US1994276A - Bimetallic article - Google Patents
Bimetallic article Download PDFInfo
- Publication number
- US1994276A US1994276A US661092A US66109233A US1994276A US 1994276 A US1994276 A US 1994276A US 661092 A US661092 A US 661092A US 66109233 A US66109233 A US 66109233A US 1994276 A US1994276 A US 1994276A
- Authority
- US
- United States
- Prior art keywords
- tin
- sodium
- iron
- bimetallic
- alloy
- 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
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 239000005028 tinplate Substances 0.000 description 3
- 229910000528 Na alloy Inorganic materials 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- UAZMXAXHGIZMSU-UHFFFAOYSA-N sodium tin Chemical compound [Na].[Sn] UAZMXAXHGIZMSU-UHFFFAOYSA-N 0.000 description 2
- 235000014441 Prunus serotina Nutrition 0.000 description 1
- 241001412173 Rubus canescens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 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
- C23C2/08—Tin or alloys based thereon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/939—Molten or fused coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12708—Sn-base component
- Y10T428/12722—Next to Group VIII metal-base component
Definitions
- This invention relates to bimetallic bodies and particularly to ferrous bodies having a protec-. tive coating of tin.
- Tin plate is used in increasingly large amounts for containers to hold food and other commodities. As is well known, it consists of a sheet of steel which has been fed through a tin pot so as to 'coat bothv surfaces with tin. The tin represents only a vary small percentage of the total weight of the sheet, but if properly applied it affords substantial protection to the base metal. Tin plate as. ordinarily. made is open to definite limitations. For example, certain food products such as black cherries cannot be successfully put up in tin cans because after a very short storage the contents of the can are discolored and the taste is spoiled, by reason of 3 the iron in the base metal being attacked and going into solution. A great deal of difiiculty is also experienced in canning corn. These limitations have necessitated the use ofglass containers for certain products and it has also been proposed in the case of army rations, which may be shelved, for a period of years before us-' ing, that stainless steel containers be employed.
- the tin-sodium'alloy saves the iron danger of spoilage is materially reduced.
- the presence of the sodium in the tin improves the tinning operation, resulting in a smaller percentage of waste sheets, a decreased number of pin holes, etc.
- a food container made of a bimetallic body comprising a ferrous base and coated with a binary tin-sodium alloy, the sodium being in amount up to 2%.
- a bimetallic body comprising a ferrous base having directly applied thereto a binary alloy of tin and sodium, the sodium being present in the alloy in an amount up to 2%.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Wrappers (AREA)
Description
Patented Mar. 12, 1935 UNITED STATES BIMETAILIC ARTICLE Herbert W. Graham and SamueLL. Case, Pitt s-- burgh, Pa., assiguors to Jones & Laughlin Steel Corporation. Pittsburgh, Pa., a corporation of Pennsylvania No Drawing. Application March 16,1933,
- Serial No. 661,092
2 Claims. (01'. 29-181) This invention relates to bimetallic bodies and particularly to ferrous bodies having a protec-. tive coating of tin.
Commercial tin plate is used in increasingly large amounts for containers to hold food and other commodities. As is well known, it consists of a sheet of steel which has been fed through a tin pot so as to 'coat bothv surfaces with tin. The tin represents only a vary small percentage of the total weight of the sheet, but if properly applied it affords substantial protection to the base metal. Tin plate as. ordinarily. made is open to definite limitations. For example, certain food products such as black cherries cannot be successfully put up in tin cans because after a very short storage the contents of the can are discolored and the taste is spoiled, by reason of 3 the iron in the base metal being attacked and going into solution. A great deal of difiiculty is also experienced in canning corn. These limitations have necessitated the use ofglass containers for certain products and it has also been proposed in the case of army rations, which may be shelved, for a period of years before us-' ing, that stainless steel containers be employed.
This, of course, is'highly expensive.
Study of the problem shows that if, as is frequently the case, a 'very slight pr n hole is present in the tin, or if the coating is thin at some point and deteriorates sufficiently to, allow access of moisture to the ferrous base, local electrolysis to the tin. while as stated, the tin in ordinary tin plate causes the iron to be attacked, we have made the surprising discovery that if sodium even in amounts as low as 0.2% is alloyed with the tin the alloy acts to inhibit the attack on the iron. Up to 2% sodium may be used. If iron and tin are placed 'in any liquid which acts as an electrolyte, the iron will be" attacked. If, however, a small percentage of sodium is added to the tin, the tin-sodium'alloy saves the iron danger of spoilage is materially reduced. We also'believe that the presence of the sodium in the tin improves the tinning operation, resulting in a smaller percentage of waste sheets, a decreased number of pin holes, etc.
We havedescribed a present preferred embodiment of our invention. It will be understood,
however, that this is by way of illustration only and that it may be otherwise embodied or practiced within the scope of the following claims.
We claim:
1. As a new manufacture, a food container made of a bimetallic body comprising a ferrous base and coated with a binary tin-sodium alloy, the sodium being in amount up to 2%.
2. A bimetallic body comprising a ferrous base having directly applied thereto a binary alloy of tin and sodium, the sodium being present in the alloy in an amount up to 2%.
HERBERT W. GRAHAM. SAMUEL L. CASE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US661092A US1994276A (en) | 1933-03-16 | 1933-03-16 | Bimetallic article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US661092A US1994276A (en) | 1933-03-16 | 1933-03-16 | Bimetallic article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1994276A true US1994276A (en) | 1935-03-12 |
Family
ID=24652176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US661092A Expired - Lifetime US1994276A (en) | 1933-03-16 | 1933-03-16 | Bimetallic article |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1994276A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497164A (en) * | 1946-06-25 | 1950-02-14 | Carnegie Illinois Steel Corp | Manufacture of tin plate |
| WO2002006127A1 (en) * | 2000-07-18 | 2002-01-24 | Crown Cork & Seal Technologies Corporation | Tinned iron can for light colored fruits |
-
1933
- 1933-03-16 US US661092A patent/US1994276A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497164A (en) * | 1946-06-25 | 1950-02-14 | Carnegie Illinois Steel Corp | Manufacture of tin plate |
| WO2002006127A1 (en) * | 2000-07-18 | 2002-01-24 | Crown Cork & Seal Technologies Corporation | Tinned iron can for light colored fruits |
| US20040134912A1 (en) * | 2000-07-18 | 2004-07-15 | Tarulis George J | Drawn wall ironed can for light colored fruits |
| US20070157573A1 (en) * | 2000-07-18 | 2007-07-12 | Crown Packaging Technology, Inc. | Drawn wall iron can for light colored fruits |
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