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Vacuum Sintering Furnace in MIM Industry

Compared with traditional process, MIM technology has the characteristics of high precision, uniform structure, excellent performance and high batch level. Globally, MIM technology has also been widely used in automotive, electronic products, medical devices, consumer goods and many other fields. However, there are obvious differences in the application structure of MIM around the world: MIM technology is mainly used in the electronics industry in Asian market, in North America market mainly used in medical devices and other fields, and in Europe it is more focused on the automobile and consumer goods industry.


An important factor for the cost-effective operation of vacuum sintering furnace is the economical process gas and power consumption. According to different gas types, these two major cost elements of sintering process can account for 50% of the total cost. In order to save gas consumption, it is necessary to implement an adjustable air partial pressure mode, while ensuring that the degreasing and sintering processes are free from pollution. In order to reduce power consumption, heat loss is reduced by manufacturing hot zones with optimized heating elements. In order to achieve these design points and control the cost of R&D in a reasonable range, a modern resource-saving vacuum sintering furnace will use hydrodynamic calculation tools to find the optimal flow and heat flow patterns.

Vacuum-Sintering-Furnace-in-MIM-Industry

Depending on the weight of the sintered parts and the residual polymer content, the binder will accumulate on the peripheral parts (e.g. exhaust pipes, pumps and hot zones) to varying degrees, which will lead to long downtime for manual cleaning and daily maintenance. If the material-nbsp, the net weight of material is 400 Kg (furnace capacity is 1000 L) and the content of binder is 3%~4%, then the polymer up to 15 Kg will be removed in the degassing stage. Even so, most of the exhaust gases (95% should be collected at specific condensation points (such as binder collectors or wax separators). Due to decontamination and manual cleaning, the door-to-door cycle time will increase by more than two hours. In this way, inefficient and poorly designed vacuum sintering furnace will reduce operating performance by 15%. MIM manufacturers will consider more advanced equipment with automatic recycling cleaning systems to reduce maintenance and minimize accidental failures.


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