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
- Andreev S.E. Crushing, grinding and screening of mineral / S.E.Andreev, V.V.Zverevich, V.A.Perov. Publisher. Moscow: 1966. 396 p.
- Gorbachevskiy V.V. Operation and maintenance of ball mill drum. Kiev, 1967. 40 p.
- Gulyaev A.P. Мetal science. Publisher. Moscow, 1986. 544 p.
- Davydov N.G. High-manganese steel. Publisher. Moscow, 1979. 176 p.
- Egerman U.F. Instructions for repair Coal rolling ball mill drum. Publisher. Moscow, 1963. 32 p.
- Kryukov D.K. Linings of ball mills. Publisher. Moscow, 1965. 184 p.
- Kudryavtsev I.V. The effect of curvature of surfaces come into contact at a depth of plastic deformation during hardening of surface hardening / I.V.Kudryavtsev, G.E.Petushkov // Increase the strength of machine parts by surface deformation: Materials II scientific conference. Perm, 1967. P.40-52.
- Manganese steel: Translated from English B.A.Belous / Edited by M.E.Blanter. Moscow, 1959. 94 p.
- Saverin M.M. Blaster work hardening. Publisher. Moscow, 1955. 312 p.
- Tkachev V.N. Methods of increasing durability of machine parts / V.N.Tkachev, B.M.Fishteyn, V.D.Vlasenko, V.A.Ulanov. Publisher: «Engineering», Moscow, 1971. 272 p.
- Shaposhnikov N.A. Mechanical testing of metals. Publisher. Moscow-Leningrad, 1954. 443 p.
Similar articles
Realibility increase of gas-transport systems objects with help of logical-and-probabilistic method
2012 S. P. Petrov, A. N. Makhalin, S. V. Baburin
Kholodninskoe deposit: development strategy, main engineering solutions, perspective exploration
2012 Vladimir S. Litvinenko, V. P. Zubov, O. V. Mikhailenko
Hot stability of surface-nanostructurized metals obtained by solid-state hydride synthesis
2012 A. G. Syrkov, L. A. Zhurenkova, O. A. Dulneva, V. F. Tufrikova