Test Background
The main effects of high temperature environments on marine instruments are: thermal aging (oxidation, cracking, chemical reactions), viscosity reduction, softening, melting, sublimation, evaporation, expansion, etc. These effects can lead to insulation damage, mechanical failure, increased mechanical stress, loss of lubrication properties due to expansion, or increased wear of moving parts in marine instruments.
Zhongke Testing Reliability Experiment Center has environmental testing capabilities for various marine instruments and provides professional high-temperature testing and other environmental testing services for marine instrument products.
Scope of tests
Marine instruments are classified according to different environmental conditions of use and are divided into four categories:
1. Instruments for shore stations: such as marine instruments installed and used on coastal stations, offshore fixed platforms and islands.
2. Instruments for ships and buoys: such as marine instruments used on various types of ships, buoys and other mobile offshore platforms.
3. Underwater instruments: such as marine instruments or sensors used in seawater.
4. Satellite and aeronautical instruments: The environmental testing of such instruments should adopt other environmental testing standards based on the characteristics of the environmental conditions in which they are used.
test temperature
Unless otherwise specified, the high temperature test temperature of marine instruments should be selected from the following values:
a) (40±2)℃;
b) (50±2)℃;
c) (60±2)℃;
d) The maximum temperature of the environment in which marine instruments are used.
The test sample should last for at least 2 hours after reaching temperature stability, or be carried out in accordance with relevant specifications (such as product standards, test programs or test contracts, etc.).
Test standard:
GB/T 32065.1 -2015 Marine Instrument Environmental Test Methods Part 1: General Provisions
GB/T 32065.4-2015 Marine instrument environmental test methods Part 4: High temperature test
GB/T 2423.2-2008 Environmental testing of electrical and electronic products Part 2: Test methods Test B: High temperature
EN 60749-6-2002 Semiconductor devices. Mechanical and climatic test methods Part 6: High temperature storage
GB/T 4937.23 Mechanical and climatic test methods for semiconductor devices Part 23: High temperature operating life
