GB1339435A - Pretreatment of metal sheets which are coated after forming operation - Google Patents

Pretreatment of metal sheets which are coated after forming operation

Info

Publication number
GB1339435A
GB1339435A GB5718970A GB5718970A GB1339435A GB 1339435 A GB1339435 A GB 1339435A GB 5718970 A GB5718970 A GB 5718970A GB 5718970 A GB5718970 A GB 5718970A GB 1339435 A GB1339435 A GB 1339435A
Authority
GB
United Kingdom
Prior art keywords
soluble
water
copolymers
salts
cellulose
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
GB5718970A
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.)
Bayer AG
Original Assignee
Bayer AG
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
Priority claimed from DE19691960817 external-priority patent/DE1960817B2/en
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB1339435A publication Critical patent/GB1339435A/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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F15/00—Other methods of preventing corrosion or incrustation
    • 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

Abstract

1339435 Enamelling metals BAYER AG 2 Dec 1970 [4 Dec 1969 7 March 1970] 57189/70 Heading C1M [Also in Division B2] Metallic substrates are surface-treated (as defined), coupled with a first layer comprising a water-soluble, film-forming, organic polymer, shaped, and then provided with a firmly adherent protective layer e.g. of B-Ti white enamel. The surface treatment is one or more of the following: rough alkaline degreasing, fine electrolytic degreasing, rinsing, electrolytic pickling and electrolytic nickel coating. The first layer may be partially or completely removed before application of the protective layer. It may comprise in addition to the filmforming water-soluble, film-forming organic polymers at least one water-soluble polymer with a molecular weight of up to 2000. Suitable water-soluble film-forming polymers are polyethyleneoxide, polyvinyl alcohol or partially saponified polyvinyl acetates, polyvinyl pyrrolidone, polyacrylamides and copolymers which contain acrylamide e.g. copolymers with acrylic acid esters or acrylic acids, optionally as their salts, polyacrylic acid or polymethacrylic acid and their copolymers, optionally in the form of their salts, water-soluble cellulose derivatives such as methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, alginates and pectins, water-soluble copolymers formed by reacting copolymers of maleic anhydride e.g. with styrene, isobutylene or ethylene with decomposition of the anhydride group, the compounds being salts, amides or amide ammonium salts which contain carboxyl groups. The method may be used for application to steel sheets which may then be drawn or pressed. The first coating may be applied by brushing or spraying. The enamel preferably consists of in percentage by weight SiO 2 38; Al 2 O 3 0À5; B 2 O 3 21; alkali metal oxide 15; fluorine 2; TiO 2 19; Mg 0À5 and P 2 O 5 3.
GB5718970A 1969-12-04 1970-12-02 Pretreatment of metal sheets which are coated after forming operation Expired GB1339435A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19691960817 DE1960817B2 (en) 1969-12-04 1969-12-04 WITH A REMOVABLE, WATER-SOLUBLE PROTECTIVE LAYER CONTAINING ORGANIC POLYMERS, PROVIDED, DEFORMABLE METALLIC MATERIAL
DE19702010888 DE2010888A1 (en) 1969-12-04 1970-03-07 Pretreatment of metal sheets, which are provided with a coating after shaping

Publications (1)

Publication Number Publication Date
GB1339435A true GB1339435A (en) 1973-12-05

Family

ID=25758194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5718970A Expired GB1339435A (en) 1969-12-04 1970-12-02 Pretreatment of metal sheets which are coated after forming operation

Country Status (9)

Country Link
AT (1) AT306481B (en)
BE (1) BE759867A (en)
CH (1) CH561288A5 (en)
DE (1) DE2010888A1 (en)
ES (1) ES386166A1 (en)
FR (1) FR2072956A5 (en)
GB (1) GB1339435A (en)
NL (1) NL7017696A (en)
SE (1) SE363130B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118928A (en) * 1982-04-21 1983-11-09 Geoffrey Cooke Enamelling process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118928A (en) * 1982-04-21 1983-11-09 Geoffrey Cooke Enamelling process

Also Published As

Publication number Publication date
CH561288A5 (en) 1975-04-30
FR2072956A5 (en) 1971-09-24
BE759867A (en) 1971-06-04
ES386166A1 (en) 1973-11-16
DE2010888A1 (en) 1972-03-30
SE363130B (en) 1974-01-07
NL7017696A (en) 1971-06-08
AT306481B (en) 1973-04-10

Similar Documents

Publication Publication Date Title
US3696498A (en) Pretreatment of metal sheets which are coated after a forming operation
US4540736A (en) Temporary protective coating composition of ethylene and acrylic acid and a base
US5728233A (en) Surface treatment composition, surface treatment solution and surface treatment method for aluminum and its alloys
US5641542A (en) Chromium-free aluminum treatment
US2516008A (en) Composition and process for treating metal surfaces
GB1479638A (en) Processes for the treatment of metal surfaces
CA1199559A (en) Process for the treatment of aluminum surfaces
GB961220A (en) Process and solution for the after-treatment of phosphate coatings
US3850732A (en) Zirconium rinse for phosphate coated metal surfaces
GB1339435A (en) Pretreatment of metal sheets which are coated after forming operation
GB1115673A (en) Zinc-aluminum coated products and methods therefor
GB1283657A (en) Improvements in forming metal oxide coatings on flat glass
GB1498144A (en) Autodeposited coatings on metal surfaces
EP0389292B1 (en) Composition for temporary protection paint
US4295899A (en) Process for coating iron and steel
US3706124A (en) Process for the pre-treating of metal sheets which are provided with a coating following a forming operation
CN110205618B (en) Method for preparing high-hardness film layer on surface of magnesium alloy in short process
GB1281135A (en) Pretreatment of metal surfaces
EP0771368B1 (en) Process for treating the surface of aluminum sheet for cap manufacturing
GB1191700A (en) Coated Metalware
US3296235A (en) Copolymer of acrylamide and nu-alkyl acrylamide with a propellant in aerosol spray cans
US4509992A (en) Processes and compositions for the treatment of aluminum surfaces
CN104313587A (en) Formula of surface passivation brightener for aluminum alloy welding wire and using technology thereof
JP4000558B2 (en) Chrome-free metal surface treatment agent
CN109957805A (en) A kind of hardware surface preservative treatment technique

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee