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Changsha Deco Equipment Co.,Ltd

Con:Sandy Qiao

Add:Hunan Yueyang City Yueyang Tower No.29 Dongchong Road, Qijialing Street, Xueyuan Road

Tel:+86-731-85212256

Fax:+86-731-85212256

Mob:+8613975017886

Email:sandy@deco-mill.com

Web:www.deco-ballmill.com

Knowledge

In planetary ball mill, why the powder sticks to the balls and inner wall of jars after grinding?

In planetary ball mill, why the powder sticks to the balls and inner wall of jars after grinding?


The metallic powders deforms during grinding because of cold work deformation and residual stresses especially when the surface area is high( Nano sized powders). And temperature inside the jar will arise causing powder to stick on the surface of the balls and the inner wall. So we can try to:


  1. To reduce the volume percent of the powder.( ductile metals like Cu tends to deform more than brittle metals)

  2. To choose a suitable running program during grinding, like running for 10mins and off for 10mins to reduce the temperature

  3. To try wet grinding

  4. To try the 360 degree lab planetary ball mill.

360 degree planetary ball mill