• Chrome corundum

Chrome corundum

Chrome corundum (tseem hu ua liab corundum) yog tsim los ntawm cov tshuaj tiv thaiv ntawm metallurgical chrome-ntsuab thiab muaj alumina ntawm qhov 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.

Chromium corundum excels nyob rau hauv kev ua tau zoo nrog rau 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.

Qhov sib ntxiv ntawm cov khoom siv tshuaj Cr hauv chrome corundum txhim kho qhov toughness ntawm nws cov cuab yeej abrasive.Nws zoo ib yam li dawb corundum hauv hardness tab sis siab dua hauv toughness.Cov cuab yeej abrasive ua los ntawm chrome corundum muaj qhov ua haujlwm zoo thiab ua tiav siab.Nws yog dav siv nyob rau hauv abrading, sib tsoo, polishing, precisely casting xuab zeb, txau cov ntaub ntawv, tshuaj catalyst cab kuj, tshwj xeeb ceramics thiab hais txog.Cov teb uas siv tau muaj xws li: ntsuas cov cuab yeej, cov cuab yeej siv tshuab spindles, ntsuas qhov chaw, kev sib tsoo meej hauv threaded ntau lawm thiab qauv.

chrome corundum muaj viscosity siab thiab zoo permeability vim yog chromium oxide-muaj iav tivthaiv, uas tuaj yeem tiv thaiv kev yaig thiab nkag mus ntawm molten slag.Nws kuj tau 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 thiab refractory castables.

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 98.20 mn 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 / hli

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 ib
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

Tej yam kev soj ntsuam lub cev

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
Kev pabcuam kub siab tshaj plaws ca.1900 ° C
Lub ntiajteb txawj nqus tshwj xeeb ca.3.9-4.1g / cm3
Qhov ntom ntom ca.1.3-2.0g / cm3