US1648678A - Composite metal article - Google Patents
Composite metal article Download PDFInfo
- Publication number
- US1648678A US1648678A US82169A US8216926A US1648678A US 1648678 A US1648678 A US 1648678A US 82169 A US82169 A US 82169A US 8216926 A US8216926 A US 8216926A US 1648678 A US1648678 A US 1648678A
- Authority
- US
- United States
- Prior art keywords
- particles
- composite metal
- metal article
- spindle
- magnetic
- 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
- 239000002131 composite material Substances 0.000 title description 6
- 239000002184 metal Substances 0.000 title description 6
- 239000002245 particle Substances 0.000 description 12
- 238000010276 construction Methods 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 239000002923 metal particle Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
Definitions
- My present invention relates to the construction of metal bodies from powdered material, and more particularly to bodies especially adapted for electrical purposes 6 such as magnetic cores or resistance elements.
- the object of my invention is to provide a. construction whereby this desirable feature may be attained.
- spindle shape I mean shat the metal particles are approximately circular in cross section and taper from the middle toward each end.
- F ig. 1 is an enlarged view of a portion of an article made of round particles of different sizes and Fig. 2 is a similar view of an article made of spindle shaped particles.
- a composite metal body made up of closely compacted spindle-shaped particles of metal.
- a composite magnetic body made up of closely compacted spindle-shaped particles 5 of magnetic material.
- a composite magnetic body largely made up of closely con'ipacted particles of magnetic material, the greater part of said particles being approximately spindlcshaped.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Finger-Pressure Massage (AREA)
- Toys (AREA)
Description
Nov. 8, 192 7.
W. EHLERS COMPOSITE METAL ARTICLE Filed Jan. 18. 1926 Inve ntor. \A/ClltheT Ehler's, by His Attorney.
Patented Nov. '8, 1927.
UNITED STATES PATENT OFFICE.
WALTHER EHLERS, F BERLIN, GERMANY, ASSIGNOR TO GENERAL ELECTRIC COM- PANY, A CORPORATION OF NEW YORK.
COMPOSITE METAL ARTICLE.
Application filed January 18, 1926, Serial No. 82,169, and in Germany February 4, 1925.
My present invention relates to the construction of metal bodies from powdered material, and more particularly to bodies especially adapted for electrical purposes 6 such as magnetic cores or resistance elements.
In the construction of such bodies, particularly for magnetic pu oses. it is desirable that the space OccllPled by the body 10 shall be filled as completely as possible with the magnetic material.
The object of my invention is to provide a. construction whereby this desirable feature may be attained.
It has been proposed heretofore to employ powder particles of various shapes and sizes in the construction of articles of the class described such for example as round particles of different sizes as well as flaky particles.
I have found, however, that a better ntili zation of the space may be obtained by the use of metal particles all of which or the greater part of which are of approximately spindle shape. By the terms spindle shape I mean shat the metal particles are approximately circular in cross section and taper from the middle toward each end.
In the accompanying drawing, F ig. 1 is an enlarged view of a portion of an article made of round particles of different sizes and Fig. 2 is a similar view of an article made of spindle shaped particles.
It is obvious from an inspection of these figures that the spindle shaped particles on account of their pointed ends render possible a better utilization of the space than do the round particles. By pressing the spindle shaped particles together there may be obtained a firm and compact body which in the case where magnetic materials are used will have a good degree of permeability.
What I claim as new and desire to secure by Letters Patent of the United States is: 1. A composite metal body made up of closely compacted spindle-shaped particles of metal.
2. A composite magnetic body made up of closely compacted spindle-shaped particles 5 of magnetic material.
3. A composite magnetic body largely made up of closely con'ipacted particles of magnetic material, the greater part of said particles being approximately spindlcshaped.
In witness whereof, I have hereunto set my hand this 17th day of December, 1925;
WALTHER EHLERS.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1648678X | 1925-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1648678A true US1648678A (en) | 1927-11-08 |
Family
ID=7738190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US82169A Expired - Lifetime US1648678A (en) | 1925-02-04 | 1926-01-18 | Composite metal article |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1648678A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2489116A (en) * | 1946-05-03 | 1949-11-22 | Sk Wellman Co | Method of treating metallic powders |
| US2676882A (en) * | 1950-05-31 | 1954-04-27 | Kennecott Copper Corp | Method for recovering refractory metals |
| US2938791A (en) * | 1949-05-26 | 1960-05-31 | Blainey Alan | Method of producing shaped bodies from powdered metals |
| US2992172A (en) * | 1951-11-26 | 1961-07-11 | Blainey Alan | Fuel elements for nuclear reactors |
| US3086285A (en) * | 1957-11-05 | 1963-04-23 | Engelhard Ind Inc | Electrical contacts |
| US3219490A (en) * | 1960-05-13 | 1965-11-23 | Dow Chemical Co | Method of extrusion and extrusion billet therefor |
-
1926
- 1926-01-18 US US82169A patent/US1648678A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2489116A (en) * | 1946-05-03 | 1949-11-22 | Sk Wellman Co | Method of treating metallic powders |
| US2938791A (en) * | 1949-05-26 | 1960-05-31 | Blainey Alan | Method of producing shaped bodies from powdered metals |
| US2676882A (en) * | 1950-05-31 | 1954-04-27 | Kennecott Copper Corp | Method for recovering refractory metals |
| US2992172A (en) * | 1951-11-26 | 1961-07-11 | Blainey Alan | Fuel elements for nuclear reactors |
| US3086285A (en) * | 1957-11-05 | 1963-04-23 | Engelhard Ind Inc | Electrical contacts |
| US3219490A (en) * | 1960-05-13 | 1965-11-23 | Dow Chemical Co | Method of extrusion and extrusion billet therefor |
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