Concerning the possibility of an effective hadfield's steel cold-work hardening in the working conditions of the lining of spherical mills
About authors
- 1 — student Saint Petersburg State Mining University
- 2 — Ph.D., Dr.Sci. professor Saint Petersburg State Mining University
- 3 — Ph.D. associate professor Saint Petersburg State Mining University
- 4 — Ph.D. associate professor Saint Petersburg State Mining University
Abstract
Taking a grinding of coal ball mill (type: BTM 400/800) operating without rocks as an example it is shown that a bombardment of the armour by grinding bodies made of steel 110G13L directly is capable to raise its hardness from 200 to 320HB at the depth of the cold-hardened layer up to 6,7 mm that will approximately 2 times increase its firmness to an abrasion. The time needed for the realization of an effective bombardment is 11 minutes, the period between strengthening cold – work hardenings is 25 days.
Область исследования:
(Archived) Mining electromechanics and mining equipment
References
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