US1986197A - Metallic composition - Google Patents
Metallic composition Download PDFInfo
- Publication number
- US1986197A US1986197A US597921A US59792132A US1986197A US 1986197 A US1986197 A US 1986197A US 597921 A US597921 A US 597921A US 59792132 A US59792132 A US 59792132A US 1986197 A US1986197 A US 1986197A
- Authority
- US
- United States
- Prior art keywords
- metal
- particles
- copper
- coated
- per cent
- 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/934—Electrical process
- Y10S428/935—Electroplating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12181—Composite powder [e.g., coated, etc.]
Definitions
- the rigid bodies so formed generally having in greater or less degree the properties of cast or forged metal of the same chemical composition.
- the ments for use in manufacture of tungsten filaelectric light bulbs is generally .carried out by compressing powdered metallic tungsten in a mold to give the shape of a bar.
- Thisv bar is then heated in a non-oxidizing or reducing atmosphere and is then swedged or forged to develop the desired physical properties.
- the metal is then drawn wire.
- the particle size need not go larger than that which will pass an is not limitative.
- I With a suitably finely divided metal, I now coat the particles with another metal. For this, I may deposit a metallic coating on the particles by immersing them in a suitable solution of a metallic salt. For example, I may coat particles of nickel, iron, etc. by immersion in a solution of copper sulphate. Another and quite generally applicable procedure which I prefer is electro-deposition or plating onto the particles. For this, I may place the metal powder to be coated in a container, which may conveniently take the form of a rotatable chainber 2 mounted in any suitable way, as by shaft 3 on an incline, and having a driving gear 4 for suitable rotation.
- a container which may conveniently take the form of a rotatable chainber 2 mounted in any suitable way, as by shaft 3 on an incline, and having a driving gear 4 for suitable rotation.
- the plating solution 5 covers the powdered metal 6 in the bottom of the container, and a cathode 7 and an anode 8 are suitably arranged and supported, for instance as suspended from a support 9 with suitable insulation 10, the cathode extending well into the mass of powdered metal, while the anode is supported at a working distance up in the bath.
- Leads 11, 12, from a source of direct current supply the power requirements.
- the amountof metal deposited, by whatsoever means; on the metal particles, can be controlled as desired and percentage compositions can be prepared in wide range. Again, and particularly where employing the plating type of deposit, a
- metals such as tin, cadmium, zinc, lead, copper, nickel, chromium, cobalt, silver, gold, the platinum group, etc.
- Desirable combinations for instance are copper particles having tin plated thereon to the amount of 8-12 per cent, or copper having nickel deposited thereon to the extent of -60 per cent. That is, a combination of copper 92-88 per cent and tin 8-12 per cent may thus readily be had, or for instance, copper 30-40 per cent and nickel 70-60 per cent. More than one metal coating may be applied, and various complex combinations may thus be built up. For instance, a combination of copper 88-90 per cent, with tin -8 per cent and lead 2 per cent. Again, such combinations as iron and nickel, iron, nickel and chromium, copper and zinc, copper, zinc and tin, copper, zinc, tin and antimony, etc. may all readily be made.
- metal-coated metallic particles so, prepared may be employed as such for some uses.
- metal particles for bronzing liquids having special utilities and advantages may be thus prepared, it being possible to apply coats of even the noble metals in such an economical manner on a base-particle as to attain a wide range of results.
- metal-coated particles of one kind may be compressed to a desired shape, and metal coated particles of another kind may be separately compressed to desired form, and these two blanks may then be compressed together, furthering the action.
- a blank or article of one combination of coated metal particles may be pressed up, and a facing or surfacing of another combination of coated metal particles may be pressed thereagainst, and so on variously.
- the amount of pressure may vary somewhat in accordance with the metals being operated with, For instance, wheredealing with rather soft metals, or where great density of final product is not desired, pressures of 10,000 pounds per square inch or less may be employed, and up to 100,000 pounds per square inch. With hard metals, or where great density of product is desired, pressures on the order of 50,000-150,000 pounds or more per square inch may be employed.
- Copper powder coated with tin to the extent of about 8-9 per cent is compressed in a mold under a pressure of about 25,000 pounds per square inch, and is heated to a temperature of 700 C. for an hour.
- a process of the character described which comprises electro-depositing metal upon particles of another metal, compacting and heating such particles into a body to form an alloy of said metals.
- a process of the character described which comprises electro-depositing one metal upon particles of a second metal, compressing and heating a mass of such metal coated metallic particles to form an alloy, separately electro-depositing a third metal upon particles of a fourth metal, compressing and heating a mass of such metal-coated particles to form an alloy, bringing said two masses together, and finally compressing.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Description
Jan. 1, 1935. 'w. J. HARSHAW METALLIC COMPOSITION F lled" March 10, 1932 INVENTOR.
Patented Jan. I, 1935 UNITED STATES PATENT OFFICE 1,986,197 METALLIC COMPOSITION The compression of metal powders,
William J. Harshaw,
Shaker Heights, Ohio, assignor to The Harshaw Chemical Company,
Cleveland, Ohio, a corporation of Ohio Application March 10,
2 Claims.
usually followed by heat, with or without mechanical working, in order to form rigid aggregates having definite size and shape,
has been practiced for many years, the rigid bodies so formed generally having in greater or less degree the properties of cast or forged metal of the same chemical composition.
' For example, the ments for use in manufacture of tungsten filaelectric light bulbs is generally .carried out by compressing powdered metallic tungsten in a mold to give the shape of a bar.
Thisv bar is then heated in a non-oxidizing or reducing atmosphere and is then swedged or forged to develop the desired physical properties.
The metal is then drawn wire.
through dies to form Another example of the consolidation of powdered metal has been known in the manufacture of bronze bearings and bushings.
In this,
powdered copper and tin in a desired proportion .are mixed together, and the mixture is formed to shape a die under high pressure.
Suitable heat is then applied to further the action. In this process the extent to which strength of product is attained is limited by the fact that interaction between adjacent metal particles occurs only where such particles. contact, and with irregular particles the points of contact are inherently quite limited, notwithstanding the utmost practical pressure that can be applied. Such products then are lacking in a desired mechanical strength. In accordance with the present invention however, it now becomes possible to work up powdered metals to the production of novel metallic products, and the attainment of physical properties available for a wide range of usage.
To the accomplishment of the foregoing and related ends, the invention, then, comprises the features hereinafter larly pointed out in fully described and particuthe claims, the following description and the annexed drawing setting forth in detail certain embodiments of the invention,
these being indicative however, of but a few of the various. ways in which the principle of the invention may be employed.
In said annexed drawing:
For the purposes of employ metals in divided condition,
somewhat upon the the present invention. I powdered form, that is, finely the particular size depending products desired. In general,
the particle size need not go larger than that which will pass an is not limitative.
mesh screen, although this The lower limits of size may be 1932, Serial No. 597,921 (01. 204-1) again of considerable range, although in practice it is sometimes advantageous to remove such exceedingly fine particles as are almost impalpable in size. For optimum conditions, particles that will pass a mesh screen and be retained on 5 approximately a 400 mesh screen, are satisfactory. These metal powders can be produced in various ways, such as by reduction of metallic compounds, oxides, formates, oxalates, etc.; also by spray atomization of molten metal, or by electrolytic deposit from solutions by using higher current densities than are normal to obtain smooth deposits. Grinding, stamping, sawing, etc. are other possible means for the production of the metal powder to be employed. I
With a suitably finely divided metal, I now coat the particles with another metal. For this, I may deposit a metallic coating on the particles by immersing them in a suitable solution of a metallic salt. For example, I may coat particles of nickel, iron, etc. by immersion in a solution of copper sulphate. Another and quite generally applicable procedure which I prefer is electro-deposition or plating onto the particles. For this, I may place the metal powder to be coated in a container, which may conveniently take the form of a rotatable chainber 2 mounted in any suitable way, as by shaft 3 on an incline, and having a driving gear 4 for suitable rotation. The plating solution 5 covers the powdered metal 6 in the bottom of the container, and a cathode 7 and an anode 8 are suitably arranged and supported, for instance as suspended from a support 9 with suitable insulation 10, the cathode extending well into the mass of powdered metal, while the anode is supported at a working distance up in the bath. Leads 11, 12, from a source of direct current supply the power requirements.
The amountof metal deposited, by whatsoever means; on the metal particles, can be controlled as desired and percentage compositions can be prepared in wide range. Again, and particularly where employing the plating type of deposit, a
ywide range of combinations may be had. For
may be advantageously employed for coating the particles I may mention metals such as tin, cadmium, zinc, lead, copper, nickel, chromium, cobalt, silver, gold, the platinum group, etc. Desirable combinations for instance, are copper particles having tin plated thereon to the amount of 8-12 per cent, or copper having nickel deposited thereon to the extent of -60 per cent. That is, a combination of copper 92-88 per cent and tin 8-12 per cent may thus readily be had, or for instance, copper 30-40 per cent and nickel 70-60 per cent. More than one metal coating may be applied, and various complex combinations may thus be built up. For instance, a combination of copper 88-90 per cent, with tin -8 per cent and lead 2 per cent. Again, such combinations as iron and nickel, iron, nickel and chromium, copper and zinc, copper, zinc and tin, copper, zinc, tin and antimony, etc. may all readily be made.
The metal-coated metallic particles so, prepared may be employed as such for some uses. For instance, metal particles for bronzing" liquids having special utilities and advantages may be thus prepared, it being possible to apply coats of even the noble metals in such an economical manner on a base-particle as to attain a wide range of results.
By compressing a mass of the coated metal particles, articles of desired form may readily be had, whether blanks to be further worked up or final forms for finishing. For instance, copper particles coated with zinc or tin or both may be compressed to form articles having the characteristics of bronzes, and in various desired utilitarian or ornamental forms. Again, metal particles in suitable coated combination may be compressed to form bearings, and here a degree of porosity may be preserved if desired, making it possible to further the oil take-up. By vacuum impregnation an-oil absorption for instance practically up to 100 per cent by volume may be readily attained.
With the pressing, or subsequently, I, in most instances, also apply heat, the temperature being such as generally to bring about fusion of at least the lower melting component. By reason of the very intimate contact of the coated-on metal with the basal particle, interaction or alloying proceeds readily and may be carried through as thoroughly as desired. A structure of particular strength may thus be had, as contrasted with the more or less partitive and superficial action attainable where only dissimilar metal particles are compressed.
with this process, it also now becomes feasible to build up more composite articles, whether a relatively thin surfacing, or a body-to-body consolidation be involved. For instance, metal-coated particles of one kind may be compressed to a desired shape, and metal coated particles of another kind may be separately compressed to desired form, and these two blanks may then be compressed together, furthering the action. A blank or article of one combination of coated metal particles may be pressed up, and a facing or surfacing of another combination of coated metal particles may be pressed thereagainst, and so on variously.
The amount of pressure may vary somewhat in accordance with the metals being operated with, For instance, wheredealing with rather soft metals, or where great density of final product is not desired, pressures of 10,000 pounds per square inch or less may be employed, and up to 100,000 pounds per square inch. With hard metals, or where great density of product is desired, pressures on the order of 50,000-150,000 pounds or more per square inch may be employed.
As an example: Copper powder coated with tin to the extent of about 8-9 per cent is compressed in a mold under a pressure of about 25,000 pounds per square inch, and is heated to a temperature of 700 C. for an hour.
homogeneous in alloy formation.
Other modes of applying the principle of my invention may be employed, change being made as regards the details described, provided the features stated in any of the following claims, or the equivalent. of such, be employed. I,
I therefore particularly point out and distinctly claim as my invention:-
1. A process of the character described, which comprises electro-depositing metal upon particles of another metal, compacting and heating such particles into a body to form an alloy of said metals.
2. A process of the character described, which comprises electro-depositing one metal upon particles of a second metal, compressing and heating a mass of such metal coated metallic particles to form an alloy, separately electro-depositing a third metal upon particles of a fourth metal, compressing and heating a mass of such metal-coated particles to form an alloy, bringing said two masses together, and finally compressing.
WILLIAM J. HARSHAW.
On microscopic examina- 'tion, the material is found substantially entirely
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US597921A US1986197A (en) | 1932-03-10 | 1932-03-10 | Metallic composition |
FR736520D FR736520A (en) | 1932-03-10 | 1932-05-02 | Metal compositions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US597921A US1986197A (en) | 1932-03-10 | 1932-03-10 | Metallic composition |
Publications (1)
Publication Number | Publication Date |
---|---|
US1986197A true US1986197A (en) | 1935-01-01 |
Family
ID=24393472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US597921A Expired - Lifetime US1986197A (en) | 1932-03-10 | 1932-03-10 | Metallic composition |
Country Status (2)
Country | Link |
---|---|
US (1) | US1986197A (en) |
FR (1) | FR736520A (en) |
Cited By (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2425919A (en) * | 1943-07-28 | 1947-08-19 | Cutler Hammer Inc | Method of making metal molding material |
US2444620A (en) * | 1944-06-23 | 1948-07-06 | Brush Dev Co | Damping means for mechanical vibratory devices |
US2497268A (en) * | 1944-07-26 | 1950-02-14 | Electro Chimie Metal | Permanent magnets and method for the obtention of the same |
US2585430A (en) * | 1947-03-01 | 1952-02-12 | Gen Motors Corp | Method of making bearings |
US2592321A (en) * | 1943-03-01 | 1952-04-08 | Electro Chimie Metal | Method for the manufacture of agglomerable iron powder |
US2610118A (en) * | 1948-06-17 | 1952-09-09 | Glidden Co | Sintered iron bodies and processes therefor |
US2631252A (en) * | 1950-03-30 | 1953-03-10 | Speer Carbon Company | Connection for carbon brushes |
US2642654A (en) * | 1946-12-27 | 1953-06-23 | Econometal Corp | Electrodeposited composite article and method of making the same |
US2646457A (en) * | 1950-06-30 | 1953-07-21 | Accumulateurs Fixes & De Tract | Electrode for alkaline batteries |
US2646456A (en) * | 1951-07-10 | 1953-07-21 | Accumulateurs Fixes & De Tract | Fabrication of storage battery plates |
US2651105A (en) * | 1942-04-07 | 1953-09-08 | Electro Chimie Metal | Manufacture of permanent magnets |
US2679223A (en) * | 1949-09-16 | 1954-05-25 | Edmond G Franklin | Soldering instrument |
US2679683A (en) * | 1949-12-15 | 1954-06-01 | Gen Motors Corp | Porous metal element |
US2724174A (en) * | 1950-07-19 | 1955-11-22 | Gen Electric | Molded magnet and magnetic material |
US2729559A (en) * | 1952-08-01 | 1956-01-03 | Matsukawa Tatsuo | Method of manufacturing electric contact material |
US2809732A (en) * | 1950-11-16 | 1957-10-15 | Vickers Inc | Magnetic particle coupling device with nickel and nickel-coated iron particles |
US2809731A (en) * | 1950-11-16 | 1957-10-15 | Vickers Inc | Magnetic particle coupling device with nickel-coated iron particles |
US2842505A (en) * | 1954-07-20 | 1958-07-08 | Ca Nat Research Council | Process for preparation of silver alloy catalyst |
US2848313A (en) * | 1955-05-04 | 1958-08-19 | Takahashi Rintaro | Method of chemically disintegrating and pulverizing solid material |
US3019103A (en) * | 1957-11-04 | 1962-01-30 | Du Pont | Process for producing sintered metals with dispersed oxides |
US3161478A (en) * | 1959-05-29 | 1964-12-15 | Horst Corp Of America V D | Heat resistant porous structure |
US3202488A (en) * | 1964-03-04 | 1965-08-24 | Chomerics Inc | Silver-plated copper powder |
US3206385A (en) * | 1960-07-12 | 1965-09-14 | Gen Electric | Dispersion hardening |
US3254970A (en) * | 1960-11-22 | 1966-06-07 | Metco Inc | Flame spray clad powder composed of a refractory material and nickel or cobalt |
US3425813A (en) * | 1964-08-18 | 1969-02-04 | Pfizer & Co C | Metal coated stainless steel powder |
US3428543A (en) * | 1964-05-09 | 1969-02-18 | Starck Hermann C Fa | Composite powders and apparatus for the production of the same |
US3520680A (en) * | 1968-07-22 | 1970-07-14 | Pfizer & Co C | Process of producing steel |
US3651306A (en) * | 1969-04-28 | 1972-03-21 | Nicholas D Glyptis | Electric soldering gun and tip therefor |
US3725308A (en) * | 1968-12-10 | 1973-04-03 | M Ostolski | Electrically conductive mass |
US3920410A (en) * | 1971-04-28 | 1975-11-18 | Sherritt Gordon Mines Ltd | Cobalt coated composite powder |
JPS5157609A (en) * | 1974-11-18 | 1976-05-20 | Fujitsu Ltd | Aruminiumu dokeishoketsuzairyo |
US3994785A (en) * | 1975-01-09 | 1976-11-30 | Rippere Ralph E | Electrolytic methods for production of high density copper powder |
US4014757A (en) * | 1974-09-17 | 1977-03-29 | Office National D'etudes Et De Recherches Aerospatiales (O.N.E.R.A.) | Method for preparing fibrous metal materials by electrolytic deposition and the resulting fibrous metal material |
US4046643A (en) * | 1975-09-09 | 1977-09-06 | Rippere Ralph E | Production of multi-metal particles for powder metallurgy alloys |
US4050933A (en) * | 1973-02-21 | 1977-09-27 | Stanadyne, Inc. | Impervious metal object and method of making the same |
US4115210A (en) * | 1974-04-12 | 1978-09-19 | Compagnie Royale Asturienne Des Mines | Method of electrolytically preparing a metal in pulverulent form |
US4120758A (en) * | 1975-09-09 | 1978-10-17 | Rippere Ralph E | Production of powder metallurgy alloys |
EP0011981A1 (en) * | 1978-11-24 | 1980-06-11 | Ford Motor Company Limited | Method of manufacturing powder compacts |
US4227928A (en) * | 1978-05-01 | 1980-10-14 | Kennecott Copper Corporation | Copper-boron carbide composite particle and method for its production |
US4431604A (en) * | 1980-01-24 | 1984-02-14 | Nippon Gakki Seizo Kabushiki Kaisha | Process for producing hard magnetic material |
US4459327A (en) * | 1979-08-24 | 1984-07-10 | Kennecott Corporation | Method for the production of copper-boron carbide composite |
US4824734A (en) * | 1983-06-02 | 1989-04-25 | Kawasaki Steel Corp. | Tin-containing iron base powder and process for making |
US4833040A (en) * | 1987-04-20 | 1989-05-23 | Trw Inc. | Oxidation resistant fine metal powder |
US4836979A (en) * | 1988-06-14 | 1989-06-06 | Inco Limited | Manufacture of composite structures |
US4975333A (en) * | 1989-03-15 | 1990-12-04 | Hoeganaes Corporation | Metal coatings on metal powders |
US5240742A (en) * | 1991-03-25 | 1993-08-31 | Hoeganaes Corporation | Method of producing metal coatings on metal powders |
US20030059642A1 (en) * | 2001-09-27 | 2003-03-27 | Zequn Mei | Method of making lead-free solder and solder paste with improved wetting and shelf life |
WO2012016317A1 (en) * | 2010-08-06 | 2012-02-09 | S-421 Holdings Ltd. | Drill bit alloy |
-
1932
- 1932-03-10 US US597921A patent/US1986197A/en not_active Expired - Lifetime
- 1932-05-02 FR FR736520D patent/FR736520A/en not_active Expired
Cited By (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2651105A (en) * | 1942-04-07 | 1953-09-08 | Electro Chimie Metal | Manufacture of permanent magnets |
US2592321A (en) * | 1943-03-01 | 1952-04-08 | Electro Chimie Metal | Method for the manufacture of agglomerable iron powder |
US2425919A (en) * | 1943-07-28 | 1947-08-19 | Cutler Hammer Inc | Method of making metal molding material |
US2444620A (en) * | 1944-06-23 | 1948-07-06 | Brush Dev Co | Damping means for mechanical vibratory devices |
US2497268A (en) * | 1944-07-26 | 1950-02-14 | Electro Chimie Metal | Permanent magnets and method for the obtention of the same |
US2642654A (en) * | 1946-12-27 | 1953-06-23 | Econometal Corp | Electrodeposited composite article and method of making the same |
US2585430A (en) * | 1947-03-01 | 1952-02-12 | Gen Motors Corp | Method of making bearings |
US2610118A (en) * | 1948-06-17 | 1952-09-09 | Glidden Co | Sintered iron bodies and processes therefor |
US2679223A (en) * | 1949-09-16 | 1954-05-25 | Edmond G Franklin | Soldering instrument |
US2679683A (en) * | 1949-12-15 | 1954-06-01 | Gen Motors Corp | Porous metal element |
US2631252A (en) * | 1950-03-30 | 1953-03-10 | Speer Carbon Company | Connection for carbon brushes |
US2646457A (en) * | 1950-06-30 | 1953-07-21 | Accumulateurs Fixes & De Tract | Electrode for alkaline batteries |
US2724174A (en) * | 1950-07-19 | 1955-11-22 | Gen Electric | Molded magnet and magnetic material |
US2809732A (en) * | 1950-11-16 | 1957-10-15 | Vickers Inc | Magnetic particle coupling device with nickel and nickel-coated iron particles |
US2809731A (en) * | 1950-11-16 | 1957-10-15 | Vickers Inc | Magnetic particle coupling device with nickel-coated iron particles |
US2646456A (en) * | 1951-07-10 | 1953-07-21 | Accumulateurs Fixes & De Tract | Fabrication of storage battery plates |
US2729559A (en) * | 1952-08-01 | 1956-01-03 | Matsukawa Tatsuo | Method of manufacturing electric contact material |
US2842505A (en) * | 1954-07-20 | 1958-07-08 | Ca Nat Research Council | Process for preparation of silver alloy catalyst |
US2848313A (en) * | 1955-05-04 | 1958-08-19 | Takahashi Rintaro | Method of chemically disintegrating and pulverizing solid material |
US3019103A (en) * | 1957-11-04 | 1962-01-30 | Du Pont | Process for producing sintered metals with dispersed oxides |
US3161478A (en) * | 1959-05-29 | 1964-12-15 | Horst Corp Of America V D | Heat resistant porous structure |
US3206385A (en) * | 1960-07-12 | 1965-09-14 | Gen Electric | Dispersion hardening |
US3254970A (en) * | 1960-11-22 | 1966-06-07 | Metco Inc | Flame spray clad powder composed of a refractory material and nickel or cobalt |
US3202488A (en) * | 1964-03-04 | 1965-08-24 | Chomerics Inc | Silver-plated copper powder |
US3428543A (en) * | 1964-05-09 | 1969-02-18 | Starck Hermann C Fa | Composite powders and apparatus for the production of the same |
US3425813A (en) * | 1964-08-18 | 1969-02-04 | Pfizer & Co C | Metal coated stainless steel powder |
US3520680A (en) * | 1968-07-22 | 1970-07-14 | Pfizer & Co C | Process of producing steel |
US3725308A (en) * | 1968-12-10 | 1973-04-03 | M Ostolski | Electrically conductive mass |
US3651306A (en) * | 1969-04-28 | 1972-03-21 | Nicholas D Glyptis | Electric soldering gun and tip therefor |
US3920410A (en) * | 1971-04-28 | 1975-11-18 | Sherritt Gordon Mines Ltd | Cobalt coated composite powder |
US4050933A (en) * | 1973-02-21 | 1977-09-27 | Stanadyne, Inc. | Impervious metal object and method of making the same |
US4115210A (en) * | 1974-04-12 | 1978-09-19 | Compagnie Royale Asturienne Des Mines | Method of electrolytically preparing a metal in pulverulent form |
US4014757A (en) * | 1974-09-17 | 1977-03-29 | Office National D'etudes Et De Recherches Aerospatiales (O.N.E.R.A.) | Method for preparing fibrous metal materials by electrolytic deposition and the resulting fibrous metal material |
JPS5737642B2 (en) * | 1974-11-18 | 1982-08-11 | ||
JPS5157609A (en) * | 1974-11-18 | 1976-05-20 | Fujitsu Ltd | Aruminiumu dokeishoketsuzairyo |
US3994785A (en) * | 1975-01-09 | 1976-11-30 | Rippere Ralph E | Electrolytic methods for production of high density copper powder |
US4046643A (en) * | 1975-09-09 | 1977-09-06 | Rippere Ralph E | Production of multi-metal particles for powder metallurgy alloys |
US4120758A (en) * | 1975-09-09 | 1978-10-17 | Rippere Ralph E | Production of powder metallurgy alloys |
US4227928A (en) * | 1978-05-01 | 1980-10-14 | Kennecott Copper Corporation | Copper-boron carbide composite particle and method for its production |
EP0011981A1 (en) * | 1978-11-24 | 1980-06-11 | Ford Motor Company Limited | Method of manufacturing powder compacts |
US4459327A (en) * | 1979-08-24 | 1984-07-10 | Kennecott Corporation | Method for the production of copper-boron carbide composite |
US4431604A (en) * | 1980-01-24 | 1984-02-14 | Nippon Gakki Seizo Kabushiki Kaisha | Process for producing hard magnetic material |
US4824734A (en) * | 1983-06-02 | 1989-04-25 | Kawasaki Steel Corp. | Tin-containing iron base powder and process for making |
US4833040A (en) * | 1987-04-20 | 1989-05-23 | Trw Inc. | Oxidation resistant fine metal powder |
US4836979A (en) * | 1988-06-14 | 1989-06-06 | Inco Limited | Manufacture of composite structures |
US4975333A (en) * | 1989-03-15 | 1990-12-04 | Hoeganaes Corporation | Metal coatings on metal powders |
US5240742A (en) * | 1991-03-25 | 1993-08-31 | Hoeganaes Corporation | Method of producing metal coatings on metal powders |
US20030059642A1 (en) * | 2001-09-27 | 2003-03-27 | Zequn Mei | Method of making lead-free solder and solder paste with improved wetting and shelf life |
US6680128B2 (en) * | 2001-09-27 | 2004-01-20 | Agilent Technologies, Inc. | Method of making lead-free solder and solder paste with improved wetting and shelf life |
WO2012016317A1 (en) * | 2010-08-06 | 2012-02-09 | S-421 Holdings Ltd. | Drill bit alloy |
US9506296B2 (en) | 2010-08-06 | 2016-11-29 | Robert Kenneth Miller | Drill bit alloy |
Also Published As
Publication number | Publication date |
---|---|
FR736520A (en) | 1932-11-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1986197A (en) | Metallic composition | |
US2642654A (en) | Electrodeposited composite article and method of making the same | |
US4309457A (en) | Process of producing multilayer-coated composite powder | |
DE2116047C3 (en) | Process for coating metal objects with a binder-free metal layer | |
US6033622A (en) | Method for making metal matrix composites | |
US4404263A (en) | Laminated bearing material and process for making the same | |
CN106756214B (en) | A kind of copper-based bimetal bearing material of antifriction and preparation method thereof | |
JPS63140071A (en) | Thermal spraying material and powder containing composite powder | |
US2361211A (en) | Lubrication of dies | |
US2289614A (en) | Nickel clad ferrous article | |
EP4062076A1 (en) | Method for producing a sliding layer of a sliding-contact bearing using an alloy and/or a material | |
DE2132665A1 (en) | Process for producing composite parts | |
US2001134A (en) | Metal powder | |
CN109790867A (en) | Multilayer plain bearing element | |
DE2448738A1 (en) | Production of a composite - by coating a metal powder with another metal applying onto a carrier with a binder and sintering | |
US2398132A (en) | Process of forming metallic carbides and steel into finshed shapes | |
DE2432061C2 (en) | Flame spray material | |
US2294895A (en) | Copper powder | |
HU189862B (en) | Method for making electric contact | |
US2121194A (en) | Welding rod | |
EP0053301A2 (en) | Method of producing aluminium base sintered body containing graphite | |
US2977673A (en) | Method of forming composite metal bearings | |
US2379435A (en) | Bearing and the like | |
DE3018007A1 (en) | Composite powder contg. two complex alloys - used to provide coatings resisting abrasion, oxidn. and corrosion at high temps. | |
Raja et al. | A short note on manufacturing process of metal powders |