US84041A - Improvement in treating cast-iron for the manufacture of car-wheels - Google Patents
Improvement in treating cast-iron for the manufacture of car-wheels Download PDFInfo
- Publication number
- US84041A US84041A US84041DA US84041A US 84041 A US84041 A US 84041A US 84041D A US84041D A US 84041DA US 84041 A US84041 A US 84041A
- Authority
- US
- United States
- Prior art keywords
- wheels
- iron
- car
- manufacture
- improvement
- 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
- 238000004519 manufacturing process Methods 0.000 title description 6
- 229910001018 Cast iron Inorganic materials 0.000 title description 4
- 239000002184 metal Substances 0.000 description 22
- 229910052751 metal Inorganic materials 0.000 description 22
- 238000000034 method Methods 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000000446 fuel Substances 0.000 description 8
- 238000005266 casting Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 235000010751 Asperula odorata Nutrition 0.000 description 4
- 244000186140 Asperula odorata Species 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000000266 injurious Effects 0.000 description 4
- 230000001590 oxidative Effects 0.000 description 4
- 235000002639 sodium chloride Nutrition 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 241000282898 Sus scrofa Species 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 238000005262 decarbonization Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910000499 pig iron Inorganic materials 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/04—Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
Definitions
- This invention relates to improvements in the process of preparing cast-iron, whether in the condition of pig or scrap, for making or casting car-wheels, the object of which is to provide car-wheels of a better and more uniform quality than oaube produced by the common mode. It consists in meltingthe pig-iron or scrap, or both, in a reverberatory furnace, free from contact with the fuel used in the process, and therefore tree, to a large extent, if not tot-ally, from the injurious action of any impuritieg which may exist in the said fuel, such as sulphur, phosphorus, arsenic, o'r-any other substance capable of coutaminatingor injuring the quality of the said metal or mixture of metal.
- the iron to be used in casting the car-wheel is preserved from contact with the fuel used for melting it, and the consequent injurious action of the contaminating impurities which may exist in said fuel, thereby retaining the normal'strength of the material composing the mixture.
- molten metal in thefurnaoe may be cont-rolled at will by holding the molten metal in thefurnaoe a greater or less length of time, varying commonly from fifteen 'to thirty minutes.
- I also plunge into the molten metal a green stick, or a some other substance containing moisture, or capable of evolving a gas or gases at the temperature-imparted by the said molten metal, which actcauses ebullition, by which the impurities are, to a greater extent, thrown off.
- the metal or mixture in the said furnace is found to be sufficiently decarbonized, and capable of producing a chill of the thickness desired, I draw it from the furnace and cast it in chill-moulds, in the usual manner.
- Gar-wheels produced by the herein-described improved process as a new a 'cle of manufacture, substantially as and for the' purpose specified.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
HENRY M. WOODWARD, OF ST. LOUIS, MISSOURI.
Letters Patent No. 84,041, dcted November 10, 1868.
IMPROVEMENT IN TREATING CAST-IRON FOR THE MANUFACTURE OI.CAR-WHEELS.
The Schedule referred to in these Letters Patent and making part of the same.
To all whom it may concern:
Be it known that I, HENRY M. WOODWARD, of St. Louis, in the county of St. Louis, and State of Misspun, have invented a new and improved Process for Preparing the Metal to be Used in Casting Gar-Wheels; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to understand the same.
This invention relates to improvements in the process of preparing cast-iron, whether in the condition of pig or scrap, for making or casting car-wheels, the object of which is to provide car-wheels of a better and more uniform quality than oaube produced by the common mode. It consists in meltingthe pig-iron or scrap, or both, in a reverberatory furnace, free from contact with the fuel used in the process, and therefore tree, to a large extent, if not tot-ally, from the injurious action of any impuritieg which may exist in the said fuel, such as sulphur, phosphorus, arsenic, o'r-any other substance capable of coutaminatingor injuring the quality of the said metal or mixture of metal. It consists, further, in maintaining the said molten metal in the said reverberatory furnace in a molten condition, subject to the oxidizing or decarbonizing-action of the oxygen of the atmosphere whichpasses as a draught over the surface of the said molten mass, until the said molten mass of iron has been, by test-samples, found to be in that condition of decarbonization which will produce the desired thickness of chill on the Taqj and flange of the wheel. This process, istherefore, especially valuable in two respects, and involves the following points:
First. By thesubstitution of the reverberatory for the cupola-furnace, the iron to be used in casting the car-wheel is preserved from contact with the fuel used for melting it, and the consequent injurious action of the contaminating impurities which may exist in said fuel, thereby retaining the normal'strength of the material composing the mixture.
Second. The depth of chill on the face and flange,
or any other surface of the wheel, may be cont-rolled at will by holding the molten metal in thefurnaoe a greater or less length of time, varying commonly from fifteen 'to thirty minutes. z,
I also plunge into the molten metal a green stick, or a some other substance containing moisture, or capable of evolving a gas or gases at the temperature-imparted by the said molten metal, which actcauses ebullition, by which the impurities are, to a greater extent, thrown off.
In connection with and as a partof this process, I use chloride of sodium, or common salt, as a flux, for the purpose of rendering the slag or cinder more fluid, and therefore more readily separable from the metal.
, I use it generally in the proportion of, say, four pounds.
of salt to one ton of iron. I
When, by examination of test-samples, the metal or mixture in the said furnace is found to be sufficiently decarbonized, and capable of producing a chill of the thickness desired, I draw it from the furnace and cast it in chill-moulds, in the usual manner.
I have found, in practice, that this improved process gives greatly-improved results, and that after the metal has been subjected a sufficient length of time to the oxidizing or decarbonizing-action of the atmosphere at a high temperature in the reverberatory furnace, the resulting wheels have an increased capacity to resist tensile strain.
Having thus described my invention,
I claim as new, and desire to secure by Lette1s Patent 1. The herein-described improved process for producing cast-metal car-wheels, substantially as and for the purpose described.
2. Gar-wheels produced by the herein-described improved process, as a new a 'cle of manufacture, substantially as and for the' purpose specified.
Witnesses: HENRY M. WOODWARD.
LEONARD WILCOX, Haney MARTIN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US84041A true US84041A (en) | 1868-11-10 |
Family
ID=2153533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US84041D Expired - Lifetime US84041A (en) | Improvement in treating cast-iron for the manufacture of car-wheels |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US84041A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220106831A1 (en) * | 2020-10-05 | 2022-04-07 | Cornellcookson, Llc | Vertically stacking panel door with a lifting cam |
-
0
- US US84041D patent/US84041A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220106831A1 (en) * | 2020-10-05 | 2022-04-07 | Cornellcookson, Llc | Vertically stacking panel door with a lifting cam |
| US11927055B2 (en) * | 2020-10-05 | 2024-03-12 | Cornellcookson, Llc | Vertically stacking panel door with a lifting cam |
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