Process for forming metal parts with less than 1 percent carbon content
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United States of America Patent
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Sep 30, 1980
Grant Date -
N/A
app pub date -
Aug 8, 1978
filing date -
Aug 8, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The disclosed process forms metal parts from a mixture containing a powdered metal, a plasticizer, and at least two binders. Some of these binder materials are selectively extractable from the mixture without sintering. After the mixture is shaped into the form of the desired part and prior to sintering, the plasticizer and the extractable binders are removed. This produces a part having both sufficient green strength and a relatively low binder content. On sintering, remaining binders decompose; and the resulting part has a carbon content of less than 1.0%.
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