| 发明名称 | Measuring element made of steel with hardened edge zone | ||
| 摘要 | A steel measuring element is provided. The steel measuring element is made of an austenitic chromium-nickel steel with a low carbon and nitrogen content for measuring pressure, with an edge zone being provided with increased hardness. | ||
| 申请公布号 | US9562838(B2) | 申请公布日期 | 2017.02.07 |
| 申请号 | US201414221167 | 申请日期 | 2014.03.20 |
| 申请人 | WIKA ALEXANDER WIEGAND SE & CO. KG | 发明人 | Bloecher Rolf;Kaufmann Rolf;Hawlik Armin |
| 分类号 | C21D9/08;G01N3/48;G01N33/20;G01L7/04;G01L7/02;G01L7/00;G01L7/06;G01L19/10 | 主分类号 | C21D9/08 |
| 代理机构 | Miles & Stockbridge PC | 代理人 | Miles & Stockbridge PC |
| 主权项 | 1. A steel measuring element, having a material edge zone, that deforms when subjected to alternating bending actions induced by alternating pressure loads, wherein the steel measuring element is made of a non-precipitation-hardenable austenitic chromium-nickel steel, the material edge zone is provided with increased strength, the hardness of the material edge zone has a Vickers hardness of at least 500 or 1.5 to 2 times the initial hardness of the basic material, and the material edge zone has a thickness of 2 to 50 micrometers, and the steel measuring element is provided on the inside and outside with the material edge zone that has increased strength and increased hardness. | ||
| 地址 | Klingenberg DE | ||