Aluminum alloy,magnesium alloy,plastic steel,strength steel,The car is now lightweightMaterialsThe 4 main materialsIn the development of automotive technology, the eternal theme is safety, energy saving and environmental protection. Safe and comfortable functional equipment increases the weight of the car. Energy saving and environmental protection require reduced carbon emissions and better recycling. According to some studies, in general, every 10% reduction can save fuel.3%~%Automobile emissions and fuel consumption are also proportional, and the realization of lightweight materials will also reduce carbon dioxide.

Although the proportion of steel application has declined, it is still the main steel, and plastic is almost the same as cast steel, or even slightly better. Aluminum alloy is in the backYes, but now there is also some growth momentum, although the amount of aluminum alloy is still very small, but the growth rate is now very high. Lightweight materials are used in automobiles. The current situation can be divided into the following types. Aluminum alloy products in automobiles can be roughly divided into two categories. Aluminum castings and deformed aluminum alloys mainly include plates, extruded profiles, forged aluminum alloys and so on.

Aluminum used in cars3/4The above are castings. Because the density of aluminum is relatively low, it is more suitable for the production of high-stress structural parts of the hydrogenated amount of alternative materials. Aluminum alloying can increase the tensile strength45When the level of No. steel will be used for high-stress parts, the thickness of the parts needs to be increased to make up for this shortcoming of insufficient strength, so B crawler steel can reduce weight.50%Aluminum is characterized by low density is steel1/3The piston usage rate is an example of good hydrogenation effect, high corrosion resistance, natural oxide film formed on the surface of aluminum, and better fixation resistance.

Not easy to rust to maintain a beautiful surface aluminum wheels, the reason for the widespread use is this. Flexible strength design aluminum alloy will be the strength at normal temperature, not lower than cast iron can be cast aluminum or die-cast fire cylinder, cover cylinder block and other parts, high thermal conductivity compared with cast iron, thermal conductivity is about three times higher, so it is more suitable for heat exchange parts that need heat dissipation, which is also required by aluminum piston. High conductivity conductivity of about copper60%The density is copper.1/3Green with half the weight of copper can transmit the same amount of charge.