Occurrence and Control of Crack on Counterweight of Forklift Cast with High Manganese Pig Iron

Abstract:

Cracks easily generate in counterweight of forklift cast with high manganese pig iron which is by-product of smelters or low-grade manganese pig iron of Guangxi province of China. The causes of cracks formation and the solutions of cracks elimination are discussed. A large amount of carbides, phosphorus eutectic, inclusions, and arsenic element distribute on grain boundary of counterweight that causes crack. The measures to solve the cracks are as following: casting process would be improved, carbides and inclusions would be refined by adding rare earth, and arsenic would be eliminated by adding dearsenic catalyst which is composed of Ca-Fe alloy and the strong reducibility based additives. The distribution of phosphorus would be improved and phosphorus eutectic would be eliminated by adding 0.08%~0.15 %( wt %) Al or 1%~2 %( wt %) Mo.

• Periodical: Advanced Materials Research (Volume 1078)
• Pages: 12-19
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1078.12
• Online since: December 2014
• Authors: An Min Li, Qi Feng Zheng, Zheng Yong Yu, Ruo Huai Chen, Yu Wei Huang
• Keywords: Counterweight, Crack, High Manganese Pig Iron, Microstructure

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