GB803924A - Method and apparatus for cleansing and phosphating metal surfaces - Google Patents

Method and apparatus for cleansing and phosphating metal surfaces

Info

Publication number
GB803924A
GB803924A GB1912256A GB1912256A GB803924A GB 803924 A GB803924 A GB 803924A GB 1912256 A GB1912256 A GB 1912256A GB 1912256 A GB1912256 A GB 1912256A GB 803924 A GB803924 A GB 803924A
Authority
GB
United Kingdom
Prior art keywords
steam
conduit
agent
phosphating
ethers
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
GB1912256A
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.)
HOWARD RAYMOND NEILSON
Original Assignee
HOWARD RAYMOND NEILSON
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 HOWARD RAYMOND NEILSON filed Critical HOWARD RAYMOND NEILSON
Priority to GB1912256A priority Critical patent/GB803924A/en
Publication of GB803924A publication Critical patent/GB803924A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C22/76—Applying the liquid by spraying

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)

Abstract

803,924. Cleaning and phosphating metals. NEILSON, H. R. June 20, 1956, No. 19122/56. Class 82(2) In a method of cleaning and phosphating a metal surface, steam with or without hot water is ejected through a nozzle and directed over the metal surface, said steam having injected into it before the point of discharge a treating agent containing both a phosphating agent and a cleaning agent compatible therewith. The phosphating agent is preferably a monophosphate of ammonium, sodium or potassium, and the cleaning agent is preferably a watersoluble oil solvent and may be selected from the ethers of ethylene glycol; di-, tri-, and tetra-ethylene glycol and their ethers; the methyl and propyl ethers of propylene glycol; and the ethers of di- and tripropylene glycol: the treating agent may also comprise molybdic acid or an alkali metal salt thereof, and a surface-activating agent. In the apparatus shown, the source of steam (and water) is either water heater and steam generator A or steam pipe. X leading from factory boilers, said steam being ejected from nozzle G of gun K after passage through conduit F, F<SP>3</SP>, F<SP>2</SP>. Treating agent contained in pressurized tank D is injected into said conduit at inlet 2 via line L<SP>3</SP>. The phosphate coating thus produced is preferably subjected to treatment with chromic acid (which may contain phosphoric acid) from tank E, this acid being similarly injected into said conduit at inlet 2<SP>A</SP>. In an alternative embodiment, conduit F derives from a mixing tank which is fed from a steam line and cold water line: the treating agents may then be injected into said 'conduit or into the water line prior to mixing.
GB1912256A 1956-06-20 1956-06-20 Method and apparatus for cleansing and phosphating metal surfaces Expired GB803924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1912256A GB803924A (en) 1956-06-20 1956-06-20 Method and apparatus for cleansing and phosphating metal surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1912256A GB803924A (en) 1956-06-20 1956-06-20 Method and apparatus for cleansing and phosphating metal surfaces

Publications (1)

Publication Number Publication Date
GB803924A true GB803924A (en) 1958-11-05

Family

ID=10124118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1912256A Expired GB803924A (en) 1956-06-20 1956-06-20 Method and apparatus for cleansing and phosphating metal surfaces

Country Status (1)

Country Link
GB (1) GB803924A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266934A (en) * 1962-12-04 1966-08-16 John R Alexander Removal of contaminants from interiors of enclosures
US3297481A (en) * 1961-06-19 1967-01-10 Purex Corp Ltd Cleaning and descaling process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297481A (en) * 1961-06-19 1967-01-10 Purex Corp Ltd Cleaning and descaling process
US3266934A (en) * 1962-12-04 1966-08-16 John R Alexander Removal of contaminants from interiors of enclosures

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