tau zoo heev ua ntej cov kua theem.
Kev sib xyaw ntawm Cobalt
Tsis muaj qhov tsis ntseeg tias cov ntsiab lus cobalt muaj qhov cuam tshuam rau qhov shrinkage tom qab ua kua theem. Qhov siab dua cov ntsiab lus cobalt yog, qhov siab dua qhov shrinkage yog. Cov kev sim qhia tau hais tias qhov nce ntawm cobalt kom muaj nuj nqis nyob rau hauv lub compact tuaj yeem cuam tshuam lub shrinkage ntawm thawj theem. Tab sis nws tuaj yeem txhawb nqa theem thib ob shrinkage vim hais tias lub contraction mechanism yog cov yas ntws thiab nce ntawm cobalt cov ntsiab lus yuav txhawb cov yas ntws.
Cov ntsiab lus carbon
Cov ntsiab lus carbon ntawm lub cev sintered cuam tshuam rau qhov pib kub ntawm cov kua theem thiab tus nqi ntawm cov kua theem. Yog li ntawd, cov ntsiab lus carbon cuam tshuam lub shrinkage ntawm tag nrho cov txheej txheem sintering. Nyob rau hauv txoj kev xav, cov ntsiab lus ntawm cov pa roj carbon ntau dhau ntawm qhov sib tov tsis yog tsuas yog txhawb nqa lub zog thib peb tab sis kuj txhawb nqa qhov kev cog lus thib ob.
Peb Daim Ntawv Pov Thawj
Peb tau txais cov qauv siv hluav taws xob patents thiab dhau daim ntawv pov thawj kev tswj hwm ib puag ncig thiab daim ntawv pov thawj kev tswj hwm zoo.
Peb lub Hoobkas
Peb muaj ob lub chaw tsim khoom ntawm cov khoom siv refractory thiab ib qho khoom siv ntau lawm.
Sintered Refractories: Qhov kawg FAQ Guide
Q: Dab tsi yog qhov kev faib tawm ntawm sintered refractories sintering txheej txheem?
Raws li lub xeev ntawm theem thaum sintering, sintering tuaj yeem muab faib ua cov khoom-theem sintering thiab kua-theem sintering (LPS). Carbide sintering yuav muaj cov kua theem, yog li nws belongs rau LPS.
Raws li cov yam ntxwv ntawm cov txheej txheem sintering, sintering tseem tuaj yeem muab faib ua hydrogen sintering, nqus sintering, qhib sintering, kub isostatic nias sintering, thiab lwm yam. Muaj ntau ntawm lawv tuaj yeem siv rau sintering ntawm cemented carbide.
Tsis tas li ntawd, cov npe ntawm cov ntaub ntawv tseem tuaj yeem yog cov txheej txheem kev faib tawm, xws li cemented carbide sintered, molybdenum taub hau sintering, thiab lwm yam.
Los ntawm cov ntsiab lus ntawm cov txheej txheem sintering, nws yog qhov tsim nyog los faib cov txheej txheem sintering rau hauv cov txheej txheem sintering thiab kua-theem sintering. Txawm li cas los xij, kev faib tawm raws li cov yam ntxwv ntawm cov txheej txheem sintering yog ntau dua hauv kev tsim khoom tiag tiag.
Q: Dab tsi yog qhov hloov pauv hauv sintered refractories sintering txheej txheem?
Qhov kev hloov ntawm briquette lub zog yog ntau dua. Lub zog ntawm kev cog lus ua ntej sintering yog qhov tsawg dhau los ntsuas los ntawm txoj kev dav dav, thaum nws tuaj yeem ua tau raws li ntau yam kev ua haujlwm hnyav nrog qhov yuav tsum tau muaj zog tus nqi tom qab sintering txheej txheem. Nws yog qhov pom tseeb tias qhov nce ntawm cov khoom muaj zog yog ntau dua li qhov ntom ntom.
Cov kev hloov pauv sai sai hauv cov khoom muaj zog thiab lwm yam khoom siv lub cev thiab cov khoom siv kho tshuab qhia tau tias muaj txiaj ntsig zoo hauv cov txheej txheem sintering. Txawm hais tias qhov sib chwv ntawm cov hmoov tau nce los ntawm kev quab yuam sab nraud, cov atoms thiab molecules ntawm cov hmoov tseem nyob hauv txoj kev random.
Tsis tas li ntawd, lub zog coupling ntawm cov khoom tsis muaj zog heev nrog cov nyhuv ntawm kev ntxhov siab sab hauv.
Txawm li cas los xij, kev sib cuag hauv lub xeev muaj cov kev hloov pauv zoo tom qab sintering vim tias cov atoms thiab cov molecules ntawm cov hmoov sib cuag saum npoo muaj cov tshuaj lom neeg, nrog rau kev hloov ntawm lub cev xws li diffusion, ntws, kev loj hlob ntawm cov nplej, thiab lwm yam.
Yog li ntawd, cov khoom muaj kev sib raug zoo ntau dua yam tsis muaj kev ntxhov siab sab hauv. Thaum kawg, cov khoom tau dhau los ua lub zog tag nrho nrog kev ua tau zoo heev.
Q: Yuav ua li cas sintered refractories ua?
Raw Material Xaiv:Thawj kauj ruam hauv kev tsim sintered refractories yog xaiv cov khoom siv raw uas tsim nyog. Cov ntaub ntawv nyoos muaj xws li purity oxides xws li alumina, magnesia, zirconia, thiab silica, nrog rau cov khoom ntxiv los txhim kho cov khoom tshwj xeeb.
Kev sib xyaw:Cov khoom siv raw uas tau xaiv yog sib xyaw ua ke hauv cov proportions meej kom ua tiav qhov xav tau refractory muaj pes tsawg leeg. Qhov no feem ntau yog ua nyob rau hauv mixers los yog yias mills los xyuas kom meej homogeneity.
Shaping:Cov khoom sib xyaw refractory yog tom qab ntawd ua rau hauv daim ntawv xav tau, xws li cib, duab, lossis monolithic castables. Shaping tuaj yeem ua tiav los ntawm cov txheej txheem xws li nias, extrusion, lossis casting, nyob ntawm seb daim ntawv thov tshwj xeeb.
Kev ziab:Tom qab shaping, cov khoom refractory yog qhuav kom tshem tawm cov dej noo thiab stabilize lawv cov qauv. Qhov no feem ntau yog ua nyob rau hauv kev tswj kub thiab av noo ib puag ncig kom tsis txhob tawg los yog warping.
Pre-sintering:Nyob rau hauv cov kauj ruam no, cov khoom qhuav refractory yog raug rau cov txheej txheem pre-sintering. Qhov no suav nrog cua sov cov khoom ntawm qhov kub thiab txias hauv qab lawv qhov kawg sintering kub. Lub hom phiaj ntawm pre-sintering yog tshem tawm cov khoom seem uas tsis muaj hluav taws xob thiab ua kom cov qauv ruaj khov ntxiv.
Sintering:Cov khoom ua ntej sintered refractory yog tom qab ntawd raug rau cov txheej txheem kub sintering. Qhov kub thiab ntev ntawm sintering nyob ntawm seb muaj pes tsawg leeg thiab cov khoom xav tau ntawm cov refractories. Feem ntau, qhov kub ntawm 1,200 txog 1,800 degrees Celsius. Thaum lub sij hawm sintering, cov ntaub ntawv refractory tau txais kev sib txuas thiab densification, ua rau muaj zog thiab ruaj khov.
Txias thiab tshuaj xyuas:Tom qab sintering, cov khoom refractory yog txias maj mam kom tsis txhob thermal shock. Thaum txias lawm, lawv yuav raug soj ntsuam xyuas kom paub tseeb tias lawv ua tau raws li cov qauv tsim nyog. Txhua yam khoom tsis raug muab pov tseg.
Q: Dab tsi yog cov khoom siv raw feem ntau siv hauv sintered refractories?
Q: Puas muaj qhov ntsuas kub tshwj xeeb rau sintering refractories?
Q: Yuav ua li cas sintering txhim kho cov khoom ntawm refractories?
Q: sintered refractories tuaj yeem tiv taus qhov kub thiab txias?
Q: Puas yog sintered refractories resistant rau tshuaj tua kab mob?
Q: Puas sintered refractories muaj thermal shock tsis kam?
Q: Yuav ua li cas yog sintered refractories cais raws li muaj pes tsawg leeg?
Q: sintered refractories puas tuaj yeem ua rau cov ntawv thov tshwj xeeb?
Moulding:Cov ntaub ntawv nyoos tuaj yeem raug nias lossis molded rau hauv cov duab tshwj xeeb ua ntej sintering. Qhov no feem ntau yog ua los ntawm hydraulic presses lossis lwm yam khoom siv molding.
Extrusion:Sintered refractories tuaj yeem raug extruded los ntawm kev tuag los tsim cov duab txuas ntxiv xws li cov raj lossis cov pas nrig. Cov txheej txheem no yog tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau kev tsim cov khoom lag luam nrog qhov sib luag ntawm qhov profile.
Casting:Molten los yog slurry cov ntaub ntawv ntawm cov khoom siv refractory tuaj yeem muab pov rau hauv pwm kom ua tiav cov duab zoo nkauj. Txoj kev no muaj txiaj ntsig zoo rau kev tsim cov qauv tsim thiab kho kom haum.
Txiav thiab Machining:Tom qab sintering, cov refractories yuav raug txiav los yog machined kom ua tau raws li qhov xav tau. Qhov no feem ntau ua tiav siv cov cuab yeej xws li saws, xyaum, lossis CNC tshuab.
Q: Puas yog sintered refractories haum rau hauv ob sab phlu?
High Temperature Resistance:Lawv tuaj yeem tiv taus qhov kub thiab txias heev, uas yog qhov tseem ceeb rau cov kab hluav taws xob hluav taws xob uas raug kub hnyiab.
Chemical Stability:Cov ntaub ntawv no muaj zog tiv thaiv cov tshuaj tiv thaiv, tshwj xeeb tshaj yog tawm tsam slags thiab gases pom nyob rau hauv furnaces.
Mechanical Strength:Sintered refractories muaj lub zog zoo txhua yam, ua rau lawv muaj peev xwm tiv taus qhov kev ntxhov siab ntawm lub cev uas tau ntsib hauv kev ua haujlwm hauv qhov cub.
Thermal Shock Resistance:Kev muaj peev xwm tiv taus qhov kub hloov pauv sai yam tsis muaj kev puas tsuaj loj yog qhov tseem ceeb hauv cov cua sov uas tuaj yeem ua rau cua sov thiab cua txias.
Tsawg Porosity:Cov yam ntxwv no txo qis kev nkag mus ntawm cov hlau molten thiab slag, uas tuaj yeem degrade lub refractory hauv ob sab phlu.
Cov hom tshwj xeeb ntawm sintered refractory siv rau lub qhov cub hauv ob sab phlu yog nyob ntawm ntau yam, nrog rau qhov cub ua haujlwm kub, qhov xwm txheej ntawm cov ntaub ntawv ua tiav, thiab hom rauv. Feem ntau sintered refractory cov ntaub ntawv rau cov khoom siv hluav taws xob muaj xws li alumina, silica, magnesite, thiab ntau yam kev sib txuas ntawm cov no thiab lwm cov tebchaw.
Q: Ntev npaum li cas sintered refractories feem ntau kav ntev?
Q: Dab tsi yog qhov yuav tsum tau muaj ntawm txoj cai sintered refractory?
Q: Cov sintered refractories puas tuaj yeem siv dua?
Peb paub zoo tias yog ib qho ntawm cov ua sintered refractories manufacturers thiab lwm tus neeg nyob hauv Suav teb. Thov koj xav tias dawb mus yuav zoo sintered refractories ua nyob rau hauv Suav teb nov los ntawm peb lub hoobkas. Tiv tauj peb kom paub meej ntxiv.