CN117280052A - Method and apparatus for extracting cemented carbide bodies from components - Google Patents
Method and apparatus for extracting cemented carbide bodies from components Download PDFInfo
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- CN117280052A CN117280052A CN202280033572.2A CN202280033572A CN117280052A CN 117280052 A CN117280052 A CN 117280052A CN 202280033572 A CN202280033572 A CN 202280033572A CN 117280052 A CN117280052 A CN 117280052A
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 74
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 7
- 230000006698 induction Effects 0.000 claims description 23
- 238000000605 extraction Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000005065 mining Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- -1 tungsten metals Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/005—Separation by a physical processing technique only, e.g. by mechanical breaking
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Carbon And Carbon Compounds (AREA)
- Automatic Assembly (AREA)
- General Induction Heating (AREA)
Abstract
A method for recovering at least one cemented carbide body from a component, comprising the steps of: first clamping the component in a clamping device; and then heating and vibrating the component simultaneously or in a cyclic manner to dislodge the at least one cemented carbide body from the component. Furthermore, an apparatus for recovering at least one cemented carbide body from a component having an axial axis, comprising: a vibration device for vibrating the component in a vertical direction relative to the axial axis; clamping means for positioning the component such that the cemented carbide body vibrates in a vertical direction relative to the axial axis; at least one heating device for heating the component while vibrating the component.
Description
Technical Field
The present invention relates to a method and apparatus for extracting at least one cemented carbide body from a component, and in particular, but not exclusively, to extracting at least one used cemented carbide body from a mining or construction component.
Background
Cemented carbide bodies are widely used in components such as drilling tools, cutting tools, mining tools and machining tools and in parts with high wear resistance. However, when the cemented carbide body becomes too worn, the cemented carbide body becomes ineffective and the component is therefore scrapped. Tungsten and cobalt in the cemented carbide body are both strategically rare metals, so being able to extract the cemented carbide body from the component has significant value and environmental benefits. Cemented carbide scrap is considered an important auxiliary resource for cobalt and tungsten metals. Thus, when these components are discarded, they are collected and recycled to recover the discarded cemented carbide, which can be recycled to produce new components.
Known extraction methods (such as the extraction method disclosed in US 4170513) comprise recovering a cemented carbide body from a worn component by: a sulfuric acid bath is used to etch away a portion of the steel surrounding the blade, then the component is heated in a furnace, and then the heated component is subsequently vibrated to knock out the blade. However, this type of process has several problems. The extraction time is long and not all of the bulk is extracted, meaning that either the process needs to be repeated, which adds further processing time and cost, or the recovered yield is not as high as desired. Another problem is that the heated components need to be manually moved from the oven to the vibrating device, which is a health and safety hazard.
It is therefore desirable to find a new method of extracting cemented carbide bodies from components that is safer, faster and results in higher extraction yields, wherein up to all components can be cleaned in one process and that does not involve manual manipulation of the heated components.
Disclosure of Invention
It is an object of the present invention to provide a method and an apparatus for extracting cemented carbide bodies from components which are safer, faster, more environmentally friendly and result in a higher extraction yield, and to improve the apparatus for said method.
These objects are achieved in a first aspect of the present application by providing a method for recovering at least one cemented carbide body from a component, the method comprising the steps of:
a) Firstly, clamping a part in a clamping device; then
b) The component is heated and vibrated simultaneously or in a cyclic manner to dislodge the at least one cemented carbide body from the component.
Advantageously, the at least one cemented carbide body is extracted in a much shorter time by heating and vibrating the component simultaneously or in a cyclic manner. Typically, the component will have a plurality of cemented carbide bodies attached and using this method the yield of extracting bodies from the component is much higher, i.e. the yield of cemented carbide bodies recovered per hour is increased. Another advantage of this method is that no manual manipulation of the heated components is required, thus making the recycling process safer. The method works by locally heating the component in the area where heating is required to extract the cemented carbide body, thus reducing the required energy input compared to preheating the whole component in a furnace before vibrating the component. In addition, this method is safer and requires less manpower.
In one embodiment, induction heating is used to heat the components. Advantageously, the induction heating enables heating to be directed to a specific area of the component to which the cemented carbide body is attached. Thus, the required energy input is minimized and this is made an energy efficient process.
Alternatively, flame heating is used to heat the components. Advantageously, flame heating is a heating method that is very simple and inexpensive to use.
In one embodiment, in step b), the component is heated to a temperature between 600-1000 ℃, preferably to a temperature between 700-900 ℃. Advantageously, this temperature range enables the most efficient extraction of cemented carbide inserts from the component without completely melting the steel of the component or using unnecessarily high energy. The temperature to which the component is heated may be measured, for example, using an IR gun. Different components may require different temperatures. Preferably, the component is heated to as low a temperature as possible.
In one embodiment, there is an additional step between steps a) and b) in which the component is preheated before being heated and vibrated simultaneously. Advantageously, the addition of preheating reduces the total recovery time. Preferably, the preheating temperature is between 600-1000 ℃, more preferably between 700-900 ℃.
In one embodiment, induction heating is used to preheat the components. Advantageously, the induction heating enables heating to be directed to a specific area of the component to which the cemented carbide body is attached. Thus, the required energy input is minimized and this is made an energy efficient process.
Alternatively, flame heating is used to preheat the components. Advantageously, flame heating is a heating method that is very simple and inexpensive to use.
Alternatively, furnace heating is used to preheat the components.
In one embodiment, the vibration of the components is controlled by compressed air. Advantageously, this directs more force to the cemented carbide body, thus meaning that they are recovered from the component in the most time-efficient and energy-efficient manner.
Alternatively, the vibration of the components is controlled by an electric motor or any other suitable device.
In one embodiment, during step b), the component is rotated in a radial direction and/or in an axial direction. Thus, the component is rotated while being heated and vibrated. This may be particularly advantageous when the component comprises a cemented carbide body protruding in multiple directions, for example in the case of a rotating cone.
According to a second aspect of the present application, there is an alternative method for recovering at least one cemented carbide body from a component, the method achieving the above object, the method comprising the steps of:
a) Firstly, clamping a component in a clamping device;
b) Secondly, heating the at least one cemented carbide body using induction heating; and then
c) Third, vibrating the component to disengage the at least one cemented carbide body from the component.
Advantageously, the use of induction heating to heat the component enables the heating to be directed to a specific area of the component to which the cemented carbide body is attached. Thus, the required energy input is minimized and this makes it a more environmentally friendly and safer energy and time efficient process.
In one embodiment, in step b), the component is heated to a temperature between 600-1000 ℃, preferably to a temperature between 700-900 ℃. In one embodiment, the vibration of the components is controlled by compressed air. In one embodiment, during step b), the component is rotated in a radial direction and/or in an axial direction.
According to a third aspect of the present invention there is an apparatus for recovering at least one cemented carbide body from a component having an axial axis, the apparatus comprising:
a vibrating device for vibrating the component in a direction having an angle of less than 30 ° with respect to the axial axis; clamping means for positioning the component such that the cemented carbide body vibrates in a direction having an angle of less than 30 ° relative to the axial axis; and at least one heating device for heating the component while vibrating the component.
Advantageously, the apparatus is capable of vibrating and heating the components simultaneously. Furthermore, this arrangement means that: the component is limited to vibrating and moving only in the most advantageous direction (e.g. vertically, or in a direction having an angle of less than 30 °).
In one embodiment, the clamping means comprises a plate with a drop-shaped opening. Advantageously, this enables a wide range of component sizes and shapes to be maintained using the same clamping means. This design of the clamping device minimizes movement of the component relative to the clamping device. Furthermore, even if different sized components are clamped, the clamping means enables the centre point of the component to remain relatively unchanged with respect to the heater, which means that: advantageously, the heating means does not need to be repositioned when processing components of different sizes, which saves processing time.
In one embodiment, the clamping means comprises a threaded member. Advantageously, this provides a reliable grip for holding the component in the desired position.
In one embodiment, the vibration device is a compressed air controlled vibration device. Advantageously, this directs more force to the cemented carbide body, thus meaning that they are recovered from the component in the most time-efficient and energy-efficient manner.
In one embodiment, the apparatus further comprises a vertical block positioned between the vibration device and the clamping device and at least one guide bar. Advantageously, this guides the vibrations in a vertical direction with respect to the axial axis.
In one embodiment, the heating device is an induction heater, also known as a high frequency heater. Advantageously, the induction heating means may be positioned where it is desired to locally heat the component in the correct position, so that the cemented carbide body is removed in the most time-efficient and energy-efficient manner. Furthermore, the induction heating device does not propagate any heat up into the vibration device, and all heat can be directed to the component.
Drawings
Specific embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram of an apparatus.
Fig. 2 is a schematic view of a preferred embodiment of the clamping device.
Detailed Description
Fig. 1 shows a schematic view of an apparatus 8 for recovering at least one cemented carbide body 2 from a component 4, said component 4 having an axial axis 40. The device 8 comprises: a vibrating device 10 for vibrating the component 4 in any rotational direction in a direction having an angle of less than 30 °, preferably less than 20 °, with respect to the axial axis 40, more preferably vibrating the component 4 vertically with respect to the axial axis 40; clamping means 6, also called clamps, for positioning the component 4 such that the at least one cemented carbide body 2 vibrates vertically in any direction of rotation, more preferably with respect to the axial axis 40, in a direction having an angle of less than 30 °, preferably less than 20 °, with respect to the axial axis 40; and at least one heating device 12 for heating the vibration member 4 simultaneously with or in circulation with the vibration member 4. The clamping means 6 are typically made of steel and are fixed to the frame 36 and are adapted to clamp the cold or preheated component 4. The holding means 6 may also be movable so that the component 4 can be rotated as desired, which rotation can be controlled using a programmable rotator.
Preferably, the vibration device 10 is a compressed air controlled vibration device 10. The pressure and flow rate of the compressed air may be controlled to optimize the vibration such that the energy is directed for removing the at least one cemented carbide body 2. Preferably, a PLC controlled valve is used to optimize vibration. Alternatively, the vibration device 10 may be controlled using an electric motor or any other suitable device. Alternatively, the vibration device 10 is an electric motor or any other suitable vibration device.
The cleaning process to extract the blade is performed by vibrating the gripping device 6 and the component 4 in a vibrating motion that is controlled in force and speed by the vibrating device 10 in a turning and controlled pulse process.
Preferably, the vibration device 10 is attached to the clamping device 6 such that the vibration of the component 4 is accomplished by the clamping device 6. Alternatively, the vibration device 10 may be directly connected to the component 4, such that the vibration of the component 4 acts directly on the component 4.
Optionally, at least one vertical block 26 and at least one guide bar 28 are positioned between the vibrating device 10 and the clamping device 6. Typically, the vertical block is made of steel or aluminum, but it may be made of any other suitable material capable of directing vibrations in a preferred direction.
Optionally, a damping element 38 (e.g., a coil spring or rubber damper) may be positioned axially between the vibration device 10 and the at least one vertical block 26 to reduce the impact of vibration on the frame 36.
Preferably, the heating means 12 is an induction heater, also known as a high frequency heater. Induction heating is a process of heating an electrically conductive object by means of electromagnetic induction that generates heat in the object by eddy currents. An induction heater consists of an electromagnet and an electronic oscillator that passes high frequency Alternating Current (AC) through the electromagnet. The rapidly alternating magnetic field penetrates the object, generating an electric current inside the conductor, which is called eddy current. The eddy currents flowing through the material resistance heat the material by joule heating.
The heating device 12 may be manually or automatically moved in both the vertical and horizontal directions.
The induction heater typically has a circular or U-shaped coil, but the coil may be molded to any other suitable shape or size to suit the geometry of the part 4 being treated. Typically, the induction heater comprises a single coil, but multiple coils may also be used. The heating device 12 is preferably held in place using a heating device bracket 14. The heating device holder 14 can be moved manually or automatically in order to be able to position the heating device 12 in the correct position relative to the component 4 in order to achieve an optimal distance between the heating device 12 and the component 4, i.e. as close as possible, in order to be able to achieve the most efficient heating without causing a short circuit. Alternatively, the heating device 12 may be held in place by hand.
Alternatively, the heating device 12 may be a fired heater, which may be positioned by hand or using the heating device holder 14. For example, acetylene and compressed air fired heaters may be used, the type of fired heater producing a flame that is hot enough to heat the component 4 to the desired temperature, but not so hot that the steel of the component 4 will melt, which would make extraction of the cemented carbide 2 insert more difficult, but any other type of fired heater may be used. Alternatively, a combination of induction heating and flame heating may be used.
A safety cage (not shown) may be installed to guide the at least one hot extracted cemented carbide body 2 into a hopper (not shown) and down into a collection bin (not shown), which may be insulated.
Fig. 2 shows a preferred embodiment of the clamping device 6, wherein the clamping device 6 comprises a plate 16, said plate 16 having a drop-shaped opening 18; a threaded member 42, in this case, the threaded member 42 being a nut 20 welded to the plate 16 for receiving the fastening bolt 22; and wherein the fastening bolt 22 comprises a hardened centre pin 24, said centre pin 24 being intended to be pressed into the component to hold the component firmly in place. The hardened center pin 24 is free to rotate about when force from the fastening bolt 22 is applied. Alternative designs of threaded members 42 or any other suitable non-threaded gripping means 6, such as a lever means, may also be used.
Preferably, the amount of heat input to the clamping device 6 is kept to a minimum. Thus, the clamping device 6 may be water cooled.
The method of recovering at least one cemented carbide body 2 from a component 4 comprises the steps of: a) The component 4 is clamped in the clamping device 6. Then b) heating and vibrating the component 4 simultaneously or in a cyclic manner to dislodge the at least one cemented carbide body 2 from the component 4.
In one embodiment, the heating and vibrating may be performed simultaneously. In another embodiment, the heating and vibrating may be performed in a cyclic manner. By cycling is meant that the component 4 is first heated to a target temperature range specific to the component 4, then the heating may be paused, then vibration is started immediately or shortly thereafter (e.g. less than one minute), then vibration is paused, then heating is started again immediately or shortly thereafter (e.g. less than one minute), etc., and the cycle is repeated until all cemented carbide bodies 2 have been retrieved. Alternatively, a combination of heating and vibration both simultaneously and in a cyclic manner may be used. The at least one carbide body 2 may be, but is not limited to, a mining blade, pick or blade-shaped carbide unit, but may also be any other carbide body 2 attached to the component 4.
The component 4 is typically a mining or construction component and may be, for example, a top hammer drill bit or leg, a down-the-hole (DTH) bit or leg, a roller cone bit, a pick, a raised bore housing, a rotary bit roller cone or leg, a Horizontal Direction Drill (HDD) head or leg, or a reamer block leg, but may be any other component 4 to which at least one cemented carbide body 2 is attached. The component 4 is typically made of steel and once all the cemented carbide body 2 is removed, the steel from the component 4 may also be recycled.
The recycling method may be used for a component 4, in which component 4 the at least one cemented carbide insert 2 is pressed or brazed in place or held in any other way.
Typically, this recycling process will be used to recycle at least one cemented carbide body 2 from the used component 4, in which case they are often referred to as dulled components 4. However, if desired, the method may also be used for removing at least one cemented carbide body 2 from an unused new component 4.
The component 4 vibrates in a vertical direction with respect to the axial axis 40 and is clamped in place such that the cemented carbide body 2 faces downwards. For a component 2 in which the cemented carbide body 2 is positioned in multiple directions, such as a rotating puck or HDD cone, it may be desirable to rotate the component 4 so that all cemented carbide bodies 2 are positioned downward at some point.
Typically, in step b), the component 4 is heated to a temperature between 600-1000 ℃, more preferably to a temperature between 700-900 ℃. The component 4 may continue to be heated until all cemented carbide bodies 2 have been retrieved.
The relative position of the component 4 and the heating means 12 may be varied during operation to heat different areas of the component 4 as required to optimise the recovery rate of the at least one cemented carbide body 2 from the component 4. When using induction heating, the coil should be positioned as close as possible to the component 4 to achieve the most efficient heating, so that minimal heat input is required during the fastest extraction time, but not so close as to avoid contact and short circuits. The size and shape of the coil should be selected to maximize heating efficiency.
A programmable rotation device may be used so that the rotation is preprogrammed for proceeding to suit the geometry of the particular part being processed.
Optionally, there is an additional step between steps a) and b), wherein the component 4 is preheated. If a preheating step is included, this may be done with the cemented carbide body 2 facing downward or upward, i.e.: in the same position as in step b), or upside down. The preheating step is preferably performed using induction heating, but may also be performed using flame heating or in a furnace. A combination of induction heating, flame heating and furnace heating may also be used for preheating if desired. If preheating is used, the component 4 will typically be heated to 600-1000 ℃, preferably 700-900 ℃.
The at least one cemented carbide body 2 recovered may then be collected and allowed to fall into a collection bin (not shown) where they are left to cool. Once all cemented carbide bodies 2 have been removed, the component 4 is moved to a release position from which the component 4 falls down to be cooled.
Alternatively, the method of recovering at least one cemented carbide body 2 from a component 4 comprises the steps of: first, the component is clamped in the clamping device 6; secondly, heating the at least one cemented carbide body 2 using induction heating; and then third, vibrating the component 4 to disengage the at least one cemented carbide body 2 from the component 4.
The apparatus 8 may also be set in any of the methods described herein such that at least one cemented carbide body 4 may be removed from multiple components 4 simultaneously. For example, the plurality of components 4 may be fixed to the plate, for example by welding, so as to process all at once.
Claims (15)
1. A method for recovering at least one cemented carbide body (2) from a component (4), comprising the steps of:
a) Firstly clamping the component in a clamping device (6); and then
b) Simultaneously or in a cyclic manner heating and vibrating the component (4) to dislodge the at least one cemented carbide body (2) from the component (4).
2. Method according to claim 1, wherein the component (4) is heated using induction heating.
3. The method according to claim 1, wherein the component (4) is heated using flame heating.
4. A method according to any one of the preceding claims, wherein in step b) the component (4) is heated to a temperature between 600-1000 ℃.
5. A method according to any of the preceding claims, wherein there is an additional step between steps a) and b), wherein the component (4) is preheated before the component is heated and vibrated simultaneously.
6. A method according to claim 5, wherein induction heating is used to preheat the component (4).
7. A method according to any one of the preceding claims, wherein the vibration of the component (4) is controlled by compressed air.
8. Method according to any of the preceding claims, wherein the component (4) is rotated in a radial direction and/or in an axial direction during step b).
9. A method for recovering at least one cemented carbide body (2) from a component (4), comprising the steps of:
a) Firstly, clamping the component in a clamping device (6);
b) Secondly, heating the at least one cemented carbide body (2) using induction heating; and then
c) Third, vibrating the component (4) to disengage the at least one cemented carbide body (2) from the component (4).
10. An apparatus (8) for recovering at least one cemented carbide body (2) from a component (4), the component (4) having an axial axis (40), the apparatus (8) comprising:
-vibration means (10) for vibrating the component (4) in a direction having an angle of less than 30 ° with respect to the axial axis (40);
-clamping means (6) for positioning the component (4) such that the at least one cemented carbide body (2) vibrates in a direction having an angle of less than 30 ° with respect to the axial axis (40);
-at least one heating device (12) for heating the component (4) while vibrating the component (4).
11. The apparatus (8) according to claim 11, wherein the clamping device (6) comprises:
a plate (16) having a drop-shaped opening (18).
12. Apparatus (8) according to claim 10 or claim 11, wherein the clamping means comprise a threaded member (42).
13. The apparatus (8) according to claim 11 or claim 12, wherein the vibration device (10) is a compressed air controlled vibration device.
14. The apparatus (8) according to any one of claims 11-13, further comprising at least one guide bar (28) and a vertical block (26) positioned between the vibrating device (10) and the clamping device (6).
15. The apparatus (8) according to any one of claims 11-14, wherein the heating device (12) is an induction heater.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21174416.4 | 2021-05-18 | ||
| EP21174416 | 2021-05-18 | ||
| PCT/EP2022/059496 WO2022242959A1 (en) | 2021-05-18 | 2022-04-08 | Method and apparatus for extraction of cemented carbide bodies from a component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117280052A true CN117280052A (en) | 2023-12-22 |
Family
ID=76355221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202280033572.2A Pending CN117280052A (en) | 2021-05-18 | 2022-04-08 | Method and apparatus for extracting cemented carbide bodies from components |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP4341455A1 (en) |
| JP (1) | JP2024520332A (en) |
| KR (1) | KR20240009932A (en) |
| CN (1) | CN117280052A (en) |
| AU (1) | AU2022275974A1 (en) |
| BR (1) | BR112023024229A2 (en) |
| CA (1) | CA3215381A1 (en) |
| CL (1) | CL2023003397A1 (en) |
| MX (1) | MX2023013708A (en) |
| PE (1) | PE20240129A1 (en) |
| WO (1) | WO2022242959A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4170513A (en) | 1978-06-06 | 1979-10-09 | Fernand Piche Enterprises Limited | Recovery of tungsten carbide from scrap mining bits |
| HU183442B (en) * | 1981-05-18 | 1984-05-28 | Vasipari Kutato Intezet | Method and apparatus for reusing hard metal waste by application of plasmatechnic |
| CN208033007U (en) * | 2018-01-10 | 2018-11-02 | 济南新宇硬质合金有限公司 | Hard alloy scrap retracting device |
| CN111426192A (en) * | 2020-04-13 | 2020-07-17 | 湖南天益高技术材料制造有限公司 | Method for recycling waste hard alloy roll collars |
-
2022
- 2022-04-08 KR KR1020237038221A patent/KR20240009932A/en unknown
- 2022-04-08 MX MX2023013708A patent/MX2023013708A/en unknown
- 2022-04-08 JP JP2023571414A patent/JP2024520332A/en active Pending
- 2022-04-08 PE PE2023002889A patent/PE20240129A1/en unknown
- 2022-04-08 CA CA3215381A patent/CA3215381A1/en active Pending
- 2022-04-08 WO PCT/EP2022/059496 patent/WO2022242959A1/en active Application Filing
- 2022-04-08 CN CN202280033572.2A patent/CN117280052A/en active Pending
- 2022-04-08 AU AU2022275974A patent/AU2022275974A1/en active Pending
- 2022-04-08 BR BR112023024229A patent/BR112023024229A2/en unknown
- 2022-04-08 EP EP22721755.1A patent/EP4341455A1/en active Pending
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2023
- 2023-11-14 CL CL2023003397A patent/CL2023003397A1/en unknown
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|---|---|
| BR112023024229A2 (en) | 2024-01-30 |
| WO2022242959A1 (en) | 2022-11-24 |
| PE20240129A1 (en) | 2024-01-25 |
| CA3215381A1 (en) | 2022-11-24 |
| AU2022275974A1 (en) | 2023-11-09 |
| JP2024520332A (en) | 2024-05-24 |
| KR20240009932A (en) | 2024-01-23 |
| CL2023003397A1 (en) | 2024-06-21 |
| EP4341455A1 (en) | 2024-03-27 |
| MX2023013708A (en) | 2024-01-16 |
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