Good Performance of Grinding Cylpebs As Grinding Medias In The Ball Mills

DELHI, India - May 9, 2015 - PRLog -- 1.What Is The Specifications Of The Cast Grinding Bar ?

Our Regular cast grinding ball diameter from 8*10mm-35*45mm, chrome content from 1%-23% as customer required,hardness from 42HRC-62HRC accordingly ,it always used in the last space of mills.

2.What Is The Application Of The Cast Grinding Bars?

Our products widely used as the grinding media in pulverizing ball mill machine in cement plant,power station and various kinds of gold mine and iron mine industry.it is enjoyed a good reputation both in domestic market and foreign markets.

3.What Is The Raw Materials Of The Cast Grinding Bars ?

The raw material including high quality ferro chrome,high quality steel, high quality various kinds of irons likeC, Mn,Si,Cu, etc should be melted in induction furnace with a temperature of 1400℃,then put the melting liquid into the ball molds or automatic production line.

4.What Is The Heat Treatment Of The Cast Grinding Bars ?

Hardening :Heat slowly to a temperature of 900°C-1050°C , quenching them in oil about 10 minutes and then let balls followed by air to 250-350°C；Tempering:Put the quenched balls in the section size furnace, heat slowly to a temperature 600°C,  followed by air 4 hours to 200°C at last .

5.What Is The Bars Surface Finishing And Inspections Before Packing?

All casting bars will be properly fettled,tumbled and dressed,all surface shall be thoroughly cleaned .

5.1.Sand and Slag inclusion will not existed;

5.2.Depth of defect is more than 2mm will not existed;

5.3.The hardness will be measured on 5 balls selected at random from each heat treatment batch;

5.4.One ball at least will be selected randomly from each heat treatment batch for micro-examination;

6.Packing And Loading Of The Cast Grinding Bars:

We load the balls In hardened and tempered condition after inspection,in normal condition,we packaged by standard container bag,1 ton/bag ,and also packaged by the iron drums, 1 ton /drum, in 1*20GP,we usually can load 25 tons, that means 25 Bags .Some of the destination port have weight limited, 1*20GP about 21 tons only, then, we only can load 21 Bags.


Besides the grinding cylpebs, we also have casting steel ball and forged steel ball products ,further information please kindly check our website www.bjnm.en.alibaba.com and www.bjsteelball.com ,Thanks !