YU6890A - PROCEDURE AND DEVICE FOR SHEET METAL FORMING - ESPECIALLY FOR MAKING A CATHODIC PIPE MASK - Google Patents

PROCEDURE AND DEVICE FOR SHEET METAL FORMING - ESPECIALLY FOR MAKING A CATHODIC PIPE MASK

Info

Publication number
YU6890A
YU6890A YU6890A YU6890A YU6890A YU 6890 A YU6890 A YU 6890A YU 6890 A YU6890 A YU 6890A YU 6890 A YU6890 A YU 6890A YU 6890 A YU6890 A YU 6890A
Authority
YU
Yugoslavia
Prior art keywords
clamp
sheet metal
making
procedure
peripheral
Prior art date
Application number
YU6890A
Other languages
Serbo-Croatian (sh)
Other versions
YU47340B (en
Inventor
G. De Smet
Original Assignee
Sollac
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 Sollac filed Critical Sollac
Publication of YU6890A publication Critical patent/YU6890A/en
Publication of YU47340B publication Critical patent/YU47340B/en

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/10—Stamping using yieldable or resilient pads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0722—Frame

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

POSTUPAK I UREDJAJ ZA FORMIRANJE LIMENE PLOČE - NAROČITO ZA IZRADU MASKE KATODNE CEVI, pronalazak se odnosi na postupak i uredjaj za formiranje limene ploče (1), osobito za izradu maske katodne cevi, na presi, prema kome se periferni deo (1b) limene ploče (1) drži na maloj širini u perifernom stezaču (30) i formira prema datoj zakrivljenosti centralni deo limene ploče (1) deformisanjem patrice (17) i matrice (13) pod dejstvom gornje podloge (19) i dejstvuje na lokalizovane zone stezača (30) mehaničkom akcijom, približujući suprotne elemente stezača (30) a istovremeno se priljubljuje i razvija periferna zona limene ploče (1) duž bočnih zidova patrice (17) relativnim pomeranjem stezača (30) u odnosu na patricu (17) ili matricu (13), da bi se dobila definitivna oborena ivica. Predmet pronalaska je isto tako i maska katodne cevi načinjena ovim postupkom.The invention relates to a method and a device for forming a sheet metal casing (1), in particular for making a cathode ray tube mask, on a press, according to which the peripheral part (1b) of a sheet metal (1) holds a small width in the peripheral clamp (30) and forms according to the given curvature the central part of the sheet metal plate (1) by deforming the bracket (17) and the die (13) under the action of the upper base (19) and acts on localized clamp zones ) by mechanical action, approaching the opposite elements of the clamp (30) and at the same time adhering and developing the peripheral zone of the sheet metal plate (1) along the side walls of the clamp (17) by relative movement of the clamp (30) relative to the clamp (17) or matrix (13), to obtain a definite beveled edge. The subject of the invention is also a cathode ray tube mask made by this method.

YU6890A 1989-01-18 1990-01-16 PROCEDURE AND DEVICE FOR FORMATION OF SHEET PLATE, ESPECIALLY FOR MAKING OF A MASK OF THE CATHODE PIPE YU47340B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8900545A FR2641720B1 (en) 1989-01-18 1989-01-18 METHOD AND DEVICE FOR FORMING A SHEET OF METAL PARTICULARLY FOR PRODUCING A CATHODE RAY MASK AND CATHODE RAY MASK OBTAINED ACCORDING TO THIS METHOD

Publications (2)

Publication Number Publication Date
YU6890A true YU6890A (en) 1993-11-16
YU47340B YU47340B (en) 1995-01-31

Family

ID=9377824

Family Applications (1)

Application Number Title Priority Date Filing Date
YU6890A YU47340B (en) 1989-01-18 1990-01-16 PROCEDURE AND DEVICE FOR FORMATION OF SHEET PLATE, ESPECIALLY FOR MAKING OF A MASK OF THE CATHODE PIPE

Country Status (7)

Country Link
CZ (1) CZ283470B6 (en)
DD (1) DD292766A5 (en)
FR (1) FR2641720B1 (en)
HU (1) HU207473B (en)
PL (1) PL164126B1 (en)
RU (1) RU2036041C1 (en)
YU (1) YU47340B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2564798C2 (en) * 2013-03-19 2015-10-10 Общество с ограниченной ответственностью "Научно-исследовательский институт "МИТОМ" Production of bent channel from sheet blank with longitudinal banding in truing and device to this end
CN113859370B (en) * 2021-11-02 2023-04-14 一汽解放汽车有限公司 Die set

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422883A (en) * 1942-01-24 1947-06-24 Douglas Aircraft Co Inc Method and apparatus for flanging sheet metal
US3296850A (en) * 1964-08-25 1967-01-10 Rauland Corp Mask forming
DE3572081D1 (en) * 1984-09-28 1989-09-07 Philips Nv Method of drape drawing a shadow mask for a colour display tube and device for such a method

Also Published As

Publication number Publication date
HU207473B (en) 1993-04-28
HU900151D0 (en) 1990-03-28
FR2641720B1 (en) 1991-09-13
PL164126B1 (en) 1994-06-30
DD292766A5 (en) 1991-08-08
RU2036041C1 (en) 1995-05-27
FR2641720A1 (en) 1990-07-20
CZ283470B6 (en) 1998-04-15
CZ23790A3 (en) 1993-03-17
YU47340B (en) 1995-01-31
HUT54544A (en) 1991-03-28

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