Magnesium alloys are already used in automobiles

Saic took the lead in using magnesium alloy in santana car transmission housing, shell cover and clutch housing; Faw has trial-produced and developed small batch samples such as engine cover cover, clutch housing, gear chamber and gear cover. The magnesium alloy research and development system of SECOND Automobile has also been formed. Recently, the 630, 800 and 1600 magnesium alloy die casting production lines put into production can batch produce 16 kinds of parts such as transmission cover, pedal, vacuum booster separator and brake valve body of truck, and have been loaded into large quantities and sold in the market.

European and American auto manufacturers use magnesium alloy to make auto parts

Auto manufacturers use magnesium alloy for some auto parts

general

Cylinder head, oil filter, air filter shell, distributor, fender bracket,

Ashtray door, steering column, headlight cover, headlight bracket, headlight frame

ford

Distributor, fender bracket, clutch housing, brake and clutch pedal

Bracket, steering column locator, transfer box

Chrysler transmission housing

Volkswagen crankcase, transmission housing, supercharger housing, timing gear, clutch housing

Volvo throttle link, hand brake link, door handle

Mercedes seat frame

Audi dashboard

Porsche fans, fan frames, wheels

Using magnesium alloy to manufacture motorcycle engine, hub, reducer, rear armrest and shock absorption system and other components, can not only reduce

Light vehicle quality, improve vehicle acceleration and braking performance, but also can reduce the exercise of vibration, pollution discharge, noise and fuel consumption, can be improved

High ride comfort.

The next target for the use of magnesium in automobiles is powertrain components such as engines. In order to adapt to the higher working temperature of engine parts

In recent years, European and American countries have developed AE, Mg-al-Ca, Mg-al-Ca-RE, AJ series and ZAC8506

MRI201S, MRI202S, MRI203S and other high-temperature magnesium alloys. Recently, it is under development

Corrosion resistant magnesium alloys, flame retardant magnesium alloys, high strength and high toughness magnesium alloys and wrought magnesium alloys have been developed successfully.

The application of wrought magnesium alloy in car body also has great potential, mainly used in car body components (door, trunk, hair)

Motor cover, etc.), car door and window frame, seat frame, chassis frame, body frame, etc. Wrought magnesium alloys are mainly

Mg-al-zn series alloys (AZ31C, AZ61A, AZ80A) and Mg-Zn-Zr series alloys (ZK60) are classified into two categories.

Saic: including the instrument panel skeleton (CCB), passenger and rear seat skeleton, front subframe, rear subframe, rim and front cabin bracket, etc

Theoretically, magnesium alloy ingot can produce nearly 1/3 more die castings than aluminum alloy ingot with the same tonnage because of its lower proportion

Under the material price system, magnesium alloy die casting should have a significant cost performance advantage. However, in a traditional die-casting process,

It is still difficult to obtain direct price competitive advantage for magnesium alloy castings. Because, the aluminum alloy die casting waste can be directly remelted by the furnace

Simple refining, or even no refining at all, can be reused in die casting production, enabling cheap on-site regeneration of process waste.

As the die casting waste of magnesium alloy contains solid inclusions, it needs flux to be refined and removed, and the recovery of its chemical composition is adjusted

(especially iron reduction) also requires a special process environment. The current state of the technology results in process waste requirements accounting for about 50% of the feed

The long distance return to magnesium alloy smelter for refining and regeneration greatly increases the material cost and makes magnesium alloy die castings lose their cost performance advantage.

In the end, the application of magnesium alloy in automobile is limited to the field that can give full play to the advantages of magnesium alloy properties, so it is difficult to expand the application space

And scale.