JPS6477843A - Shadow mask composition - Google Patents

Shadow mask composition

Info

Publication number
JPS6477843A
JPS6477843A JP23216987A JP23216987A JPS6477843A JP S6477843 A JPS6477843 A JP S6477843A JP 23216987 A JP23216987 A JP 23216987A JP 23216987 A JP23216987 A JP 23216987A JP S6477843 A JPS6477843 A JP S6477843A
Authority
JP
Japan
Prior art keywords
frame
shadow mask
metals
tensile force
bimetal
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
JP23216987A
Other languages
Japanese (ja)
Inventor
Masaki Shinoda
Hideo Tanabe
Takao Kawamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP23216987A priority Critical patent/JPS6477843A/en
Publication of JPS6477843A publication Critical patent/JPS6477843A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE:To prevent bending of a frame resulting from the tension of a shadow mask and unifying the tensile force of the shadow mask by contacting metals with the thermal expansivity different from that of the frame to the sides of the frame, and composing a bimetal with frame and the metals. CONSTITUTION:At the outer side surfaces of a frame 1, metals 2 with the thermal expansivity larger than that of the frame 1 are stuck or connected by the welding or the like, and a bimetal structure is formed by the frame 1 and the metals 2. By heating the bimetal and raising the temperature, the frame 1 is deformed inward because the thermal expansivity of the metals 2 is larger than that of the frame 1. To the frame 1 in the condition deformed inward in such a way, the shadow mask 3 in the condition a tensile force is applied is welded continuously along the welding line 4. Then, by cooling (to the normal temperature), the frame restores to the original condition. By the outward expansion of the frame 1, an even tensile force is applied on the shadow mask 3.
JP23216987A 1987-09-18 1987-09-18 Shadow mask composition Pending JPS6477843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23216987A JPS6477843A (en) 1987-09-18 1987-09-18 Shadow mask composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23216987A JPS6477843A (en) 1987-09-18 1987-09-18 Shadow mask composition

Publications (1)

Publication Number Publication Date
JPS6477843A true JPS6477843A (en) 1989-03-23

Family

ID=16935076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23216987A Pending JPS6477843A (en) 1987-09-18 1987-09-18 Shadow mask composition

Country Status (1)

Country Link
JP (1) JPS6477843A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000033506A (en) * 1998-11-24 2000-06-15 김순택 Mask frame for cathode ray tube
WO2001048784A1 (en) * 1999-12-24 2001-07-05 Koninklijke Philips Electronics N.V. A color cathode ray tube comprising a tension mask
SG85107A1 (en) * 1995-07-26 2001-12-19 Sony Corp Colour cathode-ray tube and method of manufacturing the same
JP2013225986A (en) * 2012-04-20 2013-10-31 Yaskawa Electric Corp Field yoke assembly and linear motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG85107A1 (en) * 1995-07-26 2001-12-19 Sony Corp Colour cathode-ray tube and method of manufacturing the same
KR20000033506A (en) * 1998-11-24 2000-06-15 김순택 Mask frame for cathode ray tube
WO2001048784A1 (en) * 1999-12-24 2001-07-05 Koninklijke Philips Electronics N.V. A color cathode ray tube comprising a tension mask
JP2013225986A (en) * 2012-04-20 2013-10-31 Yaskawa Electric Corp Field yoke assembly and linear motor

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