Simulation test block for on-site determination of hardness of boiler small tube and use method thereof

• Main Authors: LI JIAOJIAO, GAO YANZHONG, ZHANG FUXIANG, LIN LIN, SUN PUJIE, ZHU TING, LIU YAMING, LYU YOU, ZHU YULONG, YIN ZUN, GAO LEI, HOU ZHAOTANG, LYU YINAN
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a simulation test block for on-site determination of boiler small tube hardness and a use method thereof, and belongs to the technical field of inspection and detection. A plurality of connecting holes are formed in the reference block, each connecting hole is connected with a sample tube, and a hardness judgment area and an identification area are arranged on each sample tube. The real calibration value and the detection calibration value of each hardness value are identified in the identification area, so that a standard can be provided for calibration verification and subsequent hardness deviation trend judgment of the portable Leeb hardness tester. The device is reasonable in structure and easy and convenient to manufacture, the hardness of the boiler small pipes can be accurately detected, the hardness deviation trend of a batch of boiler small pipes can be accurately judged according to the maximum deviation value of the upper and lower limits of the hardness, and a theoretical b