Electrochemical cutting machine works as follows: power cutting material connected to the positive DC power supply, the tool (disc) connected to the negative electrode, between the workpiece and the disc sprayed electrolyte, the workpiece surface anodic dissolution, and the formation of a layer Oxide film prevents complete metal contact of the workpiece and tool.
Rotating tools scraping the surface of the workpiece protruding oxide film, when the gap between the two poles shrink to a certain extent (the workpiece is slowly fed so that the gap between the poles always maintain a narrow gap 0.1-1, the electrolyte flow through the gap at high speed), oxidation The membrane is broken down and the bumps are eroded or dissolved.
When the voltage is high, the fumes purification plant to cut the main electric role, the lower the voltage to the electrochemical role. The tool is fed in the cutting direction until the cut is completed.
Electrochemical processing The reaction of drying ferrous sulfate with the electrolysis process is similar in principle, but more electric heating and mechanical scraping, the cutting speed faster, more efficient, and the current is relatively electrolytic processing is small.
Electrolytic processing equipment using voltage 6-12v, power expensive, large electrolytic equipment, manufacturing costs are high (usually several hundred thousand dollars); and electrochemical cutting machine current used in 10-50A, the voltage increased to 20 -30v, a significant reduction in power costs, reduced size, coupled with a reasonable electrolyte tank design, greatly reducing the overall size of electrochemical cutting machine.
Vertical long-shaft pump is a kind of Centrifugal Pump. From the perspective of centrifugal pump, it is based on the improvement of the performance of the submerged pump, making its performance much higher than that of the submerged pump, and its running stability is stronger. . Advanced and mature vertical long-shaft pump developed to meet domestic market demand. The pump can be used to transport clean water, rainwater, iron oxide water, sewage, corrosive industrial wastewater, seawater and other liquids below 55°C; after special design, it can transport liquids at 90°C. Widely used in water companies, sewage treatment plants, power plants, steel plants, mines and other industrial and mining enterprises, as well as municipal water supply and drainage, flood control and drainage projects.
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