CN114436659A - Silicon carbide ceramic material and preparation method thereof - Google Patents
Silicon carbide ceramic material and preparation method thereof Download PDFInfo
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- CN114436659A CN114436659A CN202210202925.9A CN202210202925A CN114436659A CN 114436659 A CN114436659 A CN 114436659A CN 202210202925 A CN202210202925 A CN 202210202925A CN 114436659 A CN114436659 A CN 114436659A
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Abstract
The invention belongs to the technical field of silicon carbide ceramic, and particularly relates to a silicon carbide ceramic material and a preparation method thereof, wherein the silicon carbide ceramic material comprises the following steps: 30 parts of sand, 50 parts of clay, 30 parts of jade powder, 10 parts of zircon and 3 parts of silicon carbide, wherein a rotating rod is fixedly connected to the output end of the motor; a plurality of stirring rods are fixedly connected to two ends of the rotating rod; the bull stick is driven the puddler and is rotated when rotating for the puddler stirring raw materials filters the bottom of edulcoration section of thick bamboo through pocket screen frame with the raw materials, and the great impurity of volume is filtered in the inside of pocket screen frame, through the continuous stirring of puddler, improves the filter effect to the raw materials.
Description
Technical Field
The invention relates to the technical field of silicon carbide ceramic, in particular to a silicon carbide ceramic material and a preparation method thereof.
Background
Silicon carbide ceramic materials not only have excellent normal temperature mechanical properties, such as higher bending strength, excellent oxidation resistance, good corrosion resistance, high abrasion resistance and low friction coefficient, but also have superior high temperature mechanical properties (strength, creep resistance, etc.) among known ceramic materials.
After the raw materials are collected, a large amount of redundant impurities are doped in the raw materials, and the quality of a finished product of the silicon carbide ceramic material is influenced in the subsequent production process; therefore, a silicon carbide ceramic material and a preparation method thereof are provided to solve the above problems.
Disclosure of Invention
The invention provides a silicon carbide ceramic material and a preparation method thereof, aiming at making up for the defects of the prior art and solving the problem that after the raw materials are collected, a large amount of redundant impurities are doped in the silicon carbide ceramic material, and the quality of the finished product of the silicon carbide ceramic material is influenced in the subsequent production process.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a silicon carbide ceramic material, which consists of the following raw materials:
preferably, the silicon carbide comprises the following raw materials:
3 portions of alumina
3 portions of zirconium oxide
And 5 parts of silicon nitride.
A preparation method of a silicon carbide ceramic material is suitable for the silicon carbide ceramic material; the preparation method comprises the following steps:
s1, grinding: mixing and grinding the formula according to a certain proportion to form powder;
s2, putting the raw materials of various formulas into an impurity removal cylinder of an impurity removal device to remove redundant impurities and then obtaining clean raw materials;
s3, mixing: adding water into the filtered powder grinding powder into a stirring barrel for stirring;
s4, molding: the stirred slurry material is manufactured into a specific shape.
S5, sintering: and putting the molded embryos into a baking furnace, orderly placing the molded embryos, and then sintering the molded embryos at a high temperature to obtain the molded silicon carbide ceramic material.
Preferably, the impurity removing device provided in the impurity removing cylinder comprises an impurity removing cylinder; a feeding pipe is arranged at the top of the impurity removing barrel; a discharge pipe is arranged at the bottom of the impurity removing cylinder; the inner side wall of the impurity removing barrel is connected with a supporting plate in a sliding manner; the end part of the supporting plate is fixedly connected with a net frame; a fixed box is fixedly connected to the top of the impurity removing barrel; the inner side wall of the fixed box is fixedly connected with a motor; the output end of the motor is fixedly connected with a rotating rod; a plurality of stirring rods are fixedly connected to two ends of the rotating rod; through the inside of throwing into the pan feeding pipe with the raw materials, then throw into the inside of pocket screen frame through the pan feeding pipe, then open the motor and rotate, drive the bull stick and rotate, drive the puddler when the bull stick rotates and rotate for puddler stirring raw materials filters the bottom of edulcoration section of thick bamboo through pocket screen frame with the raw materials, and the great impurity of volume is filtered in the inside of pocket screen frame, through the continuous stirring of puddler, improves the filter effect to the raw materials.
Preferably, an electric push rod is fixedly connected to the inner side wall of the impurity removing barrel; the bottom of the electric push rod is attached to the top of the supporting plate; a guide plate is fixedly connected to the inner side wall of the impurity removing barrel; the top of the guide plate is fixedly connected with a spring, and the other end of the spring is fixedly connected to the bottom of the supporting plate; promote the backup pad and slide down through opening electric putter, add the spring and produce elasticity, then electric putter when contracting back, the spring produces elasticity and promotes the backup pad and slide up for the pocket screen frame lasts and shakes from top to bottom, improves the filter effect of raw materials, avoids appearing the problem of jam.
Preferably, the inner side wall of the net bag frame is hinged with a guide rod; the side end of the guide rod is fixedly connected with a knocking plate; the end part of the rotating rod is fixedly connected with a convex rod; the top end of the convex rod is fixedly connected with a ball body; when the bull stick when rotating, drive the nose bar and rotate, drive the spheroid when the nose bar rotates and rotate, the spheroid rotates the tip of in-process extrusion striking plate for striking plate strikes to the inside wall of pocket screen frame, makes slight rocking appear in the surface of pocket screen frame, avoids the too much problem that the jam appears of raw materials, and then has improved the screening effect of raw materials.
Preferably, the inner side wall of the feeding pipe is hinged with a sealing plate through a torsion spring; the top of the sealing plate is attached with a push plate; the top of the push plate is fixedly connected with a pressure lever; a magnet pressing plate is fixedly connected to the top of the pressing rod; when needs drop into the raw materials, through pressing the magnetite clamp plate for the magnetite clamp plate downstream drives the depression bar and moves down, and the depression bar promotes the push pedal, makes the push pedal extrusion closing plate rotate downwards and expand, and the raw materials of being convenient for are put in.
Preferably, the inner side wall of the feeding pipe is fixedly connected with a magnet limiting piece and is positioned on the same horizontal plane with the magnet pressing plate; after the transportation finishes, through pulling magnetite clamp plate rebound for magnetite clamp plate and magnetite locating part separation, then the closing plate resets through the torsional spring, plays sealed effect.
Preferably, two ends of the push plate are rotatably connected with pulleys; the top of the sealing plate is fixedly connected with a wear-resistant pad; install the pulley through the both ends at the push pedal, when the push pedal moves down extrusion closing plate, drive the pulley laminating and rotate the extrusion at the tip of closing plate, reduce the friction to the closing plate, avoid appearing the problem of wearing and tearing, through the installation abrasion pad, come to play the effect of protection to pulley and closing plate.
Preferably, the bottom of the impurity removing cylinder is fixedly connected with a plurality of supporting legs; the inner side wall of the impurity removing barrel is fixedly connected with a screen; install the screen cloth through the inside wall at an edulcoration section of thick bamboo, carry out the secondary filter, improve the quality of raw materials, install the landing leg through the bottom at an edulcoration section of thick bamboo, improve the whole firm effect of an edulcoration section of thick bamboo.
The invention has the advantages that:
1. according to the invention, the raw materials are put into the feeding pipe, then are put into the pocket net frame through the feeding pipe, then the motor is started to rotate to drive the rotating rod to rotate, the stirring rod is driven to rotate when the rotating rod rotates, so that the stirring rod stirs the raw materials, the raw materials are filtered to the bottom of the impurity removing barrel through the pocket net frame, impurities with larger volume are filtered in the pocket net frame, and the filtering effect on the raw materials is improved through the continuous stirring of the stirring rod.
2. According to the invention, the electric push rod is opened to push the supporting plate to slide downwards, the spring is added to generate elasticity, and then when the electric push rod retracts, the spring generates elasticity to push the supporting plate to slide upwards, so that the net bag frame continuously shakes up and down, the filtering effect of raw materials is improved, and the problem of blockage is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic diagram of the process of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of FIG. 1 at A;
FIG. 4 is an enlarged view of FIG. 1 at B;
FIG. 5 is a schematic view of the structure of the stirring rod of the present invention.
In the figure: 1. an impurity removal cylinder; 21. a fixing box; 22. a motor; 23. a net frame is wrapped; 24. a rotating rod; 25. a stirring rod; 26. a support plate; 31. an electric push rod; 32. a guide plate; 33. a spring; 41. a guide bar; 42. knocking the plate; 43. a nose bar; 44. a sphere; 51. screening a screen; 52. a discharge pipe; 53. a support leg; 61. a feeding pipe; 62. a sealing plate; 63. a pressure lever; 64. a magnet pressing plate; 65. pushing the plate; 66. a pulley; 67. a magnet stopper; 68. a wear pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The preparation method of the silicon carbide ceramic material comprises the following raw materials in parts by weight: 10 parts of sand, 10 parts of clay, 10 parts of jade powder, 1 part of zircon and 1 part of silicon carbide.
Selecting two blocks of silicon carbide ceramic materials, respectively placing the two blocks of silicon carbide ceramic materials in a corrosive liquid and an oxidation detector for detection, and then recording the corrosion resistance and oxidation resistance duration of the silicon carbide ceramic materials.
Example two
The preparation method of the silicon carbide ceramic material comprises the following raw materials in parts by weight: 15 parts of sand, 25 parts of clay, 15 parts of jade powder, 5 parts of zircon and 2 parts of silicon carbide.
Selecting two blocks of silicon carbide ceramic materials, respectively placing the two blocks of silicon carbide ceramic materials in a corrosive liquid and an oxidation detector for detection, and then recording the corrosion resistance and oxidation resistance duration of the silicon carbide ceramic materials.
EXAMPLE III
The preparation method of the silicon carbide ceramic material comprises the following raw materials in parts by weight: 30 parts of sand, 50 parts of clay, 30 parts of jade powder, 10 parts of zircon and 3 parts of silicon carbide.
Selecting two blocks of silicon carbide ceramic materials, respectively placing the two blocks of silicon carbide ceramic materials in a strong corrosion liquid and an oxidation detector for detection, and then recording the corrosion resistance and oxidation resistance duration of the silicon carbide ceramic materials.
| Length of corrosion resistance | Length of oxidation resistance | |
| Example one | 30 minutes | 30 minutes |
| Example two | 2 hours | 2 hours |
| EXAMPLE III | 1 hour | 1 hour |
According to the above embodiment, the corrosion resistance and the oxidation resistance are the best in the second embodiment.
As shown in fig. 1-5, a method for preparing a silicon carbide ceramic material; the preparation method is suitable for the silicon carbide ceramic material; the preparation method comprises the following steps:
s1, grinding: mixing and grinding the formula according to a certain proportion to form powder;
s2, putting the raw materials of various formulas into an impurity removal cylinder 1 of an impurity removal device to remove redundant impurities and then obtaining clean raw materials;
s3, mixing: adding water into the filtered powder grinding powder into a stirring barrel for stirring;
s4, molding: the stirred slurry material is manufactured into a specific shape.
S5, sintering: and putting the molded embryos into a baking furnace, orderly placing the molded embryos, and then sintering the molded embryos at a high temperature to obtain the molded silicon carbide ceramic material.
The impurity removal device provided in S1 includes an impurity removal barrel 1; a feeding pipe 61 is arranged at the top of the impurity removing barrel 1; a discharge pipe 52 is arranged at the bottom of the impurity removing barrel 1; the inner side wall of the impurity removing barrel 1 is connected with a supporting plate 26 in a sliding way; the end part of the supporting plate 26 is fixedly connected with a net frame 23; the top of the impurity removing barrel 1 is fixedly connected with a fixed box 21; the inner side wall of the fixed box 21 is fixedly connected with a motor 22; the output end of the motor 22 is fixedly connected with a rotating rod 24; a plurality of stirring rods 25 are fixedly connected to two ends of the rotating rod 24; the during operation, after the raw materials is collected and is accomplished, inside can be doped with a large amount of unnecessary impurity, in follow-up production process, can influence the finished product quality of silicon carbide ceramic material, through the inside of throwing into pan feeding pipe 61 with the raw materials, then throw into the inside of pocket screen frame 23 through pan feeding pipe 61, then open motor 22 and rotate, drive bull stick 24 rotates, drive puddler 25 when bull stick 24 rotates and rotate, make puddler 25 stir the raw materials, filter the raw materials bottom of edulcoration section of thick bamboo 1 through pocket screen frame 23, the great impurity of volume is filtered in the inside of pocket screen frame 23, continuous stirring through puddler 25, improve the filter effect to the raw materials.
An electric push rod 31 is fixedly connected to the inner side wall of the impurity removing barrel 1; the bottom of the electric push rod 31 is attached to the top of the support plate 26; a guide plate 32 is fixedly connected to the inner side wall of the impurity removing barrel 1; the top of the guide plate 32 is fixedly connected with a spring 33, and the other end of the spring 33 is fixedly connected with the bottom of the support plate 26; the during operation, at puddler 25 stirring in-process, promote backup pad 26 and slide down through opening electric putter 31, add spring 33 and produce elasticity, then electric putter 31 when retracting, spring 33 produces elasticity and promotes backup pad 26 and slide up for pocket net frame 23 lasts and shakes from top to bottom, improves the filter effect of raw materials, avoids appearing the problem of jam.
The inner side wall of the net bag frame 23 is hinged with a guide rod 41; a knocking plate 42 is fixedly connected to the side end of the guide rod 41; a convex rod 43 is fixedly connected to the end part of the rotating rod 24; the top end of the convex rod 43 is fixedly connected with a ball 44; the during operation, when bull stick 24 rotates, drive protruding pole 43 and rotate, drive spheroid 44 when protruding pole 43 rotates and rotate, spheroid 44 rotates the tip that the board 42 was strikeed in-process extrusion for strike board 42 and strike to the inside wall of pocket screen frame 23, make slight rocking appear in the surface of pocket screen frame 23, avoid the too much problem that the jam appears of raw materials, and then improved the screening effect of raw materials.
The inner side wall of the feeding pipe 61 is hinged with a sealing plate 62 through a torsion spring; a push plate 65 is attached to the top of the sealing plate 62; the top of the push plate 65 is fixedly connected with a pressure lever 63; a magnet pressing plate 64 is fixedly connected to the top of the pressing rod 63; when raw materials are needed to be put into, the magnet pressing plate 64 is pressed to move downwards, the pressing rod 63 is driven to move downwards, the pressing rod 63 pushes the push plate 65, the push plate 65 extrudes the sealing plate 62 to rotate downwards to be unfolded, and the raw materials are convenient to put in.
A magnet limiting piece 67 is fixedly connected to the inner side wall of the feeding pipe 61 and is positioned on the same horizontal plane with the magnet pressing plate 64; during operation, when the magnetite clamp plate 64 slided downwards, the laminating is spacing on the surface of magnetite locating part 67, then when the magnetite clamp plate 64 is close to magnetite locating part 67, produce the adsorption affinity each other and fix, avoid the staff to need press down magnetite clamp plate 64 for a long time and just can let the raw materials carry, after the transportation finishes, through pulling magnetite clamp plate 64 rebound for magnetite clamp plate 64 and magnetite locating part 67 separate, then closing plate 62 resets through the torsional spring, plays sealed effect.
Two ends of the push plate 65 are rotatably connected with pulleys 66; a wear pad 68 is fixedly connected to the top of the sealing plate 62; the during operation, through installing pulley 66 at the both ends of push pedal 65, when push pedal 65 moves down extrusion closing plate 62, drive pulley 66 and laminate and rotate the extrusion at closing plate 62's tip, reduce the friction to closing plate 62, avoid appearing the problem of wearing and tearing, through installation wear pad 68, come pulley 66 and closing plate 62 to play the effect of protection.
The bottom of the impurity removing barrel 1 is fixedly connected with a plurality of supporting legs 53; the inner side wall of the impurity removing barrel 1 is fixedly connected with a screen 51; the during operation is installed screen cloth 51 through the inside wall at an edulcoration section of thick bamboo 1, carries out the secondary filter, improves the quality of raw materials, installs landing leg 53 through the bottom at an edulcoration section of thick bamboo 1, improves the whole firm effect of an edulcoration section of thick bamboo 1.
The working principle is that after the raw materials are collected, a large amount of redundant impurities can be doped in the raw materials, the quality of finished products of silicon carbide ceramic materials can be influenced in the subsequent production process, the raw materials are put into the feeding pipe 61, then the raw materials are put into the pocket net frame 23 through the feeding pipe 61, then the motor 22 is started to rotate, the rotating rod 24 is driven to rotate, the rotating rod 24 drives the stirring rod 25 to rotate when rotating, the stirring rod 25 is enabled to stir the raw materials, the raw materials are filtered to the bottom of the impurity removing barrel 1 through the pocket net frame 23, impurities with large volume are filtered in the pocket net frame 23, and the filtering effect of the raw materials is improved through continuous stirring of the stirring rod 25; in the stirring process of the stirring rod 25, the electric push rod 31 is opened to push the support plate 26 to slide downwards, the spring 33 is added to generate elasticity, and then when the electric push rod 31 retracts, the spring 33 generates elasticity to push the support plate 26 to slide upwards, so that the net bag frame 23 continuously shakes up and down, the filtering effect of the raw materials is improved, and the problem of blockage is avoided; when the rotating rod 24 rotates, the convex rod 43 is driven to rotate, the convex rod 43 drives the ball 44 to rotate, the end part of the knocking plate 42 is extruded in the rotating process of the ball 44, so that the knocking plate 42 knocks the inner side wall of the pocket net frame 23, the surface of the pocket net frame 23 slightly shakes, the problem of blockage caused by excessive raw materials is avoided, and the screening effect of the raw materials is improved; when raw materials need to be put in, the magnet pressing plate 64 is pressed to move downwards, the pressing rod 63 is driven to move downwards, the pressing rod 63 pushes the push plate 65, and the push plate 65 extrudes the sealing plate 62 to rotate downwards to be unfolded, so that the raw materials are conveniently put in; when the magnet pressing plate 64 slides downwards, the magnet pressing plate is attached to the surface of the magnet limiting piece 67 for limiting, then when the magnet pressing plate 64 is close to the magnet limiting piece 67, the magnet pressing plate 64 generates adsorption force mutually to fix, the situation that workers need to press the magnet pressing plate 64 for a long time to convey raw materials is avoided, after transportation is finished, the magnet pressing plate 64 is pulled to move upwards to separate the magnet pressing plate 64 from the magnet limiting piece 67, and then the sealing plate 62 is reset through a torsion spring to achieve a sealing effect; the pulleys 66 are arranged at the two ends of the push plate 65, when the push plate 65 moves downwards to extrude the sealing plate 62, the pulleys 66 are driven to be attached to the end part of the sealing plate 62 to rotate and extrude, so that friction on the sealing plate 62 is reduced, the problem of abrasion is avoided, and the pulleys 66 and the sealing plate 62 are protected by arranging the wear-resistant pad 68; install screen cloth 51 through the inside wall at an edulcoration section of thick bamboo 1, carry out the secondary filter, improve the quality of raw materials, install landing leg 53 through the bottom at an edulcoration section of thick bamboo 1, improve the whole firm effect of an edulcoration section of thick bamboo 1.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. A silicon carbide ceramic material characterized by: the silicon carbide ceramic material is composed of the following raw materials:
2. a silicon carbide ceramic material according to claim 1, wherein: the silicon carbide comprises the following raw materials:
3 portions of alumina
3 portions of zirconium oxide
And 5 parts of silicon nitride.
3. A preparation method of a silicon carbide ceramic material is characterized by comprising the following steps: the preparation method is suitable for a silicon carbide ceramic material as described in any one of claims 1-2; the preparation method comprises the following steps:
s1, grinding: mixing and grinding the formula according to a certain proportion to form powder;
s2, putting the raw materials of various formulas into an impurity removal cylinder (1) of an impurity removal device to remove redundant impurities and then obtaining clean raw materials;
s3, mixing: adding water into the filtered powder grinding powder into a stirring barrel for stirring;
s4, molding: the stirred slurry material is manufactured into a specific shape.
S5, sintering: and putting the molded embryos into a baking furnace, orderly placing the molded embryos, and then sintering the molded embryos at a high temperature to obtain the molded silicon carbide ceramic material.
4. A method for preparing a silicon carbide ceramic material according to claim 3, wherein: the impurity removing device provided in the S1 comprises an impurity removing barrel (1); a feeding pipe (61) is arranged at the top of the impurity removing barrel (1); a discharge pipe (52) is arranged at the bottom of the impurity removing barrel (1); the inner side wall of the impurity removing barrel (1) is connected with a supporting plate (26) in a sliding manner; the end part of the supporting plate (26) is fixedly connected with a net frame (23); a fixed box (21) is fixedly connected to the top of the impurity removing barrel (1); a motor (22) is fixedly connected to the inner side wall of the fixed box (21); the output end of the motor (22) is fixedly connected with a rotating rod (24); and a plurality of stirring rods (25) are fixedly connected with the two ends of the rotating rod (24).
5. The method for preparing a silicon carbide ceramic material according to claim 4, wherein: an electric push rod (31) is fixedly connected to the inner side wall of the impurity removing barrel (1); the bottom of the electric push rod (31) is attached to the top of the support plate (26); a guide plate (32) is fixedly connected to the inner side wall of the impurity removing barrel (1); the top of the guide plate (32) is fixedly connected with a spring (33), and the other end of the spring (33) is fixedly connected with the bottom of the support plate (26).
6. The method for preparing a silicon carbide ceramic material according to claim 5, wherein: the inner side wall of the net bag frame (23) is hinged with a guide rod (41); a knocking plate (42) is fixedly connected to the side end of the guide rod (41); a convex rod (43) is fixedly connected to the end part of the rotating rod (24); the top end of the convex rod (43) is fixedly connected with a ball body (44).
7. The method for preparing a silicon carbide ceramic material according to claim 6, wherein: the inner side wall of the feeding pipe (61) is hinged with a sealing plate (62) through a torsion spring; a push plate (65) is attached to the top of the sealing plate (62); the top of the push plate (65) is fixedly connected with a pressure lever (63); and a magnet pressing plate (64) is fixedly connected to the top of the pressing rod (63).
8. The silicon carbide ceramic material and the preparation method thereof according to claim 7, wherein: the inside wall rigid coupling of pan feeding pipe (61) has magnetite locating part (67), and is in on the same horizontal plane with magnetite clamp plate (64).
9. The method for preparing a silicon carbide ceramic material according to claim 8, wherein: two ends of the push plate (65) are rotatably connected with pulleys (66); and the top of the sealing plate (62) is fixedly connected with a wear-resistant pad (68).
10. The method for preparing a silicon carbide ceramic material according to claim 9, wherein: the bottom of the impurity removing barrel (1) is fixedly connected with a plurality of supporting legs (53); the inner side wall of the impurity removing barrel (1) is fixedly connected with a screen (51).
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