Description of the 20mm medium chrome cast grinding balls for ball mill

1.Mechanical properties and metallurgical structure

2.Chemical components as follow

3.Picture of the dia 20mm medium chromium alloy steel ball for fine grinding

4.Holding furnace thermostatic pouring

5.Heat treatment tempered furnace

6.Japanese clients visiting Dongfang

7.Heat treatment

     Heat treatment is the key step of the whole  production process.In the R&D practice,Dongfang invents 

  Application Method for Warm Period Timing Quenching in Grinding Materials Heat Treatment and other skills.

  Machine oil is used to quench,making workpiece heated evenly,promoting the first formed carbide decompose

  once again and then forming uniformly distributed reticular carbides in the matrix.

    Due to the unique heat treatment process, grinding medias obtain the required hardness and metallurgical 

  structure,and the hardness difference from surface to core is less than 1.5 HRC.

Package

We usually choose to pack your order by bulk bag or metal pail, about 1ton per unit.

Shipment

  1.Usually we ship your order by sea.

  2.We'll tell you the shipping status once your order has been sent.

Payment

   30% advanced payment, 70% before loading. We accept T/T, L/C.etc.