Study of Iron Oxide in Hardener on Properties of Phosphate No-Bake Binder Foundry Sand or Core

You Shou Zhang; Tu Hu; Jin Huang; Lu Xia

doi:10.4028/www.scientific.net/AMR.562-564.498

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 562-564Study of Iron Oxide in Hardener on Properties of...

Study of Iron Oxide in Hardener on Properties of Phosphate No-Bake Binder Foundry Sand or Core

Abstract:

By adding iron oxide to the unitary magnesium oxide, a compound curing agent is made. Studies showed that the tensile strength of phosphate no-baked sand was increased more than 60% by adding the compound curing agent to hardener and the store stability of phosphate no-baked sand was also improved. Changing the percentage of the iron oxide, it showed that the addition quantity of iron oxide and the property of sand wasn't linearity. The highest tensile strength was obtained by 20% content of iron oxide based on total hardener. But a better sand store stability at room temperature and normal humidity air was gained by 30% iron oxide. Putting this no-baked sand under high humidity (more than 90%) condition for 24 hours, the no-baked sand become flexible and the tensile strength is decreased.

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Periodical:

Advanced Materials Research (Volumes 562-564)

Pages:

498-501

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.562-564.498

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Online since:

August 2012

Authors:

You Shou Zhang, Tu Hu, Jin Huang, Lu Xia

Keywords:

Curing Agent, Iron Oxide, Phosphate No-Baked Sand, Sand Store Stability, Tensile Strength

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