The extrusion temperature of industrial aluminum profiles is an important process parameter in the extrusion production process. In order to reduce the deformation resistance of the metal and reduce the extrusion pressure, it is necessary to increase the extrusion temperature of industrial aluminum profiles. However, when the extrusion temperature is raised to a certain temperature, it is easy to experience thermal embrittlement and produce defects such as cracks. To avoid this phenomenon and increase the extrusion speed, it is necessary to reduce the extrusion temperature. These two conditions are contradictory. In order to reduce deformation resistance and adopt a higher extrusion speed, it is necessary to choose a temperature range with good metal plasticity. Today, aluminum radiator manufacturer Zhaogong Technology will talk to you about the temperature changes during the extrusion process of industrial aluminum profiles, hoping to be helpful to everyone.

However, during the extrusion production process of industrial aluminum profiles, friction between the metal and the inner lining, mold, and gasket of the extrusion cylinder, as well as deformation of the metal itself, can cause the temperature of the metal to rise, often exceeding the pre selected extrusion temperature range. The experiment proves that the extrusion temperature gradually increases throughout the entire extrusion process, and the extrusion speed gradually increases with the decrease of ingot metal. Therefore, the tail end of industrial aluminum profile products often experiences cracks due to the increase of extrusion temperature and speed. The increase in extrusion temperature during the extrusion process is related to the nature and extrusion conditions of industrial aluminum profiles. For industrial aluminum profiles, the temperature difference between the metal before and after the mold outlet is between 10-60 ℃.

In order to keep the extrusion temperature constant within the temperature range with the best metal plasticity during the industrial aluminum profile extrusion production process, it is best to implement isothermal extrusion. This is a new process explored by engineering and technical personnel over the years. To achieve isothermal extrusion, there are many conditions that need to be met. During the extrusion process, each link can be automatically adjusted, such as the temperature of the ingot and the extrusion cylinder can be gradient heated, the mold can be cooled and the temperature can be adjusted, and the extrusion speed can be automatically changed or constant velocity extrusion can be used.

In addition, after replacing the mold, due to the change in extrusion coefficient, the above conditions can also be adjusted accordingly. It can be seen that achieving isothermal extrusion of industrial aluminum profiles is a very complex process. At present, gradient heating of the ingot is commonly used to achieve approximate isothermal extrusion, which can greatly improve the extrusion speed and product quality.

With the gradual deepening of the application of computer and digital programming technology in industry, modern extrusion machines have also been updated and upgraded, equipped with FI controlled constant velocity extrusion and TIPS controlled isothermal extrusion. As long as the operator selects the button and relies on the equipment's automated programming technology, they can obtain the required constant velocity extrusion or isothermal extrusion.

The above is the temperature changes during the extrusion process of industrial aluminum profiles compiled by Zhaogong Technology. Guangdong Zhaogong Technology Co., Ltd. is a professional enterprise that researches, produces, and sells various specifications of aluminum profiles, aluminum radiators, and aluminum parts. The products are widely used, including the lighting industry, industrial industry, decoration industry, automotive parts, daily necessities, furniture, etc.

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