TITLE:
Induction Heating in the Processing of Ti & Zr
AUTHORS:
Victor Demidovich, Irina Rastvorova
KEYWORDS:
Induction Heating, Optimal Control, The Method of Electromagnetic Processing, Electromagnetic Numerical Analysis, Precise Heating, Melting and Heat Treatment of Titanium and Zirconium Alloys
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.6 No.13,
November
25,
2014
ABSTRACT: Induction
heating has important applications in science and industry. The method of induction
heating can be successfully used for melting and heat treatment of titanium and
zirconium alloys. Different applications using induction precise heating before
plastic deformation are discussed in this paper. For alloys of many metals such
as titanium, zirconium, niobium, tantalum, etc., it is important to provide precision
heating with a high degree of homogeneity of the temperature field and strict adherence
to the condition of heating. This is explained by polymorphism of the alloys based
on these metals, their chemical activity at high temperatures and the specific thermal
and electrical properties. It is very important for induction heating to define
the extreme achievable unevenness of the temperature field. For special alloys it
is necessary to use resistance furnaces for homogenization of billets’ temperature
after heating in the inductors. Optimal control can be used for massive billets
to reduce significantly the heating time, energy expenses and to improve the quality
of the temperature field distribution. Optimization of induction heating process
can be achieved by synchronous solution of the problem of optimal control and design
with specially developed models.