Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1995-12-01
1997-11-25
Chilcot, Richard
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
73789, G01D 116, G01D 702
Patent
active
056914814
ABSTRACT:
A method is disclosed for obtaining data on the strain-stress relation of a test piece of molding sand under a varying load to predict the degree of deformation of a green sand mold which is caused after the green sand mold is moved or filled with molten metal. The test piece of molding sand for a green sand mold is produced by compressing the molding sand. The varying load, and varying length of the test piece under the varying load, are measured at short intervals. Based on the measurements, the strain-stress relation of the test piece is calculated and then the data is stored. The stored data is used to predict the degree of deformation of a green sand mold produced from the same molding sand that is tested.
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Chilcot Richard
Noori Max H.
Sintokogio Ltd.
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