Mechanics & Industry
Volume 18, Number 7, 2017
STANKIN: Innovative manufacturing methods, measurements and materials
|Number of page(s)||6|
|Published online||30 December 2017|
Comparative evaluation of methods for the determination of heat transfer coefficients of liquid and gaseous quenching media
Moscow State University of Technology “STANKIN”,
1 Vadkovsky per.,
Moscow GSP-4, Russian Federation
2 Bauman Moscow State Technical University, Moscow, Russia
* e-mail: email@example.com
Accepted: 20 November 2017
Temperature dependences of heat transfer coefficients of liquid and gaseous quenching media were determined using a gradient probe and prismatic probe of more simple design. The probes of two different designs were tested in the same conditions. Analysis of heat transfer coefficients showed good agreement between the data obtained. The tests were carried out with liquid and gaseous quenching media: water, polymer quenchant, quenching oil and high-pressure nitrogen. Methods of mathematical modeling of steel samples quenching show the adequacy of the results.
Key words: Gas quenching / polymer quenchant / temperature gradient method / enching intensity probe / eat transfer coefficient
© AFM, EDP Sciences 2017
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