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Automobile lightweight means to reduce all components of the automobile as much as possible on the premise of ensuring the strength, stiffness, mode and bump performance of the automobile body, so as to improve the power and safety of the automobile, reduce fuel consumption and reduce exhaust pollution. Among many lightweight materials, automotive engineering plastics are in a low-key position, "replacing steel with plastics" will be a development trend of automotive lightweight. With the rise and development of the domestic automotive industry, the demand for automotive engineering plastics in China is also growing rapidly.

Many auto parts, such as bumper, wheel cover, license plate, instrument panel, door panel, knob, even engine cover and air intake system, are made of engineering plastics. Engineering plastics are more and more widely used in automobile lightweight.

Innovative application of jusilon engineering plastics in automobile lightweight

Thin wall and high rigidity material: the high mobility of the thin-walled material of jusailong can meet the requirements of thin-wall injection molding, the high rigidity is satisfied with the strength loss caused by the wall thickness reduction, and the high toughness is satisfied with the bump requirements.

Low density materials: the density of polychloron low density materials ranges from 1.0-1.05g/cm? Reduced to 0.9-0.95g/cm, with the same die shrinkage, high impact strength, superior scratch resistance and more stable movement, it is used in automobile door panels, columns, instrument panels, air conditioning shells, etc.

Supercritical foaming material: PCL micro foaming PA material has more foaming power, lower warpage rate, better injection power, more obvious material saving and high performance persistence. It is used in engine hood, etc.

Thin wall and high rigidity materials: bumper, etc

In order to effectively reduce the weight of automobiles, more and more OEMs further use engineering plastics in large quantities. The thin-walled bumper can further reduce the weight.

Advantages of thin wall: reduce product weight and reduce fuel consumption; Shorten injection molding cycle and improve production power.

The development of thin wall: the 70-80 era of the 20th century > 4mm; 3-4mm in the 1990s; 2.5-3mm at the beginning of the 21st century; Now ≤ 2.5mm.

Pa/ppo material: fender, etc

Pa/ppo material has high mobility, high toughness, and can be electrostatic sprayed. It can be used instead of metal in automobile exterior decoration such as fender, reducing weight by more than 50%.

Pa/ppo engineering plastics are used in fender due to their weather aging resistance and excellent molding processability. The fender is the outer panel of the car body that conceals the wheels. During the driving process of the car, avoid the sand, gravel and mud rolled up by the wheels splashing to the bottom of the car.

Micro foaming PP material: inner door panel, etc

Micro foaming modified PP is a potential lightweight material because of its low density, high elasticity and low cost.

Micro foaming modified PP material refers to the polypropylene material as the matrix. After the injection molding process, under the effect of gas internal pressure, the middle layer of the product is filled with closed micropores with a size of 10 to tens of microns, and both sides have a dense skin structure, so as to achieve the purpose of material saving and weight reduction. Because the micro foaming modified PP material uses a lower stress, the injection molding is smoother, straighter and more stable in size. At the same time, because of the support effect of micro pores, it can also be used to deal with the shrinkage marks of parts.

This article is from Jiangmen Engineering Plastics:http://m.latexbbs.com/