• Chrome corundum

Chrome corundum

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