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Article: A basic green sand control program. (structural sand tests for determining sand composition) (Reducing Casting Defects, Part 2)
- Article from:
- Modern Casting
- Article date:
- May 1, 1994
- Author:
CopyrightCOPYRIGHT 1994 American Foundry Society, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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In the last of this two-part series, structural sand tests that provide information on sand composition are investigated.
The green properties tests that appeared last month in Part 1 of this series quantify the physical/mechanical properties of the sand such as strength characteristics. Structural properties are also commonly used. Structural properties tests provide information on sand composition, such as the amount of clay and the amount of carbonaceous material in the sand. (Moisture could also be considered a structural property because it is the quantity of water in the sand.)
While the green properties tests should be run daily as often as practicable, ...