How to detect the color difference of automotive plastic parts Coatings?

       In daily life, the cars we often come into contact with are made of plastic materials such as front and rear bumpers and rearview mirrors. The materials of the body and plastic parts are different, so how to control the color? How to avoid chromatic aberration, in fact, this requires A Colorimeter is used.

　　How to measure the color difference of automotive plastic parts coating? This is a problem that many automobile manufacturers are very concerned about. So for the color difference control of automotive plastic parts, our professional color difference meter technology can help you, let's learn about it together.

　　Measuring principle of Colorimeter

　　The measurement light source is irradiated on the tested sample through the monochromator, the reflected light passes through the photocell, the optical signal is converted into an electrical signal, the electrical signal is amplified by the amplifier, and the current intensity is measured by the galvanometer, so as to realize the reflection of the tested sample Light is the measurement of the absolute value of the color, and the measurement principle is shown in Figure 3.

　Measuring principle of Colorimeter

　　Through the measurement of the above color difference meter, accurate color difference data can be obtained. Although many automobile factories now have differences in the control indicators and processes of paint color difference, the fundamental control is to control the L*, a*, b* value and related measurement data.

　　How to measure the color difference of automotive plastic parts paint? Let's take a look at what are the factors that affect the color difference of plastic parts?

　　According to data from major automobile manufacturers, there are many color factors in the coating of plastic parts, so if you want to control the color difference well, you need to control it from the various processes and links of painting production. Such as paint batch color difference, paint hiding ability, spraying construction process parameters, paint performance indicators and painting process, painting construction site environment, process parameter control of paint supply system, manual repainting, testing instrument calibration and standard operation, etc. For full control.

　　The above is a related introduction to "how to measure the color difference of automotive plastic parts coatings". , but also to establish and implement a set of effective color difference measurement and management methods, and monitor the construction parameters of coating materials and coatings, so as to effectively reduce the color difference problem and improve production quality.