US1375455A - Alloy for electrical resistance - Google Patents
Alloy for electrical resistance Download PDFInfo
- Publication number
- US1375455A US1375455A US324985A US32498519A US1375455A US 1375455 A US1375455 A US 1375455A US 324985 A US324985 A US 324985A US 32498519 A US32498519 A US 32498519A US 1375455 A US1375455 A US 1375455A
- Authority
- US
- United States
- Prior art keywords
- electrical resistance
- tungsten
- alloy
- aluminum
- chromium
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
Definitions
- FRANK F. HANSEN, OF CHICAGO, ILLINOIS, ASSIGNOR T0 HANSEN-HALLIBURTON MFG. COMPANY. OF CHICAGO, ILLINOIS.
- This invention relates to improvements in alloy for electrical resistance.
- This invention relates to improvements in those alloys used for electrical heating resistance units, as for instance in flat irons, electric stoves, toasters, etc., and the object of the invention is to provide such a resistance as will havea Very high fusing point, which will be relatively inexpensive toinanufactu're and able to compete commercially with other resistance alloys.
- I combine chromium, tungsten and aluminum.
- the chromium being employed in a preponderating quantity because of itscheapness and lowconductivity.
- the tungsten is used in small per cents. and the aluminum in an appreciably less per cent. than the tungsten.
- An alloy of these proportions has afusing point of approximately 1300 centigrade, is comparatively inexpensive to manufacture and is entirely suitable for drawing out into wire and use in all devices where electrical heating units are employed.
- An electrical resistance. alloy containing, chromium. tungsten and aluminum, the chromium being in prepouderating amount compared with the combined amount of tungsten and aluminum. andthe amount of tungsten being greater than the amount (if aluminum.
- An. electrical resistance allo containimg. chromium. tungsten and aluminum. the tungsten and aluminum together constituting less than seven per cent. of the whole and the tungsten being in greater quantity than' the aluminum.
- An electrical resistance alloy containing, chromium from 9391 to 95); tungsten from 2% to 6%, aluminum from 25% to 1%.
Description
STATES FATENT @FiF-EQE...
FRANK F. HANSEN, OF CHICAGO, ILLINOIS, ASSIGNOR T0 HANSEN-HALLIBURTON MFG. COMPANY. OF CHICAGO, ILLINOIS.
ALLOY FOR ELECTRICAL RESISTANCE.
No Drawing.
T 0 all whomz't may concern: 1
Be it known that I, FRANK F. HANSEN, a citizen'of United States,-residing at Chicago. in the county of Cook and State of Illinois. have im'ented a certain new and useful Improvement in Alloys for Electrical Resistance, of which the following is a full. clear, concise, and exact description.
This invention relates to improvements in alloy for electrical resistance. This invention relates to improvements in those alloys used for electrical heating resistance units, as for instance in flat irons, electric stoves, toasters, etc., and the object of the invention is to provide such a resistance as will havea Very high fusing point, which will be relatively inexpensive toinanufactu're and able to compete commercially with other resistance alloys.
In carrying out my invention, I combine chromium, tungsten and aluminum. the chromium being employed in a preponderating quantity because of itscheapness and lowconductivity. The tungsten is used in small per cents. and the aluminum in an appreciably less per cent. than the tungsten.
I have found the following proportions to be preferable Where the alloy is to be used for the purpose hereinbefore indicated.
Chromium 93% to 95% Tungsten; 2% to 6% Aluminum fr0In 25% to 1% Patented Apr. 19, 1921.
Serial No. 324,985.
An alloy of these proportions has afusing point of approximately 1300 centigrade, is comparatively inexpensive to manufacture and is entirely suitable for drawing out into wire and use in all devices where electrical heating units are employed.
I claim:
1. An electrical resistance. alloy containing, chromium. tungsten and aluminum, the chromium being in prepouderating amount compared with the combined amount of tungsten and aluminum. andthe amount of tungsten being greater than the amount (if aluminum.
2. An. electrical resistance allo containimg. chromium. tungsten and aluminum. the tungsten and aluminum together constituting less than seven per cent. of the whole and the tungsten being in greater quantity than' the aluminum.
3. An electrical resistance alloy containing, chromium from 9391 to 95); tungsten from 2% to 6%, aluminum from 25% to 1%.
1. An electrical resistance alloy containing, chromium approximately 95%, tungsten approximately 4%, aluminum approximately 1%.
In witness that I claim the foregoing I have hereunto subscribed my name this 2d day of Sept, 1919.
FRANK F. HANSEN.
Witness META SCHMIDT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US324985A US1375455A (en) | 1919-09-19 | 1919-09-19 | Alloy for electrical resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US324985A US1375455A (en) | 1919-09-19 | 1919-09-19 | Alloy for electrical resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1375455A true US1375455A (en) | 1921-04-19 |
Family
ID=23265949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US324985A Expired - Lifetime US1375455A (en) | 1919-09-19 | 1919-09-19 | Alloy for electrical resistance |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1375455A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2679455A (en) * | 1951-10-06 | 1954-05-25 | Climax Molybdenum Co | Methods for heat-treating molybdenum-base alloys |
-
1919
- 1919-09-19 US US324985A patent/US1375455A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2679455A (en) * | 1951-10-06 | 1954-05-25 | Climax Molybdenum Co | Methods for heat-treating molybdenum-base alloys |
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