US64916A - Improvement in the manufacture of iron and steel - Google Patents
Improvement in the manufacture of iron and steel Download PDFInfo
- Publication number
- US64916A US64916A US64916DA US64916A US 64916 A US64916 A US 64916A US 64916D A US64916D A US 64916DA US 64916 A US64916 A US 64916A
- Authority
- US
- United States
- Prior art keywords
- iron
- steel
- manufacture
- improvement
- molds
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 40
- 229910052742 iron Inorganic materials 0.000 title description 20
- 238000004519 manufacturing process Methods 0.000 title description 14
- 229910000831 Steel Inorganic materials 0.000 title description 10
- 239000010959 steel Substances 0.000 title description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- 229910000754 Wrought iron Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 241000612703 Augusta Species 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 241000282887 Suidae Species 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000005712 crystallization Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910000499 pig iron Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
Definitions
- My improved method of manufacturing iron consists, first, in the employment of a compound flux for reducing the ores in the blastfurnace, composed of manganese and common salt, in varied proportions, according to the nature of the ores, combined with limestones or shells. -The metal is run out into hot cast-iron molds in ingots, instead of being cast in sand-beds, as usual in pigs.
- the hot metal in the molds is then covered with powdered manganese, and the molds are set in a heating-furnace and kept at a high heat for several hours, or until the metal has parted with a portion of its carbon, which is taken up by the oxygen in the manganese, and is thereby rendered steel-like in its nature, in respect to the proportion of carbon contained in the iron.
- the metal having been thus kept at a uniform high temperature for a long time is cooled slowly in the furnace, and in the process of crystallization imder these conditions the molecules arrange themselves in such relations that the iron, when cold, possesses the flexibility and tenacity of hammered or rolled bars, combining the properties of the best cast-steel.
- the ingot taken from the molds is reheated it may be rolled or hammered into bars of any required size and shape, for the manufacture of tools requiring hardness and temper.
- Rail-rails or any heavy iron-work requiring strength may be made of this refined and decarbonized metal by merely casting in proper molds, and the quality of the iron in tenacity and flexibility will be equal to steel bars.
- the face of rails may be hardened by placing a cold wrought-iron bar in the bottom of the mold, and casting upon it to chill the surface, while the body of the iron will be as strong as wrought-iron, thus obtaining, at a cost not much greater than that of pig-iron, a rail of the best quality.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Metal Rolling (AREA)
Description
UNITED STATES PATENT OFFICE.
' LORENZO SIBERT, OF MOUNT SOLON, VIRGINIA.
IMPROVEMENT IN THE MANUFACTURE OF IRON AND STEEL.
Specification forming part of Letters Patent No. 64,916, dated May 21, 1867.
To all whom it may concern:
Be it known that I, LORENZO SIBERT, of Mount Solon, in the county of Augusta and State of Virginia, have invented a new and useful Improvement in the Manufacture of Iron and Steel; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable others skilled in the art to make and use the same.
The nature of this invention or discovery consists in a new and improved method of treating cast-iron produced in an ordinary blast-furnace for the manufacture of iron and steel of superior quality.
My improved method of manufacturing iron consists, first, in the employment of a compound flux for reducing the ores in the blastfurnace, composed of manganese and common salt, in varied proportions, according to the nature of the ores, combined with limestones or shells. -The metal is run out into hot cast-iron molds in ingots, instead of being cast in sand-beds, as usual in pigs. The hot metal in the molds is then covered with powdered manganese, and the molds are set in a heating-furnace and kept at a high heat for several hours, or until the metal has parted with a portion of its carbon, which is taken up by the oxygen in the manganese, and is thereby rendered steel-like in its nature, in respect to the proportion of carbon contained in the iron. The metal having been thus kept at a uniform high temperature for a long time is cooled slowly in the furnace, and in the process of crystallization imder these conditions the molecules arrange themselves in such relations that the iron, when cold, possesses the flexibility and tenacity of hammered or rolled bars, combining the properties of the best cast-steel. When the ingot taken from the molds is reheated it may be rolled or hammered into bars of any required size and shape, for the manufacture of tools requiring hardness and temper.
Railroad-rails or any heavy iron-work requiring strength may be made of this refined and decarbonized metal by merely casting in proper molds, and the quality of the iron in tenacity and flexibility will be equal to steel bars. The face of rails may be hardened by placing a cold wrought-iron bar in the bottom of the mold, and casting upon it to chill the surface, while the body of the iron will be as strong as wrought-iron, thus obtaining, at a cost not much greater than that of pig-iron, a rail of the best quality.
Having described my invention and discovery, what I claim as new, and desire to secure by Letters Patent, is-
The improved method of manufacturing iron and steel, substantially as herein described.
The above specification of my invention signed by me this 12th vday of March, 1867.
LORENZO SIBERT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US64916A true US64916A (en) | 1867-05-21 |
Family
ID=2134445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US64916D Expired - Lifetime US64916A (en) | Improvement in the manufacture of iron and steel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US64916A (en) |
-
0
- US US64916D patent/US64916A/en not_active Expired - Lifetime
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