GB1521966A

GB1521966A – Etching plating and enamelling metals
– Google Patents

GB1521966A – Etching plating and enamelling metals
– Google Patents
Etching plating and enamelling metals

Info

Publication number
GB1521966A

GB1521966A
GB3982774A
GB3982774A
GB1521966A
GB 1521966 A
GB1521966 A
GB 1521966A
GB 3982774 A
GB3982774 A
GB 3982774A
GB 3982774 A
GB3982774 A
GB 3982774A
GB 1521966 A
GB1521966 A
GB 1521966A
Authority
GB
United Kingdom
Prior art keywords
rinsed
electrolytically
steel
alkali
enamelling
Prior art date
1974-09-12
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
GB3982774A
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.)

Oxy Metal Industries Corp

Original Assignee
Oxy Metal Industries Corp
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.)
1974-09-12
Filing date
1974-09-12
Publication date
1978-08-23

1974-09-12
Application filed by Oxy Metal Industries Corp
filed
Critical
Oxy Metal Industries Corp

1974-09-12
Priority to GB3982774A
priority
Critical
patent/GB1521966A/en

1975-09-08
Priority to IT5124675A
priority
patent/IT1047141B/en

1975-09-10
Priority to FR7527718A
priority
patent/FR2284661A1/en

1975-09-12
Priority to DE19752540797
priority
patent/DE2540797A1/en

1978-08-23
Publication of GB1521966A
publication
Critical
patent/GB1521966A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS

C23G1/00—Cleaning or pickling metallic material with solutions or molten salts

C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions

C23G1/08—Iron or steel

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

C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS

C23D3/00—Chemical treatment of the metal surfaces prior to coating

C—CHEMISTRY; METALLURGY

C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR

C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR

C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling

C25F1/02—Pickling; Descaling

C25F1/04—Pickling; Descaling in solution

C25F1/06—Iron or steel

Abstract

1521966 Electrolytic etching of steel; Ni plating; enamelling OXY METAL INDUSTRIES CORP 11 Sept 1975 [12 Sept 1974] 39827/74 Heading C7B A steel workpiece is made the anode and is immersed in a composition comprising (A) an organic compound containing an alcoholic hydroxyl group and aliphatic unsaturation (B) an acid to etch the steel, and optionally (C) one or more surface active perfluorocarbon sulphonic acids or their salts or one or more fluoro carbon sulphonic or sulphuric acid compounds of Formula H(CF 2 CF 2 ) x (CH 2 ) y ZM where x # 2, y = 1-3, M is a cation and Z is -SO 3 – or -OSO 3 -, or 4-dodecyl-3,3′-disulpho-1,1′-diphenyl ether, and a D.C. current is passed, using insoluble cathodes, e.g. of Pb or PbSn, at a CD of 1-100 A/ft2 to remove 0À1-10 g/ft2 of metal from the workpiece. Compound (B) may be H 2 SO 4 , HCl, HNO 3 , or H 3 PO 4 in amount 20-600 g/l. Compounds (A) mentioned, and preferred amounts, are: allyl alcohol 0À4 to 4 g/l, but-2-ene-1-4-diol 0À15 to 2 g/l, propargyl alcohol 0À05 to 1 g/l, and but-2-yne-1,4- diol 0À02 to 1 g/l. The bath may also contain R(X) SO where X=R’ or OM or OH, where R=R’=an organic radical, e.g. Na benzene sulphinate or dimethyl sulphoxide, e.g. in amount 0À5-10 g/l. In an enamelling process, steel is alkali cleaned, rinsed, alkali-cleaned electrolytically, rinsed, etched electrolytically as above, rinsed, desmolted electrolytically in alkali, rinsed and neutralized in H 2 SO 4 , electrolytically Ni-plated from a bath of 80 g/l NiSO 4 À7H 2 O, 10 g/l NH 4 Cl, 20 g/l MgSO 4 . 7H 2 O and 5 g/l H 3 BO 3 at pH 5À3 using Ni anodes at 2 A/ft2 for 2 minutes, immersed in NaNO 2 solution, and then enamelled; an alternative Ni bath contains 70 g/l NiSO 4 .6À5H 2 O, 15 g/l NaCl, 12 g/l MgSO 4 , 7 g/l H 3 BO 3 ; a CD of 2 A/ft2at 20‹C for 2 minutes at pH 5À3-5À7 is used.

GB3982774A
1974-09-12
1974-09-12
Etching plating and enamelling metals

Expired

GB1521966A
(en)

Priority Applications (4)

Application Number
Priority Date
Filing Date
Title

GB3982774A

GB1521966A
(en)

1974-09-12
1974-09-12
Etching plating and enamelling metals

IT5124675A

IT1047141B
(en)

1974-09-12
1975-09-08

PROCEDURE FOR COATING METALS WITH NON-METALLIC PROTECTIVE FILMS COMPOSITION USED AND PRODUCT OBTAINED

FR7527718A

FR2284661A1
(en)

1974-09-12
1975-09-10

NEW COMPOSITION FOR METAL PICKLING AND ITS APPLICATION TO THE PRETREATMENT OF METAL PARTS

DE19752540797

DE2540797A1
(en)

1974-09-12
1975-09-12

STAINING AGENTS AND THEIR USE FOR THE MANUFACTURE OF PROTECTIVE COVERS ON STEEL

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB3982774A

GB1521966A
(en)

1974-09-12
1974-09-12
Etching plating and enamelling metals

Publications (1)

Publication Number
Publication Date

GB1521966A
true

GB1521966A
(en)

1978-08-23

Family
ID=10411720
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3982774A
Expired

GB1521966A
(en)

1974-09-12
1974-09-12
Etching plating and enamelling metals

Country Status (4)

Country
Link

DE
(1)

DE2540797A1
(en)

FR
(1)

FR2284661A1
(en)

GB
(1)

GB1521966A
(en)

IT
(1)

IT1047141B
(en)

Cited By (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

EP0047895A2
(en)

*

1980-09-15
1982-03-24
Shipley Company Inc.
Novel stripping composition and method of using same

WO2002006566A1
(en)

*

2000-07-19
2002-01-24
Dr.-Ing. Max Schlötter Gmbh & Co. Kg
Method for coating components consisting of hardened steel or cast iron with a zinc-nickel alloy

DE102019204225A1
(en)

*

2019-03-27
2020-10-01
Robert Bosch Gmbh

Pretreatment process for pretreating components prior to electroplating

1974

1974-09-12
GB
GB3982774A
patent/GB1521966A/en
not_active
Expired

1975

1975-09-08
IT
IT5124675A
patent/IT1047141B/en
active

1975-09-10
FR
FR7527718A
patent/FR2284661A1/en
active
Granted

1975-09-12
DE
DE19752540797
patent/DE2540797A1/en
not_active
Withdrawn

Cited By (4)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

EP0047895A2
(en)

*

1980-09-15
1982-03-24
Shipley Company Inc.
Novel stripping composition and method of using same

EP0047895A3
(en)

*

1980-09-15
1982-07-14
Shipley Company Inc.
Novel stripping composition and method of using same

WO2002006566A1
(en)

*

2000-07-19
2002-01-24
Dr.-Ing. Max Schlötter Gmbh & Co. Kg
Method for coating components consisting of hardened steel or cast iron with a zinc-nickel alloy

DE102019204225A1
(en)

*

2019-03-27
2020-10-01
Robert Bosch Gmbh

Pretreatment process for pretreating components prior to electroplating

Also Published As

Publication number
Publication date

DE2540797A1
(en)

1976-03-25

FR2284661B1
(en)

1980-01-11

FR2284661A1
(en)

1976-04-09

IT1047141B
(en)

1980-09-10

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Legal Events

Date
Code
Title
Description

1978-12-13
PS
Patent sealed

1983-04-13
PCNP
Patent ceased through non-payment of renewal fee

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