Study on anti-clamping performance of quartz feldspar sand
[1]Rokzi.Study on anti-clamping performance of quartz feldspar sand[J].Journal of Zhengzhou University (Engineering Science),1980,1(01):24-44.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
1卷
Number of periods:
1980 01
Page number:
24-44
Column:
Public date:
1980-06-01
- Title:
- Study on anti-clamping performance of quartz feldspar sand
- Keywords:
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- CLC:
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- DOI:
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- Abstract:
- This paper introduces a differential transformer inductance dynamic micrometer with high accuracy, good stability, convenient manufacture and installation as a test method to study linear thermal expansion and thermal deformation of sand under high temperature.A simple device for studying high temperature compressive strength and thermal deformation of molding sand with hydraulic universal strength tester is also introduced.The thermal expansion and deformation characteristics of quartz feldspar sand are studied by the above instruments.Effect of different compactness, different amount of pulverized coal and wood chips on thermal expansion and thermal deformation.By comparing a series of test curves, the favorable conditions of quartz-feldspar sand to reduce the sand trapping tendency of castings are analyzed.It provides a further theoretical basis for the full exploitation and utilization of quartz-feldspar sand in Henan Province.Finally, the production of various types of high-quality cast iron by quartz-feldspar sand in some factories in recent years is introduced.
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Last Update:
2023-07-30