Effect of Mold Flux for Casting on Microstructe of Mould Powder

Abstract:

The microstructe of mold fluxes of low-carbon steel and mould powders were researched by means of polarizing microscope. The result shows that the mineral compositions of the mould fluxes primarily are glass phase, wollastonite, quartz, melilite, pyroxene and feldspar. The main mineral compositions of mould powders is melilite. The quartz, pyroxene and glass phase are helpful to reduce the crystalline portion of mould powder, but the melilite, wollastonite help to improve the crystalline portion and promote crystallization of melilite. It is good for the crystalline portion when the casting speed droop.

• Periodical: Advanced Materials Research (Volumes 194-196)
• Pages: 287-291
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.194-196.287
• Online since: February 2011
• Authors: Li Na Liu, Xiu Li Han, Chang Cun Li, Hui Ping Yang
• Keywords: Crystalline Portion, Microstructure, Mold Flux, Mould Powder

References

[1] Yamauchi A: ISIJ International. Forum Vol. 1-33(1993), pp.140-147.

[2] Billany T J H: Ironmaking and Steelmaking. Forum Vol. 6-18(1991), pp.403-410.

[3] Mills K C: Ironmaking and Steelmaking. Forum Vol. 4-18(1991), pp.253-265.

[4] Kaw amoto M, Nakajima K and Kanazawa T: ISIJ. Forum Vol. 8-38(1998), pp.834-842.

[5] Liu Changjun, Jiang Maofa: Journal of Northfastern University. Forum Vol. 7-23(2002), pp.656-659, (In China).

[6] Shu Jun and Jin Shantong: Steel. Forum Vol. 9-36(2010), pp.21-24, (In China).