Rockwell Hardness Testing of Plastics
1957 Volume 23 Issue 131 Pages 500-506
Details
1957 Volume 23 Issue 131 Pages 500-506
In the Rockwell hardness testing of plastics, the relations between diameters of balls, initial load, main load and the depth of indentations were investigated. At the same time, the behaviors of plastics for loading and unloading were clarified. As a result, we have found that the hardness values given by ASTM A and B methods indicate some different properties of materials from each other. For finding the true depth of indentation, electric inductance gage was designed. The hardness values measured by this gage for several kinds of plastics were analyzed by statistic methods, showing the posibility of changing the dial gage for the new gage.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Transactions of the Japan Society of Mechanical Engineers Series C
Transactions of the Japan Society of Mechanical Engineers Series B
Transactions of the Japan Society of Mechanical Engineers Series A
