US309492A - Hardening steel - Google Patents
Hardening steel Download PDFInfo
- Publication number
- US309492A US309492A US309492DA US309492A US 309492 A US309492 A US 309492A US 309492D A US309492D A US 309492DA US 309492 A US309492 A US 309492A
- Authority
- US
- United States
- Prior art keywords
- steel
- compound
- hardening steel
- sulphate
- ammoniac
- 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 12
- 239000010959 steel Substances 0.000 title description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 3
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229940072033 potash Drugs 0.000 description 3
- 235000015320 potassium carbonate Nutrition 0.000 description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 3
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 3
- 235000002639 sodium chloride Nutrition 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- 239000003760 tallow Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 229940095054 ammoniac Drugs 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 sa-l-ammoniac Chemical compound 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000011780 sodium chloride 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
- 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
- a compound for tempering steel consisting of cyanide of potassium, prnssiate of potash, sa-l-ammoniac, sulphate of iron, and bluestone, in or about the proportions named.
- tempering steel which consists in heating the steel to a cherry-red and melting on its surface a compound of cyanide of potassium, prussiatc of potash, sala-mmoniac, sulphate of iron, and blue-stone, and then plunging the steel into a bath of tallow having incorporated in it salt and salammoniac, as described.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Description
UNITED STATES PATENT @rrrcn,
LUDLEM BASSETT ROOIUVELL, OF SUN BURY, PENNSYLVANIA.
HARDENING STEEL.
SPECIPIQAI'ION forming part of Letters Patent No. 309,492, dated December 16, 1884.
ADDlicafion filed May 6, 15554. (No specimens-l.
In carrying out my invention, I take one pound cyanide of potassium, one ounce prussiate of potash, one ounce salt sal'ammoniac, two ounces sulphate of iron, one-half ounce blue stone (sulphate copper.) These ingredients are placed in a crucible and melted together, and when thoroughly mixed the compound is poured out into cakes. The steel to be tempered is then heated to a cherry-red, or a little brighter, and on it is placed a small piece of the compound. Then the surface of the steel is properly covered by the melting of the compound, the steel is plunged into a bath of tallow into which has been mixed, by melting, sal-ammoniac and common salt in the proportion of three pounds each of these two ingredients to sixty or seventy'five pounds of tallow contained in a kettle, box, or other suitable receptacle. When the steel has been thus tempered, it is ready for use without drawing the temper, and is suitable for all knives used in nail-mills, dies, and lathe-Work. By the use of this compound and process steel worth from twelve to fifteen cents per pound is made equal to R. Mushet' steel, and is superior to all others, as it does not crack. Knives tempered in this way will run from twelve to sixteen days. Bed-knives for nailmachines will last from five to six months in daily use, thus effecting a great saving in breakage, time, and labor.
Having thus described Ill claim as new is 1. A compound for tempering steel, consisting of cyanide of potassium, prnssiate of potash, sa-l-ammoniac, sulphate of iron, and bluestone, in or about the proportions named.
2. The process of tempering steel, which consists in heating the steel to a cherry-red and melting on its surface a compound of cyanide of potassium, prussiatc of potash, sala-mmoniac, sulphate of iron, and blue-stone, and then plunging the steel into a bath of tallow having incorporated in it salt and salammoniac, as described.
LUDLEM BASSETT ROGIUVELL.
Vitnesses:
J. CAMERON EIsnLv, EDWIN MOURY.
y invention, what I
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US309492A true US309492A (en) | 1884-12-16 |
Family
ID=2378656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US309492D Expired - Lifetime US309492A (en) | Hardening steel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US309492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8215492B2 (en) | 2003-09-18 | 2012-07-10 | Pur Water Purification Products, Inc. | Water treatment devices and cartridges therefor |
-
0
- US US309492D patent/US309492A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8215492B2 (en) | 2003-09-18 | 2012-07-10 | Pur Water Purification Products, Inc. | Water treatment devices and cartridges therefor |
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