JPH03207884A - 高耐食性の工業用硬質クロム層を直接的又は間接的に析出させる方法 - Google Patents

高耐食性の工業用硬質クロム層を直接的又は間接的に析出させる方法

Info

Publication number
JPH03207884A
JPH03207884A JP2270685A JP27068590A JPH03207884A JP H03207884 A JPH03207884 A JP H03207884A JP 2270685 A JP2270685 A JP 2270685A JP 27068590 A JP27068590 A JP 27068590A JP H03207884 A JPH03207884 A JP H03207884A
Authority
JP
Japan
Prior art keywords
pulse frequency
current density
shiny
current
range
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.)
Pending
Application number
JP2270685A
Other languages
English (en)
Japanese (ja)
Inventor
Martin Kohl
マルティン、ケール
Wolfgang Clauberg
ヴォルフガング、クラウベルク
G Pietzak Elisabeth Bieling
エリーザベト、ビーリング、ゲボーレン、ピーツァック
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.)
LPW Chemie GmbH
Original Assignee
LPW Chemie GmbH
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 LPW Chemie GmbH filed Critical LPW Chemie GmbH
Publication of JPH03207884A publication Critical patent/JPH03207884A/ja
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/627Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/04Electroplating: Baths therefor from solutions of chromium
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/04Electroplating: Baths therefor from solutions of chromium
    • C25D3/10Electroplating: Baths therefor from solutions of chromium characterised by the organic bath constituents used
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10Electroplating with more than one layer of the same or of different metals
    • C25D5/12Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C25D5/14Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/18Electroplating using modulated, pulsed or reversing current

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)
  • Electroplating And Plating Baths Therefor (AREA)
JP2270685A 1989-10-11 1990-10-11 高耐食性の工業用硬質クロム層を直接的又は間接的に析出させる方法 Pending JPH03207884A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3933896.7 1989-10-11
DE3933896A DE3933896C1 (de) 1989-10-11 1989-10-11

Publications (1)

Publication Number Publication Date
JPH03207884A true JPH03207884A (ja) 1991-09-11

Family

ID=6391241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2270685A Pending JPH03207884A (ja) 1989-10-11 1990-10-11 高耐食性の工業用硬質クロム層を直接的又は間接的に析出させる方法

Country Status (5)

Country Link
JP (1) JPH03207884A (de)
DE (1) DE3933896C1 (de)
ES (1) ES2023577A6 (de)
FR (1) FR2652825B1 (de)
GB (1) GB2236763B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05161904A (ja) * 1991-12-12 1993-06-29 Mishima Kosan Co Ltd 冷間圧延用ロール
US6329071B1 (en) 1998-11-06 2001-12-11 Tokico Ltd. Chrome plated parts and chrome plating method
US6641710B2 (en) 2000-08-29 2003-11-04 Soqi, Inc. Metal plating method
JP2007533852A (ja) * 2004-04-21 2007-11-22 フェデラル−モーグル ブルシャイト ゲゼルシャフト ミット ベシュレンクテル ハフツング 構造化硬質クロム層の製造およびコーティングの製造
USRE40386E1 (en) 1998-11-06 2008-06-17 Hitachi Ltd. Chrome plated parts and chrome plating method
US8173004B2 (en) 2003-09-30 2012-05-08 Hitachi, Ltd. Method of manufacturing chromium plated article and chromium plating apparatus
KR20180005180A (ko) 2015-05-12 2018-01-15 히다치 오토모티브 시스템즈 가부시키가이샤 크롬 도금 부품의 제조 방법 및 크롬 도금 장치
KR20220043575A (ko) 2020-09-29 2022-04-05 주식회사 원탑플레이팅 크롬 도금 부품의 제조 방법 및 크롬 도금 장치

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011201C1 (en) * 1990-04-06 1991-08-22 Lpw-Chemie Gmbh, 4040 Neuss, De Coating workpiece with chromium for improved corrosion resistance - comprises using aq. electrolyte soln. contg. chromic acid sulphate ions, and fluoro:complexes to increase deposition
US5670265A (en) * 1990-10-20 1997-09-23 Ina Walzlager Schaeffler Kg Steel component with an electroplated anti-corrosive coating and process for producing same
DE4125585A1 (de) * 1990-10-20 1992-04-30 Schaeffler Waelzlager Kg Bauteil aus stahl mit galvanisch aufgebrachter korrosionsschutzschicht
USRE35860F1 (en) * 1991-06-05 2001-01-02 Timken Co Corrosion-resistant zinc-nickel plated bearing races
US5352266A (en) * 1992-11-30 1994-10-04 Queen'university At Kingston Nanocrystalline metals and process of producing the same
IT1267394B1 (it) * 1994-02-18 1997-02-05 Ind S R L Procedimento per la realizzazione di riporti galvanici compositi in cromo duro con una fase dispersa e riporto anti-usura realizzato con
DE4430923C2 (de) * 1994-08-31 1997-10-09 Schaeffler Waelzlager Kg Galvanisches Chrombad, Verfahren zur galvanischen Abscheidung von Chrom und Verwendung des Bades
DE10006151A1 (de) * 2000-02-11 2001-09-06 Heinz Busch System mit einem Träger und einer Hartstoffbeschichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518789A (en) * 1978-07-27 1980-02-09 Mitsubishi Electric Corp Temperature controller
JPS6332874A (ja) * 1986-07-24 1988-02-12 Matsushita Electric Works Ltd 蓄電池の温度センサ取付構造

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232854A (en) * 1959-06-05 1966-02-01 Diamond Alkali Co Chromium plating
US4092226A (en) * 1974-12-11 1978-05-30 Nikolaus Laing Process for the treatment of metal surfaces by electro-deposition of metal coatings at high current densities
DE2604628A1 (de) * 1976-02-06 1977-08-11 Rosenloecher Claus Verfahren zur unmittelbaren galvanischen hartverchromung von nickel
DE3402554A1 (de) * 1984-01-26 1985-08-08 LPW-Chemie GmbH, 4040 Neuss Abscheidung von hartchrom auf einer metallegierung aus einem waessrigen, chromsaeure und schwefelsaeure enthaltenden elektrolyten
US4789437A (en) * 1986-07-11 1988-12-06 University Of Hong Kong Pulse electroplating process
IT1216808B (it) * 1987-05-13 1990-03-14 Sviluppo Materiali Spa Processo di elettrodeposizione in continuo di cromo metallico e di ossido di cromo su superfici metalliche
IT1215985B (it) * 1988-03-04 1990-02-22 Elca Srl Procedimento elettrochimico per la realizzazione di rivestimenti di cromo e metalli simili mediante corrente pulsante ad inversione periodica della polarita'

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518789A (en) * 1978-07-27 1980-02-09 Mitsubishi Electric Corp Temperature controller
JPS6332874A (ja) * 1986-07-24 1988-02-12 Matsushita Electric Works Ltd 蓄電池の温度センサ取付構造

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05161904A (ja) * 1991-12-12 1993-06-29 Mishima Kosan Co Ltd 冷間圧延用ロール
US6329071B1 (en) 1998-11-06 2001-12-11 Tokico Ltd. Chrome plated parts and chrome plating method
USRE40386E1 (en) 1998-11-06 2008-06-17 Hitachi Ltd. Chrome plated parts and chrome plating method
US6641710B2 (en) 2000-08-29 2003-11-04 Soqi, Inc. Metal plating method
US8173004B2 (en) 2003-09-30 2012-05-08 Hitachi, Ltd. Method of manufacturing chromium plated article and chromium plating apparatus
JP2007533852A (ja) * 2004-04-21 2007-11-22 フェデラル−モーグル ブルシャイト ゲゼルシャフト ミット ベシュレンクテル ハフツング 構造化硬質クロム層の製造およびコーティングの製造
KR20180005180A (ko) 2015-05-12 2018-01-15 히다치 오토모티브 시스템즈 가부시키가이샤 크롬 도금 부품의 제조 방법 및 크롬 도금 장치
JPWO2016181955A1 (ja) * 2015-05-12 2018-03-01 日立オートモティブシステムズ株式会社 クロムめっき部品の製造方法およびクロムめっき装置
US10851464B1 (en) 2015-05-12 2020-12-01 Hitachi Automotive Systems, Ltd. Method for producing chromium plated parts, and chromium plating apparatus
KR20220043575A (ko) 2020-09-29 2022-04-05 주식회사 원탑플레이팅 크롬 도금 부품의 제조 방법 및 크롬 도금 장치

Also Published As

Publication number Publication date
GB9021528D0 (en) 1990-11-14
DE3933896C1 (de) 1990-10-11
GB2236763B (en) 1993-11-17
ES2023577A6 (es) 1992-01-16
FR2652825A1 (fr) 1991-04-12
GB2236763A (en) 1991-04-17
FR2652825B1 (fr) 1993-12-24

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