Experimental study of polymer coatings quality of tractor and automobiles body parts from the elastomer F-40 solution with infrared drying

Infrared drying of automotive coatings is quite widely used in painting. However, the infrared heat treatment of the coatings from elastomer F-40 solution is not studied. The article presents the method and results of experimental studies of defects in coatings for tractors and automobiles body parts from the elastomer F-40 solution with different methods of drying, deformation and strength properties of the elastomer F-40 from the infrared operation mode, and the optimum mode is provided. Price of body parts components and assemblies for tractors and automobiles is much higher than the price of other typical parts and largely forms the price of units and machines in general. These items are basic, resource details, which mainly determine lifetime of the entire unit. One major reason of body parts rejection is mounting bores wear due to fretting corrosion. Polymer coating on the surface of the holes can significantly increase tolerance when boring holes in the process of production of new body parts and also increase the resource of bearings fixed joints and eliminate the occurrence of fretting corrosion. The use of thermoradiation drying method of coatings on the basis of elastomers allows to reduce defects in the coating in 1.43 times compared to the convective process. The paper defined the optimal mode of infrared drying of elastomer films F-40 (temperature , time ). It is found out that infrared drying comparing to convection method provides increase of material strength in 1.42 times, reduction of thermal treatment temperature in 20оС, of time in 1hr, which confirms the reduction of energy consumption.

body part, elastomer, infrared radiation, bearing, coating, defect, quality