MIXTURE AND MANUFACTURE OF IRON BASE POWDER FOR POWDER METALLURGY

PURPOSE:To prevent segregation and dust and to manufacture mixture for powder metallurgy having fluidity by mixing excellent power for alloy and metal soap or powder of wax with iron powder and further, heat-treating while mixing by adding oil. CONSTITUTION:The powder for alloy and metal soap or wax...

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Bibliographic Details
Main Authors SAKURADA KAZUO, TAKAGI SHIGEAKI, OKABE RITSUO
Format Patent
LanguageEnglish
Published 29.06.1989
Subjects
ALLOYS
CASTING
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WORKING METALLIC POWDER
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Summary:PURPOSE:To prevent segregation and dust and to manufacture mixture for powder metallurgy having fluidity by mixing excellent power for alloy and metal soap or powder of wax with iron powder and further, heat-treating while mixing by adding oil. CONSTITUTION:The powder for alloy and metal soap or wax powder are mixed with the iron base powder and while mixing with this by adding the oil, it is heated to 91-150 deg.C to generate consolute binder of the oil and the metal soap or the wax powder. After that, it is cooled to <=85 deg.C, and the powder for alloy is stuck on the surface of the iron base powder granule by the consolute binder. The ratio of one or more kinds of the alloy element quantity in a fraction of 100-200 mesh in the mixing material of this iron base powder and the powder for alloy and the alloy element quantity in the whole mixing material is made to >=65%. As the iron base powdery mixture for powder metallurgy eliminates the segregation of the powder for alloy and has excellent fluidity, the forming speed can be quickened.
Bibliography:Application Number: JP19880197580