CN114986661A - Preparation method and device of silicon nitride sonar thermal imaging insulating strip - Google Patents
Preparation method and device of silicon nitride sonar thermal imaging insulating strip Download PDFInfo
- Publication number
- CN114986661A CN114986661A CN202210360499.1A CN202210360499A CN114986661A CN 114986661 A CN114986661 A CN 114986661A CN 202210360499 A CN202210360499 A CN 202210360499A CN 114986661 A CN114986661 A CN 114986661A
- Authority
- CN
- China
- Prior art keywords
- crushing
- silicon nitride
- sonar
- fixed
- thermal imaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
- B02C4/26—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a grid or grating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0072—Product control or inspection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
- C04B35/62615—High energy or reactive ball milling
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6581—Total pressure below 1 atmosphere, e.g. vacuum
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a method and a device for preparing a silicon nitride sonar thermal imaging insulating strip, which relate to the technical field of ceramics and comprise the following steps: the ball mill is used for carrying out ball milling and crushing on the materials; the dryer is arranged at the output end of the ball mill and is used for drying the ball-milled materials; the crusher is arranged at the output end of the dryer and is used for crushing the dried materials; the sorting machine is arranged at the output end of the crusher and is used for sorting the crushed materials according to a certain size; and the press is arranged at the output end of the sorting machine and is used for carrying out press forming on the obtained material. The application provides a preparation method of a silicon nitride sonar thermal imaging insulating strip in the ceramic field, the method utilizes the silicon nitride insulating strip to replace common metal parts, and a sonar thermal imaging sensor needs high-strength and high-insulation parts, so that the problem of the silicon nitride insulating strip is well solved.
Description
Technical Field
The invention relates to the technical field of ceramics, in particular to a preparation method and a device of a silicon nitride sonar thermal imaging insulating strip.
Background
With the development and utilization of ocean resources, underwater acoustic detection is the current hot topic, and submarine topography detection is the first step of ocean development, and the importance of submarine topography detection is self-evident. Currently, sonar sensors are mainly used for detecting submarine topography. While sonar thermography sensors require high strength and high insulation parts.
Disclosure of Invention
The invention aims to provide a method and a device for preparing a silicon nitride sonar thermal imaging insulating strip, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation device of a silicon nitride sonar thermal imaging insulating strip comprises the following steps: the ball mill is used for carrying out ball milling and crushing on the materials; the dryer is arranged at the output end of the ball mill and is used for drying the ball-milled materials; the crusher is arranged at the output end of the dryer and is used for crushing the dried materials; the sorting machine is arranged at the output end of the crusher and is used for sorting the crushed materials according to a certain size; and the press is arranged at the output end of the sorting machine and is used for performing press forming on the obtained materials.
As a further scheme of the invention: the sorter is including selecting separately the box, it selects separately the entry to select separately the box top, it is provided with the bottom export to select separately the bottom half, it is provided with broken structure to select separately the inside top of box, it is provided with vibrations blanking structure to select separately the box intermediate position.
As a still further scheme of the invention: broken structure is including smashing the motor, smashing the support filter screen, smashing the installation cover, smashing the pivot and smashing the flabellum, it smashes the motor to be fixed with on the support filter screen to smash inside being fixed with of separation box, smash motor drive and connect and smash the pivot, smash and be fixed with through smashing the installation cover and smash the flabellum in the pivot.
As a still further scheme of the invention: the vibration blanking structure comprises a rolling part and a vibration part, wherein the rolling part comprises a fixed support plate, a driving motor, a fixed sleeve, a support screen plate and a driving screw rod, the fixed support plate is fixed at a fixed position, the side edge of the fixed support plate is fixed with the driving motor, the driving motor is in driving connection with the driving screw rod, the fixed sleeve is arranged on the driving screw rod in a threaded manner, a grinding part is arranged between adjacent fixed sleeves, the support screen plate is arranged in the separation box body in a sliding manner, and the vibration part is arranged at the bottom of the support screen plate; the vibrating component comprises a bottom buffer spring and a sliding plate, the bottom buffer spring is fixed at a fixed position, the end part of the bottom buffer spring is fixedly provided with the sliding plate, the sliding plate is in sliding connection with the sorting box body, and the end part of the sliding plate is fixedly provided with a supporting screen plate.
As a still further scheme of the invention: pulverize the piece including roll the motor, roll protrudingly, roll pivot and vibrations arch, fixed cover side is fixed with and rolls the motor, it connects and rolls the pivot to roll motor drive, it rolls protrudingly to evenly be fixed with in the pivot to roll, it is protruding to evenly be fixed with vibrations on the support otter board.
A preparation method of a silicon nitride sonar thermal imaging insulating strip comprises the following steps:
s1, putting the materials, water and the small balls into a ball mill at one time, covering a sealing cover, and setting the ball milling time;
s2, sampling and detecting the particles of the slurry, and controlling the ball milling time of the ball mill;
s3, drying the slurry in the ball mill by a dryer;
s4, crushing the dried material by a crusher;
s5, sorting the crushed materials by a sorting machine;
and S6, pressing and forming the material obtained by the sorting machine by using a press.
As a further scheme of the invention: the step S6 further includes the steps of:
s61, measuring the weight and the size of the finished product formed by pressing;
s62, detecting whether cracks, corner damages or impurities exist in the appearance of the finished product formed by pressing, and if so, judging that the finished product is unqualified;
s63, degumming the qualified finished product;
s64, sintering the qualified finished product in a sintering furnace;
and S65, fine grinding the sintered finished product by using a grinding machine.
As a still further scheme of the invention: the sintering temperature in step S64 is 1420 ℃.
As a still further scheme of the invention: and (4) adopting a vacuum sintering furnace in the sintering process of the step S64, and vacuumizing in the sintering process.
Compared with the prior art, the invention has the beneficial effects that:
1) the application provides a preparation method of a silicon nitride sonar thermal imaging insulating strip in the field of ceramics, the method replaces common metal parts with the silicon nitride insulating strip, and a sonar thermal imaging sensor needs high-strength and high-insulation parts, so that the problem of the silicon nitride insulating strip is well solved;
2) according to the method, the vacuum sintering furnace is adopted, vacuum pumping treatment is performed for multiple times in the sintering process, nitrogen is filled for multiple times in a controlled amount to match with the corresponding sintering temperature range, and nitridation of silicon is controlled, so that the insulativity of the silicon is improved; the time and temperature of the phase transformation of silicon nitride a → beta are controlled and the pressure treatment is carried out in the sintering process, so that the mechanical property is improved;
3) this application rolls part and vibrations part through the adoption for can carry out abundant separation to the material that obtains, avoid the caking to lead to the fact piling up in the sorter is inside.
Drawings
Fig. 1 is a schematic structural diagram of a preparation device of a silicon nitride sonar thermal imaging insulating strip.
Fig. 2 is a schematic structural diagram of a sorting box in the preparation device of the silicon nitride sonar thermal imaging insulating strip.
Fig. 3 is a schematic view of a vibration blanking structure in a preparation device of a silicon nitride sonar thermal imaging insulating strip.
Fig. 4 is a schematic view of a crushing structure in a preparation device of a silicon nitride sonar thermal imaging insulating strip.
Fig. 5 is a schematic diagram of a preparation method of a silicon nitride sonar thermal imaging insulating strip.
Description of reference numerals: 1. a sorting box body; 2. a bottom outlet; 3. a placing plate chute; 4. a sorting inlet; 5. a drive motor; 6. fixing a sleeve; 7. supporting the screen plate; 8. driving the screw rod; 9. a bottom buffer spring; 10. connecting a support rod; 11. a sliding plate; 12. fixing the support plate; 13. vibrating the protrusion; 14. rolling the bulges; 15. rolling the rotating shaft; 16. rolling a motor; 17. smashing the mounting sleeve; 18. breaking a support filter screen; 19. breaking a motor; 20. breaking the fan blades; 21. breaking the rotating shaft.
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.
Referring to fig. 1 to 5, in the embodiment of the present invention, a device for preparing a silicon nitride sonar thermal imaging insulating strip includes a ball mill, a dryer, a crusher, a sorter and a press, wherein a feeding manner is adopted for feeding materials at a time, materials, water and small balls are put into the ball mill at a time, and a ball milling time of the ball mill is set, in the embodiment, a 24H ball milling time is adopted, then a sampling component is used to fully detect slurry, and determine whether a granularity of the slurry meets a requirement, if so, the next step is carried out, if not, the ball milling time is increased until the slurry is qualified, after the ball milling is finished, the dryer is arranged at an output end of the ball mill to dry the ball milled slurry to obtain dried materials, the crusher is used to crush the dried slurry, wherein the crusher is arranged at the output end of the dryer, the method comprises the steps of obtaining crushed raw materials, utilizing a sorting machine to sort the materials after crushing is finished, wherein a stainless steel sorting screen is adopted for screening in the embodiment, finally utilizing a press to press, wherein the press is arranged at the output end of the crushing machine, and demolding is carried out after the materials are pressed into blanks under the action of certain pressure to obtain the cost.
As a further embodiment of this application, please refer to fig. 1 and fig. 2, wherein the sorter includes sorting box 1, sorting box 1 top is provided with selects separately entry 4, utilize and select separately entry 4 to get into the broken material that the breaker obtained, be provided with bottom export 2 in sorting box 1 bottom afterwards, a material for after will sorting is finished is discharged, sorting box 1 inside top is provided with crushing structure, sorting box 1 intermediate position is provided with vibrations blanking structure, utilize crushing structure to carry out further fine crushing to the material, utilize vibrations blanking structure can avoid having the material to block up on the mesh. So in this embodiment, at first get into the raw materials through sorting entry 4, carry out abundant further smashing through crushing structure to the material afterwards, utilize vibrations blanking structure to realize the vibrations unloading to the material afterwards, discharge the material from bottom export 2, wherein in this embodiment, be provided with the multiunit on bottom export 2 and place board spout 3 for place the filter screen case of unidimensional not, thereby obtain the powder of unidimensional not.
As a further embodiment of the present application, please refer to fig. 1 and 4, wherein in order to further crush the powder, the crushing structure includes a crushing motor 19, a crushing support filter 18, a crushing mounting sleeve 17, a crushing rotating shaft 21 and crushing blades 20, the crushing support filter 18 is fixed inside the sorting box 1, the crushing motor 19 for providing crushing power is fixed on the crushing support filter 18, the crushing motor 19 is connected to the crushing rotating shaft 21 in a driving manner, and the crushing blades 20 are fixed on the crushing rotating shaft 21 through the crushing mounting sleeve 17, i.e., in this embodiment, the crushing rotating shaft 21 is driven by the crushing motor 19 to rotate the crushing fixing sleeve 17 and the crushing blades 20 under the rotating action of the crushing rotating shaft 21, so as to further crush the material.
As a further embodiment of the present application, please refer to fig. 1 and fig. 3, wherein in order to realize blanking of the crushed material and avoid blocking of various mesh plates inside the sorting box 1, the vibrating blanking structure comprises a rolling component and a vibrating component, wherein the rolling component is used for fully rolling the material, and the rolling component comprises a fixed support plate 12, a driving motor 5, a fixed sleeve 6, a support mesh plate 7 and a driving screw 8, first, the fixed support plate 12 is fixed at a fixed position, that is, the fixed support plate 12 is fixed at a fixed position inside the sorting box 1, a driving motor 5 is fixed on the side of the fixed support plate 12, the driving motor 5 is in driving connection with the driving screw 8, the fixed sleeve 6 is arranged on the driving screw 8 by a thread, a crushing component is arranged between adjacent fixed sleeves 6, so that under the limiting effect of the crushing component and under the driving effect of the driving motor 5, make the piece of smashing can carry out lateral shifting and pulverize, and select separately the inside slip of box 1 and be provided with support otter board 7, be used for sorting the material, and be provided with vibration part in support otter board 7 bottom, be used for carrying out vertical ascending vibrations with support otter board 7, wherein vibration part includes bottom buffer spring 9 and sliding plate 11, bottom buffer spring 9 is fixed in the fixed department, bottom buffer spring 9 end fixing has sliding plate 11 and selects separately box 1 sliding connection, sliding plate 11 end fixing has support otter board 7, when supporting otter board 7 and shaking promptly, sliding plate 11 vertically shakes under bottom buffer spring 9's effect.
As a further embodiment of the present application, please refer to fig. 1 and fig. 3, wherein in order to achieve sufficient grinding of the raw material, the grinding member includes a grinding motor 16, a grinding protrusion 14, a grinding rotating shaft 15 and a vibration protrusion 13, i.e. the grinding motor 16 is fixed on the side of the fixing sleeve 6, the grinding motor 16 is in driving connection with the grinding rotating shaft 15, the grinding protrusion 14 is uniformly fixed on the grinding rotating shaft 15, and the vibration protrusion 13 is uniformly fixed on the support screen 7. In this embodiment, the rolling motor 16 is used to drive the rolling rotating shaft 15, so as to achieve the rolling under the cooperation of the rolling protrusion 14 and the supporting mesh plate 7, and then the supporting mesh plate 5 can longitudinally move to a certain extent due to the existence of the vibration protrusion 13 and the rolling rotating shaft 15 moving transversely, so as to achieve the vibration to the longitudinal direction, and further prevent the supporting mesh plate 7 from being blocked. In this embodiment, at first utilize driving motor 5 action, drive lead screw 8, thereby make and grind the piece and carry out lateral shifting, and in the in-process that grinds the piece lateral shifting, utilize grinding motor 16 to drive and grind pivot 15 and grind, utilize and grind 14 lump-shaped material that probably becomes and grind, later because grinding pivot 15 is lateral shifting, when reacing and grinding on the arch 14, can make support otter board 7 longitudinal movement, thereby roll support otter board 7 downwards, make bottom buffer spring 9 extruded, when grinding pivot 15 and shifting out and grinding on the arch 14, under bottom buffer spring 9's effect, support otter board 7 realizes shaking.
Referring to fig. 1 to 5, in an embodiment of the present invention, a method for manufacturing a silicon nitride sonar thermal imaging insulating strip includes the following steps: s1, putting the materials, water and the small balls into a ball mill once, covering a sealing cover, and setting ball milling time, wherein in the embodiment, the set time is the ball milling time of 24 hours, the granularity in the slurry needs to be detected in the process until the slurry is qualified, and the next step is carried out until the slurry is qualified, and if the slurry is not qualified, the ball milling time is increased until the slurry is qualified; s2, sampling and detecting the particles of the slurry, and controlling the ball milling time of the ball mill; s3, drying the slurry in the ball mill by a dryer; s4, crushing the dried material by a crusher; s5, sorting the crushed materials by a sorting machine; and S6, pressing and forming the material obtained by the sorting machine by using a press. In the process, before the action of the press, the weight of the raw materials is calculated according to the product type number of an order, the weighed raw materials are uniformly distributed in the die, then the working condition of the press is adjusted, the pressure is kept at 480T, the pressure maintaining time is 5 minutes, and the pressed blank is demoulded and weighed.
As a further embodiment of the present application, please refer to fig. 1 and fig. 5, wherein step S6 further includes the following steps: s61, measuring the weight and the size of the finished product formed by pressing, wherein the size deviation is less than or equal to 0.2 mm, and the finished product is qualified; s62, detecting whether cracks, corner damages or impurities exist in the appearance of the finished product formed by pressing, and if so, judging that the finished product is unqualified; s63, degumming the qualified finished product; after the blank is pressed, the standing time cannot exceed 4 hours, and S64, sintering the qualified finished product in a sintering furnace after detection, wherein in the embodiment, the finished product needs to be loaded into the sintering furnace layer by layer; and S65, fine grinding the sintered finished product by using a grinding machine to ensure that all sizes float up and down within the tolerance of 0.03 mm.
As a further embodiment of the present application, please refer to fig. 1 and 5, wherein the sintering temperature in step S64 is 1420 degrees celsius.
As a further embodiment of the present application, please refer to fig. 1 and fig. 5, wherein a vacuum sintering furnace is used in the sintering process of step S64, and a vacuum process is performed during the sintering process, that is, nitrogen is filled after the vacuum process, and the sintering process is performed according to a certain sintering process.
Wherein in the powder material aSi 3 N 4 The content of (a) is critical for sintering of the silicon nitride ceramic. With the increase of temperature, the silicon nitride powder generates a-Si at about 1420 DEG C 3 N 4 →B-Si 3 N 4 The structural reconstruction type phase transition of (1). The phase change occurs under the combined action of high temperature and liquid phase, the a-SiN crystal form with stable low temperature has relatively high solubility, and the a-SiN crystal form with stable low temperature is dissolved into liquid phase first and then precipitated to separate out B-SiN crystal form with low solubility and stable high temperature 4 And (4) phase(s). This is a high temperature transition irreversible process. B-Si 3 N 4 The crystal grains are generally in a long columnar shape or a needle shape, the appearance of the long columnar crystal grains can play a role in toughening whiskers, and the comprehensive performance of the silicon nitride ceramic is obviously improved, so that the silicon nitride is an inorganic nonmetal strong covalent bond compound, and the silicon nitride has good performances such as high strength, high hardness, high temperature resistance and the like because the nitrogen atoms are combined very firmly; and is a high-performance electric insulating material. The method has good application in sonar thermal imaging sensors.
In the present application, the blank weight and blank size are calculated. Designing a die for pressing the blank according to the size of the blank; the powder with the calculated proportion is subpackaged into a mould and pressed by a cold isostatic press; and after degumming treatment is carried out on the pressed blank, the pressed blank is placed into a bedroom furnace independently developed by a company for air pressure sintering. In order to improve the insulation of the silicon nitride, a vacuum sintering furnace is adopted, multiple times of vacuum pumping treatment are carried out in the sintering process, and nitrogen is filled in a controlled amount for multiple times to match with the corresponding sintering temperature range so as to control the nitridation of the silicon, so that the insulation of the silicon nitride is improved; the time and temperature of the phase transformation of silicon nitride a → beta are controlled and the pressure treatment is carried out in the sintering process, so that the mechanical property is improved; and (3) performing finish machining after sintering according to the shape and size requirements of the product, performing finish machining on the common surface by using a grinding machine, and performing finish machining on the special-shaped surface by matching with a tool until all sizes are qualified. Therefore, the strength and the insulativity of the boron carbide composite ceramic are improved by adopting the process for preparing the boron carbide composite ceramic. The method is suitable for being used as a sonar thermal imaging insulating strip.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A preparation device of a silicon nitride sonar thermal imaging insulating strip is characterized by comprising the following steps:
the ball mill is used for carrying out ball milling and grinding on the materials;
the dryer is arranged at the output end of the ball mill and is used for drying the ball-milled materials;
the crusher is arranged at the output end of the dryer and is used for crushing the dried materials;
the sorting machine is arranged at the output end of the crusher and is used for sorting the crushed materials according to a certain size;
and the press is arranged at the output end of the sorting machine and is used for performing press forming on the obtained materials.
2. The preparation device of the silicon nitride sonar thermal imaging insulating strip according to claim 1, wherein the sorting machine comprises a sorting box body, a sorting inlet (4) is formed in the top of the sorting box body (1), a bottom outlet (2) is formed in the bottom of the sorting box body (1), a crushing structure is arranged at the top end inside the sorting box body (1), and a vibrating blanking structure is arranged in the middle of the sorting box body (1).
3. The preparation device of silicon nitride sonar thermal imaging insulating strip according to claim 2, wherein the crushing structure includes a crushing motor (19), a crushing support screen (18), a crushing mounting sleeve (17), a crushing rotating shaft (21) and a crushing fan blade (20), the crushing motor (19) is fixed on the crushing support screen (18) inside the sorting box body (1), the crushing motor (19) is connected in a driving manner and is crushed the rotating shaft (21), and the crushing fan blade (20) is fixed on the crushing rotating shaft (21) through the crushing mounting sleeve (17).
4. The device for preparing the silicon nitride sonar thermal imaging insulating strip according to claim 2, wherein the vibration blanking structure comprises a rolling part and a vibration part, the rolling part comprises a fixed support plate (12), a driving motor (5), a fixed sleeve (6), a support screen (7) and a driving screw (8), the fixed support plate (12) is fixed at a fixed position, the driving motor (5) is fixed at the side of the fixed support plate (12), the driving motor (5) is in driving connection with the driving screw (8), the fixed sleeve (6) is arranged on the driving screw (8) in a threaded manner, a grinding part is arranged between adjacent fixed sleeves (6), the support screen (7) is arranged inside the sorting box body (1) in a sliding manner, and the vibration part is arranged at the bottom of the support screen (7);
the vibrating part comprises a bottom buffer spring (9) and a sliding plate (11), the bottom buffer spring (9) is fixed at a fixed position, the end part of the bottom buffer spring (9) is fixedly provided with the sliding plate (11), the sliding plate (11) is in sliding connection with the sorting box body (1), and the end part of the sliding plate (11) is fixedly provided with a supporting screen plate (7).
5. The preparation device of silicon nitride sonar thermal imaging insulating strip according to claim 4, wherein the grinding element comprises a grinding motor (16), a grinding protrusion (14), a grinding rotating shaft (15) and a vibration protrusion (13), the grinding motor (16) is fixed on the side of the fixing sleeve (6), the grinding rotating shaft (15) is in driving connection with the grinding motor (16), the grinding protrusion (14) is uniformly fixed on the grinding rotating shaft (15), and the vibration protrusion (13) is uniformly fixed on the supporting screen plate (7).
6. A method for preparing a silicon nitride sonar thermal imaging insulating strip, which is prepared by the preparation device for the silicon nitride sonar thermal imaging insulating strip according to any one of claims 2 to 5, and comprises the following steps:
s1, putting the materials, water and the small balls into a ball mill at one time, covering a sealing cover, and setting the ball milling time;
s2, sampling and detecting the particles of the slurry, and controlling the ball milling time of the ball mill;
s3, drying the slurry in the ball mill by a dryer;
s4, crushing the dried material by a crusher;
s5, sorting the crushed materials by a sorting machine;
and S6, pressing and forming the material obtained by the sorting machine by using a press.
7. The method for preparing a silicon nitride sonar thermal imaging insulating strip according to claim 6, wherein the step S6 further comprises the steps of:
s61, measuring the weight and the size of the finished product formed by pressing;
s62, detecting whether cracks, corner damages or impurities exist in the appearance of the finished product formed by pressing, and if so, judging that the finished product is unqualified;
s63, degumming the qualified finished product;
s64, sintering the qualified finished product in a sintering furnace;
and S65, fine grinding the sintered finished product by using a grinding machine.
8. The method of preparing a silicon nitride sonar thermal imaging insulation bar of claim 7, wherein the sintering temperature in step S64 is 1420 degrees Celsius.
9. The method for preparing the silicon nitride sonar thermal imaging insulating strip according to claim 7, wherein a vacuum sintering furnace is used in the sintering process of step S64, and a vacuum pumping process is performed in the sintering process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210360499.1A CN114986661A (en) | 2022-04-07 | 2022-04-07 | Preparation method and device of silicon nitride sonar thermal imaging insulating strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210360499.1A CN114986661A (en) | 2022-04-07 | 2022-04-07 | Preparation method and device of silicon nitride sonar thermal imaging insulating strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114986661A true CN114986661A (en) | 2022-09-02 |
Family
ID=83023342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210360499.1A Pending CN114986661A (en) | 2022-04-07 | 2022-04-07 | Preparation method and device of silicon nitride sonar thermal imaging insulating strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114986661A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116512406A (en) * | 2023-05-09 | 2023-08-01 | 青岛元创新材料科技合伙企业(有限合伙) | Equipment and method for preparing silicon nitride ceramic insulating plate by tape casting method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123584A1 (en) * | 2012-02-24 | 2013-08-29 | Torxx Group Inc. | Highly filled particulate composite materials and methods and apparatus for making same |
| CN106518088A (en) * | 2016-10-27 | 2017-03-22 | 中国工程物理研究院材料研究所 | Manufacturing method of high-performance silicon nitride sealing ring |
| CN106984543A (en) * | 2017-04-07 | 2017-07-28 | 湖北美利林科技有限公司 | A kind of new grinding ball separator group |
| FR3051186A1 (en) * | 2016-05-11 | 2017-11-17 | Ariamis Eng | METHOD FOR MANUFACTURING A METAL-CERAMIC POWDER SUITABLE FOR THE PRODUCTION OF A HARD CERAMIC PIECE AND METHOD FOR MANUFACTURING THE SAME |
| CN108176809A (en) * | 2018-01-02 | 2018-06-19 | 繁昌县金牛机械铸造有限责任公司 | A kind of casting wet pan |
| CN110590378A (en) * | 2019-09-19 | 2019-12-20 | 太原科技大学 | Preparation method of homogenized and distributed silicon nitride ceramic material |
| CN213377143U (en) * | 2020-09-27 | 2021-06-08 | 福建美士邦精细陶瓷科技有限公司 | Silicon nitride milling device |
| CN214051920U (en) * | 2020-07-15 | 2021-08-27 | 吴正瑶 | Colliery ore reducing mechanism |
-
2022
- 2022-04-07 CN CN202210360499.1A patent/CN114986661A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123584A1 (en) * | 2012-02-24 | 2013-08-29 | Torxx Group Inc. | Highly filled particulate composite materials and methods and apparatus for making same |
| FR3051186A1 (en) * | 2016-05-11 | 2017-11-17 | Ariamis Eng | METHOD FOR MANUFACTURING A METAL-CERAMIC POWDER SUITABLE FOR THE PRODUCTION OF A HARD CERAMIC PIECE AND METHOD FOR MANUFACTURING THE SAME |
| CN106518088A (en) * | 2016-10-27 | 2017-03-22 | 中国工程物理研究院材料研究所 | Manufacturing method of high-performance silicon nitride sealing ring |
| CN106984543A (en) * | 2017-04-07 | 2017-07-28 | 湖北美利林科技有限公司 | A kind of new grinding ball separator group |
| CN108176809A (en) * | 2018-01-02 | 2018-06-19 | 繁昌县金牛机械铸造有限责任公司 | A kind of casting wet pan |
| CN110590378A (en) * | 2019-09-19 | 2019-12-20 | 太原科技大学 | Preparation method of homogenized and distributed silicon nitride ceramic material |
| CN214051920U (en) * | 2020-07-15 | 2021-08-27 | 吴正瑶 | Colliery ore reducing mechanism |
| CN213377143U (en) * | 2020-09-27 | 2021-06-08 | 福建美士邦精细陶瓷科技有限公司 | Silicon nitride milling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116512406A (en) * | 2023-05-09 | 2023-08-01 | 青岛元创新材料科技合伙企业(有限合伙) | Equipment and method for preparing silicon nitride ceramic insulating plate by tape casting method |
| CN116512406B (en) * | 2023-05-09 | 2023-09-26 | 青岛元创新材料科技合伙企业(有限合伙) | Equipment and method for preparing silicon nitride ceramic insulating plate by tape casting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102249236B (en) | Production process for silicon carbide micropowder | |
| CN114986661A (en) | Preparation method and device of silicon nitride sonar thermal imaging insulating strip | |
| CN106622603B (en) | Used on cement production line fine powder milling apparatus | |
| CN104772711A (en) | Polycrystalline cubic boron nitride abrasive and preparation method thereof | |
| CN102417184A (en) | Method for preparing high-purity ultrafine silicon powder from vein quartz | |
| CN205462480U (en) | Superfine grinding system is used to cement manufacture | |
| CN106032323B (en) | It is a kind of using TiAl powder as the Ti of raw material2AlC ceramic powder preparation method | |
| CN101891194B (en) | Preparation method of semiconductor wafer cutting blade material | |
| CN112374868A (en) | Microcrystal high-alumina ball, preparation method thereof and method for grinding ceramic blank by using microcrystal high-alumina ball | |
| Jensen et al. | Influence of quartz particles on wear in vertical roller mills. Part I: Quartz concentration | |
| CN209945524U (en) | Weighing and metering device for hopper | |
| KR102001397B1 (en) | Manufacturing Method of Aluminum-Silicon Carbide Using By-product of Cutting Process | |
| Stepkowska et al. | Effect of grinding and water vapour on the particle size of kaolinite and pyrophyllite | |
| CN214346768U (en) | Grinding device for monocrystalline silicon slicing | |
| CN105314977A (en) | Method for preparing calcium copper titanate | |
| CN111334685B (en) | Preparation method of high-density Half-Heusler thermoelectric material and obtained product | |
| CN106378236A (en) | Vertical grinding machine for glass fiber | |
| CN103447119A (en) | Vertical roller mill and grinding method thereof | |
| CN206881889U (en) | A kind of silicon carbide micro-powder mechanical classification breaker | |
| CN201565328U (en) | Non-pollution engineering ceramic column type crushing machine | |
| JP4666725B2 (en) | Raw rice roll pulverization method and pulverizer | |
| CN215541288U (en) | Cornmill is used in production of cavity glass | |
| Blazy et al. | Vibroinertial comminution—principles and performance | |
| CN104630531A (en) | Ultra-quick method for preparing high-performance In4Se3-base thermoelectric material | |
| CN217095673U (en) | Powder metallurgy uses high efficiency powder process equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |