Taw qhia, daim ntawv thov thiab cov txheej txheem tsim khoom ntawm corundum dawb
Dawb Fused Alumina (WFA)yog ib qho khoom siv abrasive ua los ntawm kev lag luam alumina hmoov ua cov khoom siv tseem ceeb, uas yog txias thiab crystallized tom qab high-temperature arc melting. Nws lub ntsiab tivthaiv yog aluminium oxide (Al₂O₃), nrog rau purity ntau tshaj 99%. Nws yog xim dawb, tawv, ntom, thiab muaj qhov zoo ntawm qhov kub thiab txias, tiv thaiv corrosion thiab rwb thaiv tsev. Nws yog ib qho ntawm cov khoom siv dav siv tshaj plaws abrasives.
1. Khoom Taw Qhia
Dawb corundum yog ib hom khoom cuav corundum. Piv nrog rau xim av corundum, nws muaj qis impurity cov ntsiab lus, hardness ntau dua, xim dawb, tsis muaj silica dawb, thiab tsis muaj teeb meem rau tib neeg lub cev. Nws yog qhov tshwj xeeb tshaj yog tsim rau cov txheej txheem txheej txheem nrog kev xav tau siab rau abrasive purity, xim thiab kev sib tsoo. Dawb corundum muaj Mohs hardness txog 9.0, thib ob tsuas yog pob zeb diamond thiab silicon carbide. Nws muaj cov yam ntxwv zoo ntawm tus kheej, tsis yooj yim rau kev ua raws li qhov chaw ua haujlwm thaum sib tsoo, thiab muaj cua sov sai sai. Nws yog tsim rau ob qho tib si qhuav thiab ntub ua cov txheej txheem.
2. Cov ntawv thov tseem ceeb
Vim nws qhov tshwj xeeb ntawm lub cev thiab tshuaj lom neeg, corundum dawb yog siv dav hauv ntau qhov chaw siab, suav nrog tab sis tsis txwv rau cov hauv qab no:
Abrasives thiab cov cuab yeej sib tsoo
Nws yog siv los tsim cov khoom sib tsoo ceramic, cob sib tsoo lub log, emery daim ntaub, ntawv xuab zeb, scouring pads, sib tsoo pastes, thiab lwm yam.
Sandblasting thiab polishing
Nws yog tsim rau hlau nto tu, xeb tshem tawm, deg ntxiv dag zog thiab kho matte. Vim nws cov hardness siab thiab tsis muaj tshuaj lom thiab tsis muaj teeb meem, nws feem ntau siv rau sandblasting thiab polishing ntawm precision pwm thiab stainless hlau khoom.
Cov khoom siv refractory
Nws tuaj yeem siv los ua aggregate los yog hmoov zoo ntawm cov qib siab refractory cib, castables, thiab cov ntaub ntawv casting. Nws yog dav siv nyob rau hauv high-temperature ib puag ncig xws li steel, non-ferrous hlau smelting kiln linings, iav kilns, thiab lwm yam.
Electronic / optical kev lag luam
Nws yog siv los tsim high-purity ceramics, kho qhov muag iav sib tsoo, LED sapphire substrate polishing, semiconductor silicon wafer tu thiab sib tsoo, thiab lwm yam, thiab high-purity ultrafine dawb corundum hmoov yuav tsum tau.
Functional muab tub lim
Siv rau hauv roj hmab, yas, txheej, ceramic glaze thiab lwm yam lag luam los txhim kho kev hnav tsis kam, thermal stability thiab rwb thaiv tsev kev ua tau zoo ntawm cov ntaub ntawv.
3. Cov txheej txheem ntau lawm
Cov txheej txheem ntau lawm ntawm corundum dawb yog nruj thiab kev tshawb fawb, feem ntau suav nrog cov kauj ruam tseem ceeb hauv qab no:
Raw khoom npaj
Xaiv high-purity industrial alumina hmoov (Al₂O₃≥99%), tshuaj ntsuam thiab tshuaj ntsuam xyuas cov ntaub ntawv raw los xyuas kom meej tias cov ntsiab lus impurity tsis tshua muaj tsawg thiab cov particle loj yog uniform.
Arc melting
Muab cov hmoov alumina tso rau hauv peb-theem arc rauv thiab yaj nws ntawm qhov kub ntawm li 2000 ℃. Thaum lub sij hawm smelting txheej txheem, cov electrodes yog rhuab kom yaj tag nrho cov alumina thiab tshem tawm impurities los tsim ib tug ntshiab corundum yaj.
Ua kom txias crystallization
Tom qab cov yaj yog txias, nws ib txwm crystallizes los ua blocky dawb corundum crystals. Kev ua kom txias qeeb pab txoj kev loj hlob ntawm cov nplej thiab kev ua haujlwm ruaj khov, uas yog qhov txuas tseem ceeb los xyuas kom meej qhov zoo ntawm corundum dawb.
Crushing thiab sib nqus sib cais
Lub corundum crystals txias yog crushed thiab finely crushed los ntawm txhua yam khoom, thiab ces impurities xws li hlau raug tshem tawm los ntawm muaj zog sib nqus sib cais los xyuas kom meej lub purity ntawm cov khoom tiav.
Crushing thiab tshuaj ntsuam
Siv cov pob zeb, cov tshuab cua ntws thiab lwm yam khoom siv los tsoo cov corundum dawb mus rau qhov loj me me, thiab tom qab ntawd siv cov cuab yeej tshuaj ntsuam xyuas siab kom muab cov khoom me me raws li cov qauv thoob ntiaj teb (xws li FEPA, JIS) kom tau cov xuab zeb lossis micro hmoov ntawm cov khoom sib txawv.
Fine grading thiab tu (nyob ntawm lub hom phiaj)
Rau qee qhov kev siv high-end, xws li qib hluav taws xob thiab qib kho qhov muag dawb corundum hmoov, huab cua txaus faib, pickling thiab ntxuav ultrasonic yog nqa tawm los txhim kho qhov purity thiab particle loj tswj qhov tseeb.
Kev soj ntsuam zoo thiab ntim khoom
Cov khoom tiav yuav tsum tau ua raws li cov txheej txheem tswj xyuas zoo xws li tshuaj ntsuam xyuas (Al₂O₃, Fe₂O₃, Na₂O, thiab lwm yam), kuaj pom qhov loj me, kuaj pom dawb, thiab lwm yam, thiab tom qab dhau qhov kev xeem, nws tau ntim raws li cov neeg siv khoom xav tau, feem ntau hauv 25kg hnab lossis ton hnab.
Raws li cov khoom lag luam nrog kev ua tau zoo, corundum dawb plays lub luag haujlwm tsis tuaj yeem hloov pauv hauv ntau qhov kev lag luam. Nws tsis yog tsuas yog tus neeg sawv cev tseem ceeb ntawm high-end abrasives, tab sis kuj yog ib qho tseem ceeb ntawm cov khoom siv hauv high-tech xws li precision machining, functional ceramics, thiab electronics. Nrog rau kev txhim kho tas mus li ntawm kev lag luam thev naus laus zis, kev ua lag luam cov kev xav tau zoo rau corundum dawb kuj tseem txhim kho tsis tu ncua, uas tseem ua rau cov tuam txhab ua kom zoo dua qub, txhim kho cov khoom lag luam, thiab txhim kho cov kev coj ua siab dua purity, finer particle loj, thiab ruaj khov zoo dua.