To explore the limitations of the low air pressure test methods for electronic and electrical products, and to propose ways to optimize and improve the test methods. To analyze the influence of low air pressure environment on the performance, reliability and life of electronic products, and to summarize the important role of low air pressure test in the reliability assessment of electronic products. From the four aspects of test equipment, test conditions, test point arrangement and data processing methods, suggestions are made to improve the low air pressure test methods. For the test equipment, it is proposed to adopt new vacuum pumps, high vacuum chamber materials, optimize the sealing structure, and introduce precise temperature control algorithms; for the test conditions, it is proposed to reasonably select the air pressure value and rate of change according to the product environment, match the temperature conditions, and take into account the test efficiency and failure incentives; for the test point layout, it is proposed to focus on the key devices and weak structures, and adopt suitable wiring materials and direction design; for the data processing method, it is proposed to improve the low air pressure test method. For the data processing method, it is suggested to introduce new methods such as machine learning and signal processing to explore the failure law and performance trend, and focus on the visualization of the analysis results. Strengthening the research on low air pressure test methods is of great significance to enhance the reliability of electronic products and promote their application in rail transportation, aerospace and other fields, which requires the joint efforts of industry, academia and research institutes.

This study aims to explore the specific application of non-destructive testing technology in quality control of pouring molds, in order to improve the accuracy and reliability of mold manufacturing. Mainly using ultrasonic testing technology to detect mold materials, in order to accurately identify defect locations and evaluate material stress distribution. At the same time, infrared thermal imaging technology is used to monitor the temperature distribution and processing parameters of the mold surface, in order to evaluate the surface quality. The research results indicate that non-destructive testing technology has significant advantages in quality control of pouring molds and can effectively improve the level of quality control. I hope that through the research in this article, we can effectively improve the technological level of the mold manufacturing industry and promote its development.

Fluorescence probe technology refers to a technical means of labeling the substance to be measured with fluorescence probe, enabling qualitative and quantitative analysis of the measured substance. Fluoride ion is one of the important trace elements in human body, proper intake of fluoride ion can help prevent tooth decay and osteoporosis, while excessive intake of fluoride ion can cause a variety of diseases. Therefore, it is of great significance to develop fluorescence probes that can detect fluoride ions in organisms. The latest scientific research results were converted into comprehensive designing experiment "the synthesis of fluorescence probe and detection of fluorine ions in aqueous phase". Through the implementation of the experiment, the students' ability of organic synthesis, the operation of optical analytical instruments and the analysis of experimental data will be greatly improved.

Objective To improve temperature check technology for resistance to thermal shock of ceramic cookware products and to enhance the work efficiency. Methods By using different temperature testing tools of infrared thermometer and compact spot finder infrared camera to test resistance to thermal shock of samples, and the experimental steps and results were compared and analyzed. Results For infrared thermometer, manual handheld operation is required to detect the bottom temperature of a sample, which has low safety and poor detection repeatability; For the compact spot finder infrared camera, it can be connected to a computer for automation to detect temperature of sample, which can achieve the temperature visualization, easy to operate, more safety and reliable. Conclusion The experimental data shows that the compact spot finder infrared camera provides safe and reliable technical support for the detection of resistance to thermal shock of ceramic cookware. This experiment provides technical guidance for improving the quality of ceramic cookware products.

With the rapid development of information technology, laboratory information management has become a key means to improve research efficiency and quality. This article delves into the application and significant benefits of laboratory information management in data processing, resource utilization, team collaboration, and research innovation. By implementing electronic data management, online resource scheduling, cross regional collaboration platforms, and advanced data analysis, information management not only improves research efficiency, but also promotes the improvement of research quality and innovation capabilities. The further development of information technology will make laboratory management more efficient, secure, and collaborative, providing strong support for scientific research.