Flame-retardant plastic materials are
often used in auto parts, especially in new energy vehicles. Flame-retardant
plastic materials are more widely used. Especially in charging piles and battery
parts, plastic materials are required to be flame retardant. Look at the
applications of flame-retardant plastic materials in automotive parts.
Flame-retardant plastic materials are
mainly used in the parts of new energy vehicles. Battery modules, charging
piles, charging guns, etc., must be made of flame-retardant materials. As the
charging connector of electric vehicles, the charging gun is the
"axial" connecting the charging facilities such as charging piles and
the electric vehicle. The quality of it directly affects the charging
performance and safety. The material requirements of the charging gun are
relatively high. Common materials include: PBT + GF, PA + GF, weather-resistant
PC, etc.
shell
The shell of the charging pile is
generally made of flame-retardant PC material. Material characteristics:
halogen-free and flame-retardant, high surface gloss, excellent electrical
insulation properties, and excellent mechanical properties.
Battery case
Plastic shells are currently the main
development direction of power battery shell materials due to their good
overall performance. For example, the series of lithium batteries produced by
domestic companies are all plastic shells. It is reported that in the power
battery standard, corresponding clear flame-retardant requirements are put
forward for the battery shell box, and now more and more companies are
beginning to use flame-retardant plastics for power batteries.
The basic requirements for connector
materials: heat-resistant and flame-retardant! The connector contacts are made
of metal, which requires a high number of plugs and unplugs. The material is
required to have good flame-retardancy, heat resistance, and avoid fire. At
present, the commonly used materials for connectors are PBT and PPS, PA, PPE,
PET, etc.
Both traditional wires and cables,
car charging cables have high requirements for materials and equipment because
of their special application environment. As the charging process time of
electric vehicles changes rapidly, the current intensity is high, and the
frequency of use is high, the material is required to have certain high-temperature resistance, aging resistance, and halogen-free flame retardancy, and
low smoke during combustion while ensuring good insulation. density.
Compared with
traditional alloy materials, plastic parts have unparalleled advantages.
Plastic products will help reduce the weight of cars. Data shows that for every
10% reduction in vehicle weight, fuel economy can increase by 5%, so new energy
vehicles using plastic products can run farther.
Plastic products
can also reduce the production cost of car companies. A simple injection-molded
plastic part can perform the function of welding many metal parts together. The
plastic can be molded into a more complex shape than a steel assembly, which
can reduce the integration process. The number of parts used.
In addition, the
elastic deformation characteristics of plastic products absorb a large amount
of collision energy, have a greater buffering effect on strong impacts, and
play a good role in protecting vehicles and passengers; plastics have strong
corrosion resistance, local damage will not corrode, and steel Once the paint
is damaged or the anti-corrosion is not well done, it will be easy to rust and
corrode, which will affect the appearance of the car body and cause safety
hazards;
According to the
composition of the plastic, plastics with the required properties can be
prepared by adding different fillers, plasticizers, and hardeners, and the
mechanical strength and processing and forming properties of the plastic can be
modified to meet the requirements of different parts of the car. It can be said
those plastics have contributed to the rapid development of new energy vehicles,
and the rapid development of new energy vehicles has opened up a broad market
for plastics.
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