NL7612327A - Fine screening surface with attached supporting coarse screen - are produced separately, soldered locally and bonded under vacuum - Google Patents

Fine screening surface with attached supporting coarse screen - are produced separately, soldered locally and bonded under vacuum

Info

Publication number
NL7612327A
NL7612327A NL7612327A NL7612327A NL7612327A NL 7612327 A NL7612327 A NL 7612327A NL 7612327 A NL7612327 A NL 7612327A NL 7612327 A NL7612327 A NL 7612327A NL 7612327 A NL7612327 A NL 7612327A
Authority
NL
Netherlands
Prior art keywords
solder
fine
layer
gauze
supporting
Prior art date
Application number
NL7612327A
Other languages
Dutch (nl)
Original Assignee
Veco Beheer Electro Photo
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 Veco Beheer Electro Photo filed Critical Veco Beheer Electro Photo
Priority to NL7612327A priority Critical patent/NL7612327A/en
Publication of NL7612327A publication Critical patent/NL7612327A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00—Electroforming
    • C25D1/08—Perforated or foraminous objects, e.g. sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4618—Manufacturing of screening surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/469—Perforated sheet-like material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

A very fine gauze surface is provided with a support such as a coarse supporting sieve. The fine gauze surface and the supporting body are produced separately. On one or both of the bodies, the supporting body or the fine gauze, a layer of soldering material is deposited galvanically. At the most this layer is as thick as the lands between the openings in the fine gauze material. The gauze and the supporting body are then pressed together, the layer of solder if not already fluid, is liquefied by heat and the bond is made when the solder sets. The layer of solder is applied galvanically with one face of the supporting sieve or of the fine gauze covered by the matrix in which it was formed, as it hangs in the bath. The layer of solder may be applied with the reverse face of the body covered by a layer of lacquer. The layer of solder is at most half as thick as the lands of the fine screen. The solder is applied to the fine screen only on separate surfaces smaller than those of the supporting screen with which it comes into contact, such as small round zones. The pressing together of the two screens for soldering is effected by arranging them between pressing details and applying a vacuum. A simpler method of providing a fine screen having a thicker supporting body above it, without filling the holes with solder, or the difficulties of electroformation in which lateral bridges can be set up and block parts of the fine gauze. The supporting body may be of a different metal from that of the fine gauze.
NL7612327A 1976-11-05 1976-11-05 Fine screening surface with attached supporting coarse screen - are produced separately, soldered locally and bonded under vacuum NL7612327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7612327A NL7612327A (en) 1976-11-05 1976-11-05 Fine screening surface with attached supporting coarse screen - are produced separately, soldered locally and bonded under vacuum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7612327A NL7612327A (en) 1976-11-05 1976-11-05 Fine screening surface with attached supporting coarse screen - are produced separately, soldered locally and bonded under vacuum

Publications (1)

Publication Number Publication Date
NL7612327A true NL7612327A (en) 1978-05-09

Family

ID=19827175

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7612327A NL7612327A (en) 1976-11-05 1976-11-05 Fine screening surface with attached supporting coarse screen - are produced separately, soldered locally and bonded under vacuum

Country Status (1)

Country Link
NL (1) NL7612327A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5626234A (en) * 1994-03-03 1997-05-06 United Wire Limited Sifting screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5626234A (en) * 1994-03-03 1997-05-06 United Wire Limited Sifting screen

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Legal Events

Date Code Title Description
BV The patent application has lapsed