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
Analysis of Russian and international practice of accounting the environmental factors
2012 E. N. Bykova, Yu. I. Sapozhnikova
Mechanisation of extraction of peat from undrained deposit
2012 A. V. Mikhailov, E. A. Kremcheev, D. O. Nagornov
Voltage controlling device in electric networks of the enterprises of the raw complex
2012 B. N. Abramovich, A. P. Shevchuk, D. M. Tarasov