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This article is focused on the infrared heating of shell metal moulds and optimization of temperature field on the surface of the mould. The upper part of the mould is heated by infrared heaters, and after the required temperature is attained the inner part of the mould is sprinkled with special PVC powder. The moulds are made of aluminium or nickel alloys. The described mathematical model allows us to optimize locations of heaters above the mould and thus we get an approximately uniform temperature field on the whole inner mould surface. In this way the whole surface of produced artificial leather has the same material structure and colour shade. A differential evolution algorithm is used to optimize the locations of heaters. A practical example of the optimization of the heaters locations and the calculation of the temperature field on the inner part of mould surface is included at the end of the article. The described process is one of the economical ways of artificial leathers production in the car industry.

This article is focused on the optimization of heat radiation intensity across the surface of an aluminium mould. The mould is warmed by infrared heaters located above the mould surface, and in this way artificial leathers in the automotive industry are produced (e.g. the artificial leather on a car dashboard). This described model allows us to specify the location of infrared heaters over the mould to obtain approximately the same heat radiation intensity across the whole mould surface. In this way we can obtain a uniform material structure and colour tone across the whole surface of artificial leather. We used a genetic algorithm and the technique of "hill-climbing" during the optimization process. A computational procedure was programmed in the language Matlab.

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