Thermoradiative treatment of body parts in the mounting boresrepairing process by elastomer F-40
Infrared treatment researches of elastomer solution coatings is of scientific and practical interest, because application of infrared treatment makes possible to reduce porosity and to improve quality of coatings. Suggested new drying method for polymer coatings of elastomer F-40, which coat mounting surfaces of body parts. Compared infrared and convective drying methods. Choosed optimal wave length and type of infrared emitter. According to the results choosed “bright” medium-wave emitter. These emitters have high heating rate, almost iner-tialess and easy to operate. Presented spectrophotometer “Iraffinity-Г’ research results for F-40 elastomer solution. According to research results elastomer have absorbing zone in long-wave region. Created experimental unit with QTS 750 W medium-wave emitters and QTSR reflectors. Based improvement of coatings quality in the process of infrared treatment. Infrared emitters heats the metal base instead of polymer providing free solvent evaporation. Presented effectiveness of two-phase thermal treatment. Heating above the boiling point of acetone leads to the formation of solvent blisters. In order to exclude blisters formation is proposed two-phase thermal treatment of elastomer. At the first stage metal heating below the boilng point to evaporate the solvent. At the second stage recommended heating at optimal polymerization conditions.