Mold processing center

In the production process of aluminum profiles, mold technology is the core technology of the aluminum profile extrusion processing industry. The rationality of mold design directly affects the extrusion production cost, production efficiency and product delivery cycle. A well-designed mold can often produce qualified products once on the machine, while a mold with a defective design often needs to be corrected through multiple mold repairs. There are even many molds that are still unqualified even after multiple mold repairs. Therefore, our company attaches great importance to molds and has established a mold research and processing center. The equipment uses the world's advanced mold processing equipment. We have introduced Japan's Mazak gantry milling machine, Germany's DMG CNC machining center, Japan's Sodick wire cutting, EDM machine tools, German Yan grinding machines, German Ipsen vacuum nitriding furnaces, etc., which can produce high-precision molds with different sections, fully meeting the production and market needs of aluminum extrusion. Our company develops and controls the production design of molds from the following six aspects.

Die structure: Extrusion dies are mainly composed of flat dies and diverter dies. Flat dies are relatively simple, while diverter dies are composed of upper and lower dies. When designing, it is necessary to pay attention to basic elements such as air cutter, die specifications, and positioning holes.

Diverter hole and mold core: The design of diverter hole and mold core is the core part of the mold. The shape of diverter hole determines the design of welding chamber, while the shape of mold core is determined by the section of profile. Our company has taken the lead in the design of these two parts in the industry.

Welding chamber and working belt: The design of the welding chamber is usually based on the shape of the diversion hole, while the design of the working belt directly affects the use effect of the mold. Ensuring that these two parts are designed reasonably can greatly improve the service life of the mold.

Processing quality and use conditions: After the design is completed, basic requirements for the processing quality and use conditions of the mold need to be put forward. This includes the testing of tool and mold materials, hardness requirements, manufacturing accuracy, surface roughness, and geometric accuracy.

Material selection: The selection of tooling material is crucial. The material needs to pass ultrasonic testing and component analysis before it can be used. The hardness value is usually between HRC45 and 52, depending on the size of the mold.

Surface treatment: The surface treatment of the mold should reach below Ra1.6 for the mating surface, Ra0.8-0.4 for the working belt surface, and nitriding or other surface heat treatment should be performed to improve the wear resistance and service life of the mold.

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