CA1112597A - Abrasive resistant members - Google Patents
Abrasive resistant membersInfo
- Publication number
- CA1112597A CA1112597A CA330,297A CA330297A CA1112597A CA 1112597 A CA1112597 A CA 1112597A CA 330297 A CA330297 A CA 330297A CA 1112597 A CA1112597 A CA 1112597A
- Authority
- CA
- Canada
- Prior art keywords
- cast iron
- unit
- white cast
- rubber
- abrasion resistant
- 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
Links
- 229910001037 White iron Inorganic materials 0.000 claims abstract description 32
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- 239000005060 rubber Substances 0.000 claims abstract description 16
- 238000005299 abrasion Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 239000004636 vulcanized rubber Substances 0.000 claims 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
ABSTRACT
An abrasive resistant unit comprising a plurality of white cast iron plates embedded in and vulcanized to rubber which in turn is vulcanized to a mild steel backing plate.
An abrasive resistant unit comprising a plurality of white cast iron plates embedded in and vulcanized to rubber which in turn is vulcanized to a mild steel backing plate.
Description
1.
-' This invention relates to improvements in and . relating to abrasive resistant members, more particularly members in which abrasive materials ' pass over along a surface.
,- 5 BACKGROUND OF THE INVENTION
~'- While the invention can be applicable to various abrasive situations, one form will be described i,n relation to its use on reci,procatory feeder decks, ,~ chute liners and -the like. In the design of reciprocatory feeders, and the deckings and liners :~ therefore, the decking and liners must be highly , resistant to the abrasive material being fed, but on the other hand the units must be as light as possible ~ .
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-' This invention relates to improvements in and . relating to abrasive resistant members, more particularly members in which abrasive materials ' pass over along a surface.
,- 5 BACKGROUND OF THE INVENTION
~'- While the invention can be applicable to various abrasive situations, one form will be described i,n relation to its use on reci,procatory feeder decks, ,~ chute liners and -the like. In the design of reciprocatory feeders, and the deckings and liners :~ therefore, the decking and liners must be highly , resistant to the abrasive material being fed, but on the other hand the units must be as light as possible ~ .
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to minimise the inertia, and thus to be able to design the feeders to operate in a satisfactory manner.
Thus these reciprocatory feeders must have S linings or surfaces thereon which are highly resistant ~ to abrasion, and be light in weight. It is well ;;; known that white cast lron is highly resistant to ~ abrasion, but it has the disadvantages that it is : very brittle and fragile and problems arise in mounting such plates of white iron in situations ~ such as this.
: For example if the plates are bolted in position, then due to the abrasive nature of the use, the bolts could quickly wear away and the plates would become loose and either be completely removed or readily fracture.
Other forms of abrasive resistant materials are known, and these include highly resistant abrasive ~;~ welding, which can be welded on to a plate, but this -~ 20 thickness is limited to approximately 5/16 of an inch ~` on for example a ~ inch plate.
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~ However such materials are very expensive to ;~ produce, and also due to the limited thickness which can be applied by this welding technique, are not :; 25 entircly satisfac-tory.
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~ Thus it is realised that white cast iron plates ;;i~ could be an ideal form of abrasion resistant lining ~ and the like, if some means could be devised for .:, . -' .~ .
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to minimise the inertia, and thus to be able to design the feeders to operate in a satisfactory manner.
Thus these reciprocatory feeders must have S linings or surfaces thereon which are highly resistant ~ to abrasion, and be light in weight. It is well ;;; known that white cast lron is highly resistant to ~ abrasion, but it has the disadvantages that it is : very brittle and fragile and problems arise in mounting such plates of white iron in situations ~ such as this.
: For example if the plates are bolted in position, then due to the abrasive nature of the use, the bolts could quickly wear away and the plates would become loose and either be completely removed or readily fracture.
Other forms of abrasive resistant materials are known, and these include highly resistant abrasive ~;~ welding, which can be welded on to a plate, but this -~ 20 thickness is limited to approximately 5/16 of an inch ~` on for example a ~ inch plate.
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~ However such materials are very expensive to ;~ produce, and also due to the limited thickness which can be applied by this welding technique, are not :; 25 entircly satisfac-tory.
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~ Thus it is realised that white cast iron plates ;;i~ could be an ideal form of abrasion resistant lining ~ and the like, if some means could be devised for .:, . -' .~ .
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3 ~ 7 mounting these plates and securing them in position, without producing an unduly heavy structure. It is to be realized that it is virtually impossible to weld white cast iron due to the ready tendency of such cast iron to crack and fracture due to the internal stresses produced during and after the welding operation.
BRIEF DESCRIPTION OF THE_INVENTION
` Thus it is an object of this invention to provide anabrasion resistant liner or plate or the like, such liner or plate having high abrasive resistance and yet being relatively light in weight.
- According to the invention there is therefore provided an abrasion resistant unit, said unit being characterized by at least one abrasion resistant white cast iron plate; a non-abrasion resistant backing plate, mechanical means on the backing plate to attach the unit to a supporting structure, said cast iron plate having an exposed wear-resistant upper surface and one lower face surface, said white cast iron plate being vulcanized to a mass of rubber that is vulcanized to said backing plate, all of such lower face surface of said iron plate being bonded by vulcanization to said mass of rubber, which rubber assists in acoustically isolating said white cast iron plate from said backing plate while supporting said white cast iron plate in the event of breakage.
BRIEF DESCRIPTION OF THE DRAWINGS
- In the drawings FIG. 1 shows one form of the invention.
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DESCRIPTION OF THE PREFERRED EMBODIMENT
As shown in the single figure of the drawings, the white cast iron plates 1 can be bonded to rubber 2 by vulcaniæation, with the upper surface 3 of the plates being the upper wearing surface of the abrasion resistant unit the white cast iron . plates being bonded across their lower surface 4 and along their vertical sides S to the mass ~f r~bber 2.
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BRIEF DESCRIPTION OF THE_INVENTION
` Thus it is an object of this invention to provide anabrasion resistant liner or plate or the like, such liner or plate having high abrasive resistance and yet being relatively light in weight.
- According to the invention there is therefore provided an abrasion resistant unit, said unit being characterized by at least one abrasion resistant white cast iron plate; a non-abrasion resistant backing plate, mechanical means on the backing plate to attach the unit to a supporting structure, said cast iron plate having an exposed wear-resistant upper surface and one lower face surface, said white cast iron plate being vulcanized to a mass of rubber that is vulcanized to said backing plate, all of such lower face surface of said iron plate being bonded by vulcanization to said mass of rubber, which rubber assists in acoustically isolating said white cast iron plate from said backing plate while supporting said white cast iron plate in the event of breakage.
BRIEF DESCRIPTION OF THE DRAWINGS
- In the drawings FIG. 1 shows one form of the invention.
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DESCRIPTION OF THE PREFERRED EMBODIMENT
As shown in the single figure of the drawings, the white cast iron plates 1 can be bonded to rubber 2 by vulcaniæation, with the upper surface 3 of the plates being the upper wearing surface of the abrasion resistant unit the white cast iron . plates being bonded across their lower surface 4 and along their vertical sides S to the mass ~f r~bber 2.
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In this way the white cast iron plates 1 arefirmly supported in position with the rubber 2 and white cast iron plates 1 being mounted on a backing plate 6. This backing plate can be a relatively thin material such as mild steel as long as it is sufficient to mount the assembly in desired position.
This mounting can be either by welding, rivetting, bolting or other provisions such as studs 7 or the like welded to the backing plate.
., The unit is produced by positioning the white cast iron plates and the backing plate in position and the unit formed by vulcanizing the rubber to bond the white cast iron plates to the backing plate to form the unit.
In this way the size and thickness of the white cast iron plates 1 can be readily chosen as desired, and also the dimensions of the plates themselves and the spacing therebetween can be chosen as desired.
In this way it is possible to produce large plates, and these can easily then be cut by a normal metal band saw, by cutting in between the plates of white iron. For example the white cast iron plates can be 8 inches square and ~ inch thick. The rubber could be 3/8 inches thick and are bonded to a 3/16 inch backing plate.
The unit thus produced is of relative light weight, there is economy of production of the units, and the units produce a high life resistance to abrasion.
ilence it is realized that the invention provides ,, ''-'''-'~ . ' ':
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In this way the white cast iron plates 1 arefirmly supported in position with the rubber 2 and white cast iron plates 1 being mounted on a backing plate 6. This backing plate can be a relatively thin material such as mild steel as long as it is sufficient to mount the assembly in desired position.
This mounting can be either by welding, rivetting, bolting or other provisions such as studs 7 or the like welded to the backing plate.
., The unit is produced by positioning the white cast iron plates and the backing plate in position and the unit formed by vulcanizing the rubber to bond the white cast iron plates to the backing plate to form the unit.
In this way the size and thickness of the white cast iron plates 1 can be readily chosen as desired, and also the dimensions of the plates themselves and the spacing therebetween can be chosen as desired.
In this way it is possible to produce large plates, and these can easily then be cut by a normal metal band saw, by cutting in between the plates of white iron. For example the white cast iron plates can be 8 inches square and ~ inch thick. The rubber could be 3/8 inches thick and are bonded to a 3/16 inch backing plate.
The unit thus produced is of relative light weight, there is economy of production of the units, and the units produce a high life resistance to abrasion.
ilence it is realized that the invention provides ,, ''-'''-'~ . ' ':
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a very versatile plate, in that the units can be made of any desired dimension, the white cast iron plates can be of any suitable dimension and thickness, the rubber thickness which supports the plates can be varied as desired, and also the backing plate ; can be formed to suit the desired situation. While the white cast iron plates can be of any suitable dimension, in practice they are limited to about 8 inches square, for above thi.s dimension with a J 10 ~ inch thick plate, it is difficult to cast a plate with a relatively flat upper surface.
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Also while particular. reference has been made : to white cast iron plates, it is to be realized that the abrasive resistant plates could be of other metals, such as manganese steel. Also the backing . plate could be of a metal other than mild steel, : such as iron~
,, ~ While rubber is a preferxed material, this can : be either natural or synthetic rubber, or a combination thereof, or any other suitable elastomeric material, and bonded to the plates by vulcanization of by use of a suitable adhesive.
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While various forms of the invention have been described, it is realized that the invention is not to be limited thereto but can include various modi-fications falling within tho spirit and scope of the inventioll .
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a very versatile plate, in that the units can be made of any desired dimension, the white cast iron plates can be of any suitable dimension and thickness, the rubber thickness which supports the plates can be varied as desired, and also the backing plate ; can be formed to suit the desired situation. While the white cast iron plates can be of any suitable dimension, in practice they are limited to about 8 inches square, for above thi.s dimension with a J 10 ~ inch thick plate, it is difficult to cast a plate with a relatively flat upper surface.
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Also while particular. reference has been made : to white cast iron plates, it is to be realized that the abrasive resistant plates could be of other metals, such as manganese steel. Also the backing . plate could be of a metal other than mild steel, : such as iron~
,, ~ While rubber is a preferxed material, this can : be either natural or synthetic rubber, or a combination thereof, or any other suitable elastomeric material, and bonded to the plates by vulcanization of by use of a suitable adhesive.
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While various forms of the invention have been described, it is realized that the invention is not to be limited thereto but can include various modi-fications falling within tho spirit and scope of the inventioll .
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Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An abrasion resistant unit, said unit being characterized by at least one abrasion resistant white cast iron plate, a non-abrasion resistant backing plate, mechanical means on the backing plate to attach the unit to a supporting structure, said cast iron plate having an exposed wear-resistant upper surface and one lower face surface, said white cast iron plate being vulcanized to a mass of rubber that is vulcanized to said backing plate, all of such lower face surface of said iron plate being bonded by vulcanization to said mass of rubber, which rubber assists in acoustically isolating said white cast iron plate from said backing plate while supporting said white cast iron plate in the event of breakage.
2. An abrasion resistant unit as defined in Claim 1, character-ized in that said abrasion resistant unit comprises a plurality of white cast iron plates spaced from each other by vulcanized rubber, said unit being produced by being cut from a larger unit by sawing between adjacent white cast iron plates, said cast iron plates all having exposed wear-resistant upper surfaces.
3. An abrasion resistant unit as defined in Claim 2 character-ized in that said white cast iron plates have vertical sides, said abrasion resistant unit initially comprises a plurality of white cast iron plates spaced from each other by vulcanized rubber and forming a larger initial unit, said first named unit being produced by being cut from (a) said larger unit by cuts made between adjacent white cast iron plates, said mass of rubber being simultaneously vulcanized to said white cast iron plates and to said backing plate, each said white cast iron plates also being bonded to said mass of rubber on said vertical sides.
4. An abrasion resistant unit as in Claim 3, characterized by said rubber being present between adjacent vertical sides of said white cast iron plates in sufficient width to remain bonded to said sides after being cut from said larger initial unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU481678 | 1978-06-21 | ||
| AUPD4816/78 | 1978-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1112597A true CA1112597A (en) | 1981-11-17 |
Family
ID=3695272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA330,297A Expired CA1112597A (en) | 1978-06-21 | 1979-06-21 | Abrasive resistant members |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1112597A (en) |
-
1979
- 1979-06-21 CA CA330,297A patent/CA1112597A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |