WO2013177860A1 - Automatic tester for thermal shock resistance of ceramic material - Google Patents

Automatic tester for thermal shock resistance of ceramic material Download PDF

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Publication number
WO2013177860A1
WO2013177860A1 PCT/CN2012/079059 CN2012079059W WO2013177860A1 WO 2013177860 A1 WO2013177860 A1 WO 2013177860A1 CN 2012079059 W CN2012079059 W CN 2012079059W WO 2013177860 A1 WO2013177860 A1 WO 2013177860A1
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WO
WIPO (PCT)
Prior art keywords
thermal shock
shock resistance
heating
heating device
automatic
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Application number
PCT/CN2012/079059
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French (fr)
Chinese (zh)
Inventor
郭露村
李恺
耿龙兴
史东春
Original Assignee
南京工业大学
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Application filed by 南京工业大学 filed Critical 南京工业大学
Publication of WO2013177860A1 publication Critical patent/WO2013177860A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes

Definitions

  • the present invention relates to a device in the field of testing technology, and more particularly to an experimental device for testing the thermal shock resistance of a ceramic material.
  • Thermal shock resistance refers to the ability of a material to withstand rapid changes in temperature without damaging or failing. Ceramic materials are often subjected to thermal shocks due to changes in ambient temperature during processing or use, so thermal shock resistance is a ceramic book.
  • the primary problem in the thermal shock resistance test method is that the sample needs to be manually placed repeatedly during the quenching and hot cycle, and the automatic operation function is lacking.
  • the continuity of multiple cycles of thermal shock is poor, which makes the test cycle long and the entire test operation process is time consuming.
  • the third is the holding time of the sample in the heating furnace.
  • the quenching speed and cooling time during the thermal shock process are poorly controllable, resulting in poor repeatability of the test data and reduced experimental precision.
  • the thermal shock quenching method is relatively simple and has a narrow application range.
  • the present invention develops an automatic thermal shock resistance tester for ceramic materials for testing and characterizing the thermal shock resistance of ceramic materials. Through the ceramic thermal shock resistance test, understand the failure of ceramic materials after thermal shock Points and conditions for predicting the reliability and longevity of their components are provided.
  • a ceramic material thermal shock resistance automatic tester comprising:
  • a reciprocating moving device for transporting ceramic test samples repeatedly into and out of the heating device
  • the automatic operation control device is used for controlling the number, frequency, heating time and cooling time of the reciprocating movement of the ceramic test sample repeatedly entering and leaving the heating device;
  • the reciprocating device is disposed on the bracket, and the reciprocating device is provided with a sample basket 5, and the heating device is a hollow structure, and the sample basket 5 is driven into and out of the heating device by the reciprocating device, and the cooling device is located at the outlet end of the heating device. .
  • the reciprocating moving device comprises a lifting rod 1 and a lifting drive device 2, the heating device is a heater 6, the cooling device is a coolant tank 9 and/or a blower 10, and the lifting drive device 2 is arranged above the bracket 4, the lifting drive device 2 is connected with a lifting rod 1 , the sample basket 5 is arranged at the lower end of the lifting rod 1 , the heater 6 is arranged below the lifting drive device 2 , the inside of the heater 6 is vertically connected, and the coolant tank 9 is arranged below the heater 6 , the coolant tank The side of the 9 is equipped with a blower 10.
  • the operation mode of the heater for up and down of the heater can be changed as appropriate, and the operation mode of the horizontal inlet and outlet heater is changed.
  • the improvements made are also within the scope of the invention.
  • the heater 6 includes an outer heat insulating material 7 and an inner heating body 8 disposed on the heat insulating material 7.
  • a temperature sensor 12 is provided in the heater 6.
  • a limit switch 11 is disposed on the bracket 4 .
  • the ceramic material thermal shock resistance automatic tester further includes a control box 3, and the automatic operation control device is disposed in the control box 3.
  • the bracket 4 is provided with a stroke switch, and the stroke switch comprises a positive stroke switch and a negative stroke switch for controlling the stroke of the reciprocating movement of the lifting rod 1.
  • a test method for an automatic thermal shock resistance tester for a ceramic material comprising: a step of heating a time t1 in a high temperature T2 environment in which a test sample is placed in a heating device;
  • Cooling time t2 of the test sample in a low temperature T1 environment in the cooling device
  • the automatic operation control device controls the number of times, the frequency, the heating time t1, and the cooling time t2 of the reciprocating moving device to drive the test sample repeatedly into and out of the heating device and the cooling device.
  • the ceramic material thermal shock resistance automatic tester of the invention can realize all automatic and precise control automatically and continuously, without manual intervention in the testing process, greatly saving time and improving test efficiency, and the invention is for heating temperature, heating time, lifting rod lifting rate, Various parameters such as blower power, wind speed, and coolant temperature can be set and controlled.
  • the test accuracy is high, and the sudden temperature change suffered by the ceramic material can be simulated realistically, and the cracking, peeling, and breaking of the ceramic material can be objectively manufactured. It has a positive effect on the evaluation of the thermal shock resistance of ceramic materials.
  • FIG. 1 is a schematic view showing the structure of an embodiment of the present invention before heating.
  • Fig. 2 is a schematic view showing the structure of the test heating in the embodiment of the present invention.
  • Fig. 3 is a schematic view showing the structure of the embodiment of the present invention at the time of test cooling.
  • 1 is the lifting rod
  • 2 is the lifting drive
  • 3 is the control box
  • 4 is the bracket
  • 5 is the sample basket
  • 6 is the heater
  • 7 is the insulation material
  • 8 is the heating body
  • 9 is the coolant tank
  • 1 0 is the blower
  • 1 1 is the limit switch
  • 12 is the temperature sensor.
  • a ceramic material thermal shock resistance automatic tester comprising:
  • a reciprocating moving device for transporting ceramic test samples repeatedly into and out of the heating device
  • the automatic operation control device is used for controlling the number, frequency, heating time and cooling time of the reciprocating movement of the ceramic test sample repeatedly entering and leaving the heating device;
  • the reciprocating device is disposed on the bracket, and the reciprocating device is provided with a sample basket 5, and the heating device is a hollow structure, and the sample basket 5 is driven into and out of the heating device by the reciprocating device, and the cooling device is located at the outlet end of the heating device. .
  • the reciprocating moving device comprises a lifting rod 1 and a lifting drive device 2, the heating device is a heater 6, the cooling device is a coolant tank 9 and/or a blower 10, and the lifting drive device 2 is arranged above the bracket 4, the lifting drive device 2 is connected with a lifting rod 1 , the sample basket 5 is arranged at the lower end of the lifting rod 1 , the heater 6 is arranged below the lifting drive device 2 , the inside of the heater 6 is vertically connected, and the coolant tank 9 is arranged below the heater 6 , the coolant tank The side of the 9 is equipped with a blower 10.
  • the operation mode of the heater for up and down of the heater can be changed as appropriate, and the operation mode of the horizontal inlet and outlet heater is changed.
  • the improvements made are also within the scope of the invention.
  • the heater 6 includes an outer heat insulating material 7 and an inner heating body 8 disposed on the heat insulating material 7.
  • a temperature sensor 12 is provided in the heater 6.
  • a limit switch 1 1 is disposed on the bracket 4.
  • the ceramic material thermal shock resistance automatic tester further includes a control box 3, and the automatic operation control device is disposed in the control box 3.
  • the bracket 4 is provided with a stroke switch, and the stroke switch comprises a positive stroke switch and a negative stroke switch for controlling the stroke of the reciprocating movement of the lifting rod 1.
  • the invention also provides a test method for an automatic thermal shock resistance tester for ceramic materials, which comprises the following features:
  • test sample is placed in a high temperature T2 environment in a heating device for a heating time t1;
  • Cooling time t2 of the test sample in a low temperature T1 environment in the cooling device
  • the automatic operation control device controls the number of times, the frequency, the heating time t1, and the cooling time t2 of the reciprocating moving device to drive the test sample repeatedly into and out of the heating device and the cooling device.
  • test samples are unified into a long shape according to the national standard test method of bending strength, and the dimensions are 3 ⁇ 0.2 mm in thickness, 4 ⁇ 0.2 mm in width, and 35111111 in length.
  • the number of test samples per group is five.
  • High temperature T2 room temperature to 1200 degrees
  • low temperature T1 0 degree or lower water
  • oil cooling T1 to T2 speed controllable
  • tl residence time t2
  • the lifting drive 2 drives the lifting rod 1 to move up and down, and through the limit switch 1 1, controls the sample basket 5 containing the ceramic material to be tested under the driving lifting rod 1 to reach each designated position.
  • the sample basket 5 enters the heater 6 to be heated to a predetermined temperature, and then moves out of the heater 6, and the sample basket 5 is placed in the coolant tank 9 or the blower 10 is placed between the coolant tank 9 and the heater 6.
  • the ceramic material to be tested in the sample basket 5 is air-cooled, liquid-cooled or air-cooled and liquid-cooled, and the coolant tank 9 contains a cooling medium such as water or oil. After the ceramic material to be tested is cooled, it is lifted into the heater 6 by the lifting rod 1 to be heated, and the cycle is repeated several times until the end of the test.

Abstract

An automatic tester for the thermal shock resistance of a ceramic material comprises: a bracket (4), a reciprocating device, a heating device (6), a cooling device and an automatic operation control device. The reciprocating device is arranged on the bracket (4) and provided with a sample basket (5) at one end thereof; the heating device (6) has a hollow structure, so that the sample basket (5) driven by the reciprocating device can pass in and out the interior of the heating device (6); the cooling device is positioned at the outlet end of the heating device (6). The automatic tester for the thermal shock resistance of the ceramic material can realize fully automatic precise control, and no artificial participation is required during a testing process, thereby greatly saving time and improving the testing efficiency; Besides, the automatic tester has a positive effect on evaluating the thermal shock resistance of the ceramic material.

Description

陶瓷材料抗热震性自动测试仪  Ceramic material thermal shock resistance automatic tester
技术领域 本发明涉及的是一种测试技术领域的装置， 特别是一种测试陶瓷材料抗热 震性能的实验装置。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device in the field of testing technology, and more particularly to an experimental device for testing the thermal shock resistance of a ceramic material.
背景技术 说 抗热震性能是指材料承受温度急剧变化而不致破坏或失效的能力。 陶瓷材 料在加工或使用过程中， 经常受到环境温度变化的热冲击， 因此抗热震性是陶 书 BACKGROUND OF THE INVENTION Thermal shock resistance refers to the ability of a material to withstand rapid changes in temperature without damaging or failing. Ceramic materials are often subjected to thermal shocks due to changes in ambient temperature during processing or use, so thermal shock resistance is a ceramic book.
瓷材料的一个重要的性能， 它成为陶瓷众多优异性能能否得到充分发挥的制约 因素， 也是决定陶瓷材料可靠性和使用寿命的关键因素之一。 影响陶瓷抗热震 性能的因素比较复杂， 虽然对其抗热震性有一定的理论解释， 但是尚不完善， 至今还未建立一个反映材料实际抗热震性能的评价方法。 因此， 对抗热震性能 的评价主要依靠实验测定的方法。 由于缺乏统一的测试评价方法， 导致了现有 的陶瓷抗热震性能测试仪存在一定的弊端。 An important property of porcelain materials, it becomes a limiting factor for the full performance of many ceramic properties, and is one of the key factors determining the reliability and service life of ceramic materials. The factors affecting the thermal shock resistance of ceramics are complicated. Although there is a certain theoretical explanation for its thermal shock resistance, it is still not perfect. So far, an evaluation method reflecting the actual thermal shock resistance of materials has not been established. Therefore, the evaluation against thermal shock performance mainly relies on experimental methods. Due to the lack of a unified test evaluation method, the existing ceramic thermal shock resistance tester has certain drawbacks.
目前抗热震性测试方法所存在首要的问题是急冷急热循环过程中需要反复 手动放置试样， 缺乏自动操作功能。 二是的多次循环热震的连续性差， 使得试 验周期长， 整个试验操作过程较为费时。 三是试样在加热炉中的保温时间， 热 震过程中的急冷速度和冷却时间可控性差， 导致了测试的数据可重复性差， 降 低了实验精度。 四是热震急冷方式较为单一， 适用范围窄。  At present, the primary problem in the thermal shock resistance test method is that the sample needs to be manually placed repeatedly during the quenching and hot cycle, and the automatic operation function is lacking. Second, the continuity of multiple cycles of thermal shock is poor, which makes the test cycle long and the entire test operation process is time consuming. The third is the holding time of the sample in the heating furnace. The quenching speed and cooling time during the thermal shock process are poorly controllable, resulting in poor repeatability of the test data and reduced experimental precision. Fourth, the thermal shock quenching method is relatively simple and has a narrow application range.
发明内容 本发明开发了一种陶瓷材料抗热震性自动测试仪用来测试和表征陶瓷材料 的抗热震性能。 通过陶瓷抗热震性能试验， 了解陶瓷材料经受热震后的失效特 点以及对其构件使用可靠性和寿命的预测提供了条件。 SUMMARY OF THE INVENTION The present invention develops an automatic thermal shock resistance tester for ceramic materials for testing and characterizing the thermal shock resistance of ceramic materials. Through the ceramic thermal shock resistance test, understand the failure of ceramic materials after thermal shock Points and conditions for predicting the reliability and longevity of their components are provided.
本发明的技术方案是：  The technical solution of the present invention is:
一种陶瓷材料抗热震性自动测试仪， 是包括：  A ceramic material thermal shock resistance automatic tester, comprising:
支架 4; Bracket 4;
往复移动装置， 用于运送陶瓷试验样品反复进出加热装置内部； a reciprocating moving device for transporting ceramic test samples repeatedly into and out of the heating device;
加热装置， 用于加热陶瓷试验样品； a heating device for heating the ceramic test sample;
冷却装置， 用于冷却被加热的陶瓷试验样品； a cooling device for cooling the heated ceramic test sample;
自动运行控制装置， 用于控制往复移动装带动陶瓷试验样品反复进出加热装置 的次数、 频率、 加热时间、 冷却时间； The automatic operation control device is used for controlling the number, frequency, heating time and cooling time of the reciprocating movement of the ceramic test sample repeatedly entering and leaving the heating device;
所述往复移动装置设置在支架上， 往复移动装置一段设置有样品篮 5， 加热装置 为中空结构， 供样品篮 5在往复移动装置的带动下进出加热装置内部， 冷却装 置位于加热装置的出口端。 The reciprocating device is disposed on the bracket, and the reciprocating device is provided with a sample basket 5, and the heating device is a hollow structure, and the sample basket 5 is driven into and out of the heating device by the reciprocating device, and the cooling device is located at the outlet end of the heating device. .
所述往复移动装置包括升降杆 1和升降驱动装置 2， 加热装置为加热器 6、 冷却装置为冷却液箱 9和 /或鼓风机 10，所述升降驱动装置 2设置在支架 4上方， 升降驱动装置 2上连接有升降杆 1， 样品篮 5设置在升降杆 1 下端， 加热器 6 设置在升降驱动装置 2下方， 加热器 6内部上下贯通， 加热器 6下方设有冷却 液箱 9， 冷却液箱 9侧方设有鼓风机 1 0。  The reciprocating moving device comprises a lifting rod 1 and a lifting drive device 2, the heating device is a heater 6, the cooling device is a coolant tank 9 and/or a blower 10, and the lifting drive device 2 is arranged above the bracket 4, the lifting drive device 2 is connected with a lifting rod 1 , the sample basket 5 is arranged at the lower end of the lifting rod 1 , the heater 6 is arranged below the lifting drive device 2 , the inside of the heater 6 is vertically connected, and the coolant tank 9 is arranged below the heater 6 , the coolant tank The side of the 9 is equipped with a blower 10.
实施例中的为上下进出加热器的工作方式， 也可以适当变换， 改称水平进出 加热器的工作方式。 其所作改进也属于本发明的保护范围。  In the embodiment, the operation mode of the heater for up and down of the heater can be changed as appropriate, and the operation mode of the horizontal inlet and outlet heater is changed. The improvements made are also within the scope of the invention.
所述加热器 6内包括外部的保温材料 7和设置在保温材料 7的内部加热体 8。 所述加热器 6内设有温度传感器 12。  The heater 6 includes an outer heat insulating material 7 and an inner heating body 8 disposed on the heat insulating material 7. A temperature sensor 12 is provided in the heater 6.
所述支架 4上设有限位开关 1 1。 所述陶瓷材料抗热震性自动测试仪还包括控制箱 3, 自动运行控制装置设置 在控制箱 3内。 A limit switch 11 is disposed on the bracket 4 . The ceramic material thermal shock resistance automatic tester further includes a control box 3, and the automatic operation control device is disposed in the control box 3.
所述支架 4上设有行程开关， 行程开关包括正行程开关和负行程开关， 用于 控制升降杆 1往复运动的行程。  The bracket 4 is provided with a stroke switch, and the stroke switch comprises a positive stroke switch and a negative stroke switch for controlling the stroke of the reciprocating movement of the lifting rod 1.
一种陶瓷材料抗热震性自动测试仪的测试方法， 其特征在于包括： 将测试样品放置在加热装置中的高温 T2环境下加热时间 tl的歩骤；  A test method for an automatic thermal shock resistance tester for a ceramic material, comprising: a step of heating a time t1 in a high temperature T2 environment in which a test sample is placed in a heating device;
将测试样品通过往复移动装置从加热装置移动到冷却装置的歩骤； a step of moving a test sample from the heating device to the cooling device through a reciprocating moving device;
将测试样品在冷却装置中的低温 T1环境下冷却时间 t2的歩骤； Cooling time t2 of the test sample in a low temperature T1 environment in the cooling device;
将测试样品通过往复移动装置从冷却装置移动到加热装置的歩骤； a step of moving the test sample from the cooling device to the heating device through the reciprocating moving device;
由自动运行控制装置控制往复移动装置带动试验样品反复进出加热装置和冷却 装置的次数、 频率、 加热时间 tl、 冷却时间 t2的歩骤。 The automatic operation control device controls the number of times, the frequency, the heating time t1, and the cooling time t2 of the reciprocating moving device to drive the test sample repeatedly into and out of the heating device and the cooling device.
本发明的有益效果是：  The beneficial effects of the invention are:
本发明的陶瓷材料抗热震性自动测试仪可自动、 连续实现全部自动化精确 控制， 测试过程中无需人工参与， 大大节省时间， 提高测试效率， 本发明对于 加热温度、 加热时间、 拉杆升降速率、 鼓风机功率、 风速、 冷却液温度等多项 参数均可设定控制。 测试准确性高， 可以真实模拟陶瓷材料遭受的急剧温度变 化， 可以客观地制造陶瓷材料的开裂、 剥落、 断裂等状况。 对评价陶瓷材料的 热抗震性具有积极的作用。 附图说明  The ceramic material thermal shock resistance automatic tester of the invention can realize all automatic and precise control automatically and continuously, without manual intervention in the testing process, greatly saving time and improving test efficiency, and the invention is for heating temperature, heating time, lifting rod lifting rate, Various parameters such as blower power, wind speed, and coolant temperature can be set and controlled. The test accuracy is high, and the sudden temperature change suffered by the ceramic material can be simulated realistically, and the cracking, peeling, and breaking of the ceramic material can be objectively manufactured. It has a positive effect on the evaluation of the thermal shock resistance of ceramic materials. DRAWINGS
图 1是本发明的实施例的测试加热前的结构示意图。  BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of an embodiment of the present invention before heating.
图 2是本发明的实施例的测试加热中的结构示意图。 图 3是本发明的实施例的测试冷却时的结构示意图。 Fig. 2 is a schematic view showing the structure of the test heating in the embodiment of the present invention. Fig. 3 is a schematic view showing the structure of the embodiment of the present invention at the time of test cooling.
图中： 1为升降杆、 2为升降驱动装置、 3为控制箱、 4为支架、 5为样品篮、 6为加热器、 7为保温材料、 8为加热体、 9为冷却液箱、 1 0为鼓风机、 1 1为限位 开关、 12为温度传感器。 具体实 式  In the figure: 1 is the lifting rod, 2 is the lifting drive, 3 is the control box, 4 is the bracket, 5 is the sample basket, 6 is the heater, 7 is the insulation material, 8 is the heating body, 9 is the coolant tank, 1 0 is the blower, 1 1 is the limit switch, and 12 is the temperature sensor. Specific form
下面结合附图对本发明作进一歩描述：  The present invention will be further described below with reference to the accompanying drawings:
一种陶瓷材料抗热震性自动测试仪， 是包括：  A ceramic material thermal shock resistance automatic tester, comprising:
支架 4; Bracket 4;
往复移动装置， 用于运送陶瓷试验样品反复进出加热装置内部； a reciprocating moving device for transporting ceramic test samples repeatedly into and out of the heating device;
加热装置， 用于加热陶瓷试验样品； a heating device for heating the ceramic test sample;
冷却装置， 用于冷却被加热的陶瓷试验样品； a cooling device for cooling the heated ceramic test sample;
自动运行控制装置， 用于控制往复移动装带动陶瓷试验样品反复进出加热装置 的次数、 频率、 加热时间、 冷却时间； The automatic operation control device is used for controlling the number, frequency, heating time and cooling time of the reciprocating movement of the ceramic test sample repeatedly entering and leaving the heating device;
所述往复移动装置设置在支架上， 往复移动装置一段设置有样品篮 5， 加热装置 为中空结构， 供样品篮 5在往复移动装置的带动下进出加热装置内部， 冷却装 置位于加热装置的出口端。 The reciprocating device is disposed on the bracket, and the reciprocating device is provided with a sample basket 5, and the heating device is a hollow structure, and the sample basket 5 is driven into and out of the heating device by the reciprocating device, and the cooling device is located at the outlet end of the heating device. .
所述往复移动装置包括升降杆 1和升降驱动装置 2， 加热装置为加热器 6、 冷却装置为冷却液箱 9和 /或鼓风机 10，所述升降驱动装置 2设置在支架 4上方， 升降驱动装置 2上连接有升降杆 1， 样品篮 5设置在升降杆 1 下端， 加热器 6 设置在升降驱动装置 2下方， 加热器 6内部上下贯通， 加热器 6下方设有冷却 液箱 9， 冷却液箱 9侧方设有鼓风机 1 0。 实施例中的为上下进出加热器的工作方式， 也可以适当变换， 改称水平进出 加热器的工作方式。 其所作改进也属于本发明的保护范围。 The reciprocating moving device comprises a lifting rod 1 and a lifting drive device 2, the heating device is a heater 6, the cooling device is a coolant tank 9 and/or a blower 10, and the lifting drive device 2 is arranged above the bracket 4, the lifting drive device 2 is connected with a lifting rod 1 , the sample basket 5 is arranged at the lower end of the lifting rod 1 , the heater 6 is arranged below the lifting drive device 2 , the inside of the heater 6 is vertically connected, and the coolant tank 9 is arranged below the heater 6 , the coolant tank The side of the 9 is equipped with a blower 10. In the embodiment, the operation mode of the heater for up and down of the heater can be changed as appropriate, and the operation mode of the horizontal inlet and outlet heater is changed. The improvements made are also within the scope of the invention.
所述加热器 6内包括外部的保温材料 7和设置在保温材料 7的内部加热体 8。 所述加热器 6内设有温度传感器 12。  The heater 6 includes an outer heat insulating material 7 and an inner heating body 8 disposed on the heat insulating material 7. A temperature sensor 12 is provided in the heater 6.
所述支架 4上设有限位开关 1 1。  A limit switch 1 1 is disposed on the bracket 4.
所述陶瓷材料抗热震性自动测试仪还包括控制箱 3, 自动运行控制装置设置 在控制箱 3内。  The ceramic material thermal shock resistance automatic tester further includes a control box 3, and the automatic operation control device is disposed in the control box 3.
所述支架 4上设有行程开关， 行程开关包括正行程开关和负行程开关， 用于 控制升降杆 1往复运动的行程。  The bracket 4 is provided with a stroke switch, and the stroke switch comprises a positive stroke switch and a negative stroke switch for controlling the stroke of the reciprocating movement of the lifting rod 1.
本发明还提供一种陶瓷材料抗热震性自动测试仪的测试方法， 其特征在于 包括：  The invention also provides a test method for an automatic thermal shock resistance tester for ceramic materials, which comprises the following features:
将测试样品放置在加热装置中的高温 T2环境下加热时间 tl的歩骤； The test sample is placed in a high temperature T2 environment in a heating device for a heating time t1;
将测试样品通过往复移动装置从加热装置移动到冷却装置的歩骤； a step of moving a test sample from the heating device to the cooling device through a reciprocating moving device;
将测试样品在冷却装置中的低温 T1环境下冷却时间 t2的歩骤； Cooling time t2 of the test sample in a low temperature T1 environment in the cooling device;
将测试样品通过往复移动装置从冷却装置移动到加热装置的歩骤； a step of moving the test sample from the cooling device to the heating device through the reciprocating moving device;
由自动运行控制装置控制往复移动装置带动试验样品反复进出加热装置和冷却 装置的次数、 频率、 加热时间 tl、 冷却时间 t2的歩骤。 The automatic operation control device controls the number of times, the frequency, the heating time t1, and the cooling time t2 of the reciprocating moving device to drive the test sample repeatedly into and out of the heating device and the cooling device.
为了减小样品几何形状对测试结果的影响， 测试样品依据弯曲强度国家标 准测试方法统一为长条形状， 尺寸规格为厚度 3 ±0.2mm， 宽度为 4±0.2mm， 试样长度 35111111。 每组测试样品的数量为 5根。  In order to reduce the influence of the sample geometry on the test results, the test samples are unified into a long shape according to the national standard test method of bending strength, and the dimensions are 3 ± 0.2 mm in thickness, 4 ± 0.2 mm in width, and 35111111 in length. The number of test samples per group is five.
热震测试温差为 Δ Τ=600Ό加热炉温与水温的温差值， 分别测试出 5次、 10 次、 20次、 30次循环热震后样品的残余弯曲强度值。 高温 T2: 室温至 1200度， 低温 T1 : 0度或更低温度的水、 油里冷却， T1至 T2 之间速度可控、 tl停留时间、 t2 The thermal shock test temperature difference is Δ Τ = 600 Ό the temperature difference between the heating furnace temperature and the water temperature, and the residual bending strength values of the samples after 5, 10, 20, and 30 cycles of thermal shock were tested. High temperature T2: room temperature to 1200 degrees, low temperature T1: 0 degree or lower water, oil cooling, T1 to T2 speed controllable, tl residence time, t2
实验歩骤： Experimental steps:
1、 在准备好测试样品之后， 将加热炉的温度设定为所需温度， 开启加热炉。 1. After preparing the test sample, set the temperature of the furnace to the desired temperature and turn on the furnace.
2、 将样品水平放入试样筐， 在设定温度下保温 2min后， 样品随试样筐在 7s内 自动落入水中， 在水中保持 10s后， 经过 14s回升至加热炉中。 一次热震过程2. Place the sample horizontally into the sample basket. After holding at the set temperature for 2 minutes, the sample will automatically fall into the water within 7s with the sample basket. After being kept in the water for 10s, it will be raised to the heating furnace after 14s. a thermal shock process
3、 经过多次热震循环后， 取出样品， 用三点弯曲强度法测试其残余弯曲强 度。 3. After multiple thermal shock cycles, the sample was taken out and the residual bending strength was tested by the three-point bending strength method.
本发明的工作原理和过程为：  The working principle and process of the present invention are:
升降驱动装置 2驱动升降杆 1上下移动， 并通过限位开关 1 1， 控制驱动升降 杆 1下方的盛有待测陶瓷材料的样品篮 5到达各指定位置。  The lifting drive 2 drives the lifting rod 1 to move up and down, and through the limit switch 1 1, controls the sample basket 5 containing the ceramic material to be tested under the driving lifting rod 1 to reach each designated position.
首先样品篮 5进入加热器 6加热至预定温度， 再下降移出加热器 6， 将样品篮 5 置于冷却液箱 9内或置于冷却液箱 9与加热器 6之间的鼓风机 1 0吹风口处，对样品 篮 5内的待测陶瓷材料进行风冷、 液冷或风冷与液冷组合进行， 冷却液箱 9内盛 有水、 油等冷却介质。 待测陶瓷材料冷却后再通过升降杆 1提升进入加热器 6加 热， 循环往复多次， 直到测试结束。  First, the sample basket 5 enters the heater 6 to be heated to a predetermined temperature, and then moves out of the heater 6, and the sample basket 5 is placed in the coolant tank 9 or the blower 10 is placed between the coolant tank 9 and the heater 6. At the same time, the ceramic material to be tested in the sample basket 5 is air-cooled, liquid-cooled or air-cooled and liquid-cooled, and the coolant tank 9 contains a cooling medium such as water or oil. After the ceramic material to be tested is cooled, it is lifted into the heater 6 by the lifting rod 1 to be heated, and the cycle is repeated several times until the end of the test.
上面所述的实施例仅仅是对本发明的优选实施方式进行描述， 并非对本发 明的构思和范围进行限定， 在不脱离本发明设计构思前提下， 本领域中普通工 程技术人员对本发明的技术方案作出的各种变型和改进， 均应落入本发明的保 护范围， 本发明请求保护的技术内容已经全部记载在权利要求书中。  The embodiments described above are only intended to describe the preferred embodiments of the present invention, and are not intended to limit the scope and scope of the present invention. The various modifications and improvements of the present invention are intended to be included within the scope of the present invention.

Claims

权 利 要 求 书 Claim
1.一种陶瓷材料抗热震性自动测试仪， 其特征是包括： 1. An automatic thermal shock resistance tester for ceramic materials, characterized by comprising:
支架 （4); Bracket (4);
往复移动装置， 用于运送盛有陶瓷试验样品的样品篮 （5 ) 反复进出加热装置内 部； a reciprocating moving device for transporting a sample basket containing ceramic test samples (5) repeatedly entering and exiting the inside of the heating device;
加热装置， 用于加热陶瓷试验样品； a heating device for heating the ceramic test sample;
冷却装置， 用于冷却被加热的陶瓷试验样品； a cooling device for cooling the heated ceramic test sample;
自动运行控制装置， 用于控制以下参数： 往复移动装置带动样品篮 （5) 进出加 热装置的次数； 往复移动装置带动样品篮 （5) 往进出加热装置的速度； 样品篮 (5)在加热装置内部停留时间以及在冷却装置内的停留时间； 加热装置内部的 加热温度； 冷却装置中介质的温度； Automatic operation control device for controlling the following parameters: the number of times the reciprocating moving device drives the sample basket (5) to enter and exit the heating device; the speed at which the reciprocating moving device drives the sample basket (5) to and from the heating device; the sample basket (5) is in the heating device Internal residence time and residence time in the cooling device; heating temperature inside the heating device; temperature of the medium in the cooling device;
所述往复移动装置设置在支架 （4) 上， 往复移动装置一端设置有样品篮 （5)， 加热装置为中空结构， 供样品篮 （5 )在往复移动装置的带动下进出加热装置内 部， 冷却装置位于加热装置的出口端。 The reciprocating device is disposed on the bracket (4), and the sample basket (5) is disposed at one end of the reciprocating device, and the heating device is a hollow structure, and the sample basket (5) is driven into and out of the heating device by the reciprocating device, and is cooled. The device is located at the outlet end of the heating device.
2.根据权利要求 1所述的陶瓷材料抗热震性自动测试仪，其特征是所述往复移动 装置包括升降杆 （1 ) 和升降驱动装置 （2)， 加热装置为加热器 （6)、 冷却装置 为冷却液箱 （9)， 所述升降驱动装置 （2) 设置在支架 （4) 上方， 升降驱动装 置（2)上连接有升降杆（1 )， 样品篮（5)设置在升降杆（1 )下端， 加热器（6) 设置在升降驱动装置 （2) 下方， 加热器 （6) 内部上下贯通， 加热器 （6) 下方 设有冷却液箱 （9)。  2. The automatic thermal shock resistance tester for ceramic materials according to claim 1, wherein said reciprocating means comprises a lifting rod (1) and a lifting drive (2), and the heating device is a heater (6). The cooling device is a coolant tank (9), the lifting drive device (2) is arranged above the bracket (4), the lifting and lowering device (2) is connected with a lifting rod (1), and the sample basket (5) is arranged on the lifting rod (1) At the lower end, the heater (6) is placed below the lift drive unit (2), the heater (6) is internally connected up and down, and a coolant tank (9) is provided below the heater (6).
3.根据权利要求 2所述的陶瓷材料抗热震性自动测试仪，其特征在于所述鼓风机 ( 10 ) 还包括设置在冷却液箱 （9) 侧方的鼓风机 （1 0)。 3. The thermal shock resistance automatic tester for ceramic materials according to claim 2, wherein said blower (10) Also includes a blower (1 0) placed on the side of the coolant tank (9).
4.根据权利要求 2所述的陶瓷材料抗热震性自动测试仪，其特征在于所述冷却液 箱 （9) 内设有温控仪； 所述支架 （4) 上设有限位开关 （1 1 )。  The automatic thermal shock resistance tester for ceramic materials according to claim 2, wherein the coolant tank (9) is provided with a temperature controller; and the bracket (4) is provided with a limit switch (1) 1 ).
5.根据权利要求 2所述的陶瓷材料抗热震性自动测试仪， 其特征在于所述加热器 ( 6) 内包括外部的保温材料 （7) 和设置在保温材料 （7) 的内部加热体 （8)。 The automatic thermal shock resistance tester for ceramic materials according to claim 2, characterized in that the heater (6) comprises an external heat insulating material (7) and an internal heating body disposed in the heat insulating material (7). (8).
6.根据权利要求 2或 3所述的陶瓷材料抗热震性自动测试仪，其特征在于所述加 热器 （6) 内设有温度传感器 （12)。 The automatic thermal shock resistance tester for ceramic materials according to claim 2 or 3, characterized in that the heater (6) is provided with a temperature sensor (12).
7.根据权利要求 2所述的陶瓷材料抗热震性自动测试仪， 其特征在于所述陶瓷材 料抗热震性自动测试仪还包括控制箱（3 ) , 自动运行控制装置设置在控制箱（3) 内。  7. The ceramic material thermal shock resistance automatic tester according to claim 2, wherein the ceramic material thermal shock resistance automatic tester further comprises a control box (3), and the automatic operation control device is disposed in the control box ( 3) Inside.
8.根据权利要求 2所述的陶瓷材料抗热震性自动测试仪， 其特征在于所述支架 (4) 上设有行程开关， 行程开关包括正行程开关和负行程开关， 用于控制升降 杆 （1 ) 往复运动的行程。  The automatic thermal shock resistance tester for ceramic materials according to claim 2, characterized in that the bracket (4) is provided with a stroke switch, and the stroke switch comprises a positive stroke switch and a negative stroke switch for controlling the lifting rod (1) The stroke of reciprocating motion.
9.根据权利要求 2所述的陶瓷材料抗热震性自动测试仪， 其特征在于所述升降驱 动装置 （2) 为油缸、 气缸、 直线电机、 齿轮齿条装置。  The automatic thermal shock resistance tester for ceramic materials according to claim 2, characterized in that the lifting and lowering device (2) is a cylinder, a cylinder, a linear motor, and a rack and pinion device.
10.根据权利要求 1所述的陶瓷材料抗热震性自动测试仪的测试方法， 其特征在 于包括：  10. The method for testing a thermal shock resistance tester for ceramic materials according to claim 1, which is characterized by comprising:
将测试样品放置在加热装置中的高温 T2环境下加热时间 tl的歩骤； The test sample is placed in a high temperature T2 environment in a heating device for a heating time t1;
将测试样品通过往复移动装置从加热装置移动到冷却装置的歩骤； a step of moving a test sample from the heating device to the cooling device through a reciprocating moving device;
将测试样品在冷却装置中的低温 T1环境下冷却时间 t2的歩骤； Cooling time t2 of the test sample in a low temperature T1 environment in the cooling device;
将测试样品通过往复移动装置从冷却装置移动到加热装置的歩骤； a step of moving the test sample from the cooling device to the heating device through the reciprocating moving device;
由自动运行控制装置控制往复移动装置带动样品篮 （5 )进出加热装置的次数的 歩骤；往复移动装置带动样品篮（5 )往进出加热装置的速度的歩骤；样品篮（5 ) 在加热装置内部停留时间以及在冷却装置内的停留时间的歩骤； 加热装置内部 的加热温度； 冷却装置中介质的温度的歩骤。 Controlling, by the automatic operation control device, the number of times the reciprocating moving device drives the sample basket (5) into and out of the heating device a step of moving the sample basket (5) to and from the heating device; a residence time of the sample basket (5) inside the heating device and a residence time in the cooling device; heating inside the heating device Temperature; a step in the temperature of the medium in the cooling device.
PCT/CN2012/079059 2012-05-28 2012-07-23 Automatic tester for thermal shock resistance of ceramic material WO2013177860A1 (en)

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