The reason for the color difference of the stainless steel color decorative board
According to reports, most of the titanium plating furnaces in metal material plants are basically semi-automatic vacuum titanium plating furnaces. In order to reduce production costs, many manufacturers continue to speed up the production process in order to achieve higher yields; therefore, the film becomes thinner and thinner, and the working time of the titanium plating furnace is reduced from 1 hour to 10 minutes or less. At the same time, due to the short working time of the titanium plating furnace, the technical requirements for voltage, current and gas uniformity are correspondingly reduced and unstable. This is easy to produce undesirable consequences, such as reduced adhesion of the color film to the surface of the stainless steel, uneven color, Z will eventually lead to the color difference of the stainless steel plate, and even the paint film will fall off. On the other hand, the traditional water-plated stainless steel black titanium plate also has the problem of too shor t current, voltage and working time, which is similar to vacuum plating.
If the color film on the surface of the stainless steel color decorative plate is too thin, after the product is formed or used, it will also cause local, irregular and irregular color changes under the chemical reaction of temperature, humidity and even contact with general chemical raw materials. Time cannot be predicted.