KR950015495A - How to make shadow mask - Google Patents

How to make shadow mask Download PDF

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Publication number
KR950015495A
KR950015495A KR1019930026177A KR930026177A KR950015495A KR 950015495 A KR950015495 A KR 950015495A KR 1019930026177 A KR1019930026177 A KR 1019930026177A KR 930026177 A KR930026177 A KR 930026177A KR 950015495 A KR950015495 A KR 950015495A
Authority
KR
South Korea
Prior art keywords
shadow mask
blackening
refrigerant
heat
present
Prior art date
Application number
KR1019930026177A
Other languages
Korean (ko)
Other versions
KR100201125B1 (en
Inventor
박영호
천현태
Original Assignee
엄길용
오리온전기 주식회사
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 엄길용, 오리온전기 주식회사 filed Critical 엄길용
Priority to KR1019930026177A priority Critical patent/KR100201125B1/en
Publication of KR950015495A publication Critical patent/KR950015495A/en
Application granted granted Critical
Publication of KR100201125B1 publication Critical patent/KR100201125B1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
    • H01J9/146—Surface treatment, e.g. blackening, coating

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

본 발명은 섀도우마스크를 제조하는 개선된 방법을 개시한다.The present invention discloses an improved method of making a shadow mask.

열변형 특성의 향상을 위해 섀도우 마스크 재질로 사용되는 인바강은 성형성이 열악하여 열처리하여 열간 가공하지 않으면 안되는데, 이 과정에서 재질이 소둔되어 열변형 특성이 불량해지는 문제가 있었다.Invar steel, which is used as a shadow mask material to improve the heat deformation property, is poor in formability and must be heat-treated by heat treatment. In this process, the material is annealed, resulting in poor heat deformation properties.

본 발명에서는 섀도우 마스크를 그 재결정온도 이상에서 흑화시킨뒤, 냉매를 분사하여 적어도 섀도우 마스크의 PD부를 급냉시킴으로써 강도를 증대시켜 화질의 열화를 방지하였다.In the present invention, after the blackening of the shadow mask above the recrystallization temperature, the refrigerant is sprayed to quench the PD part of the shadow mask at least to increase the strength to prevent deterioration of image quality.

Description

섀도우 마스크 제조방법How to make shadow mask

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명 제조방법을 보이는 흐름도.3 is a flow chart showing the manufacturing method of the present invention.

제4도는 본 발명 제조방법의 구현을 위한 장치의 구성을 보이는 개략 단면도이다.4 is a schematic cross-sectional view showing the configuration of an apparatus for implementing the manufacturing method of the present invention.

Claims (5)

섀도우마스크를 성형한뒤 흑화시키는 섀도우마스크 제조방법에 있어서, 상기 흑화 직후에 상기 섀도우마스크에 냉매를 분사시켜 급냉시키는 것을 특징으로 하는 섀도우마스크 제조방법.A shadow mask manufacturing method for forming a shadow mask and then blackening the shadow mask, wherein the shadow mask is manufactured by injecting a coolant into the shadow mask immediately after the blackening to rapidly cool the shadow mask. 제1항에 있어서, 상기 냉매의 분사가 적어도 상기 섀도우 마스크의 PD부에 집중되어 이를 부분급냉시키는 것을 특징으로 하는 섀도우마스크 제조방법.2. The method of claim 1, wherein the injection of the refrigerant is concentrated at least in the PD portion of the shadow mask to partially quench it. 제1항에 있어서, 상기 냉매가 드라이 아이스 분말인 것을 특징으로 하는 섀도우마스크 제조방법.The method of claim 1, wherein the refrigerant is dry ice powder. 제1항에 있어서, 상기 흑화온도가 상기 섀도우마스크의 재결정 온도 이상으로 유지되는 것을 특징으로 하는 섀도우마스크 제조방법.The method of claim 1, wherein the blackening temperature is maintained above the recrystallization temperature of the shadow mask. 제4항에 있어서, 상기 흑화온도가 600℃∼750℃로 유지되는 것을 특징으로 하는 섀도우마스크 제조방법.The method of claim 4, wherein the blackening temperature is maintained at 600 ° C. to 750 ° C. 6. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930026177A 1993-11-30 1993-11-30 Manufacturing method of crt shadow mask KR100201125B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930026177A KR100201125B1 (en) 1993-11-30 1993-11-30 Manufacturing method of crt shadow mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930026177A KR100201125B1 (en) 1993-11-30 1993-11-30 Manufacturing method of crt shadow mask

Publications (2)

Publication Number Publication Date
KR950015495A true KR950015495A (en) 1995-06-17
KR100201125B1 KR100201125B1 (en) 1999-06-15

Family

ID=19369673

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930026177A KR100201125B1 (en) 1993-11-30 1993-11-30 Manufacturing method of crt shadow mask

Country Status (1)

Country Link
KR (1) KR100201125B1 (en)

Also Published As

Publication number Publication date
KR100201125B1 (en) 1999-06-15

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