CN108844370A - A kind of plasma sintering equipment of MoAlB ceramic block - Google Patents

A kind of plasma sintering equipment of MoAlB ceramic block Download PDF

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Publication number
CN108844370A
CN108844370A CN201810938965.3A CN201810938965A CN108844370A CN 108844370 A CN108844370 A CN 108844370A CN 201810938965 A CN201810938965 A CN 201810938965A CN 108844370 A CN108844370 A CN 108844370A
Authority
CN
China
Prior art keywords
compression bar
interior
mold
sintering equipment
external compression
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
Application number
CN201810938965.3A
Other languages
Chinese (zh)
Inventor
贝国平
董金勇
董峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhong Ming Fu Chi (suzhou) Nanometer High Tech Materials Co Ltd
Original Assignee
Zhong Ming Fu Chi (suzhou) Nanometer High Tech Materials Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhong Ming Fu Chi (suzhou) Nanometer High Tech Materials Co Ltd filed Critical Zhong Ming Fu Chi (suzhou) Nanometer High Tech Materials Co Ltd
Priority to CN201810938965.3A priority Critical patent/CN108844370A/en
Publication of CN108844370A publication Critical patent/CN108844370A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • C04B35/5805—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 borides
    • 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
    • C04B35/64—Burning or sintering processes
    • 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
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • 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
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • F27D2007/066—Vacuum
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
    • F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0018—Cooling of furnaces the cooling medium passing through a pattern of tubes
    • 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
    • F27M2001/03—Charges containing minerals
    • F27M2001/035—China

Abstract

This application provides a kind of plasma sintering equipments of MoAlB ceramic block, including vacuum discharge plasma agglomeration furnace, the cylindric outer mold being arranged in vacuum discharge plasma agglomeration furnace, the cylindric interior mold being arranged in outer mold, the upper and lower ends of the interior mold are respectively inserted with interior compression bar and lower interior compression bar in the cylinder for playing increase pressure and sealing function；The upper and lower ends of the outer mold are respectively inserted with external compression bar and lower external compression bar in the cylinder for playing increase pressure and sealing function, the lower end of the upper external compression bar pushes against the upper end of the upper interior compression bar, the upper end of the lower external compression bar pushes against the lower end of the lower interior compression bar, the upper end of the upper external compression bar is by pressure motor driven on one, the lower end of the lower external compression bar is by pressure motor driven once, the upper end of the upper external compression bar and the lower end of the lower external compression bar are also respectively provided with top electrode and lower electrode, top electrode and lower electrode are electrically connected with direct current pulse power source.

Description

A kind of plasma sintering equipment of MoAlB ceramic block
Technical field
This application involves a kind of plasma sintering equipments of MoAlB ceramic block.
Background technique
In the prior art, MoAlB ceramics are the ternary transition metal borides of nanometer laminated structure, the boride be by It is mingled with what single or double layer Al was staggered to form in transition metal boride Mo-B dot matrix；Since MoAlB ceramics have this spy Different ternary layered structure so that it has conductive, heating conduction well, and has good self-lubrication, wear-resistant With the performances such as easy processing；Its conductivity is higher (2.91 × 106 Ω -1m-1) at room temperature, it also has preferable thermal conductivity (29.21Wm-1K-1), lower thermal expansion coefficient (9.5 × 10-6K-1)；The one kind of MoAlB ceramics as ceramics simultaneously, tool There are the various excellent properties of ceramics, high-temperature stability is good, and intensity hardness is high；Experimental result shows that the MoAlB ceramics are in indifferent gas It is stable when temperature is up to 1400 DEG C in atmosphere；Compared to other transition metal borides, the Vickers hardness of MoAlB compares It is low, it is 9.30 ± 0.44GPa, and the bending strength for measuring it at room temperature is 456.40 ± 19.12MPa；Therefore, MoAlB Ceramics have very big application prospect, high-temperature structural material, ceramic enhancement phase, in terms of all will be extensive Using.In the preparation of our superconductor MoAlB ceramic blocks, influence of the pressure effect to material property is very big, and with routinely Mold prepare sample with SPS, the effective pressure for acting on sample surfaces under pressure effect only has tens megapascal, cannot effectively mention High pressure acts on the compactness of lower material.
Summary of the invention
The application technical problems to be solved are to provide a kind of plasma sintering equipment of MoAlB ceramic block.
In order to solve the above-mentioned technical problem, described this application provides a kind of plasma sintering equipment of MoAlB ceramic block Agglomerating plant include vacuum discharge plasma agglomeration furnace, the cylindric external mold that is arranged in vacuum discharge plasma agglomeration furnace The cylindric interior mold for having, being arranged in the outer mold, the upper and lower ends of the interior mold increase inserted with respectively Interior compression bar and lower interior compression bar in the cylinder of plus-pressure and sealing function；The upper and lower ends of the outer mold respectively inserted with rise Increase external compression bar and lower external compression bar in pressure and the cylinder of sealing function, the lower end of the upper external compression bar pushes against described The upper end of compression bar in upper, the upper end of the lower external compression bar push against the lower end of the lower interior compression bar, and described is upper outer By pressure motor driven on one, the lower end of the lower external compression bar is described by pressure motor driven once for the upper end of compression bar The upper end of upper external compression bar and the lower end of the lower external compression bar be also respectively provided with top electrode and lower electrode, described is upper Electrode and lower electrode are electrically connected with direct current pulse power source.
Preferably, the agglomerating plant further includes one for by the vacuum discharge plasma agglomeration stove evacuation Vacuum evacuation device.
Preferably, the agglomerating plant further includes cooling system, and the cooling system is wrapped in vacuum including one and puts Cooling water pipe on electric plasma agglomeration furnace outer wall, the water tank being connected with the cooling water pipe.
Preferably, the upper interior compression bar includes cylindrical upper internal pressure bar body portion, set on the upper interior compression bar sheet The cylindrical upper projecting portion of body subordinate, the outer wall in the upper internal pressure bar body portion connect with the inner wall of the outer mold Touching, the external of the upper projecting portion are inserted into the interior mold, are in contact with the inner wall of interior mold.
Preferably, the lower interior compression bar includes cylindrical lower internal pressure bar body portion, set on the lower interior compression bar sheet Cylindrical lower convex portion in body portion, the outer wall in the lower internal pressure bar body portion connect with the inner wall of the outer mold Touching, the external of the lower convex portion are inserted into the interior mold, are in contact with the inner wall of interior mold.
Preferably, the lower end of the upper interior compression bar is provided with one layer of upper graphite paper.
Preferably, the lower end of the lower interior compression bar is provided with one layer of lower graphite paper.
Preferably, the agglomerating plant further includes the water for being pumped into water in the water tank in cooling water pipe Pump.
A kind of plasma sintering equipment of MoAlB ceramic block of the application has double stack mold, improves agglomerating plant Leakproofness.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the plasma sintering equipment of MoAlB ceramic block.
Wherein：11, upper external compression bar；12, lower external compression bar；21, upper interior compression bar；22, lower interior compression bar；3, interior mold；4, external mold Tool；51, top electrode；52, lower electrode；61, upper pressure motor；62, force motor is pushed；7, water tank；71, cooling water pipe；8, it takes out true Empty device；9, direct current pulse power source；10, vacuum discharge plasma agglomeration furnace.
Specific embodiment
The application is described further in the following with reference to the drawings and specific embodiments, so that those skilled in the art can be with It more fully understands the application and can be practiced, but illustrated embodiment is not as the restriction to the application.
As shown, this application provides a kind of plasma sintering equipment of MoAlB ceramic block, the agglomerating plant packet Include vacuum discharge plasma agglomeration furnace 10, the cylindric outer mold 4 that is arranged in vacuum discharge plasma agglomeration furnace 10, setting Cylindric interior mold 3 in the outer mold 4, the upper and lower ends of the interior mold 3 increase pressure inserted with respectively Interior compression bar 21 and lower interior compression bar 22 in power and the cylinder of sealing function；The upper and lower ends of the outer mold 4 respectively inserted with External compression bar 11 and lower external compression bar 12 in the cylinder for increasing pressure and sealing function are acted, the lower end of the upper external compression bar 11 is supported The upper end of the tight interior compression bar 21, the upper end of the lower external compression bar 12 push against the lower end of the lower interior compression bar 22 Portion, the upper end of the upper external compression bar 11 are driven by pressure motor 61 on one, and the lower end of the lower external compression bar 12 is by one It pushes force motor 62 to drive, the upper end of the upper external compression bar 11 and the lower end of the lower external compression bar 12 are also respectively set There are top electrode 51 and lower electrode 52, the top electrode 51 and lower electrode 52 are electrically connected with direct current pulse power source 9.The sintering Equipment further includes a vacuum evacuation device 8 for vacuumizing the vacuum discharge plasma agglomeration furnace 10.The sintering Equipment further includes cooling system, the cooling system include one be wrapped in it is cold on 10 outer wall of vacuum discharge plasma agglomeration furnace But water pipe 71, the water tank 7 being connected with the cooling water pipe 71.The upper interior compression bar 21 includes cylindrical upper interior compression bar Body part, the cylindrical upper projecting portion set on the upper internal pressure bar body subordinate, the upper internal pressure bar body portion it is outer Wall is in contact with the inner wall of the outer mold 4, in the external insertion of the upper projecting portion interior mold 3, with internal model The inner wall of tool 3 is in contact.The lower interior compression bar 22 includes cylindrical lower internal pressure bar body portion, set on the lower interior compression bar Cylindrical lower convex portion on body part, the inner wall phase of the outer wall and the outer mold 4 in the lower internal pressure bar body portion Contact, the external of the lower convex portion are inserted into the interior mold 3, are in contact with the inner wall of interior mold 3.Described is upper interior The lower end of compression bar is provided with one layer of upper graphite paper.The lower end of the lower interior compression bar 22 is provided with one layer of lower graphite paper.Institute The agglomerating plant stated further includes a water pump for being pumped into water in the water tank 7 in cooling water pipe 71.
A kind of plasma sintering equipment of MoAlB ceramic block of the application has double stack mold, improves agglomerating plant Leakproofness.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the application, the protection model of the application It encloses without being limited thereto.Those skilled in the art made equivalent substitute or transformation on the basis of the application, in the application Protection scope within.The protection scope of the application is subject to claims.

Claims (8)

1. a kind of plasma sintering equipment of MoAlB ceramic block, which is characterized in that the agglomerating plant includes vacuum discharge etc. Ion sintering furnace, is arranged in the outer mold the cylindric outer mold being arranged in vacuum discharge plasma agglomeration furnace Cylindric interior mold, the upper and lower ends of the interior mold are respectively inserted with acting the cylinder for increasing pressure and sealing function Compression bar and lower interior compression bar in upper；The upper and lower ends of the outer mold are respectively inserted with the cylinder for playing increase pressure and sealing function External compression bar and lower external compression bar in shape, the lower end of the upper external compression bar pushes against the upper end of the upper interior compression bar, described The upper end of lower external compression bar pushes against the lower end of the lower interior compression bar, and the upper end of the upper external compression bar is by pressure electricity on one Machine driving, the lower end of the lower external compression bar by pressure motor driven once, the upper end of the upper external compression bar with it is described The lower end of lower external compression bar be also respectively provided with top electrode and lower electrode, the top electrode and lower electrode and DC pulse Source electrical connection.
2. a kind of plasma sintering equipment of MoAlB ceramic block as described in claim 1, which is characterized in that the sintering Equipment further includes one for by the vacuum evacuation device of the vacuum discharge plasma agglomeration stove evacuation.
3. a kind of plasma sintering equipment of MoAlB ceramic block as claimed in claim 2, which is characterized in that the sintering Equipment further includes cooling system, and the cooling system includes a cooling being wrapped on vacuum discharge plasma agglomeration furnace outer wall Water pipe, the water tank being connected with the cooling water pipe.
4. a kind of plasma sintering equipment of MoAlB ceramic block as claimed in claim 3, which is characterized in that described is upper interior Compression bar includes cylindrical upper internal pressure bar body portion, the cylindrical upper projecting portion set on the upper internal pressure bar body subordinate, The outer wall in the upper internal pressure bar body portion is in contact with the inner wall of the outer mold, the external insertion of the upper projecting portion In the interior mold, it is in contact with the inner wall of interior mold.
5. a kind of plasma sintering equipment of MoAlB ceramic block as claimed in claim 4, which is characterized in that described is lower interior Compression bar includes cylindrical lower internal pressure bar body portion, the cylindrical lower convex portion in the lower internal pressure bar body portion, The outer wall in the lower internal pressure bar body portion is in contact with the inner wall of the outer mold, the external insertion of the lower convex portion In the interior mold, it is in contact with the inner wall of interior mold.
6. a kind of plasma sintering equipment of MoAlB ceramic block as claimed in claim 5, which is characterized in that described is upper interior The lower end of compression bar is provided with one layer of upper graphite paper.
7. a kind of plasma sintering equipment of MoAlB ceramic block as claimed in claim 6, which is characterized in that described is lower interior The lower end of compression bar is provided with one layer of lower graphite paper.
8. a kind of plasma sintering equipment of MoAlB ceramic block as claimed in claim 7, which is characterized in that the sintering Equipment further includes a water pump for being pumped into water in the water tank in cooling water pipe.
CN201810938965.3A 2018-08-17 2018-08-17 A kind of plasma sintering equipment of MoAlB ceramic block Pending CN108844370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810938965.3A CN108844370A (en) 2018-08-17 2018-08-17 A kind of plasma sintering equipment of MoAlB ceramic block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810938965.3A CN108844370A (en) 2018-08-17 2018-08-17 A kind of plasma sintering equipment of MoAlB ceramic block

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111928277A (en) * 2020-07-12 2020-11-13 厦门大学嘉庚学院 Ceramic design is with environment-friendly firing stove of being convenient for porcelain base to get and put

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130015396A (en) * 2011-08-03 2013-02-14 한국생산기술연구원 Manufacturing method of wc sintered-body for friction stir welding(fsw) tool
CN104846229A (en) * 2015-04-21 2015-08-19 太原理工大学 Preparation method of particle-reinforced aluminum alloy-based wear-resistant material
CN107716925A (en) * 2017-09-27 2018-02-23 西北工业大学 A kind of super-pressure anti-slip mould for discharge plasma sintering
CN208952670U (en) * 2018-08-17 2019-06-07 中铭富驰（苏州）纳米高新材料有限公司 A kind of plasma sintering equipment of MoAlB ceramic block

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130015396A (en) * 2011-08-03 2013-02-14 한국생산기술연구원 Manufacturing method of wc sintered-body for friction stir welding(fsw) tool
CN104846229A (en) * 2015-04-21 2015-08-19 太原理工大学 Preparation method of particle-reinforced aluminum alloy-based wear-resistant material
CN107716925A (en) * 2017-09-27 2018-02-23 西北工业大学 A kind of super-pressure anti-slip mould for discharge plasma sintering
CN208952670U (en) * 2018-08-17 2019-06-07 中铭富驰（苏州）纳米高新材料有限公司 A kind of plasma sintering equipment of MoAlB ceramic block

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111928277A (en) * 2020-07-12 2020-11-13 厦门大学嘉庚学院 Ceramic design is with environment-friendly firing stove of being convenient for porcelain base to get and put
CN111928277B (en) * 2020-07-12 2022-07-12 厦门大学嘉庚学院 Ceramic design is with environment-friendly firing stove of being convenient for porcelain base to get and put

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