Automobile reliability performance testing
basic introduction
The vehicle reliability driving test is to allow the vehicle to drive on various road surfaces to comprehensively examine its performance. The various roads used for the test and the mileage traveled on each road surface vary depending on the vehicle model, and the requirements are also different. Reliability tests that cars must undergo include anti-collision tests, wear resistance tests, etc.
Reliability test item classification
Mechanical behavior
three comprehensive
mechanical shock
collision
HALT random vibration drop
sinusoidal vibration
Climate and environmental reliability
high and low temperature
Thermal shock
IP waterproof and dustproof
Constant temperature and humidity
Dependent lamp UV aging
Salt show S02
rapid temperature change
Physical properties, life, fatigue reliability related
density
stretch
Longevity and low labor
hardness
bending
Melt Flow/Vika
Melting point and ash content
Elongation at break
Operability
Temperature star test
It is mainly used to assess the use and storage adaptability of finished products or components under conditions such as constant humidity and heat, temperature cycle changes, etc., for electrical and electronic products, components, materials, etc. It is the most widely used type of artificial accelerated simulation test in products.
Argon lamp test
It uses lights to simulate the destructive effects of full-spectrum sunlight, and sprays to simulate the effects of rain, dew, exposure, and darkness. Simulate the changes caused by exposure of materials to sunlight under different environments. The material sample is exposed to arc lamp light, heat radiation, and humidity for aging tests to evaluate the light resistance and weather resistance of the material.
Vibration test
It refers to a test conducted on a vibrated object or model to evaluate the vibration resistance of a product in the expected use environment. According to the type of vibration load applied, vibration tests are divided into two types: sinusoidal vibration tests and random vibration tests.
Sinusoidal vibration test
Including fixed frequency vibration test and sweeping sine vibration test. Controlling the temperature and humidity changes at the same time based on the vibration test is called the three comprehensive vibration tests.
Test project parameters
HALT and compression test project parameters:
HALT
Compression testing machine
Table size
1220×1220mm
/
Frequency range 10-5000Hz
/
maximum acceleration
60g
/
temperature range
-100~200℃
/
temperature slew rate
60℃/min
/
Brand and model
QualMarkTyphoon 4.0+
Dongguan Haida D-502S-1500
Maximum sample size
/ 1500*1500*1200
greatest pressure
/ 5 tons
Test speed
/ /10±3mm/min
UV and xenon lamp aging test project parameters:
UV aging test chamber
Xenon lamp aging test chamber
light source
UV fluorescent lamp
6500W water-cooled xenon arc lamp
UVA-340
0.68
1.38
0-1120W/m2 (300-800mm)
UVA-351
0.87
1.55
UVA-313
0.67
1.23
PFS-40
0.48
0.86
temperature conditions
/ 20-90%RH
temperature conditions
Blackboard: 50~85℃ light
40-60℃ dark
Cabinet: RT-90℃
Blackboard: RT~100℃
Brand and model
Q-PANELQUV/SPRAY
Asia Pacific Ci4000
Ordinary salt spray and cyclic salt spray test project parameters:
Ordinary salt spray test chamber
Circulating salt test chamber
Inner dimension
750×570×740mm
1600×1000×500mm
2160×980×1320mm
temperature range
RT-55℃ (fixed point temperature)
RT-55C 20~95%RH
Heating rate
none
0-1.3℃/min (continuously adjustable)
Salt spray type
Neutral, acidic, copper ion acceleration
Generally neutral
salt spray deposition
1~2ml/80cn3.h
1~2ml/80cm3.h
Brand and model
Shanghai Weisi SC/8WT450
Guangzhou Dongzhixu DR160
British Ascott CC2000IP
