CN114699980B - Preparation process of ceramic composite material - Google Patents
Preparation process of ceramic composite material Download PDFInfo
- Publication number
- CN114699980B CN114699980B CN202210379733.5A CN202210379733A CN114699980B CN 114699980 B CN114699980 B CN 114699980B CN 202210379733 A CN202210379733 A CN 202210379733A CN 114699980 B CN114699980 B CN 114699980B
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- Prior art keywords
- material leakage
- fixedly connected
- leakage plate
- mixing
- block
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- 239000000919 ceramic Substances 0.000 title claims abstract description 27
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 77
- 239000000843 powder Substances 0.000 claims abstract description 62
- 229910052751 metal Inorganic materials 0.000 claims abstract description 54
- 239000002184 metal Substances 0.000 claims abstract description 54
- 238000003756 stirring Methods 0.000 claims abstract description 53
- 238000002156 mixing Methods 0.000 claims abstract description 40
- 238000005507 spraying Methods 0.000 claims abstract description 19
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 12
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 12
- 241001330002 Bambuseae Species 0.000 claims description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 12
- 239000011425 bamboo Substances 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 12
- 238000013329 compounding Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000010009 beating Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000007599 discharging Methods 0.000 description 7
- 239000004927 clay Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a preparation process of a ceramic composite material in the technical field of preparation of ceramic composite materials, which comprises a mixing cylinder, wherein the upper end of the mixing cylinder is fixedly connected with an intermittent motor, the output end of the intermittent motor penetrates through and extends to the inside of the mixing cylinder and is fixedly connected with a telescopic rod, the lower end of the telescopic rod is fixedly connected with a fixing frame, the lower end of the fixing frame is rotationally connected with a spraying cylinder, the lower end of the spraying cylinder is slidingly connected with a baffle block, the lower end of the baffle block is rotationally connected with a pushing block, and a first spring for resetting the pushing block is fixedly connected with the pushing block; in the rotation process of the stirring sheet along with the mounting block, the stirring sheet is hit on the cylinder wall of the material spraying cylinder, so that the metal powder in the material spraying cylinder slides out, the metal powder in the material spraying cylinder is ensured not to be bonded on the inner wall of the material spraying cylinder, the metal powder can slide out from the material spraying cylinder, and the condition of clamping the metal powder cannot occur.
Description
Technical Field
The invention relates to the technical field of preparation of ceramic composite materials, in particular to a preparation process of a ceramic composite material.
Background
Cermets are heterogeneous composite materials composed of a ceramic and a bonding metal. The ceramic is mainly high temperature resistant oxide such as alumina and zirconia or solid solution thereof, and the bonding metal is mainly high melting point metal such as chromium, molybdenum, tungsten, titanium and the like. The ceramic and the bonding metal are ground and mixed uniformly, and sintered in an inert atmosphere after molding, so that the metal ceramic can be prepared. The metal ceramic has the advantages of metal and ceramic, has small density, high hardness, wear resistance and good thermal conductivity, can not be embrittled due to quenching or shock heating, and is widely applied to the shells of rockets, missiles, supersonic aircrafts, flame nozzles of combustion chambers and the like.
In the existing metal ceramic, the clay blocks for producing the ceramic are required to be made into powder and then mixed with metal powder, but in the mixing process, the clay blocks can be contained in the clay block powder, so that in the process of later manufacturing into ceramic blanks, the clay blocks are blocked in the ceramic blanks, the unqualified products of the ceramic blanks are increased, meanwhile, most of the metal powder is required to be added at one time in the process of adding the existing metal powder into the clay powder, the metal powder is accumulated at one place, the mixing cannot be uniformly carried out in a short time, the stirring time is increased, and the working efficiency cannot be improved.
Based on the above, the invention designs a preparation process of the ceramic composite material to solve the above problems.
Disclosure of Invention
The invention aims to provide a preparation process of a ceramic composite material, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: a preparation process of a ceramic composite material is characterized in that; the preparation process comprises the following steps:
step one: placing soil and metal powder into a mixing device;
step two: starting a mixing device, crushing soil, and mixing the soil layer screen with metal powder;
step three: and receiving and transferring the mud powder and the metal powder which are subjected to screening and mixing.
Wherein step one, step two and step three in the compounding device include the compounding section of thick bamboo, the upper end fixedly connected with intermittent type motor of compounding section of thick bamboo, the output of intermittent type motor runs through and extends to the inside fixedly connected with telescopic link of compounding section of thick bamboo, telescopic link lower extreme fixedly connected with mount, the lower extreme of mount rotates and is connected with the material spraying section of thick bamboo, the lower extreme sliding connection who spills the material spraying section of thick bamboo has a fender piece, the lower extreme of fender piece rotates and is connected with the ejector pad, fixedly connected with is used for its first spring that resets on the ejector pad, the lower extreme of ejector pad rotates and is connected with the fixed block, the spout has been seted up on the fixed block, the lower extreme fixedly connected with first material leakage plate of fixed block, the inner wall fixedly connected with of first material leakage plate and compounding section of thick bamboo, sliding connection has the second material leakage plate on the spout, the tip of mount all is provided with the stirring and beats the subassembly.
As a further scheme of the invention, the stirring beating assembly comprises a stirring rod, the upper end of the stirring rod is fixedly connected to the fixing frame, the lower end of the stirring rod is fixedly connected to the second material leakage plate, the stirring rod is fixedly connected with a mounting block, and the mounting block is fixedly connected with a stirring sheet.
As a further scheme of the invention, the lower end of the mixing cylinder is fixedly connected with supporting frames distributed in a circumferential array, and supporting rods are fixedly connected between each supporting frame.
As a further scheme of the invention, the second material leakage plate is provided with a first material leakage hole, the first material leakage plate is provided with a second material leakage hole, and the diameter of the first material leakage hole is larger than that of the second material leakage hole.
As a further aspect of the present invention, there are a plurality of the mounting blocks, and they are vertically downwardly arrayed on the stirring rod.
As a further aspect of the present invention, the stirring sheet is made of an elastic metal sheet.
As a further scheme of the invention, the lower end of the sprinkling cylinder is provided with a material leakage opening.
Compared with the prior art, the invention has the beneficial effects that:
1. through the second leak flitch along the vertical groove whereabouts of spout, carry out vertical crushing with the mud piece on the first leak flitch, then start intermittent type motor again, the second leak flitch can carry out horizontal rolling to the mud piece along with the chute of spout upwards slip in-process, makes the abundant rolling of mud piece in different directions, can also be simultaneously to the metal powder and the mud powder further mixing that falls on the first leak flitch.
2. The telescopic link is stretched to drive when leaking the flitch whereabouts through the second and spill feed cylinder, fender piece and ejector pad whereabouts, the fixed block downward pulling ejector pad makes the ejector pad with fender piece downward pulling, then metal powder spills through the opening of spilling the feed cylinder lower extreme and mixes under puddler, installation piece and stirring of stirring piece with earth, make metal powder can a small amount of many times mix with mud powder, work efficiency has been improved, the disposable pouring metal powder of having avoided, the metal powder is piled up in one department, the unable misce bene of short time, make stirring time increase.
3. In the rotation process of the stirring sheet along with the mounting block, the stirring sheet is hit on the cylinder wall of the material spraying cylinder, so that the metal powder in the material spraying cylinder slides out, the metal powder in the material spraying cylinder is ensured not to be bonded on the inner wall of the material spraying cylinder, the metal powder can slide out from the material spraying cylinder, and the condition of clamping the metal powder cannot occur.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic sectional view of a mixing drum according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of a mixing cylinder according to the invention;
FIG. 4 is a schematic view of a chute according to the present invention;
FIG. 5 is a schematic view of the structure of the spraying cylinder, the baffle block and the pushing block.
In the drawings, the list of components represented by the various numbers is as follows:
mixing cylinder 1, intermittent motor 2, telescopic link 3, mount 4, spill feed cylinder 5, fender piece 6, ejector pad 7, fixed block 8, spout 13, first hourglass flitch 9, second hourglass flitch 10, puddler 11, installation piece 12, stirring piece 16, support frame 14, bracing piece 15, first hourglass material hole 17, second hourglass material hole 18, first spring 19.
Description of the embodiments
Referring to fig. 1 to 5, the present invention provides a process for preparing a ceramic composite material, which is characterized in that; the preparation process comprises the following steps:
step one: placing soil and metal powder into a mixing device;
step two: starting a mixing device, crushing soil, and then sieving a soil layer and mixing the soil layer with metal powder;
step three: and receiving and transferring the mud powder and the metal powder which are subjected to screening and mixing.
Wherein step one, step two and step three in the compounding device include compounding section of thick bamboo 1, the upper end fixedly connected with intermittent type motor 2 of compounding section of thick bamboo 1, the output of intermittent type motor 2 runs through and extends to the inside fixedly connected with telescopic link 3 of compounding section of thick bamboo 1, telescopic link 3 lower extreme fixedly connected with mount 4, the lower extreme rotation of mount 4 is connected with and spills feed cylinder 5, the lower extreme sliding connection who spills feed cylinder 5 has a baffle piece 6, the lower extreme rotation of baffle piece 6 is connected with ejector pad 7, fixedly connected with is used for its first spring 19 that resets on the ejector pad 7, the lower extreme rotation of ejector pad 7 is connected with fixed block 8, spout 13 has been seted up on the fixed block 8, the lower extreme fixedly connected with first leak source 9 of fixed block 8, the inner wall fixedly connected with of first leak source 9 and compounding section of thick bamboo 1, sliding connection has second leak source 10 on the spout 13, the tip of mount 4 all is provided with the stirring and beats the subassembly.
The stirring beating assembly comprises a stirring rod 11, the upper end of the stirring rod 11 is fixedly connected to the fixing frame 4, the lower end of the stirring rod 11 is fixedly connected to the second material leakage plate 10, the stirring rod 11 is fixedly connected with a mounting block 12, and the mounting block 12 is fixedly connected with a stirring sheet 16.
In the actual use process of the invention, a certain amount of mud block powder for manufacturing ceramics is poured into the mixing cylinder 1, the intermittent motor 2 is started to drive the telescopic rod 3 to rotate, the telescopic rod 3 drives the fixed frame 4 to rotate, the fixed frame 4 drives the stirring rod 11 to drive the plurality of mounting blocks 12 and the stirring pieces 16 to scatter mud blocks in the mixing cylinder 1, small mud blocks and mud powder fall on the first material leakage plate 9, mud powder leaks through the first material leakage plate 9, mud blocks are blocked by the first material leakage plate 9, meanwhile, the stirring rod 11 drives the second material leakage plate 10 to rotate, the second material leakage plate 10 moves up to the highest point of the sliding groove 13 along the sliding groove 13, then the intermittent motor 2 stops moving, the second material leakage plate 10 falls down along the vertical groove of the sliding groove 13, the mud blocks on the first material leakage plate 9 are crushed, meanwhile, the telescopic rod 3 is stretched to drive the material spraying cylinder 5, the material blocking block 6 and the pushing block 7 to fall when the second material leakage plate 10 falls, the fixed block 8 downwards pulls the pushing block 7, the material blocking block 6 is downwards pulled by the pushing block 7, then metal powder leaks out through the material leakage opening at the lower end of the material spraying cylinder 5 and is mixed with soil under the stirring of the stirring rod 11, the mounting block 12 and the stirring sheet 16, so that the metal powder can be mixed with the mud powder a small amount of times, the working efficiency is improved, the metal powder is prevented from being poured once, the metal powder is accumulated at one place, the mixing cannot be uniformly carried out in a short time, and the stirring time is prolonged. Then, the intermittent motor 2 is started again, the second material leakage plate 10 slides upwards along the chute of the chute 13 to roll next, the second material leakage plate 10 falls downwards along the vertical chute of the chute 13 to vertically crush the mud blocks on the first material leakage plate 9, then the intermittent motor 2 is started again, the second material leakage plate 10 rolls the mud blocks transversely along the chute of the chute 13 in the upward sliding process, so that the mud blocks are fully rolled in different directions, and meanwhile, the metal powder and the mud powder falling on the first material leakage plate 9 can be further mixed.
Through the rotation in-process of stirring piece 16 along with installation piece 12, stirring piece 16 strikes on the section of thick bamboo wall of spilling feed cylinder 5, makes the metal powder roll-off in spilling feed cylinder 5, has guaranteed that the metal powder in spilling feed cylinder 5 can not bond on the inner wall of spilling feed cylinder 5, makes the metal powder can follow and spill feed cylinder 5 in, can not appear blocking the condition emergence of metal powder.
As a further scheme of the invention, the lower end of the mixing cylinder 1 is fixedly connected with the supporting frames 14 distributed in a circumferential array, and a supporting rod 15 is fixedly connected between each supporting frame 14 and is mainly used for increasing the stability of the supporting frames 14.
As a further scheme of the invention, the second material leakage plate 10 is provided with a first material leakage hole 17, the first material leakage plate 9 is provided with a second material leakage hole 18, the diameter of the first material leakage hole 17 is larger than that of the second material leakage hole 18, and when the device works, the second material leakage hole 18 can block mud blocks falling from the first material leakage hole 17.
As a further scheme of the invention, a plurality of mounting blocks 12 are vertically downwards arranged on the stirring rod 11, so that uniform stirring is ensured, the stirring sheet 16 can knock the sprinkling cylinder 5 in all directions in the stirring process, metal powder in the sprinkling cylinder 5 can completely flow out, and the metal powder cannot be attached to the cylinder wall of the sprinkling cylinder 5.
As a further aspect of the present invention, the stirring blade 16 is made of an elastic metal sheet.
As a further scheme of the invention, the lower end of the sprinkling cylinder 5 is provided with a material leakage opening.
Working principle: pouring quantitative ceramic-making clod powder into a mixing drum 1, starting an intermittent motor 2 to drive a telescopic rod 3 to rotate, enabling the telescopic rod 3 to drive a fixed frame 4 to rotate, enabling a stirring rod 11 to drive a plurality of mounting blocks 12 and stirring sheets 16 to scatter the clod in the mixing drum 1, enabling small clod and clod powder to fall on a first discharging plate 9, enabling the clod to leak down through the first discharging plate 9, enabling the clod to be blocked by the first discharging plate 9, enabling the stirring rod 11 to drive a second discharging plate 10 to rotate, enabling the second discharging plate 10 to move up to the highest point of a sliding groove 13 along the sliding groove 13, enabling the intermittent motor 2 to stop moving, enabling the second discharging plate 10 to fall down along the vertical groove of the sliding groove 13, enabling the clod on the first discharging plate 9 to be crushed, enabling the telescopic rod 3 to be stretched to drive the charging drum 5, the blocking block 6 and a pushing block 7 to fall down, enabling the fixing block 8 to pull the pushing block 7 down, enabling the pushing block 7 to pull down, enabling the metal powder to pass through the opening of the charging block 5 and the pushing block 7 to fall down, enabling the metal powder to be evenly mixed with the metal powder to fall down at the position of the opening of the mixing drum 16, enabling the mixing efficiency of the metal powder to be improved, and the mixing drum can not be achieved in a short time, and the mixing efficiency of the metal powder can be improved. Then, the intermittent motor 2 is started again, the second material leakage plate 10 slides upwards along the chute of the chute 13 to roll next, the second material leakage plate 10 falls downwards along the vertical chute of the chute 13 to vertically crush the mud blocks on the first material leakage plate 9, then the intermittent motor 2 is started again, the second material leakage plate 10 rolls the mud blocks transversely along the chute of the chute 13 in the upward sliding process, so that the mud blocks are fully rolled in different directions, and meanwhile, the metal powder and the mud powder falling on the first material leakage plate 9 can be further mixed.
Claims (5)
1. A preparation process of a ceramic composite material is characterized in that; the preparation process comprises the following steps:
step one: placing soil and metal powder into a mixing device;
step two: starting a mixing device, crushing soil, and then sieving a soil layer and mixing the soil layer with metal powder;
step three: the mud powder and the metal powder which are screened and mixed are received and transferred away;
wherein the mixing device in step one, step two and step three includes compounding section of thick bamboo (1), its characterized in that: the automatic mixing device comprises a mixing drum (1), wherein the upper end of the mixing drum (1) is fixedly connected with an intermittent motor (2), the output end of the intermittent motor (2) penetrates through and extends to the inside of the mixing drum (1) to be fixedly connected with a telescopic rod (3), the lower end of the telescopic rod (3) is fixedly connected with a fixing frame (4), the lower end of the fixing frame (4) is rotationally connected with a spraying drum (5), the lower end of the spraying drum (5) is slidingly connected with a baffle block (6), the lower end of the baffle block (6) is rotationally connected with a pushing block (7), the pushing block (7) is fixedly connected with a first spring (19) for resetting the pushing block, the lower end of the pushing block (7) is rotationally connected with a fixed block (8), a sliding groove (13) is formed in the fixed block (8), the lower end of the fixed block (8) is fixedly connected with a first material leakage plate (9), the first material leakage plate (9) is fixedly connected with the inner wall of the mixing drum (1), the sliding groove (13) is slidingly connected with a second material leakage plate (10), and the end part of the fixed frame (4) is provided with a beating component;
pouring quantitative ceramic-making mud block powder into a mixing cylinder (1), starting an intermittent motor (2) to drive a telescopic rod (3) to rotate, driving a fixing frame (4) to rotate by the telescopic rod (3), driving a stirring rod (11) by the fixing frame (4) to drive a plurality of mounting blocks (12) and stirring sheets (16) to scatter mud blocks in the mixing cylinder (1), enabling small mud blocks and mud powder to fall on a first material leakage plate (9), enabling the mud powder to leak down through the first material leakage plate (9), blocking the mud blocks by the first material leakage plate (9), enabling the stirring rod (11) to drive a second material leakage plate (10) to rotate, enabling the second material leakage plate (10) to move up to the highest point of the sliding groove (13) along the sliding groove (13), stopping moving by the intermittent motor (2), enabling the second material leakage plate (10) to fall down along the vertical groove of the sliding groove (13), and grinding the mud blocks on the first material leakage plate (9);
then the intermittent motor (2) is started again, and the second material leakage plate (10) slides upwards along with the chute of the chute (13) to carry out the next rolling;
the stirring beating assembly comprises a stirring rod (11), the upper end of the stirring rod (11) is fixedly connected to a fixing frame (4), the lower end of the stirring rod (11) is fixedly connected to a second material leakage plate (10), a mounting block (12) is fixedly connected to the stirring rod (11), and a stirring sheet (16) is fixedly connected to the mounting block (12);
the lower end of the mixing barrel (1) is fixedly connected with support frames (14) distributed in a circumferential array, and support rods (15) are fixedly connected between each support frame (14).
2. The process for preparing a ceramic composite according to claim 1, wherein: the second material leakage plate (10) is provided with a first material leakage hole (17), the first material leakage plate (9) is provided with a second material leakage hole (18), and the diameter of the first material leakage hole (17) is larger than that of the second material leakage hole (18).
3. The process for preparing a ceramic composite according to claim 1, wherein: the plurality of mounting blocks (12) are arranged on the stirring rod (11) in a vertically downward array.
4. The process for preparing a ceramic composite according to claim 1, wherein: the stirring sheet (16) is made of elastic metal sheets.
5. The process for preparing a ceramic composite according to claim 1, wherein: the lower end of the sprinkling cylinder (5) is provided with a material leakage opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379733.5A CN114699980B (en) | 2022-04-12 | 2022-04-12 | Preparation process of ceramic composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379733.5A CN114699980B (en) | 2022-04-12 | 2022-04-12 | Preparation process of ceramic composite material |
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| Publication Number | Publication Date |
|---|---|
| CN114699980A CN114699980A (en) | 2022-07-05 |
| CN114699980B true CN114699980B (en) | 2024-01-12 |
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| CN202210379733.5A Active CN114699980B (en) | 2022-04-12 | 2022-04-12 | Preparation process of ceramic composite material |
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| CN212999999U (en) * | 2020-08-05 | 2021-04-20 | 山东维宏经贸有限公司 | Synthetic sodium carboxymethylcellulose reation kettle |
| CN213918921U (en) * | 2020-10-16 | 2021-08-10 | 徐承 | Concrete mixing device |
| CN213915446U (en) * | 2020-10-31 | 2021-08-10 | 安徽静东生态科技有限公司 | Soil is administered and is added medicine mixing arrangement with soil breakage |
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