US1980961A - Method of coating iron or steel sheets with a protective metallic coating - Google Patents
Method of coating iron or steel sheets with a protective metallic coating Download PDFInfo
- Publication number
- US1980961A US1980961A US628164A US62816432A US1980961A US 1980961 A US1980961 A US 1980961A US 628164 A US628164 A US 628164A US 62816432 A US62816432 A US 62816432A US 1980961 A US1980961 A US 1980961A
- Authority
- US
- United States
- Prior art keywords
- coating
- iron
- steel sheets
- metallic coating
- protective metallic
- 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 - Lifetime
Links
- 238000000576 coating method Methods 0.000 title description 21
- 239000011248 coating agent Substances 0.000 title description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 16
- 229910052742 iron Inorganic materials 0.000 title description 8
- 229910000831 Steel Inorganic materials 0.000 title description 7
- 239000010959 steel Substances 0.000 title description 7
- 238000000034 method Methods 0.000 title description 3
- 230000001681 protective effect Effects 0.000 title description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- 229910000635 Spelter Inorganic materials 0.000 description 6
- 239000011253 protective coating Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
Images
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
- C23C2/003—Apparatus
- C23C2/0034—Details related to elements immersed in bath
- C23C2/00342—Moving elements, e.g. pumps or mixers
- C23C2/00344—Means for moving substrates, e.g. immersed rollers or immersed bearings
-
- 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
- C23C2/006—Pattern or selective deposits
- C23C2/0062—Pattern or selective deposits without pre-treatment of the material to be coated, e.g. using masking elements such as casings, shields, fixtures or blocking elements
Definitions
- This invention has reference to a new and improved method of coating iron or steel sheets with a protective metallic coating, the article so coated and the apparatus for coating.
- An ex- 5 ample of such a coating is zinc spelter.
- the invention has for its principal object the method of applying by wiping a protective metallic coating, as for example zinc spelter, to iron or steelsheets so as to provide such sheets with a lo heavier metallic coating on one side of the sheet than on the other side thereof and to the sheet so coated.
- a protective metallic coating as for example zinc spelter
- Such a sheet has considerable utility and an especial advantage when subjected to outdoor use, as for examplewhen used for roofing 1: purposes, as experience has demonstrated that metallic coated sheets, especially if coated with zinc spelter will rust on their outside or exposed surfaces sooner than they' will on the inside. Therefore, by providing such sheets with a heavy go protective coating on one side and a light protective coating on the other side, the heavier coated side can be used as the exposed side and give longer life thereto, resulting in greater economy in the use of such sheets.
- the invention has for a further object an improvement in the feed-out rolls of galvanized pots which make it possible to obtain a heavy coating on one side of iron or steel sheets and a lighter coating on the opposite side thereof.
- Fig. 1 is a detail sectional view of an apparatus embodying my invention by means of which it is possible to coat an iron or steel sheet with a heavy metallic coating on one side and with a lighter coating on the opposite side;
- Fig. 2 is a detail in plan showing improved feed-out rolls, whereby it is possible to coat an iron or steel sheet with a heavier metallic coating on one side thereof than on the opposite side,
- Fig. 3 is a detailsectional view showing an iron or steel sheet with a heavy metallic coating on one side thereof and a lighter coating on the opposite side. 4
- pot of the usual construction is designated 1 in which is placed in the usual manner, molten lead a on the surface of which floats the molten zinc b.
- 2 and 3 designate, respectively, the, feed-out rolls arranged to co-operate in the usual manner and between which the coated sheets 4 are directed,
- Practice will determine the number and depth of the grooves in each roll, in respect of each other, as well as the spacing of such grooves in each roll.
- the herein described method of coating iron or steel sheets with a protective metallic coating of greater thickness on one side face of the sheet than on the Opposite side which consists in passing the sheets through a metallic coating bath to deposit the coating on each of the opposite side faces of the sheet, and then in simultaneously applying the coating by means of a pair of grooved rollers, the grooves on one being greater in number than those of the other and engaging out.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
1,9so,9e1
Nov. 13, 1934.
W. H. SOMMER METHOD OF COATING IRON OR STEEL SHEETS WITH A PROTECTIVE METALLIC COATING Filed Aug. 10, 1932 Patented Nov. 13, 1934 1,980,961 METHOD OF COATING IRON OR STEEL SHEETS WITH A PROTECTIVE METALLIC COATING William H. Sommer, Peoria, 111., assignor, by mesne assignments, to The National City Bank of Cleveland, Cleveland, Ohio, and John A. Chapman, Chicago, Ill., trustees Application August 10, 1932, Serial No. 628,164
1 Claim..
This invention has reference to a new and improved method of coating iron or steel sheets with a protective metallic coating, the article so coated and the apparatus for coating. An ex- 5 ample of such a coating is zinc spelter.
The invention has for its principal object the method of applying by wiping a protective metallic coating, as for example zinc spelter, to iron or steelsheets so as to provide such sheets with a lo heavier metallic coating on one side of the sheet than on the other side thereof and to the sheet so coated. Such a sheet has considerable utility and an especial advantage when subjected to outdoor use, as for examplewhen used for roofing 1: purposes, as experience has demonstrated that metallic coated sheets, especially if coated with zinc spelter will rust on their outside or exposed surfaces sooner than they' will on the inside. Therefore, by providing such sheets with a heavy go protective coating on one side and a light protective coating on the other side, the heavier coated side can be used as the exposed side and give longer life thereto, resulting in greater economy in the use of such sheets.
The invention has for a further object an improvement in the feed-out rolls of galvanized pots which make it possible to obtain a heavy coating on one side of iron or steel sheets and a lighter coating on the opposite side thereof.
Further objects will more fully appear from the following description;
That the invention may be more fully understood reference is had to the accompanying drawing forming part of the description illustratwhich:
Fig. 1 is a detail sectional view of an apparatus embodying my invention by means of which it is possible to coat an iron or steel sheet with a heavy metallic coating on one side and with a lighter coating on the opposite side;
Fig. 2 is a detail in plan showing improved feed-out rolls, whereby it is possible to coat an iron or steel sheet with a heavier metallic coating on one side thereof than on the opposite side,
and,
Fig. 3 is a detailsectional view showing an iron or steel sheet with a heavy metallic coating on one side thereof and a lighter coating on the opposite side. 4
Like characters of reference denote corresponding parts throughout the figures.
In the drawing I have illustrated the use of the invention with zinc spelter wherein a galvanizing ing a preferred embodiment of the invention, in
pot of the usual construction is designated 1 in which is placed in the usual manner, molten lead a on the surface of which floats the molten zinc b. 2 and 3 designate, respectively, the, feed-out rolls arranged to co-operate in the usual manner and between which the coated sheets 4 are directed,
.as they leave the coating bath, as indicated in .iron 'or 'steel sheet than on the opposite side thereof, I provide the roll 2'with a predeterminate number of circular grooves 5, but of fewer number than in the roll 3 andin the roll 3 I provide a predeterminate' number of circular grooves 6 but of greater number than in the roll 2, somewhat as shown in Fig. 2. Practice will determine the number and depth of the grooves in each roll, in respect of each other, as well as the spacing of such grooves in each roll. To keep the grooves in the respective rolls clean to insure a proper application of the coating to the surfaces of the sheet, I provide the cleaners or scrapers 7 and 8 coacting with the grooves in the respective rolls 2 and 3, see Figs. 1 and 2.
While the invention is especially useful where the metallic coating is zinc spelter, there will be instances where other metallic coatings may be vfound equally useful and I, therefore, do not wish to be limited to zinc spelter.
What I claim is:--
The herein described method of coating iron or steel sheets with a protective metallic coating of greater thickness on one side face of the sheet than on the Opposite side, which consists in passing the sheets through a metallic coating bath to deposit the coating on each of the opposite side faces of the sheet, and then in simultaneously applying the coating by means of a pair of grooved rollers, the grooves on one being greater in number than those of the other and engaging out.
WILLIAM H. SOMMER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US628164A US1980961A (en) | 1932-08-10 | 1932-08-10 | Method of coating iron or steel sheets with a protective metallic coating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US628164A US1980961A (en) | 1932-08-10 | 1932-08-10 | Method of coating iron or steel sheets with a protective metallic coating |
Publications (1)
Publication Number | Publication Date |
---|---|
US1980961A true US1980961A (en) | 1934-11-13 |
Family
ID=24517741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US628164A Expired - Lifetime US1980961A (en) | 1932-08-10 | 1932-08-10 | Method of coating iron or steel sheets with a protective metallic coating |
Country Status (1)
Country | Link |
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US (1) | US1980961A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2577904A (en) * | 1948-02-03 | 1951-12-11 | Armco Steel Corp | Method for hot dip coating of metal strip |
US2742019A (en) * | 1952-12-31 | 1956-04-17 | Inland Steel Co | Metal coating apparatus |
US2797476A (en) * | 1952-06-17 | 1957-07-02 | Sendzimir Tadeusz | Process and apparatus for treating metallic strips |
US2875096A (en) * | 1955-08-19 | 1959-02-24 | Wheeling Steel Corp | Continuous hot dip galvanizing of metal strip |
US3083120A (en) * | 1960-06-28 | 1963-03-26 | United States Steel Corp | Method for making differentially coated galvanized steel sheet |
US3084663A (en) * | 1960-08-29 | 1963-04-09 | Champion Papers Inc | Doctor blade for coating apparatus |
US3112213A (en) * | 1959-12-28 | 1963-11-26 | Armco Steel Corp | Differentially coated galvanized strip |
DE1207756B (en) * | 1959-12-28 | 1965-12-23 | Armco Steel Corp | Iron sheet and strip galvanized in different thicknesses on both sides and process for its production |
US3260577A (en) * | 1961-12-20 | 1966-07-12 | Nat Steel Corp | Coated product and its manufacture |
US3369923A (en) * | 1964-12-14 | 1968-02-20 | Bethlehem Steel Corp | Method of producing heavy coatings by continuous galvanizing |
US3617414A (en) * | 1965-08-10 | 1971-11-02 | Mancar Trust | Process and apparatus for the manufacture of fiber glass reinforced plastic tubes and similar bodies according to the filament winding process |
-
1932
- 1932-08-10 US US628164A patent/US1980961A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2577904A (en) * | 1948-02-03 | 1951-12-11 | Armco Steel Corp | Method for hot dip coating of metal strip |
US2797476A (en) * | 1952-06-17 | 1957-07-02 | Sendzimir Tadeusz | Process and apparatus for treating metallic strips |
US2742019A (en) * | 1952-12-31 | 1956-04-17 | Inland Steel Co | Metal coating apparatus |
US2875096A (en) * | 1955-08-19 | 1959-02-24 | Wheeling Steel Corp | Continuous hot dip galvanizing of metal strip |
US3112213A (en) * | 1959-12-28 | 1963-11-26 | Armco Steel Corp | Differentially coated galvanized strip |
DE1207756B (en) * | 1959-12-28 | 1965-12-23 | Armco Steel Corp | Iron sheet and strip galvanized in different thicknesses on both sides and process for its production |
US3083120A (en) * | 1960-06-28 | 1963-03-26 | United States Steel Corp | Method for making differentially coated galvanized steel sheet |
US3084663A (en) * | 1960-08-29 | 1963-04-09 | Champion Papers Inc | Doctor blade for coating apparatus |
US3260577A (en) * | 1961-12-20 | 1966-07-12 | Nat Steel Corp | Coated product and its manufacture |
US3369923A (en) * | 1964-12-14 | 1968-02-20 | Bethlehem Steel Corp | Method of producing heavy coatings by continuous galvanizing |
US3617414A (en) * | 1965-08-10 | 1971-11-02 | Mancar Trust | Process and apparatus for the manufacture of fiber glass reinforced plastic tubes and similar bodies according to the filament winding process |
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