Aluminum extrusion machine has good adaptability
Aluminum extrusion machine is mainly used to produce copper and copper alloy pipe, bar, profile and wire extruder. According to its transmission mode, it can be divided into mechanical transmission mode and hydraulic transmission mode. Mechanical drive extruder is vulnerable to impact when the load changes. They are not sensitive to the adjustment of extrusion speed. Its overload protection ability is small and it is difficult to be applied in large scale. It is generally used for small tonnage high speed cold extrusion, but it is rarely used at present. The hydraulic drive extruder runs smoothly, has good adaptability to overload, and the extrusion speed is easy to adjust. It is suitable for extrusion of various pipe, rod, profile and wire products. At present, it has been widely used.
There is no relative sliding between billet and extrusion cylinder when pouring aluminum extrusion press. The metal flow is concentrated near the die hole and the deformation is uniform. The eccentricity of backward extrusion is better than that of forward extrusion. Extrusion has low energy consumption, low residual pressure and high yield. However, the operation of backward extrusion is more complex, the gap time is longer than that of forward extrusion, the quality stability of extruded products needs to be further improved, and the backward extrusion process needs to be further improved. Aluminum has the characteristics of strong controllability, flexible production and convenient maintenance and transformation of tools and moulds.
The working efficiency of aluminum extrusion press is closely related to its service life and installation sequence. The equipment foundation of aluminum extrusion press can not only bear the weight of the equipment itself and the weight of raw materials, but also bear the dynamic load of the extruder. Therefore, the aluminum profile extruder must be installed according to the corresponding installation procedures. The foundation pit shall be excavated according to the specification of the equipment, and the trench of the electric circuit, water supply and drainage pipeline and compressed air pipeline shall be excavated at the same time. Extruder bolt hole size, fixed foot hole wood mold. The wood grain of the bottom hole should be trapezoidal or conical. For the first time, irrigate the foundation and leave the toes. On the basis of straw bags, after 24 hours, twice a day, drinking water is hygienic. During cement-based curing, the ambient temperature should be above 5 ℃.
