Quality improvement of disassembly of multicomponent compounds using thermal action

• Date: 2014
• Main Authors: Романов, Сергей Валерьевич, Лагода, Анна Николаевна
• Format: Article
• Language: Russian
• Published: Інститут енергетичних машин і систем ім. А. М. Підгорного Національної академії наук України 2014
• Subjects: disassembly of joints; induction heating; non-stationary thermal process; mathematical model; УДК 621.757
• Online Access: https://journals.uran.ua/jme/article/view/21325
• Journal Title: Journal of Mechanical Engineering

Disassembly of interference joints or smelting of fusible fillers differ by the process non-stationarity since there are periodic thermal changes of elements along with real transformations. To ensure minimum energy consumption and maximum system efficiency thermal action should be fast and targeted, i.e. it is necessary to heat only those sections of the female part of joint, expansion of which will provide the expansion gap, required for disassembly, or the body section, which contains fusible filler, subject to smelting in the shortest period of time. Induction method of heating the female part of the joint or ferromagnetic container with fusible filler meets these criteria. The mathematical model of non-stationary thermal process, which is the system of second-order differential equations of variable structure depending on the temperature of elements of multicomponent joints is proposed in the paper. The model can be used both for heating control in the filler smelting processes and for heating control in the thermal disassembly of multielement interference joints. Using this model will allow greatly minimize energy consumption during the disassembly of multicomponent joints.