A Study on the Establishment of Shore Hardness Standards

쇼어경도표준의 확립에 관한 연구

  • Bahng, G.W. (Div. of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science) ;
  • Tak, Nae-Hyung (Div. of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science) ;
  • Bong, Haheon (Div. of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science)
  • 방건용 (한국표준과학연구원 물질량표준부) ;
  • 탁내형 (한국표준과학연구원 물질량표준부) ;
  • 봉하헌 (한국표준과학연구원 물질량표준부)
  • Received : 2002.04.13
  • Published : 2002.05.30

Abstract

Shore hardness test was developed in 1906 to overcome the limit of Brinell hardness test. However, the detailed requirements on the tester was not clearly specified except the scale, i.e., 100 HS for high carbon steel and 10 HS for soft brass. As a result, the shore hardness was used for quite long time without well established standards. For the establishment of hardness standards, standard tester, standard procedure, and standard hardness block must be provided. So far the standard of Shore hardness was maintained by correlating Shore hardness scale to Vickers hardness through converting equation. This is the so called converted Shore hardness and it is not the true Shore hardness standard strictly. In this paper, the possibility of establishing Shore hardness standard based on the Shore standard hardness tester is reported.