Dongguan Tianyao Hardware Industrial Co., Ltd
Dongguan Tianyao Hardware Industrial Co.,Ltd
 
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Telephone:+86 769 8111 1029
Mobile phone:+86 158 1371 8102
Email:dudley@tianyaowj.com
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Address: Shangzhong Road, Shangdi Villiage, Liaobu Town, Dongguan, Guangdong, China

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The characteristics of magnesium alloy die casting

Number of visits: Date:2016年6月14日 11:56

Abstract:

 

Dongguan tin yiu hardware industrial co., LTD. Is an enterprise specializing in the production of magnesium alloy die casting, committed to the production and processing, technology development, product application in one of the high-tech enterprise. Mg alloy die casting in the tin yiu expert explains the characteristics of magnesium alloy die casting to us are as follows:

 

 

 

1: chemical physical properties

 

To join other elements for magnesium based alloys. Its features are: small density (1.8 g/cm3), higher than strength, elastic modulus, good shock resistance, bear impact load ability than aluminum alloy, organic matter and alkali corrosion resistance performance is good. The main alloy elements are aluminum, zinc, manganese, cerium, thorium, and a small amount of zirconium or cadmium, etc. Is currently the most widely used magnesium aluminium alloy, the second is the magnesium manganese zinc magnesium alloys and zirconium alloys. It is mainly used in aviation, aerospace, transportation, chemical industry, the rockets and other industrial sectors.

 

In practical metal is the lightest metal, the proportion of magnesium is about two-thirds of aluminium, iron is a quarter. It is the lightest metal in practical metal, high strength, high rigidity.

 

 

 

2: the characteristics of magnesium alloy

 

The processing and mechanical properties and corrosion has many features: light quality, good rigidity, has certain corrosion resistance and dimensional stability, impact resistant, wear resistant, good attenuation performance and easy to recycle; In addition, a high thermal conductivity and electrical conductivity, nonmagnetic, good shielding and non-toxic characteristics.

 

Application: apply to magnesium alloys are widely used in portable devices and automotive industries, achieve the goal of lightweight.

 

Although the proportion of magnesium alloy heavier than plastic, and unit weight of strength and elasticity rate is higher than plastic, so, the strength of the parts under the same condition, the magnesium alloy parts can do better than plastic thin and light. In addition, because of the specific strength of magnesium alloys is higher than aluminum and iron, therefore, without reducing the strength of the parts, can reduce the weight of the aluminum or iron parts.

 

Magnesium alloy is relatively than the highest intensity (the ratio of the intensity and quality). Stiffness ratio (the ratio of the stiffness and mass) close to aluminum alloy and steel, far higher than that of engineering plastics.

 

 

 

3: magnesium alloy application

 

At present, the application of magnesium alloys in automotive components can be summarized as two categories.

 

(1) class. Such as clutch shell, the cover, the dashboard, gear case, crankcase, before the engine cover, cylinder head, air conditioner shell, etc.

 

(2) class. Such as the steering wheel, steering, brake holder, seat frame, car mirror stents, distribution, etc.

 

 

 

According to the relevant research, the car used in automobiles, 60% of fuel used is self-respect, car every reduce 10% weight, its fuel efficiency can increase by more than 5%; Car every reduce weight 100 kg, 0.7 L per hundred kilometers fuel consumption can be reduced, 1 L fuel can reduce CO2 emissions per save 2.5 g, annual emissions by more than 30%. So auto weight reduction and energy to the environment is very large, the influence of auto lightweight into inevitable trend.

 

 

 

Mobile phone, laptop LCD screen size increases year after year, in their branches to use of the shell on the back of the frame and the magnesium alloy.

 

 

 

Although the coefficient of thermal conductivity of magnesium alloy is less than the aluminum alloy, however, dozens of times higher than plastic, therefore, magnesium alloy used in electrical appliances, can effectively integrate internal heat to the outside.

 

Internally generated heat and cooling parts on the exterior of the computer and projector using magnesium alloy. TV shell used on magnesium alloy can do without ventilation.

 

Electromagnetic wave shielding, electromagnetic shielding properties of magnesium alloys are better than the effect of shielding film plating on plastic, therefore, the use of magnesium alloy electroplating process of electromagnetic wave shielding film.

 

In the hard drive in the readout device such as the vibration source of nearby use magnesium alloy parts. If the use of magnesium alloy of the fan blades, low vibration can be reduced to SAO. In addition, in order to improve the absorb shock after car hit and lightweight, the use of magnesium alloys on the steering wheel and seat.

 

Although the coefficient of thermal conductivity of magnesium alloy is less than the aluminum alloy, however, dozens of times higher than plastic, therefore, magnesium alloy used in electrical appliances, can effectively integrate internal heat to the outside.

 

Internally generated heat and cooling parts on the exterior of the computer and projector using magnesium alloy. TV shell used on magnesium alloy can do without ventilation.

 

 

 

Electromagnetic wave shielding, electromagnetic shielding properties of magnesium alloys are better than the effect of shielding film plating on plastic, therefore, the use of magnesium alloy electroplating process of electromagnetic wave shielding film.

 

 

 

In the hard drive in the readout device such as the vibration source of nearby use magnesium alloy parts. If the use of magnesium alloy of the fan blades, low vibration can be reduced to SAO. In addition, in order to improve the absorb shock after car hit and lightweight, the use of magnesium alloys on the steering wheel and seat.

 

 

 

4: mechanical processing performance

 

Magnesium alloy is smaller than other metal cutting resistance, when mechanical processing, can be faster processing.

 

 

 

5: good resistance to pitting

 

Magnesium alloy compared with other metal deformation resistance is big, caused by the collision of sag less than other metals.

 

Of vibration, shock absorbing: as a result of the magnesium alloy of vibration energy absorption performance is good, used on the drive and transmission parts can reduce the vibration. In addition, the impact energy absorption performance is good, is better than aluminum alloy has the elongation of magnesium alloy, shock, can absorb the impact energy without fracture.

 

 

 

Regeneration: magnesium alloy and plastic is different, it can easily be recycled use and not reduce its mechanical properties, and the plastic is very difficult to use without reducing the mechanical properties of regeneration. Compared with other metal magnesium alloys, low melting point, a little heat when regenerative melting energy is 4% of the energy consumed by a new materials.

 

 

 

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