ZA872715B - Hot dip aluminium coated chromium alloy steel - Google Patents

Hot dip aluminium coated chromium alloy steel

Info

Publication number: ZA872715B
Authority: ZA; South Africa
Prior art keywords: hot dip; chromium alloy; steel; alloy steel; aluminium coated
Prior art date: 1986-05-20

Application number

ZA872715A

Other languages

English (en)

Inventor

Farrell M Kilbane

M Kilbane Farrell

Richard A Coleman

A Coleman Richard

Frank C Dunbar

C Dunbar Frank

Alan F Gibson

F Gibson Alan

Original Assignee

Armco Inc

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.)

1986-05-20

Filing date

1987-04-15

Publication date

1987-12-30

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25345026&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA872715(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1987-04-15 Application filed by Armco Inc filed Critical Armco Inc

1987-12-30 Publication of ZA872715B publication Critical patent/ZA872715B/xx

Links

229910000831 Steel Inorganic materials 0.000 title abstract 5
239000010959 steel Substances 0.000 title abstract 5
229910052782 aluminium Inorganic materials 0.000 title abstract 3
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 3
229910000599 Cr alloy Inorganic materials 0.000 title abstract 2
239000000788 chromium alloy Substances 0.000 title abstract 2
239000004411 aluminium Substances 0.000 title 1
239000011248 coating agent Substances 0.000 abstract 2
238000000576 coating method Methods 0.000 abstract 2
229910052751 metal Inorganic materials 0.000 abstract 2
239000002184 metal Substances 0.000 abstract 2
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
239000011247 coating layer Substances 0.000 abstract 1
239000000356 contaminant Substances 0.000 abstract 1
229910052739 hydrogen Inorganic materials 0.000 abstract 1
239000001257 hydrogen Substances 0.000 abstract 1

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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
- C23C2/18—Removing excess of molten coatings from elongated material
- C23C2/20—Strips; Plates
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Chemical Kinetics & Catalysis (AREA)
Coating With Molten Metal (AREA)
Laminated Bodies (AREA)
Superconductors And Manufacturing Methods Therefor (AREA)
Chemical Treatment Of Metals (AREA)
Photoreceptors In Electrophotography (AREA)
Treatment Of Steel In Its Molten State (AREA)
Application Of Or Painting With Fluid Materials (AREA)

ZA872715A 1986-05-20 1987-04-15 Hot dip aluminium coated chromium alloy steel ZA872715B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/865,238 US4675214A (en)	1986-05-20	1986-05-20	Hot dip aluminum coated chromium alloy steel

Publications (1)

Publication Number	Publication Date
ZA872715B true ZA872715B (en)	1987-12-30

Family

ID=25345026

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA872715A ZA872715B (en)	1986-05-20	1987-04-15	Hot dip aluminium coated chromium alloy steel

Country Status (16)

Country	Link
US (1)	US4675214A (de)
EP (1)	EP0246418B1 (de)
JP (1)	JPH062932B2 (de)
KR (1)	KR910004609B1 (de)
CN (1)	CN1016798B (de)
AT (1)	ATE71670T1 (de)
AU (1)	AU592437B2 (de)
BR (1)	BR8701764A (de)
CA (1)	CA1243244A (de)
DE (1)	DE3775979D1 (de)
ES (1)	ES2027979T3 (de)
FI (1)	FI83671C (de)
IN (1)	IN167354B (de)
NO (1)	NO173454C (de)
YU (1)	YU45414B (de)
ZA (1)	ZA872715B (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4686155A (en) *	1985-06-04	1987-08-11	Armco Inc.	Oxidation resistant ferrous base foil and method therefor
US4800135A (en) *	1986-05-20	1989-01-24	Armco Inc.	Hot dip aluminum coated chromium alloy steel
US4883723A (en) *	1986-05-20	1989-11-28	Armco Inc.	Hot dip aluminum coated chromium alloy steel
DE3844601C2 (de) *	1987-07-27	1993-03-11	Nippon Steel Corp., Tokio/Tokyo, Jp
US5023113A (en) *	1988-08-29	1991-06-11	Armco Steel Company, L.P.	Hot dip aluminum coated chromium alloy steel
US5116645A (en) *	1988-08-29	1992-05-26	Armco Steel Company, L.P.	Hot dip aluminum coated chromium alloy steel
JPH0328359A (ja) *	1989-06-23	1991-02-06	Kawasaki Steel Corp	溶融アルミニウムめっきクロム含有鋼板の製造方法
AU622697B2 (en) *	1989-08-08	1992-04-16	Ak Steel Corporation	Hot dip aluminum coated chromium alloy steel
FR2664617B1 (fr) *	1990-07-16	1993-08-06	Lorraine Laminage	Procede de revetement d'aluminium par trempe a chaud d'une bande d'acier et bande d'acier obtenue par ce procede.
US5472739A (en) *	1990-09-20	1995-12-05	Totoku Electric Co., Ltd.	Process of producing a hot dipped wire from a base wire, with the absence of iron-based, iron oxide-based and iron hydroxide-based minute particles on surfaces of the base wire
US5472740A (en) *	1990-10-11	1995-12-05	Totoku Electric Co., Ltd.	Process of producing a hot dipped wire from a base wire, with the absence of iron-based, iron oxide-based and iron hydroxide-based minute particles on surfaces of the base wire
US5175026A (en) *	1991-07-16	1992-12-29	Wheeling-Nisshin, Inc.	Method for hot-dip coating chromium-bearing steel
US5447754A (en) *	1994-04-19	1995-09-05	Armco Inc.	Aluminized steel alloys containing chromium and method for producing same
JPH08331738A (ja) *	1995-05-31	1996-12-13	Nasu Denki Tekko Kk	腕金取り付け具
WO2006068169A1 (ja) *	2004-12-21	2006-06-29	Kabushiki Kaisha Kobe Seiko Sho	溶融亜鉛めっき方法及び溶融亜鉛めっき設備
DE102010037254B4 (de)	2010-08-31	2012-05-24	Thyssenkrupp Steel Europe Ag	Verfahren zum Schmelztauchbeschichten eines Stahlflachprodukts
WO2012037242A2 (en) *	2010-09-14	2012-03-22	E. I. Du Pont De Nemours And Company	Glass-coated flexible substrates for photovoltaic cells
DE102012101018B3 (de)	2012-02-08	2013-03-14	Thyssenkrupp Nirosta Gmbh	Verfahren zum Schmelztauchbeschichten eines Stahlflachprodukts
CN112877607B (zh) *	2019-11-29	2022-06-24	宝山钢铁股份有限公司	一种高强度低合金热镀铝合金钢带及其制造方法

Family Cites Families (26)

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US2082622A (en) *	1933-02-25	1937-06-01	Colin G Fink	Daluminum coated metal and process for producing the same
US2197622A (en) *	1937-04-22	1940-04-16	American Rolling Mill Co	Process for galvanizing sheet metal
US2570906A (en) *	1946-07-31	1951-10-09	Alferieff Michel	Process for coating metallic objects with other metals
US3396048A (en) *	1964-10-20	1968-08-06	Olin Mathieson	Process for aluminizing metal
US3320085A (en) *	1965-03-19	1967-05-16	Selas Corp Of America	Galvanizing
US3378359A (en) *	1967-01-31	1968-04-16	Standard Oil Co	Method of protecting austenitic stainless steel subject to stress corrosion
NL141933B (nl) *	1970-04-24	1974-04-16	Bekaert Sa Nv	Werkwijze voor het bekleden van een langgerekt metalen voorwerp met metaal, alsmede voorwerpen bekleed volgens deze werkwijze.
US3779056A (en) *	1971-12-28	1973-12-18	Bethlehem Steel Corp	Method of coating steel wire with aluminum
SE393403B (sv) *	1972-08-09	1977-05-09	Bethlehem Steel Corp	Sett att overdraga ytan av en jernstreng med en al-zn-legering
US4053663A (en) *	1972-08-09	1977-10-11	Bethlehem Steel Corporation	Method of treating ferrous strand for coating with aluminum-zinc alloys
US3907611A (en) *	1972-11-10	1975-09-23	Toyo Kogyo Co	Method for making ferrous metal having highly improved resistances to corrosion at elevated temperatures and to oxidization
SE404065B (sv) *	1972-11-30	1978-09-18	Atomic Energy Authority Uk	Apparat for katalytisk rening av avgaser samt katalysator
JPS5233579B2 (de) *	1972-12-25	1977-08-29
JPS4999982A (de) *	1973-01-31	1974-09-20
US3925579A (en) *	1974-05-24	1975-12-09	Armco Steel Corp	Method of coating low alloy steels
JPS524491A (en) *	1975-06-30	1977-01-13	Hitachi Zosen Corp	Method of preparing catalyst for removing nox by selective catalytic r eduction with ammonia
JPS5263123A (en) *	1975-11-19	1977-05-25	Toyo Kogyo Co	Production method of reactor material having excellent deformation resistance
JPS5281041A (en) *	1975-12-29	1977-07-07	Komatsu Mfg Co Ltd	Device for controlling tandem torch type automatic welding machine
JPS53130239A (en) *	1977-04-20	1978-11-14	Toyo Kogyo Co	Al diffusion osmosis method
US4155235A (en) *	1977-07-13	1979-05-22	Armco Steel Corporation	Production of heavy pure aluminum coatings on small diameter tubing
CA1083437A (en) *	1977-12-28	1980-08-12	Laurence B. Caldwell	Mehtod of treating ferrous strand by hot dip coating procedure
JPS5856026B2 (ja) *	1979-01-20	1983-12-13	日立造船株式会社	アルミニウム被覆ステンレス鋼の製造方法
JPS6043476A (ja) *	1983-08-17	1985-03-08	Nippon Steel Corp	連続溶融アルミメツキ法
US4535034A (en) *	1983-12-30	1985-08-13	Nippon Steel Corporation	High Al heat-resistant alloy steels having Al coating thereon
JPS60245727A (ja) *	1984-05-19	1985-12-05	Nippon Steel Corp	溶融アルミニウムメツキ鋼板の製造法
US4557953A (en) *	1984-07-30	1985-12-10	Armco Inc.	Process for controlling snout zinc vapor in a hot dip zinc based coating on a ferrous base metal strip

1986
- 1986-05-20 US US06/865,238 patent/US4675214A/en not_active Expired - Lifetime
1987
- 1987-02-25 CA CA000530559A patent/CA1243244A/en not_active Expired
- 1987-03-19 IN IN221/CAL/87A patent/IN167354B/en unknown
- 1987-03-20 DE DE8787104098T patent/DE3775979D1/de not_active Expired - Fee Related
- 1987-03-20 ES ES198787104098T patent/ES2027979T3/es not_active Expired - Lifetime
- 1987-03-20 EP EP87104098A patent/EP0246418B1/de not_active Expired - Lifetime
- 1987-03-20 AT AT87104098T patent/ATE71670T1/de not_active IP Right Cessation
- 1987-03-23 NO NO871197A patent/NO173454C/no not_active IP Right Cessation
- 1987-04-07 YU YU618/87A patent/YU45414B/xx unknown
- 1987-04-08 JP JP62084929A patent/JPH062932B2/ja not_active Expired - Fee Related
- 1987-04-13 BR BR8701764A patent/BR8701764A/pt not_active IP Right Cessation
- 1987-04-15 ZA ZA872715A patent/ZA872715B/xx unknown
- 1987-05-14 AU AU72930/87A patent/AU592437B2/en not_active Expired
- 1987-05-18 FI FI872176A patent/FI83671C/fi not_active IP Right Cessation
- 1987-05-19 KR KR1019870004923A patent/KR910004609B1/ko not_active IP Right Cessation
- 1987-05-20 CN CN87103764A patent/CN1016798B/zh not_active Expired

Also Published As

Publication number	Publication date
CN87103764A (zh)	1987-12-23
FI83671B (fi)	1991-04-30
EP0246418B1 (de)	1992-01-15
NO173454B (no)	1993-09-06
FI83671C (fi)	1991-08-12
NO871197D0 (no)	1987-03-23
AU592437B2 (en)	1990-01-11
FI872176A (fi)	1987-11-21
CN1016798B (zh)	1992-05-27
BR8701764A (pt)	1988-02-09
KR910004609B1 (ko)	1991-07-08
YU45414B (en)	1992-05-28
DE3775979D1 (de)	1992-02-27
FI872176A0 (fi)	1987-05-18
KR870011270A (ko)	1987-12-22
NO871197L (no)	1987-11-23
NO173454C (no)	1993-12-15
US4675214A (en)	1987-06-23
ES2027979T3 (es)	1992-07-01
IN167354B (de)	1990-10-13
JPH062932B2 (ja)	1994-01-12
EP0246418A3 (en)	1989-02-08
YU61887A (en)	1988-12-31
EP0246418A2 (de)	1987-11-25
CA1243244A (en)	1988-10-18
JPS62274060A (ja)	1987-11-28
AU7293087A (en)	1987-11-26
ATE71670T1 (de)	1992-02-15

Publication	Publication Date	Title
EP0246418A3 (en)	1989-02-08	Hot dip aluminium coated chromium alloy steel
CA2360633A1 (en)	2000-08-10	Method of treating metals using amino silanes and multi-silyl-functional silanes in admixture
NZ503269A (en)	2001-03-30	Composition containing hydrolysed aminosilane and a fluorine-containing inorganic compound
TW374096B (en)	1999-11-11	Process for hot dip-coating a steel material with a molten aluminum alloy according to an one-stage metal alloy coating method using a flux
DE3376987D1 (en)	1988-07-14	A method of coating a metal substrate with a protective aluminium-silicon coating, a metal substrate having the coating, and the use of the coated metal substrate
DE3562783D1 (en)	1988-06-23	Process for controlling snout zinc vapor in a hot dip zinc based coating on a ferrous base metal strip
IL129673A0 (en)	2000-02-29	Method of preventing corrosion of metal sheet using vinyl silanes
AR245228A1 (es)	1993-12-30	Metodo mejorado para preparar una tira ferritica recubierta con aluminio por inmersion continua en caliente.
DE3568064D1 (en)	1989-03-09	Process for controlling zinc vapor in a finishing process for a hot dip zinc based coating on a ferrous base metal strip
GR3032528T3 (en)	2000-05-31	Surface treatment
GB9008942D0 (en)	1990-06-20	Method of enhancing the ductility of aluminium-zinc alloy coatings on steel strip
FR2502189B1 (fr)	1985-06-28	Dispositif de depot galvanique d'un revetement metallique unilateral sur un feuillard metallique, en particulier, un feuillard d'acier
FR2632975B1 (fr)	1990-11-16	Installation d'application d'un revetement protecteur sur des articles par immersion dans un metal fondu
GB1533193A (en)	1978-11-22	Continuous hot-dip coating of metal strip
JPS5747860A (en)	1982-03-18	Anticorrosive coat for molten aluminum
Richards et al.	1994	Analysis of galvanized coatings
Neubert et al.	1983	Possibilities for the control of the thickness of the zinc layer on hot galvanized drawn steel wires.
Haaser	1985	Process and Device for Producing a Galvanized Steel Sheet or Strip Not Coated by Pure Zinc on at Least One Surface
ES8307021A1 (es)	1983-07-01	Aparato para producir una banda continua metalica de base ferrosa revestida en un lado solamente con un metal de revestimiento.
Borisova et al.	1984	Reaction of Protective Coatings on Foundry Process Equipment With Silumin Melts
Carey et al.	1995	Coated substrate
DK0848076T3 (da)	2001-11-12	Fremgangsmåde til metalbelægning af en stålplade ved neddypning og galvaniseret eller aluminiumbelagt stålplade opnået ved fremgangsmåden
SE8404761D0 (sv)	1984-09-24	Serbinskis metod for minskning av slitaget pa aluminium (a1) och dess legeringar
ZA975665B (en)	1998-01-23	Process and plant for electrolytically coating the surface of a roll, for the continuous casting of thin metal strip, with a metal layer.