Electrolytic polishing solution circulating device used for electrolytic polishing of stainless steel inner tube

Abstract

The invention relates to the electrolytic polishing treatment of a stainless steel inner tube, a circulating mode is used for forcing the gas out through the stainless steel tube, so that the influence of the gas on the electrolytic polishing of the inner wall can be completely avoided, the garbage generated by the electrolytic polishing can be removed through the high pressure flow circulating, and the influence on the electrolytic polishing can be avoided. The flow amount of the electrolytic polishing solution can be adjusted for the stainless steel tubes with different calibers and lengths; by the stepless speed regulation of a frequency converter, the revolution of a circulating pump can be regulated, thereby the stepless output of the flow of the electrolytic polishing solution can be carried out. A heating device, a cooling device and an insulation device are provided with a turnover box of the electrolytic polishing solution, the electrolytic polishing solution temperature can be timely adjusted to a reasonable treatment scope; a filtering device is provided in the turnover box, and the quality of the electrolytic polishing solution can be guaranteed; an inhalation device is provided at the upper part of the turnover box, and the gas generated during the processing is absorbed and conveyed into an exhaust-gas treatment apparatus. The electrolytic polishing solution is the environment-friendly type medicinal liquid, compared with a traditional electrolytic polishing solution, the electrolytic polishing solution provided by the invention has the advantages of less power consumption and energy preservation.

Description

technical field [0001] The invention relates to the technical field of stainless steel surface treatment, in particular to an electrolytic polishing fluid circulation device for electrolytic polishing of stainless steel inner tubes, wherein the electrolytic polishing fluid is in a flow mode. Background technique [0002] The existing electrolytic polishing of the stainless steel inner tube is to seal one end of the stainless steel tube, insert the electrode into the stainless steel tube, and then inject the electrolytic polishing liquid into the stainless steel tube, or put the stainless steel tube into the electrolytic cell, and add the auxiliary electrode into the stainless steel tube, Then power on and process. [0003] During the electropolishing process of the stainless steel tube, the electrode will generate gas, the electropolishing liquid in the stainless steel tube has a relatively high viscosity, and the space inside the tube is very small, so the generated gas can...

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Problems solved by technology

However, if the length of the stainless steel tube is longer and the diameter is smaller, it will be more difficult for the gas generated during the electrolytic polishing process to be discharged in time. At the same time, it is difficult to overcome the impact of the garbage generated by the electrolytic polishing. This drawback limits the electrolytic polishing process of the stainless steel tube. Especially for some stainless steel pipes with a caliber of millimeters, the inner diameter is too small to discharge the generated gas and garbage in time. If it is a 12-meter-long pipe, it will be even more difficult

[0007] 3. Low production efficiency: At present, the electrolytic polishing of stainless steel tubes is all done manually. Due to the addition of human factors, only one piece can be processed at a time, and after one piece is processed, its electrode must be disassembled and then Installed on another pipe to be processed, the production efficiency is low, and the labor intensity of the operator is high

Moreover, it is artificially processed, and the polishing quality of the same batch of stainless steel pipes will vary greatly, and the stability will be poor.

[0008] 4. It is difficult to control the parameters of electrolytic polishing: in order to achieve a good electrolytic polishing effect, the temperature of the electrolytic polishing solution injected into the stainless steel tube is generally controlled between 50°C and 60°C, but because there is less electrolytic polishing solution in the stainless steel tube, The temperature will rise rapidly during the processing, and the current value and voltage value of the electrolytic polishing solution will change due to the difference in temperature, and this change is difficult to control by other means

In this case, the quality of stainless steel pipes produced by electrolytic polishing in the same batch will also be different.

[0009] 5. Low degree of automation: the existing stainless steel inner tube electrolytic polishing equipment adopts manual operation due to the difficulty of design; this kind of working conditions is poor and labor-intensive, and it is impossible to realize automatic production at all

[0010] From the above analysis, it can be seen that the injection methods of the electropolishing liquid in the electropolishing of the existing stainless steel inner tubes all have "poor electropolishing effect, small range of machinable stainless steel tubes (diameter and length), low production efficiency, and difficult electropolishing parameters." Control, low degree of automation" and many other problems

Therefore, the quality of the existing domestic electrolytic polishing equipment for stainless steel tubes cannot reach the effect of imported stainless steel electrolytic polishing tubes.

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