Title:
粉末冶金製造された鋼、その鋼を含む工具、およびその工具の製造方法
Document Type and Number:
Japanese Patent JP2009504922
Kind Code:
A
Abstract:
A steel that has been manufactured powder metallurgically and that is characterised by having a chemical composition containing, in % by weight, 1.1-2.3 C+N, 0.1-2.0 Si, 0.1-3.0 Mn, max 20 Cr, 5-20 (Mo+W/2), 0-20 Co, where the total contents of niobium and vanadium (Nb + V) is balanced in relation to the ratio between the contents of niobium and vanadium (Nb/V), such that the contents of these elements and the ratio them between lie within an area that is defined by the coordinates A, B, C in the system of coordinates in Fig. 1, where A: [4.0; 0.55], B: [4.0; 4.0], C: [7.0; 0.55], and no more than 1 % in total of Cu, Ni, Sn, Pb, Ti, Zr, and Al, balance iron and unavoidable impurities from the manufacturing of the steel. The invention also relates to tools for hot working or chip removal or cold working, or an advanced machine element manufactured from the steel, as well as a method for the manufacturing of such.
Inventors:
Sandin, Stephan
Application Number:
JP2008526909A
Publication Date:
February 05, 2009
Filing Date:
August 18, 2006
Export Citation:
Assignee:
ERASTEEL KLOSTER AKTIEBOLAG
International Classes:
C22C38/00; B22F3/15; B22F3/24; B22F9/08; C22C33/02; C22C38/58; C22C38/60
Domestic Patent References:
| JPH04280945A | 1992-10-06 | |||
| JPH0959748A | 1997-03-04 |
Other References:
JPN6013007800; Ｓａｄｉ Ｋａｒａｇｏｚ、Ｈａｎｓ-Ｏｌｏｆ Ａｎｄｒｅｎ: 'Ｓｅｃｏｎｄａｒｙ Ｈａｒｄｅｎｉｎｇ ｉｎ Ｈｉｇｈ Ｓｐｅｅｄ Ｓｔｅｅｌｓ' Ｚ．Ｍｅｔａｌｌｋｄ Ｖｏｌ．８３ Ｎｏ．６, 199206, Ｐａｇｅ．３８６-３９４
JPN6013007802; Ｊａｅ-Ｈｗａｎ Ａｈｎ、他３名: 'Ｅｆｆｅｃｔ ｏｆ ｎｉｏｂｉｕｍ ｏｎ ｔｈｅ ｍｅｃｈａｎｉｃａｌ ｐｒｏｐｅｒｔｉｅｓ ｏｆ ｐｏｗｄｅｒ-ｍｅｔａｌｌｕｒｇｙ ｐｒｏｃｅｓｓｅｄ ｈｉｇｈ-ｓｐｅｅｄ ｓｔｅｅｌｓ' Ｚ．Ｍｅｔａｌｌｋｄ Ｖｏｌ．９６ Ｎｏ．１２, 200512, Ｐａｇｅ．１４２６-１４３０
JPN6013007802; Ｊａｅ-Ｈｗａｎ Ａｈｎ、他３名: 'Ｅｆｆｅｃｔ ｏｆ ｎｉｏｂｉｕｍ ｏｎ ｔｈｅ ｍｅｃｈａｎｉｃａｌ ｐｒｏｐｅｒｔｉｅｓ ｏｆ ｐｏｗｄｅｒ-ｍｅｔａｌｌｕｒｇｙ ｐｒｏｃｅｓｓｅｄ ｈｉｇｈ-ｓｐｅｅｄ ｓｔｅｅｌｓ' Ｚ．Ｍｅｔａｌｌｋｄ Ｖｏｌ．９６ Ｎｏ．１２, 200512, Ｐａｇｅ．１４２６-１４３０
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata
Ishibashi Masayuki
Masaaki Ogata