US257248A - Compound for tempering steel - Google Patents
Compound for tempering steel Download PDFInfo
- Publication number
- US257248A US257248A US257248DA US257248A US 257248 A US257248 A US 257248A US 257248D A US257248D A US 257248DA US 257248 A US257248 A US 257248A
- Authority
- US
- United States
- Prior art keywords
- compound
- steel
- tempering
- tempering steel
- pound
- 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
- 150000001875 compounds Chemical class 0.000 title description 11
- 229910000831 Steel Inorganic materials 0.000 title description 7
- 239000010959 steel Substances 0.000 title description 7
- 238000005496 tempering Methods 0.000 title description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 229910021653 sulphate ion Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 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 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 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
Definitions
- ALEXANDER H SIEGFRIED, OF SELINS GROVE, PENNSYLVANIA.
- My invention relates to an improved compound for use in preparing and tempering. steel.
- the steel to be treated is heated to a red heat and the compound applied thereto, after which the steel is returned to the fire and heated to aproper degree for working, then withdrawn and-worked on the anvil into the required shape. This operation is repeated until the tool is finished and ready for tempering, when it is heated to a cherry-red heat, the compound applied, and the tool subsequently tempered to give it the desired degree of hardness in the usual way.
- the heating of metal and the application of the compound thereto may be repeated any desired number of times, steel which contains an excess of carbon reqnirin g a more thorough application of the compound than the steels in which the percentage of carbon is smaller.
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)
- Paper (AREA)
Description
UNITED STATES PATENT OFFICE.
ALEXANDER H. SIEGFRIED, OF SELINS GROVE, PENNSYLVANIA.
COMPOUND FOR TEMPERING STEEL.
SPECIFICATION forming part of Letters Patent No. 257,248, dated May 2, 1882.
v Application filed September 24, 1681. (No specimens.)
T 0 all whom it may concern:
Be it known that LAALEXANDER H. SlEG- FRIED, of Selins Grove, in the county of Snyder and State of Pennsylvania, have invented certain Improvementsin Compounds for Tempering Stecl,of which the followingis a specification.
My invention relates to an improved compound for use in preparing and tempering. steel.
In making use of my invention I first prepare a compound consisting of salt, four and a half pounds; sulphate of copper, three-fourths of a pound; soda-ash, one and one-halfpound; sal-ammoniac, one pound; oxide of manganese, three-fourths of a pound sulphate of iron, three-fourths of a pound; nitrate of potassa, one-half of a pound. These ingredients are pulverized and thoroughly intermingled to produce a homogeneous mass. The steel to be treated is heated to a red heat and the compound applied thereto, after which the steel is returned to the fire and heated to aproper degree for working, then withdrawn and-worked on the anvil into the required shape. This operation is repeated until the tool is finished and ready for tempering, when it is heated to a cherry-red heat, the compound applied, and the tool subsequently tempered to give it the desired degree of hardness in the usual way.
I find that by means of the compound and the 0 treatment above described I-am enabled to give the cutting-tool a great degree of hardness combined with great strength and tough ness. 7
While it is preferred to adhere to the pro portions stated, they may be modified to a limited extent without seriously affecting the action of the compound.
The heating of metal and the application of the compound thereto may be repeated any desired number of times, steel which contains an excess of carbon reqnirin g a more thorough application of the compound than the steels in which the percentage of carbon is smaller.
Having thus described my invention, what I claim is- The compound for tempering steel, consisting of salt, sulphate of copper, soda-ash, sal-am moniac, oxide of man ganese, sulphate of iron, and nitrate of potassa,in substantially the propor- 5o tions specified.
ALEXANDER IlIRAllI SIEGFRIED.
Witnesses:
GEORGE EBY, VAL. Bone.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US257248A true US257248A (en) | 1882-05-02 |
Family
ID=2326534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US257248D Expired - Lifetime US257248A (en) | Compound for tempering steel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US257248A (en) |
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0
- US US257248D patent/US257248A/en not_active Expired - Lifetime
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