Open AccessPhysical Modelling of the Corona Discharge Effect on the Casting in the Mold
Author(s) -
G. V. Ogloblin,
M. A. Ankudinova
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/753/5/052037
Subject(s) - materials science , corona discharge , partial discharge , corona (planetary geology) , substrate (aquarium) , voltage , casting , composite material , electrode , optoelectronics , electrical engineering , chemistry , physics , oceanography , astrobiology , geology , venus , engineering
In this article we describe the technique and the methods of physical modelling of the corona discharge usage in order to harden the material. The active substance in the detector is the liquid crystals of a cholesteric type with a mesophase of 40-45 C. The substrate of the detector is a cast of aluminum alloy with specified parameters in the form of a rectangular or round shape. A corona discharge is created with the help of high-voltage power source (e.g. «Разряд») when the voltage is applied to a pair of needle-plane electrodes. The modulation of the ultrasonic signal is carried out through the inductive coupling. The parameters of the corona discharge are calculated with accordance to the received samples and temperature patterns. An assessment of the effect of a corona discharge on a liquid metal is determined by the Brinell scale displaying the indentation hardness.