WO1993023589A1 - Verfahren zum emailbeschichten von stahlbändern - Google Patents
Verfahren zum emailbeschichten von stahlbändern Download PDFInfo
- Publication number
- WO1993023589A1 WO1993023589A1 PCT/DE1993/000395 DE9300395W WO9323589A1 WO 1993023589 A1 WO1993023589 A1 WO 1993023589A1 DE 9300395 W DE9300395 W DE 9300395W WO 9323589 A1 WO9323589 A1 WO 9323589A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- annealing treatment
- coated
- coating
- treatment
- strips
- Prior art date
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
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/04—Coating with enamels or vitreous layers by dry methods
Definitions
- the invention relates to a method for enamel coating by means of powder coating and subsequent baking of endless steel strips finished by annealing.
- DE-PS 35 36 040 describes a method for coating on both sides with a base enamel layer and a cover enamel layer to be applied thereon at least on one side of tapes guided over rolls in a non-contact continuous pass through baking ovens with heating and Cooling zones are known, in which the strips for heat treatment after the coating are inserted vertically into the stoving furnaces and guided vertically through the stoving furnaces.
- a slurry or a powder for the enamel layer to be baked is applied to the supplied cold steel strips, which may have been refined or even coated by annealing in previous processes.
- the steel strip with the enamel layer is then heated in the subsequent baking oven branded at the same time.
- Systems of this type are only designed for relatively small output quantities.
- the object of the invention is to propose a method of the type mentioned at the outset in which high output quantities can be achieved in corresponding systems with a comparatively low energy requirement, systems of the same essence being intended to be used for such a coating.
- the invention makes use of the fact that steel strips to be refined have to be subjected to an annealing treatment at a temperature which represents a suitable temperature level in the subsequent enamel coating.
- the endless steel strips refined by annealing treatment are therefore coated in the same heat in the immediate connection with corresponding powder and heat-treated in a subsequent baking station. There is therefore no need to heat the steel strip to the necessary treatment level, so that the energy requirement therefore significantly accelerates the process.
- Such a method according to the invention makes it possible to use plants of the same essence, for example hot-dip galvanizing or aluminizing plants and also continuous annealing plants, in which a coating station with subsequent baking treatment only has to be inserted behind the annealing treatment station. It can therefore Existing plants with relatively few additional devices can be used to carry out the method, whereby the usability of such a plant can be considerably higher and the total costs for the finished strip coated with enamel can be reduced.
- Enamel-coated refined steel strips will increasingly replace the conventional plastic-coated steel strips, which will only be used to a small extent in the future due to their disadvantages in the case of fires and recycling.
- the invention also includes the proposal to first coat the steel strips with non-ferrous metals or corresponding alloys after the annealing treatment.
- This intermediate coating also takes place in the same heat. It sometimes has the advantage that the enamel coating is carried out only on one side, the basic coating can be omitted, and additional anodic corrosion protection is achieved when using, for example, aluminum or aluminum alloy coatings.
- the powder coating can preferably be carried out electrostatically.
- the stoving treatment in vertical ovens is advantageous because they are cheap to accommodate because of the space available in such systems.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Coating With Molten Metal (AREA)
- Drying Of Solid Materials (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93909357A EP0640152B1 (de) | 1992-05-16 | 1993-04-30 | Verfahren zum emailbeschichten von stahlbändern |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4216282.3 | 1992-05-16 | ||
DE4216282A DE4216282C1 (de) | 1992-05-16 | 1992-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993023589A1 true WO1993023589A1 (de) | 1993-11-25 |
Family
ID=6459089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1993/000395 WO1993023589A1 (de) | 1992-05-16 | 1993-04-30 | Verfahren zum emailbeschichten von stahlbändern |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0640152B1 (de) |
AT (1) | ATE131219T1 (de) |
AU (1) | AU3979693A (de) |
DE (1) | DE4216282C1 (de) |
ES (1) | ES2080617T3 (de) |
WO (1) | WO1993023589A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4328021C2 (de) * | 1993-08-20 | 1995-05-24 | Hans Josef May | Verfahren zur kontinuierlichen ein- oder beidseitigen Beschichtung von Metallbändern mit Email- oder Kunststoffpulvern sowie Vorrichtung zur Durchführung eines solchen Verfahrens |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1168239A (en) * | 1968-08-03 | 1969-10-22 | Robertson Co H H | Porcelain Enamelled Aluminized Steel |
DE1302490B (de) * | 1961-02-02 | 1971-01-21 | ||
BE790958A (en) * | 1972-11-03 | 1973-03-01 | Centre Rech Metallurgique | Continuously enamelling metal sheet - by applying aluminium to both sides then applying the enamel |
FR2418040A1 (fr) * | 1978-02-22 | 1979-09-21 | Foseco Int | Marquage de metaux chauds |
FR2495190A1 (fr) * | 1980-12-01 | 1982-06-04 | Dueker Eisenwerk | Procede pour l'application d'un revetement d'email protecteur resistant sur des corps de fonderie ductiles |
FR2588278A1 (fr) * | 1985-10-09 | 1987-04-10 | Schnettler Roland | Procede pour emailler les deux faces d'une bande metallique |
-
1992
- 1992-05-16 DE DE4216282A patent/DE4216282C1/de not_active Expired - Fee Related
-
1993
- 1993-04-30 AU AU39796/93A patent/AU3979693A/en not_active Abandoned
- 1993-04-30 ES ES93909357T patent/ES2080617T3/es not_active Expired - Lifetime
- 1993-04-30 EP EP93909357A patent/EP0640152B1/de not_active Expired - Lifetime
- 1993-04-30 WO PCT/DE1993/000395 patent/WO1993023589A1/de active IP Right Grant
- 1993-04-30 AT AT93909357T patent/ATE131219T1/de not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1302490B (de) * | 1961-02-02 | 1971-01-21 | ||
GB1168239A (en) * | 1968-08-03 | 1969-10-22 | Robertson Co H H | Porcelain Enamelled Aluminized Steel |
BE790958A (en) * | 1972-11-03 | 1973-03-01 | Centre Rech Metallurgique | Continuously enamelling metal sheet - by applying aluminium to both sides then applying the enamel |
FR2418040A1 (fr) * | 1978-02-22 | 1979-09-21 | Foseco Int | Marquage de metaux chauds |
FR2495190A1 (fr) * | 1980-12-01 | 1982-06-04 | Dueker Eisenwerk | Procede pour l'application d'un revetement d'email protecteur resistant sur des corps de fonderie ductiles |
FR2588278A1 (fr) * | 1985-10-09 | 1987-04-10 | Schnettler Roland | Procede pour emailler les deux faces d'une bande metallique |
Also Published As
Publication number | Publication date |
---|---|
EP0640152A1 (de) | 1995-03-01 |
EP0640152B1 (de) | 1995-12-06 |
ATE131219T1 (de) | 1995-12-15 |
DE4216282C1 (de) | 1993-06-09 |
AU3979693A (en) | 1993-12-13 |
ES2080617T3 (es) | 1996-02-01 |
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