With the development of building science and technology, incredible 3D printing construction technology emerged, which greatly reduced the manpower and capital investment of the building. Recently, the technical team of Nanfeng Co., Ltd. cooperated with Professor Wang Huaming of Beijing University of Aeronautics and Astronautics to develop a heavy metal 3D printing technology. It has made breakthroughs in key technologies and succeeded in making physical and chemical properties superior to forgings in the laboratory. Nuclear power components of heavy equipment metal parts.
Heavy metal 3D printing technology is an internationally-adopted new technology for short-flow, green, precise and digital additive manufacturing of heavy-duty metal components. It can be widely applied to millions of kilowatts of nuclear power equipment and millions of kilowatts of supercritical and ultra-supercritical thermal power units. And the manufacture of heavy metal components such as hydropower, petrochemicals, metallurgy, shipbuilding, and other major modern industrial equipment alloy steels.
In the traditional forging process, if a 50-ton nuclear power component is to be produced, at least 180 tons of steel ingot material should be put into an electric arc furnace of 200 tons or more for smelting and casting, and after forging and heat treatment of more than 10,000 tons of machine, many It takes more than 6 months to reach more than a dozen processes. Today, as long as a 3D printer, a high-temperature fused "print" process can see the finished product.
At present, the construction period of nuclear power plants is 60 months. The introduction of additive manufacturing technology to manufacture heavy metal components can be compressed for up to 50 months. In the past, the bottleneck in the development of nuclear power plants was the high cost, and the electricity price was also high. After the compression cycle, electricity prices will be lower than thermal power generation. Nowadays, with the heavy metal 3D printing technology, individual components can be customized according to customer needs, especially some key metal shaped parts in nuclear power equipment, and breakthroughs can also be attempted. This not only greatly reduces the construction cost, but also increases the power generation efficiency of the nuclear power unit.
Nuclear power represents the highest level of industry. If all standards are successfully met, such a new heavy metal 3D printing technology can be used in the manufacturing of other equipment.
Gabion & Reno mattress is
a galvanized double twisted hexagonal woven mesh compartmented basket
with a rectangular mattress shape. The compartments or cells of the reno
mattress are of equal size and dimension and are formed by internal
diaphragms. Gabion & Reno mattress have been used for channel
linings, river training, soil retention, slope stabilization and other
applications successfully throughout the world for over 100 years.
Double twisted gabion & reno mattresses offer many advantages, such as flexibility, durability, strength, permeability, ecology, reliability, longevity, low cost and an aesthetic appearance. The thickness of gabion mats is usually between 0.15-0.5m. It is similar to gabion box which could be divided by several cells and adopts thicker diameter wires to form mesh edge.
Features of Gabion & Reno mattress
Flexibility
One of the most important advantages of
gabion & Reno mattresses is their flexibility both for the
individual unit and the overall. The construction of the units permits
it to tolerate differential settlement without failure. This property is
especially important when a structure is on unstable soil conditions or
in areas where scour from wave action or currents can undermine the toe
of the structure and cause structural settlement.
Durability
Gabions & Reno mattresses built from
high strength double twisted hexagonal mesh filled with natural hard
durable stone and connected together to create a monolithic mass
structure capable of undergoing structural movement without any loss of
structural integrity creating a highly durable structure.
Strength
Gabions & Reno mattresses possess the
strength and flexibility to withstand forces generated by water and
earth masses. The most important and relevant strength characteristics
pertaining to gabion and reno mattress design standards are the mesh
punch strength, the mesh tensile strength, the pull apart resistance
strength of the mesh, and the corrosion resistance of the mesh. The
strength values of the double twisted mesh are located within the
individual product specifications for each product and are represented
in ASTM A975-97.
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