What is the reason for poor metallography of sintered powder metallurgy products?

What is the reason for poor metallography of sintered powder metallurgy products?

With the development of all walks of life, powder metallurgy is more and more widely used in today's society. So what is the reason for the poor metallography of powder metallurgy sintered products? The following is the introduction of zhongwei precision editor.

1. Purity of raw powder

2. Particle size of additive

3. Alloying method of raw powder

4. Selection of lubricants

5. Mixing method

6. Pressing process (mold surface condition, dust, mold demagnetization)

7. Dewaxing time and filling rate of parts (cracking, bubble, Ni catalytic reaction)

8. Control of gas flow during dewaxing (residual lubricant)

9. Precipitation of impurities in furnace cavity (Mn, S, P)

The above is the sharing of the reasons for the poor phase of powder metallurgy sintered products. I hope this article will help you. If you want to know more about it, please pay attention to the official website of zhongwei Precision.