Tungsten Carbide Bullet for Hydraulic Copper Tube Expanding Machine
The expansion of the copper pipe is based on the expansion force of the tungsten carbide expansion bullet, which causes the plastic deformation of the copper pipe, so that the work process of expansion of the outer wall of the copper pipe after the expansion is tight on the inner hole of the aluminum fin. the expansion of the pipe The strength is low, the bearing pressure is limited, and the range of use is also limited. But the expansion tube process is still widely used because of its simple operation and low cost.In the production of heat exchange equipment condensers and evaporators (coolers) in the refrigeration industry, the tube expansion process has been widely used.
Hydraulic tube expanders are mainly divided into portable tube expanders, vertical tube expanders, and horizontal tube expanders. Among them, the portable type is the most widely used because of its simple equipment and low investment. Although the vertical and horizontal types require a lot of investment, they have also been widely used in the production of heat exchange equipment with large batches and multiple tubes due to their high efficiency,.
Tungsten carbide tube expanding bullet is the important accessory of expansion tube process,which has been widely used in the production of heat exchangers and evaporators in the refrigeration industry.with the high hardness and excellent wear resistance,tungsten carbide bullet is always the trendy material for pipe expansion bullet,usually the bullet surface need be polished,Oston Carbide has been focusing on supplying various premium tungsten carbide bullet according to customer requirement. 
