Back
Knowledge

Low/high Temperature Test Chamber application test sealing strip temperature resistance

Abstract: 本文讨论了高低温试验箱在测试密封条耐高低温性方面的应用。密封条在使用中需要具备优良的密封性能和耐久性,但高温和低温环境可能会影响其性能和寿命。因此,对密封条进行耐高低温试验是关键。此试验旨在评估密封条在极端温度条件下的物理和化学特性,包括密封性、弹性、耐久性和抗老化性能。试验步骤包括准备样品、在高温和低温条件下暴露样品、恢复至室温后测试样品的物理性能。通过这些测试,可以确保密封条在实际应用中能够维持其性能稳定性,并适应各种环境条件。

Sealing strips need to have good sealing performance and durability during use, and high or low temperature environments may affect their performance and life. Therefore, it is very important to conduct high-low temperature resistance tests on sealing strips.

The high-low temperature resistance test can evaluate the physical and chemical properties of the sealing strip at high or low temperature, such as sealing, elasticity, durability, anti-aging performance, etc. These properties are closely related to the service life, safety and reliability of the sealing strip.

In the high-low temperature resistance test, the high-low temperature environment under actual use conditions can be simulated, such as placing it at a high temperature for a period of time, and then testing whether the sealing performance of the sealing strip is affected. Through these tests, the service temperature range and durability of the sealing strip can be determined, so as to ensure its good performance and stability in practical applications. At the same time, it is also possible to evaluate the chemical stability of the sealing strip at different temperatures, so as to avoid the degradation of sealing performance or material failure due to chemical changes.

The temperature resistance of the test sealing strip used in the high-low Temperature Test Chamber is shown in Figure 1

experiment procedure

The high-low Temperature Test Chamber can be used to test the durability of the sealing strip in high-low temperature environments. Here are some possible experimental steps:

  1. Prepare a sample of the weatherstrip, sized to the required test standard.

  2. Install the sample in the design application of the weatherstrip, such as a door frame or window frame, etc.

  3. Expose the sealing strip and installation location to high temperature conditions, usually 70°C to 100°C, for a period of time (eg 48 hours) to simulate a hot environment.

  4. Expose the sealing strip and installation location to low temperature conditions, usually -40°C to -20°C, for a period of time (eg, 48 hours) to simulate a cold environment.

  5. After high-low temperature exposure, use the constant temperature environment of the high-low temperature test box to return the sample to room temperature.

  6. Test the physical properties of the samples, such as tensile strength, hardness, wear resistance and sealing performance, etc.

Beichao reminds you: the specific test steps should be adjusted and formulated according to the required test standards and actual conditions.

Relevant knowledge
Guess you like it