IT1077420B - METHOD OF CONTROL OF THE OPENINGS OBTAINED, THROUGH ATTACK, IN A METAL SHEET - Google Patents

METHOD OF CONTROL OF THE OPENINGS OBTAINED, THROUGH ATTACK, IN A METAL SHEET

Info

Publication number
IT1077420B
IT1077420B IT2589277A IT2589277A IT1077420B IT 1077420 B IT1077420 B IT 1077420B IT 2589277 A IT2589277 A IT 2589277A IT 2589277 A IT2589277 A IT 2589277A IT 1077420 B IT1077420 B IT 1077420B
Authority
IT
Italy
Prior art keywords
attack
control
metal sheet
openings obtained
openings
Prior art date
Application number
IT2589277A
Other languages
Italian (it)
Original Assignee
Rca Corp
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 Rca Corp filed Critical Rca Corp
Application granted granted Critical
Publication of IT1077420B publication Critical patent/IT1077420B/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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • ing And Chemical Polishing (AREA)
IT2589277A 1976-08-02 1977-07-19 METHOD OF CONTROL OF THE OPENINGS OBTAINED, THROUGH ATTACK, IN A METAL SHEET IT1077420B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71074376A 1976-08-02 1976-08-02

Publications (1)

Publication Number Publication Date
IT1077420B true IT1077420B (en) 1985-05-04

Family

ID=24855337

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2589277A IT1077420B (en) 1976-08-02 1977-07-19 METHOD OF CONTROL OF THE OPENINGS OBTAINED, THROUGH ATTACK, IN A METAL SHEET

Country Status (4)

Country Link
JP (1) JPS5318441A (en)
DE (1) DE2734842C3 (en)
FR (1) FR2360686A1 (en)
IT (1) IT1077420B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052725A (en) * 1976-08-02 1977-10-04 Rca Corporation Cathode-ray tube screening exposure method
JPS61199039A (en) * 1985-02-28 1986-09-03 Sumitomo Electric Ind Ltd Method for patenting high carbon steel wire rod of small diameter
US5288729A (en) * 1989-10-07 1994-02-22 Kabushiki Kaisha Toshiba Exposing method and apparatus
JP3034273B2 (en) * 1989-10-07 2000-04-17 株式会社東芝 Exposure method and exposure apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666579A (en) * 1970-06-15 1972-05-30 Zenith Radio Corp Etching electrodes
US3702277A (en) * 1970-09-23 1972-11-07 Zenith Radio Corp Control system for mask etching apparatus

Also Published As

Publication number Publication date
JPS5440450B2 (en) 1979-12-04
DE2734842C3 (en) 1979-11-15
FR2360686A1 (en) 1978-03-03
JPS5318441A (en) 1978-02-20
DE2734842A1 (en) 1978-02-09
DE2734842B2 (en) 1979-03-29

Similar Documents

Publication Publication Date Title
NO770761L (en) WELDING UNDER WATER.
NL162970C (en) ELECTROLYSIS METHOD.
NL7808825A (en) OTHALMIC METHOD.
IT7926791A0 (en) METHOD OF MANUFACTURE OF A POROUS SHEET METAL LAMINATE.
NL7710620A (en) ALLOY-FERROUS METAL SUBSTRATE.
NL7702103A (en) WELDING METHOD.
NL7801135A (en) METAL HANDRAIL.
NO153862C (en) ELABORABLE IRON-Nickel-Based Alloy.
GB1551543A (en) Sheet metal benders
NL7707591A (en) CASTING METHOD.
BR7805805A (en) METAL CONSTRUCTION WITHOUT FRAME
BE852744A (en) METAL SHEET PREPARATION PROCESS
IT7824272A0 (en) UNILATERAL THREADED INSERT, PARTICULARLY FOR THIN SHEET METAL.
SE422639B (en) metal halide
IT1084240B (en) METAL SHEET WINDING.
NL7700275A (en) WELDING METHOD.
SE7607734L (en) METAL FORMING
IT1077420B (en) METHOD OF CONTROL OF THE OPENINGS OBTAINED, THROUGH ATTACK, IN A METAL SHEET
NL7704757A (en) WELDING METHOD.
RO80871A (en) PROCEDURE FOR MANUFACTURING METAL PROFILES
NL7712245A (en) METAL CAST FOR SLOT WALLS.
ES230720Y (en) COLLECTABLE SHEET BLIND.
AR213988A1 (en) A METHOD OF PREPARING THE SURFACES OF PRODUCTS MADE OF IRON ALLOYS, NICKEL ALLOYS, OR CHROME ALLOYS
IT1080254B (en) SHEET METAL PUNCHING MACHINE
BE872513A (en) COLD-FORMED METAL PROFILE