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GB1387444A - Method of coating particles - Google Patents

Method of coating particles

Info

Publication number
GB1387444A
GB1387444A GB2544372A GB2544372A GB1387444A GB 1387444 A GB1387444 A GB 1387444A GB 2544372 A GB2544372 A GB 2544372A GB 2544372 A GB2544372 A GB 2544372A GB 1387444 A GB1387444 A GB 1387444A
Authority
GB
United Kingdom
Prior art keywords
bed
metal
particulate material
solution
coating
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.)
Expired
Application number
GB2544372A
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.)
De Beers Industrial Diamond Division Pty Ltd
Original Assignee
De Beers Industrial Diamond Division Pty 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 De Beers Industrial Diamond Division Pty Ltd filed Critical De Beers Industrial Diamond Division Pty Ltd
Publication of GB1387444A publication Critical patent/GB1387444A/en
Expired legal-status Critical Current

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
    • C25D7/00—Electroplating characterised by the article coated
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Chemically Coating (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

1387444 Coating particulate material with metal by fluidized bed DE BEERS INDUSTRIAL DIAMOND DIVISION Ltd 31 May 1972 [1 June 1971] 25443/72 Headings C7B and C7F A method of metal coating particulate material (e.g. electrolytically or electrolessly) includes the steps of forming a bed of particulate material, fluidizing the bed by passing a metal coating solution through it, pulsating the flow of coating solution to cause the bed to pulsate, and causing the metal to deposit onto the material. The particulate material may be abrasive such as diamond, cubic boron nitride or silicon carbide or may be ceramic. The metal which is applied may be Cu, Ni, Au, Fe or Co. For example Cu is electrolytically coated onto diamond particles having an electroless Ni flashing thereon using a solution containing CuSO H 2 SO 4 and gelatine. As shown, a bed of particles 58 to be coated is fluidized by plating solution pumped upwardly through a perforated plate 44. A carbon cathode 52 contacts the bed and there is a porous membrane 50 and a tubular metal anode 54. The solution is circulated by a peristaltic pump 62 which is operated so as to cause the bed to pulsate. There is a throttling device 64 and flowmeter 66. Reference has been directed by the Comptroller to Specification 1194181.
GB2544372A 1971-06-01 1972-05-31 Method of coating particles Expired GB1387444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA713502A ZA713502B (en) 1971-06-01 1971-06-01 An improved method of and apparatus for electrolytically coating particles

Publications (1)

Publication Number Publication Date
GB1387444A true GB1387444A (en) 1975-03-19

Family

ID=25563445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2544372A Expired GB1387444A (en) 1971-06-01 1972-05-31 Method of coating particles

Country Status (6)

Country Link
US (1) US3779873A (en)
BE (1) BE783913A (en)
DE (1) DE2226501C3 (en)
GB (1) GB1387444A (en)
IE (1) IE36460B1 (en)
ZA (1) ZA713502B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323779A1 (en) * 1975-09-11 1977-04-08 Us Energy ELECTROLYTIC PLATING TECHNOLOGY AND EQUIPMENT LEADING TO A COATING ON DISCREET MICRO PARTICLES
FR2460348A1 (en) * 1979-06-29 1981-01-23 Onera (Off Nat Aerospatiale) METHOD AND DEVICE FOR COATING SMALL DIMENSIONAL ELEMENTS OF A METAL DEPOSITION
EP0119030A1 (en) * 1983-03-02 1984-09-19 Kuraray Co., Ltd. Electroplating on inorganic powdery or granular materials
DE3423717A1 (en) * 1984-06-27 1986-01-09 Hans Klaus 8182 Bad Wiessee Schneider Device for coating objects with granular or powdered material, especially diamond dust

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994785A (en) * 1975-01-09 1976-11-30 Rippere Ralph E Electrolytic methods for production of high density copper powder
US4046643A (en) * 1975-09-09 1977-09-06 Rippere Ralph E Production of multi-metal particles for powder metallurgy alloys
US4316786A (en) * 1980-09-19 1982-02-23 The United States Of America As Represented By The United States Department Of Energy Apparatus for electroplating particles of small dimension
US6077410A (en) * 1996-12-31 2000-06-20 Byron; David E. Method and apparatus for forming crystals
US5855314A (en) * 1997-03-07 1999-01-05 Norton Company Abrasive tool containing coated superabrasive grain
US5832360A (en) * 1997-08-28 1998-11-03 Norton Company Bond for abrasive tool
US6187071B1 (en) 1999-01-14 2001-02-13 Norton Company Bond for abrasive tool
US20050014010A1 (en) * 2003-04-22 2005-01-20 Dumm Timothy Francis Method to provide wear-resistant coating and related coated articles
CN103694955B (en) * 2013-12-11 2015-04-08 北京保利世达科技有限公司 Preparation method of monocrystal diamond abrasive particles

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US521991A (en) * 1894-06-26 Metallic powder
US1789443A (en) * 1926-06-05 1931-01-20 Anaconda Sales Co Roofing material
CH458007A (en) * 1966-09-10 1968-06-15 Sel Rex Corp Process for the galvanic treatment of bulk parts and installation for implementing this process
US3498890A (en) * 1967-03-27 1970-03-03 Melpar Inc Preparation of fiber-metal composites by electrodeposition
GB1232582A (en) * 1967-05-09 1971-05-19
US3577324A (en) * 1968-01-24 1971-05-04 Sondell Research Dev Co Process of coating particles with metals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323779A1 (en) * 1975-09-11 1977-04-08 Us Energy ELECTROLYTIC PLATING TECHNOLOGY AND EQUIPMENT LEADING TO A COATING ON DISCREET MICRO PARTICLES
FR2460348A1 (en) * 1979-06-29 1981-01-23 Onera (Off Nat Aerospatiale) METHOD AND DEVICE FOR COATING SMALL DIMENSIONAL ELEMENTS OF A METAL DEPOSITION
US4292144A (en) * 1979-06-29 1981-09-29 Office National D'etudes Et De Recherches Aerospatiales Process and device for coating small-sized elements with a metal deposit
EP0119030A1 (en) * 1983-03-02 1984-09-19 Kuraray Co., Ltd. Electroplating on inorganic powdery or granular materials
DE3423717A1 (en) * 1984-06-27 1986-01-09 Hans Klaus 8182 Bad Wiessee Schneider Device for coating objects with granular or powdered material, especially diamond dust

Also Published As

Publication number Publication date
US3779873A (en) 1973-12-18
DE2226501A1 (en) 1972-12-14
ZA713502B (en) 1972-08-30
IE36460B1 (en) 1976-11-10
DE2226501B2 (en) 1981-04-23
DE2226501C3 (en) 1982-03-25
IE36460L (en) 1972-12-01
BE783913A (en) 1972-09-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years