The quality of finished finished stone can be identified from the following four aspects:
One view, that is, the surface structure of the stone is observed by the naked eye. Generally speaking, the uniform fine material structure of the stone has a delicate texture, which is a good stone material; the coarse grain and the unequal grain structure stone have poor appearance effect, the mechanical properties are not uniform, and the quality is slightly poor. In addition, due to the influence of geological effects in natural stone, some fine veins and micro-cracks are often produced in it, and the stone is most likely to rupture along these parts, and should be removed. As for the lack of edges and angles, it is more important to affect the appearance, especially when choosing.
The amount of granite decoration is the size of the stone. In order to avoid affecting the splicing or causing the pattern, pattern and line deformation after splicing, affecting the decorative effect.
Three listen, that is, listen to the sound of the stone. Generally speaking, the stone with good quality, uniform internal density and no micro-cracking is crisp and pleasant; if there is micro-crack or fine vein inside the stone, or the contact between the particles becomes loose due to weathering, tapping The voice is hoarse.
Four tests, that is, using a simple test method to check the quality of the stone. Usually a small drop of ink is dropped on the back side of the stone. If the ink is quickly dispersed and leached everywhere, it means that the inner particles of the stone are loose or there are micro-cracks, and the quality of the stone is not good; otherwise, the stone is dense and the texture is good.
In the selection of finished plates, since the raw materials of the stone are natural, it is impossible to have the same texture, and the level of the process in the mining process is also different. Most stone grades are graded. Granite stone has no colored stripes, most of which have only colored spots, and some are solid colors. The finer the mineral particles, the better.
Polycarbonate Sheet ,Phenolic Sheet ,Nylon Products ,Polyurethane Sheet
Plastic Sheet, Board & Panel Co., Ltd. , http://www.nbuhmwpe.com