Method for making compacted products and iron-based powder comprising lubricant
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United States of America Patent
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Jul 20, 2010
Grant Date -
Aug 30, 2007
app pub date -
Apr 20, 2005
filing date -
Apr 21, 2004
priority date (Note) -
Expired
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Abstract
The invention concerns a method for producing products and coarse iron-based powder comprising a lubricant having a crystalline melting point below 25° C., a viscosity (η) at 40° C. above 15 mPas and wherein said viscosity is temperature dependent according to the following formula: 10 log η=k/T+C wherein the slope k is preferably above 800, T is temperature in Kelvin and C is a constant, in an amount between 0.05 and 0.4%.
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