Low temperature test

The purpose of low-temperature testing is to verify whether the test piece can be stored, manipulated and controlled in a long-term low-temperature environment, and to determine the adaptability and durability of military and civilian equipment during storage and operation under low-temperature conditions. Physical and chemical properties of materials at low temperatures. The standard specifies requirements for pre-treatment, initial testing, sample installation, intermediate testing, post-treatment, heating rate, temperature cabinet load conditions, and the volume ratio of the tested object to the temperature cabinet. Mainly used for scientific research, preservation of medical supplies, low-temperature experiments and storage of special materials such as biological products, ocean products, electronic components, chemical materials, etc. Failure modes of specimens under low temperature conditions: The parts and materials used in the product may experience cracking, embrittlement, jamming of movable parts, and changes in characteristics at low temperatures.

The main impacts of low temperature environment on equipment are:

a. Make the material hard and brittle;

b. Lubricant viscosity increases, flow capacity decreases, and lubrication effect decreases;

c. Changes in the performance of electronic components;

d. Water condenses and freezes;

e. Seal failure;

f. Material shrinkage causes mechanical structural changes.

Hidden stone detection has a group of professional technicians who have achieved significant success in the industry and have rich testing experience in the industry. Adhering to the concept of focus, professionalism, efficiency, and thinking what customers think, the company actively increases projects and improves more advanced testing equipment to ensure the high-quality and efficient completion of every testing, analysis, and research and development task. At the same time, through professional expertise, we provide the most timely industry technical standard information and more advanced analysis and testing solutions to tens of thousands of high-quality customers worldwide.

Hidden stone testing has established valve laboratory, corrosion laboratory, metallographic laboratory, mechanics laboratory, non-destructive laboratory, and weathering aging laboratory. Engaged in atmospheric pressure storage tank testing, boiler energy efficiency testing, metal corrosion testing, stress-strain testing, non-destructive testing, mechanical equipment testing, metallographic analysis, graphene nanomaterial testing, water quality testing, oil product testing, etc. The service scope has been widely covered in various fields such as steel materials, non-ferrous metal materials, petrochemical equipment, general machinery equipment, metallurgical ores, construction materials, aerospace materials, high-speed rail ship materials, automotive parts, non-metallic materials, electronic and electrical products, and has obtained CMA and CNAS; Double recognition.