Chrome corundum (tseem hu ua liab corundum) yog ua los ntawm qib metallurgical chrome ntsuab thiab muaj alumina ua raw cov ntaub ntawv, thiab chemically reacts ntawm kub siab tshaj 2000 degrees.Ib qho nyiaj ntawm chromium oxide ntxiv thaum lub sij hawm smelting, uas yog lub teeb liab los yog sawv.
Cov kev ua tau zoo ntawm chromium corundum cov khoom muaj cov yam ntxwv ntawm siab hardness, siab toughness, siab purity, zoo heev tus kheej-sharpening, muaj zog sib tsoo muaj peev xwm, tsawg tshav kub tiam, high efficiency, acid thiab alkali tsis kam, kub tsis kam, thiab thermal stability.
Hauv chromium corundum, kev taw qhia ntawm Cr keeb txhim kho lub toughness ntawm abrasive.Lub hardness zoo ib yam li cov dawb corundum, thiab lub toughness yog siab dua li ntawm dawb corundum.Cov cuab yeej abrasive tsim los ntawm nws muaj kev ua haujlwm zoo thiab ua tiav tiav.Siv dav hauv cov khoom siv abrasives, sib tsoo, polishing cov ntaub ntawv, precision casting xuab zeb, txau cov ntaub ntawv, tshuaj catalyst carriers, tshwj xeeb ceramics, thiab lwm yam. Cov teb muaj xws li: precision sib tsoo ntawm cov cuab yeej ntsuas, tshuab cuab yeej spindles, ntsuas qhov chaw, threaded workpieces, thiab qauv sib tsoo. .
Lub chromium corundum muaj viscosity siab thiab zoo permeability tsis kam vim chromium oxide-muaj iav tivthaiv, uas tuaj yeem tiv thaiv kev yaig thiab nkag mus ntawm molten slag.Nws kuj yog dav siv nyob rau hauv qhov kub thiab txias teb nrog hnyav ib puag ncig, nrog rau cov uas tsis yog-ferrous metallurgy furnaces, iav melting furnaces, carbon dub reactors, khib nyiab incinerators, refractory castables thiab lwm yam kub kuj thiab corrosion tiv thaiv.
Chromium corundum khoom
Lub cev thiab tshuaj ntsuas ntsuas
| Cov ntsiab lus ntawm chromium oxide | Tsawg chrome 0.2-0.45 Nws | Cov chromium 0.45—1.0 Nws | Siab chromium 1.0-2.0 Nws |
Granularity ntau yam
| AL2O3 | Na2O | Fe2O 3 | |
| F12-F80 | 98.20mn ib | 0.50 max | 0.08 max |
| F90-F150 | 9 8.50mn | 0.55 max | 0.08 max |
| F180-F220 | 98.00 Nws | 0.60 max | 0.08 max |
Muaj tseeb ceev: 3.90g / cm3 Qhov ceev: 1.40-1.91g / cm3
Microhardness: 2200-2300g / mm2
Chrome Corundum Macro
| PEB | Qhov nruab nrab grain loj (μm) |
| f020 ua | 850-1180 : kuv |
| f022 ua | 710-1000 Nws |
| f024 ua | 600-850 Nws |
| f030 ua | 500-710 Ib |
| f036 ua | 425-600 Nws |
| f040 ua | 355-500 : kuv |
| f046 ua | 300-425 : kuv |
| f054 ua | 250-355 : kuv |
| f060 ua | 212-300 : kuv |
| f070 ua | 180-250 Nws |
| f080 ua | 150-212 : kuv |
| f090 ua | 125-180 : kuv |
| F 100 | 106-150 : kuv |
| F 120 | 90-125 : kuv |
| F 150 | 63-106 : kuv |
| F 180 | 53-90 : kuv |
| F 220 | 45–75 : kuv |
| F240 | 28–34 : kuv |
Kev tshuaj xyuas lub cev zoo
| Al2O3 | 99.50% |
| Cr2O 3 | 0.15% |
| Na2O | 0.15% |
| Fe2O 3 | 0.05% |
| CaO | 0.05% |
Cov yam ntxwv ntawm lub cev
| Hardness | 9, 0 hmu |
| Color | liab |
| Cov qoob loo | lub kaum sab xis |
| Melting point | ca.2250 ° C |
| Qhov siab tshaj qhov kev pabcuam kub | ca.1900 ° C |
| Lub ntiajteb txawj nqus tshwj xeeb | ca.3.9-4.1g / cm3 |
| Qhov ntom ntom | ca.1.3-2.0g / cm3 |