CN108559862A - A kind of high-efficiency stirring method and device of no volume gas magnesium-carbonization silicon melt - Google Patents
A kind of high-efficiency stirring method and device of no volume gas magnesium-carbonization silicon melt Download PDFInfo
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- CN108559862A CN108559862A CN201810012197.9A CN201810012197A CN108559862A CN 108559862 A CN108559862 A CN 108559862A CN 201810012197 A CN201810012197 A CN 201810012197A CN 108559862 A CN108559862 A CN 108559862A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
- C22C32/0063—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on SiC
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/26—Mixing ingredients for casting metals
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Abstract
The invention discloses a kind of high-efficiency stirring method and devices of no volume gas magnesium carbonization silicon melt, belong to the materials working research field such as metallurgical, casting, the present invention, which using inner wall is furnished with the variable volume graphite crucible of prismatic blade and is combined mode with high speed electromagnetic stirring, is stirred the magnesium silicon melt that is carbonized；Utilize variable volume graphite crucible, empty all gas on melt top, and then under conditions of completely cutting off completely with ambient atmos, it is stirred using high speed electromagnetic, generate circumferential high-speed stirred movement, utilize the prismatic blade on graphite crucible inner wall, prevent downward precipitation and the centrifugation segregation movement of silicon-carbide particle, the equally distributed magnesium carbonization silicon melt of silicon-carbide particle to efficiently obtain no volume gas, mixing time can shorten to 2 minutes, solve the problems, such as volume gas and stirring efficiency low technical present in magnesium carbonization silicon melt stirring.
Description
Technical field
The invention belongs to the materials working research fields such as metallurgical, casting, more particularly to a kind of no volume gas magnesium-carbonization silicon melts
High-efficiency stirring method and device.
Background technology
In the materials working research fields such as metallurgical, casting, it is often necessary to be stirred to various melts, such as metal half
Solid size, the stirring etc. for adding particle melt, it is therefore an objective to make the homogenization such as temperature, ingredient, the tissue of melt.Stirring efficiency
Stirring intensity is generally depended on, stirring intensity is bigger, and the shearing of formation and turbulent flow are stronger, and melt realizes temperature, ingredient, tissue etc.
The mixing time of homogenization is shorter, and stirring efficiency is higher.However, strong stirring can lead to the volume gas problem of melt, easily
High-temperature fusant oxidation, formation is caused to be mingled with tissue etc., even with protective atmosphere, volume gas can also make to spread stomata in melt,
Material property is caused to deteriorate, it is seen then that volume gas problem has fettered the stirring intensity of melt, reduces stirring efficiency.Magnesium-silicon carbide is multiple
Condensation material contains the zinc of 6wt% or so and the silicon-carbide particle of 15wt% or so, has high specific strength, the Gao Bigang of magnesium matrix concurrently
Degree, it is damping it is good, thermal fatigue property is good, electromagnetic shielding capability is strong and the hardness of silicon-carbide particle height, thermal stability is good, wear-resistant
The advantages that, it is widely used in the fields such as aerospace, electronics industry, auto industry.Since 2700 DEG C of the fusing point of silicon carbide is higher than
648 DEG C of the fusing point of magnesium, thus silicon carbide be in magnesium liquid in the form of solid granulates existing for, in addition, due to silicon carbide
3.0~3.2g/cm of density3More than 1.7~1.9g/cm of density of magnesium3, so silicon-carbide particle is easy in magnesium-carbonization silicon melt
It precipitates, therefore, to expeditiously preparing the equally distributed magnesium of silicon-carbide particle-carbonization silicon melt and then obtaining high-performance
Magnesium-composite material of silicon carbide, must just increase the stirring intensity to melt, such volume gas problem just more highlights.It authorizes
The patents of invention such as notification number CN105436436B, Authorization Notice No. CN 103307900B are by " narrowing the melt liquid in stir chamber
The methods of face ", " setting melt disturbance isolator " transmit obstructing agitation to melt liquid level, avoid melt volume gas.The present invention from
Melt sets out with the angle that gas completely cuts off completely, carries out the creativity and innovation in terms of melt stirring, has broken away from volume gas to stirring intensity
With the constraint of stirring efficiency, the equally distributed magnesium of silicon-carbide particle-carbonization silicon melt of no volume gas can be expeditiously prepared.
Invention content
The technical problem to be solved by the present invention is to volume gas present in magnesium-carbonization silicon melt stirring and stirring efficiency are low
Problem provides a kind of high-efficiency stirring method and device of no volume gas magnesium-carbonization silicon melt.
The technical solution adopted by the present invention to solve the technical problems is：
The variable volume graphite crucible that prismatic blade is furnished with using inner wall is combined mode to magnesium-silicon carbide with high speed electromagnetic stirring
Melt is stirred；Using variable volume graphite crucible melt top in graphite crucible is emptied by reducing the volume of graphite crucible
All gas, and under conditions of melt and ambient atmos completely cut off completely, i.e., under conditions of no gas source, carry out melt
Stirring, and then avoid melt volume gas from the root cause；It is stirred using high speed electromagnetic, in the case where no volume gas fetters, makes magnesium-carbon
SiClx melt generates circumferential high-speed stirred movement, using the prismatic blade on graphite crucible inner wall, constantly by magnesium-carbonization of surrounding
Silicon melt move on to it is internal, the magnesium of lower part-carbonization silicon melt is moved on to top, and then prevent silicon-carbide particle it is downward precipitate and from
Heart segregation moves, the equally distributed magnesium of silicon-carbide particle-carbonization silicon melt to efficiently obtain no volume gas.
The beneficial effects of the invention are as follows：Using the present invention, magnesium-carbonization silicon melt is stirred, can directly be prepared
The magnesium that no volume gas, silicon-carbide particle are evenly distributed-carbonization silicon melt, mixing time can shorten to 2 minutes, and stirring efficiency compares document
" neat of heap of stone, Hou Hua, Zhao Yuhong, Zhang Xiaoxia, rural area, the great .SiCp sizes of Ge Hong are to AZ91D magnesium-based composite materials microscopic structure and power
Learn the influence foundry engieerings of performance, 2014,35 (3)：433-435 " reports improve 700% in 16 minutes, solve magnesium-carbon
Volume gas and stirring efficiency low technical problem present in the stirring of SiClx melt.
Description of the drawings
Fig. 1 is the front view that the method for the present invention stirs magnesium-carbonization silicon melt device.
In figure, graphite crucible 2, prismatic blade 3, heating tube 4, cooling tube 5, magnesium-carbonization silicon melt 6, blocking 7, outer cover 8, bottom
Frame 9, volume adjust head 10, thermocouple 11, conical gas vent 12, blocking 13, trip bolt 14, spring 15, bearing shell 16, thrust
Bearing 17, motor 18, transmission mechanism 19, guide plate 20, connection slide plate 21, buffer spring 22, connecting screw 23, guide groove 24,
Rack 25, motor 26, transmission mechanism 27, holder 28.
Fig. 2 is the A-A views that the method for the present invention stirs magnesium-carbonization silicon melt device.
In figure, electromagnetic pole pair 1.
Fig. 3 is the B-B views that the method for the present invention stirs magnesium-carbonization silicon melt device.
Fig. 4 is the C-C views that the method for the present invention stirs magnesium-carbonization silicon melt device.
Fig. 5 is the D-D partial views that the method for the present invention stirs magnesium-carbonization silicon melt device.
Fig. 6 is the E-E partial views that the method for the present invention stirs magnesium-carbonization silicon melt device.
Fig. 7 is the water quenching microstructure of magnesium-carbonization silicon melt of the method for the present invention stirring.
Specific implementation mode
The method of the present invention stirring magnesium-carbonization silicon melt device is described as follows in conjunction with attached drawing：
As Figure 1-Figure 4, the Efficient Agitator of no volume gas magnesium-carbonization silicon melt is mainly stirred by high speed electromagnetic and is filled
It sets, graphite crucible 2 and its volume adjustment device are constituted with device, thermocouple 11, blocking 7 and chassis 9 is moved up and down.
As shown in Figure 1, Figure 2, Figure 4 shows, three pairs of electromagnetic poles pair 1 of high speed electromagnetic agitating device are distributed on around graphite crucible 2,
The distance between 2 outer wall of graphite crucible is 5mm, 1 outside of electromagnetic pole pair plus outer cover 8.
As shown in Figure 1, Figure 2, Figure 3 shows, graphite crucible 2 is fixed on using mechanical connection manner on chassis 9, graphite crucible 2
Heating tube 4 and cooling tube 5 uniformly at intervals in wall are connect with external power supply with cooling liquid supply system respectively；In graphite crucible 2
Upper inside wall is machined with internal thread, cooperates with the external screw thread of 10 lower end of volume adjustment head；Graphite crucible 2 internal thread with
Under inner wall on prismatic blade 3 is distributed with, connect with the inner wall of graphite crucible 2 using mechanical connection manner.Prismatic blade 3 is in graphite earthenware
It is distributed in horizontal layer on 2 different height of crucible, the interval a of the lower edge of undermost prismatic blade 3 and the inner bottom surface of graphite crucible 2
For 0~20mm, the interval b between adjacent prismatic blade layer is 0~20mm makes the upper of the prismatic blade 3 of top layer by adjusting a and b
The lowermost interval c at edge and 2 internal thread of graphite crucible is maintained at 0~10mm, and the upper table of magnesium-carbonization silicon melt 6 faces upward
The lowermost distance d for being higher by 2 internal thread of graphite crucible is 5~10mm.In same prismatic blade layer, the root of three prismatic blades 3
It is 120 ° that portion position, which is distributed on the inner wall of graphite crucible 2 i.e. interval α angle, and the length e of prismatic blade 3 is the half of graphite crucible 2
Diameter, width are the one third of the radius of graphite crucible 2.On the length direction of each prismatic blade 3, the head of prismatic blade 3
On the basis of being directed toward 2 horizontal circle center of graphite crucible, tilted along the flow direction of magnesium-carbonization silicon melt 6, prismatic blade 3
Angle β with the 2 horizontal circumference line of centres of its root and graphite crucible is 29 °, constantly to melt magnesium-silicon carbide of surrounding
Body 6 moves on to inside；In the width direction of each prismatic blade 3, the upper blade of prismatic blade 3 descends blade along magnesium-silicon carbide relatively
The flow direction of melt 6 tilts, and the width direction of prismatic blade 3 and the angle γ of horizontal plane are 36 °, so that continuous underground is by portion
Magnesium-carbonization silicon melt 6 moves on to top.The root position of prismatic blade 3 in adjacent prismatic blade layer is on same level perspective plane
It is 60 ° to be spaced the angles δ.
As shown in Figure 1, Figure 4, Figure 5, the volume adjustment device of graphite crucible 2 is by volume adjustment head 10, blocking 13, fastening spiral shell
Nail 14, spring 15 and driving device are constituted, and are adjusted for realizing the volume of graphite crucible 2.Volume adjusts head 10, and material is stone
Ink, upper part are round bar, and lower part is disk, are machined with external screw thread in disk side, the internal thread with 2 upper inside wall of graphite crucible
It cooperates；Infundibulate gas vent 12 is equipped on disk.The rectangular tablet lower left quarter of blocking 13 is carried adjusts head 10 with volume
Disk uniform thickness round platform, rectangular tablet right part is equipped with circular hole, and blocking 13 is limited in leakage by right part circular hole by trip bolt 14
In bucket shape gas vent 12, there is the gap of 1mm between the round platform and infundibulate gas vent 12 of blocking 13；Spring 15 is sleeved on trip bolt
On 14 screw rod, effect is to jack up blocking 13, when screw-in makes 2 volume of graphite crucible reduce to volume adjustment head 10 downwards, just
In the air discharge in graphite crucible 2；Rotate clockwise the rectangular handle at 14 top of trip bolt, the disk below handle
The rectangular flat-plate compressed of blocking 13 is attached to the upper surface that volume adjusts 10 lower disk of head, infundibulate gas vent 12 is made to seal.It drives
Dynamic device is made of motor 18, transmission mechanism 19 and detent mechanism, for driving volume adjustment head 10 to screw in downwards and rotation upwards
Go out graphite crucible 2, is the key device for realizing the adjustment of 2 volume of graphite crucible；Transmission mechanism 19 is by turbine and worm screw, gear and tooth
Wheel transmission is constituted；Detent mechanism is located at the round bar top of volume adjustment head 10, and located lateral is carried out by upper and lower two bearing shells 16, by
Upper and lower two thrust bearings 17 carry out longitudinal register；Motor 18, transmission mechanism 19 and the detent mechanism of driving device are respectively adopted
Mechanical connection manner is fixed on guide plate 20, carries out moving down in the guide groove 24 that guide plate 20 can be on being fixed on holder 28
It is dynamic.
As shown in Fig. 1, Fig. 6, move up and down device by motor 26, transmission mechanism 27, connection slide plate 21, buffer spring 22,
Connecting screw 23 is constituted.Transmission mechanism 27 is made of rack 25 and gear, turbine and worm-drive, the lower end of rack 25 and connection
Slide plate 21 is connected using mechanical connection manner.In the guide groove 24 that connection slide plate 21 can be on being fixed on holder 28 move down
It is dynamic, and connect with guide plate 20 by buffer spring 22 and connecting screw 23, make volume adjustment head 10 and its driving device or more
It is mobile.In bearer connection screw rod 23, guide plate 20, volume adjustment head 10 and its driving device, thermocouple 11, blocking 13, fastening
After the related components such as screw 14, spring 15, the decrement of buffer spring 22 is also greater than the maximum of 2 internal thread of graphite crucible
Screw-in depth.Move up and down the motor 26 of device, transmission mechanism 27 is fixed on using mechanical connection manner on holder 28.
As Figure 1 and Figure 4, thermocouple 11 is fixed on volume adjustment head 10, and lower end connects with magnesium-carbonization silicon melt 6
It touches, stretches into 4mm in magnesium-carbonization silicon melt 6, block 7 bottoms for being located at graphite crucible 2.
A kind of high-efficiency stirring method of no volume gas magnesium-carbonization silicon melt, the variable volume of prismatic blade is furnished with using above-mentioned inner wall
Graphite crucible is combined mode with high speed electromagnetic stirring and is stirred to magnesium-carbonization silicon melt；Using variable volume graphite crucible, lead to
The volume of the small graphite crucible of over-subtraction empties all gas on melt top in graphite crucible, and complete with ambient atmos in melt
Under conditions of full isolation, i.e., under conditions of no gas source, the stirring of melt is carried out, and then avoid melt volume gas from the root cause；
It is stirred using high speed electromagnetic, in the case where no volume gas fetters, magnesium-carbonization silicon melt is made to generate circumferential high-speed stirred movement, profit
With the prismatic blade on graphite crucible inner wall, constantly by the magnesium of surrounding-carbonization silicon melt move on to it is internal, by magnesium-carbonization of lower part
Silicon melt moves on to top, and then prevents downward precipitation and the centrifugation segregation movement of silicon-carbide particle, to efficiently obtain nothing
The equally distributed magnesium of silicon-carbide particle-carbonization silicon melt of volume gas.Include the following steps：
Step 1, magnesium-carbonization silicon melt is prepared, temperature is controlled at 700 DEG C；
Step 2, above-mentioned magnesium-carbonization silicon melt to be poured into graphite crucible 2, the preheating temperature of graphite crucible 2 is 700 DEG C,
Preheating is realized by the heating tube 4 in its wall；
Step 3, start and move up and down device, the external screw thread of 10 lower end of volume adjustment head is dropped into edge on graphite crucible 2
Internal thread at, closing move up and down device；Volume, is adjusted the external screw thread of head 10 by the driving device for starting volume adjustment head 10
It screws in the internal thread of graphite crucible 2, when magnesium-carbonization silicon melt 6 starts the round platform and infundibulate gas vent 12 along blocking 13
Between gap, when being overflowed from the lower part of the rectangular tablet of blocking 13, close the driving device of volume adjustment head 10；It twists clockwise
Tight trip bolt 14, infundibulate gas vent 12 is sealed, melt is made to completely cut off completely with ambient atmos；
Step 4, thermocouple 11 is connected, using thermocouple 11 to external power supply and cooling liquid supply system input information, is adjusted
Heating tube 4 and cooling tube 5 are saved, the temperature of magnesium-carbonization silicon melt 6 is made to stablize at 700 DEG C, starts high speed electromagnetic agitating device, it is right
Magnesium-carbonization silicon melt 6 carries out Isothermal stirring, stablizes stirring 2 minutes or so；
Step 5, closing high-speed electromagnetic mixing apparatus unscrews trip bolt 14 counterclockwise, makes blocking 13 in the work of spring 15
It is bounced under, magnesium-carbonization silicon melt 6 can be released by opening blocking 7, for using.
Fig. 7 is the water quenching microstructure of magnesium-carbonization silicon melt of the method for the present invention stirring, and darker regions are magnesium-based in figure
Body, light areas are silicon-carbide particle, it is seen then that do not have stomata, silicon-carbide particle to be evenly distributed in magnesium matrix on magnesium matrix.
Embodiment one, the power of high speed electromagnetic agitating device is 20kW, rotating speed is 900 revs/min, a 0mm, b are
Under conditions of 0mm, c 0mm, d are 5mm, after stablizing stirring 50 seconds 1 minute, no volume gas can be obtained, silicon-carbide particle is evenly distributed
Magnesium-carbonization silicon melt 6.
Embodiment two, the power of high speed electromagnetic agitating device is 20kW, rotating speed is 1200 revs/min, a 20mm, b are
Under conditions of 20mm, c 10mm, d are 10mm, after stablizing stirring 2 minutes, no volume gas can be obtained, silicon-carbide particle is evenly distributed
Magnesium-carbonization silicon melt 6.
As it can be seen that under the premise of the contact being emptied using variable volume graphite crucible and completely cutting off gas with melt, and then in big work(
Under rate, high speed electromagnetic stirring condition, the method for the present invention can expeditiously prepare no volume gas, the magnesium-that silicon-carbide particle is evenly distributed
Be carbonized silicon melt.
Claims (4)
1. a kind of high-efficiency stirring method of no volume gas magnesium-carbonization silicon melt, which is characterized in that be furnished with the change of prismatic blade using inner wall
Volume graphite crucible is combined mode with high speed electromagnetic stirring and is stirred to magnesium-carbonization silicon melt；Utilize variable volume graphite earthenware
Crucible empties all gas on melt top in graphite crucible, and in melt and extraneous gas by reducing the volume of graphite crucible
Under conditions of body isolation completely, i.e., under conditions of no gas source, the stirring of melt is carried out, and then avoid melt from rolling up from the root cause
Gas；It is stirred using high speed electromagnetic, in the case where no volume gas fetters, magnesium-carbonization silicon melt is made to generate circumferential high-speed stirred movement,
Using the prismatic blade on graphite crucible inner wall, constantly by the magnesium of surrounding-carbonization silicon melt move on to it is internal, by magnesium-carbon of lower part
SiClx melt moves on to top, and then prevents downward precipitation and the centrifugation segregation movement of silicon-carbide particle, to efficiently obtain
The equally distributed magnesium of silicon-carbide particle without volume gas-carbonization silicon melt, includes the following steps：
Step 1, magnesium-carbonization silicon melt is prepared, temperature is controlled at 700 DEG C；
Step 2, above-mentioned magnesium-carbonization silicon melt is poured into graphite crucible, the preheating temperature of graphite crucible is 700 DEG C, by its wall
Interior heating tube realizes preheating；
Step 3, start and move up and down device, the external screw thread of volume adjustment head lower end is dropped to the internal thread on edge on graphite crucible
Place, closing move up and down device；Volume adjustment head is screwed into graphite crucible by the driving device for starting volume adjustment head
Internal thread in, when magnesium-carbonization silicon melt start along between the round platform and infundibulate gas vent of blocking gap, from blocking
When the lower part of rectangular tablet is overflowed, the driving device of volume adjustment head is closed；Trip bolt is tightened clockwise, infundibulate is deflated
Mouth seals, and melt is made to completely cut off completely with ambient atmos；
Step 4, thermocouple is connected, using thermocouple to external power supply and cooling liquid supply system input information, adjusts heating tube
And cooling tube, so that the temperature of magnesium-carbonization silicon melt is stablized at 700 DEG C, starts high speed electromagnetic agitating device, it is molten to magnesium-silicon carbide
Body carries out Isothermal stirring, stablizes stirring 2 minutes；
Step 5, closing high-speed electromagnetic mixing apparatus unscrews trip bolt counterclockwise, and blocking is made to bounce under the action of the spring, beats
Magnesium-carbonization silicon melt can be released by opening blocking, for using.
2. a kind of high-efficiency stirring method of no volume gas magnesium-carbonization silicon melt according to claim 1, which is characterized in that high
The rotating speed of fast electromagnetic mixing apparatus is 900~1200 revs/min.
3. a kind of Efficient Agitator of no volume gas magnesium-carbonization silicon melt, the device include：High speed electromagnetic agitating device, graphite
It crucible 2 and its volume adjustment device and moves up and down device, thermocouple 11, block 7 and chassis 9；It is characterized in that：
It is machined with internal thread in the upper inside wall of graphite crucible 2, is cooperated with the external screw thread of 10 lower end of volume adjustment head；Graphite
The volume adjustment device of crucible 2 is made of volume adjustment head 10, blocking 13, trip bolt 14, spring 15 and driving device, is used for
Realize the volume adjustment of graphite crucible 2；Volume adjusts head 10, and material is graphite, and upper part is round bar, and lower part is disk, in circle
Disc side is machined with external screw thread, cooperates with the internal thread of 2 upper inside wall of graphite crucible；Infundibulate is equipped on disk to deflate
Mouth 12；The rectangular tablet lower left quarter of blocking 13 carries the round platform for the disk uniform thickness that head 10 is adjusted with volume, and rectangular tablet right part is set
There are circular hole, blocking 13 to be limited in infundibulate gas vent 12 by trip bolt 14 by right part circular hole, the round platform of blocking 13 and leakage
There is the gap of 1mm between bucket shape gas vent 12；Spring 15 is sleeved on the screw rod of trip bolt 14, and effect is to jack up blocking 13,
When screw-in makes 2 volume of graphite crucible reduce to volume adjustment head 10 downwards, convenient for the air discharge in graphite crucible 2；Clockwise
The rectangular flat-plate compressed of blocking 13 can be attached to volume tune by the rectangular handle at the top of rotational fastener screw 14, the disk below handle
The upper surface of 10 lower disk of whole head, makes infundibulate gas vent 12 seal；Driving device is by motor 18, transmission mechanism 19 and positioning
Mechanism is constituted, and is to realize 2 volume of graphite crucible for driving volume adjustment head 10 to screw in downwards and screwing out graphite crucible 2 upwards
The key device of adjustment；Transmission mechanism 19 is made of turbine and worm screw, gear and gear drive；Detent mechanism is located at volume adjustment
First 10 round bar top, located lateral is carried out by upper and lower two bearing shells 16, and longitudinal register is carried out by upper and lower two thrust bearings 17；
Motor 18, transmission mechanism 19 and the detent mechanism of driving device are respectively adopted mechanical connection manner and are fixed on guide plate 20, lead
To plate 20 can be on being fixed on holder 28 guide groove 24 in move up and down；Device is moved up and down by motor 26, driver
Structure 27, connection slide plate 21, buffer spring 22, connecting screw 23 are constituted；Transmission mechanism 27 is by rack 25 and gear, turbine and worm screw
Transmission is constituted, and the lower end of rack 25 is connected with slide plate 21 is connect using mechanical connection manner；Connection slide plate 21 can be fixed on branch
It moves up and down in guide groove 24 on frame 28, and is connect with guide plate 20 by buffer spring 22 and connecting screw 23, made
Volume adjusts head 10 and its driving device moves up and down；In bearer connection screw rod 23, guide plate 20, volume adjustment head 10 and its drive
After the related components such as dynamic device, thermocouple 11, blocking 13, trip bolt 14, spring 15, the decrement of buffer spring 22 is also
It is greater than the maximum screw-in depth of 2 internal thread of graphite crucible；Move up and down the motor 26 of device, transmission mechanism 27 is connected using machinery
The mode of connecing is fixed on holder 28.
4. a kind of Efficient Agitator of no volume gas magnesium-carbonization silicon melt according to claim 3, which is characterized in that magnesium-
It is 5~10mm that the upper table of carbonization silicon melt 6, which faces upward and is higher by the lowermost distance d of 2 internal thread of graphite crucible,.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810012197.9A CN108559862A (en) | 2018-01-05 | 2018-01-05 | A kind of high-efficiency stirring method and device of no volume gas magnesium-carbonization silicon melt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810012197.9A CN108559862A (en) | 2018-01-05 | 2018-01-05 | A kind of high-efficiency stirring method and device of no volume gas magnesium-carbonization silicon melt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916655A (en) * | 2019-04-18 | 2019-06-21 | 国家深海基地管理中心 | Underwater research vehicle carrying type deep sea sediment sampler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916655A (en) * | 2019-04-18 | 2019-06-21 | 国家深海基地管理中心 | Underwater research vehicle carrying type deep sea sediment sampler |
| CN109916655B (en) * | 2019-04-18 | 2021-09-17 | 海检检测有限公司 | Carrying type deep sea sediment sampler of underwater vehicle |
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