Nov 12,2021

3D-printed bones successfully applied, freeing patient from metal 'armor'

Over the years, the advancement of orthopedic medical technology has been inseparable from the role of internal fixation devices. In the past, patients with fractures often had to lie in bed for a long time, relying on plaster casts or traction to stabilize the local bones and allow them to heal slowly. After the 1980s, internal fixation metal devices gradually entered clinical use, helping patients reconstruct bone structures and significantly shortening the recovery period. However, limited by traditional technology, only some regular-shaped internal fixation metal devices, either round or square, could be produced. Taking the atlas and axis, the most complex structures in the human spine, as an example, their shapes are irregular, and traditional implants are clearly unable to adapt to the complex structure of human bones.

Nov 12,2021

New breakthrough in room-temperature 3D printing of metal objects

The development of this metallic gel began with a solution of micrometer-sized copper particles suspended in water. Scientists first added a small amount of gallium-indium alloy (EGaIn) and hydrochloric acid to the solution. The hydrochloric acid adjusted the pH of the water to 1.0, removing oxides from the EGaIn and temporarily turning it into a liquid metal. Then, the copper particle solution and the liquid EGaIn mixture were stirred, allowing EGaIn particles to adhere to the stronger copper particles, forming a metallic gel "network" of copper particles connected by EGaIn bridges in the aqueous solution. Methylcellulose was added to expand the mixture.

Jul 03,2024

Mastering core technologies in 3D printing metal powders to promote industry development. As a strategic emerging materials industry in the country, the lack of product standards has always plagued the development of the 3D metal printing industry.

The lack of product standards in 3D metal printing, a strategic emerging materials industry for the country, has long plagued the industry's development and hindered the connection of the industrial chain, including powder products, printing equipment, and product stability. In 2019, the company, in collaboration with domestic technological forces, overcame the technical difficulty of the non-flowability of Chinese aluminum alloy powder. In the same year, it broke through the Western technological barriers of 3 high-temperature alloy powders, allowing domestic aerospace and military industries to completely break away from their long-term dependence on foreign powders and solve the "bottleneck" problem of key powders.

Jul 04,2024

Domestically pioneering plasma atomization powder technology... bringing 3D printing into daily life

Plasma atomization powder technology has a significant advantage over traditional gas atomization technology. We can achieve a powder recovery rate of 80%, which not only significantly reduces the cost of the powder but also improves its quality, greatly increasing the product's new content.