Vertical tube expander is widely used in our daily life. The main part of the equipment is the tube expander. In order to effectively ensure the normal operation of the equipment and avoid failure, we should regularly maintain it, which can determine the advantages and disadvantages of later expansion.
The working principle of vertical tube expander is to use pneumatic high-pressure pump to pressurize and generate pressure. The pressure acts on the inner wall of the heat exchange tube through the expansion head, and the heat exchange tube and tube sheet expand in the tube sheet hole, so as to achieve the purpose of tube expansion.
The main parts of the expander on the tube expander have been heat treated and have high hardness. In order to avoid the first failure in the process of use, the pipe should be placed in a straight position when using, and the force should be even in the work, so as not to cause the fracture of the expanding rod and the expanding bead. In the process of tube expansion, the friction heat of the pipe will change the mechanical properties. Therefore, it should be used alternately during the expansion process, and lubricating oil should be added to the tube expander to prolong the service life of the equipment.
With the continuous progress of science and technology, now the tube expander is equipped with the function of setting expansion force. If the set value is reached during the expansion process, it will automatically expand, which is safe and reliable. If the equipment is not used for a long time, the expander should be cleaned, coated with engine oil and stored in a dry place. Avoid damp and rust.
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