Device and method for measuring arc spatial distribution in vacuum arc remelting process
A vacuum arc remelting and spatial distribution technology, applied in measuring devices, electromagnetic measuring devices, electrical devices, etc., can solve the problems of inability to track the arc axial position in real time, arc position error, and unclear arc distribution position, etc. The effect of improving vacuum arc remelting process and improving ingot quality
Active Publication Date: 2021-12-03
NORTHEASTERN UNIV LIAONING
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Problems solved by technology
[0006] 1) As the vacuum arc remelting process progresses, the arc area increases accordingly, and the existing technical solutions cannot track the axial position of the arc in real time, so the predicted arc position will have a large error
[0007] 2) The final prediction is the position of the center of mass of multiple arcs, and it is not clear how to determine the distribution positions of all arcs
Method used
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[0039] The present invention will be further elaborated below in conjunction with the accompanying drawings of the description.
[0040] Such as figure 1 As shown, the present invention provides a device for measuring the spatial distribution of the arc in the vacuum arc remelting process, which is installed outside the electric arc furnace body and includes a sensor arrangement frame 12, an automatic lifting unit, a Hall effect sensor 5, a thermocouple 3, a multi-layer The lifting coil 4 and the consumable electrode 16, wherein the sensor layout frame 12 is set on the outside of the electric arc furnace body 15; the multi-layer lifting coil 4 is slidably installed on the sensor layout frame 12; a plurality of Hall effect sensors 5 are respectively layered And the column is fixedly installed on the multi-layer lifting coil 4, and a plurality of thermocouples 3 are arranged longitudinally from the outer wall of the electric arc furnace body 15 to go deep into the interior; the ...
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The invention discloses a device and method for measuring the spatial distribution of arcs in a vacuum arc remelting process. The device includes a sensor arrangement frame, an automatic lifting unit, a Hall effect sensor, a thermocouple, a multi-layer lifting coil and a consumable electrode, wherein the sensor The layout frame is set on the outside of the electric arc furnace body; the multi-layer lifting coil is slidably installed on the sensor layout frame; multiple Hall effect sensors are fixedly installed on the multi-layer lifting coil in layers and columns, and multiple thermocouples are arranged vertically Arranged on the furnace wall of the electric arc furnace; the multi-layer lifting coil is connected with the actuator of the automatic lifting unit through the bracket; the consumable electrode is suspended in the furnace body and the upper part of the ingot. The invention can measure the real-time arc distribution of the vacuum arc remelting process, and based on the measurement result, it is possible to further study how to control the arc distribution so as to improve the vacuum arc remelting process and improve the quality of product casting ingots.
Description
technical field [0001] The invention relates to a vacuum arc remelting technology, in particular to a device and method for measuring the spatial distribution of arcs in the vacuum arc remelting process. Background technique [0002] As the final step of the high-end alloy vacuum induction melting-electroslag remelting-vacuum arc remelting (VIM-ESR-VAR) triple process, the vacuum arc remelting process has been widely used in the preparation of superalloys, titanium alloys, stainless steel and high-strength steel And other forgings, and play a decisive role in the quality of product ingots. However, the ingots produced by the VAR process still have various defects such as black spots, white spots, and annual rings. These defects greatly reduce the service performance and service life of the ingots, and even lead to their direct scrapping. [0003] A large number of research works have shown that the spatial distribution of the arc between the ingot and the consumable electro...
Claims
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IPC IPC(8): G01B7/00G01M1/12
CPCG01B7/003G01M1/122
Inventor 李宝宽崔家骏刘中秋齐凤升郄文琪
Owner NORTHEASTERN UNIV LIAONING