Improvement of heat treatment regimes of cutters of road-headers for increase of their wear resistance
About authors
- 1 — G.V. Plekhanov Saint Petersburg Mining Institute
- 2 — G.V. Plekhanov Saint Petersburg Mining Institute
- 3 — G.V. Plekhanov Saint Petersburg Mining Institute
- 4 — G.V. Plekhanov Saint Petersburg Mining Institute
Abstract
The method is offered which allows to increase the wear resistance of bit bodies for continuous miners by means of their additional full hardening. This results in increasing the bit body hardness from 37-42 HRC up to 49-51 HRC, which must bring to increasing in wear resistance approximately of 25 %. The suggestion has been tested with a batch of bits spec. RKS-2 (РКС-2) in the mines of Vorkuta and have demonstrated an increasing in wear resistance compared with that of the bits which had not been exposed to an additional hardening.
References
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- Марочник сталей и сплавов / Под ред. В.Г.Сорокина. М.: Машиностроение, 1989.
- Сердитов А.Е. Разработка и исследование литых износостойких сталей, работающих в условиях Севера и Сибири / А.Е.Сердитов, В.В.Лебедев, Ю.П.Солнцев // Проблемы ресурса и безопасной эксплуатации материалов. СПб, 2005. С.146-151.
- Тененбаум М.М. Износостойкость деталей и долговечность горных машин. М.: ГНТИЛ, 1960. 246 с.
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