中科微点-全球专利检索

  1. Login
  2. Sign Up
Invention Grant
US09359661B2 Bearing steel material with excellent rolling fatigue property and bearing part 有权
轴承钢材料具有优良的滚动疲劳性能和轴承部件

Bearing steel material with excellent rolling fatigue property and bearing part
Abstract:
A bearing steel material which contains 0.8-1.1 mass % C, 0.15-0.8 mass % Si, 0.1-1.0 mass % Mn, 1.3-1.8 mass % Cr, up to 0.05 mass % P (0 mass % is excluded), up to 0.015 mass % S (0 mass % excluded), 0.0002-0.005 mass % Al, 0.0002-0.0020 mass % Ca, 0.0005-0.010 mass % Ti, up to 0.0080 mass % N (0 mass % is excluded), and up to 0.0025 mass % O (0 mass % is excluded). The steel material contains oxide inclusions which have an average composition that comprises, in terms of mass %, 20-50% CaO, 20-50% Al2O3, 20-70% SiO2, and 3-10% TiO2.
Abstract(Chinese):

含有0.8-1.1质量％C，0.15-0.8质量％Si，0.1-1.0质量％Mn，1.3-1.8质量％Cr，至多0.05质量％P（0质量％除外）的轴承钢材料，直到 0.015质量％S（不包括0质量％），0.0002-0.005质量％Al，0.0002-0.0020质量％Ca，0.0005-0.010质量％Ti，至多0.0080质量％N（不包括0质量％），高达0.0025 质量％O（不包括0质量％）。 钢材含有氧化物夹杂物，其平均组成按质量％计含20-50％CaO，20-50％Al2O3，20-70％SiO2和3-10％TiO2。

Public/Granted literature
Information query
Espacenet
Patent Agency Ranking
0/0