What are the selection principles for high temperature bending strength testing machines?

In the fields of building materials, metallurgy, chemical industry, etc., high temperature flexural strength is one of the important indicators for evaluating the performance of inorganic non-metallic materials (such as refractory materials, ceramics, concrete, etc.). With the continuous advancement of industrial technology, the requirements for high temperature performance of materials are getting higher and higher, and high temperature flexural strength testing machine is one of the important testing equipment. In this article, the editor of Hutt Instrument mainly explains the selection principles of high temperature flexural strength testing machine.

Analysis of the selection principles of high temperature flexural strength testing machine

1. Meet the required test temperature requirements

The operating environment temperature of different materials is different, so the higher test temperature requirements of high temperature flexural strength testing machine are also different. For example, when testing refractory materials, the test temperature may need to reach above 1600℃, while when testing ordinary concrete, about 800℃ is sufficient. Therefore, when selecting a high temperature flexural strength testing machine, the required higher test temperature must be determined according to actual needs to meet the needs of testing different materials.

2. Have sufficient heating rate and uniformity

The heating rate and uniformity are important factors affecting the accuracy of the test results. An ideal high-temperature flexural strength testing machine should have the ability to heat up quickly and stably, and be able to heat the specimen to the set temperature in a short time, while ensuring that the specimen is heated evenly to avoid test errors caused by temperature gradients.

3. Have a reasonable heating method and structural design

Currently, common heating methods for high-temperature bending strength testers include resistance heating, induction heating, infrared radiation heating, etc. Each heating method has its applicable scope and characteristics. When choosing, the appropriate heating method should be selected in combination with the properties of the specific test object to obtain better heating effects. In addition, the structural design of the test machine is also very important. Factors such as thermal expansion and thermal stress need to be considered to ensure that the structure is firm and the heat transfer is uniform.

4. Take into account test accuracy and repeatability

The accuracy and repeatability of the high-temperature bending strength tester directly determine the reliability of the test data. Therefore, when selecting, priority should be given to those devices that can provide higher accuracy and repeatability data to ensure the accuracy and consistency of the test results. At the same time, attention should also be paid to the automation level of the equipment. The higher the degree of automation, the smaller the human operation error, and the higher the reliability of the test data.

5. Have complete auxiliary functions and safety protection measures

In addition to the basic testing functions, advanced high temperature bending strength testing machines should also have some auxiliary functions, such as data acquisition, analysis and processing, to improve work efficiency. At the same time, complete safety protection measures (such as protective doors, emergency brakes, alarm systems, etc.) are also indispensable, which can guarantee the personal safety of operators to a greater extent.

The above is the editor's introduction to the selection principles of high temperature bending strength testing machines. When purchasing equipment, it is necessary to make a comprehensive analysis and make a choice to meet actual needs. If you want to know more information or have instrument ordering needs, you can leave a message or contact us by phone.