US111446A - Improvement in tempering steel - Google Patents
Improvement in tempering steel Download PDFInfo
- Publication number
- US111446A US111446A US111446DA US111446A US 111446 A US111446 A US 111446A US 111446D A US111446D A US 111446DA US 111446 A US111446 A US 111446A
- Authority
- US
- United States
- Prior art keywords
- steel
- improvement
- tempering steel
- fire
- tempering
- 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
- 238000005496 tempering Methods 0.000 title description 4
- 235000002639 sodium chloride Nutrition 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 241000167854 Bourreria succulenta Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 235000019693 cherries Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Inorganic materials [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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
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 Steel (AREA)
Description
UNITED STATES PATENT OFFICE.
IMPROVEMENT IN TEMPERING STEEL.
Specification forming part of Letters Patent No. 111,446, dated January 31, 1871.
To all whom it may concern.-
-Be it known that I, GEORGE B. GARMAN, of Washington township, in the county of Elkhart, in the State of Indiana, have invented a new and Improved Mode of Tempering Steel in such a manner as to give it extraordinary strength and toughness as Well as extreme hardness; and I do hereby declare that the following is a full and exact description of my mode, and of the materials used by me.
First, I heat the steel to a cherry red in an ordinary clean smiths fire, then cover it with pure chloride of sodium (common salt) and cleanse the fire by throwing upon i t a portion of the samesalt, andTgain return "the steel into thefire', and repeat this process of applying salt to the steel and to the fire until there is no appearance of sulphur upon the steel. This application of such salt to the steel and the fire has the effect of purifying the fire and neutralizing the sulphur therein, and of con tracting and refining the steel. Second, I then plunge the steel, at a cherry'red heat, into a Solution R iillfiilififiiAvater,01 gallon fnitrafe of'potassa, or saltpeter, onehalf ounce alumfon'eand one-half h ounce and said chlo'ride of sodium, or common salt,
four ounces, and in the same proportions when more or less of this solution is needed.
The chemicals should be of perfectly pure quality to insure satisfactory results, and I find it necessary in most cases to purify the salt by boiling. Different proportions of these chemicals named from those above given will produce a good temper, but my experiments have convinced me that the proportions named above will give the most satisfactory results in producing a temper combining atonce the qualities of extreme hardness, toughness, and strength.
What I claim as my invention, and desire to secure by Letters Patent, is
The method and mode of tempering steel by cleansing the fire as above described, and the application to the steel of the said chloride of sodium, in the manner hereinbefore mentioned, and the' use of the said solution of chemicals in the proportions and in the manner above set forth and described, or in the use of a solution of said chemicals in substantially the same proportions.
GEORGE B. GARMAN.
Witnesses:
H. H. FOWLER, A. H. SIEG-FRIED.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US111446A true US111446A (en) | 1871-01-31 |
Family
ID=2180915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US111446D Expired - Lifetime US111446A (en) | Improvement in tempering steel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US111446A (en) |
-
0
- US US111446D patent/US111446A/en not_active Expired - Lifetime
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