US3252828A - Carbide welding rod - Google Patents

Carbide welding rod Download PDF

Info

Publication number
US3252828A
US3252828A US298716A US29871663A US3252828A US 3252828 A US3252828 A US 3252828A US 298716 A US298716 A US 298716A US 29871663 A US29871663 A US 29871663A US 3252828 A US3252828 A US 3252828A
Authority
US
United States
Prior art keywords
rod
carbide
coating
metal
sintered
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
US298716A
Inventor
Joseph F Quaas
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.)
Eutectic Corp
Original Assignee
Eutectic Welding Alloys Corp
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
Application filed by Eutectic Welding Alloys Corp filed Critical Eutectic Welding Alloys Corp
Priority to US298716A priority Critical patent/US3252828A/en
Application granted granted Critical
Publication of US3252828A publication Critical patent/US3252828A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
    • B23K35/327—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C comprising refractory compounds, e.g. carbides
    • 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
    • Y10T428/12486—Laterally noncoextensive components [e.g., embedded, etc.]
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as steel]
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/298—Physical dimension

Definitions

  • This invention relates to a rod for depositing a carbideladen surface layer upon a parent metal, and it more particularly relates to such a rod which deposits heterogeously dispersed carbides.
  • An object of this invention is to provide a hard surfacing rod for depositing sintered carbide in conjunction with a minimum amount of additional metal.
  • Another object is to provide such a rod which deposits a hard surface that is particularly effective for cutting service.
  • a thin metal coatin ranging from 2 to 10% by weight of the ultimate rod and preferably from 4 to 7% lby Weight thereof is applied to a carbide core of the cast or preferably the sintered type.
  • a coating of 6% lby weight of the ultimate rod is particularly effective.
  • a sintered carbide core is a mass of fine refractory carbide particles compressed and sintered in Ithe presence of small amounts of a metallic binder such as cobalt, nickel, or molybdenum to fuse it together.
  • the applied coating metal is of a type which melts approximately from 1800-2870 C.
  • a sintered tungsten carbide core approximately ls inch and specifically 0.140 inch in diameter is accordingly chromium plated to a thickness ranging from y0.002 to 0.015 inch, vmost effectively from 0.005 to 0.010 inch and specifically to ⁇ 0.008 inch, to provide a protective coating that burns olf evenly with the carbide during deposition, even lby the atomic hydrogen process with its extreme concentration of high temperature heat.
  • the carbide particles are heterogeneously dispersed with minimum dilution in the parent metal to expose their edges and enhance their cutting action.
  • the coating also protects the sintered carbides from atmospheric corrosion during storage.
  • the protective coating of this invention may also be formed of high melting temperature refractory metals such as. colombium, vanadium, molybdenum and other metals or alloys thereof with melting points ranging approximately from 18002870 C.
  • high melting temperature refractory metal accordingly refers to each of said metals and also to combinations or alloys thereof. Some of these metals and combinations thereof ice cannot be effectively plated, and they are accordingly sprayed upon thecarbide rods.
  • FIG. 3 is a perspective View of a rod which is one embodiment of this invention.
  • IFIG. 4 is an enlarged cross-sectional View taken through FIG. 3 along the line 4 4.
  • chrome plated sintered tungsten carbide electrode of this invention is deposited upon a parent material such as mild steel :by the inert arc or atomic hydrogen process.
  • a parent material such as mild steel :by the inert arc or atomic hydrogen process.
  • a relatively heterogeneously dispersed array of carbide particles 10 are suspended in a matrix consisting of parent metal 12.
  • the edges 16 of carbide particles 10 are exposed to facilitate their eficierlt cutting action, and the chromium carbides and other alloys in the deposit help improve the Wear resistance of the overlay.
  • the rod 18 of this invention therefore provides a very dense carbide surface upon a parent material that may be used for various metal cutting operations despite its remarkably slight ⁇ coating 20 of high melting temperature metal upon carbide core 22.
  • a machine Shop may accordingly make its own tools by depositing carbide surfaces upon parent metals, such as steel, with this electrode.
  • Such a surface is extremely hard and wear-resistant and particularly possesses a relatively great red hardness, which is a significant property for cutting tools.
  • a carbide surfacing rod comprising a refractory car- Ibide core having a coating ranging approximately from 2-10% lby weight of said rod of a refractory metal compatible with deposition of said car-bide upon a parent metal surface and rnelting at a temperature ranging approximately from 1800-2870 C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Products (AREA)

Description

May 24, 1966 J. F. Q'UAAS 3,252,828
CARBIDE WELDING non Filed July 3o, 1965 2 sheets-sheet 1l 1'0 Ananas PART/ues 12 PARENT METAL MA1-mx Fyyfi 16 10 'fes INVENTUE JOS@ 72,]' vacas f/ Zai/ ATTQRNEY@ May 24, 19266 I J. F. QUAAs 3,252,828
l GARBIDE WELDING ROD Filed" July .'50, 1963 2 Sheets-Sheet 2 'Q n Temp Mcial C30/afi@ INVENTOR Joseph F Q was' ATTORNEYS United States Patent O York Filed July 30, 1963, Ser. No. 298,716 9 Claims. (Cl. 117-207) This application in a continuation-in-part of copending application Serial No. 183,637, filed March 29, 196.2. That application describes a rod incorporating sintered carbides in conjuction with amount of matrix metal that is relatively low in comparison with that formerly utilized with carbides. However, `that amount of matrix usually in the form of a tube is still appreciable, and a rod incorporating it applies a relatively homogeneous carbide surface layer which is advantageous for various hard surfacing but functions only fairly well as a cutting surface. The less matrix metal in a given rod, the more undiluted carbides can it deposit. However, heretofore a substantial amount of matrix metal was believed necessary for use as a molten liuid vehicle to facilitate the continuous and even deposit of sintered carbides.
This invention relates to a rod for depositing a carbideladen surface layer upon a parent metal, and it more particularly relates to such a rod which deposits heterogeously dispersed carbides.
An object of this invention is to provide a hard surfacing rod for depositing sintered carbide in conjunction with a minimum amount of additional metal.
Another object is to provide such a rod which deposits a hard surface that is particularly effective for cutting service.
In accordance with this invention a thin metal coatin ranging from 2 to 10% by weight of the ultimate rod and preferably from 4 to 7% lby Weight thereof is applied to a carbide core of the cast or preferably the sintered type. A coating of 6% lby weight of the ultimate rod is particularly effective.
A sintered carbide core is a mass of fine refractory carbide particles compressed and sintered in Ithe presence of small amounts of a metallic binder such as cobalt, nickel, or molybdenum to fuse it together. The applied coating metal is of a type which melts approximately from 1800-2870 C. A sintered tungsten carbide core approximately ls inch and specifically 0.140 inch in diameter is accordingly chromium plated to a thickness ranging from y0.002 to 0.015 inch, vmost effectively from 0.005 to 0.010 inch and specifically to `0.008 inch, to provide a protective coating that burns olf evenly with the carbide during deposition, even lby the atomic hydrogen process with its extreme concentration of high temperature heat. In the deposited surface the carbide particles are heterogeneously dispersed with minimum dilution in the parent metal to expose their edges and enhance their cutting action. The coating also protects the sintered carbides from atmospheric corrosion during storage.
The protective coating of this invention may also be formed of high melting temperature refractory metals such as. colombium, vanadium, molybdenum and other metals or alloys thereof with melting points ranging approximately from 18002870 C. The expression high melting temperature refractory metal accordingly refers to each of said metals and also to combinations or alloys thereof. Some of these metals and combinations thereof ice cannot be effectively plated, and they are accordingly sprayed upon thecarbide rods.
Novel features and advantages of the present invention will become apparent to one skilled in the art from a reading of the following description in conjunction with the accompanying drawings wherein similar reference characters refer to similar parts and in which:
FIGS. 1 and 2 are respectively 150x and 100 v photomicrographs of carbide surfaces deposited =by an embodiment of this invention.
FIG. 3 is a perspective View of a rod which is one embodiment of this invention, and
IFIG. 4 is an enlarged cross-sectional View taken through FIG. 3 along the line 4 4.
The previously described chrome plated sintered tungsten carbide electrode of this invention is deposited upon a parent material such as mild steel :by the inert arc or atomic hydrogen process. As shown in FIG. 1, a relatively heterogeneously dispersed array of carbide particles 10 are suspended in a matrix consisting of parent metal 12.
As shown in (FIG. 2, the edges 16 of carbide particles 10 are exposed to facilitate their eficierlt cutting action, and the chromium carbides and other alloys in the deposit help improve the Wear resistance of the overlay.
The rod 18 of this invention therefore provides a very dense carbide surface upon a parent material that may be used for various metal cutting operations despite its remarkably slight `coating 20 of high melting temperature metal upon carbide core 22. A machine Shop may accordingly make its own tools by depositing carbide surfaces upon parent metals, such as steel, with this electrode. Such a surface is extremely hard and wear-resistant and particularly possesses a relatively great red hardness, which is a significant property for cutting tools.
What is claimed is:
1. A carbide surfacing rod comprising a refractory car- Ibide core having a coating ranging approximately from 2-10% lby weight of said rod of a refractory metal compatible with deposition of said car-bide upon a parent metal surface and rnelting at a temperature ranging approximately from 1800-2870 C.
2. A rod as set forth in claim 1 wherein said carbide core comprises a sintered carbide.
3. A rod as set forth in claim 2 wherein said sintered carbide core comprises sintered tungsten carbide.
4. A rod as set forth in claim 1 wherein said coating comprises chromium.
5. A ro'd as set forth in claim 4 wherein said chromium coating ranges in thickness from I0.002 to 0.015 inch.
6. A rod as set forth in claim 4 wherein said coating ranges in thickness from 0.005 to 0.010 inch.
7. A rod as set forth in claim 1 wherein said coating ranges in thickness from 0.002 to 0.015 inch.
8. A rod as set forth in claim 7 wherein said coating ranges in thickness from 10.005 to 0.010 inch.
9. A rod as set forth in claim 1 wherein said coating ranges approximately from 4 to 7% by weight of said rod.
References Cited bythe Examiner UNITED STATES PATENTS 2,700,091 y1/ 19 55 Culbertson 21.9--146 3,023,130 2/ 1962 Wasserman 117--207 X yRICHARD D. NEVIUS, Primary Examiner

Claims (1)

1. A CARBIDE SURFACING ROD COMPRISING A REFRACTORY CARBIDE CORE HAVING A COATING RANGING APPROXIMATELY FROM 2-10% BY WEIGHT OF SAID ROD OF A REFRACTORY METAL COMPATIBLE WITH DEPOSITION OF SAID CARBIDE UPON A PARENT METAL SURFACE AND MELTING AT A TEMPERATURE RANGING APPROXIMATELY FROM 1800-2870*C.
US298716A 1963-07-30 1963-07-30 Carbide welding rod Expired - Lifetime US3252828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US298716A US3252828A (en) 1963-07-30 1963-07-30 Carbide welding rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US298716A US3252828A (en) 1963-07-30 1963-07-30 Carbide welding rod

Publications (1)

Publication Number Publication Date
US3252828A true US3252828A (en) 1966-05-24

Family

ID=23151733

Family Applications (1)

Application Number Title Priority Date Filing Date
US298716A Expired - Lifetime US3252828A (en) 1963-07-30 1963-07-30 Carbide welding rod

Country Status (1)

Country Link
US (1) US3252828A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600981A (en) * 1969-11-13 1971-08-24 Reynolds Metals Co Electrodes for electrical discharge machining and of making such electrodes and associated dies
US4055742A (en) * 1974-05-21 1977-10-25 Union Carbide Corporation Hard facing rod
US4162392A (en) * 1977-07-13 1979-07-24 Union Carbide Corporation Hard facing of metal substrates
US4312894A (en) * 1974-05-21 1982-01-26 Union Carbide Corporation Hard facing of metal substrates
US4650722A (en) * 1980-06-13 1987-03-17 Union Carbide Corporation Hard faced article
US5250355A (en) * 1991-12-17 1993-10-05 Kennametal Inc. Arc hardfacing rod
EP0753375A2 (en) * 1995-07-03 1997-01-15 Camco International Inc. Hardfacing material for rolling cutter drill bits
US5740872A (en) * 1996-07-01 1998-04-21 Camco International Inc. Hardfacing material for rolling cutter drill bits
US20140263193A1 (en) * 2013-03-15 2014-09-18 Lincoln Global, Inc. Consumable and method and system to utilize consumable in a hot-wire system
US10464168B2 (en) 2014-01-24 2019-11-05 Lincoln Global, Inc. Method and system for additive manufacturing using high energy source and hot-wire
US11027362B2 (en) 2017-12-19 2021-06-08 Lincoln Global, Inc. Systems and methods providing location feedback for additive manufacturing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700091A (en) * 1953-10-12 1955-01-18 Union Carbide & Carbon Corp Flux
US3023130A (en) * 1959-08-06 1962-02-27 Eutectic Welding Alloys Hard surfacing material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700091A (en) * 1953-10-12 1955-01-18 Union Carbide & Carbon Corp Flux
US3023130A (en) * 1959-08-06 1962-02-27 Eutectic Welding Alloys Hard surfacing material

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600981A (en) * 1969-11-13 1971-08-24 Reynolds Metals Co Electrodes for electrical discharge machining and of making such electrodes and associated dies
US4055742A (en) * 1974-05-21 1977-10-25 Union Carbide Corporation Hard facing rod
US4312894A (en) * 1974-05-21 1982-01-26 Union Carbide Corporation Hard facing of metal substrates
US4162392A (en) * 1977-07-13 1979-07-24 Union Carbide Corporation Hard facing of metal substrates
US4650722A (en) * 1980-06-13 1987-03-17 Union Carbide Corporation Hard faced article
US5250355A (en) * 1991-12-17 1993-10-05 Kennametal Inc. Arc hardfacing rod
EP0753375A2 (en) * 1995-07-03 1997-01-15 Camco International Inc. Hardfacing material for rolling cutter drill bits
EP0753375A3 (en) * 1995-07-03 1997-05-07 Camco Int Hardfacing material for rolling cutter drill bits
US5740872A (en) * 1996-07-01 1998-04-21 Camco International Inc. Hardfacing material for rolling cutter drill bits
US20140263193A1 (en) * 2013-03-15 2014-09-18 Lincoln Global, Inc. Consumable and method and system to utilize consumable in a hot-wire system
US10464168B2 (en) 2014-01-24 2019-11-05 Lincoln Global, Inc. Method and system for additive manufacturing using high energy source and hot-wire
US11027362B2 (en) 2017-12-19 2021-06-08 Lincoln Global, Inc. Systems and methods providing location feedback for additive manufacturing

Similar Documents

Publication Publication Date Title
US3348929A (en) Protecting carbon materials from oxidation
US3252828A (en) Carbide welding rod
DE1521369C3 (en) Powdery, self-flowing flame spraying compound
US5004886A (en) Method of applying wear-resistant layer and consumable electrode for carrying out the method
US2137471A (en) Composite welding rod
US4143258A (en) Welding microstructure control
US2961312A (en) Cobalt-base alloy suitable for spray hard-facing deposit
US4609401A (en) Powdered material for thermal spraying
US3035934A (en) Application of cobalt-base alloys to metal parts
US3293029A (en) Wear-facing alloy
CN106975861B (en) A kind of hard material of tungsten carbide particle and preparation method thereof containing clad
US3455019A (en) Method for producing carbide containing materials
US4510183A (en) Method for applying wear-resistant coatings on working surfaces of tools and devices
US3392017A (en) Welding consumable products
US3372066A (en) Coated carbide particles
US3049435A (en) Process for applying tungsten carbide particles to a workpiece surface
US3986842A (en) Multi-component metal coating consumable
US4192983A (en) Methods of hard facing
US2855333A (en) Welding electrode
US4810464A (en) Iron-base hard surfacing alloy system
US3523569A (en) Method of producing carbide containing materials
US3340049A (en) Copper base alloy
JPS5942070B2 (en) What is the best way to do this?
US3253950A (en) Flux-coated welding electrode
US3304604A (en) Method for producing carbide containing materials