The reason why the porcelain dining table cracks & the measures to prevent cracking
First of all, a clear concept: high hardness does not mean that it will not break, and quite the opposite, if the strength is not enough, the higher the hardness of the object, the easier it is to break. For example, although the hardness of diamonds is 10, very fragile, accidentally dropped on the ground will break, so you pay attention to the shape of the metal claw of the diamond ring a week, they are used to fix the diamond, in addition to another big role is to prevent landing on the ground when the diamond directly hit the ground.
Let's go back to the question itself, because not all porcelain slab dining tables crack, so the question is really: why, "does your porcelain slab crack?
There are only two direct causes of cracking, one is an external force and the other is internal stress.
Possible cause one: external force causes fracture As you can probably see by the picture, the desktop is 6+ wood baseboard composite even if it is a rock slab. And 6mm rock board, generally used for wall paving, even if the composite tempered glass, impact resistance is also lower than the normal for countertops 12mm and above specifications of the rock board, composite wood board performance is even worse, plus if the use of not the real sense of rock board, but a large number of finished furniture specifications board, that is very likely to fracture after a large external force impact.
Possible cause two internal stress leads to fracture About internal stress, simply put, is the manufacturing process of rock slabs/tile, are to pass the pressing/fired steps, and these two links, will let the board internal generate a large pressure, if the equipment / raw materials/process is not in place, are possible after the production of the product, the internal stress is too large or uneven. When making finished furniture, the rock board needs to be cut and polished and other processing, after changing the factory shape, it will allow the internal stress to be concentrated or released, plus the expansion coefficient of the composite wood and rock board is different, once the ambient temperature changes, it may eventually lead to fracture due to its own internal stress. All said and done, regardless of internal or external forces, in fact, the conclusion is very simple only one, that is, the quality of your board does not work. The strength is not enough, or the strength of the manufacturer is not enough, resulting in the final product quality does not work.
