CN107008894B - A kind of preparation method of high neutron absorption rate neutron absorption composite material - Google Patents
A kind of preparation method of high neutron absorption rate neutron absorption composite material Download PDFInfo
- Publication number
- CN107008894B CN107008894B CN201710191911.0A CN201710191911A CN107008894B CN 107008894 B CN107008894 B CN 107008894B CN 201710191911 A CN201710191911 A CN 201710191911A CN 107008894 B CN107008894 B CN 107008894B
- Authority
- CN
- China
- Prior art keywords
- mixing
- plate
- neutron absorption
- support
- furnace body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 136
- 239000000463 material Substances 0.000 claims abstract description 49
- 238000005245 sintering Methods 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 30
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 13
- 239000011812 mixed powder Substances 0.000 claims abstract description 12
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 11
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 8
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000000137 annealing Methods 0.000 claims abstract description 4
- 238000005098 hot rolling Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 47
- 238000003756 stirring Methods 0.000 claims description 24
- 230000001105 regulatory effect Effects 0.000 claims description 22
- 238000005192 partition Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000005303 weighing Methods 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B22F1/0003—
-
- 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
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
- B01F33/8212—Combinations of dissimilar mixers with consecutive receptacles with moving and non-moving stirring devices
-
- 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
- B22F3/003—Apparatus, e.g. furnaces
-
- 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
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- 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
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- 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
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- 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
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/062—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on B4C
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- 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
- C22C32/0057—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 B4C
-
- 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
- B01F2101/45—Mixing in metallurgical processes of ferrous or non-ferrous materials
-
- 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
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
- B22F2003/185—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers by hot rolling, below sintering temperature
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to a kind of preparation methods of high neutron absorption rate neutron absorption composite material, and its step are as follows: (1) weighing 8-40 parts of boron carbide powder, 32-96 parts of Al alloy powder and 0.1-10 parts of light rare earth powder according to parts by weight；(2) boron carbide powder, Al alloy powder and light rare earth powder are added in mixed powder equipment and carry out mixing；(3) it will be added in vacuum sintering furnace through the material of overmulling powder equipment after mixing and be sintered to obtain strip plate；(4) it is molded after four side wall upper a layer thickness of strip plate are the aluminium alloy layer of 0.05-1cm；(5) 3-8 passage hot rolling treatment is carried out after being molded, it is made annealing treatment between rolling pass through 450~500 DEG C, high neutron absorption rate neutron absorption composite material can be obtained, guarantee the metallurgical quality of material, guarantee that composite material has excellent mechanical property, thermal conductivity and neutron absorption capability.
Description
Technical field
The present invention relates to a kind of preparation methods of composite material, and in particular to a kind of high neutron absorption rate neutron-absorbing is compound
The preparation method of material.
Background technique
The advantages that nuclear power is due to efficient, low consumption, green becomes and thermoelectricity, water power and the big power supply branch in the world three claimed
Column；B4C/Al neutron absorber material is that current developed country three generations power station spentnuclear fuel dry and wet intensively stores screen work and its shipping container
The Latest Materials of reactive control.
Traditional neutron-absorbing fills rolling mill practice, B4C and Al using cabinet pine with B4C/Al composite material and is uniformly mixed
Pine is loaded on aluminium alloy box afterwards, and the Direct Rolling after being vented, obtained composite material is sandwich structure, in upper layer and lower layer aluminium sheet
Intermediate is the material for remaining as powder, not formed continuous composite block, therefore, poor mechanical property, the thermal conductivity of product be low,
Neutron absorption capability is unstable.
Summary of the invention
The present invention proposes a kind of preparation method of high neutron absorption rate neutron absorption composite material regarding to the issue above, protects
The metallurgical quality of material is demonstrate,proved, guarantees that composite material has excellent mechanical property, thermal conductivity and neutron absorption capability.
Specific technical solution is as follows:
A kind of preparation method of high neutron absorption rate neutron absorption composite material, its step are as follows:
(1) 8-40 parts of boron carbide powder, 32-96 parts of Al alloy powder and 0.1-10 parts of light rare earth powder are weighed according to parts by weight；
(2) boron carbide powder, Al alloy powder and light rare earth powder are added in mixed powder equipment and carry out mixing；
(3) it will be added in vacuum sintering furnace through the material of overmulling powder equipment after mixing and be sintered to obtain strip plate；
(4) it is molded after four side wall upper a layer thickness of strip plate are the aluminium alloy layer of 0.05-1cm；
(5) 3-8 passage hot rolling treatment is carried out after being molded, and is made annealing treatment, be can be obtained through 450~500 DEG C between rolling pass
High neutron absorption rate neutron absorption composite material.
The preparation method of above-mentioned a kind of high neutron absorption rate neutron absorption composite material, wherein the mixed powder equipment includes
Shell, case top are equipped with the first opening, are additionally provided with first support ring of circle on shell, the first L-shaped structure in support ring section,
In the first open outside, the first support ring is equipped with section for the second support cap of n shape structure, on the second support cap for wrapping setting
Equipped with feeding mechanism；It is equipped with partition in shell, mixing device is equipped with above partition, partition lower section is equipped with bearing material
Mechanism, the feeding mechanism include sequentially connected feed hopper, sub-feed tube and the first feed pipe, and the first feed pipe is circular ring shape knot
Structure, sub-feed tube connect the first feed pipe and feed hopper, and the first feed pipe passes through the second support cap and is fixed on the second support cap；
The mixing device includes mixing tank, the first mixing mechanism, the second mixing mechanism, and the mixing tank is top end opening
Tube structure, stock guide is equipped in the mixing tank, the stock guide is spherical cap structure, and the open end of mixing tank is to fix
End, mixing tank not opening end be mixing end, fixing end is cylindrical structure, mixing end is truncated cone-shaped structure, mixing end it is straight
Diameter is gradually reduced from top to bottom, and the mixing end of mixing tank is equipped with several first discharge holes, and the fixing end of mixing tank is equipped with one
The first clamping bump and second clamping bump of circle are enclosed, the first clamping bump is slidably disposed on the first opening inner wall, the
Two clamping bumps are slidably disposed on the first support ring inner wall, are fixed on mixing tank rotatably on shell, described mixed
First rack gear of circle is additionally provided on charging basket, the first rack gear is located at the first support ring and shell surrounds in the cavity formed, and second
It holds and covers equipped with first motor, first motor one end passes through the second support cap and the first support ring, and first be arranged thereon is actively
Gear is meshed with the first rack gear；First mixing mechanism includes main shaft, stirring rod, the first paddle group and the second paddle
Group, main shaft one end is fixed on the second support cap, the other end is connected by the way that axle sleeve is rotatable with mixing tank bottom, stirring rod
Quantity be 6,8 or 10, uniform circumferentially fixed on main shaft, the first paddle group and the second paddle group alternating
It is arranged on stirring rod, the first paddle group is made of 3 paddles, and the second paddle group is made of 2 paddles, and first stirs
The paddle for mixing leaf group and the second paddle group is staggered, paddle it is inclined be arranged on stirring rod, the paddle with
Angle a between stirring rod is 60-70 °；Second mixing mechanism includes be fixed on mixing tank outer wall from top to bottom first
Mixing board group, the second mixing board group and third mixing board group, the first mixing board group, the second mixing board group and third mixing board group are equal
By the mixing board group of identical quantity at the mixing plate between two neighboring mixing board group is staggered, and the mixing plate includes connecting
Fishplate bar and agitating plate, connecting plate is inclined to be fixed on mixing tank outer wall, and agitating plate is vertical to be fixed on connecting plate；
The stock supporting mechanism includes bearing material bucket and vibration first motor, and the setting of bearing material bucket is in vibration first motor, bearing material
Bucket bottom is equipped with the guide platform being obliquely installed, and bearing material bucket is equipped with discharge nozzle, and discharge nozzle is located at the least significant end of guide platform；
The partition includes side baffle, bottom plate and adjustable plate, and side baffle is inclined to be fixed on bottom plate periphery, the bottom
Plate is equipped with several second discharge holes, and adjustable plate one end is fixed in the adjusting cavity of bottom plate by spring, and the other end is pushed away with electronic
Bar is connected, and adjustable plate is equipped with third discharge hole, and the size of third discharge hole, distribution are identical as the second discharge hole；Pass through electricity
Dynamic push rod makes adjustable plate movement, the opening and closing to adjust the second discharge hole.
A kind of preparation method of above-mentioned high neutron absorption rate neutron absorption composite material, wherein the vacuum sintering furnace packet
Include furnace body, sintering mold, demoulding mechanism；The sidewall of the furnace body be equipped with heating region, the sintering mold include upper cover die and
Lower lining mould, the upper cover die are the rectangular parallelepiped structure of bottom opening, and upper cover die is fixed on furnace body inner chamber body by first support
Top, the lower lining mould include liner plate and seben, and seben is fixed on above liner plate, the bottom open end phase contract of seben and upper cover die
It closes, liner plate bottom is equipped with the first spacing block set, and the first spacing block set two sides are respectively equipped with second limiting groove, the upper set
Mould is equipped with the second feed pipe；
The demoulding mechanism includes supporting plate, the first support plate, the second support plate, and the quantity of supporting plate is two, two supporting plates
The two sides of lower lining mould are separately positioned on, each supporting plate is fixed in furnace body inner chamber body by two the first cylinders, and supporting plate is equipped with
Auxiliary supporting plate, the auxiliary supporting plate on two supporting plates are oppositely arranged, and lower lining mould is arranged on auxiliary supporting plate, and auxiliary supporting plate is equipped with the second limiting card
Block, the second limit card block is plug-type to be arranged in the second limiting groove, and furnace body inner chamber body is arranged in first support plate
Bottom, the first support plate are equipped with the first limiting groove, the position of the first limiting groove, size and the first spacing block set position
Set, size it is corresponding, the height H1 of the first support plate is greater than the height H2 of supporting plate, and the quantity of second support plate is two,
The two sides of the first support plate are separately positioned on, the position of the second support plate and the position of supporting plate are corresponding, the height of the liner plate
H3 is greater than 2cm；
First support plate bottom is set there are two sliding block, and sliding block is slidably disposed in the sliding slot of inboard wall of furnace body, the
One support plate bottom sets that there are two sections as the first regulating tank of semicircular structure, and the inner wall of the first regulating tank is equipped with interior spiral shell
Line, the bottom of inboard wall of furnace body set accordingly there are two section as the second regulating tank of semicircular structure, the inner wall of the second regulating tank
For smooth structure, the first regulating tank and the second regulating tank are mutually spliced to form the adjusting channel of circular configuration, are equipped with externally threaded
Screw rod is rotatably fixed on sidewall of the furnace body and fixing bearing across channel is adjusted, the external screw thread of screw rod and the first regulating tank
Internal screw thread be meshed, screw rod pass through furnace body one end be equipped with driven gear, the second driving tooth of driven gear and the second motor
Wheel is meshed；
The internal chamber wall of the furnace body is rectangular parallelepiped structure, and the open end of furnace body is located on sidewall of the furnace body, and fire door and furnace body are sliding
Dynamic connection, fire door top are equipped with second connecting rod, and second connecting rod is connected with the second cylinder being fixed at the top of furnace body, the second cylinder
Control the folding of fire door.
The preparation method of above-mentioned a kind of high neutron absorption rate neutron absorption composite material, wherein the mixed powder equipment mixes
Material mode are as follows: material enters in mixing tank through what feeding mechanism dispersed, and first motor drives mixing tank with the speed of 30-70r/min
Degree is rotated, and the first mixing mechanism does not rotate, and material is stirred mixing under the action of the first mixing mechanism, stirs
After mixing 30-80min, the velocity of rotation of mixing tank is risen into 60-200r/min, the material tentatively mixed from the first discharge hole into
Enter in shell, is located on partition, at this point, the second discharge hole is in close state, effect of the material in the second mixing mechanism
Under continue to be stirred, after stirring 60-180min, adjustable plate is pulled by the effect of electric pushrod, makes the second discharge hole and the
Three discharge holes align, and material enters in bearing material bucket, and discharge under the action of vibrating first motor from discharge nozzle.
The preparation method of above-mentioned a kind of high neutron absorption rate neutron absorption composite material, wherein the vacuum sintering furnace
Sintering processing are as follows: when original state, fire door is in close state, and the first cylinder is in contraction state, work of the lower lining mould in supporting plate
It is in closed state with the interaction of upper cover die with lower, at this point, the spacing at the top of liner plate between upper cover die bottom is 0.5-
1cm injects mixed material into sintering mold by the second feed pipe, and material carries out vacuum-sintering after filling, be sintered 1-
After 2h, continue to shrink the first cylinder, makes to be bonded to each other at the top of liner plate with upper cover die bottom, continue to be sintered 2-4h；At demoulding
When reason, the first cylinder is stretched, after lower lining mould is dropped to therewith in the first support plate, supporting plate continues operating downwards until with second
Fagging fits, at this point, supporting plate is separated from each other with lower lining mould, further drives screw rod rotation by the rotation of motor, thus
Keep the first support base mobile to furnace body opening, opening fire door is lifted up by the second cylinder, takes out product, then reverse operating
?.
The invention has the benefit that
(1) the mixed powder of the present invention is more abundant, avoids damaging raw material, improves efficiency, reduces costs, it is ensured that
Product quality.
(2) present invention directly carries out vacuum-sintering to powder, easy to operate, is convenient in demoulding, and adapts to by force, securely and reliably.
(3) present invention guarantee material metallurgical quality, guarantee composite material have excellent mechanical property, thermal conductivity and in
Sub- absorbability.
Detailed description of the invention
Fig. 1 is the mixed powder equipment cross-sectional view of the present invention.
Fig. 2 is the first mixing mechanism top view of the invention.
Fig. 3 is the fire door closed state cross-sectional view of vacuum sintering furnace of the present invention.
Fig. 4 is the door opened state cross-sectional view of vacuum sintering furnace of the present invention.
Fig. 5 is the A-A sectional view (1) of vacuum sintering furnace of the present invention.
Fig. 6 is the A-A sectional view (2) of vacuum sintering furnace of the present invention.
Specific embodiment
Clear to be more clear technical solution of the present invention, the present invention is described further with reference to the accompanying drawing,
The technical characteristic of any pair of technical solution of the present invention carries out the scheme that equivalencing is obtained with conventional reasoning and each falls within guarantor of the present invention
Protect range.
Appended drawing reference
Shell 11, first opening the 12, first support ring 13, the second support cap 14, feeding mechanism 15, feed hopper 16, sub-material
Pipe 17, the first feed pipe 18, partition 19, mixing tank 110, the first mixing mechanism 111, the second mixing mechanism 112, fixing end
113, mixing end 114, the first discharge hole 115, the first clamping bump 116, the second clamping bump 117, the first rack gear 118, first
Motor 119, the first driving gear 120, stock guide 121, main shaft 122, stirring rod 123, the stirring of the first paddle group 124, second
Leaf group 125, paddle 126, the first mixing board group 127, the second mixing board group 128, third mixing board group 129, mixing plate 130,
Connecting plate 131, agitating plate 132, bearing material bucket 133, vibration first motor 134, guide platform 135, discharge nozzle 136, side baffle
137, bottom plate 138, adjustable plate 139, spring 140, electric pushrod 141, third discharge hole 142, the second discharge hole 143, furnace body 21,
Sintering mold 22, demoulding mechanism 23, upper cover die 24, lower lining mould 25, first support 26, liner plate 27, seben 28, the first spacing block set
29, the second limiting groove 210, the second feed pipe 211, supporting plate 212, the first support plate 213, the second support plate 214, the first cylinder
215, auxiliary supporting plate 216, the second limit card block 217, the first limiting groove 218, sliding block 219, the first regulating tank 220, second are adjusted
Slot 221, fixing bearing 223, driven gear 224, the second motor 225, the second driving gear 226, fire door 227, second connecting rod
228, the second cylinder 229.
A kind of preparation method of high neutron absorption rate neutron absorption composite material, its step are as follows:
(1) 8-40 parts of boron carbide powder, 32-96 parts of Al alloy powder and 0.1-10 parts of light rare earth powder are weighed according to parts by weight；
(2) boron carbide powder, Al alloy powder and light rare earth powder are added in mixed powder equipment and carry out mixing；
(3) it will be added in vacuum sintering furnace through the material of overmulling powder equipment after mixing and be sintered to obtain strip plate；
(4) it is molded after four side wall upper a layer thickness of strip plate are the aluminium alloy layer of 0.05-1cm；
(5) 3-8 passage hot rolling treatment is carried out after being molded, and is made annealing treatment, be can be obtained through 450~500 DEG C between rolling pass
High neutron absorption rate neutron absorption composite material.
As shown in Figure 1 and Figure 2, mixed powder equipment includes shell 11, and case top is equipped with the first opening 12, is additionally provided on shell
One the first support ring 13 of circle, the first L-shaped structure in support ring section, wrapping are arranged on the first open outside, the first support ring
Equipped with section be n shape structure the second support cap 14, the second support cap be equipped with feeding mechanism 15, the feeding mechanism include according to
Feed hopper 16, sub-feed tube 17 and the first feed pipe 18 of secondary connection, the first feed pipe are cirque structure, sub-feed tube connection first
Feed pipe and feed hopper, the first feed pipe pass through the second support cap and are fixed on the second support cap；Separation machine is equipped in shell
Structure 19, partition top is equipped with mixing device, partition lower section is equipped with stock supporting mechanism；
The mixing device includes mixing tank 110, the first mixing mechanism 111, the second mixing mechanism 112, the mixing tank
For the tube structure of top end opening, the open end of mixing tank be fixing end 113, mixing tank not opening end be mixing end 114, Gu
Fixed end is cylindrical structure, mixing end is truncated cone-shaped structure, and the diameter at mixing end is gradually reduced from top to bottom, the mixing of mixing tank
End is equipped with several first discharge holes 115, and the fixing end of mixing tank is equipped with first clamping bump of circle 116 and second card of circle
Convex block 117 is connect, the first clamping bump is slidably disposed on the first opening inner wall, and the second clamping bump is slidably disposed in
It on first support ring inner wall, is fixed on mixing tank rotatably on shell, first rack gear of circle is additionally provided on the mixing tank
118, the first rack gear is located at the first support ring and shell surrounds in the cavity formed, and the second support cap is equipped with first motor 119,
First motor one end passes through the second support cap and the first support ring, the first driving gear 120 being arranged thereon and the first rack gear phase
Engagement, the mixing tank is interior to be equipped with stock guide 121, and the stock guide is spherical cap structure；First mixing mechanism includes main shaft
122, stirring rod 123, the first paddle group 124 and the second paddle group 125, main shaft one end are fixed on the second support cap, are another
One end is connected by the way that axle sleeve is rotatable with mixing tank bottom, and the quantity of stirring rod is 6,8 or 10, uniform week
To being fixed on main shaft, the first paddle group and the second paddle group are disposed alternately on stirring rod, and the first paddle group is by 3
Paddle 126 forms, and the second paddle group is made of 2 paddles, the paddle of the first paddle group and the second paddle group
It is staggered, paddle is inclined to be arranged on stirring rod, and the angle a between the paddle and stirring rod is 60-70 °；Institute
Stating the second mixing mechanism includes the first mixing board group 127 for being fixed on mixing tank outer wall from top to bottom, 128 and of the second mixing board group
Third mixing board group 129, the first mixing board group, the second mixing board group and third mixing board group by identical quantity mixing plate
130 form, and the mixing plate between two neighboring mixing board group is staggered, and the mixing plate includes connecting plate 131 and agitating plate
132, connecting plate is inclined to be fixed on mixing tank outer wall, and agitating plate is vertical to be fixed on connecting plate；
The stock supporting mechanism includes bearing material bucket 133 and vibration first motor 134, and the setting of bearing material bucket is in vibration first motor
On, it holds feed hopper bottom and is equipped with the guide platform 135 being obliquely installed, bearing material bucket is equipped with discharge nozzle 136, and discharge nozzle is flat positioned at guide
The least significant end of platform；
The partition includes side baffle 137, bottom plate 138 and adjustable plate 139, and side baffle is inclined to be fixed on outside bottom plate
Week, the bottom plate are equipped with several second discharge holes 143, and adjustable plate one end is fixed in the adjusting cavity of bottom plate by spring 140,
The other end is connected with electric pushrod 141, and adjustable plate is equipped with third discharge hole 142, the size of third discharge hole, distribution and the
Two discharge holes are identical；Make adjustable plate movement, the opening and closing to adjust the second discharge hole by electric pushrod.
As shown in figures 3 to 6, the vacuum sintering furnace includes furnace body 21, sintering mold 22, demoulding mechanism 23；The furnace body
Side wall is equipped with heating region, and the sintering mold includes upper cover die 24 and lower lining mould 25, and the upper cover die is bottom opening
Rectangular parallelepiped structure, upper cover die are fixed on the top of furnace body inner chamber body by first support 26, and the lower lining mould includes 27 He of liner plate
Seben 28, seben are fixed on above liner plate, and the bottom open end of seben and upper cover die is mutually agreed with, and liner plate bottom is equipped with the first limit
Convex block 29, the first spacing block set two sides are respectively equipped with second limiting groove 210, and the upper cover die is equipped with the second feed pipe
211；
The demoulding mechanism includes supporting plate 212, the first support plate 213, the second support plate 214, and the quantity of supporting plate is two,
Two supporting plates are separately positioned on the two sides of lower lining mould, and each supporting plate is fixed in furnace body inner chamber body by two the first cylinders 215,
Supporting plate is equipped with auxiliary supporting plate 216, and the auxiliary supporting plate on two supporting plates is oppositely arranged, and lower lining mould is arranged on auxiliary supporting plate, on auxiliary supporting plate
Equipped with the second limit card block 217, the second limit card block is plug-type to be arranged in the second limiting groove, and first support plate is set
It sets in the bottom of furnace body inner chamber body, the first support plate is equipped with the first limiting groove 218, the position of the first limiting groove, size
Corresponding with the position of the first spacing block set, size, the height H1 of the first support plate is greater than the height H2 of supporting plate, and described second
The quantity of fagging is two, is separately positioned on the two sides of the first support plate, the position of the second support plate and the position of supporting plate are opposite
It answers, the height H3 of the liner plate is greater than 2cm；
First support plate bottom is set there are two sliding block 219, and sliding block is slidably disposed in the sliding slot of inboard wall of furnace body,
First support plate bottom set there are two section as the first regulating tank 220 of semicircular structure, the inner wall of the first regulating tank is equipped with
Internal screw thread, the bottom of inboard wall of furnace body set accordingly there are two section as the second regulating tank 221 of semicircular structure, the second regulating tank
Inner wall be smooth structure, the first regulating tank and the second regulating tank are mutually spliced to form the adjusting channel of circular configuration, are equipped with outside
The screw rod 222 of screw thread is rotatably fixed on sidewall of the furnace body and fixing bearing 223 across channel is adjusted, the external screw thread of screw rod
It is meshed with the internal screw thread of the first regulating tank, one end that screw rod passes through furnace body is equipped with driven gear 224, driven gear and the second electricity
Second driving gear 226 of machine 225 is meshed.
The internal chamber wall of the furnace body is rectangular parallelepiped structure, and the open end of furnace body is located on sidewall of the furnace body, fire door 227 and furnace body
It being slidably connected, second connecting rod 228 is equipped at the top of fire door, second connecting rod is connected with the second cylinder 229 being fixed at the top of furnace body,
The folding of second cylinder control fire door.
The mixing method of the mixed powder equipment are as follows: material enters in mixing tank through what feeding mechanism dispersed, first motor band
Dynamic mixing tank is rotated with the speed of 30-70r/min, and the first mixing mechanism does not rotate, and material is in the first mixing mechanism
Under the action of be stirred mixing, stir 30-80min after, the velocity of rotation of mixing tank is risen into 60-200r/min, just
It walks mixed material to enter in shell from the first discharge hole, be located on partition, at this point, the second discharge hole, which is in, closes shape
State, material continue to be stirred under the action of the second mixing mechanism, after stirring 60-180min, pass through the effect of electric pushrod
Adjustable plate is pulled, the second discharge hole and third discharge hole is made to align, material enters in bearing material bucket, and in vibration first motor
It discharges under effect from discharge nozzle.
The sintering processing of the vacuum sintering furnace are as follows: when original state, fire door is in close state, and the first cylinder, which is in, to be received
Contracting state, lower lining mould are in closed state with the interaction of upper cover die under the action of supporting plate, at this point, liner plate top and upper cover die
Spacing between bottom is 0.5-1cm, mixed material is injected into sintering mold by the second feed pipe, after material fills
Vacuum-sintering is carried out, after being sintered 1-2h, continues to shrink the first cylinder, makes to be bonded to each other at the top of liner plate with upper cover die bottom, continue
It is sintered 2-4h；When demoulding processing, the first cylinder is stretched, after lower lining mould is dropped to therewith in the first support plate, supporting plate continues
Operating with the second support plate up to fitting downwards, at this point, supporting plate is separated from each other with lower lining mould, is further turned by motor
It is dynamic to drive screw rod rotation, to keep the first support base mobile to furnace body opening, opening fire door is lifted up by the second cylinder,
Take out product, then reverse operating.
Claims (4)
1. a kind of preparation method of high neutron absorption rate neutron absorption composite material, it is characterized in that, its step are as follows:
(1) 8-40 parts of boron carbide powder, 32-96 parts of Al alloy powder and 0.1-10 parts of light rare earth powder are weighed according to parts by weight；
(2) boron carbide powder, Al alloy powder and light rare earth powder are added in mixed powder equipment and carry out mixing；
(3) it will be added in vacuum sintering furnace through the material of overmulling powder equipment after mixing and be sintered to obtain strip plate；
(4) it is molded after four side wall upper a layer thickness of strip plate are the aluminium alloy layer of 0.05-1cm；
(5) 3-8 passage hot rolling treatment is carried out after being molded, and makes annealing treatment between rolling pass through 450~500 DEG C, senior middle school can be obtained
Sub- absorptivity neutron absorption composite material；
The mixed powder equipment includes shell, and case top is equipped with the first opening, is additionally provided with first support ring of circle on shell, and first
The L-shaped structure in support ring section, in the first open outside, the first support ring is equipped with that section is n shape structure for wrapping setting
Two support caps, the second support cap are equipped with feeding mechanism；It is equipped with partition in shell, is equipped with mixing above partition and fills
It sets, be equipped with stock supporting mechanism below partition, the feeding mechanism includes sequentially connected feed hopper, sub-feed tube and the first charging
Pipe, the first feed pipe are cirque structure, and sub-feed tube connects the first feed pipe and feed hopper, and the first feed pipe passes through the second bearing
It covers and is fixed on the second support cap；
The mixing device includes mixing tank, the first mixing mechanism, the second mixing mechanism, and the mixing tank is the cylinder of top end opening
Body structure, the mixing tank is interior to be equipped with stock guide, and the stock guide is spherical cap structure, and the open end of mixing tank is fixing end, mixes
The not opening end of charging basket is mixing end, and fixing end is cylindrical structure, mixing end is truncated cone-shaped structure, and the diameter at mixing end is from upper
It is gradually reduced under and, the mixing end of mixing tank is equipped with several first discharge holes, and the fixing end of mixing tank is equipped with a circle first
Clamping bump and second clamping bump of circle, the first clamping bump are slidably disposed on the first opening inner wall, the second clamping
Convex block is slidably disposed on the first support ring inner wall, is fixed on mixing tank rotatably on shell, on the mixing tank
It is additionally provided with first rack gear of circle, the first rack gear is located at the first support ring and shell surrounds in the cavity formed, on the second support cap
Equipped with first motor, first motor one end passes through the second support cap and the first support ring, the first driving gear being arranged thereon and
First rack gear is meshed；First mixing mechanism includes main shaft, stirring rod, the first paddle group and the second paddle group, master
Axis one end is fixed on the second support cap, the other end is connected by the way that axle sleeve is rotatable with mixing tank bottom, the number of stirring rod
Amount is 6,8 or 10, and uniform circumferentially fixed on main shaft, the first paddle group and the second paddle group are arranged alternately
On stirring rod, the first paddle group is made of 3 paddles, and the second paddle group is made of 2 paddles, the first paddle
The paddle of group and the second paddle group is staggered, and paddle is inclined to be arranged on stirring rod, the paddle and stirring
Angle a between bar is 60-70 °；Second mixing mechanism includes the first mixing for being fixed on mixing tank outer wall from top to bottom
Board group, the second mixing board group and third mixing board group, the first mixing board group, the second mixing board group and third mixing board group are by phase
Mixing board group with quantity is at the mixing plate between two neighboring mixing board group is staggered, and the mixing plate includes connecting plate
And agitating plate, connecting plate is inclined to be fixed on mixing tank outer wall, and agitating plate is vertical to be fixed on connecting plate；
The stock supporting mechanism includes bearing material bucket and vibration first motor, and the setting of bearing material bucket holds hopper bottom in vibration first motor
Portion is equipped with the guide platform being obliquely installed, and bearing material bucket is equipped with discharge nozzle, and discharge nozzle is located at the least significant end of guide platform；
The partition includes side baffle, bottom plate and adjustable plate, and side baffle is inclined to be fixed on bottom plate periphery, on the bottom plate
Equipped with several second discharge holes, adjustable plate one end is fixed in the adjusting cavity of bottom plate by spring, the other end and electric pushrod phase
Connection, adjustable plate are equipped with third discharge hole, and the size of third discharge hole, distribution are identical as the second discharge hole；It is pushed away by electronic
Bar makes adjustable plate movement, the opening and closing to adjust the second discharge hole.
2. a kind of preparation method of high neutron absorption rate neutron absorption composite material as described in claim 1, it is characterized in that, institute
Stating vacuum sintering furnace includes furnace body, sintering mold, demoulding mechanism；The sidewall of the furnace body is equipped with heating region, the sintering mould
Tool includes upper cover die and lower lining mould, and the upper cover die is the rectangular parallelepiped structure of bottom opening, and upper cover die is fixed by first support
At the top of furnace body inner chamber body, the lower lining mould includes liner plate and seben, and seben is fixed on above liner plate, seben and upper cover die
Bottom open end is mutually agreed with, and liner plate bottom is equipped with the first spacing block set, and the first spacing block set two sides are respectively equipped with one second limit
Position groove, the upper cover die are equipped with the second feed pipe；
The demoulding mechanism includes supporting plate, the first support plate, the second support plate, and the quantity of supporting plate is two, two supporting plate difference
The two sides of lower lining mould are set, and each supporting plate is fixed in furnace body inner chamber body by two the first cylinders, and supporting plate is equipped with auxiliary support
Plate, the auxiliary supporting plate on two supporting plates are oppositely arranged, and lower lining mould is arranged on auxiliary supporting plate, and auxiliary supporting plate is equipped with the second limit card block,
Second limit card block is plug-type to be arranged in the second limiting groove, and the bottom of furnace body inner chamber body is arranged in first support plate
Portion, the first support plate are equipped with the first limiting groove, the position of the first limiting groove, size and the first spacing block set position,
Size is corresponding, and the height H1 of the first support plate is greater than the height H2 of supporting plate, and the quantity of second support plate is two, respectively
The two sides of first support plate are set, and the position of the second support plate and the position of supporting plate are corresponding, and the height H3 of the liner plate is big
In 2cm；
First support plate bottom is set there are two sliding block, and sliding block is slidably disposed in the sliding slot of inboard wall of furnace body, and first
Fagging bottom sets that there are two sections as the first regulating tank of semicircular structure, and the inner wall of the first regulating tank is equipped with internal screw thread, furnace
The bottom of internal wall sets that there are two sections as the second regulating tank of semicircular structure accordingly, and the inner wall of the second regulating tank is smooth
Structure, the first regulating tank and the second regulating tank are mutually spliced to form the adjusting channel of circular configuration, wear equipped with externally threaded screw rod
It overregulates channel to be rotatably fixed between sidewall of the furnace body and fixing bearing, the interior spiral shell of the external screw thread of screw rod and the first regulating tank
Line is meshed, and one end that screw rod passes through furnace body is equipped with driven gear, and the second driving gear of driven gear and the second motor is mutually nibbled
It closes；
The internal chamber wall of the furnace body is rectangular parallelepiped structure, and the open end of furnace body is located on sidewall of the furnace body, and fire door and furnace body sliding connect
It connects, second connecting rod is equipped at the top of fire door, second connecting rod is connected with the second cylinder being fixed at the top of furnace body, the control of the second cylinder
The folding of fire door.
3. a kind of preparation method of high neutron absorption rate neutron absorption composite material as described in claim 1, it is characterized in that, institute
State the mixing method of mixed powder equipment are as follows: material through feeding mechanism disperse enter mixing tank in, first motor drive mixing tank with
The speed of 30-70r/min is rotated, and the first mixing mechanism does not rotate, material under the action of the first mixing mechanism with
It is stirred mixing, after stirring 30-80min, the velocity of rotation of mixing tank is risen into 60-200r/min, the object tentatively mixed
Material enters in shell from the first discharge hole, is located on partition, at this point, the second discharge hole is in close state, material is the
Continue to be stirred under the action of two mixing mechanisms, after stirring 60-180min, adjustable plate pulled by the effect of electric pushrod,
The second discharge hole and third discharge hole is set to align, material enters in bearing material bucket, and from out under the action of vibrating first motor
Expects pipe discharging.
4. a kind of preparation method of high neutron absorption rate neutron absorption composite material as described in claim 1, it is characterized in that, institute
State the sintering processing of vacuum sintering furnace are as follows: when original state, fire door is in close state, and the first cylinder is in contraction state, under
It serves as a contrast mould and is in closed state with the interaction of upper cover die under the action of supporting plate, at this point, at the top of liner plate between upper cover die bottom
Spacing be 0.5-1cm, mixed material is injected into sintering mold by the second feed pipe, material carries out vacuum after filling
Sintering after being sintered 1-2h, continues to shrink the first cylinder, makes to be bonded to each other at the top of liner plate with upper cover die bottom, continues to be sintered 2-4h
?；When demoulding processing, the first cylinder is stretched, after lower lining mould is dropped to therewith in the first support plate, supporting plate continues operating downwards
Until fitting with the second support plate, at this point, supporting plate is separated from each other with lower lining mould, silk is further driven by the rotation of motor
Bar rotation is lifted up opening fire door by the second cylinder, takes out and produce to keep the first support base mobile to furnace body opening
Product, then reverse operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191911.0A CN107008894B (en) | 2017-03-28 | 2017-03-28 | A kind of preparation method of high neutron absorption rate neutron absorption composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191911.0A CN107008894B (en) | 2017-03-28 | 2017-03-28 | A kind of preparation method of high neutron absorption rate neutron absorption composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107008894A CN107008894A (en) | 2017-08-04 |
| CN107008894B true CN107008894B (en) | 2019-03-22 |
Family
ID=59445965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710191911.0A Active CN107008894B (en) | 2017-03-28 | 2017-03-28 | A kind of preparation method of high neutron absorption rate neutron absorption composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107008894B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930440A (en) * | 2017-12-27 | 2018-04-20 | 郑州搜趣信息技术有限公司 | A kind of additive mixing apparatus for Feed Manufacturing processing |
| CN109357531B (en) * | 2018-10-09 | 2019-10-25 | 牡丹江师范学院 | A kind of agglomerating plant and its sintering method for cubic boron nitride sintered body |
| CN109797308A (en) * | 2019-01-30 | 2019-05-24 | 中广核工程有限公司 | A kind of new oxide dispersion-strengtherning neutron absorber material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045916A (en) * | 2012-12-26 | 2013-04-17 | 四川材料与工艺研究所 | Composite shielding material and preparation method thereof |
| JP2013241675A (en) * | 2013-04-11 | 2013-12-05 | Nippon Light Metal Co Ltd | Method of manufacturing metal-based composite material |
| CN104263982A (en) * | 2014-09-17 | 2015-01-07 | 太原理工大学 | Preparation method of radiation-proof samarium-tungsten-aluminum alloy shielding composite material |
| CN105671373A (en) * | 2016-03-11 | 2016-06-15 | 江苏海龙核科技股份有限公司 | Preparing method for neutron absorption plate with high B4C content |
-
2017
- 2017-03-28 CN CN201710191911.0A patent/CN107008894B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045916A (en) * | 2012-12-26 | 2013-04-17 | 四川材料与工艺研究所 | Composite shielding material and preparation method thereof |
| JP2013241675A (en) * | 2013-04-11 | 2013-12-05 | Nippon Light Metal Co Ltd | Method of manufacturing metal-based composite material |
| CN104263982A (en) * | 2014-09-17 | 2015-01-07 | 太原理工大学 | Preparation method of radiation-proof samarium-tungsten-aluminum alloy shielding composite material |
| CN105671373A (en) * | 2016-03-11 | 2016-06-15 | 江苏海龙核科技股份有限公司 | Preparing method for neutron absorption plate with high B4C content |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107008894A (en) | 2017-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107008894B (en) | A kind of preparation method of high neutron absorption rate neutron absorption composite material | |
| KR101777977B1 (en) | Metal Powders Drying Apparatus for Manufacturing of Secondary Cell Battery And Drying Method Theeof | |
| CN206416320U (en) | A kind of concrete central mix plant | |
| CN207772093U (en) | Heating cast blender | |
| CN212142314U (en) | Proportioning bins preheating device is used in sodium silicate production | |
| CN103863590A (en) | Dry mortar packing machine | |
| CN107621146A (en) | A kind of air bag push type food processing raw material stoving device | |
| CN104457218B (en) | A kind of drum-type protective atmosphere roaster | |
| CN202618178U (en) | Tea leaf rolling device capable of continuous material feeding and discharging | |
| CN108889391A (en) | A kind of silicon metal composite negative pole material grinding device and its breaking method | |
| CN209068971U (en) | Rotary kiln is fed driving means and rotary kiln device | |
| CN207187610U (en) | A kind of mass raw material kneading device | |
| CN206762808U (en) | A kind of mixed powder equipment of neutron absorber plate production | |
| CN206652442U (en) | A kind of buildings waterproof construction paint mixing arrangement | |
| CN114715899A (en) | Equipment and method for producing industrial silicon by utilizing solid waste silicon mud and industrial silicon waste powder | |
| CN213221776U (en) | Be used for grinding aid production mixing stirring jar device | |
| CN105689053B (en) | A kind of raw material reducing mechanism for single crystal growing furnace | |
| CN108940534B (en) | Silicon metal composite anode material grinding device and grinding method thereof | |
| CN107335368A (en) | A kind of mass raw material kneading device | |
| CN206408160U (en) | The distribution device of ring rotation bed | |
| CN203572222U (en) | Automatic material distributing device for sintering cup | |
| CN105983359A (en) | Pesticide production agitator tank with improved structure | |
| CN205650131U (en) | A forced mixer for refining production of destarch powder | |
| CN206526798U (en) | The pill tank of replaceable agitating paddle | |
| CN111036164A (en) | Hydrogen fluoride resistant spray reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |