Dawb corundum, xim av corundum, chrome corundum, zirconium corundum, thiab ceramic corundum yog txhua yam siv abrasives hauv kev lag luam sib tsoo. Hauv qab no peb yuav sib piv cov yam ntxwv ntawm ntau yam abrasives hauv ob qho kev sib tsoo sandblasting thiab abrasive cuab yeej tsim khoom:
1. Sandblasting kev lag luam
Dawb corundum abrasive. Nws yog ib qho abrasive uas melts aluminium oxide hmoov rau hauv cov kua thiab ces txias thiab condenses. Qhov siab dua Al2O3 cov ntsiab lus (Al2O3 cov ntsiab lus ntawm corundum dawb yog 99), lub zog hardness thiab txiav thiab sib tsoo muaj zog dua. Txij li thaum loj ntau lawm pib nyob rau hauv thaum ntxov 20th caug xyoo, dawb corundum abrasives tau siv nyob rau hauv feem ntau sib tsoo ua hauj lwm. Dawb corundum abrasives tuaj yeem siv rau kev sib tsoo zoo ntawm aluminium alloys, stainless hlau, thiab hlau, deg tu ntawm carbon steel, chrome alloys, molybdenum alloys, cemented carbides thiab lwm yam hlau, thiab tseem tuaj yeem siv rau saum npoo passivation ntawm cov ntaub ntawv tsis yog xim hlau. xws li acrylic, yas, khoom xyoob, khoom ntoo, thiab iav.
Xim av corundum abrasive. Brown corundum abrasive muaj ib tug me ntsis qis feem ntawm txhuas oxide tshaj dawb corundum. Lub purity ntawm thawj qib yog 93-96%, thiab nws kuj yog ib qho khoom abrasive ua los ntawm txoj kev melting. Txawm li cas los xij, cov khoom siv raw ntawm xim av corundum yog bauxite, tsis yog qhov siab dua purity aluminium oxide. Tsis tas li ntawd, cov khoom smelting ntawm xim av corundum feem ntau yog muab faib ua ntau qib, uas yog tshwm sim los ntawm qhov sib txawv ntawm cov khoom siv lead ua hauv ntau qhov sib txawv ntawm cov txheej txheem smelting. Yog li ntawd, qhov zoo ntawm xim av corundum sib txawv heev. Lub toughness ntawm thawj-qib xim av corundum yog siab dua li ntawm dawb corundum, uas ua rau xim av corundum abrasive abrasive ib tug yooj yim high-hardness abrasive rau txawv scenarios. Rau cov xuab zeb loj loj ntawm cov hlau, carbon hlau, iav thiab lwm yam ntaub ntawv, xim av corundum yog qhov kev xaiv zoo.
Garnet abrasive muaj. Garnet xuab zeb abrasive muaj ib tug nruab nrab hardness ntawm 7.5-8 {2}}. Nws yog ntuj ntxhia xuab zeb. Lub hardness ntawm high-purity garnet kuj yog mus txog Mohs 8.5. Nws yog kev lag luam rau sandblasting ntawm cov kav dej, cov khoom siv hlau loj, nkoj tu sandblasting, thiab kev npaj nto ua ntej anodizing. Qee cov garnets muaj cov khoom siv xws li omphacite, uas yuav cuam tshuam rau purity ntawm garnet thiab yog li kev ua haujlwm ntawm sandblasting.
Dub silicon carbide abrasive. Nws yog ib qho abrasive nrog hardness siab dua corundum abrasives. Cov txheej txheem smelting ntawm dub silicon carbide abrasive yog sib tov quartz xuab zeb thiab anthracite (los yog roj av coke) thiab muab tso rau hauv lub cub tawg loj rau cov tshuaj tiv thaiv. Lub hardness ntawm thawj qib dub silicon carbide yog siab heev, ncav Mohs 9.2, thiab SiC cov ntsiab lus tuaj yeem ncav cuag 98%. Nyob rau tib lub sij hawm, nws yog nkig heev, thiab cov hais yog tas li tawg thaum lub sij hawm sib tsoo txheej txheem los tsim tshiab txiav npoo. Yog li ntawd, kev sib tsoo muaj peev xwm siab dua li ntawm corundum abrasives. Nws yog tsim rau kev tu thiab sandblasting ntawm ceramics, marble, thiab granite, thiab tseem tuaj yeem siv rau kev sib tsoo zoo ntawm iav, aluminium alloys, khoom tooj liab, thiab jade.
Ntsuab silicon carbide abrasive. Cov txheej txheem ntau lawm ntawm ntsuab silicon carbide abrasive zoo ib yam li cov dub silicon carbide, tab sis ntsuab silicon carbide feem ntau tsis siv anthracite, tab sis siv roj av coke ua raw khoom, thiab ntxiv ntsev. Lub purity ntawm ntsuab silicon carbide yog siab dua li ntawm dub silicon carbide, thiab cov ntsiab lus SiC yog siab tshaj 98.5. Nws Mohs hardness yog 9.4-9.5, uas ua rau ntsuab silicon carbide abrasive thib ob tsuas yog pob zeb diamond. Rau magnesium alloys, titanium alloys, thiab tungsten carbide alloys nrog siab hardness, ntsuab silicon carbide tuaj yeem txiav sai sai thiab pom kev siab. Tsis tas li ntawd, rau cov khoom siv tshwj xeeb uas tsis yog xim hlau, xws li calcium silicate iav, quartz iav, borosilicate iav, iav kho qhov muag, hniav nyiaj hniav kub thiab jade, nws kuj qhia tau hais tias kev sib tsoo zoo heev.
2. Kev lag luam Abrasive
Dawb corundum abrasive. Abrasive code yog WA. Nws tus kheej-sharpening cuab yeej yog qhov siab ntawm cov tsoos abrasives. Nws yog tsim rau kev tsim ntau yam khoom abrasive rau kev txiav, sib tsoo sib tsoo, zoo sib tsoo, ntxhib polishing thiab zoo polishing. Dawb corundum muaj nyob rau hauv ntau yam khoom abrasive xws li ceramic sib tsoo lub log, sib tsoo taub hau, cob txiav discs, sib tsoo discs, coated abrasives, oilstones thiab lwm yam khoom. Cov abrasives no feem ntau yog tsom rau cov khoom siv hlau zoo tib yam. Dawb corundum tso nyiaj rau feem ntau hauv kev ua lag luam abrasive. Ntau lub tuam txhab tau koom nrog nws ntau xyoo, uas yog kev pabcuam zoo los txhim kho qhov zoo ntawm corundum dawb. Dawb corundum abrasives tsis yog tsuas yog muaj ntau yam ntawm qhov ntau thiab tsawg, tab sis kuj tseem txhim kho nyob rau hauv cov kev taw qhia ntawm cov sodium tsawg thiab siab bulk ntom. Tsis tas li ntawd, iridium-plated dawb corundum tsim nyob rau hauv lub hauv paus ntawm dawb corundum muaj siab toughness thiab hydrophilicity tshaj li dawb corundum, thiab yuav siv tau raws li ib qho kev xaiv los txhim kho qhov zoo ntawm abrasives.
Xim av corundum abrasive. Abrasive code yog A. Nws lub zog yog siab dua li ntawm cov dawb corundum, tab sis nws tus kheej-ntsia cov cuab yeej tsis zoo li cov dawb corundum. Cov khoom siv yooj yim thiab siab tawv ntawm cov xim av corundum ua rau nws tsim nyog rau kev sib tsoo cov nplooj ntawv, sib tsoo cov log sib tsoo, polishing coated abrasives, thiab lwm yam. Tsis tas li ntawd, xim av corundum kuj muaj kev cia siab dav rau kev ua cov khoom siv high-end abrasive nrog zirconium corundum. Thib peb, calcining xim av corundum ntawm qhov kub thiab txias tuaj yeem txhim kho hydrophilicity thiab lub zog ntawm cov xim av corundum, txo cov thermal expansion coefficient ntawm xim av corundum, thiab txhim kho cov kev pab cuam lub neej thiab kev ua tau zoo ntawm cov khoom abrasive.
Dub silicon carbide abrasive. Abrasive code yog C. Dub silicon carbide muaj cov yam ntxwv ntawm hardness siab dua corundum. Nws yog tsuas yog siv los tsim cov abrasives rau kev sib tsoo marble, pob zeb, thiab cement. Nws tseem tuaj yeem siv los tsim cov ntawv xuab zeb dej, tshem tawm cov xim pleev xim, thiab tshem tawm cov ntsiab lus vuam. Ntxuav lub log. Dub silicon carbide feem ntau yog siv rau coated abrasives. Cov dub silicon carbide P xuab zeb series yog siv rau kev sib tsoo ntawm cov hlau, ntoo, thiab cov khoom xyoob.
Ntsuab silicon carbide abrasive. Tus lej abrasive yog GC. Nws muaj qhov nyuaj dua li cov xim dub silicon carbide thiab ua haujlwm zoo dua hauv kev sib tsoo. Nws yog tsuas yog siv rau hauv cov cuab yeej abrasive rau granite, ceramics, iav, thiab pobzeb tiav. Nws kuj yog tsim rau zus tau tej cov kev sib tsoo log, bearing steel oilstones, zoo sib tsoo oilstones, PVC sib tsoo log thiab lwm yam khoom. Tsis tas li ntawd, txij li ntsuab silicon carbide yog ib qho nyuaj abrasive hauv cov cuab yeej uas tsis yog superhard abrasive, nws feem ntau ntxiv rau pob zeb diamond abrasive cov cuab yeej los txo cov nqi thiab sau.
Chrome corundum abrasive siv. Lub abrasive code yog PA. Chrome corundum kuj yog molten aluminium oxide abrasive. Thaum 0.5-2% chromium oxide ntxiv thaum nws cov txheej txheem smelting, cov qauv siv lead ua ntawm aluminium oxide yuav hloov, uas qhia tau hais tias zoo dua txhua yam lub zog, toughness thiab lub ntiajteb txawj nqus tshwj xeeb tshaj li dawb corundum. Chrome corundum yog tsim rau zus tau tej cov ceramic sib tsoo lub log, resin sib tsoo lub log thiab lwm yam khoom siv abrasive sib sau ua ke, thiab tsis tshua muaj siv hauv cov cuab yeej coated abrasive. Cov khoom siv tsom kuj tseem yog cov khoom siv hlau. Cov qauv siv lead ua tshwj xeeb ntawm chrome corundum tuaj yeem tshem tawm cov cua sov thaum lub sij hawm sib tsoo, txo qhov thaiv ntawm cov hlau nto, thiab txhim kho qhov ntse ntawm lub log sib tsoo.
Ib leeg siv lead ua corundum. Abrasive code yog SA. Lub smelting ntawm ib leeg siv lead ua corundum yog txheej txheem ntawm fusion ntawm dawb corundum thiab alloy khoom. Cov khoom tom qab smelting yog ywj siab crystals. Kev faib tawm ntawm qhov sib txawv particle loj tsis tau mechanically crushed. Yog li ntawd, lub toughness thiab lub zog ntawm cov abrasive hais yog zoo dua li cov dawb corundum thiab chrome corundum, thiab lawv muaj peev xwm yuav sib raug zoo nrog cov binder. Ib leeg siv lead ua corundum feem ntau yog siv los tsim cov pob zeb sib tsoo thiab txiav cov log sib tsoo. Rau kev sib tsoo ntawm cov kabmob steel, titanium alloy, vanadium alloy, austenitic stainless hlau, thiab cov ntawv tiv thaiv ntiv tes, kev ua haujlwm thiab kev pabcuam lub neej ntawm cov cuab yeej sib tsoo tau zoo heev.
Zirconium corundum. Tus lej abrasive yog ZA. Zirconium corundum yog qhov feem ntau abrasive (kuj superhard abrasive) nrog qhov zoo tshaj plaws hnav tsis kam kom deb li deb. Nws yog ua los ntawm cov khoom siv zirconium thiab alumina tom qab kub kub smelting thiab ces txias sai. Kev siv cov zirconium corundum yog los tsim cov log sib tsoo hnyav. Lub particle crushing mechanism ntawm zirconium corundum kuj yog tsim ib tug tshiab txiav ntug nto los ntawm shedding ntawm sib tsoo abrasives. Txhua qhov tawg ntawm cov khoom yog qhov tawg ntawm zirconium corundum crystals. Cov siv lead ua loj ntawm zirconium corundum yog ib tug nees nkaum ntawm cov dawb corundum, nws lub zog yog kaum ob lub sij hawm ntawm xim av corundum, thiab nws lub zog compressive thiab bulk ntom yog ntau dua li cov corundum zoo tib yam. Zirconium corundum abrasives tuaj yeem siv rau hauv qhov chaw tsis muaj qhov sib tsoo lub log, lub log hnyav sib tsoo, cov khoom siv sib tsoo sib tsoo, kev tsheb ciav hlau sib tsoo lub log thiab lwm yam sib xyaw abrasives thiab polishing discs, hloov tau nylon sib tsoo lub log thiab lwm yam coated abrasives hauv tshuab cuab yeej ua, thiab lawv. kev ua tau zoo tau txais txiaj ntsig zoo. Zirconium corundum yog qhov tsim nyog rau kev sib tsoo nrog lub tshuab loj, xws li lub zog txiav tshuab, hnyav-load grinders, thiab cov cuab yeej ntse sib tsoo.
Ceramic corundum abrasive (SG abrasive). Abrasive code yog SG. Cov txheej txheem ntau lawm ntawm ceramic corundum yog qhov nyuaj, thiab nws tseem cuam tshuam cov txheej txheem abrasive smelting. Nws siv cov txheej txheem ntawm cov khoom siv tshuaj yaj yeeb yaj kiab ua ntej, ntxiv cov khoom ntxiv los ua jelly, thiab txias thiab calcining. Kev sib tsoo mechanism ntawm ceramic corundum yog nano-theem crushing thiab shedding ntawm hais. Nws tuaj yeem xav txog yuav ua li cas hloov pauv qhov no rau kev txhim kho ntawm abrasive tus kheej-sharpening thiab lub neej. Tsis tas li ntawd xwb, cov tuam txhab ceramic corundum kuj tau tsim ntau yam tshiab hauv cov duab ntawm cov khoom. Daim duab peb sab flake hais, daim duab peb sab pyramid hais, thiab columnar hais yog txhua yam tshiab ntawm ceramic corundum. Txij li thaum SG abrasives tau tsim los ntawm 3M, thoob ntiaj teb SG abrasive tuam txhab xws li Saint-Gobain thiab German Horse Circle tau tsim lawv tus kheej cov khoom siv ceramic corundum, tab sis lawv cov kev ua tau zoo tsis zoo li 3M Cubitron series. Ceramic corundum tuaj yeem siv rau kev sib tsoo ntawm cov hlau tshwj xeeb xws li aviation nplooj sib tsoo, high-hardness bearing steel, nickel-chromium alloy, thiab titanium alloy. Kev nce qib ntawm ceramic corundum muab qhov ua tau ntawm kev txhim kho kev sib tsoo, txuag kev ua haujlwm thiab cov nqi polishing tom ntej. Kev ua hauj lwm zoo ntawm ceramic sib tsoo log, coated sib tsoo log, thiab cob sib tsoo lub log ua los ntawm nws tau nce los ntawm qhov kev txiav txim ntawm qhov loj, tsim cov xwm txheej rau cov neeg hlau sib tsoo thiab txiav.
