JPS64282A - Shadow mask and production thereof - Google Patents

Shadow mask and production thereof

Info

Publication number
JPS64282A
JPS64282A JP26266487A JP26266487A JPS64282A JP S64282 A JPS64282 A JP S64282A JP 26266487 A JP26266487 A JP 26266487A JP 26266487 A JP26266487 A JP 26266487A JP S64282 A JPS64282 A JP S64282A
Authority
JP
Japan
Prior art keywords
shadow mask
treatment
cathode
etching
cold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP26266487A
Other languages
Japanese (ja)
Other versions
JPH01282A (en
Inventor
Morinori Kamio
Norio Yuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Mining Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Mining Co Ltd filed Critical Nippon Mining Co Ltd
Priority to JP26266487A priority Critical patent/JPS64282A/en
Publication of JPH01282A publication Critical patent/JPH01282A/en
Publication of JPS64282A publication Critical patent/JPS64282A/en
Pending legal-status Critical Current

Links

Landscapes

  • ing And Chemical Polishing (AREA)

Abstract

PURPOSE: To obtain a shadow mask which has sufficient strength and is low in coercive force by cold-rolling steel contg. specified amounts of C, Si, Mn and S, and thereafter incorporating it into a cathode-ray tube in a state imparted with tension via boring by etching, heat-treatment and blackening process.
CONSTITUTION: Steel consisting of by weight ≤0.03% C, 1W5% Si, ≤1% Mn, ≤0.02% S and the balance Fe and inevitable impurities is cold-rolled to plate thickness not more than 50μm. Then it is incorporated into a cathode-ray tube in a state imparted with tension via the processes of boring by etching, heat- treatment at about 300W700°C and blackening treatment of a film. Thereby color shade is not caused and a shadow mask satisfying such both-sides that strength is sufficient and coercive force is low can be produced.
COPYRIGHT: (C)1989,JPO&Japio
JP26266487A 1987-03-30 1987-10-20 Shadow mask and production thereof Pending JPS64282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26266487A JPS64282A (en) 1987-03-30 1987-10-20 Shadow mask and production thereof

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP7419387 1987-03-30
JP62-74193 1987-03-30
JP26266487A JPS64282A (en) 1987-03-30 1987-10-20 Shadow mask and production thereof

Publications (2)

Publication Number Publication Date
JPH01282A JPH01282A (en) 1989-01-05
JPS64282A true JPS64282A (en) 1989-01-05

Family

ID=26415324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26266487A Pending JPS64282A (en) 1987-03-30 1987-10-20 Shadow mask and production thereof

Country Status (1)

Country Link
JP (1) JPS64282A (en)

Similar Documents

Publication Publication Date Title
JPS64282A (en) Shadow mask and production thereof
JPS6425953A (en) Shadow mask and its production
JPS56108822A (en) Manufacture of shadow mask blank
JPS5665963A (en) Nodular graphite cast iron and its manufacture
JPS55141545A (en) Highly corrosion resistant ferrite stainless steel
MX9801003A (en) A steel sheet for a shadow mask, a shadow mask and apicture tube.
MX9800951A (en) Raw material for magnetic shield, production method thereof, and color television receiver.
JPS5239519A (en) Method of manufacturing high tensile steel of superfine grain structur e
JPS5466313A (en) Heat hardening type aluminum alloy for forming and manufacture of sheet using the same
JPS5782454A (en) Wound iron core
JPS53109815A (en) Manufacture of non-oriented silicon steel sheet with high permeability
JPS5655540A (en) Low-tin phosphor bronze for spring and its manufacture
JPS56254A (en) Spinodal decomposition type fe-cr-mo-co permanent magnet alloy
JPS6442546A (en) Shadow mask and its production
JPS51143514A (en) Process for producing manganese addition agent for iron and steel
JPS569357A (en) Steel plate for enameling with excellent nail flying resistance
JPS5776175A (en) Manufacture of aluminum-based semihard electric wire
JPS54133418A (en) Case hardening steel without producing abnormal carburized structure
JPS6455353A (en) Shadow mask and its production
JPS5597452A (en) Soft steel for fine wire
JPS54102224A (en) Steel for shadow mask
JPS56150157A (en) Steel for low-temperature with excellent toughness at welded part
SU1188220A1 (en) Steel
JPS6475647A (en) Magnetic alloy and it manufacture
JPS6473022A (en) Production of semi-processed non-oriented electrical steel sheet having excellent magnetic characteristic