CH472510A - Verfahren zur Steuerung der Nitritkonzentration eines Phosphatierungsbades - Google Patents

Verfahren zur Steuerung der Nitritkonzentration eines Phosphatierungsbades

Info

Publication number
CH472510A
CH472510A CH1154365A CH1154365A CH472510A CH 472510 A CH472510 A CH 472510A CH 1154365 A CH1154365 A CH 1154365A CH 1154365 A CH1154365 A CH 1154365A CH 472510 A CH472510 A CH 472510A
Authority
CH
Switzerland
Prior art keywords
controlling
nitrite concentration
phosphating bath
phosphating
bath
Prior art date
Application number
CH1154365A
Other languages
English (en)
Inventor
Steinbrecher Lester
E Buczkowski Dwight
W Harrison James
Original Assignee
Amchem Prod
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 Amchem Prod filed Critical Amchem Prod
Publication of CH472510A publication Critical patent/CH472510A/de

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/77—Controlling or regulating of the coating process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical Treatment Of Metals (AREA)
CH1154365A 1964-08-18 1965-08-17 Verfahren zur Steuerung der Nitritkonzentration eines Phosphatierungsbades CH472510A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US390375A US3401065A (en) 1964-08-18 1964-08-18 Automatic control of nitrite addition in acid phosphate coating solutions

Publications (1)

Publication Number Publication Date
CH472510A true CH472510A (de) 1969-05-15

Family

ID=23542226

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1154365A CH472510A (de) 1964-08-18 1965-08-17 Verfahren zur Steuerung der Nitritkonzentration eines Phosphatierungsbades

Country Status (11)

Country Link
US (1) US3401065A (de)
BE (1) BE668433A (de)
BR (1) BR6465104D0 (de)
CH (1) CH472510A (de)
DE (1) DE1274418B (de)
DK (1) DK129008B (de)
ES (1) ES316546A1 (de)
FR (1) FR1454007A (de)
GB (1) GB1113270A (de)
NL (1) NL139567B (de)
SE (1) SE333491B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516876A (en) * 1966-03-25 1970-06-23 Hooker Chemical Corp Automatic control method
US3481797A (en) * 1966-08-17 1969-12-02 Hooker Chemical Corp Method for operating chemical processing solutions
US3739795A (en) * 1971-07-19 1973-06-19 Nalco Chemical Co Method and apparatus for detecting and controlling foamability of a liquid system
US3874951A (en) * 1972-09-27 1975-04-01 Trw Inc Method for controlling iron content of a zinc phosphating bath
US4071379A (en) * 1976-01-28 1978-01-31 Imperial Chemical Industries Limited Phosphating method
JPS52141439A (en) * 1976-04-27 1977-11-25 Nippon Paint Co Ltd Method of managing chemicallconversion treating liquid for acidic phosphate coating
JPS5456038A (en) * 1977-10-12 1979-05-04 Nippon Paint Co Ltd Controlling method for acidic phosphate film forming liquid
JPS5910994B2 (ja) * 1980-12-26 1984-03-13 日本ペイント株式会社 リン酸亜鉛処理における薬剤補給方法
JPS6043491A (ja) * 1983-08-19 1985-03-08 Nippon Denso Co Ltd 鉄鋼表面に燐酸塩化成被膜を形成する方法
GB2153854A (en) * 1984-02-03 1985-08-29 Fosfacol S P A Automatically controlling the phosphate coating of metals
JPS6278826A (ja) * 1985-10-01 1987-04-11 Dainippon Screen Mfg Co Ltd 表面処理方法およびその装置
US4814197A (en) * 1986-10-31 1989-03-21 Kollmorgen Corporation Control of electroless plating baths
US5631845A (en) * 1995-10-10 1997-05-20 Ford Motor Company Method and system for controlling phosphate bath constituents
US20050129575A1 (en) * 2003-11-12 2005-06-16 Chemtronix Inc. Heavy metals monitoring apparatus
US10913610B2 (en) 2019-04-12 2021-02-09 Sst Systems, Inc. Conveyor roller turn

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764758C (de) * 1936-05-12 1952-07-10 James Harvey Gravell Verfahren zur Herstellung von phosphathaltigen UEberzuegen auf Metallen
FR835312A (fr) * 1937-03-23 1938-12-19 Parker Ste Continentale Procédé pour traiter superficiellement des articles métalliques
GB606382A (en) * 1946-01-14 1948-08-12 William Ivan Walters Improvements relating to the surface protection of metals
BE516935A (de) * 1952-01-16
US2898282A (en) * 1956-06-20 1959-08-04 Du Pont Electrolytic oxygen analysis
DE1069403B (de) * 1957-04-26 1959-11-19
US3178320A (en) * 1960-07-29 1965-04-13 John A Henricks Method and composition for the formation of smooth zinc phosphate coatings on steel
US3095121A (en) * 1960-10-20 1963-06-25 Amchem Prod Chemical feed control system
US3179581A (en) * 1961-02-01 1965-04-20 Seymour Z Lewin Electrochemical dosimeter
DE1176446B (de) * 1961-12-07 1964-08-20 Hoechst Ag Verfahren und Mittel zum Aufbringen von Phosphatschichten auf Metalloberflaechen
US3214301A (en) * 1962-01-05 1965-10-26 Allied Res Products Inc Automatic ph control of chemical treating baths
US3312189A (en) * 1963-12-24 1967-04-04 Hooker Chemical Corp Automatic solution control system

Also Published As

Publication number Publication date
BE668433A (de) 1965-12-16
NL139567B (nl) 1973-08-15
DE1274418B (de) 1968-08-01
NL6510798A (de) 1966-02-21
GB1113270A (en) 1968-05-08
DK129008B (da) 1974-08-05
ES316546A1 (es) 1966-05-01
BR6465104D0 (pt) 1973-08-09
FR1454007A (fr) 1966-07-22
SE333491B (de) 1971-03-15
US3401065A (en) 1968-09-10

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Legal Events

Date Code Title Description
PL Patent ceased