UPGRADING OF THE ROCKWELL HARDNESS PRIMARY STANDARD MACHINE

He Li, Zhang Feng, Ye Ming, Liu Lianqiu, Wang Beiping

Abstract

According to the new definition of Rockwell hardness given by the international working group on hardness, the Rockwell hardness primary standard machine has been upgraded. As the new loading system, loading monitor system, PLC control system and laser measuring system have been developed, the function of the new primary standard machine can now meet the requirements of the new definition and its measuring uncertainty can reach the expected values.

Keywords: new definition for Rockwell hardness , toothed-belt drive, hydraulic transmission, loading monitor system
Download: IMEKO-TC5-2010-NP-012.pdf
DOI: -
IMEKO TC: TC5 - Hardness Measurement

Event details

Event: HARDMEKO 2010
Technical Committee: TC5
Place: Pattaya, THAILAND
Time: 21 November 2010 - 25 November 2010
Website: http://imeko2010.nimt.or.th/

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