US1242532A - Process of tinning metal plates and other articles. - Google Patents

Process of tinning metal plates and other articles. Download PDF

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Publication number
US1242532A
US1242532A US9750716A US9750716A US1242532A US 1242532 A US1242532 A US 1242532A US 9750716 A US9750716 A US 9750716A US 9750716 A US9750716 A US 9750716A US 1242532 A US1242532 A US 1242532A
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articles
metal plates
tin
tinning
oil
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US9750716A
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Carl Dreymann
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    • 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
    • C23C2/08—Tin or alloys based thereon

Definitions

  • the oil used is a glycerid or ester of a saturated fatty acid as for example oleo-stearin, all kinds of hydrogenated oils and fats, and
  • FIG. 1 shows diagrammatically a tank or vat A containing molten tin B.
  • the vessel is di- 1ivided by a partition C which terminates thereby dividing the vesabove the bottom,
  • partment is a body of glycerid or other ester F, and in the former. a layer G composed of the usual flux, such as ammonium chlorid and zinc chlorid.
  • the tin plate is equal in every respect to that produced by the palm-oil process, with the important advantage that my process has a much larger output for the same Y amount of bil consumed. In other words, my process is more economical. Experience has shown that the output is'at least twenty-- five per cent. greater with the same con- .sumption of oil.
  • the step comprising passing theg plate through a bath of molten tin and out through a layer consisting essentially of an ester of a saturated fatty acid, floating on the molten tin.

Description

C. DREYMANN.
PROCESS OF TI'NNING METAL PLATES AND OTHER ARTICLES.
APPLICATION FILED MAYI5. T916} 1,2% ,532, v v Patented Oct. 9, {917.
6' D 6 Z FATTY A010 FLUX M04 rem 771v 20, C. or above,
STATES PATENT OFFICE.
CARL DBEYMANN, OF BALTIMORE, MAIRXLAND.
- PROCESS OF TIN'NING METAL PLATES AND OTHER ARTICLES. 4
Application filed may 15, 1916. Serial No. 97,507.
5 invented certain new and useful Improvements in Processes of Tinning Metal Plates and other Articles, of which the following is a full, clear, and exact description.
In plating sheet iron with tin the bath of molten tin is covered with a layer of palmoil so that as the tin-coated plate leaves the tin it passes through the oil.
In the process indicated the oil used is consumed in large amount, and I have discovered that this is due chiefly todecomposition and polymerization of the unsatue rated fatty acid and glycerid. This decomposition and polymerization increases as the oil is heated, especially when heated to 250 the temperature at which the plating with tin is efiected. With a glycerid or other ester of a saturated fatty acid,
polymerization and decomposition do not occur, or only toa slight extent.
present invention is based" on the above discoveries. In my improved process I the oil used is a glycerid or ester of a saturated fatty acid as for example oleo-stearin, all kinds of hydrogenated oils and fats, and
artificial esters produced from palmitic acid,
stearic acid or other saturated acids.
In the accompanying drawing the figure shows diagrammatically a tank or vat A containing molten tin B. .The vessel is di- 1ivided by a partition C which terminates thereby dividing the vesabove the bottom,
sel into two communicating compartments, D, E. On the molten tin in the latter com- Specification of Letters iatent.
Patented Oct. 9, 1917.
partment is a body of glycerid or other ester F, and in the former. a layer G composed of the usual flux, such as ammonium chlorid and zinc chlorid.
In carrying out the invention in the preferred manner, the iron plate or sheet previously cleaned in any suitable manner, is
passed into the molten tin B in compartment D of the vessel A, then under the partition G into compartment E, and thence out through the layer of glycerid or other ester F. A
The tin plate is equal in every respect to that produced by the palm-oil process, with the important advantage that my process has a much larger output for the same Y amount of bil consumed. In other words, my process is more economical. Experience has shown that the output is'at least twenty-- five per cent. greater with the same con- .sumption of oil.
What I claim is:
1. In a process of tinning metal plates and other articles, the step comprising passing theg plate through a bath of molten tin and out through a layer consisting essentially of an ester of a saturated fatty acid, floating on the molten tin.
2. In a process of tinning plates and other articles, the steps comprising dipping the plate into a bathof molten tin, and taking the plate out of the bath through a layer or body consisting essentially of hydrogenated oil. Y
In, testimony whereof I- hereunto aflix my signature.
CARL DREYMANN.
US9750716A 1916-05-15 1916-05-15 Process of tinning metal plates and other articles. Expired - Lifetime US1242532A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721149A (en) * 1950-05-19 1955-10-18 Sinclair Refining Co Art of tin plating
US2746884A (en) * 1952-08-13 1956-05-22 Rosenstein Ludwig Method of tin plating and activated fatty oil composition therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721149A (en) * 1950-05-19 1955-10-18 Sinclair Refining Co Art of tin plating
US2746884A (en) * 1952-08-13 1956-05-22 Rosenstein Ludwig Method of tin plating and activated fatty oil composition therefor

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