WO2023010769A1 - Sintering device for use in preparation of low-temperature sintered piezoelectric ceramics - Google Patents

Sintering device for use in preparation of low-temperature sintered piezoelectric ceramics Download PDF

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Publication number
WO2023010769A1
WO2023010769A1 PCT/CN2021/140603 CN2021140603W WO2023010769A1 WO 2023010769 A1 WO2023010769 A1 WO 2023010769A1 CN 2021140603 W CN2021140603 W CN 2021140603W WO 2023010769 A1 WO2023010769 A1 WO 2023010769A1
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Prior art keywords
sintering
mounting block
disc
block
installation block
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PCT/CN2021/140603
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French (fr)
Chinese (zh)
Inventor
田娟娟
史海涛
卓越
金城
王博
王瑞琪
周华勇
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成都凯天电子股份有限公司
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Priority to DE212021000215.3U priority Critical patent/DE212021000215U1/en
Publication of WO2023010769A1 publication Critical patent/WO2023010769A1/en

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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
    • 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
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • 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
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
    • 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
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B5/08—Arrangements of linings
    • 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
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B5/14—Arrangements of heating devices
    • 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

Definitions

  • the invention belongs to the technical field of sintering devices for piezoelectric ceramic materials, in particular to a sintering device for preparing low-temperature sintered piezoelectric ceramics.
  • Piezoelectric ceramics are mainly used in the manufacture of ultrasonic transducers, underwater acoustic transducers, electroacoustic transducers, ceramic filters, ceramic transformers, ceramic frequency discriminators, high voltage generators, infrared detectors, surface acoustic wave devices, electro-optic Devices, ignition and detonation devices and piezoelectric gyroscopes and other equipment.
  • Piezoelectric ceramics are a class of electronic ceramic materials with piezoelectric properties.
  • the main difference from typical piezoelectric quartz crystals that do not contain ferroelectric components is that the crystal phases that make up its main components are all ferroelectric crystal grains. Since ceramics are polycrystalline aggregates with randomly oriented grains, the spontaneous polarization vectors of individual ferroelectric grains are also chaotically oriented. In order for the ceramics to exhibit macroscopic piezoelectric properties, it is necessary to place the piezoelectric ceramics under a strong DC electric field for polarization treatment after they are fired and coated with multiple electrodes on the end faces, so that the original disordered orientation of the respective electrodes The optimal orientation of the vectorization vector is along the direction of the electric field. After the polarization treatment, the piezoelectric ceramics will retain a certain macroscopic remanent polarization strength after the electric field is canceled, so that the ceramics have certain piezoelectric properties.
  • the object of the present invention is to provide a sintering device for preparing low-temperature sintered piezoelectric ceramics, aiming to solve the above problems.
  • a sintering device for preparing low-temperature sintered piezoelectric ceramics including a first power supply, a second power supply, and a first mounting block and a second mounting block arranged in sequence from bottom to top, and the first mounting block is connected to the second mounting block through a lifting mechanism connection; the first installation block and the second installation block are respectively provided with several electric heating plates electrically connected with the second power supply along the inner wall, and the insides of the first installation block and the second installation block are respectively provided with first
  • the sintering tray, the second sintering tray, and the first sintering tray and the second sintering tray constitute a sintering cavity; the inner walls of the first sintering tray and the second sintering tray are respectively provided with a plurality of first placement slots and second sintering slots along arcs.
  • Two placing grooves the two ends of the first placing groove and the second placing groove are respectively provided with first conductive silica gel, and the middle inner walls of the first placing groove and the second placing groove are respectively provided with chrome-nickel conductive wires, several The chromium-nickel conductive wires are electrically connected through the first conductive silica gel, and the chromium-nickel conductive wires of the first sintering disc and the second sintering disc are respectively electrically connected to the positive terminal and the negative terminal of the first power supply.
  • the present invention When the present invention is in use, put the finished blank into the first sintering tray, control the hydraulic cylinder to start, and drive the second installation block and the second sintering tray to move downward, so that the second installation block contacts the first installation block , the second sintering disc is in contact with the first sintering disc until a sealed state is formed between the first mounting block and the second mounting block and between the first sintering disc and the second sintering disc.
  • the chromium-nickel conductive wire in the first sintering disc and the chromium-nickel conductive wire in the second sintering disc are electrically connected through the first conductive silica gel.
  • the electric wires in the first installation block and the electric wires in the second installation block are electrically connected through the second conductive silica gel.
  • Control the first power supply to supply power to the chromium-nickel conductive wire, so that an electric field is generated around the first sintering disk and the second sintering disk;
  • the second power supply controls a plurality of electric heating plates to the cavity between the first mounting block and the second mounting block For even heating.
  • the chromium-nickel conductive wires of the first sintering disc and the second sintering disc respectively pass through the first mounting block and are electrically connected to the positive terminal and the negative terminal of the first power supply. sexual connection.
  • the invention controls the first power supply to supply power to the chrome-nickel conductive wire, so that an electric field is generated around the first sintering disk and the second sintering disk, and under the influence of the electric field, the temperature required for sintering and the time required for sintering are reduced, thereby solving the problem
  • the inside of the first installation block and the second installation block are provided with a communication port along an arc, and the two ends of the communication port of the first installation block and the second installation block
  • the second conductive silica gel is correspondingly provided; the communication port of the second installation block is provided with wires, and the communication port of the first installation block is provided with two wires, which are respectively connected to the positive terminal and the negative terminal of the second power supply.
  • the electric terminals are electrically connected; several electric wires are electrically connected through the second conductive silica gel, and the electric wires are respectively electrically connected with a plurality of electric heating plates.
  • two electric wires in the communication port of the first installation block respectively pass through the first installation block and are connected to the second power supply.
  • the inner two ends of the first installation block are respectively fixedly provided with connecting rods, and the first sintering disc is fixedly arranged between adjacent connecting rods;
  • a support rod is provided, and the bottom of the support rod is fixedly provided with a second sintering disc corresponding to the first sintering disc.
  • the lifting mechanism includes a support block and a hydraulic drive device, the ends of the first installation block and the second installation block on the same side are respectively provided with support blocks, and the adjacent support blocks There is a hydraulic drive device between them.
  • the first mounting block is in sealing contact with or separated from the second mounting block through the lifting mechanism, and correspondingly the first sintering tray is in sealing contact with or separated from the second sintering tray.
  • the two sides of the first installation block are respectively provided with lifting mechanisms.
  • the present invention achieves the control of the first power supply to supply power to the chromium-nickel conductive wire by setting the chromium-nickel conductive wire, so that an electric field is generated around the first sintering disc and the second sintering disc, and the sintering requirement is reduced under the influence of the electric field.
  • the effect of the temperature and the time required for sintering has good practicability;
  • the present invention achieves the effect of heating the cavity between the first mounting block and the second mounting block by controlling a plurality of electric heating plates through the second power source by setting the electric heating plate, and then uniformly sintering the blank, thereby solving the problem of This solves the problem that the distribution of the existing heating elements cannot well make the cavity between the first mounting block and the second mounting block evenly heated.
  • Fig. 1 is the structural representation of sintering equipment of the present invention
  • Fig. 2 is the structural representation of the first mounting block
  • Fig. 3 is a sectional view of the first mounting block
  • Fig. 4 is a sectional view of the second mounting block
  • FIG. 5 is an enlarged view at point A in FIG. 3 .
  • a sintering device for preparing low-temperature sintered piezoelectric ceramics includes a first power supply 3, a second power supply 4, and a first mounting block 5 and a second mounting block 6 arranged sequentially from bottom to top, And the first installation block 5 is connected to the second installation block 6 through the lifting mechanism; the first installation block 5 and the second installation block 6 are respectively provided with a plurality of electric heating plates 14 electrically connected with the second power supply 4 along the inner wall,
  • the inside of the first mounting block 5 and the second mounting block 6 are respectively provided with a first sintering tray 11 and a second sintering tray 13, and the first sintering tray 11 and the second sintering tray 13 constitute a sintering chamber;
  • the inner walls of the first sintering tray 11 and the second sintering tray 13 are respectively provided with a plurality of first placement grooves 15 and second placement grooves 16 along arcs, and the two ends of the first placement grooves 15 and the second placement grooves 16 are respectively
  • the chromium-nickel conductive wires 18 of the first sintering disc 11 and the second sintering disc 13 respectively pass through the first mounting block 5 and are electrically connected to the positive terminal and the negative terminal of the first power supply 3 .
  • the present invention When the present invention is in use, put the finished blank into the first sintering tray 11, control the hydraulic cylinder 10 to start, and drive the second installation block 6 and the second sintering tray 13 to move downward, so that the second installation block 6 and the second sintering tray 13 are moved downward.
  • the first mounting block 5 is in contact
  • the second sintering plate 13 is in contact with the first sintering plate 11 until a seal is formed between the first mounting block 5 and the second mounting block 6 and between the first sintering plate 11 and the second sintering plate 13 state.
  • the chromium-nickel conductive wire 18 in the first sintering disc 11 and the chromium-nickel conductive wire 18 in the second sintering disc 13 are energized through the first conductive silica gel 17 .
  • the electric wires 20 in the first installation block 5 and the electric wires 20 in the second installation block 6 are electrically connected through the second conductive silica gel 21 .
  • Control the first power supply 3 to supply power to the chromium-nickel conductive wire 18, so that an electric field is generated around the first sintering disc 11 and the second sintering disc 13;
  • the second power supply 4 controls a plurality of electric heating plates 14 to the first mounting block 5 and the second
  • the cavity between the mounting blocks 6 is uniformly heated.
  • the present invention controls the first power supply 3 to supply power to the chromium-nickel conductive wire 18 by setting the chromium-nickel conductive wire 18, so that an electric field is generated around the first sintering disk 11 and the second sintering disk 13, and the sintering is reduced under the influence of the electric field.
  • the effect of the required temperature and the time required for sintering has good practicality.
  • Embodiment 1 is optimized on the basis of Embodiment 1.
  • the inside of the first installation block 5 and the second installation block 6 are provided with a communication port 19 along an arc, and the first installation block
  • the two ends of the communication port 19 of the block 5 and the second installation block 6 are respectively provided with a second conductive silica gel 21;
  • the communication port 19 of the second installation block 6 is provided with an electric wire 20, and
  • Two electric wires 20 are arranged in the communication port 19, and are respectively electrically connected to the positive and negative electric terminals of the second power supply 4;
  • several electric wires 20 are electrically connected through the second conductive silica gel 21, and the electric wires 20 are respectively It is electrically connected with a plurality of electric heating plates 14 .
  • the two wires 20 in the communication port 19 of the first installation block 5 respectively pass through the first installation block 5 and are connected to the second power supply 4 .
  • the present invention achieves the effect of heating the cavity between the first mounting block 5 and the second mounting block 6 by controlling a plurality of electric heating plates 14 through the second power supply 4 by setting the electric heating plate 14, and then uniformly sintering the blank. Therefore, the problem that the distribution of the existing heating elements cannot be well provided to uniformly heat the cavity between the first mounting block 5 and the second mounting block 6 is solved, and has better practicability.
  • Embodiment 1 or 2 This embodiment is optimized on the basis of Embodiment 1 or 2, as shown in Figure 2, the inner two ends of the first installation block 5 are respectively fixedly provided with connecting rods 7, and the adjacent connecting rods 7 are fixedly arranged There is a first sintering tray 11 ; a support rod 12 is provided inside the second mounting block 6 , and a second sintering tray 13 is fixedly installed on the bottom of the support rod 12 corresponding to the first sintering tray 11 .
  • the lifting mechanism includes a support block 8, a hydraulic drive device, the first mounting block 5, the second mounting block Two mounting blocks 6 are provided with support blocks 8 at the ends on the same side, and a hydraulic drive device is provided between adjacent support blocks 8 .
  • both sides of the first mounting block 5 are respectively provided with lifting mechanisms.
  • the first mounting block 5 is in sealing contact with or separated from the second mounting block 6 through the lifting mechanism, and the first sintering tray 11 is in sealing contact with or separated from the second sintering tray 13 accordingly.
  • a sintering device for preparing low-temperature sintered piezoelectric ceramics includes several support legs 1, and a mounting plate 2 is fixedly connected between the several support legs 1, and the interior of the mounting plate 2 is respectively
  • the first power supply 3 and the second power supply 4 are fixedly installed, the upper surface of the support leg 1 is fixedly connected with the first installation block 5, and the second installation block 6 is arranged above the first installation block 5, and the first installation block 6
  • An upper surface of a mounting block 5 is in contact with a lower surface of a second mounting block 6 .
  • the two end surfaces of the first installation block 5 and the second installation block 6 are fixedly connected with support blocks 8 respectively, wherein the upper surfaces of the two support blocks 8 of the first installation block 5 are provided with installation openings 9.
  • a hydraulic cylinder 10 is fixedly installed on the inner walls of the two installation ports 9, and the hydraulic cylinder 10 is fixedly connected to the lower surface of the support block 8 of the second installation block 6 through a hydraulic rod.
  • the inner walls at both ends of the first mounting block 5 are fixedly connected with connecting rods 7 , and the opposite end surfaces of the two connecting rods 7 are fixedly connected with first sintering trays 11 ;
  • the inner surface of the second mounting block 6 is fixedly connected with a support rod 12 , and the lower surface of the support rod 12 is fixedly connected with a second sintering tray 13 .
  • the upper surface of the first sintering tray 11 is in contact with the lower surface of the second sintering tray 13, the structure composed of the first mounting block 5 and the second mounting block 6 and the first sintering tray 11 and the second sintering tray 13
  • the constituent structures are all hollow cylinders.
  • the inner walls of the first sintering tray 11 and the second sintering tray 13 are respectively provided with a first placement groove 15 and a second placement groove 16 , and the first placement groove 15 and the second placement groove 16 are respectively opened.
  • the inner walls of both ends of the second placement groove 16 are provided with first conductive silica gel 17, and the middle end inner walls of the first placement groove 15 and the second placement groove 16 are all provided with chromium-nickel conductive wires 18, and a plurality of chromium-nickel conductive wires 18 are arranged.
  • the conductive wire 18 is electrically connected through the first conductive silica gel 17 , and the two ends of the chrome-nickel conductive wire 18 are respectively electrically connected to the positive terminal and the negative terminal of the first power supply 3 .
  • the inner surfaces of the first installation block 5 and the second installation block 6 are provided with electric heating plates 14
  • the inner walls of the first installation block 5 and the second installation block 6 are Both are provided with communication ports 19, and the middle inner walls of the two communication ports 19 are provided with electric wires 20, and the inner walls at both ends of the two communication ports 19 are fixedly connected with second conductive silica gel 21, and the second mounting block 6
  • the two electric wires 20 are electrically connected through the second conductive silica gel 21, and one end of the two electric wires 20 is respectively electrically connected to the positive terminal and the negative terminal of the second power supply 4; the electric wires 20 are respectively connected to A plurality of the electric heating plates 14 are electrically connected.
  • the present invention achieves the effect of heating the cavity between the first mounting block 5 and the second mounting block 6 by controlling a plurality of electric heating plates 14 through the second power supply 4 by setting the electric heating plate 14, and then uniformly sintering the blank. Therefore, the problem that the distribution of the existing heating elements cannot well make the cavity between the first mounting block 5 and the second mounting block 6 evenly heated is solved.
  • the present invention When the present invention is in use, put the finished blank into the first sintering tray 11, control the hydraulic cylinder 10 to start, and drive the second installation block 6 and the second sintering tray 13 to move downward, so that the second installation block 6 and the second sintering tray 13 are moved downward.
  • the first mounting block 5 is in contact
  • the second sintering plate 13 is in contact with the first sintering plate 11 until a seal is formed between the first mounting block 5 and the second mounting block 6 and between the first sintering plate 11 and the second sintering plate 13 state.
  • the chromium-nickel conductive wire 18 in the first sintering disc 11 and the chromium-nickel conductive wire 18 in the second sintering disc 13 are energized through the first conductive silica gel 17 .
  • the electric wires 20 in the first installation block 5 and the electric wires 20 in the second installation block 6 are electrically connected through the second conductive silica gel 21 .
  • the present invention supplies power to the chromium-nickel conductive wire 18 by controlling the first power supply 3, so that an electric field is generated around the first sintering disc 11 and the second sintering disc 13; through the second power supply 4, a plurality of electric heating plates 14 are controlled to the first mounting block 5 and the cavity between the second mounting block 6 is uniformly heated.
  • the present invention controls the first power supply 3 to supply power to the chromium-nickel conductive wire 18 by setting the chromium-nickel conductive wire 18, so that an electric field is generated around the first sintering disk 11 and the second sintering disk 13, and the sintering is reduced under the influence of the electric field.
  • the effect of the required temperature and the time required for sintering has good practicality.

Abstract

Disclosed in the present invention is a sintering device for use in preparation of low-temperature sintered piezoelectric ceramics. The sintering device comprises a first power supply, a second power supply, a first mounting block and a second mounting block. The first mounting block is connected to the second mounting block by means of a lifting mechanism. The first mounting block and the second mounting block are respectively and correspondingly internally provided with a first sintering disc and a second sintering disc, wherein inner walls of the first sintering disc and the second sintering disc are respectively and correspondingly provided, in an arc shape along the inner walls, with a first placement groove and a second placement groove; two ends of the first placement groove and the second placement groove are respectively and correspondingly provided with first electrically conductive silica gel, and inner middle walls of the first placement groove and the second placement groove are respectively provided with chromium-nickel electrically conductive filaments; a plurality of chromium-nickel electrically conductive filaments are electrically connected by means of the first electrically conductive silica gel; and the chromium-nickel electrically conductive filaments are electrically connected to the first power supply. According to the present invention, electric fields are generated around the first sintering disc and the second sintering disc by means of the chromium-nickel electrically conductive filaments, such that the temperature and the time required for sintering are reduced under the effect of the electric fields, and thus the sintering device has good practicability.

Description

一种制备低温烧结压电陶用烧结装置A sintering device for preparing low-temperature sintered piezoelectric ceramics 技术领域technical field
本发明属于压电陶瓷材料烧结装置的技术领域，具体涉及一种制备低温烧结压电陶用烧结装置。The invention belongs to the technical field of sintering devices for piezoelectric ceramic materials, in particular to a sintering device for preparing low-temperature sintered piezoelectric ceramics.
背景技术Background technique
压电陶瓷主要用于制造超声换能器、水声换能器、电声换能器、陶瓷滤波器、陶瓷变压器、陶瓷鉴频器、高压发生器、红外探测器、声表面波器件、电光器件、引燃引爆装置和压电陀螺等设备。Piezoelectric ceramics are mainly used in the manufacture of ultrasonic transducers, underwater acoustic transducers, electroacoustic transducers, ceramic filters, ceramic transformers, ceramic frequency discriminators, high voltage generators, infrared detectors, surface acoustic wave devices, electro-optic Devices, ignition and detonation devices and piezoelectric gyroscopes and other equipment.
压电陶瓷是一类具有压电特性的电子陶瓷材料。与典型的不包含铁电成分的压电石英晶体的主要区别是：构成其主要成分的晶相都是具有铁电性的晶粒。由于陶瓷是晶粒随机取向的多晶聚集体，因此其中各个铁电晶粒的自发极化矢量也是混乱取向的。为了使陶瓷能表现出宏观的压电特性，就必须在压电陶瓷烧成并于端面被复电极之后，将其置于强直流电场下进行极化处理，以使原来混乱取向的各自发极化矢量沿电场方向择优取向。经过极化处理后的压电陶瓷，在电场取消之后，会保留一定的宏观剩余极化强度，从而使陶瓷具有了一定的压电性质。Piezoelectric ceramics are a class of electronic ceramic materials with piezoelectric properties. The main difference from typical piezoelectric quartz crystals that do not contain ferroelectric components is that the crystal phases that make up its main components are all ferroelectric crystal grains. Since ceramics are polycrystalline aggregates with randomly oriented grains, the spontaneous polarization vectors of individual ferroelectric grains are also chaotically oriented. In order for the ceramics to exhibit macroscopic piezoelectric properties, it is necessary to place the piezoelectric ceramics under a strong DC electric field for polarization treatment after they are fired and coated with multiple electrodes on the end faces, so that the original disordered orientation of the respective electrodes The optimal orientation of the vectorization vector is along the direction of the electric field. After the polarization treatment, the piezoelectric ceramics will retain a certain macroscopic remanent polarization strength after the electric field is canceled, so that the ceramics have certain piezoelectric properties.
现有的压电陶瓷在使用过程中，由于长时间使用过程中产生的应力，使得压电陶瓷产生疲劳，压电陶瓷的居里温度都不高，进而使得压电陶瓷的使用寿命减少；且在对压电陶瓷进行烧结时，需要进行长时间的高温烧结，降低了压电陶瓷的加工效率以及增加了烧结炉的能量消耗。During the use of the existing piezoelectric ceramics, due to the stress generated during long-term use, the piezoelectric ceramics are fatigued, and the Curie temperature of the piezoelectric ceramics is not high, thereby reducing the service life of the piezoelectric ceramics; and When sintering piezoelectric ceramics, long-time high-temperature sintering is required, which reduces the processing efficiency of piezoelectric ceramics and increases the energy consumption of the sintering furnace.
发明内容Contents of the invention
本发明的目的在于提供一种制备低温烧结压电陶用烧结装置，旨在解决上述问题。The object of the present invention is to provide a sintering device for preparing low-temperature sintered piezoelectric ceramics, aiming to solve the above problems.
本发明主要通过以下技术方案实现：The present invention mainly realizes through the following technical solutions:
一种制备低温烧结压电陶用烧结装置，包括第一电源、第二电源以及从下至上依次设置的第一安装块、第二安装块，且第一安装块通过升降机构与第二安装块连接；所述第一安装块、第二安装块分别沿内壁设置有若干个与第二电源电性连接的电热板，所述第一安装块、第二安装块的内部分别对应设置有第一烧结盘、第二烧结盘，且第一烧结盘与第二烧结盘构成烧结腔；所述第一烧结盘、第二烧结盘的内壁分别沿弧形对应开设有若干个第一放置槽、第二放置槽，所述第一放置槽、第二放置槽的两端分别对应设置有第一导电硅胶，且第一放置槽、第二放置槽的中部内壁分别设置有铬镍导电丝，若干个铬镍导电丝通过第一导电硅胶电性连接，所述第一烧结盘、第二烧结盘的铬镍导电丝分别与第一电源的正极接电端和负极 接电端电性连接。A sintering device for preparing low-temperature sintered piezoelectric ceramics, including a first power supply, a second power supply, and a first mounting block and a second mounting block arranged in sequence from bottom to top, and the first mounting block is connected to the second mounting block through a lifting mechanism connection; the first installation block and the second installation block are respectively provided with several electric heating plates electrically connected with the second power supply along the inner wall, and the insides of the first installation block and the second installation block are respectively provided with first The sintering tray, the second sintering tray, and the first sintering tray and the second sintering tray constitute a sintering cavity; the inner walls of the first sintering tray and the second sintering tray are respectively provided with a plurality of first placement slots and second sintering slots along arcs. Two placing grooves, the two ends of the first placing groove and the second placing groove are respectively provided with first conductive silica gel, and the middle inner walls of the first placing groove and the second placing groove are respectively provided with chrome-nickel conductive wires, several The chromium-nickel conductive wires are electrically connected through the first conductive silica gel, and the chromium-nickel conductive wires of the first sintering disc and the second sintering disc are respectively electrically connected to the positive terminal and the negative terminal of the first power supply.
本发明在使用时，将排塑完成的毛坯放入第一烧结盘内，控制液压缸启动，带动第二安装块以及第二烧结盘向下移动，使得第二安装块与第一安装块接触，第二烧结盘和第一烧结盘接触，直至第一安装块与第二安装块之间和第一烧结盘和第二烧结盘之间形成密封状态。第一烧结盘内的铬镍导电丝与第二烧结盘内的铬镍导电丝通过第一导电硅胶通电。第一安装块内的电线与第二安装块内的电线通过第二导电硅胶通电。控制第一电源对铬镍导电丝进行供电，使得第一烧结盘和第二烧结盘的周围产生电场；第二电源控制多个电热板对第一安装块和第二安装块之间的腔体进行均匀加热。When the present invention is in use, put the finished blank into the first sintering tray, control the hydraulic cylinder to start, and drive the second installation block and the second sintering tray to move downward, so that the second installation block contacts the first installation block , the second sintering disc is in contact with the first sintering disc until a sealed state is formed between the first mounting block and the second mounting block and between the first sintering disc and the second sintering disc. The chromium-nickel conductive wire in the first sintering disc and the chromium-nickel conductive wire in the second sintering disc are electrically connected through the first conductive silica gel. The electric wires in the first installation block and the electric wires in the second installation block are electrically connected through the second conductive silica gel. Control the first power supply to supply power to the chromium-nickel conductive wire, so that an electric field is generated around the first sintering disk and the second sintering disk; the second power supply controls a plurality of electric heating plates to the cavity between the first mounting block and the second mounting block For even heating.
为了更好地实现本发明，进一步地，所述第一烧结盘、第二烧结盘的铬镍导电丝分别穿过第一安装块并与第一电源的正极接电端和负极接电端电性连接。本发明控制第一电源对铬镍导电丝进行供电，使得第一烧结盘和第二烧结盘的周围产生电场，在电场的影响下降低烧结所需的温度以及烧结所需的时间，从而解决现有的压电陶瓷产生疲劳，压电陶瓷的居里温度都不高，进而使得压电陶瓷的使用寿命减少的以及压电陶瓷进行烧结时，需要进行长时间的高温烧结，降低了压电陶瓷的加工效率以及增加了烧结炉的能量消耗的问题。In order to better realize the present invention, further, the chromium-nickel conductive wires of the first sintering disc and the second sintering disc respectively pass through the first mounting block and are electrically connected to the positive terminal and the negative terminal of the first power supply. sexual connection. The invention controls the first power supply to supply power to the chrome-nickel conductive wire, so that an electric field is generated around the first sintering disk and the second sintering disk, and under the influence of the electric field, the temperature required for sintering and the time required for sintering are reduced, thereby solving the problem Some piezoelectric ceramics produce fatigue, and the Curie temperature of piezoelectric ceramics is not high, which reduces the service life of piezoelectric ceramics, and when piezoelectric ceramics are sintered, long-term high-temperature sintering is required, which reduces the performance of piezoelectric ceramics. The processing efficiency and the problem of increasing the energy consumption of the sintering furnace.
为了更好地实现本发明，进一步地，所述第一安装块、第二安装块的内部均沿弧形设置有连通口，所述第一安装块、第二安装块的连通口的两端分别对应设置有第二导电硅胶；所述第二安装块的连通口内设置有电线，所述第一安装块的连通口内设置有两个电线，且分别与第二电源的正极接电端和负极接电端电性连接；若干个电线通过第二导电硅胶电性连接，且电线分别与多个电热板电性连接。In order to better realize the present invention, further, the inside of the first installation block and the second installation block are provided with a communication port along an arc, and the two ends of the communication port of the first installation block and the second installation block The second conductive silica gel is correspondingly provided; the communication port of the second installation block is provided with wires, and the communication port of the first installation block is provided with two wires, which are respectively connected to the positive terminal and the negative terminal of the second power supply. The electric terminals are electrically connected; several electric wires are electrically connected through the second conductive silica gel, and the electric wires are respectively electrically connected with a plurality of electric heating plates.
为了更好地实现本发明，进一步地，所述第一安装块的连通口内的两个电线分别穿过第一安装块并与第二电源连接。In order to better realize the present invention, further, two electric wires in the communication port of the first installation block respectively pass through the first installation block and are connected to the second power supply.
为了更好地实现本发明，进一步地，所述第一安装块的内部两端分别固定设置有连接杆，相邻连接杆之间固定设置有第一烧结盘；所述第二安装块的内部设置有支撑杆，所述支撑杆的底部对应第一烧结盘固定设置有第二烧结盘。In order to better realize the present invention, further, the inner two ends of the first installation block are respectively fixedly provided with connecting rods, and the first sintering disc is fixedly arranged between adjacent connecting rods; A support rod is provided, and the bottom of the support rod is fixedly provided with a second sintering disc corresponding to the first sintering disc.
为了更好地实现本发明，进一步地，所述升降机构包括支撑块、液压驱动装置，所述第一安装块、第二安装块同侧的端部分别设置有支撑块，相邻支撑块之间设置有液压驱动装置。本发明在使用过程中，通过升降机构使第一安装块与第二安装块密封接触或者分离，相应的使第一烧结盘与第二烧结盘密封接触或者分离打开。In order to better realize the present invention, further, the lifting mechanism includes a support block and a hydraulic drive device, the ends of the first installation block and the second installation block on the same side are respectively provided with support blocks, and the adjacent support blocks There is a hydraulic drive device between them. During the use of the present invention, the first mounting block is in sealing contact with or separated from the second mounting block through the lifting mechanism, and correspondingly the first sintering tray is in sealing contact with or separated from the second sintering tray.
为了更好地实现本发明，进一步地，所述第一安装块的两侧分别设置有升降机构。In order to better realize the present invention, further, the two sides of the first installation block are respectively provided with lifting mechanisms.
本发明的有益效果：Beneficial effects of the present invention:
(1)本发明通过设置铬镍导电丝，达到了控制第一电源对铬镍导电丝进行供电，使得第 一烧结盘和第二烧结盘的周围产生电场，在电场的影响下降低烧结所需的温度以及烧结所需的时间的效果，具有较好的实用性；(1) The present invention achieves the control of the first power supply to supply power to the chromium-nickel conductive wire by setting the chromium-nickel conductive wire, so that an electric field is generated around the first sintering disc and the second sintering disc, and the sintering requirement is reduced under the influence of the electric field. The effect of the temperature and the time required for sintering has good practicability;
(2)本发明通过设置电热板，达到了通过第二电源控制多个电热板对第一安装块和第二安装块之间的腔体内进行加热，进而对毛坯进行均匀烧结的效果，从而解决了现有的加热件的分布不能很好的使第一安装块和第二安装块之间的腔体内均匀受热的问题。(2) The present invention achieves the effect of heating the cavity between the first mounting block and the second mounting block by controlling a plurality of electric heating plates through the second power source by setting the electric heating plate, and then uniformly sintering the blank, thereby solving the problem of This solves the problem that the distribution of the existing heating elements cannot well make the cavity between the first mounting block and the second mounting block evenly heated.
附图说明Description of drawings
图1为本发明烧结设备的结构示意图；Fig. 1 is the structural representation of sintering equipment of the present invention;
图2为第一安装块的结构示意图；Fig. 2 is the structural representation of the first mounting block;
图3为第一安装块的剖视图；Fig. 3 is a sectional view of the first mounting block;
图4为第二安装块的剖视图；Fig. 4 is a sectional view of the second mounting block;
图5为图3中A处的放大图。FIG. 5 is an enlarged view at point A in FIG. 3 .
其中：1、支撑腿；2、安装板；3、第一电源；4、第二电源；5、第一安装块；6、第二安装块；7、连接杆；8、支撑块；9、安装口；10、液压缸；11、第一烧结盘；12、支撑杆；13、第二烧结盘；14、电热板；15、第一放置槽；16、第二放置槽；17、第一导电硅胶；18、铬镍导电丝；19、连通口；20、电线；21、第二导电硅胶。Among them: 1. Support leg; 2. Mounting plate; 3. First power supply; 4. Second power supply; 5. First installation block; 6. Second installation block; 7. Connecting rod; 8. Support block; 9. Installation port; 10. Hydraulic cylinder; 11. First sintering tray; 12. Support rod; 13. Second sintering tray; 14. Electric heating plate; 15. First placement slot; 16. Second placement slot; 17. First placement Conductive silica gel; 18, chrome-nickel conductive wire; 19, connection port; 20, electric wire; 21, second conductive silica gel.
具体实施方式Detailed ways
实施例1：Example 1:
一种制备低温烧结压电陶用烧结装置，如图3-图5所示，包括第一电源3、第二电源4以及从下至上依次设置的第一安装块5、第二安装块6，且第一安装块5通过升降机构与第二安装块6连接；所述第一安装块5、第二安装块6分别沿内壁设置有若干个与第二电源4电性连接的电热板14，所述第一安装块5、第二安装块6的内部分别对应设置有第一烧结盘11、第二烧结盘13，且第一烧结盘11与第二烧结盘13构成烧结腔；所述第一烧结盘11、第二烧结盘13的内壁分别沿弧形对应开设有若干个第一放置槽15、第二放置槽16，所述第一放置槽15、第二放置槽16的两端分别对应设置有第一导电硅胶17，且第一放置槽15、第二放置槽16的中部内壁分别设置有铬镍导电丝18，若干个铬镍导电丝18通过第一导电硅胶17电性连接，所述第一烧结盘11、第二烧结盘13的铬镍导电丝18分别与第一电源3的正极接电端和负极接电端电性连接。A sintering device for preparing low-temperature sintered piezoelectric ceramics, as shown in FIGS. 3-5 , includes a first power supply 3, a second power supply 4, and a first mounting block 5 and a second mounting block 6 arranged sequentially from bottom to top, And the first installation block 5 is connected to the second installation block 6 through the lifting mechanism; the first installation block 5 and the second installation block 6 are respectively provided with a plurality of electric heating plates 14 electrically connected with the second power supply 4 along the inner wall, The inside of the first mounting block 5 and the second mounting block 6 are respectively provided with a first sintering tray 11 and a second sintering tray 13, and the first sintering tray 11 and the second sintering tray 13 constitute a sintering chamber; The inner walls of the first sintering tray 11 and the second sintering tray 13 are respectively provided with a plurality of first placement grooves 15 and second placement grooves 16 along arcs, and the two ends of the first placement grooves 15 and the second placement grooves 16 are respectively The first conductive silica gel 17 is correspondingly provided, and the middle inner walls of the first placement groove 15 and the second placement groove 16 are respectively provided with chromium-nickel conductive wires 18, and several chromium-nickel conductive wires 18 are electrically connected through the first conductive silica gel 17, The chrome-nickel conductive wires 18 of the first sintering disc 11 and the second sintering disc 13 are electrically connected to the positive terminal and the negative terminal of the first power supply 3 respectively.
进一步地，所述第一烧结盘11、第二烧结盘13的铬镍导电丝18分别穿过第一安装块5并与第一电源3的正极接电端和负极接电端电性连接。Further, the chromium-nickel conductive wires 18 of the first sintering disc 11 and the second sintering disc 13 respectively pass through the first mounting block 5 and are electrically connected to the positive terminal and the negative terminal of the first power supply 3 .
本发明在使用时，将排塑完成的毛坯放入第一烧结盘11内，控制液压缸10启动，带动第二安装块6以及第二烧结盘13向下移动，使得第二安装块6与第一安装块5接触，第二烧 结盘13和第一烧结盘11接触，直至第一安装块5与第二安装块6之间和第一烧结盘11和第二烧结盘13之间形成密封状态。第一烧结盘11内的铬镍导电丝18与第二烧结盘13内的铬镍导电丝18通过第一导电硅胶17通电。第一安装块5内的电线20与第二安装块6内的电线20通过第二导电硅胶21通电。控制第一电源3对铬镍导电丝18进行供电，使得第一烧结盘11和第二烧结盘13的周围产生电场；第二电源4控制多个电热板14对第一安装块5和第二安装块6之间的腔体进行均匀加热。When the present invention is in use, put the finished blank into the first sintering tray 11, control the hydraulic cylinder 10 to start, and drive the second installation block 6 and the second sintering tray 13 to move downward, so that the second installation block 6 and the second sintering tray 13 are moved downward. The first mounting block 5 is in contact, and the second sintering plate 13 is in contact with the first sintering plate 11 until a seal is formed between the first mounting block 5 and the second mounting block 6 and between the first sintering plate 11 and the second sintering plate 13 state. The chromium-nickel conductive wire 18 in the first sintering disc 11 and the chromium-nickel conductive wire 18 in the second sintering disc 13 are energized through the first conductive silica gel 17 . The electric wires 20 in the first installation block 5 and the electric wires 20 in the second installation block 6 are electrically connected through the second conductive silica gel 21 . Control the first power supply 3 to supply power to the chromium-nickel conductive wire 18, so that an electric field is generated around the first sintering disc 11 and the second sintering disc 13; the second power supply 4 controls a plurality of electric heating plates 14 to the first mounting block 5 and the second The cavity between the mounting blocks 6 is uniformly heated.
本发明通过设置铬镍导电丝18，达到了控制第一电源3对铬镍导电丝18进行供电，使得第一烧结盘11和第二烧结盘13的周围产生电场，在电场的影响下降低烧结所需的温度以及烧结所需的时间的效果，具有较好的实用性。The present invention controls the first power supply 3 to supply power to the chromium-nickel conductive wire 18 by setting the chromium-nickel conductive wire 18, so that an electric field is generated around the first sintering disk 11 and the second sintering disk 13, and the sintering is reduced under the influence of the electric field. The effect of the required temperature and the time required for sintering has good practicality.
实施例2：Example 2:
本实施例是在实施例1的基础上进行优化，如图3所示，所述第一安装块5、第二安装块6的内部均沿弧形设置有连通口19，所述第一安装块5、第二安装块6的连通口19的两端分别对应设置有第二导电硅胶21；所述第二安装块6的连通口19内设置有电线20，所述第一安装块5的连通口19内设置有两个电线20，且分别与第二电源4的正极接电端和负极接电端电性连接；若干个电线20通过第二导电硅胶21电性连接，且电线20分别与多个电热板14电性连接。This embodiment is optimized on the basis of Embodiment 1. As shown in Figure 3, the inside of the first installation block 5 and the second installation block 6 are provided with a communication port 19 along an arc, and the first installation block The two ends of the communication port 19 of the block 5 and the second installation block 6 are respectively provided with a second conductive silica gel 21; the communication port 19 of the second installation block 6 is provided with an electric wire 20, and Two electric wires 20 are arranged in the communication port 19, and are respectively electrically connected to the positive and negative electric terminals of the second power supply 4; several electric wires 20 are electrically connected through the second conductive silica gel 21, and the electric wires 20 are respectively It is electrically connected with a plurality of electric heating plates 14 .
进一步地，所述第一安装块5的连通口19内的两个电线20分别穿过第一安装块5并与第二电源4连接。Further, the two wires 20 in the communication port 19 of the first installation block 5 respectively pass through the first installation block 5 and are connected to the second power supply 4 .
本发明通过设置电热板14，达到了通过第二电源4控制多个电热板14对第一安装块5和第二安装块6之间的腔体内进行加热，进而对毛坯进行均匀烧结的效果，从而解决了现有的加热件的分布不能很好的使第一安装块5和第二安装块6之间的腔体内均匀受热的问题，具有较好的实用性。The present invention achieves the effect of heating the cavity between the first mounting block 5 and the second mounting block 6 by controlling a plurality of electric heating plates 14 through the second power supply 4 by setting the electric heating plate 14, and then uniformly sintering the blank. Therefore, the problem that the distribution of the existing heating elements cannot be well provided to uniformly heat the cavity between the first mounting block 5 and the second mounting block 6 is solved, and has better practicability.
本实施例的其他部分与实施例1相同，故不再赘述。Other parts of this embodiment are the same as those of Embodiment 1, so details are not repeated here.
实施例3：Example 3:
本实施例是在实施例1或2的基础上进行优化，如图2所示，所述第一安装块5的内部两端分别固定设置有连接杆7，相邻连接杆7之间固定设置有第一烧结盘11；所述第二安装块6的内部设置有支撑杆12，所述支撑杆12的底部对应第一烧结盘11固定设置有第二烧结盘13。This embodiment is optimized on the basis of Embodiment 1 or 2, as shown in Figure 2, the inner two ends of the first installation block 5 are respectively fixedly provided with connecting rods 7, and the adjacent connecting rods 7 are fixedly arranged There is a first sintering tray 11 ; a support rod 12 is provided inside the second mounting block 6 , and a second sintering tray 13 is fixedly installed on the bottom of the support rod 12 corresponding to the first sintering tray 11 .
本实施例的其他部分与上述实施例1或2相同，故不再赘述。Other parts of this embodiment are the same as those of Embodiment 1 or 2 above, so details are not repeated here.
实施例4：Example 4:
本实施例是在实施例1-3任一项的基础上进行优化，如图1、图2所示，所述升降机构包 括支撑块8、液压驱动装置，所述第一安装块5、第二安装块6同侧的端部分别设置有支撑块8，相邻支撑块8之间设置有液压驱动装置。This embodiment is optimized on the basis of any one of Embodiments 1-3, as shown in Figure 1 and Figure 2, the lifting mechanism includes a support block 8, a hydraulic drive device, the first mounting block 5, the second mounting block Two mounting blocks 6 are provided with support blocks 8 at the ends on the same side, and a hydraulic drive device is provided between adjacent support blocks 8 .
进一步地，所述第一安装块5的两侧分别设置有升降机构。本发明在使用过程中，通过升降机构使第一安装块5与第二安装块6密封接触或者分离，相应的使第一烧结盘11与第二烧结盘13密封接触或者分离打开。Further, both sides of the first mounting block 5 are respectively provided with lifting mechanisms. During the use of the present invention, the first mounting block 5 is in sealing contact with or separated from the second mounting block 6 through the lifting mechanism, and the first sintering tray 11 is in sealing contact with or separated from the second sintering tray 13 accordingly.
本实施例的其他部分与上述实施例1-3任一项相同，故不再赘述。Other parts of this embodiment are the same as those of any one of Embodiments 1-3 above, so details are not repeated here.
实施例5：Example 5:
一种制备低温烧结压电陶用烧结装置，如图1、图2所示，包括若干个支撑腿1，若干个支撑腿1之间固定连接有安装板2，所述安装板2的内部分别固定安装有第一电源3和第二电源4，所述支撑腿1的上表面固定连接有第一安装块5，所述第一安装块5的上方设置有第二安装块6，所述第一安装块5的上表面与第二安装块6的下表面相接触。A sintering device for preparing low-temperature sintered piezoelectric ceramics, as shown in Figures 1 and 2, includes several support legs 1, and a mounting plate 2 is fixedly connected between the several support legs 1, and the interior of the mounting plate 2 is respectively The first power supply 3 and the second power supply 4 are fixedly installed, the upper surface of the support leg 1 is fixedly connected with the first installation block 5, and the second installation block 6 is arranged above the first installation block 5, and the first installation block 6 An upper surface of a mounting block 5 is in contact with a lower surface of a second mounting block 6 .
优选地，所述第一安装块5和第二安装块6的两端表面分别对应固定连接有支撑块8，其中第一安装块5的两个所述支撑块8的上表面开设有安装口9，两个所述安装口9的内壁均固定安装有液压缸10，所述液压缸10通过液压杆与第二安装块6的支撑块8的下表面固定连接。Preferably, the two end surfaces of the first installation block 5 and the second installation block 6 are fixedly connected with support blocks 8 respectively, wherein the upper surfaces of the two support blocks 8 of the first installation block 5 are provided with installation openings 9. A hydraulic cylinder 10 is fixedly installed on the inner walls of the two installation ports 9, and the hydraulic cylinder 10 is fixedly connected to the lower surface of the support block 8 of the second installation block 6 through a hydraulic rod.
优选地，如图2所示，所述第一安装块5的两端内壁均固定连接有连接杆7，所述两个所述连接杆7相对的一端表面均固定连接有第一烧结盘11；所述第二安装块6的内表面固定连接有支撑杆12，所述所述支撑杆12的下表面固定连接有第二烧结盘13。所述第一烧结盘11的上表面与第二烧结盘13的下表面相接触，所述第一安装块5与第二安装块6组成的结构和第一烧结盘11与第二烧结盘13组成的结构均为空心圆柱。Preferably, as shown in FIG. 2 , the inner walls at both ends of the first mounting block 5 are fixedly connected with connecting rods 7 , and the opposite end surfaces of the two connecting rods 7 are fixedly connected with first sintering trays 11 ; The inner surface of the second mounting block 6 is fixedly connected with a support rod 12 , and the lower surface of the support rod 12 is fixedly connected with a second sintering tray 13 . The upper surface of the first sintering tray 11 is in contact with the lower surface of the second sintering tray 13, the structure composed of the first mounting block 5 and the second mounting block 6 and the first sintering tray 11 and the second sintering tray 13 The constituent structures are all hollow cylinders.
优选地，如图4、图5所示，所述第一烧结盘11和第二烧结盘13的内壁分别开设有第一放置槽15和第二放置槽16，所述第一放置槽15和第二放置槽16的两端内壁均设置有第一导电硅胶17，所述第一放置槽15和第二放置槽16的中端内壁均设置有铬镍导电丝18，多个所述铬镍导电丝18通过第一导电硅胶17电性连接，所述铬镍导电丝18的两端分别与第一电源3的正极接电端和负极接电端电性连接。Preferably, as shown in FIG. 4 and FIG. 5 , the inner walls of the first sintering tray 11 and the second sintering tray 13 are respectively provided with a first placement groove 15 and a second placement groove 16 , and the first placement groove 15 and the second placement groove 16 are respectively opened. The inner walls of both ends of the second placement groove 16 are provided with first conductive silica gel 17, and the middle end inner walls of the first placement groove 15 and the second placement groove 16 are all provided with chromium-nickel conductive wires 18, and a plurality of chromium-nickel conductive wires 18 are arranged. The conductive wire 18 is electrically connected through the first conductive silica gel 17 , and the two ends of the chrome-nickel conductive wire 18 are respectively electrically connected to the positive terminal and the negative terminal of the first power supply 3 .
优选地，如图3、图5所示，所述第一安装块5和第二安装块6的内表面均设置有电热板14，所述第一安装块5和第二安装块6的内壁均开设有连通口19，两个所述连通口19的中部内壁均设置有电线20，两个所述连通口19的两端内壁均固定连接有第二导电硅胶21，第二安装块6的的两个电线20通过第二导电硅胶21电性连接，且两个所述电线20的一端分别与第二电源4的正极接电端和负极接电端电性连接；所述电线20分别与多个所述电热板14电性连接。本发明通过设置电热板14，达到了通过第二电源4控制多个电热板14对第一 安装块5和第二安装块6之间的腔体内进行加热，进而对毛坯进行均匀烧结的效果，从而解决了现有的加热件的分布不能很好的使第一安装块5和第二安装块6之间的腔体内均匀受热的问题。Preferably, as shown in FIG. 3 and FIG. 5 , the inner surfaces of the first installation block 5 and the second installation block 6 are provided with electric heating plates 14 , and the inner walls of the first installation block 5 and the second installation block 6 are Both are provided with communication ports 19, and the middle inner walls of the two communication ports 19 are provided with electric wires 20, and the inner walls at both ends of the two communication ports 19 are fixedly connected with second conductive silica gel 21, and the second mounting block 6 The two electric wires 20 are electrically connected through the second conductive silica gel 21, and one end of the two electric wires 20 is respectively electrically connected to the positive terminal and the negative terminal of the second power supply 4; the electric wires 20 are respectively connected to A plurality of the electric heating plates 14 are electrically connected. The present invention achieves the effect of heating the cavity between the first mounting block 5 and the second mounting block 6 by controlling a plurality of electric heating plates 14 through the second power supply 4 by setting the electric heating plate 14, and then uniformly sintering the blank. Therefore, the problem that the distribution of the existing heating elements cannot well make the cavity between the first mounting block 5 and the second mounting block 6 evenly heated is solved.
本发明在使用时，将排塑完成的毛坯放入第一烧结盘11内，控制液压缸10启动，带动第二安装块6以及第二烧结盘13向下移动，使得第二安装块6与第一安装块5接触，第二烧结盘13和第一烧结盘11接触，直至第一安装块5与第二安装块6之间和第一烧结盘11和第二烧结盘13之间形成密封状态。第一烧结盘11内的铬镍导电丝18与第二烧结盘13内的铬镍导电丝18通过第一导电硅胶17通电。第一安装块5内的电线20与第二安装块6内的电线20通过第二导电硅胶21通电。本发明通过控制第一电源3对铬镍导电丝18进行供电，使得第一烧结盘11和第二烧结盘13的周围产生电场；通过第二电源4控制多个电热板14对第一安装块5和第二安装块6之间的腔体进行均匀加热。When the present invention is in use, put the finished blank into the first sintering tray 11, control the hydraulic cylinder 10 to start, and drive the second installation block 6 and the second sintering tray 13 to move downward, so that the second installation block 6 and the second sintering tray 13 are moved downward. The first mounting block 5 is in contact, and the second sintering plate 13 is in contact with the first sintering plate 11 until a seal is formed between the first mounting block 5 and the second mounting block 6 and between the first sintering plate 11 and the second sintering plate 13 state. The chromium-nickel conductive wire 18 in the first sintering disc 11 and the chromium-nickel conductive wire 18 in the second sintering disc 13 are energized through the first conductive silica gel 17 . The electric wires 20 in the first installation block 5 and the electric wires 20 in the second installation block 6 are electrically connected through the second conductive silica gel 21 . The present invention supplies power to the chromium-nickel conductive wire 18 by controlling the first power supply 3, so that an electric field is generated around the first sintering disc 11 and the second sintering disc 13; through the second power supply 4, a plurality of electric heating plates 14 are controlled to the first mounting block 5 and the cavity between the second mounting block 6 is uniformly heated.
本发明通过设置铬镍导电丝18，达到了控制第一电源3对铬镍导电丝18进行供电，使得第一烧结盘11和第二烧结盘13的周围产生电场，在电场的影响下降低烧结所需的温度以及烧结所需的时间的效果，具有较好的实用性。The present invention controls the first power supply 3 to supply power to the chromium-nickel conductive wire 18 by setting the chromium-nickel conductive wire 18, so that an electric field is generated around the first sintering disk 11 and the second sintering disk 13, and the sintering is reduced under the influence of the electric field. The effect of the required temperature and the time required for sintering has good practicality.
以上所述，仅是本发明的较佳实施例，并非对本发明做任何形式上的限制，凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化，均落入本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications and equivalent changes made to the above embodiments according to the technical essence of the present invention all fall within the scope of the present invention. within the scope of protection.

Claims (7)

  1. 一种制备低温烧结压电陶用烧结装置，其特征在于，包括第一电源(3)、第二电源(4)以及从下至上依次设置的第一安装块(5)、第二安装块(6)，且第一安装块(5)通过升降机构与第二安装块(6)连接；所述第一安装块(5)、第二安装块(6)分别沿内壁设置有若干个与第二电源(4)电性连接的电热板(14)，所述第一安装块(5)、第二安装块(6)的内部分别对应设置有第一烧结盘(11)、第二烧结盘(13)，且第一烧结盘(11)与第二烧结盘(13)构成烧结腔；所述第一烧结盘(11)、第二烧结盘(13)的内壁分别沿弧形对应开设有若干个第一放置槽(15)、第二放置槽(16)，所述第一放置槽(15)、第二放置槽(16)的两端分别对应设置有第一导电硅胶(17)，且第一放置槽(15)、第二放置槽(16)的中部内壁分别设置有铬镍导电丝(18)，若干个铬镍导电丝(18)通过第一导电硅胶(17)电性连接，所述第一烧结盘(11)、第二烧结盘(13)的铬镍导电丝(18)分别与第一电源(3)的正极接电端和负极接电端电性连接。A sintering device for preparing low-temperature sintered piezoelectric ceramics, characterized in that it includes a first power supply (3), a second power supply (4), and a first mounting block (5) and a second mounting block ( 6), and the first installation block (5) is connected with the second installation block (6) through a lifting mechanism; the first installation block (5) and the second installation block (6) are respectively provided with several The electric heating plate (14) electrically connected to the two power sources (4), the inside of the first mounting block (5) and the second mounting block (6) are respectively provided with a first sintering disc (11) and a second sintering disc (13), and the first sintering tray (11) and the second sintering tray (13) constitute a sintering chamber; the inner walls of the first sintering tray (11) and the second sintering tray (13) are respectively provided along the arc correspondingly with A plurality of first placement grooves (15) and second placement grooves (16), the two ends of the first placement grooves (15) and the second placement grooves (16) are respectively provided with first conductive silica gel (17), And the inner walls of the middle part of the first placement groove (15) and the second placement groove (16) are respectively provided with chromium-nickel conductive wires (18), and several chromium-nickel conductive wires (18) are electrically connected by the first conductive silica gel (17) , the chromium-nickel conductive wires (18) of the first sintering disc (11) and the second sintering disc (13) are respectively electrically connected to the positive terminal and the negative terminal of the first power supply (3).
  2. 根据权利要求1所述的一种制备低温烧结压电陶用烧结装置，其特征在于，所述第一烧结盘(11)、第二烧结盘(13)的铬镍导电丝(18)分别穿过第一安装块(5)并与第一电源(3)的正极接电端和负极接电端电性连接。A kind of sintering device for preparing low-temperature sintered piezoelectric ceramics according to claim 1, characterized in that, the chromium-nickel conductive wires (18) of the first sintering disc (11) and the second sintering disc (13) respectively pass through Pass through the first installation block (5) and be electrically connected with the positive and negative terminals of the first power supply (3).
  3. 根据权利要求1所述的一种制备低温烧结压电陶用烧结装置，其特征在于，所述第一安装块(5)、第二安装块(6)的内部均沿弧形设置有连通口(19)，所述第一安装块(5)、第二安装块(6)的连通口(19)的两端分别对应设置有第二导电硅胶(21)；所述第二安装块(6)的连通口(19)内设置有电线(20)，所述第一安装块(5)的连通口(19)内设置有两个电线(20)，且分别与第二电源(4)的正极接电端和负极接电端电性连接；若干个电线(20)通过第二导电硅胶(21)电性连接，且电线(20)分别与多个电热板(14)电性连接。A sintering device for preparing low-temperature sintered piezoelectric ceramics according to claim 1, characterized in that, the insides of the first mounting block (5) and the second mounting block (6) are provided with communication ports along arcs (19), the two ends of the connecting port (19) of the first installation block (5) and the second installation block (6) are respectively provided with second conductive silica gel (21); the second installation block (6) ) is provided with an electric wire (20) in the communication port (19), and two electric wires (20) are provided in the communication port (19) of the first installation block (5), and are respectively connected to the second power supply (4) The positive terminal and the negative terminal are electrically connected; several electric wires (20) are electrically connected through the second conductive silica gel (21), and the electric wires (20) are respectively electrically connected to a plurality of electric heating plates (14).
  4. 根据权利要求3所述的一种制备低温烧结压电陶用烧结装置，其特征在于，所述第一安装块(5)的连通口(19)内的两个电线(20)分别穿过第一安装块(5)并与第二电源(4)连接。A sintering device for preparing low-temperature sintered piezoelectric ceramics according to claim 3, characterized in that, the two wires (20) in the communicating port (19) of the first mounting block (5) respectively pass through the first A mounting block (5) is connected to the second power source (4).
  5. 根据权利要求1-4任一项所述的一种制备低温烧结压电陶用烧结装置，其特征在于，所述第一安装块(5)的内部两端分别固定设置有连接杆(7)，相邻连接杆(7)之间固定设置有第一烧结盘(11)；所述第二安装块(6)的内部设置有支撑杆(12)，所述支撑杆(12)的底部对应第一烧结盘(11)固定设置有第二烧结盘(13)。A sintering device for preparing low-temperature sintered piezoelectric ceramics according to any one of claims 1-4, characterized in that, the inner two ends of the first mounting block (5) are respectively fixedly provided with connecting rods (7) , the first sintering disc (11) is fixedly arranged between the adjacent connecting rods (7); the inside of the second mounting block (6) is provided with a support rod (12), and the bottom of the support rod (12) corresponds to The first sintering disc (11) is fixedly provided with the second sintering disc (13).
  6. 根据权利要求1所述的一种制备低温烧结压电陶用烧结装置，其特征在于，所述升降机构包括支撑块(8)、液压驱动装置，所述第一安装块(5)、第二安装块(6)同侧的端部分别设置有支撑块(8)，相邻支撑块(8)之间设置有液压驱动装置。A sintering device for preparing low-temperature sintered piezoelectric ceramics according to claim 1, characterized in that, the lifting mechanism includes a support block (8), a hydraulic drive device, the first mounting block (5), the second Ends on the same side of the mounting blocks (6) are respectively provided with support blocks (8), and a hydraulic drive device is provided between adjacent support blocks (8).
  7. 根据权利要求6所述的一种制备低温烧结压电陶用烧结装置，其特征在于，所述第一安装 块(5)的两侧分别设置有升降机构。A kind of sintering device for preparing low-temperature sintered piezoelectric ceramics according to claim 6, characterized in that, both sides of the first mounting block (5) are respectively provided with lifting mechanisms.
PCT/CN2021/140603 2021-08-05 2021-12-22 Sintering device for use in preparation of low-temperature sintered piezoelectric ceramics WO2023010769A1 (en)

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