Causes of damage to enamel products

Manufacturers of enamel products said that if they do not pay attention to the protection of enamel products, they are likely to be damaged. What are the reasons?
       One reason is that it is damaged by thermal stress. The enamel product is baked at high temperature and the enamel is bonded to the steel plate after cooling. Since the linear expansion coefficient and elongation of the enamel are smaller than the steel plate, the deformation of the glass enamel after cooling is less than the deformation of the steel plate. , The enamel is restrained by the steel plate to produce compressive stress. Electrostatic puncture is also a reason. When the liquid with suspended solids is stirred in the enamel product, the suspended solids rub against the enamel strongly, and at the same time the suspended solids themselves also generate friction, which generates a large amount of static charge. The high static charge produces a strong effect on the enamel. The puncture effect causes pitting of the enamel, so the stirring speed should not be too fast.
       Another reason is the poor enamel quality, mainly due to the crude production environment and the inadequate rust and dust prevention standards, resulting in a poor combination of the base glaze and the substrate. The quality of the enamel products must be strictly manufactured in accordance with the manufacturing regulations. .