US170173A - Improvement in processes of converting cast-iron into steel - Google Patents
Improvement in processes of converting cast-iron into steel Download PDFInfo
- Publication number
- US170173A US170173A US170173DA US170173A US 170173 A US170173 A US 170173A US 170173D A US170173D A US 170173DA US 170173 A US170173 A US 170173A
- Authority
- US
- United States
- Prior art keywords
- iron
- steel
- improvement
- processes
- cast
- 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
- 229910000831 Steel Inorganic materials 0.000 title description 2
- 238000000034 method Methods 0.000 title description 2
- 239000010959 steel Substances 0.000 title description 2
- 229910001018 Cast iron Inorganic materials 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000006233 lamp black Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- POJOORKDYOPQLS-UHFFFAOYSA-L barium(2+) 5-chloro-2-[(2-hydroxynaphthalen-1-yl)diazenyl]-4-methylbenzenesulfonate Chemical compound [Ba+2].C1=C(Cl)C(C)=CC(N=NC=2C3=CC=CC=C3C=CC=2O)=C1S([O-])(=O)=O.C1=C(Cl)C(C)=CC(N=NC=2C3=CC=CC=C3C=CC=2O)=C1S([O-])(=O)=O POJOORKDYOPQLS-UHFFFAOYSA-L 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
Definitions
- My invention relates to a process for manufacturing edge-tools and other implements from ordinary cast-iron and the invention consists in subjecting such articles, after having been annealed and refined by hammering, to the action of the hereinafter-described compound, whereby the cutting-edges and other thin portions of the articleswhich have been decarbonized and softened during the annealing are recarbonized, so that they may be tempered like ordinary steel.
- the tools or other articles are cast of ordinary cast-iron in any common and wellvknown manner, and then partially decarbonized in a suitable annealing-furnace until capable of being worked under the hammer, when they are removed from the-furnace and refined by hammering to any desired degree.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Factory Administration (AREA)
Description
CHARLES L. JEFFORDS, OF JAMESTOWN, NEW YORK.
IMPROVEMENT IN PROCESSES CF CONVERTING CAST-IRON INTO .STEE L.
Specification forming part of Letters Patent No. 170,173, dated November 23, 1875; application filed August 16, 1875.
To all whom it may concern:
Be it known that I. OHAs. L. JEFFORDS, of Jamestown, in the county of Chautauqua and State of New York, have invented a new and useful Process for Converting Cast-Iron into Steel, which process is fully set forth in the following specification.
My invention relates to a process for manufacturing edge-tools and other implements from ordinary cast-iron and the invention consists in subjecting such articles, after having been annealed and refined by hammering, to the action of the hereinafter-described compound, whereby the cutting-edges and other thin portions of the articleswhich have been decarbonized and softened during the annealing are recarbonized, so that they may be tempered like ordinary steel.
The tools or other articles are cast of ordinary cast-iron in any common and wellvknown manner, and then partially decarbonized in a suitable annealing-furnace until capable of being worked under the hammer, when they are removed from the-furnace and refined by hammering to any desired degree. By the.
process of annealing, the surface or outer skin of the articles, and more especially the cuttingedges thereof, have become so much decarbonized that they cannot be tempered in the ordinary manner. In order to recarbonize these soft portions of the articles the latter are heated to a bright-red color and immersed in a compound or preparation consisting of the following ingredients proportioned as follows: Eleven parts of animal charcoal, nineteen parts of lamp-black, seventeen parts of .iron into steel by heating the iron to a bright red color, and then immersing it in a compound or preparation consisting of eleven parts animal charcoal, nineteen parts lampblack, seventeen parts sal-soda, seven parts mnriate of soda, five parts black oxide of manganese, three parts pulverized limestone,
and eleven parts prussiate of potash, and allowing the iron to remain therein until cold, as hereinbefore set forth;
CHARLES L. JEFFORDS. Witnesses:
H. S. HALL, E. T. CARPENTER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US170173A true US170173A (en) | 1875-11-23 |
Family
ID=2239581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US170173D Expired - Lifetime US170173A (en) | Improvement in processes of converting cast-iron into steel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US170173A (en) |
-
0
- US US170173D patent/US170173A/en not_active Expired - Lifetime
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