| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.42 ( May 2000 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Copper Segregation-free Premixed Iron Powder
for Powder Metallurgy Satoshi Uenosono, Hiroshi Sugihara, Kuniaki Ogura |
| Synopsis: Kawasaki Steel has developed two kinds of copper segregation-free premixed iron powders. One is "binder treated type" segregation-free iron powder, in which fine copper powders are adhered on surface of iron powder by the binder and the other is "partially alloyed type" segregation-free iron powder. The characteristics of these two types of powders such as compressibility, Rattler value and ejection force are almost equal to those of conventional segregation-free iron powder, and the properties of sintered products, including tensile strength, Charpy impact value and dimensional change, are almost equal to those made of conventional segregation-free iron powder. The "partially alloyed type" segregation-free iron powder reduces the segregation of copper by 70% and improves dimensional accuracy by 20% compared with conventional segregation-free iron powder. |
| TextiPDF: 5P/210kbj |