CN111805701A - Intelligent hot-press forming military protective ceramic equipment - Google Patents
Intelligent hot-press forming military protective ceramic equipment Download PDFInfo
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- CN111805701A CN111805701A CN202010778858.6A CN202010778858A CN111805701A CN 111805701 A CN111805701 A CN 111805701A CN 202010778858 A CN202010778858 A CN 202010778858A CN 111805701 A CN111805701 A CN 111805701A
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- 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
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
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- 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
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- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention belongs to the technical field of hot-pressing equipment, and particularly relates to intelligent hot-pressing equipment for forming military protective ceramics, which comprises a furnace body, a heating body, a hydraulic system, a mould, a condenser, a vacuum pump and a controller, wherein the heating body is arranged on the furnace body; the furnace body is provided with an inert gas interface and is connected with a condenser and a vacuum pump; the heating body is arranged in the furnace body; the pressure head of the hydraulic system extends into the heating body from the upper end and the lower end of the furnace body; the die is arranged between the pressure heads, and a hot-pressing sintering protective sleeve is arranged outside the die; the controller is respectively connected with the furnace body, the condenser and the vacuum pump. The furnace body has large actual use volume and is suitable for hot-pressing sintered ceramic plates with large size and super thickness; the furnace body can keep airtight and airtight; the upper pressing head and the lower pressing head can move, and the pressing heads do not crack when the pressure is increased; the compactness of a sintered product can be improved; the heating time is short, and meanwhile, the heat is kept not to be lost, so that the energy is saved and the environment is protected; the heat dissipation of the temperature in the furnace body can be accelerated.
Description
Technical Field
The invention belongs to the technical field of hot-pressing equipment, and particularly relates to intelligent hot-pressing equipment for forming military protective ceramics.
Background
The military protective armor is protected by simple steel in the early stage, the external armor protection is improved to the composite armor protection, at present, the protective ceramic material prepared by a hot pressing sintering method cannot achieve the effective use area in a hot pressing furnace, so that the thickness of the protective ceramic material is generally below 30mm, the side length of the external dimension is below 200, the thickness and the size of the ceramic plate required by the conventional army armor and aviation helicopter are improved, the diameter of the conventional bullet is larger, the hardness is higher, the penetration is higher, the protective ceramic principle is improved accordingly, the corresponding ultrahigh-temperature high-pressure equipment is developed from the past 30cm below to the large dimension of 30cm to 100cm, the ultra-thickness direction is advanced, the corresponding ultrahigh-temperature high-pressure equipment becomes the necessary equipment of the composite military protective ceramic, and the military hot pressing protective ceramic can be developed only by the.
Disclosure of Invention
The invention aims to provide intelligent hot-press forming equipment for military protective ceramics, which is suitable for hot-press sintering of large-size and super-thick ceramic plates.
According to the technical scheme of the invention, the intelligent hot-press forming military protective ceramic equipment comprises a furnace body, a heating body, a hydraulic system, a mould, a condenser, a vacuum pump and a controller; the furnace body is provided with an inert gas interface and is connected with a condenser and a vacuum pump; the heating body is arranged in the furnace body; the pressure head of the hydraulic system extends into the heating body from the upper end and the lower end of the furnace body; the die is arranged between the pressure heads, and a hot-pressing sintering protective sleeve is arranged outside the die; the controller is respectively connected with the furnace body, the condenser and the vacuum pump.
Furthermore, a temperature measuring hole is formed in the furnace body.
Furthermore, a cooling water circulation system is connected to the furnace shell of the furnace body.
Furthermore, the heating element is tightly wound into a cylinder and is positioned in the center of the furnace body.
Furthermore, a heat insulation system is arranged outside the heating body.
Furthermore, the heat preservation and insulation system comprises heat preservation and insulation ceramic, a heat insulation and insulation board, a heat preservation and insulation cotton felt and a coating which are sequentially arranged from inside to outside.
Furthermore, a pressing block is arranged on the pressing head, and a base plate is arranged between the pressing block and the pressing head.
Furthermore, the pressing block is a composite ceramic pressing block, and the backing plate is a tungsten alloy backing plate.
Further, the hot-pressed sintering protective sleeve is prepared by winding carbon fibers.
The invention has the beneficial effects that:
the furnace body has large actual use volume and is suitable for hot-pressing sintering of large-size and super-thick ceramic plates;
by adopting a vacuum hot-pressing sintering method, the furnace body can be kept airtight, and a sealed space can be still ensured under the condition of micro positive pressure;
the external pressure system is arranged, and the upper pressure head and the lower pressure head can walk; the upper pressure head and the lower pressure head are both provided with a composite ceramic pressing block and a tungsten alloy backing plate, so that the pressure heads are prevented from cracking when the pressure is increased;
the die is a sintered product protective sleeve prepared by winding special high-strength carbon fibers, so that the periphery of the die can also apply pressure to a sample in the process of applying pressure by the upper pressure head and the lower pressure head, and the compactness of a sintered product is improved;
the heat insulation ceramic, the heat insulation board, the heat insulation cotton felt, the coating and other heat insulation materials are arranged outside the heating body, so that the high-temperature heating time is shortened, and meanwhile, the heat is kept not to be lost, so that the effects of energy conservation and environmental protection are achieved;
during cooling, the mode of inert gas circulating cooling can be started, and the heat dissipation of the temperature in the furnace body is accelerated.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: 1-furnace body, 1.1-inert gas interface, 1.2-temperature measuring hole, 2-heating body, 3-hydraulic system, 3.1-pressure head, 3.2-backing plate, 3.3-briquetting, 4-mould, 5-condenser, 6-vacuum pump, 7-controller, 8-hot pressing sintering protective sleeve, 9-cooling water circulation system and 10-product.
Detailed Description
The invention is further illustrated by the following examples and figures.
As shown in the figure: intelligent hot-press forming military protective ceramic equipment comprises a furnace body 1, a heating body 2, a hydraulic system 3, a mold 4, a condenser 5, a vacuum pump 6 and a controller 7. The furnace body 1 is provided with an inert gas interface 1.1, the furnace body 1 is connected with a condenser 5 and a vacuum pump 6, the whole furnace body is sealed and can be vacuumized to 6-10pa, and inert gas can be filled to maintain micro-positive pressure of 0.05-0.1 Mpa. The heating element 2 is disposed in the furnace body 1. The pressure head 3.1 of the hydraulic system 3 extends into the heating body 2 from the upper end and the lower end of the furnace body 1, and the upper part and the lower part can be simultaneously pressurized to move, the applied pressure is 400t-700t, and the moving stroke is 2m-5 m. The mould 4 is arranged between the upper pressure head 3.1 and the lower pressure head 3.1, and a hot-pressing sintering protective sleeve 8 is arranged outside the mould 4. The furnace body 1, condenser 5 and vacuum pump 6 are connected respectively to controller 7, and external power source can be connected to controller 7 adoption PLC to can be equipped with the wiFi delivery outlet, utilize equipment such as computer cell-phone to monitor autoclave's temperature and pressure condition anytime and anywhere.
Specifically, the furnace body 1 is provided with a temperature measuring hole 1.2, and the temperature inside the hearth can be monitored by adopting an optical temperature measuring mode. The furnace shell of the furnace body 1 is connected with a cooling water circulation system 9, and the heat in the furnace is taken away by utilizing the water circulation, so that the external temperature of the furnace is kept below 20-35 ℃.
The heating element 2 is tightly wound into a cylinder, the heating element 2 is positioned in the center of the furnace body 1, the rapid temperature rise can be realized, and the temperature range is 500-2300 ℃; the heating element 2 has an effective use area phi 1900 x 180 mm-phi 1900 x 200mm, and can be fired into a ceramic plate with a side length of 200 and 350 mm. A heat preservation and insulation system is arranged outside the heating body 2; the heat preservation and insulation system comprises heat preservation and insulation materials such as heat preservation and insulation ceramics, a heat preservation and insulation board, a heat preservation and insulation cotton felt, a coating and the like which are sequentially arranged from inside to outside, and the heat conductivity of the heat preservation and insulation system is reduced to 0.4-0.5W/m.K. The high temperature rise rate is satisfied and is 2-4 ℃/min
A pressing block 3.3 is arranged on the pressing head 3.1, and a backing plate 3.2 is arranged between the pressing block 3.3 and the pressing head 3.1; the pressing block 3.3 can be a composite ceramic pressing block, has high strength and high temperature resistance, and the backing plate 3.2 can be a tungsten alloy backing plate, has high strength and can bear the pressure of 500-700 t.
The hot-pressing sintering protective sleeve 8 is prepared by winding special high-strength carbon fibers, the protective sleeve does not deform at the high temperature of 2000-2200 ℃, the thermal expansion coefficient is low, a certain binding effect can be realized on a product under the high-temperature condition, and the high-pressure resistant performance is 40-60 MPa.
The working process is as follows: opening a furnace cover of a furnace body, putting the mold and the product 10 into the furnace, adjusting the position of the mold to position the mold, detecting whether an upper pressure head and a lower pressure head are in horizontal parallel positions, adjusting the positions of the upper pressure head and the lower pressure head to be in the horizontal parallel state, closing the furnace cover, vacuumizing to detect the tightness in the furnace, detecting whether a water circulation system is smooth, detecting whether the pressure is sufficient, starting hot-pressing sintering, wherein the sintering temperature is 500-2300 ℃, the sintering pressure is 400-times 700t, and the heating rate is 5-100 ℃/min. When the temperature is reduced to below 500 ℃, the temperature in the furnace can be reduced quickly by the inert gas circulation mode, the sintering time can be shortened, and the working efficiency can be improved.
Claims (9)
1. The intelligent hot-press forming equipment for military protective ceramics is characterized by comprising a furnace body (1), a heating body (2), a hydraulic system (3), a mould (4), a condenser (5), a vacuum pump (6) and a controller (7); an inert gas interface (1.1) is arranged on the furnace body (1), and the furnace body (1) is connected with a condenser (5) and a vacuum pump (6); the heating body (2) is arranged in the furnace body (1); a pressure head (3.1) of the hydraulic system (3) extends into the heating body (2) from the upper end and the lower end of the furnace body (1); the die (4) is arranged between the pressure heads (3.1), and a hot-pressing sintering protective sleeve (8) is arranged outside the die (4); the controller (7) is respectively connected with the furnace body (1), the condenser (5) and the vacuum pump (6).
2. The intelligent hot-press forming military protective ceramic equipment according to claim 1, wherein the furnace body (1) is provided with a temperature measuring hole (1.2).
3. The intelligent hot-press forming military protective ceramics equipment according to claim 1, wherein a cooling water circulation system (9) is connected to the furnace shell of the furnace body (1).
4. The intelligent hot-press forming military protective ceramics equipment of claim 1, wherein the heating element (2) is tightly wound into a cylinder, and the heating element (2) is positioned in the center of the furnace body (1).
5. The intelligent hot-press forming military protective ceramics equipment of claim 1, wherein a heat preservation and insulation system is arranged outside the heating body (2).
6. The intelligent hot-press forming military protective ceramic equipment of claim 5, wherein the heat preservation and insulation system comprises a heat preservation and insulation ceramic, a heat insulation board, a heat preservation and insulation cotton felt and a coating which are arranged in sequence from inside to outside.
7. The intelligent hot-press forming military protective ceramics equipment according to claim 1, wherein the pressure head (3.1) is provided with a pressing block (3.3), and a backing plate (3.2) is arranged between the pressing block (3.3) and the pressure head (3.1).
8. The apparatus for intelligent hot press forming of military protective ceramics of claim 7, wherein the compact (3.3) is a composite ceramic compact and the backing plate (3.2) is a tungsten alloy backing plate.
9. The apparatus for intelligent hot press forming of military protective ceramics according to claim 1, wherein the hot press sintered protective sheath (8) is made by carbon fiber winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778858.6A CN111805701A (en) | 2020-08-05 | 2020-08-05 | Intelligent hot-press forming military protective ceramic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778858.6A CN111805701A (en) | 2020-08-05 | 2020-08-05 | Intelligent hot-press forming military protective ceramic equipment |
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| Publication Number | Publication Date |
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| CN111805701A true CN111805701A (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010778858.6A Pending CN111805701A (en) | 2020-08-05 | 2020-08-05 | Intelligent hot-press forming military protective ceramic equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1951873A (en) * | 2005-10-18 | 2007-04-25 | 北京有色金属研究总院 | Thermocompressed sintering and forming method for large size ceramic sputtering target material |
| CN101505557A (en) * | 2009-03-02 | 2009-08-12 | 深圳大学 | Composite electrode crimp and discharging plasma sintering equipment |
| CN102374772A (en) * | 2010-08-06 | 2012-03-14 | 邓湘凌 | Bidirectional hot-pressing high-temperature sintering furnace and working method thereof |
| GB201704133D0 (en) * | 2017-03-15 | 2017-04-26 | Element Six (Uk) Ltd | Sintered polycrystalline cubic boron nitride material |
| CN206479017U (en) * | 2017-01-19 | 2017-09-08 | 河南工程学院 | A kind of fast vacuum hot pressing furnace |
| CN109824368A (en) * | 2018-12-14 | 2019-05-31 | 安泰天龙钨钼科技有限公司 | A kind of method and apparatus of low energy consumption hot pressing production boron nitride-base ceramic |
-
2020
- 2020-08-05 CN CN202010778858.6A patent/CN111805701A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1951873A (en) * | 2005-10-18 | 2007-04-25 | 北京有色金属研究总院 | Thermocompressed sintering and forming method for large size ceramic sputtering target material |
| CN101505557A (en) * | 2009-03-02 | 2009-08-12 | 深圳大学 | Composite electrode crimp and discharging plasma sintering equipment |
| CN102374772A (en) * | 2010-08-06 | 2012-03-14 | 邓湘凌 | Bidirectional hot-pressing high-temperature sintering furnace and working method thereof |
| CN206479017U (en) * | 2017-01-19 | 2017-09-08 | 河南工程学院 | A kind of fast vacuum hot pressing furnace |
| GB201704133D0 (en) * | 2017-03-15 | 2017-04-26 | Element Six (Uk) Ltd | Sintered polycrystalline cubic boron nitride material |
| CN109824368A (en) * | 2018-12-14 | 2019-05-31 | 安泰天龙钨钼科技有限公司 | A kind of method and apparatus of low energy consumption hot pressing production boron nitride-base ceramic |
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Application publication date: 20201023 |
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| RJ01 | Rejection of invention patent application after publication |