Electrolysis device and method for efficiently extracting slag inclusion in steel
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An electrolysis device and a technology for inclusions, applied in the field of metallurgical engineering, can solve the problems of inability to meet production needs, the solution cannot meet the requirements, and the electrolysis time is long, and achieve the effects of improving electrolysis efficiency, increasing stirring effect, and accelerating electrolysis.
Inactive Publication Date: 2015-02-25
XUZHOU YIZHONG STAINLESS STEEL CO LTD
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It is characterized in that an automatic stirring device is arranged around the steel sample to be tested, which can solve the problem of nodulation on the surface of the sample to a certain extent, but it is a large sample electrolysis method, and the sample electrolysis cycle is 10 to 30 days, and the electrolysis efficiency is low
There are also some devices whose main components are similar, but the solutions provided for increasing the electrolysis speed cannot meet the requirements, that is, they lack substantial devices for increasing the speed.
[0007] The above electrolysis devices all have a common shortcoming, that is, the electrolysis time is too long, which cannot meet the production demand
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example 1
[0049] In this embodiment, three groups of comparative experiments are set up by controlling the number of anodes.
[0050] In the test, the power supply voltage of the three groups of experiments was controlled to be 5V, the steel samples were not rotated, the central stirring was 4s / rotation, the temperature was controlled at about 0°C, and the electrolysis time was 12 hours. The only variable in the three sets of experiments was the number of anodes. The number of anodes is 1, 2 and 3 respectively and numbered 1, 2 and 3 respectively.
[0051] The following are the experimental results:
[0052]
[0053] It can be seen from the experimental results in the above table that the present invention can not only extract the inclusions in the steel sample, observe its complete three-dimensional structure and composition, but also greatly improve the electrolysis efficiency by adopting the method of parallel connection of anodes.
example 2
[0055] In this embodiment, three groups of experiments are set up by controlling the relationship between the anode rotation and the center rotation.
[0056] In the test, the power supply voltage of the three groups of experiments was controlled to be 5V, three anodes were connected in parallel, the central stirring was 4s / revolution, the temperature was controlled at about 0°C, and the electrolysis time was 12 hours. The only variable for the three sets of experiments was the anode rotation versus center rotation. They are normal center agitation without anode rotation, same direction anode rotation and center agitation, reverse anode rotation and center agitation, and are numbered 4, 5, and 6 in sequence.
[0057] If the rotation speed of the anode is 6s / revolution. The following are the experimental results:
[0058]
[0059] It can be seen from the experimental results in the above table that the present invention can not only extract the inclusions in the steel samp...
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Abstract
The invention discloses an electrolysis device and method for efficiently extracting slag inclusion in steel, and belongs to the technical field of metallurgical engineering. The device comprises a power supply, an electrolytic bath, a seal cover and a temperature gauge and further comprises a cathode, at least two anodes, at least two anode rotating devices, a center rotator, an insulating support and an anode connecting frame. The electrolytic reaction area is increased through increasing anode sample number and adopting a sample parallel connection mode, and at the same time, the electrolysis is accelerated through sample rotating; same or opposite rotation direction between the anode and a center stirrer is guaranteed, and the slag inclusion in partial electrolyzed steel sample is rapidly separated from the steel sample and mass transfer by a molten pool is accelerated through controlling the rotating speed of the anode and controlling the rotating speed of the center stirrer, so that the nodulation of the sample surface is avoided, and the electrolytic efficiency is improved; a conductive metal gas-guide tube in which air holes are formed is adopted by the cathode, and argon is introduced and enters the electrolyte through the air holes, so that the stirring effect is improved; and at the same time, inert gas guarantees that the electrolyte is in an oxygen-free state, so that the anodes are prevented from being oxidized by oxygen in air.
Description
technical field [0001] The invention belongs to the technical field of metallurgical engineering, in particular to an electrolysis device and method for efficiently extracting inclusions in steel. Background technique [0002] The quality of steel depends to a certain extent on the type, shape, size and distribution of non-metallic inclusions in steel. The content of non-metallic inclusions is already an important indicator for evaluating steel grades. Except for metal inclusions, timely detection and analysis of whether the removal degree of inclusions meets the user's needs and technical specifications has important guiding significance for the removal of inclusions in the subsequent steelmaking process. [0003] At present, the methods for separating and detecting non-metallic inclusions in steel mainly include large sample electrolysis and anhydrous electrolysis. [0004] Among them, the patent "In-Situ Analysis of Inclusion Particle Size in Metal Materials" and the pat...
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