Important processing technology for mold accessories

In addition to requiring sufficient strength and toughness, the surface performance of mold accessories is crucial for their working performance and service life

The production process of mold accessories

The actual effects of these properties are the main focus, and relying solely on the improvement and enhancement of the matrix material is very limited and uneconomical. However, through surface treatment technology, it is often possible to achieve twice the result with half the effort, which is also the reason why surface treatment technology has been deeply developed.

. Mold polishing technology is an important component of mold surface engineering and an important post-processing process in mold manufacturing

It is worth noting that the surface polishing of the mold is not only influenced by the polishing equipment and process technology, but also by the mirror degree of the mold material. This has not yet received sufficient attention, which means that the polishing itself is constrained by the mold material. Although new treatment technologies aimed at improving the surface performance of mold parts are constantly emerging, the main applications in mold parts manufacturing are nitriding, carburizing, and hardened film deposition

Due to the fact that nitriding technology can form surfaces with excellent performance, and the nitriding process is well coordinated with the quenching process of mold accessory steel, and the nitriding temperature is low, there is no need for intense cooling after nitriding, and the deformation of mold accessories is small. Therefore, the surface innovation service of mold accessories adopts nitriding technology earlier and is widely used

The material of mirror mold is not only a matter of chemical composition, but more importantly, a series of excellent processes such as vacuum degassing, argon protection of ingots, vertical continuous casting and rolling, and soft forging are required during smelting, so that the mirror mold steel has a series of advantages such as less internal defects, fine impurity particle size, good dispersion, fine metallic grain size, and good uniformity, in order to meet the requirements of polishing to mirror mold steel. The surface treatment technology of mold accessories is a systematic engineering process that changes the surface morphology, chemical composition, organizational structure, and stress state of mold accessories through surface coating, surface modification, or composite treatment technology to obtain the required surface performance

The nitriding process includes gas nitriding, ion nitriding, liquid nitriding, and other methods. In each nitriding method, there are several nitriding techniques that can adapt to the requirements of different steel grades and workpieces. From the perspective of surface treatment methods, it can be further divided into chemical methods, physical methods, physicochemical methods, and mechanical methods