CN111238233B - Forming process and device for complex curved surface bulletproof plugboard - Google Patents
Forming process and device for complex curved surface bulletproof plugboard Download PDFInfo
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- CN111238233B CN111238233B CN202010169048.0A CN202010169048A CN111238233B CN 111238233 B CN111238233 B CN 111238233B CN 202010169048 A CN202010169048 A CN 202010169048A CN 111238233 B CN111238233 B CN 111238233B
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000008569 process Effects 0.000 title claims abstract description 33
- 238000005245 sintering Methods 0.000 claims abstract description 53
- 239000002245 particle Substances 0.000 claims abstract description 16
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 13
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 238000004537 pulping Methods 0.000 claims abstract description 4
- 238000001694 spray drying Methods 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000004321 preservation Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000001272 pressureless sintering Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
- F27B17/0041—Chamber type furnaces specially adapted for burning bricks or pottery
- F27B17/005—Chamber type furnaces specially adapted for burning bricks or pottery with cylindrical chambers
-
- 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
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/04—Circulating atmospheres by mechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/02—Plate construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/04—Circulating atmospheres by mechanical means
- F27D2007/045—Fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
- F27M2001/1504—Ceramic articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
Abstract
The invention discloses a forming process and a device of a complex curved surface bulletproof plugboard, which comprises the following steps: the method comprises the following steps: after boron carbide powder is prepared into particles by pulping and spray drying, the surface of the powder particles is modified and sintering aids are added to promote the activity among the boron carbide particles in the sintering process, and the boron carbide particles are pressed into a blank by a steel die; step two: the manufactured blank body is placed into a sintering furnace, vacuum sintering is carried out to 2200 ℃, then heat preservation is carried out for 60 minutes, cooling and discharging are carried out after sintering is completed, the complex curved surface bulletproof flashboard forming process and the complex curved surface bulletproof flashboard forming device pass through a burning board arranged inside the sintering furnace, the temperature of airflow of the complex curved surface bulletproof flashboard and the burning board in direct contact is kept relatively uniform, meanwhile, the complex curved surface bulletproof flashboard can be stably supported, and the stability of the bulletproof flashboard during sintering inside a sintering furnace body is further improved.
Description
Technical Field
The invention relates to the technical field of bulletproof flashboard processing, in particular to a forming process and a device of a bulletproof flashboard with a complex curved surface.
Background
The multi-curved surface bulletproof flashboard is a continuously gradually-changed complex curved surface, a product consists of arcs with different curvatures at each position, and the blank at each position is required to have basically the same density in the blank at the compression molding stage in a pressureless sintering process, so that the weight of powder distributed in each unit volume of the blank is required to be basically the same before compression molding.
In practical application of the bulletproof inserting plate, in order to ensure the comfort of users, the shape of the bulletproof inserting plate is formed by a complex curved surface which is designed according to human engineering and is continuously and gradually changed, and in order to ensure the curved surface structure of the bulletproof inserting plate, the used ceramic material also has the same complex curved surface.
In the pressureless sintering process of boron carbide ceramics, because the requirement of densification is required to be met, a product is placed on a burning bearing plate, the bearing plate is placed in a high-temperature sintering furnace to be sintered and deformed, however, in the process that a high-temperature product shrinks by about 20% in volume in the high-temperature sintering furnace, the shape of the curved surface of the product can be changed due to the volume shrinkage, and the processes of shrinkage and shape change are all completed at the temperature of over 2200 ℃, under the ultrahigh temperature environment, the measurement part of a thermocouple can be damaged due to overhigh temperature, and meanwhile, in the process that the product deforms, because a bulletproof flashboard is in the shape of a complex curved surface, and the temperature in the sintering furnace is changed from the areas of temperature rise, temperature preservation, temperature reduction and cooling, the phenomenon of uneven temperature distribution in the air flow contacting between the bulletproof flashboard and the burning bearing plate often occurs, therefore, the production and control difficulty of the bulletproof inserting plate is very high, and therefore, a forming process and a forming device of the bulletproof inserting plate with the complex curved surface are provided.
Disclosure of Invention
The invention aims to provide a forming process and a forming device of a complex curved bulletproof plugboard, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a forming process of a complex curved bulletproof inserting plate comprises the following steps:
the method comprises the following steps: after boron carbide powder is prepared into particles by pulping and spray drying, the surface of the powder particles is modified and sintering aids are added to promote the activity among the boron carbide particles in the sintering process, and the boron carbide particles are pressed into a blank by a steel die;
step two: and putting the prepared blank into a sintering furnace, sintering the blank in vacuum to 2200 ℃, then preserving the heat for 60 minutes, and cooling and discharging the blank after sintering.
Preferably, the sintering aid in the step one is carbon, aluminum, iron, boron or titanium carbide, silicon carbide, titanium boride and the like.
Preferably, the time from the placing of the blank into the sintering furnace to the discharging and cooling in the second step is 30 hours.
Preferably, 2-3 thermocouples used for measuring fixed position points in the heat insulation material at the high temperature section are arranged inside the sintering furnace in the second step, and 1 infrared measuring instrument is arranged outside the hearth of the sintering furnace.
The utility model provides a forming device of shellproof picture peg of complicated curved surface, includes the fritting furnace body and sets up the stove section of thick bamboo in the fritting furnace body inside, the inside of stove section of thick bamboo is equipped with holds the flitch, and holds to be equipped with on the flitch and make shellproof picture peg carry out evenly distributed by the temperature of being heated around, and makes shellproof picture peg stably place the fixed guiding device on holding the flitch, through the fixed guiding device who is equipped with to play carries out effectual water conservancy diversion to shellproof picture peg and the position of holding contact between the flitch.
Preferably, the burning bearing plates are uniformly distributed inside the furnace barrel, and the plurality of burning bearing plates are arranged, so that the bulletproof inserting plates are produced in batch.
Preferably, fixed guiding device is including setting up the support shell in the stove section of thick bamboo is inside, support the inside water conservancy diversion spare that is equipped with of shell, and water conservancy diversion spare output and holding fever board fixed connection, holding fever board outside and being equipped with the clamping piece that takes shape, through the support shell that is equipped with to play and carry out the effect that effectual support was held to the water conservancy diversion spare.
Preferably, the water conservancy diversion spare is including setting up the air intake in the inside both sides of support shell, air intake department is equipped with the support frame, and the support frame middle part rotates and is connected with the rotation fan, support the inside water conservancy diversion post that is equipped with of shell, and the top that the support shell corresponds the water conservancy diversion post is equipped with the air outlet, the air outlet outside is equipped with a support section of thick bamboo, and holds burning board fixed connection on a support section of thick bamboo, through the water conservancy diversion spare that is equipped with to play the effect that carries out the homodisperse to the temperature of stove section of thick bamboo inside.
Preferably, the inner part of the burning board is provided with a groove, the burning board is communicated with the supporting barrel, and the burning board is equidistantly provided with a plurality of through holes, so that the burning board and the bulletproof flashboard are stably contacted.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the actual temperature in the sintering furnace is directly measured by the thermocouples at a low temperature section in a mode that 2-3 thermocouples are arranged in the sintering furnace body and 1 infrared measuring instrument is arranged outside a hearth; the method for combining the temperature value of a fixed position point (a measuring point with a fixed distance from the interior of a hearth) in the heat-insulating material measured by the thermocouple at the high-temperature section and the temperature value of the interior of the hearth measured by the infrared tester realizes the stability and the controllability of the temperature in the high-temperature sintering process through a series of control methods of conversion and conversion.
2. According to the invention, the firing bearing plate is arranged in the sintering furnace, and the firing bearing plate not only keeps relatively uniform temperature of the complex curved surface bulletproof flashboard and the airflow in direct contact with the firing bearing plate, but also can play a role in stably supporting the complex curved surface bulletproof flashboard, so that the stability of the bulletproof flashboard during sintering in the sintering furnace body is further improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top cross-sectional view of a sintering furnace body according to the present invention;
FIG. 3 is a schematic view of the internal structure of the support housing of the present invention;
FIG. 4 is a schematic top view of the load bearing board of the present invention;
FIG. 5 is a schematic view of a fixing block according to the present invention;
FIG. 6 is an enlarged view of area A of FIG. 5 in accordance with the present invention;
FIG. 7 is an enlarged view of area B of FIG. 5 according to the present invention.
In the figure: 1-sintering furnace body; 2-furnace cylinder; 3-a setter plate; 4-a groove; 5-a through hole; 6-fixing the flow guide device; 7-a support shell; 8-a flow guide member; 9-air inlet; 10-a support frame; 11-rotating the fan; 12-a flow guide column; 13-air outlet; 14-a support cylinder; 15-forming the clamp; 16-fixing block; 17-a moving slot; 18-a resilient abutment; 19-an abutment plate; 20-a guide groove; 21-moving the column; 22-a positioning groove; 23-inserting plates; 24-a baffle; 25-a connecting rod; 26-a buffer spring; 27-a deformable compression member; 28-a limiting rod; 29-a stop collar; 30-accommodating grooves; 31-a positioning spring; 32-a connector; 33-connecting lugs; 34-a compacting plate; 35-a guide bar; 36-a fixed seat; 37-support collar.
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. 1-7, the present invention provides a technical solution: a forming process and a device of a complex curved surface bulletproof plugboard are disclosed, and the forming process of the complex curved surface bulletproof plugboard comprises the following steps:
the method comprises the following steps: after boron carbide powder is prepared into particles by pulping and spray drying, the surface of the powder particles is modified and sintering aids are added to promote the activity among the boron carbide particles in the sintering process, and the boron carbide particles are pressed into a blank by a steel die;
step two: and putting the prepared blank into a sintering furnace, sintering the blank in vacuum to 2200 ℃, then preserving the heat for 60 minutes, and cooling and discharging the blank after sintering.
In the first step, the sintering aid is carbon, aluminum, iron, boron or titanium carbide, silicon carbide, titanium boride and the like.
And in the second step, the blank is placed into a sintering furnace, and the time from discharging to cooling is 30 hours.
And 2-3 thermocouples used for measuring fixed position points in the heat insulation material at the high temperature section are arranged inside the sintering furnace in the second step, and 1 infrared measuring instrument is arranged outside the hearth of the sintering furnace.
A forming device for a complex curved surface bulletproof inserting plate comprises a sintering furnace body 1 and a furnace barrel 2 arranged inside the sintering furnace body 1, wherein a plurality of burning bearing plates 3 are arranged inside the furnace barrel 2, the burning bearing plates 3 are uniformly distributed inside the furnace barrel 2, grooves 4 are formed inside the burning bearing plates 3, namely the burning bearing plates 3 are hollow, a plurality of strip-shaped bulges are arranged on the surfaces of the burning bearing plates 3, the burning bearing plates 3 are communicated with a supporting barrel 14, a plurality of through holes 5 are arranged on the burning bearing plates 3 at equal distances, the through holes 5 are uniformly distributed at the positions of the bulges, and when the burning bearing plates 3 are supported, the strip-shaped bulges effectively increase the friction force of the burning bearing plates 3 during supporting, so that the burning bearing plates 3 can be stably supported;
the supporting burning plate 3 is provided with a fixed flow guide device 6 which enables the temperature around the bulletproof inserting plate to be uniformly distributed and enables the bulletproof inserting plate to be stably placed on the supporting burning plate 3, the fixed flow guide device 6 comprises a supporting shell 7 arranged inside the furnace barrel 2, a flow guide part 8 is arranged inside the supporting shell 7, the output end of the flow guide part 8 is fixedly connected with the supporting burning plate 3, the flow guide part 8 comprises air inlets 9 arranged at two sides inside the supporting shell 7, a supporting frame 10 is arranged at the air inlets 9, a rotating fan 11 is rotatably connected to the middle of the supporting frame 10, a flow guide column 12 is arranged inside the supporting shell 7, and the flow guide column 12 is a trapezoidal cylinder with a cambered surface;
and the supporting shell 7 is provided with an air outlet 13 corresponding to the top end of the flow guide column 12, a supporting cylinder 14 is arranged outside the air outlet 13, the burning board 3 is fixedly connected to the supporting cylinder 14, and in the process of sintering, when the temperature inside the sintering furnace changes in sequence, the air flow flows into the supporting shell 7 through the position of the air inlet 9, and simultaneously in the process of flowing through the air inlet 9, the rotating fan 11 is driven by the driving force to rotate, so that the flowing effect of the air flow is effectively accelerated, the air flow flows out through the air outlet 13 along the flow guide column 12, enters the groove 4 inside the burning board 3 through the supporting cylinder 14, and then flows out from the through hole 5, and in the process of flowing out from the through hole 5, the flowing effect of accelerating the air temperature around the bulletproof flashboard is further realized, and the uniform effect of improving the temperature distribution around the bulletproof flashboard is further realized.
The outer side of the burning bearing plate 3 is provided with a forming clamping piece 15, the forming clamping piece 15 comprises a fixed block 16 arranged at one end of the top of the supporting shell 7, a moving groove 17 is formed in the fixed block 16, an elastic abutting piece 18 is arranged in the moving groove 17, the output end of the elastic abutting piece 18 is fixedly connected with an abutting plate 19, the abutting plate 19 abuts against the bulletproof flashboard, the abutting plate 19 is rectangular, and the abutting plate 19 can further perform stable abutting action with the outer side of the bulletproof flashboard;
the elastic abutting part 18 comprises a moving column 21 which is connected to the intersection of the guide groove 20 and the moving groove 17 in a sliding manner, a positioning groove 22 is formed in the moving column 21, a moving inserting plate 23 penetrates through the positioning groove 22 in a sliding manner, the moving inserting plate 23 is T-shaped, one end of the large end face of the moving inserting plate 23 is far away from the moving inserting plate 23, and meanwhile the inclination angle of the inside of the positioning groove 22 is matched with the inclination angle of the moving inserting plate 23, so that the moving inserting plate 23 can move stably in the positioning groove 22;
one end of the movable inserting plate 23 is fixedly connected with a baffle plate 24, one side of the baffle plate 24, far away from the movable inserting plate 23, is fixedly connected with a connecting rod 25, one end of the connecting rod 25 penetrates through the movable column 21 to be fixedly connected with the abutting plate 19, the outer side of the connecting rod 25 is provided with a buffer spring 26, and two ends of the buffer spring 26 are respectively fixedly connected with the inside of the movable groove 17 and the baffle plate 24;
the inside guide way 20 that is equipped with in the vertical direction of fixed block 16, and guide way 20 and shifting chute 17 intercommunication, the inside deformation that is equipped with of guide way 20 compresses tightly a 27, and warp and compress tightly 27 output and shellproof picture peg top butt, warp and compress tightly 27 and include fixed connection at the gag lever post 28 on removal post 21 top, stop collar 29 has been cup jointed in the gag lever post 28 outside, and gag lever post 28 slides and runs through stop collar 29, the one end that stop collar 29 is close to gag lever post 28 bottom is equipped with holding tank 30, the gag lever post 28 outside is equipped with positioning spring 31, and positioning spring 31's both ends respectively with remove post 21 top and the inside fixed connection of holding tank 30, the stop collar 29 outside is equipped with connecting piece 32, and connecting piece 32 output fixed connection has clamp plate 34, clamp plate 34 bottom and shellproof picture peg upper surface butt, connecting piece 32 includes the engaging lug 33 of fixed connection in the stop collar 29 outside, the connecting lug 33 is hinged with the bottom end of the compression plate 34 through a pin shaft, the compression plate 34 is provided with a guide groove 20, the compression plate 34 is T-shaped, and the arc end of the compression plate 34 is abutted against the bulletproof flashboard;
and the inside of the guide groove 20 is penetrated with a guide rod 35 in a sliding manner, two ends of the guide rod 35 are respectively fixedly connected with a fixed seat 36, the outer sides of the two fixed seats 36 are fixedly connected with a supporting ferrule 37, the supporting ferrule 37 is fixedly connected on the fixed block 16, when the bulletproof flashboard is placed on the burning board 3, namely the bulletproof flashboard is not deformed, the buffer spring 26 is in an extending state, the buffer spring 26 has a directional elastic acting force, at the moment, the position of one section of the small end surface of the movable flashboard 23 is positioned in the positioning groove 22 in the movable column 21, at the moment, the movable column 21 vertically moves upwards relative to the guide groove 20, and simultaneously, under the connection effect of the connecting lugs 33, the driving force of the pressure plate 34 is provided, so that the pressure plate 34 is abutted against the bulletproof flashboard, when the bulletproof flashboard contracts by about 20% in volume in the sintering process, at this time, the abutting plate 19 abutting on the outer side of the bulletproof insert plate moves in the direction of the bulletproof insert plate by the reverse elastic force of the buffer spring 26, while the displaced buffer springs 26 are still in a stretched state, thus keeping the abutment plate 19 in abutment with the outside of the bulletproof insert, meanwhile, in the process of moving the buffer spring 26, one end of the large end surface of the movable inserting plate 23 moves to the inside of the positioning groove 22, meanwhile, the moving column 21 moves downwards along the vertical direction, the positioning spring 31 further drives the limiting sleeve 29 to move downwards along the vertical direction, and the pressing plate 34 positioned outside the limiting sleeve 29 is provided with the guide groove 20, the guide groove 20 thereof is rotated along the guide bar 35, thereby making the pressing plate 34 perform a tilt rotation of a moving angle in a vertical direction, thereby moving along the deformation direction of the bulletproof flashboard and further realizing the function of abutting and fixing the contracted bulletproof flashboard.
The bottom of gag lever post 28 is equipped with the limiting plate, and the limiting plate is located stop collar 29 top, and the diameter of limiting plate is greater than stop collar 29's internal diameter, and then plays the effect of carrying on spacingly to gag lever post 28.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A forming process of a complex curved bulletproof inserting plate comprises the following steps:
the method comprises the following steps: after boron carbide powder is prepared into particles by pulping and spray drying, the surface of the powder particles is modified and sintering aids are added to promote the activity among the boron carbide particles in the sintering process, and the boron carbide particles are pressed into a blank by a steel die;
step two: putting the prepared blank into a sintering furnace, sintering the blank to 2200 ℃ in vacuum, then preserving heat for 60 minutes, cooling and discharging the blank after sintering;
the forming device applied to the forming process of the complex curved surface bulletproof flashboard comprises a sintering furnace body and a furnace barrel arranged in the sintering furnace body, wherein a burning bearing plate is arranged in the furnace barrel, and a fixed flow guide device which enables the heating temperature around the bulletproof flashboard to be uniformly distributed and enables the bulletproof flashboard to be stably placed on the burning bearing plate is arranged on the burning bearing plate;
the fixed flow guide device comprises a support shell arranged in the furnace barrel, a flow guide part is arranged in the support shell, the output end of the flow guide part is fixedly connected with the burning bearing plate, and a forming clamping part is arranged on the outer side of the burning bearing plate;
the flow guide part comprises air inlets arranged at two sides in the supporting shell, a supporting frame is arranged at the air inlets, a rotating fan is rotatably connected to the middle of the supporting frame, a flow guide column is arranged in the supporting shell, an air outlet is arranged at the top end of the supporting shell corresponding to the flow guide column, a supporting barrel is arranged at the outer side of the air outlet, and the burning bearing plate is fixedly connected to the supporting barrel;
a groove is formed in the burning plate, the burning plate is communicated with the supporting barrel, and a plurality of through holes are formed in the burning plate at equal intervals;
the forming clamping piece comprises a fixed block arranged at one end of the top of the supporting shell, a moving groove is formed in the fixed block, an elastic abutting piece is arranged in the moving groove, an abutting plate is fixedly connected to the output end of the elastic abutting piece, the abutting plate abuts against the bulletproof flashboard, the abutting plate is rectangular, and the abutting plate is stably abutted against the outer side of the bulletproof flashboard;
elasticity butt piece includes the removal post of sliding connection at the intersection of guide way and shifting chute, the inside constant head tank that is equipped with of shifting chute, and the inside slip of constant head tank has run through and has removed the picture peg, and removes the picture peg and be the T shape, and the one end of removing the big terminal surface of picture peg keeps away from removing the picture peg, and the inside inclination of constant head tank matches with the inclination that removes the picture peg simultaneously.
2. The process of forming a complex curved ballistic insert of claim 1 wherein: in the first step, the sintering aid is carbon, aluminum, iron, boron or titanium carbide, silicon carbide and titanium boride.
3. The process of forming a complex curved ballistic insert of claim 2 wherein: and in the second step, the blank is put into a sintering furnace, and the time from discharging to cooling is 30 hours.
4. The process of forming a complex curved ballistic insert of claim 1 wherein: and 2-3 thermocouples used for measuring fixed position points in the heat insulation material at the high temperature section are arranged in the sintering furnace in the second step, and 1 infrared measuring instrument is arranged outside the hearth of the sintering furnace.
5. The process of forming a complex curved ballistic insert of claim 1 wherein: the burning bearing plates are provided with a plurality of burning bearing plates which are evenly distributed inside the furnace barrel.
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| CN202010169048.0A CN111238233B (en) | 2020-03-12 | 2020-03-12 | Forming process and device for complex curved surface bulletproof plugboard |
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| CN111238233B true CN111238233B (en) | 2021-09-14 |
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| CN111998676A (en) * | 2020-09-09 | 2020-11-27 | 宣城鸿海装备科技有限公司 | Powder material burns till with bearing push pedal device |
| CN113340119B (en) * | 2021-03-30 | 2023-03-24 | 浙江领崎科技有限责任公司 | Burning-bearing die of ceramic protection plate |
| CN113340120B (en) * | 2021-03-30 | 2023-03-24 | 浙江领崎科技有限责任公司 | Ceramic protection plate's device that holds fever |
| CN116379783A (en) * | 2023-04-08 | 2023-07-04 | 南通三责精密陶瓷有限公司 | Carrier for pressureless liquid phase sintering silicon carbide ceramic |
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| CN104529457B (en) * | 2014-12-03 | 2017-06-13 | 中国兵器工业第五二研究所烟台分所 | Pressureless sintering boron carbide ceramics preparation method based on coarse granule powder |
| CN105157416B (en) * | 2015-09-16 | 2017-05-03 | 苏州汇科机电设备有限公司 | High-temperature vacuum sintering furnace |
| CN105272261A (en) * | 2015-11-19 | 2016-01-27 | 中国兵器科学研究院宁波分院 | Pressureless sintering preparation method for boron carbide ceramic |
| CN206974138U (en) * | 2017-06-29 | 2018-02-06 | 南京威途真空技术有限公司 | A kind of packaged type vacuum high temperature furnace therm-param method device |
| CN209520364U (en) * | 2018-12-19 | 2019-10-22 | 曲靖中铭科技有限公司 | A kind of metal powder metallurgy technique vacuum sintering furnace |
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Inventor after: Yin Bangjin Inventor after: Pan Hucheng Inventor before: Yin Bangjin Inventor before: Shen Gengshou Inventor before: Pan Hucheng |