Global Patent Index - EP 0964073 A1

EP 0964073 A1 19991215 - A steel sheet for use as an electrode-supporting frame member of a color picture tube and manufacturing method thereof

Title (en)

A steel sheet for use as an electrode-supporting frame member of a color picture tube and manufacturing method thereof

Title (de)

Stahlblech für einen, eine Elektrode tragenden Rahmen für ein Farbbildrohr und Verfahren zu seiner Herstellung

Title (fr)

TÔle d'acier pour un cadre support d'électrode d'un tube de télévision en couleur et son procédé de fabrication

Publication

EP 0964073 A1 19991215 (EN)

Application

EP 98109894 A 19980529

Priority

  • EP 98109894 A 19980529
  • JP 32566796 A 19961205

Abstract (en)

A steel sheet has composition consisting of 0.003-0.10 wt.% C, not more than 1.0 wt.% Si, 0.05-1.5 wt.% Mn, not more than 0.10 wt.% P, not more than 0.02 wt.% S, 1.5-8.0 wt.% Cr, 0.003-0.10 wt.% Al, at least one of 0.08-0.40 wt.% Ti, 0.08-0.40 wt.% Nb and 0.08-0.40 wt.% V, optionally at least one of Cu up to 2.0 wt.%, Ni up to 2.0 wt.%, 0.01-2.0 wt.% Mo, 0.01-2.0 wt.% W and 0.0003-0.0050 wt.% B and the balance being essentially Fe except inevitable impurities. The steel sheet is good of both a room-temperature strength and a high temperature strength. The new steel sheet is useful as a frame member of a color picture tube for stretching color selecting electrode elements, instead of an expensive ferritic stainless steel. <IMAGE>

IPC 1-7

C22C 38/24; C22C 38/26

IPC 8 full level

C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/38 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01)

CPC (source: EP)

C21D 8/0205 (2013.01); C22C 38/004 (2013.01); C22C 38/06 (2013.01); C22C 38/24 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C21D 8/0226 (2013.01); C21D 8/0278 (2013.01); H01J 2229/0722 (2013.01)

Citation (search report)

  • [A] WO 9613618 A1 19960509 - PO HANG IRON & STEEL [KR], et al
  • [X] PATENT ABSTRACTS OF JAPAN vol. 096, no. 007 31 July 1996 (1996-07-31)
  • [X] PATENT ABSTRACTS OF JAPAN vol. 009, no. 028 (C - 264) 6 February 1985 (1985-02-06)
  • [X] PATENT ABSTRACTS OF JAPAN vol. 098, no. 006 30 April 1998 (1998-04-30)
  • [X] PATENT ABSTRACTS OF JAPAN vol. 013, no. 029 (C - 562) 23 January 1989 (1989-01-23)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0964073 A1 19991215; JP 3647582 B2 20050511; JP H10158789 A 19980616

DOCDB simple family (application)

EP 98109894 A 19980529; JP 32566796 A 19961205