In the past, we mentioned more maintenance knowledge about the extrusion rod of aluminum profile extrusion press machine plant line, as if we didn’t mention the extrusion rod. In fact, this is an important part of the extruder, and its main function is to transmit pressure. In fact, it’s not easy to break down, so we mentioned less, but we still need to take time to learn its knowledge points, so that we can use it in the future.
1、 Why does the rod of aluminum profile extrusion press machine plant line always break?
The main function of the extrusion rod of the aluminum profile extrusion press machine plant line is to transmit pressure. If the central pressure rod is often broken, it will not only cause economic losses, but also affect production and delay delivery. The fracture of the central rod of the extruder will cause the equipment operation rate to reach only about 85%, which is the same in the industry. At present, we are trying to solve this problem in many ways and strive for the equipment operation rate to reach more than 98%. Therefore, in the extrusion tool of aluminum profile extrusion press machine plant line, the extrusion rod is also a very important part. The main reason for the rod of aluminum profile extrusion press machine plant line always breaking is that the center is not well connected during installation and commissioning. How to install and debug correctly?
2、 How to install the extrusion rod of aluminum profile extrusion press machine plant line?
The outer diameter of the extrusion rod is determined according to the inner diameter of the extrusion barrel. The outer diameter of the extrusion rod of the horizontal extruder is generally larger than that of the horizontal extruder. The inner diameter of the cylinder is 4 ~ 10mm smaller. When the extrusion rod works at high temperature, its end may be upset due to plastic deformation. Therefore, the diameter of the end of the solid extrusion rod should be smaller, while the inner diameter of the end of the hollow extrusion rod should be larger, so as to avoid being unable to put in when replacing the large perforation needle after deformation. In order to avoid stress concentration, the transition part of the root of the extrusion rod should be made into a cone with a large fillet, and its radius is R ≥ 100mm. The extrusion rod will break if the arc is too small or the root does not match the diameter of the rod body well.
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