US1036435A - Case-hardening compound. - Google Patents
Case-hardening compound. Download PDFInfo
- Publication number
- US1036435A US1036435A US68227912A US1912682279A US1036435A US 1036435 A US1036435 A US 1036435A US 68227912 A US68227912 A US 68227912A US 1912682279 A US1912682279 A US 1912682279A US 1036435 A US1036435 A US 1036435A
- Authority
- US
- United States
- Prior art keywords
- case
- hardening compound
- hardening
- potassium
- compound
- 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 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 241000283153 Cetacea Species 0.000 description 1
- 229910000831 Steel Inorganic materials 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
- 150000002739 metals Chemical class 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C23C8/60—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 solids, e.g. powders, pastes
- C23C8/62—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 solids, e.g. powders, pastes only one element being applied
- C23C8/64—Carburising
- C23C8/66—Carburising of ferrous surfaces
Definitions
- Our present invention pertainsto the case hardening of articles of iron and other metals; and it consists-in a casd' hardening compound made up of the following ingredients, combined in the proportions stated, viz:
- Bicarbonate of soda 1 ounce Bicarbonate of potassium (powdered) .1 ounce. Bone dust ounce.
- a case hardening compound comprising. cyamd of potassium, bicarbonate of soda, bi- V carbonate of potassium, and bone dust, sub
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 Articles (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
I UNITED STATES PATENT oEEIoE.
PATRICK W. BBENNAN, OF PHILADELPHIA, AND MICHAEL MEEHAN, OF 'WILLIAMS- TOWN, PENNSYLVANIA.
CASE-HARDENING COMPOUND.
No Drawing.
Specification of Letters Patent. Application filed March 7, 1912. Serial No. 682,279.
Patented Aug. 2t), 1912 T 0 all whom. it m (1y concern.-
Be it known that we, PATRICK W. BREX- xxx and MICHAEL Mum-tax, citizens of the United States. residing at Philadelphia, in the county of Philadelphia, and \Villiamstown, in the county of Dauphin, respectively, both in the State of Pennsylvania. have invented new and useful Improvements in Case-Hardening Compound, of which the following is a specification.
Our present invention pertainsto the case hardening of articles of iron and other metals; and it consists-in a casd' hardening compound made up of the following ingredients, combined in the proportions stated, viz:
Cyanid of potassium (powdered) 2 ounces.
Bicarbonate of soda 1 ounce. Bicarbonate of potassium (powdered) .1 ounce. Bone dust ounce.
. jected to the action of the mixture until dark. The articleis then again subjected to the action of a slow fire and is heated to about a bright red, after which it is plunged in water.
Practical experience has demonstrated that the depth of the casehardening will depend upon the number of times the article of iron or steel is heated and then-rolled in the case hardening mixture;
Having described our invention, what -we claim and desire to secureby LettersPattent, is:
A case hardening compound comprising. cyamd of potassium, bicarbonate of soda, bi- V carbonate of potassium, and bone dust, sub
stantially as described and for the purpose specified.
In testimony whereof we have hereunto set-our hands in presence of two subscribing V witnesses.
Witnesses:
"' WM. BLANNING,
C. F. BLANNING.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68227912A US1036435A (en) | 1912-03-07 | 1912-03-07 | Case-hardening compound. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68227912A US1036435A (en) | 1912-03-07 | 1912-03-07 | Case-hardening compound. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1036435A true US1036435A (en) | 1912-08-20 |
Family
ID=3104714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US68227912A Expired - Lifetime US1036435A (en) | 1912-03-07 | 1912-03-07 | Case-hardening compound. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1036435A (en) |
-
1912
- 1912-03-07 US US68227912A patent/US1036435A/en not_active Expired - Lifetime
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