Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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TO THE QUESTION OF THERMAL CONTROL IN RELEASABLE LOW-LOADED JOINTS MADE OF DISSIMILAR METALS

Popov V.M. 1 Yerin O.L. 1 Lishnikova E.N. 1
1 FSBEI HPE “Voronezh State Academy of Forestry and Technologies”
In many areas of modern technology in the design of machines and devices there is a need to have information about the processes of heat transfer through composite systems and instruments for temperature control. This article presents the results of experimental studies on the formation of the contact thermal resistance through the connection of dissimilar metals with low thermal conductive fillers operating in the regime of small contact force. It was found that the most effective heat insulators are as fillers of metal grids. Using as fillers of metal grids can increase the contact thermal resistance in section area on the order in comparison with the contact pair in direct touch of surfaces. Effect of temperature and contact force on thermal resistance in the area of the section is experimentally demonstrated. The transition to the dimensionless thermal resistance can provide data on the optimal combination of base metal of contact pair and filler material.