CN-118483100-B - Thermal shock resistance testing device

CN118483100BCN 118483100 BCN118483100 BCN 118483100BCN-118483100-B

Abstract

The invention relates to a thermal shock resistance testing device which comprises a fixed table, a first furnace body and a second furnace body, wherein the first furnace body and the second furnace body are arranged on the fixed table, the first furnace body and the second furnace body are respectively provided with furnace chambers, and meanwhile, the device also comprises a quartz tube, the first furnace body and the second furnace body are arranged in a separated mode, the quartz tube is erected in the furnace chambers of the first furnace body and the second furnace body, at least one end of the quartz tube can be opened to form a feeding port, and a channel for transferring materials between the two furnace chambers is formed inside the quartz tube. According to the invention, on the premise of separating the furnace chambers, the material transfer channels among the furnace chambers with different temperatures are effectively established, the influence of a test object on the test environment when being transferred in a high-low temperature environment is reduced, and the test effectiveness is ensured.

Inventors

LI HUAJIAN
ZHANG TIANFENG
FENG XIAOXIA
ZHANG XUEWEN
ZHANG JUNHUA

Assignees

兰溪泛翌精细陶瓷有限公司

Dates

Publication Date: 20260512
Application Date: 20240524

Claims (10)

1. The utility model provides a thermal shock resistance test equipment, includes fixed station, first furnace body and second furnace body are installed on the fixed station, first furnace body and second furnace body have furnace chamber, its characterized in that respectively: the novel furnace comprises a first furnace body, a second furnace body, a quartz tube, a separating device and a separating device, wherein the first furnace body and the second furnace body are arranged in the furnace chambers of the first furnace body and the second furnace body, at least one end of the quartz tube can be opened to form a feeding port, a channel for transferring materials between the two furnace chambers is formed in the quartz tube, and an isolating member is not arranged in the quartz tube.
2. The thermal shock resistance test apparatus according to claim 1, further comprising a support plate horizontally mounted on the fixed table, wherein the first furnace body, the second furnace body and the quartz tube are fixedly mounted on the support plate, and a lifting assembly is disposed between the support plate and the fixed table, and the lifting assembly keeps the support plate horizontal or inclined.
3. The thermal shock resistance test equipment according to claim 1, wherein the first furnace body and the second furnace body are fixedly arranged on the fixed table along the horizontal direction, and a lifting assembly is arranged between the quartz tube and the fixed table, and the lifting assembly enables the quartz tube to be kept horizontal or inclined.
4. The thermal shock resistance test device according to claim 1, further comprising an air flow generating device, wherein both ends of the quartz tube are in a ventilation state, the air flow generating device comprises an air tap and an air source, one end of the air tap is aligned with a channel in the quartz tube, and the other end of the air tap is connected with the air source.
5. The thermal shock resistance test equipment according to any one of claims 1-4, wherein the quartz tube is provided with a material containing groove, the material containing groove is positioned in the furnace chamber, the material containing groove is formed by downwards sinking the lower wall surface of the quartz tube, and the material containing groove can be used for materials to fall into.
6. The device for testing thermal shock resistance according to claim 5, wherein the number of the material containing grooves is two, the two material containing grooves are respectively positioned in furnace chambers of the first furnace body and the second furnace body, and the side walls of the material containing grooves are in inclined smooth transition with the lower wall surface of the quartz tube.
7. The device for testing thermal shock resistance according to any one of claims 1 to 4, further comprising a positioning member, wherein the positioning member comprises a blocking portion, a connecting portion and a fixing portion, the blocking portion is disposed in a channel inside the quartz tube and can block unidirectional movement of materials, the fixing portion can move relative to the quartz tube and can be fixedly connected with the quartz tube, two ends of the connecting portion are respectively connected with the blocking portion and the fixing portion, and the blocking portion is located in the furnace chamber when the fixing portion is fixedly connected with the quartz tube.
8. The apparatus of claim 7, wherein the upper wall of the quartz tube is provided with a guide groove, the fixing part comprises a sliding part and a fixing part, one end of the sliding part is slidably installed in the guide groove, and the other end of the sliding part extends out of the upper wall of the quartz tube and is connected with the fixing part.
9. The apparatus of claim 8, wherein the connecting portion is a rod-shaped member, the length direction of the rod-shaped member extends along the length direction of the quartz tube, and the end of the rod-shaped member connected to the blocking portion extends outside the cavity when the end of the rod-shaped member connected to the fixing member is located in the cavity.
10. The apparatus of claim 1, further comprising a translation assembly mounted to the stationary platen, the translation assembly translating the relative positions of the first furnace body and the second furnace body to the quartz tube.

Description

Thermal shock resistance testing device Technical Field The invention relates to the field of testing equipment, in particular to thermal shock resistance testing equipment. Background Thermal shock resistance refers to the ability of a material to resist thermal stresses caused by rapid changes in temperature, thereby avoiding crack initiation and propagation, and maintaining structural integrity and function. This property is particularly important for applications of the material in extreme temperature environments. In practical applications, thermal shock resistance is a key indicator for evaluating whether a material is suitable for use in high temperature or severe temperature change environments. For example, in the aerospace field, materials may experience extreme temperature changes, and thus need to have good thermal shock resistance to ensure their performance and safety under these conditions. The thermal shock resistance is generally affected by various factors including the thermophysical properties (e.g., coefficient of thermal expansion, thermal conductivity), mechanical properties (e.g., modulus of elasticity, fracture toughness), microstructure (e.g., grain size, phase interface), and external conditions (e.g., rate of temperature change, temperature difference). By optimizing these factors, the thermal shock resistance of the material can be improved, thereby enhancing the reliability and durability of the material in practical application. Therefore, in the development process of materials, the thermal shock resistance test is indispensable, and corresponding test equipment is also crucial. In practice, a great difficulty of the thermal shock resistance testing device is how to quickly transfer the test object in a high-low temperature environment, and simultaneously reduce the influence of the operation process on the test environment as much as possible so as to simulate a real use scene. The Chinese patent application No. 202210165304.8, entitled "Integrated thermal shock resistance test device", discloses an Integrated thermal shock resistance test device, which adopts an integrated box body, a thermal insulation wall is vertically arranged in the box body, the box body is divided into a heating cavity and a cooling cavity by the thermal insulation wall, a thermal insulation door is arranged on the thermal insulation wall, and a push rod device is arranged on the box body, so as to solve the problems. However, even if the transfer speed of such a testing device is fast enough, there still exist situations that temperature influence or substance exchange occurs in two cavities in the process of opening the isolation door, and in fact, a great influence is still caused on the testing environment. Disclosure of Invention Aiming at the defects existing in the prior art, the technical problem to be solved by the invention is to provide the thermal shock resistance test equipment, and the material transfer channels among the furnace chambers with different temperatures are established on the premise of separating the furnace chambers, so that the influence on the test environment when a test object is transferred in a high-low temperature environment can be effectively reduced, and the test effectiveness is ensured. In order to solve the technical problems, the invention provides the following technical scheme: The utility model provides a thermal shock resistance test equipment, including fixed station, first furnace body and second furnace body are installed on the fixed station, and first furnace body and second furnace body have the furnace chamber respectively, still include the quartz capsule simultaneously, and first furnace body and second furnace body separate setting, the quartz capsule erects in the furnace chamber of first furnace body and second furnace body, and at least one end of quartz capsule can be opened and form the feed inlet, and the inside passageway that supplies the material to take place to shift between two furnace chambers that forms of quartz capsule. The key to the thermal shock testing is the high temperature and the abrupt change in temperature. The quartz tube has good high temperature stability, maintains its properties under various extreme temperature conditions, and at the same time has a very small thermal expansion coefficient of about 5.5X10-7/DEG C, which makes it capable of withstanding severe temperature changes without cracking, and in addition, has a poor thermal conductivity. According to the invention, by utilizing the three characteristics of quartz, the quartz is used as a carrier for containing materials in a furnace body and is communicated with furnace chambers with different temperatures, and the test materials can be transferred in a high-low temperature environment only by moving in a quartz tube, so that the external interference is reduced as much as possible, and the test effectiveness is reliably ensured. For how to realize the tr