What are the main test items for automotive materials?

What are the main test items for automotive materials?

A thorough understanding of the physical, chemical and environmental properties of your product is necessary if you are ready to demonstrate the safety, high quality and durability of your product to customers while reducing the risk of returns or product recalls.

As the basis of automobile production, the quality of materials and automobile parts is decisive for success of automobile production. . preconditions. With the increasingly advanced functions of various new models and the continuous pursuit of driving experience and safety, automobile manufacturers are required to monitor the quality and safety of materials at the source.

1. Reliable performance test (some are not limited to)

Photoaging test

■ Aging testxenon arc lamp ■ Carbon arc lamp aging test

■ Simulated UV aging test

Environmental corrosivity test

weight sa neutrallt spray test ■ Acetate salt spray test

■ Acceleration copper ions Salt spray test ■ Ozone resistance test

■ Gas corrosion (hydrogen sulfide, sulfur dioxide, nitrogen dioxide, chlorine) ■ Cyclic salt spray test

Environmental reliability test

weight Temperature test ■ Temperature and humidity test

■ Rapid temperature change Tests ■ Thermal shock test

■ Various lifespan tests ■ Three temperature tests complete vibration test

■ Dust test ■ Water resistance test

■ Shock resistance test stone

2. Testing for Volatile Organic Compounds in Aire the car and interior parts materials

Test items: volatile organic compounds (benzene, toluene, xylene, styrene, formaldehyde, acetaldehyde, etc.), volatile organic compounds Totals

■ (TVOC), Fog Test, Odor Test, Sulfur Dioxide, Nitrogen Dioxide, Carbon Monoxide, Ozone, Ammonia, Can

■ Inhalation of partimatter, etc.

Testing Standards: Can meet European, US and Japanese VOC standards of Volkswagen, General Motors, Ford, Toyota, Nissan, Honda, etc.

■ Field of application: plastic products, rubber, wood products, leather, foam, fabrics, adhesives, fillings, carpets, coatings, etc.

3. Testing of metallic and polymeric materials (physical and mechanical properties)

Testing of metallic materials and components

Testing of mechanical properties : traction test, bending test, testhardness, impact test

weight Component test: qualitative and quantitative component analysis, trace element analysis

weight Structural analysis: metallographic analysis, non-destructive testing, coating analysis

weight Dimensional measurement: three-coordinate measurement, projector measurement, precision caliper measurement< /p>< p >

Polymer Materials and Parts Testing

Physical Property Testing: Ensile Test (including normal and high temperature and low temperature), bending test (including normal temperature and high and low temperature), impact test (including normal temperature and high and low temperature), hardness, haze, tear strength

weight Thermal Performance Test: Glass Transition Temperature, Melt Index, Dimension Board Temperature, Softening Point, Low Temperature Embrittlement Temperaturere, melting point, thermal expansion coefficient, thermal conductivity

Electrical performance testing of rubber and plastic: surface resistance, dielectric constant, dielectric loss, dielectric strength, volume resistivity, withstand voltage, breakdown voltage

Coating performance test of interior and exterior parts: gloss, color difference, coating thickness, adhesion, pencil hardness , abrasion resistance, artificial sweat resistance test, scratch resistance test, oil resistance test, detergent resistance test, coating impact resistance test

Flammability test: vertical burning test, horizontal burning test, 45° angle burning test, FFVSS 302, ISO 3975, SAEJ369, GM 9070P

Qualitative analysis of the composition of materials: Fourier transform infrared spectroscopy, etc.

4. Analysis services for lead, cadmium, mercury and hexavalent chromium (ELV directive) restricted hazardous substances in automobiles

■ EU ELV: Lead Pb, Cadmium Cd, Cr6+hexavalent chromium, Hg mercury

■ VLE China: Pb lead, Cd cadmium, Cr6+hexavalent chromium, Hg mercury, PBB Polybrominated biphenyls, PBDEPolybrominated diphenyl ethers

5. Crash test of seat belts

Test standards

GB14166-2003 Safety belts and restraint systems for adult occupants of motor vehicles

Test items

■ Loop durability ■ Vibrations

■ Salt spray ■ Insertion and extraction force

■ Hot shock ■ High temperature

■ Low temperature ■ Sand and dust

■ Vibration noise ■ Plugging and pulling noise

■ Collision

6.Vehicle Fuel and Oil Tests

weight Products Tested: Lubricants, Gasoline, Diesel, Liquefied Petroleum Gas, Other Automotive Oils

■ Test Items: Octane Number, Cetane Number, Hexadecane Number Alkane Number, Component Analysis, Metal Ions, Particle Distribution, Density, Viscosity, Ash, Flash Point, moisture, alkane oxides, sulfur content, pour point, distillation range, oxidation stability, etc.

7. Elements of REACH Regulatory Services

■ REACH Testing for Substances of Very High Concern (SVHC)

In today\'s society, cars have become an indispensable tool in the lives of modern people. While automobiles bring benefits to human society, they also cause a series of serious problems such as air pollution, noise and road safety. The car itself is a complex system.As mileage and usage time increase, its technical condition gradually deteriorates, with reduced power, poor economy, increased emissions and reduced reliability. Therefore, on the one hand, it is necessary to constantly develop cars with excellent performance, and on the other hand, cars must be maintained and repaired to restore their technical condition. Automotive performance testing is a technology that tests, detects and diagnoses the technical condition of the car during its use, maintenance and repair.

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