Plastics are also used in covers for industrial machinery.
In recent years, PVC materials have been in low demand due to *RoHS regulations, and instead PET, polycarbonate, and acrylic are widely used in plastic panels.
Here we will explain the characteristics and applications of each material.

*RoHS regulation…Restriction of Hazardous Substances (specified hazardous substances)
Substances contained in electronic and electrical equipment must not exceed designated values.
The following are designated substances

1. lead 1000ppm or less
Mercury 1000ppm or less
3. cadmium 100ppm or less
Hexavalent chromium 1000ppm or less
Polybrominated biphenyls 1000ppm or less
Polybrominated biphenyls 1000ppm or less

1. Strength

Strength is one of the most important factors in machine covers.
Materials that prevent objects from hitting or cracking and scattering are as follows,
Polycarbonate > PET > Acrylic, in that order.

2. prevention of static electricity

Static electricity is a problem that should be prevented as much as possible in machinery and equipment.
Plastic panels are available for antistatic and antistatic use, so they are effective for use in clean rooms because they do not absorb dust and dirt.

3. Color

Acrylic is available in the widest variety of colors.
The colors of acrylics are explained in [STUDY｜Materials] Color Abbreviations, Color Numbers, and Other Notations on Drawings.
Colorless transparency also varies slightly depending on the material.

4. price

If price is important, acrylic is the cheapest.
There is a difference in price between antistatic and general types, with the antistatic type being more expensive.

Conclusion

Selection is important depending on the characteristics of the material, such as deflection and the environment (temperature, etc.) in which it will be used.
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