发明名称 |
TIMEPIECE SPRING MADE OF AUSTENITIC STAINLESS STEEL |
摘要 |
The invention relates to a timepiece spring (1) made of austenitic stainless alloy, steel comprising a base consisting of iron and chromium. The thickness thereof is smaller than 0.20 mm. Said spring comprises by weight: chromium having a minimum value of 15% and a maximum value of 25 %; manganese having a minimum value of 5% and a maximum value of 25 %; nitrogen having a minimum value of 0.10% and a maximum value of 0.90%; carbon having a minimum value of 0.10% and a maximum value of 1.00 %; the total of the contents by weight of carbon and of nitrogen as a proportion of the total is 0.40% to 1.50%; the (C/N) ratio of the content by weight of carbon as a proportion of the total relative to that of nitrogen is 0.125 to 0.550; impurities and added metals outside of iron having a minimum value of 0% and a maximum value of 12.0%; and iron having a value rounding out the 100 %. The invention is used with a barrel spring. |
申请公布号 |
WO2014206582(A3) |
申请公布日期 |
2015.12.23 |
申请号 |
WO2014EP55858 |
申请日期 |
2014.03.24 |
申请人 |
NIVAROX-FAR S.A. |
发明人 |
CHARBON, CHRISTIAN;PLANKERT, GUIDO |
分类号 |
G04B1/14;C22C38/00;C22C38/18;C22C38/38;F16F1/02 |
主分类号 |
G04B1/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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