Zibo Chenyi Advanced Materials Co., Ltd yog lub tuam txhab high-tech nrog rau kev tshawb fawb, tsim khoom thiab kev lag luam. Peb muaj ib pab neeg tshawb fawb zoo thiab paub txog kev tsim, ntau lawm & fabrication pab neeg, kuj tau tsim muaj kev sib raug zoo nrog kev sib raug zoo nrog kev tshawb fawb cov tsev kawm ntawv thiab cov tsev kawm ntawv ntawm cov tsev kawm ntawv thiab cov tsev kawm ntawv. Peb lub tuam txhab yeej ib txwm ua haujlwm ntawm kev tsim kho thev naus laus zis, tsim khoom tsim & tsim khoom, thiab chaw ua haujlwm rau cov khoom siv tiv thaiv thiab cov khoom siv carbon fiber ntau los muab cov neeg siv khoom nrog cov khoom zoo thiab kev daws teeb meem zoo.
Vim Li Cas Xaiv Peb
Peb lub Hoobkas
Peb muaj tag nrho cov txheej txheem ntau lawm, nrog cov cuab yeej tsim khoom thiab cov khoom siv raw hauv tsev thiab txawv teb chaws los muab cov kev daws teeb meem rau txhua tus neeg siv khoom.
Peb Cov Khoom
Roj hmab ceramic liner, polyurethane ceramic liner, ceramic pulley lagging, ceramic lined yeeb nkab, alumina ceramic khoom, silicon carbide khoom, ZTA khoom thiab lwm yam hnav resistant khoom.
Peb Daim Ntawv Pov Thawj
ISO9001, 3 patents, UDEM, TUV.
Kev Lag Luam Ntau Lawm
Australia, America, Lub teb chaws Yelemees, Nyiv, Kazakhstan, Ltalis, Belgium, UK, Denmark thiab lwm yam kev lag luam.
Khoom siv
Coal-conveying system, thee pulverizing system, plua plav tshem tawm, plua plav pov tseg system thiab ntxhia ua cov txheej txheem.
Peb Qhov Kev Pabcuam
Ntau yam khoom zoo hnav-tiv taus yog muaj rau kev xaiv, qauv tsim thiab kev tsim khoom, kev taw qhia kev tsim kho ntawm qhov chaw. Kev pab cuam tom qab muag zoo heev.
Peb yog cov chaw tsim khoom ntawm cov roj hmab ceramic liner / mats / phaj / linings / panels, peb tsim ntau yam roj hmab ceramic liner kom tau raws li cov ntawv sib txawv, kev cai ntau thiab tsawg thiab cov qauv muaj.
Cov pobzeb ceramic no muab cov kev daws teeb meem hnyav rau hauv kev lag luam mining, nrog vibrating feeders, hloov chutes, cyclones, kav dej thiab lwm cov tsoos "high-wear area".
Alumina Ceramics hauv ob sab phlu
Alumina Ceramic Lined lined yeeb nkab yog ib hom tshiab ntawm cov khoom sib xyaw nrog qib siab thoob ntiaj teb uas tau ua tiav kev tsim thiab kev lag luam hauv lub teb chaws "863" high-tech technology plan.
Yeeb Nkab Fabrication thiab Ceramic hauv ob sab phlu ua haujlwm
Alumina Ceramic Lined lined yeeb nkab yog ib hom tshiab ntawm cov khoom sib xyaw nrog qib siab thoob ntiaj teb uas tau ua tiav kev tsim thiab kev lag luam hauv lub teb chaws "863" high-tech technology plan.
Ceramic Lined Y-Pieces yog ib hom tshiab ntawm cov khoom sib xyaw nrog qib siab thoob ntiaj teb uas tau ua tiav kev tsim thiab kev lag luam hauv lub teb chaws "863" high-tech technology plan.
Lub pob zeb hnav-resistant Lined Swivels yog ntsia rau ntawm phab ntsa hauv cov yeeb nkab hauv daim ntawv pasting, stud welding los yog dovetail los tsim cov txheej txheem ruaj khov.
92% Alumina Lined Steel Yeeb Nkab Luj Tshib yog tsim los rau kev pab cuam lub neej ntev nyob rau hauv siab hnav pneumatic ya tshauv, hauv qab tshauv, txaj tshauv thiab zeb tsis kam siv conveying.
Lub SiSIC lined steel yeeb nkab muaj siab hardness thiab zoo hnav tsis kam. Qhov hnav tsis kam ntawm arched alumina ceramic luj tshib yog 7 npaug ntawm stainless hlau thiab 6 npaug ntawm cov hlau cam khwb cia.
Cam khwb cia Basalt muaj kev ua tau zoo ntawm kev tiv thaiv abrasive thiab tiv thaiv corrosion, tuaj yeem siv los ua cov hlua sab hauv rau ntau yam kav dej, chute
Alumina Ceramic Lined lined yeeb nkab yog ib hom tshiab ntawm cov khoom sib xyaw nrog qib siab thoob ntiaj teb uas tau ua tiav kev tsim thiab kev lag luam hauv lub teb chaws "863" high-tech technology plan. Cov khoom yog tsim los ntawm tus kheej-propagating high-temperature synthesis method (SHS), uas siv cov aluminothermic cov tshuaj tiv thaiv rau exothermicly yaj cov reactants, thiab cais Al2O3 thiab Fe nyob rau hauv qhov kev txiav txim ntawm centrifugal quab yuam. Cov raj sib xyaw yog corundum ceramic (AL2O3) txheej los ntawm sab hauv mus rau sab nraud, Hloov txheej txheej thiab cov yeeb nkab steel txheej. Cov txheej txheej corundum ceramic yog ntom ntom corundum ceramic tsim ntawm qhov kub siab tshaj 2000 ºCto tsim ib daim ntawv cog lus ruaj khov nrog cov yeeb nkab steel los ntawm cov txheej txheem hloov.
Qhov zoo ntawm Alumina Ceramics hauv ob sab phlu
Hnav tsis kam:Cov ntsiab lus ntawm alumina nyob rau hauv ceramic linings siab tshaj 92%, nrog ib tug mohs hardness ntawm 9, uas muaj tsis tshua muaj siab hnav tsis kam, thiab hnav tsis kam yog kaum npaug ntau dua li ntawm quenched nruab nrab carbon steel, zoo dua li ntawm tungsten. carbide.
Corrosion kuj:Alumina ceramic yog cov khoom nruab nrab nrog cov tshuaj ruaj khov, zoo heev corrosion kuj thiab acid tsis kam, tsis kam mus rau ntau yam inorganic acids, organic acids, organic solvents, thiab lwm yam, thiab nws cov corrosion kuj yog ntau tshaj kaum npaug ntawm stainless hlau.
Zoo heev kub tsis kam:Alumina ceramics tuaj yeem tiv taus qhov kub siab tshaj 1500 degree, thiab tuaj yeem ua haujlwm hauv qhov xwm txheej ntawm -50 degree -900 degree rau lub sijhawm ntev.
Yooj yim rau weld:Lub alumina ceramic lined tuaj yeem txuas tau los ntawm kev sib txuas ntawm cov yeeb nkab steel sab nraud.
Cov khoom ntawm Alumina Ceramics hauv ob sab phlu
Muaj peev xwm kub siab
Alumina tuav nws cov khoom nyob rau hauv ob qho tib si oxidizing thiab txo cov cua mus txog 1650 degree (2900 degree F) thiab nyob rau hauv lub tshuab nqus tsev ib puag ncig mus txog 2000 degree (3600 degree F). Ntawm 1000 degree, nws khaws 50% ntawm nws lub zog tensile piv rau chav tsev kub. Tsis zoo li cov hlau, uas tsis muaj zog ntawm qhov kub thiab txias, alumina ceramics khaws lawv lub zog thiab nyob twj ywm tsis hloov thaum kub rov qab mus rau qhov qub.
Abrasion Resistant
Kev puas tsuaj tshwm sim thaum cov khoom siv los ntawm kev sib txhuam thiab txhuam. Lub peev xwm ntawm cov khoom siv los tiv thaiv kev puas tsuaj txhais tau hais tias nws tuav nws cov qauv qub txawm tias tom qab ua kom muaj zog siv tshuab. Alumina ceramics pom muaj kev puas tsuaj siab vim lawv qhov hardness.
Tshuaj tiv thaiv
Alumina qhia tau zoo heev tiv thaiv rau ob qho tib si acids thiab alkalis ntawm qhov kub thiab txias vim nws yog tshuaj inert. Qhov tsis muaj cov tshuaj reactivity no ua rau nws tiv taus cov teebmeem ntawm ntau yam tshuaj, nrog rau cov kuab tshuaj thiab cov ntsev ntsev.
Qhov ntom
Qhov ntom yog hais txog cov khoom loj uas muab faib los ntawm nws qhov ntim, feem ntau qhia hauv grams ib cubic centimeter (g / cm³). Hauv cov ntsiab lus no, qhov hnyav yog ntsuas hauv grams thiab ntim hauv cubic centimeters. Qhov ntom ntawm cov khoom yog inversely cuam tshuam rau nws ntim.
Alumina ceramics yog tsim los ntawm cov khoom zoo uas txo qhov muaj cov voids hauv cov khoom. Cov voids tsawg ua rau muaj qhov ntom ntom thiab ntim ntau dua. Piv txwv li, ntawm 77 degree F (25 degree), alumina ceramics muaj qhov ceev ntawm 3.965 g / cm³ ntawm tus qauv atmospheric siab.
Txhawm rau ua kom pom qhov zoo tshaj plaws, cov neeg tsim khoom zom cov hmoov alumina mus rau qib sub-micron (nanometer), ua rau cov nplej loj dua li tsib microns tom qab tua. Ceramic nrog 95% alumina cov ntsiab lus yuav muaj qhov loj ntawm 30 mus rau 40 microns tom qab tua hluav taws, ua rau cov voids loj dua thiab hnav ntau dua. Hloov pauv, ceramic nrog 87% alumina cov ntsiab lus yuav nthuav tawm cov nplej loj ntawm peb mus rau tsib microns tom qab tua hluav taws, ua rau cov voids tsawg dua thiab txhim kho hnav tsis kam.
Neeg kho tshuab
Cov yam ntxwv ntawm cov khoom siv yog txhais los ntawm nws lub peev xwm los tiv thaiv kev ntxhov siab thiab kev nyuaj siab. Alumina tau sau tseg rau nws qhov tshwj xeeb lub zog thiab hardness, uas nce nrog purity ntawm ntau qib.
Kub
Thermal conductivity yog hais txog cov khoom muaj peev xwm hloov cov cua sov. Piv txwv li, cov lauj kaub ua noj xav tau cov thermal conductivity siab los ua noj zaub mov zoo. Thaum cov khoom yog rhuab, nws cov atoms vibrates ntau zog, ua rau lawv cov bonds stretch. Qhov tshwm sim no tau piav qhia los ntawm coefficient ntawm thermal expansion. Vim lawv cov atomic bonds muaj zog, alumina ceramics muaj qhov coefficient tsawg ntawm thermal expansion, txhim kho lawv cov stability nyob rau hauv siab kub.
Alumina ceramics muaj kev tiv thaiv siab, uas txo qis thermal shock. Tsis tas li ntawd, cov ntaub ntawv purity siab dua ntawm alumina muaj kev tiv thaiv ntau dua.
Dielectric
Alumina ceramics muaj qhov tshwj xeeb dielectric zog piv rau cov hlau lossis yas. Dielectric poob yog ib qho kev ntsuas ntawm qhov poob lub zog thaum lub ceramic raug rau electromagnetic voltage. Nrog high conductivity, electrons txav dawb thaum raug electromagnetic voltage. Lub hom phiaj ntawm ib qho insulator yog inhibit qhov ntws ntawm electrons. Alumina ceramics muaj peev xwm tiv taus cov hluav taws xob raug hluav taws xob yam tsis muaj dielectric poob. Qhov no ua rau nws cov khoom siv rwb thaiv tsev zoo meej vim nws qhov sib npaug dielectric. Cov hluav taws xob tam sim no tsis tuaj yeem hla nws.
Hardness
Hardness ntsuas cov khoom muaj peev xwm los tiv thaiv kev hnav thiab puas. Alumina ceramics tshaj hlau thiab tungsten carbide cov cuab yeej hauv hardness. Ntawm Rockwell hardness scale, alumina ceramics ranges los ntawm HRA80-90, muab tso rau hauv qab pob zeb diamond thiab saum stainless hlau.
Yuav Ua Li Cas Xaiv Cov Alumina Ceramics hauv ob sab phlu
Cov khoom siv muaj hnub nyoog vim raug mus ntev rau cov khoom hnyav, tshuaj lom neeg, thiab kub kub. Yog tias koj xav kom ntev lub neej ntawm koj lub tshuab, koj xav tau ib qho hnav-resistant alumina hauv ob sab phlu uas tuaj yeem tiv taus qhov hnyav. Qhov zoo tshaj plaws los ua qhov no yog nrog alumina hauv ob sab phlu ua los ntawm high-purity aluminium oxide.
Cov ntsiab lus ntawm Alumina
Lub liner lub hardness thiab tsis kam hnav yog txiav txim siab los ntawm nws cov ntsiab lus alumina. Lub liner ua nyuaj thiab tiv taus hnav nrog ntau dua alumina concentration. Yog li ntawd, koj yuav tsum ntiav high-alumina liner yog tias koj cov txheej txheem tsim khoom siv cov khoom siv siab. Piv txwv li, ib lub liner ua los ntawm 92% alumina muaj zog tshaj li ib tug ua los ntawm 80% txhuas, ua rau nws tsim nyog rau high-load daim ntaub ntawv.
Qhov ntom
Lwm qhov tseem ceeb hauv kev ua kom ntev liner yog thickness. Lub liner tsim nyog siv rau koj cov khoom siv yuav nyob ntawm seb nws tau txais ntau npaum li cas thiab tsim kua muag. Feem ntau, tougher thiab ntau resilient liners yog cov uas muaj ntau dua thickness. Hloov chaw, cov khoom siv sib dua yog tsim nyog rau cov ntaub nyias nyias.
Loj thiab zoo li
Qhov loj thiab cov duab ntawm lub liner yuav tsum ua raws li qhov loj thiab cov duab ntawm cov tshuab ua haujlwm. Kev siv cov kab sib txuam tuaj yeem tiv thaiv cov khoom siv zoo dua. Yog li ntawd, koj yuav tsum xub txiav txim siab qhov loj ntawm koj cov cuab yeej ua ntej xaiv qhov zoo liner. Yog tias tsis muaj cov ntaub ntawv npaj ua tiav uas haum rau koj cov cuab yeej siv, koj tuaj yeem xaiv cov kab lis kev cai.
Nto tiav
Cov hnav-resistant alumina hauv ob sab phlu kuj yuav cuam tshuam los ntawm nws qhov chaw tiav. Lub tiaj tiaj tiaj zoo tagnrho; txwv tsis pub, lub liner yuav nqus cov abrasives thiab ua kom cov txheej txheem corrosion. Yog li ntawd, koj yuav tsum xaiv ib lub liner nrog ib tug du nto kom yooj yim ntxuav thiab mai.
Txoj kab uas hla loj nrhiav thiab ntsuas
Siv lub vernier caliper los ntsuas tus nqi nruab nrab ntawm cov ces kaum sib txawv. Qhov siab tshaj plaws ntawm qhov sib txawv ntawm qhov sib txawv yog nyob rau hauv ± 3mm, thiab nws tau txiav txim siab los ua cov khoom tsim nyog.
Kev tshuaj xyuas qhov muag
Tsis pom muaj dents, tawg, thiab lwm yam. Tau pom, thiab tag nrho cov tsim nyog.
Kev ntsuas dej nqus dej
Ua cov qauv tshuaj ntsuam xyuas rau txhua pawg ntawm txhua qhov cub. Tom qab ua tiav cov alumina ceramic sib tsoo pob tau qhuav tag, lub pob tau muab tso rau hauv dej npau npau, ua kom sov tsis tu ncua rau ntau tshaj 4 teev, thiab muab tawm los ntsuas nws cov dej nqus. Tshaj qhov ntau yam tau teev tseg los ntawm tus qauv yog suav tias yog pov tseg.
Hnav kom pom txoj kev
Siv 10kg alumina high-alumina pob, muab tso rau hauv ib lub zeb me me, thiab tsis tu ncua zom nrog 8kg dej rau 48 teev. Hnav nyiaj (ib teev)=ntxiv tus nqi ntawm spherulites-tus nqi tom qab sib tsoo × nyiaj ntxiv × lub sijhawm khiav × 100%.
Alumina ceramic sib tsoo pob pom siv spectrophotometry los tshuaj xyuas tag nrho cov ntsiab lus, tshem tawm cov ntsiab lus impurity thiab poob ntawm qhov hluav taws kub, thiab dab tsi tseem yog cov ntsiab lus purity ntawm alumina ceramic sib tsoo pob.
Dab tsi yuav tsum tau them sai sai rau thaum siv Alumina Ceramics hauv ob sab phlu
Alumina ceramic linings yog ib hom khoom siv ceramic siv los txhim kho kev hnav tsis kam ntawm cov khoom siv. Lawv tau ua los ntawm alumina (AL203) ua cov khoom tseem ceeb, ntxiv nrog rau lwm cov khoom xyaw, thiab sintered ntawm qhov kub ntawm 1700 degree. Hnav-resistant ceramics yog dav siv nyob rau hauv cov thee tsheb thauj mus los, cov khoom siv thauj mus los, hmoov ua tshuab, tshauv tshem tawm, plua plav tshem tawm tshuab thiab lwm yam khoom siv tshuab nrog loj hnav hauv thermal zog, steel, smelting, machinery, thee, mining, chemical, cement, chaw nres nkoj terminals thiab lwm yam lag luam.
Thaum xaiv los siv cov khoom siv-resistant ceramic linings, nws yog ib qho tsim nyog yuav tsum xav txog lawv qhov kev siv ib puag ncig thiab kev ua haujlwm, nrog rau qhov loj thiab cov ntsiab lus txhuas ntawm cov khoom siv. Nov yog qee yam uas yuav tsum xav txog:
Siv ib puag ncig
Alumina ceramic linings feem ntau muaj kev tiv thaiv corrosion thiab hnav tsis kam, yog li lawv muaj txiaj ntsig zoo hauv qee qhov chaw hnyav (xws li tshuaj lom neeg, cement, mining, thiab lwm yam). Txawm li cas los xij, yam xws li kub, av noo, thiab cov khoom corrosive hauv ib puag ncig yuav cuam tshuam rau kev ua haujlwm thiab kev pab cuam lub neej ntawm cov ntaub. Yog li ntawd, cov yam ntxwv no yuav tsum tau xav txog thaum xaiv ib lub hauv ob sab phlu.
Cov xwm txheej ua haujlwm
Cov xwm txheej ua haujlwm muaj xws li kev khiav hauj lwm ceev, lub zog, thiab kev cuam tshuam ntawm cov khoom siv. Cov kev ua haujlwm sib txawv yuav tsum tau xaiv cov ntaub ntawv sib txawv hardness thiab lub zog. Piv txwv li, nyob rau hauv ib puag ncig muaj kev cuam tshuam loj, tej zaum koj yuav tau xaiv ib qho nyuaj thiab muaj kev cuam tshuam ntau dua.
Loj
Qhov loj ntawm Alumina ceramic liner feem ntau yog txiav txim siab raws li qhov loj ntawm cov khoom siv. Xaiv qhov loj me kom ntseeg tau tias lub liner tuaj yeem npog tag nrho ntawm cov khoom siv thiab txo qhov hnav los ntawm qhov sib txawv.
Aluminium cov ntsiab lus
Cov ntsiab lus ntawm txhuas yog qhov tseem ceeb ntawm Alumina ceramic liner, uas cuam tshuam rau qhov hardness, hnav tsis kam, thiab thermal stability ntawm liner.Hauv qee qhov kev siv tshwj xeeb, nws yuav tsim nyog xaiv cov liner nrog cov ntsiab lus tshwj xeeb ntawm txhuas. Txawm li cas los xij, kev xaiv ntawm cov ntsiab lus ntawm txhuas kuj cuam tshuam los ntawm cov khoom siv ib puag ncig thiab kev ua haujlwm, thiab yuav tsum tau xaiv raws li cov xwm txheej tiag tiag.
Alumina ceramics tau siv dav hauv ntau qhov kev lag luam vim lawv qhov kub tsis kam, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias. Nrog rau kev txhim kho kev lag luam tas mus li, ntau thiab ntau lub tuam txhab tau pib them sai sai rau daim ntawv thov ntawm alumina ceramics hauv ntau qhov chaw. Ntawm lawv, cov kav dej thauj mus los nrog alumina ceramics tau dav siv.
Cov kav dej thauj mus los yog lined nrog alumina ceramics, uas yog cov khoom siv feem ntau siv rau hauv cov kav dej hauv cov kav dej. Nws muaj kev ua tau zoo heev thiab tuaj yeem tiv taus kev puas tsuaj los ntawm ntau yam tsis zoo ib puag ncig xws li kub, kub siab, corrosion thiab lwm yam. Cov khoom siv no tuaj yeem tiv thaiv cov khoom siv cov kav dej los ntawm ib puag ncig sab nraud thiab txhim kho lawv txoj haujlwm ua haujlwm. Txoj kev zoo tshaj plaws rau kev thauj mus los hauv cov kav dej nrog alumina ceramics yog siv cov txheej txheem txhaj tshuaj molding. Thaum lub sij hawm ua cov txheej txheem, los ntawm kev sib txawv proportions ntawm additives, nws muaj peev xwm muaj ntau yam kev ua tau zoo yam ntxwv. Feem ntau hais lus, alumina ceramics muaj siab hardness thiab zoo hnav tsis kam, uas tso cai rau lawv kom ruaj khov kev ua tau zoo nyob rau hauv high-ceev cov lus tsa suab.
Kev tsim cov txheej txheem ntawm Alumina Ceramics hauv ob sab phlu
Alumina Ceramics hauv ob sab phlu tam sim no tau muab faib ua ob hom: hom high-purity thiab hom zoo tib yam. High purity alumina ceramic series Al2O3
Cov ntaub ntawv ceramic nrog cov ntsiab lus ntau dua 99.9%, vim tias lawv qhov kub thiab txias yog siab li 1650-1990 degree, thiab qhov sib kis wavelength yog 1 mus rau 6 μm, lawv feem ntau ua rau hauv iav molten los hloov platinum crucibles: siv nws. Lub teeb xa tawm thiab alkali hlau corrosion kuj zoo li Sodium teeb raj; tuaj yeem siv los ua ib qho kev sib koom ua ke ntawm cov substrate thiab cov khoom siv hluav taws xob ntau zaus hauv kev lag luam hluav taws xob. Ordinary alumina ceramics tau muab faib ua 99 plooj (porcelain), 95 plooj (porcelain), 90 plooj (porcelain), 85 plooj (porcelain) thiab lwm yam ntau yam raws li cov ntsiab lus Al2O3 sib txawv. Qee zaum cov uas muaj 80% lossis 75% Al2O3 cov ntsiab lus kuj tau muab cais ua cov alumina ceramic series.
Lub alumina hmoov nkag mus rau hauv lub Hoobkas yog npaj rau hauv cov ntaub ntawv hmoov raws li cov khoom sib txawv thiab cov txheej txheem molding sib txawv. Qhov loj me ntawm cov hmoov yog qis dua 1μm. Yog hais tias high-purity alumina ceramic khoom raug tsim, ntxiv rau alumina purity ntawm 99.99%, ultrafine pulverization thiab uniform particle loj faib yuav tsum tau. Thaum siv extrusion molding los yog txhaj tshuaj molding, yuav tsum tau muab ib tug binder thiab ib tug plasticizer rau hauv cov hmoov, feem ntau yog ib tug thermoplastic yas los yog cob nrog ib tug luj ratio ntawm 10-30%. Cov organic binder yuav tsum nyob ntawm 150-200 degree nrog alumina hmoov. Sib tov sib xyaw ntawm qhov kub thiab txias kom yooj yim rau kev ua haujlwm molding. Cov hmoov raw khoom tsim los ntawm cov txheej txheem kub nias tsis tas yuav ntxiv ib daim ntawv khi. Yog tias siv semi-automatic lossis tag nrho tsis siv neeg qhuav nias, muaj cov txheej txheem tshwj xeeb rau cov hmoov, thiab cov hmoov yuav tsum tau ua tiav los ntawm cov tshuaj tsuag granulation kom nws kheej kheej, txhawm rau txhim kho fluidity ntawm cov hmoov thiab pab txhawb kev tsis siv neeg sau. ntawm cov pwm thaum lub sij hawm molding. phab ntsa. Tsis tas li ntawd, txhawm rau txo qhov kev sib txhuam ntawm cov hmoov thiab cov pwm phab ntsa, nws yog ib qho tsim nyog yuav tau ntxiv 1 mus rau 2% ntawm cov roj nplua nyeem, xws li stearic acid thiab binder PVA.
Alumina ceramic khoom molding txoj kev muaj xws li qhuav nias, grouting, extrusion, txias isostatic nias, txhaj tshuaj, casting, kub nias thiab kub isostatic nias. Nyob rau hauv xyoo tas los no, molding tshuab txoj kev xws li lim xovxwm molding, ncaj qha solidification txhaj molding, gel txhaj molding, centrifugal grouting thiab khoom dawb molding tau tsim nyob rau hauv tsev thiab txawv teb chaws. Cov khoom sib txawv, qhov ntau thiab tsawg, cov duab nyuaj thiab cov khoom siv precision yuav tsum muaj cov txheej txheem molding sib txawv.
Cov txheej txheem kev densifying lub granular ceramic lub cev thiab tsim cov khoom siv yog hu ua sintering. Sintering yog ib txoj hauv kev tshem tawm cov voids ntawm cov khoom hauv lub cev ntsuab, tshem tawm me me ntawm cov pa roj thiab impurity organic teeb meem, kom cov khoom tuaj yeem loj hlob thiab sib xyaw ua ke los tsim cov khoom tshiab.
Cov khoom siv cua sov siv rau kev tua hluav taws yog qhov siv hluav taws xob ntau tshaj plaws. Ntxiv rau atmospheric sintering, uas yog lub siab tsis muaj sintering, kuj tseem muaj kub nias sintering thiab kub isostatic nias sintering. Txawm hais tias tsis tu ncua kub nias sintering nce cov zis, cov khoom siv thiab pwm cov nqi siab dhau lawm. Tsis tas li ntawd, vim lub cua sov axial, qhov ntev ntawm cov khoom raug txwv. Kub isostatic nias siv qhov kub thiab txias siab roj raws li lub siab kis nruab nrab, uas muaj qhov zoo ntawm cov cua sov nyob rau hauv tag nrho cov lus qhia, thiab yog heev haum rau sintering khoom nrog complex duab. Vim yog cov qauv tsis sib xws, cov khoom siv tau zoo yog 30-50% siab dua li ntawm cov sintering txias. 10-15% siab tshaj qhov kub nias sintering.
Qee cov ntaub ntawv alumina ceramic tseem xav tau tiav tom qab sintering. Piv txwv li, cov khoom uas tuaj yeem siv los ua cov pob txha pob txha yuav tsum tau ua kom tiav qhov siab, zoo li daim iav saum npoo, txhawm rau kom lubricity. Vim lub siab hardness ntawm alumina ceramic cov ntaub ntawv, nws yog ib qho tsim nyog yuav tsum tau siv zog sib tsoo thiab polishing pobzeb cov ntaub ntawv kom tiav. Xws li SIC, B4C lossis pob zeb diamond thiab lwm yam. Feem ntau siv ntxhib rau nplua abrasives los zom cov kauj ruam los ntawm kauj ruam, thiab thaum kawg ntawm qhov chaw yog polished. Feem ntau, Al203 hmoov los yog pob zeb diamond muab tshuaj txhuam ntawm<1μm micron can be used for grinding and polishing. In addition, laser processing and ultrasonic processing, grinding and polishing methods can also be used.
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