Alloy melting customization
Time：2021-11-10 Author：Changsha Xinkang scientific research material service platform
Alloy smelting is to produce alloys with satisfactory chemical composition and high melt purity.
Our commonly used smelting methods are:
Vacuum Induction Melting
Vacuum induction melting (VIM for short) refers to a metallurgical method that uses electromagnetic induction to generate eddy currents in metal conductors to heat the charge under vacuum conditions. VIM is mainly used in the production of special alloys such as special steels, precision alloys, electrothermal alloys, superalloys and corrosion-resistant alloys.
Vacuum arc melting
Vacuum arc smelting is a method of smelting metal using arc heating under vacuum conditions. Vacuum arc melting electrodes are divided into two types: consumable electrodes and non-consumable electrodes. The consumable electrode is made of the material to be smelted (that is, the charge), which is gradually consumed during the smelting process, and then drops into the crystallizer to condense into ingots after melting. Non-consumable electrodes are made of high melting point materials such as tungsten, which are basically not consumed during the melting process of the charge. Currently, they are only used in the laboratory to study and manufacture refractory metals and metal carbides.
Vacuum electron beam melting
Under high vacuum conditions, the cathode is heated by the high-voltage electric field to emit electrons, and the electrons are collected into a beam. Under the action of the accelerating voltage, the electron beam moves to the anode at a very high speed. Under the action of and deflection coil, it accurately bombards the bottom ingot and material in the mold, so that the bottom ingot is melted to form a molten pool, and the material is continuously melted and dropped into the molten pool, so as to realize the melting process, which is the vacuum Electron Beam Melting (EB).
Vacuum suspension melting
Vacuum induction Electromagnetic Levitation Melting (Vacuum induction Electromagnetic Levitation Melting) technology refers to the use of electromagnetic fields to make the molten pool in a suspended state during the vacuum melting process. The electromagnetic coil is used to generate an alternating electromagnetic field, which induces a current in the metal in the coil, and the induced current heats and melts the metal. At the same time, the electromagnetic force formed by the interaction between the electromagnetic field and the induced current suspends the metal melt, completely eliminating Crucible contamination caused by the melt coming into contact with other solid walls.
The raw materials used in zone melting technique are generally first made into sintered rods. The sintered rods are fixed with two chucks and placed vertically in the heat preservation tube. High-frequency coils or focused infrared rays are used to heat the part of the sintered rods, so that the melting zone can be removed from the sintered rod. One end is gradually moved to the other to complete the crystallization process. The method does not require a crucible, and the crystals grown are of high quality, and are often used for physical purification of materials, as well as for growing crystals, and can produce gem materials such as corundum, YAG and scheelite.
We can choose different process routes according to customer requirements and the composition characteristics of the alloy, and give full play to the characteristics of each smelting process to provide customized processing. For more research materials, please visit our official website:http://test.xk-materials.com/