1, xim av corundum, Xim av fused alumina, xim av aluminium oxide:
Cov tshuaj lom neeg tseem ceeb, AL2O3, yog tsim los ntawm bauxite, hlau lim thiab anthracite hauv hluav taws xob arc rauv. Cov xim ntawm xim av fused alumina abrasive yog xim av, thiab nyob rau hauv cov nqe lus ntawm nws cov xim, nws yog lub npe xim av fused alumina. Qhov abrasive no muaj qee qhov ua tau tawv thiab tawv, muaj kev sib tsoo muaj zog, thiab tuaj yeem tiv taus ntau yam kev kub ntxhov. Nws muaj cov yam ntxwv ntawm kev kub tiv thaiv, oxidation tsis kam, corrosion tsis kam thiab zoo tshuaj lom neeg. Vim nws lub zog loj tensile, nws yog haum rau kev sib tsoo cov ntaub ntawv nrog siab lub zog tensile. Nws yog tsim rau cov hlau dog dig, cov pa roj carbon siab steel thiab alloy hlau. Nws tuaj yeem siv rau kev tsim cov ntoo tawv. Nws kuj tseem siv tau rau kev hloov ntawm lwm cov abrasives. Abrasive yog qhov feem ntau siv abrasive hauv kev siv.
2, dawb corundum, dawb fused alumina, dawb txhuas oxide:
Cov tshuaj tseem ceeb yog AL3O2, uas yog tsim los ntawm melting txhuas oxide hmoov rau hauv hluav taws xob arc rauv. Cov xim dawb, thiab nws yog lub npe dawb corundum nyob rau hauv cov nqe lus ntawm nws cov xim. Cov qauv ntawm dawb corundum yog purer dua li xim av corundum. Aluminium-oxygen hmoov nyoos cov khoom siv yog npaj los ntawm kev npaj ua ntej cov bauxite siv hauv cov xim av corundum, thiab cov khoom siv lub cev tseem ceeb yog β-AL2O3 (tsis muaj peev xwm sib tsoo), uas tau hloov los ntawm β-AL2O3 rau to-AL2O3 los ntawm hluav taws xob arc rauv yaj nchuav. Qhov hloov dua siab tshiab α-AL2O3 muaj lub zog sib tsoo zoo.
3. Dub silicon carbide:
Cov tshuaj lom neeg tseem ceeb yog SiC. Nws yog cov roj av coke, quartz xuab zeb, ntoo txho thiab qhov zoo li raw khoom hauv hluav taws xob tsis kam rauv taws. Dub SiC muaj xim xim dub thiab yog lub npe dub silicon carbide raws li nws cov xim. Dub silicon carbide yog ntau dua li ntau dua li corundum, tawv tawv dua li tawv, thiab nws cov tawv tawv yog qhov thib ob ntawm corundum. Rau cov ntaub ntawv nrog lub zog tsawg zog, xws li cov khoom siv tsis yog xim hlau (ntau cov paib xws li ntoo plywood, particleboard, high-nruab nrab thiab qhov nruab nrab uas tsis muaj fiberboard). , pawg thawj coj ntawm xyoob, calcium silicate board, tawv, iav, ceramics, pob zeb, thiab lwm yam) thiab cov hlau tsis sib haum (txhuas, tooj liab, txhuas, thiab lwm yam) thiab lwm yam khoom siv yog tshwj xeeb rau kev ua, thiab kev ua cov tawv thiab thim. cov ntaub ntawv kuj yog qhov zoo tagnrho abrasive. Cov.
4. Ntsuab silicon carbide:
Cov tshuaj lom neeg tseem ceeb yog SiC. Cov ntaub ntawv raw khoom siv hauv kev tsim tawm yuav luag zoo ib yam li cov uas ua los ntawm cov kab silicon dub carbide. Kev lag luam ntsev yog cov tshuaj tiv thaiv kev ua kom lub zog thiab cov roj nrawm hauv lub tshuab ua hluav taws xob tsis kam. Nws yog ntsuab nyob rau hauv cov nqe lus ntawm nws cov xim, yog li nws muaj npe ntsuab silicon carbide. Ntsuab silicon carbide yog ntau dua li dawb huv silicon carbide, thiab nws cov hardness yog siab dua li ntawm cov kab mob dub silicon carbide. Nws cov sib tsoo daim ntawv thov yog tib yam li cov uas dub silicon carbide. Nws yog qhov zoo dua rau kev sib tsoo zoo ntawm cov ntaub ntawv xws li kev sib tsoo xov thiab cov cuab yeej sib tsoo. Ntau qhov dav ntawm cov khoom ua haujlwm rau cov cemented carbide thiab pob zeb diamond cov khoom ntawm cov khoom sib tsoo. Txij li thaum tus nqi ntawm kev tsim ua ntsuab silicon carbide yog siab dua li ntawm cov silicon dub carbide, xws li qhov sib piv ntawm cov ntaub ntawv siv, ntxiv cov khoom noj ntsev, thiab qhov sib txawv ntawm kev siv zog thiab kev ua, thiab lwm yam, tus nqi ntawm ntsuab silicon carbide cov khoom lag luam yog siab dua li cov khoom lag luam. Dub silicon carbide siab heev. Yog li, hauv qhov kev sib piv nrog cov dub silicon carbide, kev xaiv ntawm ntsuab silicon carbide feem ntau tsis siv hauv cov khoom siv tsis yog hlau thiab tsis yog, tab sis ntsuab silicon carbide feem ntau yog siv los ua cov tawv tawv thiab kev sib tsoo. Txoj siv qis qis dua thiab lwm cov tsho tiv no abrasives siv tsawg dua ntsuab silicon carbide raws li cov khoom sib tsoo.
5, microcrystalline corundum:
Cov tshuaj lom neeg tseem ceeb yog AL2O3. Cov ntaub ntawv siv raw yog zoo ib yam li cov xim av corundum. Tsuas yog cov txheej txheem nrawm nrawm yog siv cov txheej txheem zom kom tau txais cov txiaj ntsig ntawm kev ua kom zoo crystallization. Cov pob zeb ua kom sib xyaw ua ke yog qhov muaj zog ntau dua li cov ntawv sau ua ke. Abrasives ua los ntawm microcrystalline corundum feem ntau siv rau kev sib tsoo cov ntaub ntawv xws li ntxhib-milled cam khwb cia hlau thiab lub siab-tawv tawv titanium-npib tsib xee hlau alloy, tab sis tsis tshua muaj siv hauv kev tsim cov xim ntawm cov abrasives.
6, Paj yeeb fused alumina, paj yeeb aluminium oxide:
Nws yog qhov sib ntxiv ntawm kev sib xyaw ntawm Cr2O3 hauv cov txheej txheem ntau lawm ntawm corundum dawb, uas ua rau corundum tsim cov txheej txheem sib xyaw ntawm dawb corundum thiab Cr2O3, hloov cov khoom thiab cov qauv ntawm corundum. Lub tawv tawv ntawm chrome corundum yog siab dua li ntawm corundum dawb, thiab nws lub hardness yog txog tib yam li uas ntawm corundum dawb. Tus nqi ntawm Cr2O3 ntxiv me ntsis txawv ntawm qhov tsim ntawm chrome corundum, thiab nws cov xim kuj sib txawv. Hauv chrome corundum, kev siv Cr2O3 nws txawv, thiab nws qhov kev siv yog qhov sib txawv. Yog li ntawd, nyob rau hauv cov abrasive xws li chrome corundum Muab faib ua ob peb qib raws li kev sib txawv ntawm Cr2O3. Chromium corundum-sib tsoo cov ntaub ntawv feem ntau siv rau precision sib tsoo ntawm cov hlau tsis sib luag, hlau alloy thiab rebar hlais thiab ntsuas qhov ntsuas. Chrome corundum feem ntau siv hauv kev tsim cov thooj txaij abrasives thiab tsis tshua muaj siv hauv kev tsim cov nplais abrasives.
7, hollow pob abrasive:
Lub npe hu ua hollow pob abrasive yog hais txog kev sib sau ntawm cov spherical abrasives uas yog tsim los ntawm cov txheej txheem sib xyaw los ntawm kev sib tsoo ntawm qhov tsis muaj ntxhiab nyob rau saum npoo ntawm cov hollow kheej ua los ntawm cov yas 0.05-1 hli, thiab tom qab ntawd hollow pob abrasive npaj tau zoo li qub. Ib txoj kev ntawm thov siv cov nplais abrasive rau saum npoo ntawm ib txheej av.
Hollow pob abrasives feem ntau ua haujlwm thaum ua cov khoom lag luam nplua nplua. Txij li cov abrasive yog qhov zoo heev, yog tias nws tau ncaj qha rau sab saum npoo ntawm cov txheej hauv av, txheej abrasive yog nyias, cov abrasive koom nrog kev sib tsoo tsawg dua, qhov sib tsoo efficiency tsis zoo, thiab cov abrasive yog qhov zoo heev, thiab cov nplaim deg. ntawm kev siv txoj hlua khi sia yog tsawg heev. Nws yooj yim rau kev thaiv. Yog tias siv lub npas hollow pob tawg, qhov saum npoo ntawm txoj siv yuav ua rau lub pob zeb "ntxhib" sib tsoo, thiab cov nplaim deg yuav ua tau zoo heev. Qhov saum npoo ntawm txoj siv yuav pab kom tshem tawm qhov khaum ntawm kev sib tsoo, thiab qhov tseem ceeb tshaj, nplaim ntawm txoj siv yuav koom nrog kev sib tsoo. Tus naj npawb ntawm abrasive nplej yuav nce ntxiv los ntawm ntau zaug lossis kaum tawm zaug. Qhov nce tau txiav txim los ntawm qhov sib piv ntawm tus kheej kheej mus rau particle diam. Qhov loj dua qhov piv, qhov loj dua qhov abrasive nplej, uas zoo heev txhim kho cov kev sib tsoo thiab ua tau ntev. Xws li lub hollow pob abrasive siv tau patented los ntawm lub tuam txhab HERMES lub tuam txhab, uas rau lub tuam txhab hu ua "HERMESIT".
8. Cov duab puab tshiab ua kom zoo nrog microcrystalline qauv:
Nws yog sintered ceramic abrasive ua los ntawm hom gel. Nws cov siv lead ua luaj li ntawm 1-3 microns. Nws yog qhov nyuaj thiab nyuaj. Thaum sib tsoo, lub pob zeb me me kom maj mam poob los qhia cov pob zeb tshiab, uas ua kom lub ntsej muag zoo tag nrho. Lub tuam txhab Asmeskas 3M nyob rau xyoo 1981 Muab tso rau hauv kev ua lag luam hauv lub xyoo, npe hu ua abrasive siv ua los ntawm Cubutron, lub sib tsoo rauj yog 71% siab dua ntawm zirconium corundum txoj siv, thiab qhov ua tau zoo ntawm kev sib tsoo npib tsib xee hlau yog 150% siab dua qhov ntawd. zirconium corundum txoj siv sia. Kev lag luam tseem muaj SG abrasives los ntawm NORTON, Asmeskas. SG abrasive siv yog siv los zom cov hlau ntawm qhov siab ntawm 400 PSI (siv txoj siv ceev yog 28 m / s). Tus nqi ntawm cov hlau yog 5 zaug siab dua li ntawm xim av corundum; txoj hlua khi CB ceramic npe tom qab Hermes ntawm lub teb chaws Yelemees. Cov abrasive siv ua los ntawm hom abrasive no tshwj xeeb tshaj yog tsim rau kev ua cov khoom siv tawv hauv qab lub zog siab, xws li aerospace alloy, high-nickel alloy steel, vanadium-uas muaj cov cuab yeej steel, thiab cobalt-uas muaj cov hlau tsis huv.
Tsis tas li ntawd, tsis ntev los no tsim lub teb chaws tsim kev lag luam tseem tau tsim cov txheej txheem xeb ua los ntawm hluavtaws pob zeb diamond thiab cubic boron nitride (CNB) abrasives, tshwj xeeb hauv kev ua cov hlau nyuaj, cov khoom siv quartz thiab cov hlau tsis yooj yim.
9, zirconium corundum abrasive:
Nws yog lub siab toughness abrasive nrog ZrO2 thiab 20 micron siv lead ua qhov loj me. ZrO2 ntxiv rau 40% thiab 25%. Nws yog siv rau txheej muaj abrasives nrog cov duab ntxoo. Nws yog qhov tshwj xeeb tshaj yog ua rau cov ntu stainless hlau thiab titanium alloy qhov chaw. Hauv Suav lag luam, Nyiv NCA zirconium corundum siv, NORTON txoj hlua NORZON ntawm Asmeskas thiab Kaus Lim Kauslim Kauslim txoj kev sib tsoo lub tuam txhab YZ533 thiab YZ633 zirconium corundum siv ntau dua. Raws li cov ntaub ntawv muab los ntawm NOTON cov tuam txhab ntawm Tebchaws Asmeskas, qhov kev sib tsoo muaj peev txheej yog 254-300% siab dua li ntawm cov xim av xim av. Kev ua cov particleboard nrog NORZON abrasive txoj sia siv ntxiv txoj sia ntawm txoj siv sia los ntawm peb zaug.
Txawm li cas los xij, zirconium corundum txoj siv tsis yog tsuas yog siv txoj siv sia xwb tab sis kuj tseem siv ntau hauv cov kev txhim kho abrasives.
10, puas abrasive:
Nws yog hais txog cov neeg kho tshuab qhov sib txuam nrog kev ua kom zoo nrog lwm abrasive ntau dua li cov tshuaj lom neeg. Thaum cov abrasive yog tsim, ob yam ntawm abrasives yog mechanically ntxiv rau cov khoom siv molding, thiab ntau yam abrasives tseem tuav cov khoom siv hauv lub cev thiab tshuaj. Thaum siv nws, siv nws lub zog thiab ua tiav cov txiaj ntsig zoo. Txhaum ntawm kev sib tsoo, cov npliag hluavtaws ua haujlwm feem ntau siv nyob rau txawv teb chaws lossis hauv Suav teb los tsim cov cuab yeej abrasive rau kev ua haujlwm nyuaj. Qhov no yog qhov thiaj li hu ua lub npe ntse, lwm txoj hauv kev los tsim ib lub lag luam. Cov tshuaj tiv thaiv nquag muaj kev sib xyaw nrog cov xim av fused alumina thiab dawb fused alumina, sib xyaw nrog corundum thiab ntsuab silicon carbide, sib xyaw nrog xim av fused alumina thiab dub silicon carbide.
Comrasite abrasives feem ntau pom muaj nyob rau hauv kev sib txuas abrasives thiab tsis tshua muaj siv nyob rau hauv kev tsim khoom ntawm coated abrasives.
