Copper tube processing requirements
First of all, the steel pipe must not be cracked, twisted or out of round deformation before processing, and it has been marked with defects before leaving the factory. Before processing, the inner surface must be clean, free of water and oil. Secondly, the pipeline is processed according to the design drawings, so the processing shape and size of the copper pipe should meet the requirements, and the diameter change at the fracture must be controlled within 2% of the standard diameter of the steel pipe. In addition, there should be no flash and burr at the fracture. The pipe fittings themselves must also be degreased, and the inner and outer surfaces should be clean. Because steel pipe processing is a meticulous work, the error control and the accuracy of the workpiece are very high. If it is necessary to weld between copper tubes, the welding process must be protected by nitrogen filling.
? Treatment of copper tube after processing
The copper tube products we see in the market are all perfect finished products. Before leaving the factory, some details will be dealt with, such as blanking and deburring of copper tubes, and sometimes copper tubes will be bent in order to produce a certain shape. In the process of blanking and deburring, tools such as copper pipe edger, pipe cutter and effective ruler will be used. In the process of operation, the steel pipe is positioned and fixed first, and then taken out with a cutter. In the process of cutting, the copper tube must be fed evenly, so that the incision can be uniform and not deformed. In order to make the nozzle smooth, after blanking, a copper tube edger should be used to deburr, and 0.3~0.5Mpa dry compressed air should be used to remove impurities on the inner and outer surfaces.
Manufacture of bell mouth of copper tube
First, make a matching copper socket for the copper tube that meets the standard, then put it into the special tool for expanding the bell mouth of the copper tube, clamp the fixture, coat some air-conditioning refrigeration oil on the tip of the expander, then tighten it clockwise for three quarters of a turn, then retreat for a quarter of a turn, and so on until the expansion reaches the standard. After the bell mouth is formed, the contact surface of the bell mouth should be smooth, flat and uniform in thickness, and there should be no obvious cracks and dislocation defects.
After my introduction, I wonder if you know the steps of copper tube processing. All mechanical manufacturing is coarse and fine, and copper tube processing technology will also be applied to the production of axle wheels, so the accuracy is very high. If you want to better understand and master copper tube processing, you must actually operate it!
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