CN114907119A - Ceramic material for 3D printing and preparation method thereof - Google Patents
Ceramic material for 3D printing and preparation method thereof Download PDFInfo
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- CN114907119A CN114907119A CN202210266087.1A CN202210266087A CN114907119A CN 114907119 A CN114907119 A CN 114907119A CN 202210266087 A CN202210266087 A CN 202210266087A CN 114907119 A CN114907119 A CN 114907119A
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/3873—Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
- C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
- C04B2235/5248—Carbon, e.g. graphite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6026—Computer aided shaping, e.g. rapid prototyping
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- 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
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- 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
Abstract
The invention belongs to the technical field of ceramic materials, and particularly relates to a ceramic material for 3D printing and a preparation method thereof, wherein the ceramic material comprises the following components: 50 parts of nano zirconia powder, 2 parts of photoinitiator, 13 parts of hydroxyl-terminated polybutylene, 6-8 parts of bentonite, 12 parts of PAN carbon fiber and 1 part of silicon nitride ceramic powder; a feeding hopper is fixedly connected to the top end of the shell; a crushing wheel is rotatably connected inside the shell; a first bevel gear is fixedly connected to the crushing wheel; a second bevel gear is meshed with the first bevel gear; thereby make No. two belt pulleys rotate through the rotation of smashing the wheel, the rotation of No. two belt pulleys can make the delivery wheel carry the material to smashing on the wheel, the sputtering of material can be restricted to the delivery wheel cooperation limiting plate, makes the material more easily smashed by smashing the wheel, avoids the inside accidental injury staff of material sputter casing, and the material sputtering scope is limited, can improve the crushing speed of material to improve the kibbling efficiency of material.
Description
Technical Field
The invention belongs to the technical field of ceramic materials, and particularly relates to a ceramic material for 3D printing and a preparation method thereof.
Background
The ceramic material is an inorganic non-metallic material prepared by forming and high-temperature sintering natural or synthetic compounds; it has the advantages of high melting point, high hardness, high wear resistance, oxidation resistance and the like; the use of the material at high temperature has more potential and advantage than plastic and metal materials.
In the prior art, in the process of crushing ceramic raw materials, the materials are easily extruded by a crushing roller to generate sputtering, the sputtering of the materials easily hurts workers by mistake, and the crushing efficiency of the materials is low.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that in the prior art, in the process of crushing ceramic raw materials, the materials are easily extruded by a crushing roller to generate sputtering, the sputtering of the materials easily accidentally injures workers and the crushing efficiency of the materials is low, the invention provides the ceramic material for 3D printing and the preparation method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a ceramic material for 3D printing, which consists of the following raw materials:
preferably, the photoinitiator comprises the following raw materials:
a preparation method of a ceramic material for 3D printing is suitable for the ceramic material for 3D printing; the preparation method comprises the following steps:
s1, weighing nano zirconia powder and silicon nitride ceramic powder according to parts by weight, adding the nano zirconia powder and the silicon nitride ceramic powder into deionized water with the mass 2-3 times of that of the deionized water, stirring for 13 inches at a high speed of 1000-3000 r/min under a stirring device, drying the mixture after stirring, and then putting the mixture into a shell to be crushed to obtain a mixture A for later use;
s2, adding the bentonite melted at the heating temperature of 130 ℃ in the A into the bentonite, and stirring at the stirring speed of 300rpm for 50 minutes to obtain a mixed material B;
s3, feeding the B material into a furnace with the length-diameter ratio of 36: 1, extruding and granulating in a double-screw extruder, wherein the rotating speed of the extruder is 100-130rpm, and the temperature of each section of the extruder is as follows: the charging section is 120-140 ℃, the melting section is 130-150 ℃, the mixing section is 140-160 ℃ and the exhaust section is 130-150 ℃; and preparing the ceramic material required for 3D printing.
Preferably, the pulverizing apparatus set forth in S1 includes a housing; a feeding hopper is fixedly connected to the top end of the shell; a crushing wheel is rotatably connected inside the shell; a first bevel gear is fixedly connected to the crushing wheel; a second bevel gear is meshed with the first bevel gear; a rotating rod is fixedly connected to the top end of the second bevel gear; a first belt pulley is fixedly connected to the middle part of the rotating rod; a positioning plate is fixedly connected inside the shell; a second belt pulley is rotatably connected to the positioning plate; a conveying wheel is fixedly connected to the middle part of the second belt pulley; the conveying wheel and the first belt pulley are rotationally connected with a belt strip; a limiting plate is fixedly connected to the inner side wall of the shell; the bottom end of the second belt pulley is fixedly connected with a conveying wheel; a discharge port is formed in the shell; a collecting box is arranged at the side end of the shell; the material is sputtered out of the shell, workers are accidentally injured, the sputtering range of the material is limited, the crushing speed of the material can be increased, and the crushing efficiency of the material is improved.
Preferably, a scraping plate is fixedly connected inside the shell; the top end of the scraping plate is fixedly connected with a scraping brush; a first hard scraper is fixedly connected to the top end of the scraping plate, and a first hard scraper is arranged inside the scraping brush; the middle part of the first hard scraper is fixedly connected with a first hinge piece; a second hard scraper is rotatably connected to the first hinge; a magnetic block is fixedly connected inside the second hard scraper; thereby can make the lateral wall laminating of No. two hard scraper blades on crushing round the surface, can improve the probability that the material was scraped, avoid the material to adsorb on crushing round.
Preferably, the bottom end of the conveying wheel is fixedly connected with an anti-collision plate; an elastic plate is fixedly connected inside the anti-collision plate; a plurality of groups of toughness blocks are fixedly connected inside the anti-collision plate; the rubber elasticity of toughness piece can improve the toughness of elastic plate, and the elastic plate can improve toughness through the toughness piece to reduce the influence of material impact to the delivery wheel.
Preferably, the middle part of the limiting plate is fixedly connected with a second hinge piece; the second hinge piece is rotatably connected with a material blocking brush; the sputtering striking of material can make the fender material brush take place to rotate on keeping off the material brush, can make through the elasticity of No. two torsional springs keep off the material brush and reset.
Preferably, a protective plate is fixedly connected to the conveying wheel; a plurality of groups of shock absorption blocks are fixedly connected inside the protection plate; the rubber elasticity of the damping block can improve the toughness of the protective plate, so that the protectiveness of the conveying wheel is improved, and the loss of material sputtering to the conveying wheel is reduced.
Preferably, the inner side wall of the shell is fixedly connected with a retaining plate; the position fixing plate is rotatably connected with a rotating rod; the situation that the position of the rotating rod shakes and deviates during working is avoided, so that the rotation of the conveying wheel is influenced.
Preferably, the middle part of the second hard scraper is fixedly connected with a conical block, and a plurality of groups of conical blocks are arranged on the second hard scraper; the conical block is arranged at the lower end of the crushing wheel; the cone block can knock off the material powder block through the rotating speed of the crushing wheel, so that the material powder block is prevented from being adsorbed on the crushing wheel all the time.
The invention has the beneficial effects that:
1. the invention provides a ceramic material for 3D printing and a preparation method thereof, wherein a second belt pulley is rotated through rotation of a crushing wheel, the rotation of the second belt pulley can enable a conveying wheel to convey materials to the crushing wheel, the conveying wheel can limit sputtering of the materials by matching with a limiting plate, the materials are easier to crush by the crushing wheel, workers are prevented from being accidentally injured by the materials sputtered out of a shell, the sputtering range of the materials is limited, the crushing speed of the materials can be increased, and the crushing efficiency of the materials is improved.
2. The invention provides a ceramic material for 3D printing and a preparation method thereof, wherein powder on the surface of a grinding wheel can be cleaned through a hairbrush of a scraping brush, small particle fragments can be scraped off through a first hard scraper, a second hard scraper can be attached to the surface of the grinding wheel through the elasticity of a first torsion spring, and a magnetic block can be adsorbed to the grinding wheel through the magnetic attraction force of a magnet, so that the side wall of the second hard scraper can be attached to the surface of the grinding wheel, the probability of scraping the material can be improved, and the material is prevented from being always attached to the grinding wheel.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic diagram of the process of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a cross-sectional view of the first embodiment;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is an enlarged view at B in FIG. 4;
FIG. 6 is a schematic view of a scraper plate according to the first embodiment;
illustration of the drawings:
1. a housing; 12. feeding into a hopper; 13. a grinding wheel; 14. a first bevel gear; 15. a second bevel gear; 16. rotating the rod; 17. a first belt pulley; 18. a belt strip; 19. a limiting plate; 20. positioning a plate; 21. a second belt pulley; 22. a delivery wheel; 23. a discharge outlet; 24. a collection box; 25. a scraping plate; 26. scraping the material brush; 27. a first hard squeegee; 28. a first hinge member; 29. a second hard squeegee; 30. A magnetic block; 31. an anti-collision plate; 32. an elastic plate; 33. a tough block; 34. a second hinge member; 35. A material blocking brush; 36. a protection plate; 37. a damper block; 38. a position-retaining plate; 39. and (5) a conical block.
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
A preparation method for a ceramic material for 3D printing comprises the following raw materials in parts by weight: putting 6 parts by weight of diazonium salt, 1 part by weight of diaryl iodonium salt, 9 parts by weight of alkyl sulfonium salt and 12 parts by weight of triaryl siloxy ether into a stirring device, stirring for 13 inches at a high speed of 1000r/min under the stirring device, drying the mixture after stirring, and then putting the mixture into a shell 1 to be crushed to obtain a mixture A for later use; adding the bentonite melted at the heating temperature of 130 ℃ in the A into the bentonite, stirring at the stirring speed of 300rpm for 50 minutes to obtain a mixed material B; feeding the B material into a reactor with the length-diameter ratio of 36: 1, extruding and granulating in a double-screw extruder, wherein the rotating speed of the extruder is 100rpm, and the temperature of each section of the extruder is as follows: the charging section is 120 ℃, the melting section is 130 ℃, the mixing section is 140 ℃ and the exhaust section is 130 ℃; and preparing the ceramic material required for 3D printing.
Example two
A preparation method for a ceramic material for 3D printing comprises the following raw materials in parts by weight: placing 7 parts by weight of diazonium salt, 2 parts by weight of diaryl iodonium salt, 10 parts by weight of alkyl sulfonium salt and 14 parts by weight of triaryl siloxy ether into a stirring device, stirring for 13 inches at a high speed of 2000r/min under the stirring device, drying the mixture after stirring, and then placing the mixture into a shell 1 for crushing to obtain a mixture A for later use; adding the bentonite melted at the heating temperature of 130 ℃ in the A into the bentonite, stirring at the stirring speed of 300rpm for 50 minutes to obtain a mixed material B; feeding the B material into a reactor with the length-diameter ratio of 36: 1, extruding and granulating in a double-screw extruder, wherein the rotating speed of the extruder is 200rpm, and the temperature of each section of the extruder is as follows: a charging section of 130 ℃, a melting section of 140 ℃, a mixing section of 150 ℃ and an exhaust section of 160 ℃; and preparing the ceramic material required for 3D printing.
EXAMPLE III
A preparation method for a ceramic material for 3D printing comprises the following raw materials in parts by weight: 8 parts by weight of diazonium salt, 3 parts by weight of diaryl iodonium salt, 11 parts by weight of alkyl sulfonium salt and 15 parts by weight of triaryl siloxane are placed in a stirring device, stirred for 13 inches at a high speed of 3000r/min under the stirring device, and after stirring is finished, the mixture is dried and then placed in a shell 1 to be crushed to obtain a mixture A for later use; adding the bentonite melted at the heating temperature of 130 ℃ in the A into the bentonite, stirring at the stirring speed of 300rpm for 50 minutes to obtain a mixed material B; feeding the B material into a reactor with the length-diameter ratio of 36: 1, extruding and granulating in a double-screw extruder, wherein the rotating speed of the extruder is 300rpm, and the temperature of each section of the extruder is as follows: the charging section is 140 ℃, the melting section is 150 ℃, the mixing section is 160 ℃ and the exhaust section is 170 ℃; and preparing the ceramic material required for 3D printing.
| Index (I) | Example one | Example two | EXAMPLE III |
| Density of | 0.7 | 0.8 | 0.9 |
| Tensile strength/ |
31 | 32 | 33 |
| Flexural Strength/ |
28 | 29 | 30 |
As can be seen from the above examples, the density, tensile strength, and bending strength were the best in the third example.
Referring to fig. 1-6, a method for preparing a ceramic material for 3D printing; the preparation method is suitable for the ceramic material for 3D printing; the preparation method comprises the following steps:
s1, weighing nano zirconia powder and silicon nitride ceramic powder according to parts by weight, adding the nano zirconia powder and the silicon nitride ceramic powder into deionized water with the mass 2-3 times of the total mass, stirring for 13 inches at a high speed of 1000-3000 r/min under a stirring device, drying the mixture after stirring, and then putting the dried mixture into a shell 1 for crushing to obtain a mixture A for later use;
s2, adding the bentonite melted at the heating temperature of 130 ℃ in the A into the bentonite, and stirring at the stirring speed of 300rpm for 50 minutes to obtain a mixed material B;
s3, feeding the B material into a furnace with the length-diameter ratio of 36: 1, extruding and granulating in a double-screw extruder, wherein the rotating speed of the extruder is 100-130rpm, and the temperature of each section of the extruder is as follows: the charging section is 120-140 ℃, the melting section is 130-150 ℃, the mixing section is 140-160 ℃ and the exhaust section is 130-150 ℃; and preparing the ceramic material required for 3D printing.
The crushing apparatus proposed in S1 includes a casing 1; a feeding hopper 12 is fixedly connected to the top end of the shell 1; a crushing wheel 13 is rotatably connected inside the shell 1; a first bevel gear 14 is fixedly connected to the crushing wheel 13; a second bevel gear 15 is meshed with the first bevel gear 14; a rotating rod 16 is fixedly connected to the top end of the second bevel gear 15; a first belt pulley 17 is fixedly connected to the middle part of the rotating rod 16; a positioning plate 20 is fixedly connected inside the shell 1; a second belt pulley 21 is rotatably connected to the positioning plate 20; a conveying wheel 22 is fixedly connected to the middle part of the second belt pulley 21; the conveying wheel 22 and the first belt pulley 17 are rotatably connected with a belt strip 18; a limiting plate 19 is fixedly connected to the inner side wall of the shell 1; the bottom end of the second belt pulley 21 is fixedly connected with a conveying wheel 22; a discharge opening 23 is formed in the shell 1; a collecting box 24 is arranged at the side end of the shell 1; when the material crusher works, materials are placed into the feeding hopper 12 and enter the shell 1 through the feeding hopper 12, the materials are crushed through the rotation of the crushing wheel 13, the first bevel gear 14 is rotated through the rotation of the crushing wheel 13, the second bevel gear 15 is rotated through the rotation of the first bevel gear 14, the rotating rod 16 is rotated through the rotation of the second bevel gear 15, the first belt pulley 17 is rotated through the rotation of the rotating rod 16, the first belt pulley 17 is rotated and the belt strip 18 is rotated through the rotation of the first belt pulley 17, the conveying wheel 22 is rotated through the rotation of the belt strip 18, the position of the second belt pulley 21 can be fixed by the positioning plate 20, the second belt pulley 21 is rotated through the rotation of the conveying wheel 22, the materials fall on the conveying wheel 22 through the feeding hopper 12, the conveying wheel 22 is rotated through the rotation of the second belt pulley 21 to convey the materials to the crushing wheel 13, the material on the conveying wheel 22 can be limited by the limiting plate 19, avoid the material to be sputtered, the material can be extruded when smashing on smashing the wheel 13 and take place to sputter, the sputtering of material can be restricted to the delivery wheel 22 cooperation limiting plate 19, make the material more easily smashed by smashing the wheel 13, avoid the inside accidental injury staff of material sputter casing 1, and the material sputtering scope is limited, can improve the crushing speed of material, thereby improve the kibbling efficiency of material, the inside of casing 1 is discharged from bin outlet 23 after the material is smashed, get into the convenient subsequent processing of the inside storage of collecting box 24.
A scraping plate 25 is fixedly connected inside the shell 1; the top end of the scraping plate 25 is fixedly connected with a scraping brush 26; a first hard scraper 27 is fixedly connected to the top end of the scraper plate 25, and a first hard scraper 27 is arranged inside the scraper brush 26; a first hinge 28 is fixedly connected to the middle part of the first hard scraper 27; a second hard scraper 29 is rotatably connected to the first hinge 28; a magnetic block 30 is fixedly connected inside the second hard scraper 29; the surface can adsorb some material powder when crushing round 13, scrape the position that flitch 25 can fix hard scraper blade 27 and scrape material brush 26, the brush of scraping material brush 26 can clean crushing round 13 powder on the surface, small-size granule piece can be scraped to hard scraper blade 27 No. one, the inside of articulated elements 28 is equipped with the torsional spring No. one, elasticity through the torsional spring can make No. two hard scraper blades 29 laminate at crushing round 13 on the surface, magnetic block 30 can adsorb to crushing round 13 through the magnet appeal, thereby can make No. two hard scraper blade 29's lateral wall laminate at crushing round 13 on the surface, can improve the probability that the material was scraped, avoid the material to adsorb on crushing round 13.
The bottom end of the conveying wheel 22 is fixedly connected with an anti-collision plate 31; an elastic plate 32 is fixedly connected inside the anti-collision plate 31; a plurality of groups of toughness blocks 33 are fixedly connected inside the anti-collision plate 31; the position of the elastic plate 32 can be fixed by the anti-collision plate 31, the elastic plate 32 is made of sponge materials and has good elasticity, when materials are sputtered to the conveying wheel 22, the impact force of the materials sputtering can be buffered by the elasticity of the elastic plate 32, the loss of the materials impacting on the conveying wheel 22 is reduced, the toughness of the elastic plate 32 can be improved by the rubber elasticity of the toughness block 33, the toughness can be improved by the elastic plate 32 through the toughness block 33, and therefore the influence of the material impact force on the conveying wheel 22 is reduced.
The middle part of the limiting plate 19 is fixedly connected with a second hinge piece 34; the second hinge part 34 is rotatably connected with a material blocking brush 35; thereby dropping on crushing wheel 13 on the limiting plate 19 of material, keeping off the material brush 35 and can stopping the sputter of material, make the material can be smashed fast, the inside of No. two articulated elements 34 is equipped with the torsional spring No. two, keeps off the material brush 35 and can laminate on crushing wheel 13 through the elasticity of No. two torsional springs, the sputter striking of material can make to keep off the material brush 35 and take place to rotate on keeping off the material brush 35, elasticity through No. two torsional springs can make and keep off the material brush 35 and reset.
A protective plate 36 is fixedly connected to the conveying wheel 22; a plurality of groups of shock absorption blocks 37 are fixedly connected inside the protection plate 36; the protective plate 36 is made of sponge material and has good elasticity, the elasticity of the protective plate 36 can reduce the influence of material sputtering on the conveying wheel 22, and the rubber elasticity of the damping block 37 can improve the toughness of the protective plate 36, so that the protection performance of the conveying wheel 22 is improved, and the loss of the material sputtering on the conveying wheel 22 is reduced.
A fixing plate 38 is fixedly connected to the inner side wall of the shell 1; the position-fixing plate 38 is rotatably connected with a rotating rod 16; the position-retaining plate 38 can define the position of the rotating rod 16, and avoid the situation that the position of the rotating rod 16 shakes and shifts during operation, thereby influencing the rotation of the conveying wheel 22.
The middle part of the second hard scraper blade 29 is fixedly connected with a conical block 39, and the second hard scraper blade 29 is provided with a plurality of groups of conical blocks 39; the conical block 39 is arranged at the lower end of the crushing wheel 13; the second hard scraper 29 is attached to the crushing wheel 13 and can scrape materials, the conical block 39 is arranged at one end of the second hard scraper 29, when the material powder block rotates towards the second hard scraper 29, the conical block 39 can knock the material powder block at the rotating speed of the crushing wheel 13, and the material powder block is prevented from being adsorbed on the crushing wheel 13 all the time.
The working principle is as follows: when the material crusher works, materials are placed into the feeding hopper 12 and enter the shell 1 through the feeding hopper 12, the materials are crushed through the rotation of the crushing wheel 13, the first bevel gear 14 is rotated through the rotation of the crushing wheel 13, the second bevel gear 15 is rotated through the rotation of the first bevel gear 14, the rotating rod 16 is rotated through the rotation of the second bevel gear 15, the first belt pulley 17 is rotated through the rotation of the rotating rod 16, the first belt pulley 17 is rotated and the belt strip 18 is rotated through the rotation of the first belt pulley 17, the conveying wheel 22 is rotated through the rotation of the belt strip 18, the position of the second belt pulley 21 can be fixed by the positioning plate 20, the second belt pulley 21 is rotated through the rotation of the conveying wheel 22, the materials fall on the conveying wheel 22 through the feeding hopper 12, the conveying wheel 22 is rotated through the rotation of the second belt pulley 21 to convey the materials to the crushing wheel 13, the material on the conveying wheel 22 can be limited by the limiting plate 19, the material is prevented from being sputtered, the material can be extruded to be sputtered when being crushed on the crushing wheel 13, the conveying wheel 22 is matched with the limiting plate 19 to limit the sputtering of the material, the material is easier to be crushed by the crushing wheel 13, the phenomenon that the material is sputtered out of the interior of the shell 1 to injure workers by mistake is avoided, the sputtering range of the material is limited, the crushing speed of the material can be improved, the crushing efficiency of the material is improved, and the crushed material is discharged out of the interior of the shell 1 from the discharge port 23 and enters the interior of the collecting box 24 to be stored so as to facilitate subsequent treatment; the surface can adsorb some material powder when crushing round 13 is smashed, scrape the position that flitch 25 can fix hard scraper blade 27 and scrape material brush 26, the brush of scraping material brush 26 can clean crushing round 13 powder on the surface, small-size granule piece can be scraped to hard scraper blade 27 No. one, the inside of articulated elements 28 is equipped with the torsional spring No. one, elasticity through the torsional spring can make No. two hard scraper blades 29 laminate on crushing round 13 on the surface, magnetic block 30 can adsorb to crushing round 13 through the magnet appeal, thereby can make No. two hard scraper blade 29's lateral wall laminate on crushing round 13 on the surface, can improve the probability that the material was scraped, avoid the material to adsorb on crushing round 13.
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 ceramic material for 3D printing, characterized by: the ceramic material is composed of the following raw materials:
2. ceramic material for 3D printing according to claim 1, characterized in that: the photoinitiator comprises the following raw materials:
3. a method for preparing a ceramic material for 3D printing, the method being suitable for a ceramic material for 3D printing according to any one of claims 1-2, wherein: the preparation method comprises the following steps:
s1, weighing nano zirconia powder and silicon nitride ceramic powder according to parts by weight, adding the nano zirconia powder and the silicon nitride ceramic powder into deionized water with the mass 2-3 times of that of the deionized water, stirring for 13 inches at a high speed of 1000-3000 r/min under a stirring device, drying the mixture after stirring, and crushing the mixture in the step (1) to obtain a mixture A for later use;
s2, adding the bentonite melted at the heating temperature of 130 ℃ in the A into the bentonite, and stirring at the stirring speed of 300rpm for 50 minutes to obtain a mixed material B;
s3, feeding the B material into a furnace with the length-diameter ratio of 36: 1, extruding and granulating in a double-screw extruder, wherein the rotating speed of the extruder is 100-130rpm, and the temperature of each section of the extruder is as follows: the charging section is 120-140 ℃, the melting section is 130-150 ℃, the mixing section is 140-160 ℃ and the exhaust section is 130-150 ℃; and preparing the ceramic material required for 3D printing.
4. A method of preparing a ceramic material for 3D printing according to claim 3, characterized in that: the crushing device proposed in S1 includes a case (1); a feeding hopper (12) is fixedly connected to the top end of the shell (1); a crushing wheel (13) is rotatably connected inside the shell (1); a first bevel gear (14) is fixedly connected to the crushing wheel (13); a second bevel gear (15) is meshed with the first bevel gear (14); a rotating rod (16) is fixedly connected to the top end of the second bevel gear (15); a first belt pulley (17) is fixedly connected to the middle part of the rotating rod (16); a positioning plate (20) is fixedly connected inside the shell (1); a second belt pulley (21) is rotatably connected to the positioning plate (20); a conveying wheel (22) is fixedly connected to the middle part of the second belt pulley (21); the conveying wheel (22) and the first belt pulley (17) are rotatably connected with a belt strip (18); a limiting plate (19) is fixedly connected to the inner side wall of the shell (1); a conveying wheel (22) is fixedly connected to the bottom end of the second belt pulley (21); a discharge opening (23) is formed in the shell (1); the side end of the shell (1) is provided with a collecting box (24).
5. The method of preparing a ceramic material for 3D printing according to claim 4, wherein: a scraping plate (25) is fixedly connected inside the shell (1); the top end of the scraping plate (25) is fixedly connected with a scraping brush (26); a first hard scraper (27) is fixedly connected to the top end of the scraper plate (25), and a first hard scraper (27) is arranged inside the scraper brush (26); a first hinge piece (28) is fixedly connected to the middle part of the first hard scraper (27); a second hard scraper (29) is rotatably connected to the first hinge piece (28); and a magnetic block (30) is fixedly connected inside the second hard scraper (29).
6. The method of claim 5, wherein the ceramic material is selected from the group consisting of: the bottom end of the conveying wheel (22) is fixedly connected with an anti-collision plate (31); an elastic plate (32) is fixedly connected inside the anti-collision plate (31); and a plurality of groups of toughness blocks (33) are fixedly connected inside the anti-collision plate (31).
7. The method of preparing a ceramic material for 3D printing according to claim 6, wherein: a second hinge piece (34) is fixedly connected to the middle part of the limiting plate (19); and a material blocking brush (35) is rotatably connected to the second hinge piece (34).
8. The method of preparing a ceramic material for 3D printing according to claim 7, wherein: a protective plate (36) is fixedly connected to the conveying wheel (22); and a plurality of groups of damping blocks (37) are fixedly connected inside the protection plate (36).
9. The method of preparing a ceramic material for 3D printing according to claim 8, wherein: a retaining plate (38) is fixedly connected to the inner side wall of the shell (1); the position-fixing plate (38) is rotatably connected with a rotating rod (16).
10. The method of claim 9, wherein the ceramic material is selected from the group consisting of: the middle part of the second hard scraper (29) is fixedly connected with a conical block (39), and a plurality of groups of conical blocks (39) are arranged on the second hard scraper (29); the cone block (39) is arranged at the lower end of the crushing wheel (13).
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