CY-2000 portable electrolytic polishing instrument

CY-2000 portable electrolytic polishing corrosion meter is used for on-site metallographic inspection. During the inspection, there is no need to move the workpiece, no need to cut and sample, and electrolytic polishing and corrosion are directly on the workpiece. It is an effective tool for non-destructive testing of metallographic structure.

CY-2000 portable electrolytic polishing corrosion meter is suitable for metallographic inspection of large and undestructible products, such as safety inspection, quality supervision, metallographic inspection and failure analysis in petrochemical industry, railway shipbuilding, power plant, power station, equipment installation, large abrasive tools and other industries. Quality control, inspection and failure analysis are particularly important for power plants, chemical plants, offshore platforms and other applications.

Product characteristics:

1. Automatic electrolyte circulation system, electrolyte flow rate can be adjusted, excess electrolyte, reflux collection;

2. The electrolytic medium flows uniformly on the surface of the corroded workpiece to ensure the long-term consistency of the corrosion depth;

3. Automatic control of polishing/corrosion working time;

4. Control the polishing/etching area of the sample (the area can be customized);

5. The corrosion head in contact with the workpiece can be customized so that the electrode rod matches the surface shape of different samples of different workpieces;

6. The magnetic anode ensures that the anode and the workpiece are automatically and closely connected;

7. Large range of voltage and current, DC 0~60V / 0~5A, other current/voltage values can be customized, which can meet the polishing and corrosion of various materials at the same time;

8. To achieve constant current, constant voltage working mode

9. Accurate and stable voltage value, accuracy: 0.01V

10. Accurate and stable current value, current accuracy: 0.001A

11. Real-time display of working voltage, working current, corrosion solution temperature changes with time and other three curves

12. According to the characteristics of different materials, 10 groups of polishing corrosion process parameters can be stored

13. The use of high-capacity lithium power battery, normal operation, no need to charge, working time more than 16 hours. With 220V AC output, it can supply power for other grinding and polishing equipment, metallographic microscope and other equipment used in the field;

14. Built-in electrolyte, anhydrous alcohol container

Contact information:

If you are interested in our products, please contact us for more information and a quote.

Phone：+86 136 6380 8508

Email：jason@cysitech.com

Sales manger：Jason.Zhang

WhatsApp:+86 150 3827 2566

Wechat：cykytech

Technical parameters:

Application case:

Stainless steel sample handling

Experimental purpose

The surface of stainless steel samples is treated by electrolytic polishing instrument to remove surface scratches, oxide layer and other defects, and obtain a smooth, mirror-like surface for subsequent microstructure analysis or improvement of material surface properties.

Experimental equipment and materials:

Electrolytic polishing instrument 2. Stainless steel sample 3. Electrolyte (according to the stainless steel material to choose the appropriate formula, such as phosphoric acid + sulfuric acid + water mixed solution) 4. Dc power supply 5. Electrolyzer 6. Tweezers 7. Anhydrous ethanol 8. Hair dryer

Experimental procedure

Sample pretreatment

1. Use sandpaper to grind the surface of the stainless steel sample step by step. Start with coarse sandpaper (such as 200 mesh), and then replace with finer sandpaper (400 mesh, 800 mesh, 1200 mesh), each sandpaper should be polished 90° from the previous step to ensure that the scratches are evenly distributed and gradually refined until the scratch on the sample surface is difficult to detect by the naked eye. 2. The polished sample is ultrasonic cleaned in anhydrous ethanol for 5 minutes to remove the impurities attached to the surface, and then dry with a hair dryer.

Electrolytic polishing operation

1. According to the selected electrolyte formula, accurately configure the appropriate amount of electrolyte and pour it into the electrolytic cell to ensure that the depth of the electrolyte can completely immerse the sample surface to be polished. 2. Install the anode and cathode of the electrolytic polisher in the corresponding positions of the electrolyzer, and connect the DC power supply. Ensure that the connection line is stable and there is no risk of short circuit. 3. Use tweezers to pick up the pre-treated stainless steel sample, so that the surface to be polished is vertically immersed in the electrolyte, and the sample immersion depth is about 3 cm. The sample acts as the anode and is connected to the positive electrode of the DC power supply, and the cathode is connected to the negative electrode. 4. Start the DC power supply and slowly adjust the voltage to the preset value. Meanwhile, start the timer. In the process of electrolytic polishing, the surface changes of the sample are observed, and it will be found that the surface gradually becomes bright and a small number of bubbles are generated. 5. As the polishing progresses, adjust the voltage and time according to the surface condition of the sample. If it is found that there is local corrosion on the surface or the polishing effect is poor, the voltage can be slightly reduced or the polishing time can be shortened; If the surface is still not bright enough, the voltage can be appropriately increased or the time can be extended within the safe range. The general polishing time is controlled within 10 minutes.

Postprocessing

1. After reaching the predetermined polishing time, quickly turn off the DC power supply, remove the sample from the electrolyte with tweezers, and immediately soak it in anhydrous ethanol to terminate the electrolytic reaction and clean the residual electrolyte on the surface of the sample. 2. Ultrasonic cleaning of the sample in anhydrous ethanol for 3-5 minutes to further remove impurities and electrolyte traces that may remain on the surface. 3. Finally, dry the sample with a hair dryer to obtain the electrolytically polished stainless steel sample, whose surface should show a smooth, mirrle-like effect, which can be used for subsequent detection and analysis, such as metallographic microscope observation of microstructure, hardness testing, etc.

Matters needing attention

1. Harmful gases will be produced in the electrolytic polishing process, which should be operated in a well-ventilated environment, and a fume hood can be used if necessary. 2. The electrolyte is corrosive. Wear protective equipment such as protective gloves and goggles to prevent the electrolyte from touching your skin and eyes. In case of contact, rinse immediately with plenty of water and seek medical attention according to the situation. 3. The regulation of voltage and current should be carried out slowly to prevent the sample from overheating or other abnormal conditions caused by excessive current. 4. After the end of the experiment, clean the electrolytic cell and electrode in time, properly dispose of the electrolyte, and avoid environmental pollution.