How to check the quality of glass magnesium board
The other side is the sanding surface, sand light smooth and delicate without impurities, sand fine and uniform no trench, do not absorb moisture back to the halogen, no warping deformation, board tolerance is small. Mid-range glass magnesium plate should have the most characteristics of high-end board, but no sand-smooth, the opposite is the use of non-woven pavement, so that the thickness of each plate is difficult to maintain consistency, plate thickness tolerance will be larger. To withstand the plate surface turbidity scratches and stomata, fiberglass cloth dilute and disorder, the board of the tolerance, warping deformation, moisture absorption and other halogen.
Domestic glass magnesium plate can be divided into high, medium and low grade, high-grade glass magnesium board production from raw materials, process formula, equipment, and conservation and other aspects of the requirements are very strict, so far, the domestic production of high-grade magnesium Plate manufacturers are not many, so few, high-grade glass magnesium board from the appearance of the whole look at the color of the board into the milk white, the board of good density, one side is smooth, like a mirror, the fabric is translucent, 7 * 7 Fiberglass cloth texture is clearly visible, the surface without pores, bumps, dust and scratches;
Mainly involved in several aspects:
1, quality assurance documents are complete;
2, whether there are qualified testing organizations issued by the fire detection report;
3, the appearance of the board quality: flatness, whether there are cracks, the edge of the situation
4, the thickness of the plate
