The cause of the localized explosion of quartz stone plate
Quartz stone has become more and more widely used in home decoration. From the field of the rapid occupation of countertops, it has gradually penetrated the entire home improvement market. However, with the wide application, the exposed problems have become more and more obvious, such as bursting and partial discoloration, which has become the biggest problem facing the quartz stone industry.
Quartz stone is die-cast from more than 93% quartz crystal or silica sand and about 7% resin and other additives. The artificial quartz stone is formed by vacuum negative pressure, high frequency vibration molding and heating and solidification. Its texture is hard and the structure is compact. It has wear resistance unmatched by other decorative materials (Mohs hardness 5-7 or above) and pressure resistance (density). 2.3g/cm3 or more), high temperature resistance (300°C temperature resistance), corrosion resistance, penetration resistance, no radiation, etc. It is a green and artificial artificial stone.
Many people will wonder that quartz stone can withstand temperatures up to 300°. Why does the heat container directly on the table cause cracking and discoloration? As mentioned above, quartz stone plates are originally artificial stone and are brittle polymer composite materials. In the case of high temperature, under the physical action of heat expansion and contraction, due to the local sudden heat, the plate can not withstand the thermal expansion and contraction of the extrusion force will burst.