Precision spray forming technology, abbreviated as PSF. This is one of the cutting-edge advanced metallurgical technologies in the world, capable of manufacturing various high-performance metal alloy materials while also possessing certain forming capabilities. Like 3D printing technology, PSF belongs to additive manufacturing technology, but its production efficiency is thousands of times faster than 3D printing. After pressure processing and heat treatment, the performance and quality of the material can replace powder metallurgy products of the same composition.
With its precision spray forming technology, FSFH Precision Spray Forming Technology Corporation has won the first prize in China's automotive industry science and technology, known as the "Nobel Prize in the Chinese automotive industry".
Four core competencies of precision injection technology
In the factory building of FSFH, metal is melted into a liquid state under the protection of inert gas at high temperature, and sprayed onto a special mold at a speed of about 300 meters per second. It is solidified and deposited at ultra-high speed to prepare high alloy material ingots with fine and uniform microstructure.
This is a new metal forming method, and powder metallurgy has long been the mainstream advanced metallurgical technology used in developed countries to manufacture high-performance fine-grained alloys.
Compared to powder metallurgy, precision spray forming technology has many highlights:
Higher efficiency
The solidification rate before deposition is about 10000 degrees per second, which can reach up to 100000 times the solidification rate of traditional casting; The production efficiency reaches 100kg per minute, which is 1000 times faster than 3D printing.
Better performance
After high-pressure spraying, the metal will be reshaped into a microstructure of micrometer sized grains. Depending on the alloy composition, the strength, wear resistance, toughness, high temperature or corrosion resistance, and service life that the material can achieve can be increased by 50% to several times.
Lower cost
Raw materials do not require expensive powders, even waste materials can be used; Can directly form hollow round ingots, reducing the process of manufacturing seamless ring fittings; Compared with traditional high-end production processes, the cost of this technology is 10% -50% lower.
Great potential
This technology can directly connect with traditional pressure processing and heat treatment processes such as forging, rolling, and extrusion, and has the potential to become a foundational technology for the transformation and upgrading of China's metal manufacturing industry.
Precision spray forming technology is the only high-efficiency additive manufacturing technology in the world that can simultaneously improve the lifespan, production cycle, and cost-effectiveness of metal products.
More importantly, this technology has a more "hardcore" competitiveness, which is to achieve large-scale industrial production. FSFH currently has an annual production capacity of 10000 tons of various high-performance alloys.
In the workshop of FSFH, we saw a batch of pipe samples used in ocean engineering, with clear color differences between the inner and outer layers of the materials.
After being coated with precision spraying technology, the inner wall of this pipe is made of wear-resistant and corrosion-resistant stainless steel, and the outer layer is made of high-strength steel that is resistant to bending and compression. The two materials achieve metallurgical bonding, and there is no need to worry about cracking or peeling of the two materials in subsequent processing such as forging, rolling, and heat treatment.
Nowadays, in addition to ocean engineering, aluminum alloys, aluminum based composites, high-temperature alloys, high-performance tooling tools, wear-resistant steel, and other materials used in aerospace weapons are all active in FSFH.