CN106312075A - Method for sinter molding of guide wheel based on reduced and carbonized hard alloy - Google Patents
Method for sinter molding of guide wheel based on reduced and carbonized hard alloy Download PDFInfo
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- CN106312075A CN106312075A CN201610701810.9A CN201610701810A CN106312075A CN 106312075 A CN106312075 A CN 106312075A CN 201610701810 A CN201610701810 A CN 201610701810A CN 106312075 A CN106312075 A CN 106312075A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000000465 moulding Methods 0.000 title claims abstract description 12
- 239000000956 alloy Substances 0.000 title abstract 4
- 229910045601 alloy Inorganic materials 0.000 title abstract 4
- 239000000843 powder Substances 0.000 claims abstract description 79
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000003112 inhibitor Substances 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 238000009768 microwave sintering Methods 0.000 claims abstract description 12
- 238000001238 wet grinding Methods 0.000 claims abstract description 6
- 238000005245 sintering Methods 0.000 claims description 21
- 238000003763 carbonization Methods 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000498 ball milling Methods 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000003701 mechanical milling Methods 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 claims description 5
- 238000011105 stabilization Methods 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 238000000280 densification Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000000227 grinding Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003966 growth inhibitor Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/001—Starting from powder comprising reducible metal compounds
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1054—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by microwave
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Powder Metallurgy (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a method for sinter molding of a guide wheel based on reduced and carbonized hard alloy. The method for sinter molding of the guide wheel based on the reduced and carbonized hard alloy comprises the first step of proportioning of materials, specifically, the materials include 60%-75% of WC powder, 6%-7.5% of Co powder, 0.6%-0.75% of a grain inhibitor, and the balance carbonized ceramic powder; the second step of wet grinding; the third step of screening and drying; and the fourth step of microwave sintering. According to the method for sinter molding of the guide wheel based on the reduced and carbonized hard alloy, the high-hardness guide wheel structure prepared from the WC powder, the Co powder, the grain inhibitor and the balance carbonized ceramic powder through the microwave sintering process reflects the structural brittleness of carbonized ceramic and has the advantages of being low in plasticity, not prone to deformation and capable of improving the product precision when the guide wheel is in an operating state.
Description
Technical field
The invention belongs to mill guide wheel technical field, particularly relate to a kind of sintering cemented carbide based on reduction and carbonization
The method of type mill guide wheel.
Background technology
Guide wheel is the important spare part that consumption is bigger in hot rolled rod production line, is the crucial portion in steel rolling guide assembly
Part, the shadow land measure equal to fifteen mu in most parts of the Northeast the technical-economic indexes such as operating rate of rolling mill.The a lot of guide and guard part heat resistances used are not enough, occur that steel bonding etc. shows
As, also have some process conditions wearabilities, thermal fatigue property bad, have impact on service life and mill bar quality.
The physical essence of hardness abrasion is the fracture process of a kind of specific form, occurs at the top layer of wear-out part and Ya Biao
Layer.When considering hardness number, it is impossible to simply think that hardness more high-wearing feature is the best, its under various regimes hard to be taken into full account
Degree.Such as: the hardness changed due to Surface hardened layer or softening in work process；Surface is made owing to contacting with high temperature rolled piece
Temperature raises, and will consider temperature hardness.
Toughness rolls the fracture of guide wheel and is generally brittle fracture.For preventing the generation of brittle failure, resisting of material to be improved constantly
Fracture energy.
Microwave sintering is the novel sintered technology of the one grown up nearly ten years, and it is with conventional heating mode the most not
With.Conventional heating is dependent on heater and by convection current, conduction or radiation mode, heat energy is transferred to heating object reaches certain
One temperature, from outside to inside, sintering time is the longest for heat, hardly results in thin crystalline substance, because fine powder meeting in long-time sintering process
Growing up, for preventing crystal grain in sintering from growing up, typically add a small amount of grain growth inhibitor in dispensing, this makes complex process
Change.
And microwave sintering is dependent on material itself and absorbs kinetic energy and the potential energy that microwave energy is material internal molecule, material
Inside and outside the most uniformly heating, such material internal thermal stress can be reduced to minimum degree, secondly under microwave electromagnetic can act on,
The kinetic energy of material internal molecule or ion increases, and makes sintering activating energy reduce, and diffusion coefficient improves, and can carry out low temperature and quickly burn
Knot, makes fine powder have little time to grow up and be the most sintered.
Summary of the invention
A kind of method that it is an object of the invention to provide sintering cemented carbide molding mill guide wheel based on reduction and carbonization,
Being prepared WC powder, Co powder and grain inhibitor by the microwave sintering process used, surplus is carbonized ceramic powder system
Become the mill guide wheel structure of high rigidity, embody the structural fragility of carbonized ceramic, product when improving the duty of mill guide wheel
Precision.
For solving above-mentioned technical problem, the present invention is achieved by the following technical solutions:
The present invention is a kind of method of sintering cemented carbide molding mill guide wheel based on reduction and carbonization, including walking as follows
Rapid:
Step one, the WC powder of dispensing: 60%-75%, 6%-7.5%Co powder and the suppression of 0.6%-0.75% crystal grain
Agent, surplus is carbonized ceramic powder；
The preparation of A ultra-fine WC powder: by C powder and WO3Powder is straight in being placed in the rotary furnace of nitrogen atmosphere in the ratio of atomic ratio 1:1
Continue reduction and carbonization in succession and prepare WC powder, reductase 12 4h-50h under hydrogen shield, the temperature stabilization of rotary furnace 1500 DEG C-
2000 DEG C, synthesize the WC powder body that grain size is 7.0-7.5 circle；
The preparation of B Co powder: Co powder is placed in ball mill, ball milling 30h-50h under hydrogen shield, form 0.7-0.9 μm
Co powder；
C grain inhibitor: include the Gr of VC and 25%-40% of 60%-75%5C3；
Step 2, wet grinding: dispensing step one prepared joins in tank, with liquid ethanol as ball-milling medium, A and B
Ratio of grinding media to material be 10:1, in mechanical milling process add forming agent, the rotating speed of ball mill is at 90-100r/min；
Step 3, sieves and is dried: sieved by the powder of step 2 milled, places in vacuum drying oven and is dried,
Then compressing on tablet machine；
Step 4, microwave sintering: microwave frequency is 2400-2600MHz, power at 0-1kW continuously adjustabe, at microwave source and
Cavity indirectly certain to bonder, in order to measure incidence and reflection power, in order to judge resonance and the coupling condition of system, burning
Knot cavity uses one-mode cavity, and temperature controls to use optical fiber thermometer to be connected with control system, the wherein vacuum of one-mode cavity
At 0.003-0.005Pa.
The method have the advantages that
1, the microwave sintering process that the present invention uses is prepared mill guide wheel, and material internal thermal stress can be reduced to
Little degree, secondly under microwave electromagnetic can act on, the kinetic energy of material internal molecule or ion increases, and makes sintering activating energy reduce,
Diffusion coefficient improves, and can carry out low temperature Fast Sintering, makes fine powder have little time to grow up and be the most sintered, has compact structure
Height, structural rigidity is good.
2, the microwave sintering process that the present invention uses is prepared WC powder, Co powder and grain inhibitor, and surplus is carbon
Change ceramic powders and make the mill guide wheel structure of high rigidity, embody the structural fragility of carbonized ceramic, there is plasticity low, the most variable
Shape, the precision of product when improving the duty of mill guide wheel.
3, the present invention uses reduction and carbonization that WC powder, Co powder and grain inhibitor and carbonized ceramic powder are carried out powder
The preparation at end, when improving sinter molding, crystal grain-growth is good, improves the compound of structure microcosmic.
Certainly, the arbitrary product implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of protection of the invention.
Embodiment one
A kind of method of sintering cemented carbide molding mill guide wheel based on reduction and carbonization, such as following steps:
Step one, dispensing: WC powder, 6%Co powder and 0.6% grain inhibitor of 60%, surplus is carbonized ceramic powder
End；
The preparation of A ultra-fine WC powder: by C powder and WO3Powder is straight in being placed in the rotary furnace of nitrogen atmosphere in the ratio of atomic ratio 1:1
Continuing reduction and carbonization in succession and prepare WC powder, reductase 12 4h-50h under hydrogen shield, the temperature stabilization of rotary furnace, at 1500 DEG C, closes
The WC powder body having become grain size to be 7.0-7.5 circle；
The preparation of B Co powder: Co powder is placed in ball mill, ball milling 30h-50h under hydrogen shield, form 0.7-0.9 μm
Co powder；
C grain inhibitor: include the VC of the 60% and Gr of 40%5C3；
Step 2, wet grinding: dispensing step one prepared joins in tank, with liquid ethanol as ball-milling medium, A and B
Ratio of grinding media to material be 10:1, in mechanical milling process add forming agent, the rotating speed of ball mill is at 90-100r/min；
Step 3, sieves and is dried: sieved by the powder of step 2 milled, places in vacuum drying oven and is dried,
Then compressing on tablet machine；
Step 4, microwave sintering: microwave frequency is 2400-2600MHz, power at 0-1kW continuously adjustabe, at microwave source and
Cavity indirectly certain to bonder, in order to measure incidence and reflection power, in order to judge resonance and the coupling condition of system, burning
Knot cavity uses one-mode cavity, and temperature controls to use optical fiber thermometer to be connected with control system, the wherein vacuum of one-mode cavity
At 0.003Pa.
Along with the increase of sintering temperature, WC-Co-pottery fine grained cemented carbide (10min) 1120 under certain temperature retention time
DEG C time sample there is no densification, along with sintering temperature improve, the densification of sample increases sharply, and reaches during to 1300 DEG C
The relative density of 99.1%, the most then there is no change.
Embodiment two
A kind of method of sintering cemented carbide molding mill guide wheel based on reduction and carbonization, following steps:
Step one, dispensing: WC powder, 7.5%Co powder and 0.75% grain inhibitor of 75%, surplus is carbonized ceramic
Powder；
The preparation of A ultra-fine WC powder: by C powder and WO3Powder is straight in being placed in the rotary furnace of nitrogen atmosphere in the ratio of atomic ratio 1:1
Continuing reduction and carbonization in succession and prepare WC powder, reductase 12 4h-50h under hydrogen shield, the temperature stabilization of rotary furnace, at 2000 DEG C, closes
The WC powder body having become grain size to be 7.0-7.5 circle；
The preparation of B Co powder: Co powder is placed in ball mill, ball milling 30h-50h under hydrogen shield, form 0.7-0.9 μm
Co powder；
C grain inhibitor: include the VC of the 75% and Gr of 25%5C3；
Step 2, wet grinding: dispensing step one prepared joins in tank, with liquid ethanol as ball-milling medium, A and B
Ratio of grinding media to material be 10:1, in mechanical milling process add forming agent, the rotating speed of ball mill is at 90-100r/min；
Step 3, sieves and is dried: sieved by the powder of step 2 milled, places in vacuum drying oven and is dried,
Then compressing on tablet machine；
Step 4, microwave sintering: microwave frequency is 2400-2600MHz, power at 0-1kW continuously adjustabe, at microwave source and
Cavity indirectly certain to bonder, in order to measure incidence and reflection power, in order to judge resonance and the coupling condition of system, burning
Knot cavity uses one-mode cavity, and temperature controls to use optical fiber thermometer to be connected with control system, the wherein vacuum of one-mode cavity
At 0.005Pa.
Along with the increase of sintering temperature, WC-Co-pottery fine grained cemented carbide (10min) 1100 under certain temperature retention time
DEG C time sample there is no densification, along with sintering temperature improve, the densification of sample increases sharply, and reaches during to 1360 DEG C
The relative density of 99.8%, the most then there is no change.
Embodiment three
A kind of method of sintering cemented carbide molding mill guide wheel based on reduction and carbonization, following steps:
Step one, dispensing: WC powder, 7.5%Co powder and 0.6% grain inhibitor of 75%, surplus is carbonized ceramic
Powder；
The preparation of A ultra-fine WC powder: by C powder and WO3Powder is straight in being placed in the rotary furnace of nitrogen atmosphere in the ratio of atomic ratio 1:1
Continuing reduction and carbonization in succession and prepare WC powder, reductase 12 4h-50h under hydrogen shield, the temperature stabilization of rotary furnace, at 2000 DEG C, closes
The WC powder body having become grain size to be 7.0-7.5 circle；
The preparation of B Co powder: Co powder is placed in ball mill, ball milling 30h-50h under hydrogen shield, form 0.7-0.9 μm
Co powder；
C grain inhibitor: include the VC of the 60% and Gr of 40%5C3；
Step 2, wet grinding: dispensing step one prepared joins in tank, with liquid ethanol as ball-milling medium, A and B
Ratio of grinding media to material be 10:1, in mechanical milling process add forming agent, the rotating speed of ball mill is at 90-100r/min；
Step 3, sieves and is dried: sieved by the powder of step 2 milled, places in vacuum drying oven and is dried,
Then compressing on tablet machine；
Step 4, microwave sintering: microwave frequency is 2400-2600MHz, power at 0-1kW continuously adjustabe, at microwave source and
Cavity indirectly certain to bonder, in order to measure incidence and reflection power, in order to judge resonance and the coupling condition of system, burning
Knot cavity uses one-mode cavity, and temperature controls to use optical fiber thermometer to be connected with control system, the wherein vacuum of one-mode cavity
At 0.003Pa.
Along with the increase of sintering temperature, WC-Co-pottery fine grained cemented carbide (10min) 1190 under certain temperature retention time
DEG C time sample there is no densification, along with sintering temperature improve, the densification of sample increases sharply, and reaches during to 1400 DEG C
The relative density of 99.3%, the most then there is no change.
In the description of this specification, the description of reference term " embodiment ", " example ", " concrete example " etc. means
Specific features, structure, material or feature in conjunction with this embodiment or example description is contained at least one enforcement of the present invention
In example or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.
And, the specific features of description, structure, material or feature can be to close in any one or more embodiments or example
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.Preferred embodiment is the most detailed
Describe all of details, be also not intended to the detailed description of the invention that this invention is only described.Obviously, according to the content of this specification,
Can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is to preferably explain the present invention
Principle and actual application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and four corner thereof and equivalent.
Claims (1)
1. the method for a sintering cemented carbide molding mill guide wheel based on reduction and carbonization, it is characterised in that include walking as follows
Rapid:
Step one, the WC powder of dispensing: 60%-75%, 6%-7.5%Co powder and 0.6%-0.75% grain inhibitor, remaining
Amount is carbonized ceramic powder；
The preparation of A ultra-fine WC powder: by C powder and WO3Powder directly connects in being placed in the rotary furnace of nitrogen atmosphere in the ratio of atomic ratio 1:1
Continuous reduction and carbonization prepares WC powder, reductase 12 4h-50h under hydrogen shield, the temperature stabilization of rotary furnace at 1500 DEG C-2000 DEG C,
Synthesize the WC powder body that grain size is 7.0-7.5 circle；
The preparation of B Co powder: Co powder is placed in ball mill, ball milling 30h-50h under hydrogen shield, form the Co of 0.7-0.9 μm
Powder；
C grain inhibitor: include the Gr of VC and 25%-40% of 60%-75%5C3；
Step 2, wet grinding: dispensing step one prepared joins in tank, with liquid ethanol as ball-milling medium, the ball of A and B
Material ratio is 10:1, adds forming agent in mechanical milling process, and the rotating speed of ball mill is at 90-100r/min；
Step 3, sieves and is dried: sieved by the powder of step 2 milled, places in vacuum drying oven and is dried, then
On tablet machine compressing；
Step 4, microwave sintering: microwave frequency is 2400-2600MHz, power is at 0-1kW continuously adjustabe, at microwave source and cavity
Indirectly certain to bonder, in order to measure incidence and reflection power, in order to judge resonance and the coupling condition of system, sintering chamber
Body uses one-mode cavity, and temperature controls to use optical fiber thermometer to be connected with control system, and wherein the vacuum of one-mode cavity exists
0.003-0.005Pa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701810.9A CN106312075A (en) | 2016-08-22 | 2016-08-22 | Method for sinter molding of guide wheel based on reduced and carbonized hard alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701810.9A CN106312075A (en) | 2016-08-22 | 2016-08-22 | Method for sinter molding of guide wheel based on reduced and carbonized hard alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108085557A (en) * | 2017-12-26 | 2018-05-29 | 舟山纳思达材料科技开发有限公司 | Carbon nanotubes enhances the manufacturing method and equipment of tungsten-cobalt carbide-vanadium carbide hard alloy |
| CN110029261A (en) * | 2019-05-10 | 2019-07-19 | 重庆文理学院 | A kind of preparation method of Micro-Nano Hardmetal cutter material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001329331A (en) * | 2000-05-19 | 2001-11-27 | Hitachi Tool Engineering Ltd | High hardness and high toughness cemented carbide and its production method |
| CN103635599A (en) * | 2011-06-27 | 2014-03-12 | 京瓷株式会社 | Hard alloy and cutting tool |
| CN103627942A (en) * | 2013-03-20 | 2014-03-12 | 厦门钨业股份有限公司 | Preparation method for high-performance WC-Co nanocrystal cemented carbide |
| CN105264103A (en) * | 2013-05-31 | 2016-01-20 | 山特维克知识产权股份有限公司 | New process of manufacturing cemented carbide and a product obtained thereof |
-
2016
- 2016-08-22 CN CN201610701810.9A patent/CN106312075A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001329331A (en) * | 2000-05-19 | 2001-11-27 | Hitachi Tool Engineering Ltd | High hardness and high toughness cemented carbide and its production method |
| CN103635599A (en) * | 2011-06-27 | 2014-03-12 | 京瓷株式会社 | Hard alloy and cutting tool |
| CN103627942A (en) * | 2013-03-20 | 2014-03-12 | 厦门钨业股份有限公司 | Preparation method for high-performance WC-Co nanocrystal cemented carbide |
| CN105264103A (en) * | 2013-05-31 | 2016-01-20 | 山特维克知识产权股份有限公司 | New process of manufacturing cemented carbide and a product obtained thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108085557A (en) * | 2017-12-26 | 2018-05-29 | 舟山纳思达材料科技开发有限公司 | Carbon nanotubes enhances the manufacturing method and equipment of tungsten-cobalt carbide-vanadium carbide hard alloy |
| CN108085557B (en) * | 2017-12-26 | 2019-09-17 | 舟山纳思达材料科技开发有限公司 | Carbon nanotubes enhances tungsten-cobalt carbide-vanadium carbide hard alloy manufacturing method and equipment |
| CN110029261A (en) * | 2019-05-10 | 2019-07-19 | 重庆文理学院 | A kind of preparation method of Micro-Nano Hardmetal cutter material |
| CN110029261B (en) * | 2019-05-10 | 2020-07-14 | 重庆文理学院 | Preparation method of micro-nano hard alloy cutter material |
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Application publication date: 20170111 |