It is believed that most people in the stainless steel industry know that after the finished stainless steel sheet is processed, it must have a protective film on its surface. This film protects the surface of the sheet from being scratched. We must pay special attention to the film, if used improperly, it is very easy to damage the surface of the sheet. Therefore, pay attention to the following issues when filming:
1, first of all should choose a reasonable film. Common film black and white film (black rubber surface), blue film, transparent film, etc, commonly used thickness of 5 to 7 wire thickness, viscosity from low viscosity to high viscosity, customers can choose according to their needs.
2, in terms of viscosity, the general snow sand to choose a slightly higher viscosity film, and filaments can choose a slightly lower viscosity film. Winter must increase viscosity, while summer can reduce viscosity. These choices are mainly to prevent two phenomena: one is that the viscosity is not enough for the film to fall off automatically, and the second is that the viscosity is too large to cause film tearing and even the phenomenon of degumming.
3, the quality of the film itself is also the focus. From the point of view of the production process, the rubber particles in the film are difficult to avoid, but the rubber particles have a great influence on the subsequent stamping and drawing of the elevator stainless steel decorative sheet. Therefore, it is necessary to make a request for the size and quantity of the rubber particles. Can make standards according to their own quality requirements. In the same way, inclusions, bubbles, and wrinkles in the film will affect the quality of the product. If the customer's request is really high, you can choose to import the film. The quality of the imported film on the market is very good in France and Germany.
Of course, the overcoating process can also cause bubbles or wrinkles in the film. These quality problems are related to the operation level of the film applicator and the staff. The machining center should avoid similar situations.