Aluminum profile extrusion die for cooling in die

Abstract

An aluminum profile extrusion die for cooling in a die includes an upper die, a lower die, a tap hole, a welding room, a working tape and a profile outlet; the upper die and the lower die are installed in a matching mode, the upper end surface of the upper die is provided with the tap hole, the welding room is arranged below the tap hole, the working tape is arranged below the welding room to enable every material-flows to enter the working tape after being joined in the welding room and be subjected to extrusion forming, and the profile outlet which communicates with the working tape is manufactured at the bottom surface of the lower die; and the aluminum profile extrusion die for cooling in the die also includes a cooling pad which is used for the working tape. The cooling pad can directly and efficiently guide cooling medium to a high temperature position, nearby the working tape of the die, of the most violent metal deformation, cooling method of direct cooling superheat region ismore efficiently, and other cooling methods such as indirect cooling from outside of the die is prone to generating internal stress and crack due to cooling unevenness of the die.

Description

technical field [0001] The invention relates to an aluminum profile extrusion die and a cooling method for the aluminum profile extrusion production die, belonging to the field of mechanical molds. Background technique [0002] The process of extrusion of aluminum profiles is roughly that the aluminum ingot heated at high temperature, under the pressure of the extruder, enters the interior of the mold through the mold split hole, and several strands of metal meet in the welding chamber of the lower mold, and finally flow out from the working belt. Extruded into profiles. However, with the extrusion process of aluminum profiles, the continuous friction and deformation between the metal and the mold will generate a lot of heat, causing the extrusion outlet temperature to exceed the allowable temperature range, which will cause cracks and other defects in the metal product. [0003] In the process of extrusion of aluminum profiles, the temperature control of the mold and the m...

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Problems solved by technology

However, the purpose of this invention is mainly to avoid the generation of alumina particles on the surface of the extruded profile, and the die surface is not a detachable structure, especially the device does not cool the overheated area in the mold, and the profile near the working belt and the metal in the mold The temperature control ability is not strong, and the cooling effect is not good

[0009] Through search, the applicant found that the cooling methods in the prior art are all indirect cooling from the outside of the mold, which is likely to cause internal stress and cracks in the mold due to uneven cooling. In the prior art, no metal deformation directly near the working zone in the mold was found. A method and device for direct cooling of the most severe high-temperature parts, so that it is difficult to avoid defects in extruded products caused by excessive extrusion temperatures

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