Instance of a New Type of Brinell Hardness Tester Applied in the Thermal Power Construction Site
Abstract: Based on the new kind of Brinell hardness tester, the author measured the weld hardness of the reheat pipe weld and main Steam pipe adopted P92 steel used in superheater of ultra-supercriti- cal coal-fired unit with 2 × 660 MW located in one power plant. The working principle as well as the advantages and disadvantages of Leeb hardness tester and Brinell hardness tester was compared, and the technical rationality and site suitability of this new type of Brinell hardness tester were also discussed so as to truly and accurately reflect the heat treatment hardness of weld joint after welding in the thermal power construction site. Results showed that this new type of Brinell hardness tester has advantages including indicating value of good repeatability, high precision, and real data.
文章引用: 叶朝峰 , 杨 慧 (2015) 新型布氏硬度计在火电施工现场的应用实例。 机械工程与技术， 4， 72-79. doi: 10.12677/MET.2015.41005
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