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WO1999050018A1 - Clad plate and method of making - Google Patents

Clad plate and method of making Download PDF

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Publication number
WO1999050018A1
WO1999050018A1 PCT/US1999/007137 US9907137W WO9950018A1 WO 1999050018 A1 WO1999050018 A1 WO 1999050018A1 US 9907137 W US9907137 W US 9907137W WO 9950018 A1 WO9950018 A1 WO 9950018A1
Authority
WO
WIPO (PCT)
Prior art keywords
clad plate
welding
clad
wire
base plate
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.)
Ceased
Application number
PCT/US1999/007137
Other languages
French (fr)
Inventor
David M. Braden
Grant J. Murphy, Jr.
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.)
Tricon Metals and Services Inc
Original Assignee
Tricon Metals and Services Inc
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 Tricon Metals and Services Inc filed Critical Tricon Metals and Services Inc
Priority to AU34602/99A priority Critical patent/AU3460299A/en
Publication of WO1999050018A1 publication Critical patent/WO1999050018A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • B23K9/042—Built-up welding on planar surfaces
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/287—Supporting devices for electrode holders

Definitions

  • the present invention relates to metal plates overlaid with cladding. More particularly, the present invention relates to an improved wear resistant cladding deposited by continuous bead welding.
  • cladding to the surface of metals is well known in the art.
  • a clad layer is bonded to the surface of a metal plate to produce a composite material having superior wear resistance and durability.
  • One method of applying cladding is through continuous bead welding wherein a continuous line of beads is arc welded from welding wire in adjacent straight lines along the length of the substrate plate.
  • interstices formed between the lines of bead welding are receptive to "channel wear" under highly abrasive conditions. Channel wear occurs when abrasive particles move through the interstices and slowly wear away the cladding. As the channel enlarges, the channel wear increases until the cladding is eventually compromised and the underlying metal plate exposed.
  • a clad plate comprising an improved wear resistant cladding.
  • the clad plate comprises a substrate plate having a plurality of adjacent lines of continuous bead welding deposited thereon via arc welding.
  • the bead welding is deposited in a wave-like fashion to form a sinusoidal or herringbone pattern.
  • the bead welding can be deposited to form a cladding comprising a single layer or a cladding comprising multiple layers.
  • the wave pattern of the clad layer substantially improves wear resistance of the clad plate and reduces the problem of channel wear brought about by exposure to highly abrasive environments because the abrasive materials cannot be carried continuously within the interstices between the bead welding lines as the abrasive materials flow across the clad plate.
  • the clad plate shows greatest wear resistance when used in a manner such that the abrasive materials being handled by the clad plate move across the cladding perpendicular to the direction of bead welding line deposition.
  • FIG. 1 is a top plan view of a clad plate having continuous lines of bead welding deposited on the base plate in a sinusoidal pattern.
  • FIG. 2 is a top plan view of the clad plate having continuous lines of bead welding deposited on the base plate in a herringbone pattern.
  • FIG. 3 is an end view of the clad plate wherein the cladding comprises multiple layers of bead welding.
  • FIG. 4 is an end view of the clad plate wherein the cladding comprises multiple layers of bead welding and the individual bead welding lines are shifted relative to the underlying lines.
  • FIG. 5 is an end view of the welding machine and the support frame with the base plate thereon.
  • FIG. 6 is a side view of the welding machine and the support frame with the base plate thereon.
  • the invention is a clad plate comprising a base plate 11 having a plurality of adjacent lines of continuous bead welding 12 deposited thereon.
  • the bead welding 12 is deposited in a wave-like fashion to form, for example, a sinusoidal pattern as shown in FIG. 1, or a herringbone pattern as shown in FIG. 2.
  • the bead welding can be deposited to form a cladding comprising a single layer, or a cladding comprising multiple layers as shown in FIGS. 3 and 4. When deposited in multiple layers, the bead welding can be deposited directly over the underlying layer (FIG.
  • This wave pattern of the clad layer substantially improves wear resistance of the clad plate and reduces the problem of channel wear brought about by exposure to highly abrasive environments because the abrasive materials cannot be carried continuously within the interstices between the bead welding lines as the abrasive materials flow across the clad plate.
  • the clad plate shows greatest wear resistance when used in a manner such that the abrasive materials being handled by the clad plate move across the cladding perpendicular to the direction of bead line deposition.
  • a base plate 11 preferably comprising a low carbon mild steel, is placed upon a fixed support frame 14 over which the welding heads 16 of a carriage welding machine 17 are suspended.
  • a welding machine suitable for use in making the clad plate of the present invention is supplied by Weldtech International (Edgewood, Kentucky).
  • the size of the base plate 11 is preferably 8 feet x 20 feet and has a thickness of at least 3/16-inch.
  • a base plate having any thickness less than 3/16 inch runs a risk of being perforated during the arc welding procedure.
  • the welding machine 17 preferably has at least 4 welding heads 16 fed by wire spools 15 through wire feeders 18.
  • the welding wire 19 used is preferably 1/8 inch diameter and preferably includes a flux material therein to assist in deposition and bonding of the welding wire 19 to the base plate 11. Thus, no welding gas is required.
  • a suitable welding wire is supplied by Tricon Metals & Services, Inc. (Birmingham, Alabama) under the name "Tricon Super-C". As the wire 19 is fed through the welding tips 21, it comes in contact with the base plate 11 and is fused thereto via arc welding.
  • the welding machine 17 is movable in a longitudinal direction above the support frame 14 and the welding heads 16 are movable in a transverse direction relative to the support frame 14. Oscillation of the welding heads 16 is induced by a laterally oscillating plate 22 to which the welding heads 16 are mounted.
  • the oscillating plate 22 is driven by a chain 23 attached thereto around movable sprockets 24, one of which is driven by a motor 26 controlled by an encoder (not shown) to regulate the amplitude of the oscillations.
  • the rate of feed of the wire 19 through the welding heads 16, the rate of travel of the welding machine 17 along the support frame 14, and the oscillation of the welding heads 16 are all controlled by a central processing unit.
  • An exhaust system (not shown) is preferably mounted above the welding heads 16 to remove smoke from the area.
  • the welding tips 21 deposit a continuous stream of bead welding in at least 4 lines onto the base plate 11.
  • the welding heads 16 oscillate and travel in a wave fashion so that the bead lines form a zigzag or sinusoidal pattern.
  • the welding heads 16 are incrementally shifted and another set of bead lines are deposited immediately adjacent the previous bead lines as the welding machine 17 returns to the opposite end of the plate 11. This process continues until the desired surface area of the base plate 11 has been covered and is repeated if a multi-layered cladding is desired.
  • the final clad layer has a herringbone or sinusoidal pattern, shown in FIGS. 1 and 2.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

A clad plate comprising an improved wear resistant cladding. The clad plate comprises a substrate plate (11) having a plurality of adjacent lines of continuous bead welding (12) deposited thereon via arc welding. The bead welding is deposited in a wave-like fashion to form a sinusoidal or herringbone pattern. The bead welding can be deposited to form a cladding comprising a single layer or a cladding comprising multiple layers. The wave pattern of the clad layer substantially improves wear resistance of the clad plate and reduces the problem of channel wear brought about by exposure to highly abrasive environments because the abrasive materials cannot be carried continuously within the interstices between the bead welding lines as the abrasive materials flow across the clad plate. The clad plate shows greatest wear resistance when used in a manner such that the abrasive materials being handled by the clad plate move across the cladding perpendicular to the direction of bead welding line deposition.

Description

CLAD PLATE AND METHOD OF MAKING Technical Field
The present invention relates to metal plates overlaid with cladding. More particularly, the present invention relates to an improved wear resistant cladding deposited by continuous bead welding.
Background Art
Applying cladding to the surface of metals is well known in the art. Typically, a clad layer is bonded to the surface of a metal plate to produce a composite material having superior wear resistance and durability. One method of applying cladding is through continuous bead welding wherein a continuous line of beads is arc welded from welding wire in adjacent straight lines along the length of the substrate plate. However, interstices formed between the lines of bead welding are receptive to "channel wear" under highly abrasive conditions. Channel wear occurs when abrasive particles move through the interstices and slowly wear away the cladding. As the channel enlarges, the channel wear increases until the cladding is eventually compromised and the underlying metal plate exposed. Attempts have been made to remedy this problem by minimizing the gap sizes of the interstices; however, although delayed, channel wear still eventually occurs. As a result, there is still a need for cladding applied by continuous bead welding which overcomes the problem of channel wear.
Disclosure of Invention
It is the object of the present invention to provide a clad plate having superior wear resistance compared to those presently available.
It is another object of the present invention to provide an improved wear resistant cladding applied by continuous bead welding which reduces the problem of channel wear.
It is another object of the present invention to provide a process for depositing the improved wear resistant cladding which is conveniently adaptable to presently used arc welding systems.
These and other objects of the present invention are accomplished with a clad plate comprising an improved wear resistant cladding. The clad plate comprises a substrate plate having a plurality of adjacent lines of continuous bead welding deposited thereon via arc welding. The bead welding is deposited in a wave-like fashion to form a sinusoidal or herringbone pattern. The bead welding can be deposited to form a cladding comprising a single layer or a cladding comprising multiple layers. The wave pattern of the clad layer substantially improves wear resistance of the clad plate and reduces the problem of channel wear brought about by exposure to highly abrasive environments because the abrasive materials cannot be carried continuously within the interstices between the bead welding lines as the abrasive materials flow across the clad plate. The clad plate shows greatest wear resistance when used in a manner such that the abrasive materials being handled by the clad plate move across the cladding perpendicular to the direction of bead welding line deposition.
These and other objects and advantages of the invention will become apparent from the following detailed description of the preferred embodiment of the invention.
Brief Description of Drawings
A clad plate embodying features of the invention is described in the accompanying drawings which form a portion of this disclosure and wherein:
FIG. 1 is a top plan view of a clad plate having continuous lines of bead welding deposited on the base plate in a sinusoidal pattern.
FIG. 2 is a top plan view of the clad plate having continuous lines of bead welding deposited on the base plate in a herringbone pattern.
FIG. 3 is an end view of the clad plate wherein the cladding comprises multiple layers of bead welding.
FIG. 4 is an end view of the clad plate wherein the cladding comprises multiple layers of bead welding and the individual bead welding lines are shifted relative to the underlying lines.
FIG. 5 is an end view of the welding machine and the support frame with the base plate thereon.
FIG. 6 is a side view of the welding machine and the support frame with the base plate thereon.
Modes for Carrying out the Invention
A more complete understanding of the invention may be obtained by reference to the accompanying drawings wherein the invention, according to the preferred embodiment, is a clad plate comprising a base plate 11 having a plurality of adjacent lines of continuous bead welding 12 deposited thereon. The bead welding 12 is deposited in a wave-like fashion to form, for example, a sinusoidal pattern as shown in FIG. 1, or a herringbone pattern as shown in FIG. 2. The bead welding can be deposited to form a cladding comprising a single layer, or a cladding comprising multiple layers as shown in FIGS. 3 and 4. When deposited in multiple layers, the bead welding can be deposited directly over the underlying layer (FIG. 3) or offset to overlap the interstices 13 of the underlying layer (FIG. 4) to afford greater protection thereto. This wave pattern of the clad layer substantially improves wear resistance of the clad plate and reduces the problem of channel wear brought about by exposure to highly abrasive environments because the abrasive materials cannot be carried continuously within the interstices between the bead welding lines as the abrasive materials flow across the clad plate. The clad plate shows greatest wear resistance when used in a manner such that the abrasive materials being handled by the clad plate move across the cladding perpendicular to the direction of bead line deposition.
To make the clad plate, a base plate 11, preferably comprising a low carbon mild steel, is placed upon a fixed support frame 14 over which the welding heads 16 of a carriage welding machine 17 are suspended. A welding machine suitable for use in making the clad plate of the present invention is supplied by Weldtech International (Edgewood, Kentucky). The size of the base plate 11 is preferably 8 feet x 20 feet and has a thickness of at least 3/16-inch. A base plate having any thickness less than 3/16 inch runs a risk of being perforated during the arc welding procedure. The welding machine 17 preferably has at least 4 welding heads 16 fed by wire spools 15 through wire feeders 18. The welding wire 19 used is preferably 1/8 inch diameter and preferably includes a flux material therein to assist in deposition and bonding of the welding wire 19 to the base plate 11. Thus, no welding gas is required. A suitable welding wire is supplied by Tricon Metals & Services, Inc. (Birmingham, Alabama) under the name "Tricon Super-C". As the wire 19 is fed through the welding tips 21, it comes in contact with the base plate 11 and is fused thereto via arc welding.
The welding machine 17 is movable in a longitudinal direction above the support frame 14 and the welding heads 16 are movable in a transverse direction relative to the support frame 14. Oscillation of the welding heads 16 is induced by a laterally oscillating plate 22 to which the welding heads 16 are mounted. The oscillating plate 22 is driven by a chain 23 attached thereto around movable sprockets 24, one of which is driven by a motor 26 controlled by an encoder (not shown) to regulate the amplitude of the oscillations. The rate of feed of the wire 19 through the welding heads 16, the rate of travel of the welding machine 17 along the support frame 14, and the oscillation of the welding heads 16 are all controlled by a central processing unit. An exhaust system (not shown) is preferably mounted above the welding heads 16 to remove smoke from the area. Thus, as the welding machine 17 advances longitudinally above the base plate 11, the welding tips 21 deposit a continuous stream of bead welding in at least 4 lines onto the base plate 11. During the deposition process, the welding heads 16 oscillate and travel in a wave fashion so that the bead lines form a zigzag or sinusoidal pattern. When the welding machine 17 reaches the end of the base plate 11, the welding heads 16 are incrementally shifted and another set of bead lines are deposited immediately adjacent the previous bead lines as the welding machine 17 returns to the opposite end of the plate 11. This process continues until the desired surface area of the base plate 11 has been covered and is repeated if a multi-layered cladding is desired. The final clad layer has a herringbone or sinusoidal pattern, shown in FIGS. 1 and 2.
It is to be understood that the form of the invention shown is a preferred embodiment thereof and that various changes and modifications may be made therein without departing from the spirit of the invention or scope as defined in the following claims.

Claims

Claims
1. An improved clad plate, characterized by: a. a metal base plate (11); and b. a clad layer comprising a plurality of adjacent lines of wire (12) welded to a surface of said base plate to form a repeating wave pattern thereon, said lines of wire being deposited on said base plate by continuous bead welding.
2. A clad plate according to claim 1, wherein said base plate comprises a low carbon steel.
3. A clad plate according to claim 1, wherein said base plate is at least 3/16 inch thick.
4. A clad plate according to claim 1, wherein said wave pattern is sinusoidal.
5. A clad plate according to claim 1, wherein said wave pattern is zigzagged.
6. A clad plate according to claim 1, wherein said wire includes a flux material therein.
7. A clad plate according to claim 1, wherein said clad layer comprises multiple layers of said plurality of adjacent lines of said welded wire.
8. A clad plate according to claim 7, wherein each layer of said multiple layers is offset from an adjacent layer such that interstices between said plurality of adjacent lines of each layer do not align with interstices between said plurality of adjacent lines of said adjacent layer.
9. An improved clad plate, characterized by: a. a metal base plate (11); and b. a plurality of adjacent lines of wire (12) affixed to a surface of said base plate, wherein said plurality of adjacent lines forms a repeating wave pattern thereon.
10. A clad plate according to claim 9, wherein said lines of wire are deposited on said base plate by continuous bead welding.
11. A clad plate according to claim 9, wherein said wave pattern is sinusoidal.
12. A clad plate according to claim 9, wherein said wave pattern is herringbone.
13. A method of forming a clad plate, characterized by the step of welding a plurality of adjacent lines of wire (12) to a surface of a base plate (11) to form a repeating wave pattern thereon.
14. A method according to claim 13, wherein said adjacent lines of wire are welded to said surface by continuous bead welding.
15. A method according to claim 13, wherein said adjacent lines of wire are welded to said surface by welding means that oscillate in a transverse direction as said welding means travel in a longitudinal direction along said surface to form said repeating wave pattern.
16. A method according to claim 13, wherein said wave pattern is sinusoidal.
17. A method according to claim 13, wherein said wave pattern is herringbone.
PCT/US1999/007137 1998-04-01 1999-03-31 Clad plate and method of making Ceased WO1999050018A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34602/99A AU3460299A (en) 1998-04-01 1999-03-31 Clad plate and method of making

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5346898A 1998-04-01 1998-04-01
US09/053,468 1998-04-01

Publications (1)

Publication Number Publication Date
WO1999050018A1 true WO1999050018A1 (en) 1999-10-07

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1486284A1 (en) * 2003-06-13 2004-12-15 Baumgarte Boiler Systems & Services GmbH. Method and appartus for clad welding
WO2011095868A1 (en) * 2010-02-04 2011-08-11 Microbonds Inc. Metal graphic and method to produce a metal graphic
WO2012114242A1 (en) 2011-02-22 2012-08-30 Foster Wheeler North America Corp. Weld overlay structure and a method of providing a weld overlay structure
CN106541218A (en) * 2016-10-18 2017-03-29 山东能源重型装备制造集团有限责任公司 A method for improving the wear resistance of metal surfaces
EP4488046A1 (en) * 2023-07-03 2025-01-08 Berkenhoff GmbH Wear plate device and method of manufacture

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185814A (en) * 1961-12-30 1965-05-25 Siemens Ag Method and apparatus for overlay welding
DE2135149A1 (en) * 1971-07-14 1973-02-01 Demag Ag Hard facing welding device - with several electrodes
US4474861A (en) * 1983-03-09 1984-10-02 Smith International, Inc. Composite bearing structure of alternating hard and soft metal, and process for making the same
JPS61212475A (en) * 1985-03-19 1986-09-20 Kobe Steel Ltd Hardening buildup method for raw material repulsive face in vertical furnace
US4733446A (en) * 1982-06-24 1988-03-29 Kuroki Kogyosho Co., Ltd. Roll
DD270023A1 (en) * 1988-03-17 1989-07-19 Dresden Baumechanisierung WELDING PATTERN FOR HARD BEAM WELDING OF WEAR SHEETS
US5312056A (en) * 1992-03-30 1994-05-17 Krupp Polysius Ag Roll mill

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185814A (en) * 1961-12-30 1965-05-25 Siemens Ag Method and apparatus for overlay welding
DE2135149A1 (en) * 1971-07-14 1973-02-01 Demag Ag Hard facing welding device - with several electrodes
US4733446A (en) * 1982-06-24 1988-03-29 Kuroki Kogyosho Co., Ltd. Roll
US4474861A (en) * 1983-03-09 1984-10-02 Smith International, Inc. Composite bearing structure of alternating hard and soft metal, and process for making the same
JPS61212475A (en) * 1985-03-19 1986-09-20 Kobe Steel Ltd Hardening buildup method for raw material repulsive face in vertical furnace
DD270023A1 (en) * 1988-03-17 1989-07-19 Dresden Baumechanisierung WELDING PATTERN FOR HARD BEAM WELDING OF WEAR SHEETS
US5312056A (en) * 1992-03-30 1994-05-17 Krupp Polysius Ag Roll mill

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1486284A1 (en) * 2003-06-13 2004-12-15 Baumgarte Boiler Systems & Services GmbH. Method and appartus for clad welding
DE10326694B4 (en) * 2003-06-13 2006-06-01 Baumgarte Boiler Service Gmbh Method and apparatus for welding cladding
WO2011095868A1 (en) * 2010-02-04 2011-08-11 Microbonds Inc. Metal graphic and method to produce a metal graphic
CN102821974A (en) * 2010-02-04 2012-12-12 麦克罗邦兹股份有限公司 Metal graphic and method to produce a metal graphic
CN102821974B (en) * 2010-02-04 2016-08-10 麦克罗邦兹股份有限公司 Metallic pattern and the method forming this metallic pattern
US10471679B2 (en) 2010-02-04 2019-11-12 Wire Art Switzerland Sa Metal graphic and method to produce a metal graphic
WO2012114242A1 (en) 2011-02-22 2012-08-30 Foster Wheeler North America Corp. Weld overlay structure and a method of providing a weld overlay structure
JP2014505598A (en) * 2011-02-22 2014-03-06 フォスター ホイーラ ノース アメリカ コーポレイション Overlay welded structure and method for forming overlay welded structure
CN106541218A (en) * 2016-10-18 2017-03-29 山东能源重型装备制造集团有限责任公司 A method for improving the wear resistance of metal surfaces
EP4488046A1 (en) * 2023-07-03 2025-01-08 Berkenhoff GmbH Wear plate device and method of manufacture

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Publication number Publication date
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