CN105618770B - Mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate - Google Patents
Mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate Download PDFInfo
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- CN105618770B CN105618770B CN201610043104.XA CN201610043104A CN105618770B CN 105618770 B CN105618770 B CN 105618770B CN 201610043104 A CN201610043104 A CN 201610043104A CN 105618770 B CN105618770 B CN 105618770B
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- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
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- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0896—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid particle transport, separation: process and apparatus
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate, comprising: spiral dust feeder (14), tracheae 1(1), air valve 1(2), air gauge (3), tracheae 2(4), abrasive can (5), sealing ring 1(6), abrasive material cover (7), abrasive can charging door (8), hard abrasive material (9), mixed tube cell 1(10), mixed tube cell 2(11), abrasive can flour extraction pipe (12), tee pipe coupling (13), spiral send device (14)；The spiral dust feeder (14) includes: motor wiring port (15), sealing bucket (16), spiral conveying tube (17), spiral (18), shaft coupling (19), motor (20), sealing bung (21), sealing ring 2(22).Since hard abrasive material uninterrupted is only by the control of spiral dust feeder (14), the revolving speed of control motor (20) can realize the accurate control of hard abrasive material flow, adjusting air valve 1(2) aperture can control the jet velocity of Dual-Phrase Distribution of Gas olid, to realize the accurate control of hard abrasive content in magnetic abrasive and the accurate control of injection pressure.The present invention provides reliable apparatus and method of controlling operation thereof for the accurate control of hard abrasive content in realization magnetic abrasive.
Description
Technical field
The present invention provides a kind of mixed powder aerosolization magnetic abrasive preparation and send meal mixer with spiral automatic and accurate, belongs to magnetic grain and grinds
Grind preparation technical field.
Background technique
Magnetic abrasive finishing Finishing is to add magnetic field application in a kind of new finishing that conventional milling techniques are developed
Work technique；It is a kind of very excellent polishing processing method；It is to improve the effectively technological means of product surface quality.This method exists
Technically have many advantages, such as: flexibility, adaptivity, self-sharpening, controllability, temperature rise it is small and need not carry out tool wear compensation,
The features such as without correction of the flank shape；It also avoids simultaneously and the complexity of grinding tool head construction is required, can be realized grinding for 3 D complex curved surface
It grinds skin processing and solves automation issues；And the manufacturing cost of part can be reduced, thus at home and abroad cause and widely grind
Study carefully.In the prior art there are many kinds of the preparation methods of magnetic abrasive, they can generally be divided into three classes: mechanical mixing is answered
Condensation material method, reactive casting method.
Mechanical mixing is that ferromagnetic powder, abrasive powders and lapping liquid etc. is uniformly mixed at normal temperature by a certain percentage
It closes, directly carries out the method for attrition process.The ferromagnetic powder and abrasive powders such as Al2O3, SiC of common certain particle size,
Cr2O3, TiC etc. after mixing, add adhesive such as oleic acid, polyethylene glycol, silica gel etc. and are made.This kind of method can be made
At a variety of magnetic abrasives, preparation process is simple, at low cost, but during grinding, abrasive grain is easier with Magnaglo
Separation is dispersed, and grinding efficiency is low, limits application range.
From the point of view of materialogy, magnetic abrasive is a kind of composite powder, i.e. iron-based grains enhanced type composite material
Powder.It is two or more material heterogeneous material made of certain combination process, and performance is specific
Aspect is substantially better than raw material.With the development of composite material, the technology of preparing of magnetic abrasive has also obtained corresponding development,
Preparation process mainly has sintering process, mull technique, composite deposite method etc. there are many kind.
Sintering process is that current magnetic abrasive prepares most common method.In Japan, this method has been applied successfully to work
During industry metaplasia produces.According to the difference of specific sintering condition, it is divided into normal pressure-sintered, hot pressed sintering, laser sintered, microwave sintering again
Deng.Due to the processing performance and service life of magnetic abrasive, it is largely certainly taken at the bond strength of abrasive grain phase with ferromagnetic phase.
The magnetic abrasive of sintering process preparation is being mechanically pulverized, is having substantial portion of abrasive material phase to separate with ferromagnetic phase in screening process, causing
Ferromagnetic phase combines strength reduction, durability decline with abrasive grain.
Mull technique is divided into inorganic bond and organic adhesive according to the difference of selected binder, is by certain proportion, mixing
Uniform ferromagnetic powder and abrasive powders are bonded together with binder, are then solidified, then be mechanically pulverized, screen, are made not
The magnetic abrasive powder of one-size.The magnetic abrasive of mull technique preparation is not needed due to not needing preparatory briquet containing lazy
The equipment such as electric furnace, the laser machine of property gas, therefore this method simple process, easy to accomplish, cost is relatively low.But tissue looseness, knot
It is poor to close, and density is low, and thermal stability is poor, and abrasive grain is mutually easy to fall off, and the service life is shorter.And when temperature is higher, the magnetic abrasive of bonding
Make the surface of processing at furvous, original finished surface is easy contaminated damage.
Certain abrasive grain is equably mingled with metal by the method for composite deposite method composite plating or composite electroless-plating
In coating, and the special coating formed is composite deposite.Compound plating technology is applied in the technology of preparing of magnetic abrasive,
By the development of many years, oneself is successfully applied in many sciemtifec and technical spheres composite deposite method, but production cost is higher, batch production
It is difficult to realize, plating solution is dealt with improperly and also will cause environmental pollution.
Its principle of reactive casting method is under certain condition, to pass through the chemistry between element and element or element and compound
Reaction, the one or more of high-intensitive ceramic enhancement phases of fabricated in situ, are obtaining the alloy containing ceramic enhancement phase in human body
Afterwards, it reheats and melts and be blow molded into powder under high pressure.Reactive casting method presently, there are the problem of be that ceramics are hard in magnetic abrasive
The content of matter abrasive material is low and hard abrasive grain therein is also difficult to control.
Plasma spraying method is after being pre-mixed iron-based powder and hard abrasive grain by a certain percentage uniformly, to place
In the raw material powder feed room of plasma spraying equipment.In the vacuum chamber of plasma spray injection device, applied between two electrodes
Increase frequency discharge voltage, plasma jet flame is generated by plasma generator.The raw material powder mixed is continuous simultaneously
Ground is injected in plasma torch, and plasma torch temperature can reach 5000 ~ 10000 DEG C of high temperature, constantly by raw material powder
It is fused into microlayer model, then cools down, be frozen into Magnetic Spherical abrasive grain.Although this kind of method solves iron-based phase and abrasive material phase
The problem of poor compatibility, but the magnetic abrasive of this method preparation is due to the high temperature action by plasma torch, abrasive grain phase it is sharp
Cutting edge is passivated, its grinding efficiency is caused to significantly reduce, and grainding capacity is even less than the magnetic of other straightforward procedures preparation
Property abrasive material.
Atomization is to use atomization solidifying equipment fastly, in indifferent gas fastly solidifying magnetic abrasive the preparation method (being proposed by the present inventor)
Under the protection of body, the molten metal liquid stream penetrated in downflow processes is blown with the high pressure draught containing hard abrasive material, metal liquid stream is by mist
After change, the fine droplet containing hard abrasive grain is formed, is solidified through being quickly cooled down, script compatibility and wetability is very poor
Hard abrasive material phase and metal phase are forcibly combined together, to prepare high performance magnetic abrasive.This method breaches
The limitation of poor compatibility between ferromagnetic metal and hard abrasive material, by ferromagnetic metal and the enforceable combination of hard ceramic abrasive material
Together, it prepares with magnetic permeability is high, grainding capacity is strong, granularity is controllable, structural strength is high, structural form is in the spherical, service life
Long high performance magnetic abrasive material.This method promises to be most having for low-cost, high-volume production high performance magnetic abrasive material at present
The method of future.
Hard abrasive material is mixed into high pressure draught in order to realize, Zhao Yu has just invented " pneumatic atomizing rapid condensation magnetic abrasive material preparation
Send meal mixer and send mixed powder control method " (ZL201110156047.3), and applied in practice, but the invention exists
Flow of the hard abrasive material in high pressure draught is difficult to the problem of accurately controlling, and the content of hard abrasive material in magnetic abrasive is caused to be difficult to
Accurate control, so that the magnetic abrasive performance of preparation is unstable.
Summary of the invention
In view of the problems of the existing technology, the present invention " sent with spiral automatic and accurate by mixed powder aerosolization magnetic abrasive preparation
The technical solution of meal mixer " is as follows:
Mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate, it is characterised in that: including spiral powder feeding
Device (14), tracheae 1(1), air valve 1(2), air gauge (3), tracheae 2(4), abrasive can (5), sealing ring 1(6), abrasive material cover
(7), abrasive can charging door (8), hard abrasive material (9), mixed tube cell 1(10), mixed tube cell 2(11), abrasive can flour extraction pipe (12), threeway
Pipe fitting (13), spiral send device (14)；The spiral dust feeder (14) includes: motor wiring port (15), sealing bucket
(16), spiral conveying tube (17), spiral (18), shaft coupling (19), motor (20), sealing bung (21), sealing ring 2(22).
The spiral dust feeder (14) of meal mixer is sent in the mixed powder aerosolization magnetic abrasive preparation with spiral automatic and accurate,
It is characterized by: spiral conveying tube (17) is connect by welding manner one end with sealing bucket (16), the other end and mixed tube cell 2(11)
Connection, top are connect with abrasive can flour extraction pipe (12), and the right end of sealing bucket (16) is equipped with sealing bung (21), are sealed bucket (16)
It is connected through a screw thread with sealing bung (21), sealing between bucket (16) and sealing bung (21) has sealing ring 2(22), in sealing bucket
(16) left end inner wall position is provided with the seam allowance of installation motor (20), and motor (20) is mounted on sealing bucket (16) by screw
Left end inner wall on, the axis of motor (20) is stretched out from seam allowance；Spiral (18) is placed in spiral conveying tube (17) inside, spiral
(18) it is connected with motor (20) by shaft coupling (19), motor (20) drives spiral (18) rotation.
The mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate, it is characterised in that: abrasive can
(5) upper part has abrasive can charging door (8), and hard abrasive material (9) passes through abrasive can charging door (8) injection abrasive can (5)；Abrasive can
The top of charging door (8) is equipped with abrasive material cover (7), and the two is connected through a screw thread, and is equipped with sealing ring 1(6 therebetween)；
Abrasive can (5) lower part is connect with welding manner with abrasive can flour extraction pipe (12)；Tracheae 2(4) it is right with welding manner and abrasive can (5)
Top connection；After inert gas is entered by tracheae 1, transtracheal 2(4), then be divided into two-way by tee pipe coupling (13), all the way into
Enter the epicoele of abrasive can (5), another way enters mixed tube cell 2(11).
The mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate, it is characterised in that: abrasive can
(5) inside cavity two-way pressure is equal, and hard abrasive material (9) enters spiral by abrasive can flour extraction pipe (12) under gravity
Powder feed rate and motor (20) of meal mixer are sent in delivery pipe (17), mixed powder aerosolization magnetic abrasive preparation with spiral automatic and accurate
Revolving speed it is directly proportional, control motor (20) revolving speed can control mixed powder aerosolization magnetic abrasive preparation spiral automatic precision
Really send the powder feed rate of meal mixer.
The mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate, it is characterised in that: mixed tube cell 1
(10) right end is connected with mixed tube cell 2(11), and left end is connected with the low pressure stream nozzle (34) of two-nozzle atomization device (36)；Hard
Abrasive material is exported by spiral (18) rotation and enters mixed tube cell 2(11), in mixed tube cell 2(11 under the action of high pressure gas) interior shape
At Dual-Phrase Distribution of Gas olid；Dual-Phrase Distribution of Gas olid is through overmulling tube cell 1(10) enter two-nozzle atomization device (36) low pressure stream nozzle
(34).
The mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate, send mixed powder control method such as
Under:
Step 1: measuring the hard abrasive material of prescribed volume by volume according to the design capacity of abrasive can (5)；By abrasive material
The abrasive material cover (7) on tank (5) top is opened, and the hard abrasive material measured is poured into using funnel, then screws abrasive material cover
(7)；
Step 2: by air valve 1(2), motor (20), air valve 2(25) be placed in off；
Step 3: adjusting air valve 2(25) arrive maximum opening, adjusting air valve 1(2) aperture while observation air gauge (3)
It shows pressure, according to the technological requirements adjusts pressure to specified value；
Step 4: controlling motor (20) to the traffic requirement of hard abrasive material according to technique and arriving defined rotation speed；
Step 5: first closing motor (20) at the end of device use, turning off air valve 2(25) and air valve 1(2)；
The step three realizes the pressure control of mixed powder air-flow；The step four realizes the flow control of hard abrasive material
System.
Compared with the prior art, the invention has the following advantages:
1. since the cavity pressure up and down of abrasive can (5) is equal, the size of air pressure does not have an impact the flow of hard abrasive material,
For hard abrasive material uninterrupted only by the control of spiral dust feeder (14), hard mill is may be implemented in the revolving speed for controlling motor (20)
The accurate control of stream amount.
2. under the action of mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate, in mixed tube cell 2
(11) and mixed tube cell 1(10) in, hard abrasive material is sufficiently mixed with high pressure gas, formed Dual-Phrase Distribution of Gas olid, set through pneumatic atomizing rapid condensation
Standby low pressure stream nozzle (34) sprays, and the molten metal liquid stream in downflow processes is sprayed to, so that hard abrasive grain be injected
In molten metal liquid stream in downflow processes.
3. adjust mixed powder aerosolization magnetic abrasive preparation with spiral automatic and accurate send the air gauge (3) of meal mixer locating for pipeline
Pressure, so that it may control Dual-Phrase Distribution of Gas olid injection speed.
The present invention mixes the preparation of powder aerosolization magnetic abrasive and send meal mixer with spiral automatic and accurate, hard in magnetic abrasive to realize
The accurate control of matter abrasive content provides equipment.
Detailed description of the invention
Fig. 1 is to mix the preparation of powder aerosolization magnetic abrasive to send meal mixer structural schematic diagram with spiral automatic and accurate；
Fig. 2 is spiral dust feeder structural schematic diagram；
Fig. 3 is that the mixed powder aerosolization magnetic abrasive preparation of the present invention with spiral automatic and accurate send meal mixer to send mixed powder in twin-jet nozzle
Schematic view of the mounting position in gas atomization device.
Label in Fig. 1: 1- tracheae 1,2- air valve 1,3- air gauge, 4- tracheae 2,5- abrasive can, 6- sealing ring 1,7- abrasive material
Cover, 8- abrasive can charging door, 9- hard abrasive material, 10- mix tube cell 1,11- mixes tube cell 2,12- abrasive can flour extraction pipe, 13- threeway
Pipe fitting, 14- spiral send device.
Label in Fig. 2: 15- motor wiring port, 16- seal bucket, 17- spiral conveying tube, 18- spiral, 19- shaft coupling
Device, 20- motor, 21- seal bung, 22- sealing ring 2.
Label in Fig. 3: 23- high-pressure nitrogen bottle 1,24- high-pressure nitrogen bottle 2,25- air valve 2,26- air valve 3,1- tracheae 1,28-
Gas station, 29- tracheae 3,30- mix the preparation of powder aerosolization magnetic abrasive with spiral automatic and accurate send meal mixer, 31- molten metal bath,
32- crucible, 33- molten metal diversion pipe, 34- low pressure stream nozzle, 35- high-pressure jet nozzle, 36- two-nozzle atomization device.
Specific embodiment
Referring to Fig. 1.In Fig. 1 include spiral dust feeder (14), tracheae 1(1), air valve 1(2), air gauge (3), tracheae 2
(4), abrasive can (5), sealing ring 1(6), abrasive material cover (7), abrasive can charging door (8), hard abrasive material (9), mixed tube cell 1(10),
Mixed tube cell 2(11), abrasive can flour extraction pipe (12), tee pipe coupling (13), spiral send device (14)；Abrasive can (5) upper part has mill
Batch can charging door (8), hard abrasive material (9) pass through abrasive can charging door (8) injection abrasive can (5)；Abrasive can charging door (8) it is upper
Portion is equipped with abrasive material cover (7), and the two is connected through a screw thread, and is equipped with sealing ring 1(6 therebetween)；Abrasive can (5) lower part
It is connect with welding manner with abrasive can flour extraction pipe (12)；Tracheae 2(4) it is connect with welding manner with abrasive can (5) upper right quarter；Inertia
After gas is entered by tracheae 1, transtracheal 2(4), then it is divided into two-way by tee pipe coupling (13), all the way into abrasive can (5)
Epicoele, another way enter mixed tube cell 2(11).
Referring to fig. 2.It include: motor wiring port (15), sealing bucket (16), spiral conveying tube (17), spiral in Fig. 2
(18), shaft coupling (19), motor (20), sealing bung (21), sealing ring 2(22)；Spiral conveying tube (17) passes through welding side
Formula one end is connect with sealing bucket (16), and the other end is connect with mixed tube cell 2(11), and top is connect with abrasive can flour extraction pipe (12), close
The right end of envelope bucket (16) is equipped with sealing bung (21), and sealing bucket (16) is connected through a screw thread with sealing bung (21), seals bucket
(16) have sealing ring 2(22 between sealing bung (21)), installation motor is provided at the left end inner wall position of sealing bucket (16)
(20) seam allowance, motor (20) are mounted on the left end inner wall of sealing bucket (16) by screw, and the axis of motor (20) is from only
It is stretched out in mouthful；Spiral (18) is placed in spiral conveying tube (17) inside, and spiral (18) passes through shaft coupling (19) phase with motor (20)
Even, motor (20) drives spiral (18) rotation.
Referring to Fig. 3, cooperate referring to Fig. 1.Include: high-pressure nitrogen bottle 1(23 in Fig. 3), high-pressure nitrogen bottle 2(24), air valve
2(25), air valve 3(26), tracheae 1(1), gas station (28), tracheae 3(29), mixed powder aerosolization magnetic abrasive preparation spiral it is automatic
Accurately send meal mixer (30), molten metal bath (31), crucible (32), molten metal diversion pipe (33), low pressure stream nozzle (34), height
Injection flow nozzle (35), two-nozzle atomization device (36).
Referring to Fig. 1, cooperate referring to fig. 2: abrasive can (5) inside cavity two-way pressure is equal, and hard abrasive material (9) is in gravity
Effect is lower to enter spiral conveying tube (17) by abrasive can flour extraction pipe (12), and it is automatic to mix powder aerosolization magnetic abrasive preparation spiral
Accurately send the powder feed rate of meal mixer directly proportional to the revolving speed of motor (20), the revolving speed of control motor (20) can control
The powder feed rate of meal mixer is sent in mixed powder aerosolization magnetic abrasive preparation with spiral automatic and accurate.
Referring to Fig. 1, cooperation referring to fig. 2, Fig. 3: mixed tube cell 1(10) right end is connected with mixed tube cell 2(11), left end and twin-jet nozzle
The low pressure stream nozzle (34) of atomising device (36) is connected；Hard abrasive material is exported by spiral (18) rotation and enters mixed tube cell 2
(11), in mixed tube cell 2(11 under the action of high pressure gas) in formed Dual-Phrase Distribution of Gas olid；Dual-Phrase Distribution of Gas olid is through overmulling tube cell 1
(10) enter the low pressure stream nozzle (34) of two-nozzle atomization device (36).
Claims (4)
1. mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate, it is characterised in that: filled including spiral powder feeding
Set (14), tracheae 1 (1), air valve 1 (2), air gauge (3), tracheae 2 (4), abrasive can (5), sealing ring 1 (6), abrasive material cover (7),
Abrasive can charging door (8), hard abrasive material (9), mixed tube cell 1 (10), mixed tube cell 2 (11), abrasive can flour extraction pipe (12), T joint
Head (13), spiral dust feeder (14)；The spiral dust feeder (14) includes: motor wiring port (15), sealing bucket
(16), spiral conveying tube (17), spiral (18), shaft coupling (19), motor (20), sealing bung (21), sealing ring 2 (22)；
The spiral conveying tube (17) of spiral dust feeder (14) is connect by welding manner one end with sealing bucket (16), the other end and mixed powder
Pipe 2 (11) connection, top are connect with abrasive can flour extraction pipe (12), and the right end of sealing bucket (16) is equipped with sealing bung (21), close
Envelope bucket (16) is connected through a screw thread with sealing bung (21), and sealing between bucket (16) and sealing bung (21) has sealing ring 2 (22),
It is provided with the seam allowance of installation motor (20) at the left end inner wall position of sealing bucket (16), motor (20) is mounted on close by screw
It seals on the left end inner wall of bucket (16), the axis of motor (20) is stretched out from seam allowance；Spiral (18) is placed in spiral conveying tube (17)
The one end in portion, spiral (18) is connected with motor (20) by shaft coupling (19), and the other end of spiral (18) is free end, electronic
Machine (20) drives spiral (18) rotation；Abrasive can (5) upper part has abrasive can charging door (8), and hard abrasive material (9) passes through abrasive can
Charging door (8) injects abrasive can (5)；The top of abrasive can charging door (8) is equipped with abrasive material cover (7), and the two is connected by screw thread
It connects, sealing ring 1 (6) is installed therebetween；Abrasive can (5) lower part is connect with welding manner with abrasive can flour extraction pipe (12)；
Tracheae 2 (4) is connect with welding manner with abrasive can (5) upper right quarter；After inert gas is entered by tracheae 1, pass through tee pipe coupling
(13) it is divided into two-way, transtracheal 2 (4) enters the epicoele of abrasive can (5) all the way, and another way enters mixed tube cell 2 (11)；Abrasive can
(5) inside cavity two-way pressure is equal, and hard abrasive material (9) enters spiral by abrasive can flour extraction pipe (12) under gravity
Powder feed rate and motor (20) of meal mixer are sent in delivery pipe (17), mixed powder aerosolization magnetic abrasive preparation with spiral automatic and accurate
Revolving speed it is directly proportional, control motor (20) revolving speed can control mixed powder aerosolization magnetic abrasive preparation spiral automatic precision
Really send the powder feed rate of meal mixer.
2. mixed powder aerosolization magnetic abrasive preparation according to claim 1 send meal mixer, feature with spiral automatic and accurate
Be: mixed tube cell 1 (10) right end is connected with mixed tube cell 2 (11), the low pressure stream nozzle of left end and two-nozzle atomization device (36)
(34) it is connected；Hard abrasive material is exported by spiral (18) rotation and enters mixed tube cell 2 (11), mixed under the action of high pressure gas
Dual-Phrase Distribution of Gas olid is formed in tube cell 2 (11)；Dual-Phrase Distribution of Gas olid enters the low of two-nozzle atomization device (36) through overmulling tube cell 1 (10)
Injection flow nozzle (34).
3. mixed powder aerosolization magnetic abrasive preparation according to claim 1 send meal mixer, feature with spiral automatic and accurate
It is:
Under the action of mixed powder aerosolization magnetic abrasive preparation send meal mixer with spiral automatic and accurate, in mixed tube cell 2 (11) and mix
In tube cell 1 (10), hard abrasive material is sufficiently mixed with high pressure gas, forms Dual-Phrase Distribution of Gas olid, the low pressure through pneumatic atomizing rapid condensation equipment
Jet nozzle (34) sprays, and sprays to the molten metal liquid stream in downflow processes, so that hard abrasive grain is injected downflow processes
In molten metal liquid stream in；Adjust the air gauge that meal mixer is sent in mixed powder aerosolization magnetic abrasive preparation with spiral automatic and accurate
(3) pressure of pipeline locating for, so that it may control the speed of Dual-Phrase Distribution of Gas olid injection.
4. mixed powder aerosolization magnetic abrasive preparation according to claim 1 send meal mixer, feature with spiral automatic and accurate
It is: send mixed powder rate-determining steps as follows:
Step 1: according to the design capacity of abrasive can (5), the hard abrasive material of prescribed volume is measured by volume；By abrasive can (5)
The abrasive material cover (7) on top is opened, and the hard abrasive material measured is poured into using funnel, then screws abrasive material cover (7)；
Step 2: air valve 1 (2), motor (20), air valve 2 (25) are placed in off；
Step 3: adjusting air valve 2 (25) arrives maximum opening, and the display of air gauge (3) is observed while adjusting air valve 1 (2) aperture
Pressure is according to the technological requirements adjusted pressure to specified value；
Step 4: according to technique to the traffic requirement of hard abrasive material, motor (20) is controlled and arrive defined rotation speed；
Step 5: at the end of device use, motor (20) first is closed, turn off air valve 2 (25) and air valve 1 (2)；
The step three realizes the pressure control of mixed powder air-flow, and step 4 realizes the flow control of hard abrasive material.
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| CN106520523A (en) * | 2016-12-28 | 2017-03-22 | 宁夏天纵泓光余热发电技术股份有限公司 | Biogas power generation system |
| CN106695575A (en) * | 2017-03-17 | 2017-05-24 | 河南理工大学 | High-pressure grinding material air jet grinding material flow control device and control method thereof |
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| CN108015295A (en) * | 2017-12-29 | 2018-05-11 | 北京康普锡威科技有限公司 | A kind of preparation method of increasing material manufacturing metal-based nano composite powder material |
| CN109746456A (en) * | 2019-03-20 | 2019-05-14 | 湖南骅骝新材料有限公司 | A kind of gas atomization method and device thereof preparing alloy magnetic abrasive |
| CN110523999B (en) * | 2019-09-05 | 2021-12-24 | 山东理工大学 | Elliptical wheel type high-pressure numerical control powder feeder for preparing powder-mixing gas atomization rapid-setting magnetic abrasive |
| CN216698399U (en) * | 2021-12-23 | 2022-06-07 | 宁德时代新能源科技股份有限公司 | Plasma jet device, spraying equipment and solar cell manufacturing equipment |
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| US3655837A (en) * | 1969-06-18 | 1972-04-11 | Republic Steel Corp | Process for producing metal powder |
| GB9302387D0 (en) * | 1993-02-06 | 1993-03-24 | Osprey Metals Ltd | Production of powder |
| CN2553946Y (en) * | 2002-07-12 | 2003-06-04 | 北京工业大学 | Laser three-D quick microforming nanometer powder delivering device |
| CN102328091B (en) * | 2011-06-11 | 2013-06-26 | 山东理工大学 | Powder feeding and mixing device for preparing magnetic grinding material through atomization and rapid solidification and powder feeding and mixing method |
| CN102250584B (en) * | 2011-06-11 | 2014-03-26 | 山东理工大学 | Equipment for preparing atomized quick-setting magnetic abrasive |
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