The thermal stability of the glass coating of a pipe in the oil and chemical industry has been investigated. It was found that an increase in the thickness of the glass coating leads to a sharp deterioration in the heat resistance of the pipe coating. This phenomenon is associated with an increase in temperature gradients when heating or cooling thick coatings compared to thin pipe coatings. It was found that the high thermal resistance of the glass coating of the pipe mainly depends on the thickness, grade and geometric dimensions of the coating and steel pipe.
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