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3. Expansion and welding When the temperature and pressure are high, and under the effects of thermal deformation, thermal shock, thermal corrosion and fluid pressure, the connection between the heat...

In the shell-and-tube heat exchanger, the heat exchange tube and the tube sheet are the only barrier between the tube side and the shell side of the heat exchanger. The connection structure and...

Since instant noodles use palm oil, the spiral plate has a uniform single channel with a high flow rate and a vortex state, so dirt is not easy to accumulate. If foreign matter settles somewhere, the...

According to different production methods, it can be divided into hot-rolled tubes, cold-rolled tubes, cold-drawn tubes, extruded tubes, etc. 1. Hot-rolled seamless pipes are generally produced on...