We know that the pvc tube has a certain color, but do you know how the pvc tube is colored?Below the company as a professional pvc pipe manufacturer to explain the coloring method of pvc pipe.
1, pvc tube ion deposition oxide or oxide method, this method is more suitable for processing large quantities of products, such as the watch we usually bring, many watch cases and watches are plated with titanium, the color is generally Golden yellow, the principle of this method is to let the stainless steel workpiece vacuum evaporation coating in the vacuum coating machine, because of its high cost and large investment, it is not suitable for small batch processing.
2. The high-temperature oxidation method is to keep the workpiece within a certain process range and then immersed in a specific molten salt, and after a certain chemical reaction, a certain thickness of the oxide film is formed, thereby exhibiting a plurality of different colors.
3. The chemical method is to form the color of the film by chemical oxidation in a specific solution, but the control of the reference telegram is required to keep the color of the product consistent. “Because of the law” is more common.
In addition, there is also a method for coloring a pvc tube by an electrochemical method, which is popular in commercial applications, and has similarities with chemical methods, but the color of the film formed by electrochemical oxidation, because of its high degree of complexity, Less in industrial applications.