Aluminum extrusion die knowledge popularization

Aluminum extrusion die plays an important role in the aluminum extrusion process, and it is the basic tool to ensure that the product is formed and has the correct shape, size and accuracy.

In the process of use, in order to make better use of the extrusion die, we can use the appearance of the aluminum extrusion die, but we must carry out relevant checks, otherwise it will affect the performance of the aluminum extrusion, and in the process of use, you can pay attention to the six inspection points of the aluminum extrusion die.

1. The outer surface of the extrusion die for aluminum profiles should be the finished surface after heat treatment;

2, extrusion mold diversion hole and welding room should be smooth, smooth, no obvious convex and concave unequal defects, mold corner must;

3, the mold processing is smooth, smooth transition, do not allow sharp corners or uneven;

4, shunt hole, shunt bridge processing smooth;

5, the core of the mold and the lower mold hole of the hollow knife processing smooth;

6. Positioning pins and fastening bolts are fully installed.

Aluminum extrusion die design is different from the general mechanical design. It is a technological design between mechanical design and pressure processing. In addition to the principles that need to be followed in the design of ship machinery, it is also necessary to consider the various process factors under hot extrusion conditions, which is determined by many factors, including the aluminum extrusion mold designer's consideration of the factors, mold makers' consideration of the factors and extrusion producers.

From the aluminum extrusion mold designer. The structure of the extruder is the primary concern. Which type of extrusion machine is used to produce the juice mold, whether the profile can be extruded on the extrusion machine, whether the extrusion machine can extrude the required extrusion length, whether the shape, size and position tolerance required by the product can meet the requirements, the material, structure and dimensions of the chess pieces, the number of die holes, the size of the die holes, the tongue ratio and the extrusion ratio, As well as the various stresses and strains that are subjected to during extrusion, that is the problem that designers have to consider.

From the perspective of the mold maker, the size and processing of the mold: accuracy, processing accuracy of the work belt and surface roughness, these are the primary considerations. These requirements can be reached, will directly affect the quality of the mold, that is, will directly affect the quality of the product produced. There is also the strength of the mold, that is, the heat treatment, surface detection of carbon, decarbonization and surface hardness changes during processing.

From the perspective of the extrusion producer, the assembly and support of the industrial aluminum mold, the heating temperature of the casting pad, the mold and the extrusion sheet, the extrusion speed and the process lubrication, and the control and adjustment of the press are all issues to be considered by the extrusion producer.