The marble plate appearance quality

Marble is a kind of high-grade adornment material, when the choose and buy must be careful, in order to avoid the waste of money. The stone material of experience and slightly employees know, stone material as a kind of natural material, physical and chemical change by the earth, the effects of the mining and processing, and many other factors, the same product quality difference is bigger, relative to other traditional industry products it onsite evaluation, is very important. And identify marble exterior quality from the following several items from his hand.

(1) the judge decorative pattern is tonal
In the light of the sufficient conditions and the selected good plank and with a group of other to choose and buy the Marble Slab plate and flat on the ground, standing at a distance of 1.5 m place them carefully visual. With a group of marble plate requirements of decorative pattern is tonal should basic accommodation.
(2) the surface defect inspection
In the light of the sufficient conditions and plank flat on the ground, standing in the distance the Artificial Marble plate lm place observation invisible defects think no defect; Standing in the plank lm place visible in 1.5 m place not obvious flaws for no obvious defects; Standing in the plank 1.5 m place obvious defects of defective see that.
The defects of concrete observe a plank warping; Plate surface have crack, sand holes, different spots, stains and cave phenomenon exists. If the judge the above several defects is not for classy article, at the same time plank plank not have edges of positive drop horn defect; If the above defects not obvious also have no obvious lack of edges off, then can maintain the horns for first class; sheet If there is that a few defects but not affected use, and positive only 1 director sheet is not more than 8 mm wide, not more than 3 mm long, wide or lack of edges are not more than 3 mm drops horn, then can judge the plate for qualified products.
Plank in the transportation, loading and unloading process and touch bad, can undertake bond (on) or repair the broken plate (according to the surface defect, edges and certainly some pits or hemp dot). But felt, repaired positive are not allowed to have obvious trace, color and color close to positive.
(3) to examine mark
The marble plate mark of order: the name, the classification, size, grade, standard
Named after the marble plate order: the waste material origin place names, decorative pattern is tonal characteristics, marble (code name for M).
The marble plate into two broad categories: general plate type (code N) : for a square or rectangle plate; Alien sheet (S) code is for other shapes of plank:. The marble plate has three levels: classy article (code name for A), grade A (code B) and product (code C). Rank is based on the specifications of the plate size allow deviation, flatness allow limit tolerance, Angle allow limit tolerance, outward appearance quality and mirror gloss. Such as in Beijing fang shan magmatic white marble of the waste material production at type size for 600 mmX 400 mmX 20 mm of grade a sheet named: white marble marble marked as fang shan magmatic fang shan magmatic: white marble (M) N 600 X400X20BJC79 marble plate shall be marked with a factory production factory name, trademark, : mark. So through the check mark, can the general appearance of plate quality understand somewhat.