US43732A - Improved composition for carbonizing iron - Google Patents
Improved composition for carbonizing iron Download PDFInfo
- Publication number
- US43732A US43732A US43732DA US43732A US 43732 A US43732 A US 43732A US 43732D A US43732D A US 43732DA US 43732 A US43732 A US 43732A
- Authority
- US
- United States
- Prior art keywords
- iron
- composition
- improved composition
- case
- carbonizing
- 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
- 239000000203 mixture Substances 0.000 title description 24
- 229910052742 iron Inorganic materials 0.000 title description 20
- 238000010000 carbonizing Methods 0.000 title 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 8
- 239000004615 ingredient Substances 0.000 description 8
- 229940072033 potash Drugs 0.000 description 8
- 235000015320 potassium carbonate Nutrition 0.000 description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 8
- 239000002956 ash Substances 0.000 description 6
- 239000003610 charcoal Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 235000002639 sodium chloride Nutrition 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
Definitions
- This invention relates to composition by which iron of any description-cast, wrought, or malleable-can be hardened to any desired depth by placing the same in a case which is packed with said composition and heating it for from one to ten hours, according to the depth to which it is intended to harden the same.
- the composition consists of prussiate of potash, salt, wood-ashes, and charcoal, and these ingredients are mixed together in about the following proportions: prussiate of potash, five parts 5 common salt, one part; wood-ashes, one part; charcoal, three parts.
- Each of the ingredients is finely pulverized, and they may be applied separately or inva combined state.
- composition made of the ingredients herein specified, which are applied in about the proportion above set forth, in combination with or Without a case.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Description
UNITED STATES PATENT OEEIcE.
O. V. WILSON,'OF NEWARK, NEW JERSEY.
IMPROVED COMPOSITION FOR CARBONIZING IRON.
Specification forming part of Letters Patent No. 43,732, dated August 2, 1864.
To all whom it may concern Be it known that I, O. V. WILSON, of Newark, in the county of Essex and State of New Jersey, have invented a new and Improved Composition for Oarbonizing Iron; and I do hereby declare that the following is a full, clear, and exact description of the same.
This invention relates to composition by which iron of any description-cast, wrought, or malleable-can be hardened to any desired depth by placing the same in a case which is packed with said composition and heating it for from one to ten hours, according to the depth to which it is intended to harden the same.
The composition consists of prussiate of potash, salt, wood-ashes, and charcoal, and these ingredients are mixed together in about the following proportions: prussiate of potash, five parts 5 common salt, one part; wood-ashes, one part; charcoal, three parts. Each of the ingredients is finely pulverized, and they may be applied separately or inva combined state.
I have obtained good results if I place the iron in the case, which is made of sheet metal or cast-iron, according to convenience, and surround it (the iron) first with the pulverized prussiate of potash. Then I add the salt, and after this the Wood-ashes, and finally the charcoal, and after the case has been closed I in sert it in a good fire and heat it from one to ten hours. In this operation care must be taken to heat the case uniformly throughout, and it must be kept at a bright red heat. It removed after the lapse of one hour, it is found this operation is composed of steel, and can be hardened in the same manner.
Instead of applying the ingredients of my composition separately, one after the other, to the iron, they may be mixed together and packed round the iron in a mixed state. Under all circumstances, however, it is desirable to apply my composition in combination with the case. If used without the case, it produces very little effect, andthe scale produced by applying the composition to the red-hot surface of the iron and heating it again with the iron is so thin that it is of very little account. In using the composition with the case the depth of the scale can be regulated by increasing or decreasing the term of heating.
I do not claim as my invention the use of prussiate of potash for hardening iron; but
What I claim as new, and desire to secure by Letters Patent, is
The employment of a composition made of the ingredients herein specified, which are applied in about the proportion above set forth, in combination with or Without a case.
CHARLES V. WILSON.
Witnesses:
W. HAUFF, J. F. BUoKLEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US43732A true US43732A (en) | 1864-08-02 |
Family
ID=2113298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US43732D Expired - Lifetime US43732A (en) | Improved composition for carbonizing iron |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US43732A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050046517A1 (en) * | 2003-08-29 | 2005-03-03 | Matsushita Electric Industrial Co., Ltd. | Electronic component |
-
0
- US US43732D patent/US43732A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050046517A1 (en) * | 2003-08-29 | 2005-03-03 | Matsushita Electric Industrial Co., Ltd. | Electronic component |
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