In mining industry, to transform stone in dust is neccesary to use steel grinding balls in mill equipment. I need an standard and/or procedure to make the volumetric hardness testing in forging balls?
Use standard Rockwell or Brinell with roundness correction chart.
Grinding steel balls for ball mills. Specifications...see 9.3 GOST 7524-2015
citation"...volumetric hardness is determined in two mutually perpendicular directions on templete, cut from a ball - see section 9.3.2.1 formula 1"
http://energosteel.com/wp-content/uploads/2015/04/GOST-7524-2015.pdf
English links
http://energosteel.com/en/the-correct-definition-5-th-hardness-group-of-grinding-balls/
http://www.altinbilya.com.tr/eng/images/hesap.pdf
Thank you so much Mikhail.
https://www.researchgate.net/publication/318038784_Reclamation_of_Mine_Regions_at_Bisgod_Approaches_and_Challenges
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