Why does powder metallurgy process need vacuum?

Dec 12, 2022

Why does powder metallurgy process need vacuum?



Careful partners will find that powder metallurgy requires vacuum treatment during processing. In fact, this process is an important link in oil bearing and also a very practical process. So why does powder metallurgy need vacuum treatment? Next, zhongwei will explain the reasons:


powder metallurgy


Cause 1: Make up for the small holes left after sintering

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Powder metallurgy molding process will be selected for small bearings in many fields. After sintering process, small bearings will leave many small holes. Vacuum treatment is to use an oil immersion machine to fill special insulating oil bodies into the small holes of bearings through vacuum.


Reason 2: Vacuum oil immersion treatment can improve product performance


Vacuum oil immersion can quickly and evenly fill the insulating oil into the small bearing holes, and can make the surface of the bearing more smooth, improve the insulation performance, reduce the power consumption of the bearing, reduce the noise of the product in use and control the temperature rise, improve the product performance and improve the service life of the product.


The powder metallurgy vacuum oil immersion machine has a very good performance improvement effect on some small high-precision parts, making the product surface more smooth, reducing friction loss and noise between products. Compared with the traditional immersion treatment, it has greatly shortened the time. It not only improves the efficiency of product batch production, but also has a significant effect on product performance improvement, reducing production time and cost.


The above is the reason why the powder metallurgy process needs vacuum treatment. I hope that we can have a comprehensive understanding of the powder metallurgy process