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摘自中国计量科学研究院和分院编,甘肃省计量处1972年6月翻印的“关于新洛氏硬度基准的量值传递和‘各种硬度与强度换算表’的编制情况”。 一、各国洛氏硬度比较情况 1.1953年由西德发起进行了一次国际比较,参加国有民德、英国、美国和奥地利,比较结果最大相差2.5HRC 2.1954年又进行一次,参加国除上述五个国家外,尚有法国和日本,比较结果最大相差2.9HRC,见表1
Excerpted from the compilation of the China Institute of Metrology and Branch, Gansu Provincial Metrology Department, June 2006, reprint of “Compilation of New Rockwell Hardness Standards’ Value Transfer and ’Comparison Table of Various Hardness and Intensity’”. I. Comparison of Rockwell Hardness in Various Countries 1.1953 An international comparison was initiated by West Germany to participate in state-owned democracy, the United Kingdom, the United States, and Austria. The maximum difference between the results was 2.5 HRC. In the year of 1954, the participating countries removed the aforementioned five countries. In addition, there are still France and Japan, the biggest difference between the results of 2.9HRC, see Table 1