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The difference between cold extrusion and hot extrusion in aluminium profile extruder

Update time:2020-01-15 14:29:40Number of clicks:0次
In the extruder, there is a kind of aluminum profile extruder. As the name implies, it is a kind of extruder used to produce aluminum profile. Therefore, it has this specific name. Then, since the article mentioned at the beginning, next, it is advisable to learn, understand and master the professional knowledge of this kind of extruder, so that it can be used correctly and reasonably, rather than wrongly.

West Aluminum - West Aluminum Industry Telecom: In the extruder, there is a kind of aluminum profile extruder. As the name implies, it is a kind of extruder used to produce aluminum profile. Therefore, it has this specific name. Then, since the article mentioned at the beginning, next, it is advisable to learn, understand and master the professional knowledge of this kind of extruder, so that it can be used correctly and reasonably, rather than wrongly.

What are the characteristics of metal flow in forward extrusion?

Principle of aluminum cold extrusion process: under normal temperature, according to the principle of plastic deformation, using the die installed on the press, applying pressure to the aluminum blank put into the die by the punch, making the blank produce plastic deformation at a certain speed, thus making the parts with the required shape, size and certain mechanical properties. Aluminum extrusion is a kind of processing method that the aluminum ingot is put into the extrusion cylinder, and the aluminum is extruded from the die hole of given shape and size by applying pressure to the aluminum through the extrusion shaft, resulting in plastic deformation and obtaining the required extrusion product. According to the different direction of metal flow, extrusion can be divided into forward extrusion, reverse extrusion and combined extrusion. In forward extrusion, the moving direction of extrusion axis is the same as that of extrusion metal, while in reverse extrusion, the moving direction of extrusion axis is opposite to that of extrusion metal. According to the heating temperature of ingot, extrusion can be divided into hot extrusion and cold extrusion. In hot extrusion, the ingot is heated above the recrystallization temperature for extrusion, while in cold extrusion, the ingot is extruded at room temperature.

In fact, the cold and hot pressing of aluminum profile extruder belong to forging, not extrusion. There is a certain difference between them?

However, the difference between cold extrusion and hot extrusion can be understood as the difference between cold extrusion and hot extrusion. Hot extrusion generally heats the material to a certain temperature or softens the workpiece to be extruded in the mold, which can reduce the extrusion pressure, but change the properties of the material; cold extrusion generally does not heat the material, and directly enters the mold for extrusion, which requires a lot of extrusion pressure, but basically does not Change the initial state of the material.


(Chongqing Xialu Xinda Aluminum Industry Co., Ltd. Publicity Department collates contributions)


Source: Network

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