Metallurgical compositions containing binding agent/lubricant and process for preparing same
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United States of America Patent
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Aug 5, 2003
Issued Date -
N/A
app pub date -
Jul 20, 2001
filing date -
Oct 21, 1997
priority date (Note) -
Expired
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Abstract
Improved methods for coating particulate materials at low shear conditions and preferably below the melting point of the coating material are provided. In one aspect, metallurgical compositions are provided that contain a metal-based powder bound to an alloying powder or powders by way of a low melting polymer or wax binding agent, which is preferably polyethylene. The binding agent is blended with the metal-based and alloying powders at elevated temperatures preferably below the melting point of the binding agent. The bonded metallurgical composition can be used in compaction processes to manufacture compacted parts that can be sintered to impart strength.
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