Sealing method of powder metallurgy parts

Sealing method of powder metallurgy parts

Many people want to know the sealing method of powder metallurgy parts. When some precision parts are processed by powder metallurgy, a small amount of gas residue will be produced, which will cause many small voids and cracks in the parts. Therefore, it will be treated in time to seal the pores and improve the performance of the parts. This requires the powder metallurgy sealing technology. Now let's look at the sealing methods of powder metallurgy parts.

Method 1: Heat the powder metallurgy parts to 200 ℃, and then quickly soak them in the carbon tetrachloride meat solution of organic silicide, ensure that each part is soaked, and then take them out and dry them at 200 ℃. This method can form a film to prevent the penetration of electroplating solution, which can play an effective sealing effect.

Method 2: Heat the powder metallurgy parts to 200 ℃, and then soak them in zinc stearate. Through soaking, the liquid can penetrate into the powder metallurgy parts, and then dry and solidify them. Finally, clean the surface and conduct electroplating, which can also effectively seal the holes.

Method 3: Steam treatment of powder metallurgy parts to form a layer of oxide film on the part surface can effectively seal the parts.

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.