High temperature test
Project Introduction
High-temperature testing is a reliability test conducted to simulate the high-temperature resistance of products during storage, assembly, and use. High-temperature testing is also the most commonly used accelerated life test. The purpose of high-temperature testing is to determine the adaptability and durability of storage and use of military and civilian equipment and parts when stored and operated under normal temperature conditions. Confirm the material's performance at high temperatures.
Application scope
The main scope of high and low temperature testing includes electrical and electronic products, their original components, and other materials. The stringency of the test depends on the high and low temperature temperatures and the duration of the test. High and low temperatures may overheat the product, affecting its safety and reliability, or even damage it, such as:

· Due to the different expansion coefficients of various materials, resulting in bonding and migration between materials

· Change material properties

· Decrease the electrical performance of components

· The elasticity or mechanical strength of the elastic element is reduced, shortening the service life of the product

· Accelerate the degradation and aging process of polymer materials and insulation materials, shortening the service life of products.

· The elasticity of flexible materials such as rubber is reduced and cracks occur;

· Increased brittleness of metals and plastics, leading to rupture or cracks;

· Make materials brittle. For example, plastics and steel are prone to brittle cracking and damage at low temperatures. Rubber materials increase in hardness and decrease in elasticity, etc.

method standards
Test standard reference: GB/T 2423.1, GB/T 2423.2, IEC 60068-2-1, IEC 60068-2-2, EN 60068-2-1, EN 60068-2-2, etc.
Test parameters
High temperature test: test temperature, test time, heating rate;
Performance impact
High temperature test: thermal aging, cracking, discoloration, softening, melting, expansion, or functional failure of materials;