1. Hardness: Hardness is one of the parameters that bes […]
1. Hardness: Hardness is one of the parameters that best reflects the production process and technology of casting acrylic sheet, and is an important part of quality control. Hard acrylic lampshade
The degree reflects the purity of the raw material PMMA, the weather resistance of the sheet, and the high temperature resistance. The hardness directly affects whether the sheet will shrink and bend, and whether the surface will be cracked during processing. Hardness is one of the hard and good indicators for judging the quality of acrylic sheets, and the average Dalhou hardness value is about 89 degrees.
2. Thickness tolerance: The control of sheet thickness tolerance is an important manifestation of quality management and production technology. Acrylic production has an international standard ISO7823 tolerance requirements for cast-in-place plates: tolerance = ± (0.4 + 0.1 x thickness) Tolerance requirements for extruded plates: tolerance = < 3 mm Thickness: ± 10 % > 3 mm Thickness: ± 5 %
3. Transparency/Whiteness: Strict raw material matching, advanced formula follow-up and modern production process ensure excellent transparency and whiteness of the board. After the flame is polished, it is crystal clear.