Machine component and rolling bearing

Machine component and rolling bearing

  • CN 101,874,125 A
  • Filed: 11/21/2008
  • Published: 10/27/2010
  • Est. Priority Date: 11/27/2007
  • Status: Active Application
First Claim
Patent Images

1. component of machine (11,12,13,21,23,31,32,33,41,42,43,51,52,53), it is characterized in that, by containing the carbon below the 0.85 quality % more than the 0.77 quality %, 0.01 the following silicon of the above 0.25 quality % of quality %, 0.01 the following manganese of the above 0.35 quality % of quality %, 0.01 the following nickel of the above 0.15 quality % of quality %, 3.75 the following chromium of the above 4.25 quality % of quality %, the following molybdenum of the above 4.5 quality % of 4 quality %, 0.9 the following vanadium of the above 1.1 quality % of quality %, the surplus steel that is divided into iron and impurity formsFormed the nitrogen enriched layer (11B, 12B, 13B, 21B, 23B, 31B, 32B, 33B, 41B, 42B, 43B, 51B, 52B, 53B) more than the nitrogen concentration 0.05 quality % in the zone that comprises surface (11A, 12A, 13A, 21A, 23A, 31A, 32A, 33A, 41A, 42A, 43A, 51A, 52A, 53A)The carbon concentration in the described nitrogen enriched layer (11B, 12B, 13B, 21B, 23B, 31B, 32B, 33B, 41B, 42B, 43B, 51B, 52B, 53B) and the aggregate value of nitrogen concentration are below the above 1.9 quality % of 0.82 quality %.

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