熱間振り試験機の試作について
1956 年 42 巻 10 号 p. 980-985
詳細
1956 年 42 巻 10 号 p. 980-985
This report deals with the newly-designed hot torsion testing machine, and this machine cis designed to investigate the workability i.e. the strength and malleability of steels at high speed, high temperature corresponding to general hot-working processes.
This machine consists of the torque pick-up, a resistance furnace, a motor and reduction gears etc, and its capacity is as follows;
(1) Twisting speed of specimens can be changed from 30 to 1500r.p.m. by nine steps.
(2) Testing temperature range is below 1400°C.
The feature of this machine is the use of strain gage as torque measuring apparatus, and in this way, torque can be measured accurately even at initial instant of twisting.
In this article, one example of experimental resuits were described together with the construction of this machine.
