Mixed powder for iron-based powder metallurgy, iron-based sintered alloy and sintering machine part, and method for producing iron-based sintered alloy

摘要

PROBLEM TO BE SOLVED: To provide a mixed powder for iron-based powder metallurgy which can reduce the dimensional change of a sintered body.SOLUTION: A mixed powder comprising an iron powder, a copper powder, a graphite powder and a lubricant has 0.05-1 mass% of a carbonate added thereto based on the total amounts of the iron powder, copper powder, and graphite powder.SELECTED DRAWING: None