CN110371980A - A kind of superfine tungsten carbide automatic production line - Google Patents
A kind of superfine tungsten carbide automatic production line Download PDFInfo
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- CN110371980A CN110371980A CN201910838922.2A CN201910838922A CN110371980A CN 110371980 A CN110371980 A CN 110371980A CN 201910838922 A CN201910838922 A CN 201910838922A CN 110371980 A CN110371980 A CN 110371980A
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- boat
- furnace
- ball mill
- tungsten carbide
- tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/949—Tungsten or molybdenum carbides
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of superfine tungsten carbide automatic production lines, including set gradually calcining furnace, automatically push away four pipe furnace of boat, with carbon device, the feed inlet of ball mill and tube-type atmosphere furnace, calcining furnace is connected with raw material feed hopper, and the discharge port of the calcining furnace is connected with presoma feed bin；Charging amount controller and calcination temperature controller are provided in calcining furnace；Automatically pushing away four pipe furnace of boat includes Zhuan Zhou mechanism, system for compacting, lamination, closing mechanism, feeding mechanism, burner hearth mechanism, discharging mechanism and conveying mechanism；With being provided on carbon device with carbon mouth, should be connected with carbon device one end with the output end for pushing away four pipe furnace of boat automatically, the other end is connected with ball mill, and ball mill is connected with tube-type atmosphere furnace, and warm-up controller and carburizing temperature controller are provided in tube-type atmosphere furnace.Present device operational sequence is simple and reliable, can prepare that scattered, crystallization is complete, superfine tungsten carbide powder with high purity, it is easy to accomplish large-scale industrial production.
Description
Technical field
The invention belongs to technical field of composite preparation, more particularly, to a kind of superfine tungsten carbide automated production
Line.
Background technique
Currently, being therefore widely used in intermetallic composite coating, electronics since ultra-fine cemented carbide has excellent mechanical property
The fields such as industry, medicine, for example, be used as printed circuit board microbit, milling cutter, whole aperture knife tool, accurate tool and mould,
Difficult-to-machine material cutter etc..
Tungsten-carbide powder is the indispensable raw material for preparing tungsten carbide base carbide alloy, the ruler of the tungsten carbide crystal grain in hard alloy
Very little and its distribution has a major impact alloy property, when tungsten carbide grain size is reduced to micron order, nanoscale in hard alloy
Afterwards, the hardness, bending strength of material are significantly increased, and toughness also has clear improvement, referred to as " double height " hard alloy.Preparation is thin
Crystal grain, good dispersion, even particle size distribution, the high tungsten-carbide powder of chemical combination carbon content are the key that prepare ultra-fine cemented carbide skill
Art.The method for preparing superfine tungsten carbide powder at present mainly has, conventional oxidation tungsten hydrogen reduction-carbonizatin method, is reduced directly carbonizatin method,
Mechanical alloying method, plasma method.
The preparation method of common superfine tungsten carbide powder, will lead to its aggregate and largely exists, crystallizes in existing market
Imperfect, bad dispersibility, granularity is uneven, and impurity content is high, although eliminating aggregate largely by processing, causes to be sintered
The nucleus of abnormal grain growth not can be reduced in the process, while by pretreatment, and increase the activity of tungsten-carbide powder, into
And lead to the abnormal growth of crystal grain in sintering process.And other preparation methods then have that at high cost, process is complicated, is difficult to advise
The shortcomings that modelling.
Summary of the invention
It can prepare that scattered, crystallization is complete, the ultra-fine carbonization of purity is high the problem to be solved in the present invention is to provide one kind
The automatic production line of tungsten powder.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of superfine tungsten carbide automated production
Line, including set gradually calcining furnace, automatically push away four pipe furnace of boat, with carbon device, ball mill and tube-type atmosphere furnace,
The feed inlet of the calcining furnace is connected with raw material feed hopper, and the discharge port of the calcining furnace is connected with presoma feed bin
It is logical；Charging amount controller and calcination temperature controller are provided in the calcining furnace；
Automatically four pipe furnace of boat that pushes away includes presoma material being packed into the Zhuan Zhou mechanism of boat, by the presoma in boat
Material flatten and the system for compacting of jack, the boat after pressing is overlapped into upper and lower boat group lamination, by boat
Be covered on upper and lower boat group closing mechanism, will cover conjunction the group of boat up and down be sent into burner hearth mechanism feeding mechanism, will be upper
Burner hearth mechanism that lower boat group is processed, the discharging mechanism that the good group of boat up and down of working process is sent out and by boat
Or boat group is moved to the defeated of system for compacting, lamination, closing mechanism, feeding mechanism, burner hearth mechanism and discharging mechanism up and down
Send mechanism；
It is described with being provided on carbon device with carbon mouth, should be connected with carbon device one end with the output end for pushing away four pipe furnace of boat automatically
Logical, the other end is connected with ball mill, and the ball mill is connected with tube-type atmosphere furnace, and liter is provided in the tube-type atmosphere furnace
Temperature controller and carburizing temperature controller.
The carbon device of matching is batch mixer.
The ball mill is planetary ball mill.
The batch mixer includes the tank body rotated horizontally and the vertical mixing blade of rotation.
Due to the adoption of the above technical scheme, present device operational sequence is simple and reliable, can prepare scattered, crystallization
Completely, superfine tungsten carbide powder with high purity, it is easy to accomplish large-scale industrial production.
Production line of the invention avoids the entrance of impurity during the preparation process all in closed state, to be easy to control
Final conversion ratio improves stability and controllability, time-consuming short, high-efficient, realizes the full-automation of production line.
In addition, the present invention directly carries out improving the uniformity that high-volume mixing matches carbon with carbon using batch mixer.
Detailed description of the invention
It is specifically described the present invention below with reference to attached drawing and in conjunction with example, advantages of the present invention and implementation will
It is more obvious, wherein content only for the purpose of explanation of the present invention shown in attached drawing, without constitute to it is of the invention in all senses
On limitation, in the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention
In figure:
1, calcining furnace 2, push away four pipe furnace 3 of boat automatically, with carbon device
4, ball mill 5, tube-type atmosphere furnace 6, raw material feed hopper
7, presoma feed bin 8, charging amount controller 9, calcination temperature controller
10, Zhuan Zhou mechanism 11, system for compacting 12, lamination
13, closing mechanism 14, feeding mechanism 15, burner hearth mechanism
16, discharging mechanism 17, conveying mechanism 18, warm-up controller
19, carburizing temperature controller
Specific embodiment
The present invention is further discussed below below with reference to embodiment and its attached drawing:
A kind of superfine tungsten carbide automatic production line, including set gradually calcining furnace 1, automatically push away four pipe furnace 2 of boat, match
The feed inlet of carbon device 3, ball mill 4 and tube-type atmosphere furnace 5, the calcining furnace 1 is connected with raw material feed hopper 6, the calcining furnace 1
Discharge port be connected with presoma feed bin 7；Charging amount controller 8 and calcination temperature controller are provided in the calcining furnace 1
9；Automatically four pipe furnace 2 of boat that pushes away includes presoma material being packed into the Zhuan Zhou mechanism 10 of boat, by the presoma object in boat
Material flatten and the system for compacting 11 of jack, lamination 12, Jiang Zhou that the boat after pressing is overlapped into upper and lower boat group
Ware lid is covered on the closing mechanism 13 of upper and lower boat group, the group of boat up and down for having covered conjunction is sent into the feeding mechanism of burner hearth mechanism
14, the burner hearth mechanism 15 being processed upper and lower boat group, the discharging machine for sending out the good group of boat up and down of working process
Structure 16 and boat or upper and lower boat group are moved to system for compacting 11, lamination 12, closing mechanism 13, feeding mechanism 14, furnace
The conveying mechanism 17 of thorax mechanism 15 and discharging mechanism 16；It is described with being provided on carbon device 3 with carbon mouth, should with carbon device one end with
Automatically the output end for pushing away four pipe furnace 2 of boat is connected, and the other end is connected with ball mill 4, the ball mill 4 and tube-type atmosphere furnace 5
It is connected, is provided with warm-up controller 18 and carburizing temperature controller 19 in the tube-type atmosphere furnace 5；It is described to be with carbon device 3
Batch mixer；The ball mill 4 is planetary ball mill；The batch mixer includes the tank body rotated horizontally and the vertical mixing of rotation
Blade.
The course of work: (1) using ammonium paratungstate as raw material, calcining furnace 1 is delivered to by raw material feed hopper 6, passes through calcining furnace 1
Calcining generates tungsten oxide presoma, and when calcining, inlet amount 50-250kg/h, calcination temperature is at 500-700 DEG C；It (2) will be in (1)
The tungsten oxide presoma of acquisition carries out hydrogen reducing by pushing away four pipe furnace 2 of boat automatically after storage to presoma feed bin 7, obtains tungsten
Powder；The technological parameter of hydrogen reducing are as follows: five band temperature are 620 ± 20 DEG C, 680 ± 20 DEG C, 740 ± 20 DEG C, 800 ± 20 DEG C, 860
± 20 DEG C, hydrogen flowing quantity 34-40m3/ h, pushing away the boat time is 15-20 minutes/boat, and boat charge is 0.6-0.9 kilograms/boat；(3)
Tungsten powder made from (2) is carried out by batch mixer with carbon, carbon black is the source C, mixed carbon comtent 6.13wt%, and uses planetary type ball-milling
Machine dry grinding, 1~4h of Ball-milling Time, ratio of grinding media to material are 10:1~20:1；Material after ball milling is placed in tube-type atmosphere furnace, in hydrogen gas
It is carbonized under atmosphere, heating rate is 5 DEG C/min, and carburizing temperature is 1280~1420 DEG C, keeps the temperature 1~3h, prepares ultrafine tungsten carbide
Powder, superfine tungsten carbide partial size are 0.05-0.15 μm.
The embodiments of the present invention have been described in detail above, but content is only the preferred embodiment of the present invention,
It should not be considered as limiting the scope of the invention.All changes and improvements made in accordance with the scope of the present invention, should all
It still belongs within this patent covering scope.
Claims (4)
1. a kind of superfine tungsten carbide automatic production line, it is characterised in that: including set gradually calcining furnace, automatically push away boat four
Pipe furnace matches carbon device, ball mill and tube-type atmosphere furnace, and the feed inlet of the calcining furnace is connected with raw material feed hopper, the calcining
The discharge port of furnace is connected with presoma feed bin；Charging amount controller and calcination temperature controller are provided in the calcining furnace；
Automatically four pipe furnace of boat that pushes away includes carrying out by the Zhuan Zhou mechanism of presoma material loading boat, by the presoma material in boat
Boat after pressing is overlapped into the lamination of upper and lower boat group, is covered on boat lid by the system for compacting of pressing and jack
The closing mechanism of upper and lower boat group, the group of boat up and down that will have covered conjunction are sent into the feeding mechanism of burner hearth mechanism, by upper and lower boat group
The burner hearth mechanism that is processed, the discharging mechanism that the good group of boat up and down of working process is sent out and by boat or upper and lower boat
Ware group be moved to system for compacting, lamination, closing mechanism, feeding mechanism, burner hearth mechanism and discharging mechanism conveying mechanism；Institute
It states with being provided on carbon device with carbon mouth, should be connected with carbon device one end with the output end for pushing away four pipe furnace of boat automatically, the other end
It is connected with ball mill, the ball mill is connected with tube-type atmosphere furnace, is provided with warm-up controller in the tube-type atmosphere furnace
With carburizing temperature controller.
2. superfine tungsten carbide automatic production line according to claim 1, it is characterised in that: the carbon device of matching is mixed
Material machine.
3. superfine tungsten carbide automatic production line according to claim 1, it is characterised in that: the ball mill is planet
Formula ball mill.
4. superfine tungsten carbide automatic production line according to claim 2, it is characterised in that: the batch mixer includes water
The tank body of flat rotation and the vertical mixing blade of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838922.2A CN110371980A (en) | 2019-09-05 | 2019-09-05 | A kind of superfine tungsten carbide automatic production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838922.2A CN110371980A (en) | 2019-09-05 | 2019-09-05 | A kind of superfine tungsten carbide automatic production line |
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| Publication Number | Publication Date |
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| CN110371980A true CN110371980A (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910838922.2A Pending CN110371980A (en) | 2019-09-05 | 2019-09-05 | A kind of superfine tungsten carbide automatic production line |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850901A (en) * | 2019-03-28 | 2019-06-07 | 湖南信之材料工程技术有限责任公司 | It is a kind of for producing the full-automatic push boat type carbide furnace of superfine tungsten carbide |
| CN110127703A (en) * | 2019-06-20 | 2019-08-16 | 蓬莱市超硬复合材料有限公司 | Preparation method that is scattered, crystallizing complete, purity is high superfine tungsten carbide powder |
-
2019
- 2019-09-05 CN CN201910838922.2A patent/CN110371980A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850901A (en) * | 2019-03-28 | 2019-06-07 | 湖南信之材料工程技术有限责任公司 | It is a kind of for producing the full-automatic push boat type carbide furnace of superfine tungsten carbide |
| CN110127703A (en) * | 2019-06-20 | 2019-08-16 | 蓬莱市超硬复合材料有限公司 | Preparation method that is scattered, crystallizing complete, purity is high superfine tungsten carbide powder |
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Application publication date: 20191025 |