Global Patent Index - EP 0680521 B1

EP 0680521 B1 2001-03-14 - FERROUS METAL ALLOYS, IN PARTICULAR FOR CASTING ROLLING MILL ROLLS

Title (en)

FERROUS METAL ALLOYS, IN PARTICULAR FOR CASTING ROLLING MILL ROLLS

Title (de)

EISENMETALLGUSSWERKSTOFFE, INSBESONDERE FÜR WALZROLLEN

Title (fr)

METAUX FERREUX COULES, EN PARTICULIER POUR CYLINDRES DE LAMINAGE

Publication

EP 0680521 B1 (EN)

Application

EP 94900231 A

Priority

  • GB 9302380 W
  • GB 9224271 A
  • GB 9315356 A

Abstract (en)

[origin: WO9411541A1] A method of making an engineering ferrous metal comprising the steps of adding to liquid engineering ferrous metal solid alloy carbide particles and thereafter permitting the ferrous metal to solidify. The alloy carbide particles are coated with iron or an iron alloy to allow wetting to occur between the powder and the liquid ferrous metal and the particles have a density which matches that of the ferrous metal to provide a uniform distribution of the carbide particles in the ferrous metal. A roll may be made having at least a shell made of metal by such a method by centrifugal casting or electroslag remelting.

IPC 1-7 (main, further and additional classification)

C22C 1/10; B22F 1/02; C21C 7/00; C22C 32/00

IPC 8 full level (invention and additional information)

B22D 19/14 (2006.01); B21B 27/00 (2006.01); B22D 13/02 (2006.01); B22D 23/10 (2006.01); B22F 1/02 (2006.01); C21C 7/00 (2006.01); C22B 9/18 (2006.01); C22C 1/05 (2006.01); C22C 1/10 (2006.01); C22C 32/00 (2006.01)

CPC (invention and additional information)

C22C 32/0026 (2013.01); B21B 27/00 (2013.01); B22D 23/10 (2013.01); B22F 1/025 (2013.01); C21C 7/0006 (2013.01); C22B 9/18 (2013.01); C22C 1/055 (2013.01); C22C 1/1068 (2013.01)

Citation (examination)

EP 0550725 A1 19930714 - LONDON SCANDINAVIAN METALL [GB]

Designated contracting state (EPC)

AT BE CH DE DK ES FR GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9411541 A1 19940526; AT 199747 T 20010315; AU 5530494 A 19940608; BR 9307499 A 19990601; DE 69330035 D1 20010419; DE 69330035 T2 20010621; DK 0680521 T3 20010417; DK 0680521 T5 20010611; EP 0680521 A1 19951108; EP 0680521 B1 20010314; ES 2155087 T3 20010501; GB 2289288 A 19951115; GB 2289288 B 19970416; GB 9510006 D0 19950712; JP H08506143 A 19960702

INPADOC legal status


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2001-05-25 [ET] FR: TRANSLATION FILED

2001-05-03 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: RACHELI & C. S.R.L.

2001-05-01 [REG ES FG2A] DEFINITIVE PROTECTION

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2001-04-19 [REF] CORRESPONDS TO:

- Document: DE 69330035 20010419

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2000-09-06 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

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2000-03-15 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19960917

2000-03-01 [RTI1] TITLE (CORRECTION)

- Free text: FERROUS METAL ALLOYS, IN PARTICULAR FOR CASTING ROLLING MILL ROLLS

1999-05-26 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: SHEFFIELD FORGEMASTERS LIMITED

1996-10-30 [17Q] FIRST EXAMINATION REPORT

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1995-11-08 [17P] REQUEST FOR EXAMINATION FILED

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