Differential pressure casting crucible furnace
A differential pressure casting and crucible furnace technology, which is applied in the field of metallurgical equipment and its surrounding supporting facilities, can solve the problems of refining the crystal grains of castings, unable to realize melt processing, etc., to improve performance, reduce nucleation activation energy, and improve microscopic The effect of tissue uniformity
Pending Publication Date: 2022-07-15
INNER MONGOLIA UNIV OF SCI & TECH
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Problems solved by technology
[0005] In the aluminum alloy differential pressure casting process, the main function of the crucible furnace is to provide aluminum alloy melt for the differential pressure casting equipment. The differential pressure casting crucible furnace in the prior art is just a simple melting furnace. Realize the treatment of the melt to refine the grain of the casting
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[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0032] The purpose of the present invention is to provide a differential pressure casting crucible furnace to solve the above-mentioned problems in the prior art, improve the melt nucleation rate, and promote the grain refinement of the casting, thereby improving the quality and performance of the casting.
[0033] In order to make the above objects, features and advantages of the present invention more clearly understood, the present ...
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The counter-pressure casting crucible furnace comprises a crucible, a heating element and an electromagnetic coil, the electromagnetic coil is arranged outside the crucible, the electromagnetic coil is connected with an external power source, the electromagnetic coil can generate a magnetic field, and the crucible is located in the magnetic field generated by the electromagnetic coil. During working, the crucible is heated by the heating element, so that the purpose of heating and heat preservation of an aluminum alloy melt in the crucible is achieved, and the aluminum alloy melt is kept in a molten state; an electromagnetic coil is arranged outside a crucible, the electromagnetic coil is connected with an external power supply, and the electromagnetic coil can generate a magnetic field after being electrified, so that electromagnetic treatment is applied to a melt in the crucible, an energy system in the melt is influenced, energy required for forming a critical crystal nucleus in the melt is compensated, and nucleation activation energy required in the nucleation process is reduced; and the melt is promoted to overcome nucleation barriers, so that the number of primary crystal nucleuses in the melt is increased, the nucleation rate in the melt is increased, the grain refinement effect on the final casting is achieved, and the performance of the finished casting is improved.
Description
technical field [0001] The invention relates to the technical field of metallurgical equipment and its peripheral supporting facilities, in particular to a differential pressure casting crucible furnace. Background technique [0002] Differential pressure casting, also known as "reverse pressure casting", is a process in which metal melt is filled into a mold with a certain pressure in advance under the action of pressure difference, and solidified to obtain castings. Under the action of high solidification and holding pressure, the metal melt can pass through the narrow intergranular gap, and the isolated liquid phase region can be well fed. It is very suitable for the production of castings with complex contours with high air tightness, and the contours of the castings are clear. , the size is accurate. During the differential pressure casting process, the pressure in the crucible is greater than the pressure in the mold. Under the action of the pressure difference, the a...
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IPC IPC(8): B22D18/00B22D35/04B22D35/06
CPCB22D18/00B22D35/04B22D35/06
Inventor 刘永珍麻永林陈重毅邢淑清宋志起鲍鑫宇宫美娜白庆伟
Owner INNER MONGOLIA UNIV OF SCI & TECH