AU603281B2 - Creation of Inventions and Patents with Artificial Intelligence

AU603281B2 – Hardening wear plates and the like
– Google Patents

AU603281B2 – Hardening wear plates and the like
– Google Patents
Hardening wear plates and the like

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Publication number
AU603281B2

AU603281B2
AU29799/89A
AU2979989A
AU603281B2
AU 603281 B2
AU603281 B2
AU 603281B2
AU 29799/89 A
AU29799/89 A
AU 29799/89A
AU 2979989 A
AU2979989 A
AU 2979989A
AU 603281 B2
AU603281 B2
AU 603281B2
Authority
AU
Australia
Prior art keywords
plate
wear
carbon
mild steel
penetration
Prior art date
1988-02-11
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
AU29799/89A
Other versions

AU2979989A
(en

Inventor
Santiago Blas
Phillip John Kidcaff
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.)

Individual

Original Assignee
Individual
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.)
1988-02-11
Filing date
1989-02-10
Publication date
1990-11-08

1989-02-10
Application filed by Individual
filed
Critical
Individual

1989-02-10
Priority to AU29799/89A
priority
Critical
patent/AU603281B2/en

1989-08-17
Publication of AU2979989A
publication
Critical
patent/AU2979989A/en

1990-11-08
Application granted
granted
Critical

1990-11-08
Publication of AU603281B2
publication
Critical
patent/AU603281B2/en

2009-02-10
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

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Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR

B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS

B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified

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

B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups

B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding

B23K31/025—Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces, e.g. wear-resisting zones to tableware

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

B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C

B23K35/3053—Fe as the principal constituent

B23K35/306—Fe as the principal constituent with C as next major constituent, e.g. cast iron

C—CHEMISTRY; METALLURGY

C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL

C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL

C23C26/00—Coating not provided for in groups C23C2/00 – C23C24/00

C23C26/02—Coating not provided for in groups C23C2/00 – C23C24/00 applying molten material to the substrate

C—CHEMISTRY; METALLURGY

C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes

C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied

C23C8/64—Carburising

C23C8/66—Carburising of ferrous surfaces

Description

i 1 l-uruwsll~–rPrr~4r-7 Thi document contains the amnedments made under Ioi;:.tn 49 and is correct for printing.[ COMMONWEALTH OF AUSTRALIA Patents Act 1952 t k Name of Applicants Address of Applicants Actual Inventors Address for Service PHILIP JOHN SANTIAGO BLAS KIDCAFF and both of 60 Archibald Street, West Macke Queensland, 4740, Australia PHILIP JOHN KIDCAFF SANTIAGO BLAS and GRANT ADAMS COMPANY, Patent Trade Mark Attorneys, 333 Adelaide Street, BRISBANE. QUEENSLAND. 4000
AUSTRALIA.
1 Lj COMPLETE SPECIFICATION FOR THE INVENTION ENTITLED: “HARDENING WEAR PLATES AND THE LIKE” The following statement is a full description of the invention including the best method of performing it known to the applicant.
4 THIS INVENTION relates to hardening wear plates and the like.
Certain areas of earthmoving equipment, such as the sole and heel plates of earthmoving and dragline buckets, and the crutch areas of the large chain links used in such equipment, are subject to very considerable abrasion and consequent wear, which necessitates costly and time-consuming maintenance, repair and replacement.
To overcome or materially reduce this problem it has been proposed to weld wear blocks, wear plates, shrouds, blocks for bushes and the like to the areas which have been, or will be, subjected to abrasive wear, and examples of these are described in the specifications of our Australian Patents Nos. 540850 and 577726. In such a wear block or the like, an open or hollow surround of mild steel is welded to a base plate and filled with a deposition of hard-face welding material, the mild steel surround and/or base then being welded to the area subject to undue abrasive wear.
Although wear blocks, plates, shrouds and the like of this type have been found to be in general very effective in achieving the object for which they have been devised, instances have occurred of loss of the wear-resistant integers due to restricted mild steel areas available for welding to the surfaces to be protected, and the height of the integers above the surfaces.
The present invention has been devised with the general object of overcoming the said present disadvantage by providing wear plates, blocks, shrouds and the like which, though highly resistant to abrasion, and not of undue height, still have side edges of sufficient depth to enable good welding to a surface to be protected.
Broadly, the invention resides in a method of making a wear plate for welding to a surface as a wear 2 block, plate, shroud, bush or the like including the step of working a surface of a mild steel plate with a carbon electrode to cause fusion of the surface of the plate and the penetration into the plate from the said surface of carbon from the electrode. Other features of the invention will become apparent from the following description.
According to one embodiment of the invention, given by way of illustrative example only, a shroud for the crutch area of a heavy chain link is substantially of the configuration of that described and illustrated in the specification of our Patent No. 577726; that is to say, it is of mild steel plate and, in plan view, substantially of crescent or arcuate shape with a number of substantially radial re-entrant recesses from its concave edge.
The flat outer face of the shroud plate is hardened by a process of carbon electrode working so as to result in a fusing of the mild steel at and near to the surface and a penetration into the fused mild steel of carbon from the electrode or electrodes. Experiments have shown that in a mild steel plate with a thickness of 8mm. the carbon dilution or penetration may be up to 2mm. in depth. The depth in any particular case however, will be dependent on a number of factors, including the thickness of the mild steel base and its capability to absorb wear, the size of the carbon rod and the amperage of the electrical current used.
The process may be carried out by the use of a single electrode or multiple electrodes working from a conventional robot- or manually-operated power source and applied to one face of a plate resulting in fusing and penetration of the plate surface The penetration of the carbon into the mild steel face of the base results in a very considerable hardening of the wear-resistant surface without any 3 significant increase in depth of the base plate which therefore, when welded about its edges to the area to be protected, will not be of any excessive height and therefore will be far less liable to breaking away from the article to which it is applied.
Wear plates, shrouds, blocks and the like made according to the present invention will be found to be simple and economical to manufacture, due largely to the elimination of the necessity to use substantial depositions of hardface weld deposition. Nevertheless, the wear resistant qualities of the articles will be found to be very high.
It will, of course, be understood that the 4444 o, method described, and the articles made according to the 15 method, may be subject to many modifications which will 4 be readily understood by persons skilled in the art without departing from the scope and ambit of the 4 44 invention hereinafter claimed.
4 44 0 4 4 4

Claims (3)

1. A method of making a wear plate for welding to a surface as a wear block, plate, shroud, bush or the like including the steps of working a surface of a mild steel plate with a carbon electrode to cause fusion of the surface of the plate and the penetration into the plate from the said surface of carbon from the electrode.

2. A method of making a wear plate according to Claim 1 wherein the fusion and carbon penetration into the plate is to a depth of aWo-utone-quarter of the thickness of the plate.

3. A method of making a wear plate substantially as herein described. DATED this sixth day of February 1989 PHILIP JOHN KIDCAFF and SANTIAGO BLAS, By their Patent Attorneys GRANT ADAMS COMPANY. i

AU29799/89A
1988-02-11
1989-02-10
Hardening wear plates and the like

Ceased

AU603281B2
(en)

Priority Applications (1)

Application Number
Priority Date
Filing Date
Title

AU29799/89A

AU603281B2
(en)

1988-02-11
1989-02-10
Hardening wear plates and the like

Applications Claiming Priority (3)

Application Number
Priority Date
Filing Date
Title

AUPI6704

1988-02-11

AUPI670488

1988-02-11

AU29799/89A

AU603281B2
(en)

1988-02-11
1989-02-10
Hardening wear plates and the like

Publications (2)

Publication Number
Publication Date

AU2979989A

AU2979989A
(en)

1989-08-17

AU603281B2
true

AU603281B2
(en)

1990-11-08

Family
ID=25621140
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU29799/89A
Ceased

AU603281B2
(en)

1988-02-11
1989-02-10
Hardening wear plates and the like

Country Status (1)

Country
Link

AU
(1)

AU603281B2
(en)

Citations (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AU540850B2
(en)

1983-03-14
1984-12-06

Dural International Pty. Ltd.

Wear plates for earthmoving equipment

AU577726B1
(en)

1987-06-24
1988-09-29

Santiago Blas

Wear resistant shroud for chain link

1989

1989-02-10
AU
AU29799/89A
patent/AU603281B2/en
not_active
Ceased

Patent Citations (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AU540850B2
(en)

1983-03-14
1984-12-06
Dural International Pty. Ltd.
Wear plates for earthmoving equipment

AU577726B1
(en)

1987-06-24
1988-09-29
Santiago Blas
Wear resistant shroud for chain link

Also Published As

Publication number
Publication date

AU2979989A
(en)

1989-08-17

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