Invention Grant
- Patent Title: Methods for preparing metallurgical powder compositions and compacted articles made from the same
- Patent Title (中): 制备冶金粉末组合物和压制制品的方法
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Application No.: US13334622Application Date: 2011-12-22
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Publication No.: US08703046B2Publication Date: 2014-04-22
- Inventor: Francis G. Hanejko
- Applicant: Francis G. Hanejko
- Applicant Address: US NJ Cinnaminson
- Assignee: Hoeganaes Corporation
- Current Assignee: Hoeganaes Corporation
- Current Assignee Address: US NJ Cinnaminson
- Agency: Baker & Hostetler LLP
- Main IPC: B22F1/00
- IPC: B22F1/00

Abstract:
Provided are methods of preparing high density compacted components that increase that lubricity of metallurgical powder compositions while reducing the overall organic content of the compacted component. Method of preparing high density compacted components having a high density include the steps of providing a metallurgical powder composition having particles at least partially coated with a metal phosphate layer, and compacting the metallurgical powder composition in the die at a pressure of at least about 5 tsi. The metallurgical powder composition comprises a base-metal powder, optional alloying powders, and a particulate internal lubricant. The metal phosphate at least partially coats the base-metal powder, the optional alloying powder, or both. The metal phosphate coating increases the lubricity of metallurgical powders without the need for large quantities of organic material, e.g., lubricants and binders.
Public/Granted literature
- US20120219451A1 Methods For Preparing Metallurgical Powder Compositions And Compacted Articles Made From The Same Public/Granted day:2012-08-30
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