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What is magnesium alloy? what is the difference between magnesium alloy and aluminum alloy / zinc alloy?

Magnesium alloy is the lightest material being applied in the industry. It often being used in mobile phone, iphone, ipad, tablet, camera, automobile, aerospace, now it also being used in high power LED because of its high performance of heat dissipation.

Magnesium alloy products has become a new trend in Shenzhen.It is total environmental friendly **0% recyling. it has many advantages compared with zinc alloy, aluminum alloy or plastic.China is a place that rich of magnesium resources

Magnesium alloy is a magnesium-based alloy by adding other elements. Its characteristics are: low density (around 1.8g/cm3 magnesium alloy), high specific strength, high elastic modulus ratio, good heat dissipation and vibration resistance, better ability to withstand shock loads than aluminum alloy, good performance for corrosion resistant of organic and alkali. The main alloying elements are aluminum, zinc, manganese, cerium, thorium and zirconium or a small amount of cadmium. Currently the most widely used is magnesium aluminum alloy, followed by magnesium-manganese alloy and Zinc magnesium zirconium alloy. Mainly used in aviation, aerospace, transportation, chemical, rocket and other industrial sectors. In practical usage of metal, magnesium is the lightest metal, its proportion is about 2/3 compared with aluminum, 1/4 of the iron. It is the lightest of the practical metals, with high strength, high rigidity.
 
Thanks to China's auto industry and 3C industries upgrade and Chinas significantly improved economic status, magnesium alloy industry is optimistically braced by the market. Among them, lightweight, environmentally friendly needs of the automotive industry, especially the development of new energy vehicles, as well as research and development of magnesium alloy technology and recycling technology continues to progress, is good news for promoting the widespread use of magnesium alloys.
 
"********7 China Market Outlook magnesium alloy industry forecasts and investment analysis report"[1] is expected in ***5, the domestic automobile magnesium alloy will reach *8kg /vehicles, while China's auto sales will exceed *8 million over the same period, passenger car sales will reach *9.6 million, proprietary brand car enterprises through industry mergers, technological development and market channel development, sales will exceed *0 million.
 
At the same time, the application of magnesium alloys in aviation aerospace and chemical industries will also grow. Due to the steady growth of the downstream end automotive consumer market, Qianzhan.com expect in ***5, the global market is 6 million tons of magnesium alloy, a compound annual growth rate(CAGR)of *0%**5% ( include the application of magnesium alloy in transportation, 3C, aviation aerospace, pharmaceutical and chemical fields ).
 
Feature
Low density, better performance ratio, good shock resistance, good thermal/ electric conductivity properties, good processing properties, poor corrosion resistance and easy oxidation and burning, poor heat resistance.
 
Feature
[2]in processing, its corrosion and mechanical properties has many features: quick heat dispelling, light weight, good rigidity, with a certain degree of corrosion resistance and dimensional stability, impact resistance, abrasion resistance, good attenuation performance and ease of recycling; in addition, it have high thermal and electrical conductivity, non-magnetic, non-toxic and good shielding characteristics.
 
While the weight proportion of the magnesium alloy is higher than plastic, but the strength and modulus of elasticity is higher than the plastic per unit weight, so the same intensity, in magnesium alloy parts can be thinner and lighter than in plastic. Furthermore, since the strength of the magnesium alloy is higher than that of aluminum and iron, therefore, the weight of parts in aluminum or iron can be reduced, while does not reduce the strength of the components.
 
Within the elastic range, magnesium absorbs a half larger energy absorption than aluminum alloy subjected to impact loading, so magnesium alloy has good vibration and noise reduction performance.
 
Magnesium alloy has lower melting point than that of aluminum alloy, good die casting performance. Magnesium alloy castings has comparative tensile strength with aluminum castings, generally up to **0Mpa, maximum up to **0Mpa. Yield strength and elongation is similar to that of aluminum alloy.
 
Magnesium alloy is also a good corrosion resistance, electromagnetic shielding, anti-radiation performance, can be **0% Recycling.
With high stability and precision magnesium alloy die casting parts, it can be used for high precision machining .
Die-cast magnesium alloy has good formability, die casting minimum wall thickness up to 0.5mm, adapt to all kinds of die casting automotive manufacturing.
 
Under the same load condition, Magnesium has **0 times higher vibration reduction than that of aluminum, **0~**0 times higher than that of titanium alloy. Good electromagnetic shielding, 3C product cover (mobile phone and laptop) requires good resistance to electromagnetic protection, and magnesium alloy cover can absorb electromagnetic interference with frequency more than **0db. Good texture, magnesium cover appearance and touch feeling is great, made the product have more luxurious feeling, and not easy to corrosion in the air.
 
Magnesium heat conductivity coefficient *4W/mk, aluminum heat conductivity coefficient **0W/mk; near one time difference.
 
So, magnesium is the most ideal material in application of LED and other lightings, auto components, and other components with high quality requirement, high strength, high tenacity.


 The company equipped with 2 sets magnesium die casting machine, 4 sets aluminum die casting machine, 4 sets zinc die casting machine, as well as robot melt treatment, punching machines(for removing the gate), 8 production line for secondary processing, such as: removing burrs and sharp edges, polishing, tapping, grinding, etc.
 
The company has rich experience in surface finishing, such as: painting, electroplating, powder coating, water-transfer printing, pad printing, silk screening, or high gloss polishing without surface finishing.
 
The company also produce die casting molds, plastic injection molds in-house.
 
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