Industrialization of MIM Technology

With the industrialization of MIM technology, the general production equipment of traditional powder metallurgy and injection industry and all kinds of special metal injection molding: industrial production equipment has been widely used in the industrial production of metal injection molding. The improvement of industrial production efficiency and equipment automation, processing continuity and equipment performance has promoted the industrialization of metal injection molding. The overall development of MIM industry needs to increase production efficiency through production equipment. Correctly selecting and mastering all kinds of equipment in the MIM production process can improve the quality, output and labor productivity of the products, and accelerate the development of industrialization.

At present, the mixing process mainly adopts the traditional double planet mixer, single screw extruder, piston extruder, twin screw extruder, eccentric wheel mixer, Z impeller mixer and so on, which can ensure the uniformity and high efficiency of the mixture. The injection process can also draw on the traditional injection equipment, such as double loop injection molding machine, double template injection machine, non pull rod injection machine, automatic injection machine, electromagnetic dynamic injection molding machine and so on, which can meet the technical requirements of filling better.


As for degreasing, degreasing is a field that has never been involved in the related industry before. The principle is that, on the premise of ensuring the non deformation of the parts obtained from the injection molding, the principle that various components in the bonding agent are constantly changing with the physical and chemical changes with the increase of temperature are gradually changed into gaseous or liquid substances. The injection molding blank is left to achieve the purpose of removing the binder. Therefore, the status of the process in the entire MIM technology is particularly special and important.

The parts after degreasing are almost without any strength, and a little vibration may cause parts to be damaged. At the same time, the energy waste caused by repeated heating of parts can be reduced in the stage of degreasing and sintering, and the traditional processes such as degreasing, sintering and heat treatment are integrated into a comprehensive process, which can reduce the uncertain factors in production, improve the quality of molding parts, and greatly improve the production efficiency.

The concept of continuous sintering equipment was born after the comprehensive process was proposed. In order to prevent our country from losing in the fierce competition and taking the leading position in the international industry, it is necessary to actively develop MIM technology, especially the integration and synthesis of the traditional single technology, in order to form an effective comprehensive technology and not develop the comprehensive art as soon as possible.