Sealing method of powder metallurgy parts

Sealing method of powder metallurgy parts

Sealing method for powder metallurgy parts. When some precision parts are produced and processed by powder metallurgy pressing process, there will be a small amount of gas residue, resulting in many small pores and cracks in the parts. Therefore, it is necessary to deal with them in time, seal the pores and improve the performance of the parts, which requires powder metallurgy sealing technology. Let's take a look.

Method 1: Heat the powder metallurgy parts to 200 ℃, and then quickly soak them in the organosilicon tetrachloride meat solution to ensure that each part is soaked, and then dry them at 200 ℃. The method can form a film to prevent electroplating penetration and has effective sealing effect.

powder metallurgy

Method 2: Heat the powder metallurgy parts to 200 degrees, and then soak them in zinc stearate. After immersion, the liquid can penetrate into the powder metallurgy parts, then dry and solidify, finally clean the surface, electroplating, and effectively seal the holes.

Method 3: steam treatment of powder metallurgy parts to form oxide film on the surface of parts, which can effectively seal holes.

The method of sealing holes for powder metallurgy parts has been told to you. If you need to know about powder metallurgy, you can come to zhongwei for precise consultation. We have professional personnel to answer you.