| 摘要 |
<p>An iron-based mixed powder for powder metallurgy comprising:
an iron-based, mixed powder made by mixing an iron-based powder, a powder for an alloy, a powder for a machinability improvement and a lubricant;
wherein the powder for machinability improvement is manganese sulphide powder and calcium fluoride powder;
wherein an average particle diameter of the manganese sulfide powder is 1 to 10 micrometers and an average particle diameter of calcium fluoride powder is 20 to 60 micrometers;
wherein the content of the calcium fluoride powder is 20 to 80 mass% based on the total amounts of the manganese sulphide powder and the calcium fluoride powder; and
wherein the powder for machinability improvement is in an amount of 0.1 to 1.5 mass% based on the total amounts of the iron-based powder, the powder for machinability improvement.</p> |
