The invention provides a
vegetable oil controlled
carbonization non-stick
oil film non-stick to a frying pan and a preparation method of the
vegetable oil controlled
carbonization non-stick
oil film, and belongs to the technical field of
cooker surface modification. The method comprises the following steps: atomizing and
coating edible
vegetable oil on a clean and dry pot body; performing primary high-temperature setting, controlling the temperature in an interval from an actually measured
flash point of vegetable oil to 20 DEG C lower than the
flash point, dividing into three curing gradients, taking a lower
temperature limit as a
thin wall of a pot body, and taking an upper
temperature limit as a
thick wall; performing
phase change on the
grease to generate a matte carbonized bottom layer; the temperature is reduced by 15 DEG C relative to the primary film forming temperature, and secondary oil supplement infiltration crosslinking is carried out, so that a double-layer non-stick carbonized
oil film with a matte inner layer and a bright and compact outer layer is formed. Edible vegetable oil such as
soybean oil and
rapeseed oil is adopted, and the device is suitable for
electric heating, hot air, high-frequency heating and continuous track or semi-automatic production lines and is suitable for stainless steel, aluminum,
wrought iron and
cast iron cookware. The product has no chemical
coating, is safe and non-toxic, the oil film is
shovel-resistant and wear-resistant, the
adhesive force is strong, and the product has self-repairing and excellent non-sticky performance and is suitable for industrial large-scale production.