MTS Hand-Operated Hydraulic Pump - Manual (Page 8)

Hand-Operated Hydraulic Pump 8
Force versus
temperature
The following figure shows that the grip force rating for specimen temperatures
up to 700°C is 67 kN (1292°F at 15,000 lb) is stable. The figure also shows that
the force rating is reduced proportionately for specimen temperatures between
700°C and 1000°C (1292°F and 1832°F), with a maximum force rating of 8.9 kN
at 1000°C (2000 lb at 1832°F).
Grip Force Rating versus Specimen Temperature
Force versus hydraulic
pressure
The horizontal scale at the bottom of the graph shows required gripping pressure
versus maximum force to be applied, which is shown on the left hand vertical
scale.
The right hand vertical scale is provided as a convenience. Assuming that the
gage portion of the specimen has a diameter of 0.25 inches, the right hand scale
shows maximum engineering stress (for a 0.25 inch diameter specimen), versus
required gripping pressure on the bottom horizontal scale and also the equivalent
force on the left hand vertical scale.
Specimen Temperature
66.7 kN up to 700º C
(15 kip up to 1292º F)
8.9 kN at 1000º C
(2 kip at 1832º F)
1038º C
(1900º F)
482º C
(900º F)
0 kN
(0 kip)
66.7 kN
(15 kip)
•
•
Load