Now, the application of plastic housing has been widely used. In life, we are all very common. For example: The electrical housing, and our common washbasin, are plastic, but when the plastic is processed, the color is not Stability is a common problem.
1. First of all, the temperature of the injection molding machine must be checked, the color is unstable, and it is related to the high and low temperature of the injection molding machine. Therefore, when the plastic housing is processed, it must be prioritized.
2. There are times when the back pressure adjustment is too large, the production cycle is unstable, the production cycle is unstable, and when it is stopped, it will change the color.
3, Mixers do not mix the toner and raw materials according to the mixing process. For example, the time is not enough. The inconsistent order of feeding or feeding causes uneven color, which is one of the reasons for color instability. When plastic shell is also the focus of inspection.
4, due to the humidity of the raw material is too large, the viscosity has not yet spread, and finally will cause plastic processing color instability.
5. There are many times when the amount of tapping material is reused. This has a greater impact on light-colored injection molded parts.
6. The grade of raw materials is inconsistent. Because the color of each raw material is different, the color of the same color injection molded parts will be different. Sometimes the same supplier, the batch number of raw materials is different, the background color will be somewhat different, so the products with high requirements for color deviation are required. , It is even necessary to control whether the background color of each batch is the same.
7. Too poor toner quality, poor heat resistance, or the use of toners that are unsuitable for the raw material will make the color unstable.