EP3374084A1 - Werkzeug zur bearbeitung von abrasiven materialien - Google Patents
Werkzeug zur bearbeitung von abrasiven materialienInfo
- Publication number
- EP3374084A1 EP3374084A1 EP16787786.9A EP16787786A EP3374084A1 EP 3374084 A1 EP3374084 A1 EP 3374084A1 EP 16787786 A EP16787786 A EP 16787786A EP 3374084 A1 EP3374084 A1 EP 3374084A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- hard metal
- metal plate
- base body
- recess
- 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.)
- Granted
Links
- 239000003082 abrasive agent Substances 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 128
- 239000002184 metal Substances 0.000 claims abstract description 128
- 238000003466 welding Methods 0.000 claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000011435 rock Substances 0.000 claims abstract description 12
- 239000004576 sand Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000003754 machining Methods 0.000 claims description 15
- 230000008021 deposition Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 21
- 239000000945 filler Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 238000005552 hardfacing Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- -1 ores Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004372 laser cladding Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000002347 wear-protection layer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/285—Teeth characterised by the material used
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2210/00—Codes relating to different types of disintegrating devices
- B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like
Definitions
- the invention relates to a tool for machining abrasive materials, in particular rocks, sand, oil sands or ores.
- crushers such as roll crushers or sizers, or excavators tools
- excavators tools are used for machining abrasive materials.
- the tools, such as crusher teeth or excavator teeth, are exposed to high wear and must therefore be replaced regularly.
- the wear of the tools is very different especially when mounted at different positions on the processing equipment tools. For example, crushing tools arranged within the material flow through the comminution device wear out considerably faster than the crushing tools at the edge of the material flow. Due to this irregular wear, it is known, for example, only exchange or repair individual crushing tools.
- a tool for processing abrasive materials in particular rocks, sand or ores, comprises a tool base body and at least one hard metal plate arranged on the tool base body, wherein a hardfacing is applied to the surface of the hard metal plate and to the tool body through which the hard metal plate connected to the tool body.
- Under abrasive materials are particularly minerals, such as rocks, ores, coal, sand and oil sand to understand.
- the tool comprises a crushing tool for comminuting rocks, oil sands, ores or other wear-causing materials, such as a crushing tooth or a blow bar of a roll crusher, a break hammer of a hammer crusher or baffles or prisms of a modular crushing jaw.
- the tool also includes, for example, an excavator tooth.
- the tool preferably has a locally delimitable wear region, which is arranged on the side faces of the breaking tool pointing substantially in the direction of force, in particular in the direction of crushing, and wears during operation of the tool.
- the worn area of the breaking tool is for example a recess on the surface of the tool.
- the tool base body comprises at least the area of the tool which is exposed to wear during the machining of abrasive materials.
- the tool body is formed of a steel.
- a hard metal plate is essentially a plate of a hard metal, such as sintered carbide, from particular 90-94% tungsten carbide and 6-10% cobalt to understand.
- a hard metal plate arranged on the tool body offers high wear protection of the surface of the tool body. In particular, the wear protection comprises only the Area of the tool body, where the largest wear occurs during operation of the tool.
- Overlay welding is a thermal coating process for surface treatment.
- Build-up welding provides a wear and corrosion resistant layer on a base material.
- a heat source for example a laser beam
- the surface of the area to be provided with the build-up weld is heated and a filler, in powder or wire, supplied and also heated by the heat source and applied to the surface of the tool body.
- the filler melts almost completely.
- the filler is, for example, a hard metal such as high nickel containing materials, tungsten carbide or titanium carbide.
- Cladding includes, for example, laser cladding or plasma powder cladding (PTA).
- PTA plasma powder cladding
- a build-up weld in contrast to other fasteners, such as soldering or welding the hard metal plate to the surface of the tool body, has the advantage that it has a high strength and low temperature increase of the hard metal and the material of the tool body.
- the tool base body of the tool is formed, for example, from a tempered steel, wherein welding or brazing, especially at high temperatures above about 600 ° C, destroys the microstructure of the material of the tool, thus reducing the hardness and strength of the material of the tool.
- Build-up welding has the advantage that it is connected via a metallurgical bond with the hard metal and the material of the tool body, so that the build-up welding is firmly connected to the surface of the tool body and the hard metal plate and withstands high mechanical loads.
- the build-up welding is applied in particular with a slight dilution of the hard metal of the hard metal plate and the material of the tool body on this.
- Laser deposition welding or plasma powder build-up welding (PTA) in particular, a slight dilution of the material of the tool body and the hard metal.
- the mixing is understood to be the ratio between the total mass of a component and the mass which is melted and joined by the build-up welding.
- the microstructure of the material is changed, for example destroyed, during melting and subsequent solidification. With a low degree of dilution a large part of the structure is retained, so that the hardness and the strength of the material are not at all or very little affected.
- the low mixing of the material of the breaking tool and the hard metal plate during build-up welding therefore reduces a deterioration of the mechanical properties of the hard metal plate and the tool body.
- the hard metal plate is at least partially covered by the build-up welding.
- a plurality of hard metal plates are attached to the tool base body, which are each connected to the tool body via a build-up welding.
- the carbide plates for example, have different geometries.
- the hard metal plates are arranged parallel to each other. A parallel arrangement of the hard metal plates to each other allows optimal absorption of forces acting on the tool, such as forces that occur when working on rocks, ores or sand, such as refractive power of a crushing device.
- each hard metal plate is connected to a respective adjacent hard metal plate via a build-up welding.
- the hard metal plates are particularly uniformly spaced from one another arranged on the tool body, wherein the distance between two adjacent hard metal plates is preferably formed such that the build-up welding between the hard metal plates by means of laser deposition welding can be applied.
- the distance between two hard metal plates has a value of 5-15 mm.
- the at least one hard metal plate is arranged on the tool base body such that it extends in the direction of action of a force acting on the tool.
- the parallel hard metal plates extend parallel to a refractive power of a crusher.
- the build-up welding applied to the hard metal plates wears faster than the hard metal plates, since the build-up welding has a lower wear resistance than the hard metal plate.
- a recess forms between the hard-metal plates so that the hard-metal plates act as cutting edges and facilitate the machining, for example the comminution of the material to be processed.
- material deposits thereby reducing further wear on the build-up weld.
- At least one hard metal plate is arranged in a body mounted in the surface of the tool groove. This simplifies the positioning of the at least one hard metal plate in the recess and in particular the application of the build-up weld on the hard metal plate.
- the tool base body has according to a further embodiment, a plurality of grooves, wherein each hard metal plate is arranged in each case a groove.
- the tool base body has according to a further embodiment, a recess, in particular a worn area, wherein the at least one hard metal plate is arranged in the recess.
- the recess is, for example, an area worn in the operation of the tool in the surface of the tool body.
- the at least one hard metal plate is formed and arranged in the recess so that it fills the cross section of the recess.
- the at least one hard metal plate is arranged such that it restores the original geometry of the tool. Under the original geometry of the tool, the geometry before the Occurrence of wear of the surface of the tool body understood in the processing of abrasive materials.
- the geometry of the hard metal plate corresponds to the cross section of the recess, so that the carbide plate arranged in the recess essentially restores the original cross-sectional geometry of the tool.
- the hard metal plates have, for example, different geometries and are arranged with the mounted on the hard metal plates build-up welds in the recess such that they fill the recess.
- a plurality of grooves for receiving in each case a hard metal plate are applied in the recess.
- the surfacing preferably comprises a filler material, in particular tungsten carbide or titanium carbide.
- the filler has a carbide concentration of about 50 - 61%, with a high wear resistance of the build-up welding is achieved.
- the thickness of the build-up welds is greater than the thickness of the at least one hard metal plate.
- a processing device includes, for example, a crushing device such as a roll crusher or a hammer crusher, wherein preferably a plurality of tools are arranged circumferentially on a crushing roller of the roll crusher.
- the invention further comprises a method for the production or preparation of a tool for processing abrasive materials, in particular rocks, sand or ores, wherein the tool has a tool base body, the method comprising the steps:
- the embodiments and advantages described with reference to the tool also apply in procedural correspondence to the method for producing or preparing a tool.
- the build-up welding is applied by means of laser welding or plasma powder build-up welding (PTA).
- a plurality of hard metal plates are arranged parallel to one another on the tool base body.
- Each hard metal plate is connected according to a further embodiment, at least with an adjacent hard metal plate and the tool body by a build-up welding.
- the tool body Prior to arranging the at least one hard metal plate on the tool body, the tool body is machined according to another embodiment. As a result, a uniform, simple geometry of the tool body is achieved, whereby the formation of the hard metal plates for arranging on the tool body is simplified. For example, the tool body is milled out
- the hard metal plates are arranged on the tool body in such a way that they extend substantially in the direction of the direction of action of a force acting on the tool.
- the plane of the at least one hard metal plate extends in the effective direction of the force, in particular a refractive power of a crushing device.
- At least one groove is introduced into the surface of the tool base body before the step of arranging the at least one hard metal plate on the tool base body, wherein the at least one hard metal plate is arranged in a groove.
- a plurality of parallel grooves are introduced in the surface of the tool body, wherein in each case one hard metal plate is arranged in each case a groove.
- the tool base has a recess, in particular a worn area, wherein the at least one hard metal plate is arranged in the recess.
- the grooves are applied in the recess of the tool body.
- FIG. 1 shows a schematic representation of a tool in a side view with a hard metal plate according to an embodiment.
- FIG. 2 shows a schematic representation of a tool in a front view with a plurality of hard metal plates according to the exemplary embodiment of FIG. 1.
- FIG. 1 shows a schematic representation of a tool in a side view with a hard metal plate according to an embodiment.
- FIG. 2 shows a schematic representation of a tool in a front view with a plurality of hard metal plates according to the exemplary embodiment of FIG. 1.
- FIG. 1 shows a schematic representation of a tool in a side view with a hard metal plate according to an embodiment.
- FIG. 2 shows a schematic representation of a tool in a front view with a plurality of hard metal plates according to the exemplary embodiment of FIG. 1.
- FIG. 3 shows a schematic representation of a tool in a front view with a plurality of hard metal plates according to another
- FIG. 4 shows a schematic representation of a crushing device in a side view with a tool according to a further exemplary embodiment.
- Fig. 1 shows a tool 10 of a device, not shown, for processing abrasive materials, such as rock, sand or ore.
- the tool 10 shown schematically is in particular a Crushing tooth for attachment to a crushing roller or an excavator bucket.
- the tool has a main body 18, which essentially has the shape of a parallelogram in cross section, wherein the side surfaces of the tool 10 are inclined in the machining direction, in particular in the breaking direction of a breaking tool.
- the machining direction is in particular the direction in which the tool 10 moves during operation of the crushing device for processing the material.
- the side surface of the tool 10 shown on the left in FIG. 1 has, in operation, the machining device in the machining direction.
- the tool 10 is mounted, for example, on a roll of a roll crusher, wherein in the operation of the tool 10, shown in Fig. 1 left, substantially tooth-shaped inclined side surface and the upper surface of the tool 10 are exposed to the greatest wear.
- the tool 10 can also be further tools, in particular a locally delimitable wear surface, such as a breaking tooth of any tooth form or a hammer head of a hammer crusher.
- the tool 10 has a tool base body 18 with a recess 14 which, for example, comprises an area worn on the surface of the tool tool body 18 during operation of the machining device.
- the recess 14 extends from the working-direction-facing side surface to the upper surface of the tool 10.
- a hard metal plate 12 is arranged in the recess 14.
- the hard metal plate 12 has substantially the shape of the cross section of the recess 14 and is arranged in the recess 14 so that it fills the cross section of the recess.
- the hard metal plate 12 disposed in the recess 14 restores the original cross-section of the tool prior to the formation of the wear-related recess 14 in the surface.
- the hard metal plate 12 is connected to the base body 18 of the tool 10 via a buildup weld 16.
- FIG. 2 shows a cross-section of a front view of a tool 10 corresponding to the tool of FIG.
- the recess 14 extends, for example, over the entire width of the side surface facing in the machining direction.
- a plurality of hard metal plates 12 are parallel and even to each other spaced apart.
- the hard metal plates all have substantially the same shape and are arranged in the recess 14 so as to extend substantially in the machine direction.
- Between adjacent hard metal plates 12 each welds 16 are arranged to connect the adjacent hard metal plates 12 together and the hard metal plates 12 with the tool base 18 of the tool 10.
- the hardfacing 16 extend between the hard metal plates 12 over the entire height of the hard metal plates 12.
- the hard metal plates 12 and the buildup welds 16 are arranged in the recess 14 of the tool body 18 such that at a worn tool body 18, the original shape of the tool body 18 before training the wear-related recess 14 is restored.
- the hard metal is, in particular, sintered carbide hard metals, which are preferably embedded in 90-94% tungsten carbide in 6-10% cobalt, in particular a cobalt matrix.
- the build-up welds have, for example, a hard metal additive, in particular tungsten carbides or titanium carbides.
- the build-up welds are preferably connected via a metallurgical bond with the hard metal of the hard metal plates.
- the build-up welding is applied to the hard metal plates and the tool base 18 of the tool 10 by means of laser welding.
- the build-up welding is applied to the hard metal plate in such a way that a slight mixing between the hard metal and the build-up weld is produced.
- the distance of the hard metal plates 12 is formed such that the application of a build-up welding 16, for example by means of laser welding, between two adjacent hard metal plates 12 is possible.
- FIG. 3 shows a tool 10, which substantially corresponds to the tool 10 of FIG. 2, wherein, in contrast to the tool of FIG. 2, a plurality of grooves 20 are applied in the recess 14.
- the grooves 20 extend substantially parallel to each other and have a width corresponding to the width of the hard metal plates.
- the grooves 20 form a receptacle for the hard metal plates 12 and extend in particular over the entire length of Recess.
- each groove 20 each have a hard metal plate 12 is arranged.
- the surfacing 16 is applied in the embodiment shown in FIG. 3 only between adjacent hard metal plates 12 and the surface of the recess 14. Within the grooves 20 no buildup weld 16 is applied.
- the grooves 20 allow accurate positioning of the hard metal plates 12 in the recess 14 of the tool 10, further facilitating the application of the buildup weld 16 to the hard metal plates 12 and the surface of the recess 14.
- FIG. 4 shows a processing device 22, in particular a crushing device with a roll crusher and a tool 10 with a hard metal plate 12, which is arranged in a recess 14, in particular a worn region, as described with reference to FIGS. 1, 2 or 3.
- the crushing device 22 has two crushing rollers 24 which rotate in the opposite direction to one another in the direction of the arrow, the direction of rotation of the crushing rollers 24 being the direction of refraction.
- On the outer periphery of the crushing rollers 24, a plurality of tools 10 are arranged uniformly spaced from each other. Between the crushing rollers 24, a crushing gap 26 is formed, in which the crushing material to be crushed is fed.
- the tools 10 are arranged on the outer circumference of the crushing rollers 24 in such a way that the recesses 14, in particular the worn region, point in the direction of rotation of the crushing rollers 24.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RS20220785A RS63505B1 (sr) | 2015-11-09 | 2016-10-21 | Alat za obradu abrazivnih materijala |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015222020.6A DE102015222020A1 (de) | 2015-11-09 | 2015-11-09 | Werkzeug zur Bearbeitung von abrasiven Materialien |
PCT/EP2016/075418 WO2017080796A1 (de) | 2015-11-09 | 2016-10-21 | Werkzeug zur bearbeitung von abrasiven materialien |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3374084A1 true EP3374084A1 (de) | 2018-09-19 |
EP3374084B1 EP3374084B1 (de) | 2022-07-20 |
Family
ID=57208268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16787786.9A Active EP3374084B1 (de) | 2015-11-09 | 2016-10-21 | Werkzeug zur bearbeitung von abrasiven materialien |
Country Status (11)
Country | Link |
---|---|
US (1) | US10882049B2 (de) |
EP (1) | EP3374084B1 (de) |
CN (1) | CN108348921B (de) |
AU (1) | AU2016352428B2 (de) |
BR (1) | BR112018006869B1 (de) |
CA (1) | CA3000068C (de) |
CL (1) | CL2018000879A1 (de) |
DE (1) | DE102015222020A1 (de) |
RS (1) | RS63505B1 (de) |
RU (1) | RU2685008C1 (de) |
WO (1) | WO2017080796A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015222020A1 (de) * | 2015-11-09 | 2017-05-11 | Thyssenkrupp Ag | Werkzeug zur Bearbeitung von abrasiven Materialien |
JP6804143B2 (ja) * | 2016-09-30 | 2020-12-23 | 株式会社小松製作所 | 耐土砂摩耗部品およびその製造方法 |
DE102017210780B3 (de) * | 2017-06-27 | 2018-05-17 | Thyssenkrupp Ag | Brechwerkzeug sowie Verfahren zum Herstellen eines Brechwerkzeugs |
GB201721690D0 (en) * | 2017-12-22 | 2018-02-07 | Element Six Uk Ltd | Striking tool for use in a high speed comminution mill |
US11882777B2 (en) | 2020-07-21 | 2024-01-30 | Osmundson Mfg. Co. | Agricultural sweep with wear resistant coating |
CA3223843A1 (en) * | 2021-07-15 | 2023-01-19 | Scott BAHR | Rebuildable hard surface cutting tip for mining bit |
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US276200A (en) * | 1883-04-24 | Machine for hulling and cleaning wheat | ||
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US2635817A (en) * | 1950-08-21 | 1953-04-21 | Leo H Long | Impact breaker bar mechanism |
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US3838826A (en) * | 1972-09-27 | 1974-10-01 | Capeletti Bros Inc | Removable caps for crusher hammer assembly |
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SU732466A1 (ru) * | 1974-03-22 | 1980-05-05 | Донецкий Ордена Трудового Красного Знамени Политехнический Институт | Зуб ковша землеройной машины |
DE2422761A1 (de) | 1974-05-10 | 1975-11-20 | Wahl Verschleiss Tech | Zerkleinerungs-werkzeug |
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-
2015
- 2015-11-09 DE DE102015222020.6A patent/DE102015222020A1/de not_active Ceased
-
2016
- 2016-10-21 EP EP16787786.9A patent/EP3374084B1/de active Active
- 2016-10-21 WO PCT/EP2016/075418 patent/WO2017080796A1/de active Application Filing
- 2016-10-21 CA CA3000068A patent/CA3000068C/en active Active
- 2016-10-21 CN CN201680064991.7A patent/CN108348921B/zh active Active
- 2016-10-21 RS RS20220785A patent/RS63505B1/sr unknown
- 2016-10-21 RU RU2018103880A patent/RU2685008C1/ru active
- 2016-10-21 BR BR112018006869-1A patent/BR112018006869B1/pt active IP Right Grant
- 2016-10-21 US US15/770,713 patent/US10882049B2/en active Active
- 2016-10-21 AU AU2016352428A patent/AU2016352428B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
US20180250681A1 (en) | 2018-09-06 |
RU2685008C1 (ru) | 2019-04-16 |
CA3000068A1 (en) | 2017-05-18 |
EP3374084B1 (de) | 2022-07-20 |
WO2017080796A1 (de) | 2017-05-18 |
AU2016352428A1 (en) | 2018-04-12 |
RS63505B1 (sr) | 2022-09-30 |
DE102015222020A1 (de) | 2017-05-11 |
CA3000068C (en) | 2020-09-15 |
AU2016352428B2 (en) | 2019-09-12 |
CL2018000879A1 (es) | 2018-06-01 |
US10882049B2 (en) | 2021-01-05 |
BR112018006869B1 (pt) | 2021-08-24 |
CN108348921B (zh) | 2021-03-12 |
BR112018006869A2 (pt) | 2018-11-06 |
CN108348921A (zh) | 2018-07-31 |
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