There are demands for mobile microwave power sources for different applications, such as the rock melting and drilling, for example. The 28 GHz gyrotron has been proposed as radiation source for such purpose [1]. For frequency ~ 28-30 GHz or more magnetic field ~1-3 T are needed for resonance interaction of the electron beam with eigenmodes of a circular waveguide at gyrodevices. Magnetic...
In the aluminum industry, development of highly efficient and fast heating methods of aluminum billets is expected. The induction heating by rotating the aluminum billet in strong DC magnetic field generated by HTS coils is one of the candidates for the heating methods in the aluminum extrusion processes, since this method has the large heating capacity with higher energy efficiency and faster...
It is expected to build a sustainable social system that uses "hydrogen" as a fuel to generate electricity without emitting CO2. To realize this, technology for storing a large amount of hydrogen is indispensable, and storage as liquid hydrogen is ideal. However, the efficiency of the cooling device in the temperature range around 20 K required for long-term storage with liquid hydrogen is...
Electron-beam additive manufacturing, or electron-beam melting (EBM) is a type of additive manufacturing, or 3D printing for metal parts. The raw material (metal powder or wire) is placed under a vacuum and fused together from heating by an electron beam. This technique is distinct from selective laser sintering as the raw material fuses having completely melted.
For industries such as...
In industries, there are many issues against the implementation of conventional heating furnaces. First, the government recently executed an environmental protection policy that requires industries to use better technologies against low efficiency and CO2 emissions, etc. Second, industries use old and inefficient technologies for heating metals with large capacity and low efficiency. Also, the...
The purpose of applying electromagnetic stirring was to change the flow field of molten steel in crystallizer during the solidification of casting blank, ultimately improving the quality of the steel. The strong static magnetic field was generated by the high-temperature superconducting magnets and rotated outside the crystallizer. The molten steel cut the magnetic line in the crystallizer to...
The high-temperature superconducting induction heating technology could widely use in industrial production such as penetrating heating, quenching heating, welding and melting of steel. The steel uses the strong static magnetic field generated by the superconducting magnets of the high-temperature superconducting induction heating device. The steel rotate in the air gap and cut magnetic lines...
