China's leading magnesium alloy material technology innovator: SHMH Light Alloy Material Technology Corporation is committed to the development and production of high-performance light alloy materials.
Over the past 40 years since its establishment, SHMH has successfully developed a number of internationally leading magnesium rare earth alloys, and successively established a national light alloy precision forming engineering research center and a magnesium material application research engineering center, allowing magnesium alloy materials to be used in aerospace, medical, energy And other industries shine. The research results have won the first and second prizes of National Technology Invention, the second prize of National Science and Technology Progress, and the first prize of National Defense Technology Invention.
It opened a new era of China's magnesium alloy human body implant devices and solid hydrogen storage magnesium alloy materials.
In the exhibition hall of the National Engineering Research Center for Light Alloy Precision Forming, various magnesium alloy parts from civil aircraft seat frames to military missile cabins are typical achievements of the SHMH R&D team, and the company has been deeply involved in the field of magnesium alloys for more than 30 years. "Trophy".
SHMH's research and development direction is closely integrated with the country's major strategic needs, and it has long been committed to researching and promoting the application of magnesium alloys with resource advantages in China's high-end products.
In the 1980s and 1990s, lightweight work in automobiles and electronic products became increasingly important. SHMH undertook the task of researching and developing the magnesium alloy gearbox housing and cover of Santana car. The ignition point of conventional magnesium alloys is only 520℃, which is much lower than the melting point of the alloys, which makes it flammable and difficult to produce. SHMH uses the method of co-electrolysis of rare earths and magnesium oxides to prepare rare earth magnesium master alloys. Magnesium was successfully combined to develop a high-performance flame-retardant magnesium alloy, which increased the ignition point of the magnesium alloy to above 935°C. The flame-retardant magnesium alloy developed is used in batches of electronic product housings and automobile gearboxes.
In 2000, SHMH established the National Engineering Research Center for Light Alloy Precision Forming. Today, this research center has become an important R&D base for magnesium alloy materials in China and one of the most influential teams in magnesium alloy research in the world.
Magnesium alloys have low strength and poor bearing capacity, which makes it difficult for the car wheels, cylinder blocks, engine brackets and other places where lightweight is most needed. After a long period of hard work, the SHMH R&D team discovered the triangular interlocking precipitation strengthening phase and thermally stable structure in the magnesium rare earth alloy, which increased the strength from 250mpa to 500mpa, and created a series of new high-performance magnesium alloy materials with new alloy grades. There are 5, 5 national standards and 2 international standards. Magnesium alloys have been successfully applied to civil aviation and automotive high-end manufacturing.
Most of the fracture internal fixation devices that are widely used clinically are made of non-degradable metals such as stainless steel or titanium alloys. Clinically, they are easy to cause stress shielding effects and affect bone healing. At the same time, the metal stents are difficult to degrade in the body, and have to bear the pain twice. Surgical removal.
Magnesium has degradable properties and is a beneficial element required by the human body. Can magnesium alloys replace traditional medical metals? Originally active and easy to oxidize, the industrial application of magnesium materials is restricted. Nowadays, the thinking has changed, and this characteristic has achieved the application of magnesium in medical degradable materials.
Since 2007, the SHMH R&D team from the perspective of clinical application needs, cleverly through the "phase potential control" and microstructure design of magnesium alloy materials, successfully developed "good biocompatibility, matching strength and toughness, uniform controllable "Degradable" patented medical biodegradable magnesium alloy. At the same time, in response to the undesirable phenomenon of magnesium alloy materials degrading too fast in the body to produce hydrogen accumulation, the R&D team has developed a biologically active coating that can degrade itself and can inhibit the rapid degradation of the substrate after several years of research and development, and successfully solved it. This key technical problem is solved. 16 human clinical trials of magnesium alloy bone nail products have been carried out, all of which have been successful.
In the field of magnesium-based energy materials, the SHMH team has developed high-capacity (>6wt%), long-life (cycle>1000 times), low-cost magnesium alloy solid-state hydrogen storage materials, and the large-scale magnesium-based solid-state hydrogen storage and transportation vehicles developed can achieve ton level The above hydrogen storage and transportation have huge application potential.