Medium carbon bearing steel for robot harmonic speed reducer flexible gear and production method of medium carbon bearing steel
The invention relates to medium-carbon bearing steel for a robot harmonic reducer flexible gear and a production method thereof. The medium-carbon bearing steel comprises the following chemical components: 0.36-0.43% of C, 0.15-0.35% of Si, 0.60-0.90% of Mn, 0.60-1.00% of Cr, less than or equal to 0...
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Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to medium-carbon bearing steel for a robot harmonic reducer flexible gear and a production method thereof. The medium-carbon bearing steel comprises the following chemical components: 0.36-0.43% of C, 0.15-0.35% of Si, 0.60-0.90% of Mn, 0.60-1.00% of Cr, less than or equal to 0.015% of S, less than or equal to 0.025% of P, 1.60-2.00% of Ni, less than or equal to 0.25% of Cu, 0.15-0.35% of Mo, less than or equal to 0.0010% of Ca, less than or equal to 0.003% of Ti, less than or equal to 0.0010% of O, less than or equal to 0.01% of As, less than or equal to 0.015% of Sn, less than or equal to 0.005% of Sb and the balance of Fe and inevitable impurities. The production process comprises the steps of molten iron pretreatment, converter smelting, LF refining, RH refining, large-section CCM continuous casting billet, continuous casting billet slow cooling, continuous rolling, rolled material slow cooling, softening annealing and finishing, and the steel has high mechanical property, high purit |
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