US1512191A - Hard tool and implement and in process of making - Google Patents

Hard tool and implement and in process of making Download PDF

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Publication number
US1512191A
US1512191A US609337A US60933722A US1512191A US 1512191 A US1512191 A US 1512191A US 609337 A US609337 A US 609337A US 60933722 A US60933722 A US 60933722A US 1512191 A US1512191 A US 1512191A
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US
United States
Prior art keywords
carbide
metal
making
implement
hard tool
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
Application number
US609337A
Inventor
Baumhauer Heinrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24440365&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US1512191(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by General Electric Co filed Critical General Electric Co
Priority to US609337A priority Critical patent/US1512191A/en
Application granted granted Critical
Publication of US1512191A publication Critical patent/US1512191A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • 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
    • Y10S76/00—Metal tools and implements, making
    • Y10S76/11—Tungsten and tungsten carbide
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/27—Cutters, for shaping comprising tool of specific chemical composition
    • 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
    • Y10T428/12007—Component of composite having metal continuous phase interengaged with nonmetal continuous phase

Definitions

  • My invention relates to hard tools and implements and the process of making them.
  • I-Ieretofore devices of the above character have been made of carbide of tungsten or molybdenum but they have proven too brittle and too porous and consequently are not satisfactory.
  • drawing blocks for the manufacture of tungsten wires made from material of-the above character have been quite unsatisfactory.
  • the implement may be obtained in either of several ways, for example, the carbide itself may be em ployed or a mixture of carbon and the car'- bide producing element may be pressed, after which the article may be, sintered. Also the element may be vbrought to, the desired form without carbon by sintering the same to a non-dense form" and then carburizing.
  • the carburizing can. be done by' saturating with substances which after glowing leave carbon. Asan example of such substances we have sugar, tar and the like.
  • the article is'then heated.
  • the carburizing may also be done by heating in a a carburizing atmosphere such as illuminat ing gas, carbon inonoxide, etc., or by heating while packed in carbon dust and the like.
  • a metal must be one which is more easily fusible than the carbide.
  • 'A metal which is adapted which consists in impregnating the pores of for this purpose is, for example, iron.
  • the carbide surface to be exposed to the metal is made as large as possible.
  • the treatment with the molten metal may beblocks for the manufacture of wire froni such hard metals as tungsten, molybdenum and the like. Thismaterial is also suitable for tools and other purposes.
  • a tool for working hard metals made from a tungsten carbide with its pores saturated with a metal.
  • I 7 A tool made from a carbide impregnated with a metal.

Description

Patented @ct. 2i, 3%24.
rates HEINRICH BAUMHAUEB, OF CEARLOTTENBURG, NEAR BERLIN, GERM, ASSIGNOR T GENERAL ELECTRIC COMPANY, CO-MORA'I'ION OF NEW YORK.
HARD TOOL AND DWIPLEMEN'I' AND IN PROCESS 0F MAKING.
No Drawing.
To 0111 whom it may concern:
Be it .known that I, HEINRICH BAUM- HAUER, a citizen of the German Republic, residing at Charlottenburg, near Berlin, Germany, have invented certain new and useful Improvements in Hard Tools and Implements and in Processes of Making, of which the following is a specification.
My invention relates to hard tools and implements and the process of making them. I-Ieretofore devices of the above character have been made of carbide of tungsten or molybdenum but they have proven too brittle and too porous and consequently are not satisfactory. In particular, drawing blocks for the manufacture of tungsten wires made from material of-the above character have been quite unsatisfactory.
Therefore, itis one of the objects of my invention to treat the implement made from such ca'rbide so as to render it free from the foregoing objections, and to provide tools that may be used satisfactorily for drawing,
wire from tungsten and other elements of similar hardness.
The details of my invention are hereinafter more fully set forth and claimed. In the process of my invention the implement may be obtained in either of several ways, for example, the carbide itself may be em ployed or a mixture of carbon and the car'- bide producing element may be pressed, after which the article may be, sintered. Also the element may be vbrought to, the desired form without carbon by sintering the same to a non-dense form" and then carburizing. The carburizing can. be done by' saturating with substances which after glowing leave carbon. Asan example of such substances we have sugar, tar and the like. After the carburizing process is complete, the article is'then heated. The carburizing may also be done by heating in a a carburizing atmosphere such as illuminat ing gas, carbon inonoxide, etc., or by heating while packed in carbon dust and the like.
The porous carbide body thus formed-is then saturated with a metal. Such a metal must be one which is more easily fusible than the carbide. 'A metal which is adapted which consists in impregnating the pores of for this purpose is, for example, iron. By
this operation, the iron or other similar' metal is brought into contact with the sur- I face of the carbide body, the whole being heated to the meltingpoint of the iron or Application filed December 27, 1922. Serial No. 569,837.
- other metal, thereby permitting the iron or such metal to soak into the carbide, the latter absorbing the molten metal.
In order to facilitate the absorption process, the carbide surface to be exposed to the metal is made as large as possible. In
the process, after the first soaking operation," the treatment with the molten metal may beblocks for the manufacture of wire froni such hard metals as tungsten, molybdenum and the like. Thismaterial is also suitable for tools and other purposes.
What I claim as new and desire to secure by Letters Patent of the United States, is-
1 The processof treating a metal carbide which consists in saturating the pores of the carbide with a metal. 7
2. The p1 ocess of treating a metal carbide which consists in saturating the pores of the carbide with iron.
3. The process of treating a porous sin tered piece of tungsten which consists in first Sllb]6CtlI1g the tungsten to the carburizing process and then saturating the pores of the carbide with a metal.
4. A tool for working hard metals made from a carbide with its pores saturated with a metal. V
i 5. A tool for working hard metals made from a tungsten carbide with its pores saturated with a metal.
6. The process of treating a carbide which consists in impregnating the pores of the carbide with a metal.-
I 7. A tool made from a carbide impregnated with a metal.
8. The process of treating a metal carbide the carbide with a metal.-
In witness whereof, I have hereunto set my hand this 4th day of December, 1922.
HEINRICH BAUMHAUER.
US609337A 1922-12-27 1922-12-27 Hard tool and implement and in process of making Expired - Lifetime US1512191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US609337A US1512191A (en) 1922-12-27 1922-12-27 Hard tool and implement and in process of making

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US609337A US1512191A (en) 1922-12-27 1922-12-27 Hard tool and implement and in process of making

Publications (1)

Publication Number Publication Date
US1512191A true US1512191A (en) 1924-10-21

Family

ID=24440365

Family Applications (1)

Application Number Title Priority Date Filing Date
US609337A Expired - Lifetime US1512191A (en) 1922-12-27 1922-12-27 Hard tool and implement and in process of making

Country Status (1)

Country Link
US (1) US1512191A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754988C (en) * 1930-08-22 1952-10-20 Siemens & Halske A G Hard alloy produced by pressing and sintering
US2697043A (en) * 1950-10-24 1954-12-14 Fmc Corp Wear resisting material
US2753261A (en) * 1952-09-30 1956-07-03 Sintercast Corp America Sintering process for forming a die
DE945970C (en) * 1936-06-15 1956-07-19 Gen Motors Corp Process for the production of plain bearings and brake shoes or the like from composite metal
US2757108A (en) * 1953-09-30 1956-07-31 Westinghouse Electric Corp Surface hardening of molybdenumcobalt alloys
WO2012138916A1 (en) 2011-04-06 2012-10-11 Esco Corporation Hardfaced wearpart using brazing and associated method and assembly for manufacturing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754988C (en) * 1930-08-22 1952-10-20 Siemens & Halske A G Hard alloy produced by pressing and sintering
DE945970C (en) * 1936-06-15 1956-07-19 Gen Motors Corp Process for the production of plain bearings and brake shoes or the like from composite metal
US2697043A (en) * 1950-10-24 1954-12-14 Fmc Corp Wear resisting material
US2753261A (en) * 1952-09-30 1956-07-03 Sintercast Corp America Sintering process for forming a die
US2757108A (en) * 1953-09-30 1956-07-31 Westinghouse Electric Corp Surface hardening of molybdenumcobalt alloys
WO2012138916A1 (en) 2011-04-06 2012-10-11 Esco Corporation Hardfaced wearpart using brazing and associated method and assembly for manufacturing
EP3885132A1 (en) 2011-04-06 2021-09-29 ESCO Group LLC Hardfaced wearpart

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