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Reliability Test

Reliability engineering runs through the normal life span of the electronic equipments—from the phase of product design, manufacture, install, use, and to maintain. Reliability based design and manufacture are vital to ensure the product to be reliable over its life cycle.
During the electronic equipments’ use, they may encounter the following environmental conditions--high temperature, low temperature, high humidity, low pressure, hazardous gas, fungi, salt spray, shock, vibration, radiation, electromagnetic interference, etc. When subject to these stresses, a product with reliability-based design (anti-severe environment, thermal and EMC designs), fabrication technology, management, and analysis techniques, is able to operate appropriately. Failure analysis model building is one of the most important considerations to assure the product’s reliability under prescriptive environment conditions.
Environmental testing gives the manufacturer quality assurance that their product is ready to be put on the market. It also allows them to see how their product will withstand the storage and shipping conditions that it will encounter. Environmental testing allows manufacturers to ensure their product will be reliable under almost any condition it may be exposed to over its lifetime.

Reliability test item form
Test Item Equipment Parameter Test Production Object Test Parameter
Climatologically test
1 High-temperature test Room temperature~100℃ Complete appliance、metal material parts、 plastic material parts、electric parts test temperature、test time、samples dimension、samples number、operating or not、test standard
100℃~ 300℃
2 Low-temperature test 0℃~-40℃ Complete appliance、metal material parts、 plastic material parts、electric parts test temperature、test time、samples dimension、samples number、operating or not、test standard
-40℃~70℃
3 High-low temperature cycle test temperature:-40℃~150℃
humidity:20%~98%
Complete appliance、metal material parts、 plastic material parts、electric parts test time、cycles 、test temperature &time samples dimension、samples number、operating or not、test standard
Constant temperature and humidity test temperature:-40℃~150℃
humidity:20%~98%
Complete appliance、metal material parts、 plastic material parts、electric parts test temperature and humidity、test time、samples dimension、samples number、operating or not 、test standard
Thermal shock test temperature: -65℃~150℃ Complete appliance、metal material parts、 plastic material parts、electric parts Test time、Cycle period、High temperature & time、Low temperature & time、Samples dimension、Samples number、Operating or not、test standard
Speedy temperature test Temperature:-70℃~150℃
Charge rate:20℃/min
Complete appliance、metal material parts、 plastic material parts、electric parts test temperature、test time、samples dimension、samples number、operating or not、test standard
Temperature/humidity/vibration synthetically test 1m3 Temperature & humidity chamber,1t vibration estrade Complete appliance、metal material parts、 plastic material parts、electric parts test temperature and humidity、test time、Vibration frequency,vibration period、samples dimension、Samples weight、samples number、operating or not、test standard
Salt spray test NSS,ASS,CASS Metal parts
(include  paint and zincification material )
test temperature、test time、samples dimension、samples number、test standard
Alternation charge salt spray
9 IP degree
IP Code
IP XY
X=dustproof
Y= waterproof
X: 1-4            Complete appliance IP degree、samples number、test standard
X: 5-6
Y
10 UV Lamp Test UVA340/UVB313 Plastic material,
Rubber material
test time、sample material、samples number、operating or not、test standard
11 Xenon Lamp Test Plastic material,
Rubber material
test time、sample material、samples number、operating or not、test standard
12 UL94 Burning degree test V-0,V-1,V-2,HB Plastic material,
Rubber material and Other
Test class、Samples number、Color difference、Sample material
13 Gas Corrupt Test SO2/ H2S/ NO2/Cl2/NH3 metal material, Plastic material, test time、Gas category、sample material、samples number、test standard
14 Low air pressure test Air press and temperature adjuster Complete appliance samples dimension、samples number、operating or not、test standard
15 HALT/HASS Typhoon 4.0 semi-finished products(electricity product) test time、acceleration、samples number、test standard
Mechanical test
16 Vibration Test horizontal,vertical vibration
sine、random、sine & random
2-2000Hz
Complete appliance, metal parts,
electricity parts
Vibration frequency,vibration period、vibration axe (X、Y、Z axes)、acceleration、samples dimension、samples number、samples weight、operating or not、test standard
17 Mechanical Shock Test 30000m/s2(3000g) Complete appliance, metal parts,
electricity parts
Vibration frequency,vibration period、vibration axe (X、Y、Z axes)、acceleration、samples dimension、samples number、samples weight、operating or not、test standard
18 Bump Test 250kg, 50m/s2~300 m/s2 Complete appliance, metal parts,
electricity parts
librate time of every side 、face of swing(face of X、Y、Zaxes)、samples number、
19 Simulate Transportation Class III road:35km/h load 1500kg Packing product Travel distance、samples dimension、samples number、samples weight、test standard
20 Packing Drop Test Max.loading:0~100Kg
Sample max. dimension: 1000*800*1000(mm);
Drop high 300-1500mm;
Max. load 0-100kg
Packing product samples dimension、samples number、drop high、drop times、drop place 、samples weight、test standard
21 Heap Test Max. load:5t Packing product samples dimension、samples number、samples weight、test standard
22 Resist Press Test Max. load:5t Packing product samples dimension、samples number、samples weight、test standard
23 Pull/Pressure/Flex Test Metal material、
Plastic material、PCB
pull(press、bend)point、Pull(press、bend)degree、report(chinese、english)
24 Rub Test alcohol,pencil,rubber Silk-screen product(parts) Friction time、friction material
PCB test
25 Cross section test  Lead-free solder PCB PCB position of slice、direction of incision、face of slice、
microscope magnification
26 Tin whisker check Lead-free solder PCB PCB Magnification of microscope
27 Solder pull test Lead-free solder PCB PCB Position of welding spot
28 Solder ability test PCB  
29 Air Pressure Cooker Test Pressure cooker,pressure pot pressure range、intensity of pressure
30 Coating thickness Test clad layer thickness > 1um metal clad and plating on plastics product ply、position of measure
 
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