RAW MATERIAL FOR SHADOW MASK, METHOD FOR PRODUCTION THEREOF, SHADOW MASK AND PICTURE TUBE

Title:

RAW MATERIAL FOR SHADOW MASK, METHOD FOR PRODUCTION THEREOF, SHADOW MASK AND PICTURE TUBE

Document Type and Number:

WIPO Patent Application WO/2001/077399

Kind Code:

A1

Abstract:

A raw material for a shadow mask comprising a cold rolled steel sheet having a chemical composition: C: $m(F) 0.0008 wt %, Si $m(F) 0.03 wt %, Mn: 0.1 to 0.5 wt %, P: $m(F) 0.02 wt %, S: $m(F) 0.02 wt %, Al: 0.01 to 0.07 wt %, N: $m(F) 0.0030 wt %, B: 0.5 $m(F) B/N $m(F) 2, balance: Fe and inevitable impurities; a method for producing the material; a shadow mask using the material; and a picture tube using the shadow mask. The material has magnetic properties which are excellent and also homogeneous in a coil.

More Like This:

JPS63255321	MANUFACTURE OF CR-CONTAINING STEEL PRODUCT
WO/2011/068328	COLD ROLLED STEEL SHEET FOR PROCESSING WITH EXCELLENT HEAT RESISTANCE, AND PREPARATION METHOD THEREOF
JPH07300619	PRODUCTION OF NONORIENTED SILICON STEEL SHEET

Inventors:

UEDA TOSHIYUKI (JP)
AOKI SHINICHI (JP)
SATO TAIZO (JP)

Application Number:

PCT/JP2001/002230

Publication Date:

October 18, 2001

Filing Date:

March 21, 2001

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOYO KOHAN CO LTD (JP)
UEDA TOSHIYUKI (JP)
AOKI SHINICHI (JP)
SATO TAIZO (JP)

International Classes:

C21D9/46; C22C38/00; C22C38/04; C22C38/06; H01J9/14; H01J29/07; (IPC1-7): C22C38/00; C21D9/46; H01J29/07

Foreign References:

JPS55138027A	1980-10-28
JPH02254139A	1990-10-12
JPH02282423A	1990-11-20
JPS63286524A	1988-11-24

Download PDF:

View/Download PDF PDF Help

Previous Patent: FORGED SCROLL PART AND PRODUCTION METHOD THEREFOR

Next Patent: COATING INSTALLATION