What is basalt?
Basaltite is a kind of stone. Basaltite has the advantages of wear resistance, less water consumption, poor conductivity, strong compression resistance, low crush value, strong corrosion resistance and good asphalt adhesion. A kind of rock with dense or foam structure, which is solidified by the cooling of magma ejected from a volcano. In the classification of rocks in geology. Because of its certain viscosity, the temperature of magma flowing out from the generating volcano belongs to magmatic rocks (also called igneous rocks), as high as 1200 degrees Celsius. When the terrain is flat, the magma flows slowly, a few meters away each time; When encountering a steep slope, the speed is greatly accelerated. In the process of flowing, it carries a lot of water vapor and bubbles, and forms various shapes after cooling.
After annealing, basalt is harder and more wear-resistant than alloy steel and is a good raw material for producing "cast stone". "Cast stone" is the melting, casting and crystallization of basalt. More resistant to corrosion than lead and rubber. Basalt also plays the role of "lubricant" in an advanced process of cast steel, which can prolong the life of cast film. At the same time, basalt can also be drawn into glass fiber, which has better alkali resistance and high temperature resistance than ordinary glass fiber cloth.
How to choose basalt?
1. Eye: Basalt with good quality, with pure surface color and no tiny pores on the back of the plate. Beat each other: You can choose two pieces of textured basalt to beat each other. If they break easily, they are inferior. If not, it is of good quality.
2. Touch by hand: There will be obvious silky feeling on the surface of basalt with advantages, and the surface is very flat, but there is no inferior one. Inspection and certification: a product must first check whether it has ISO quality system certification and quality inspection report. You can prevent yourself from being cheated in the first step.
3, grasping nails: I believe many people have tried this method, it is indeed a more effective method. Excellent basalt with nails and no obvious scratches. Nose smell: inferior basaltic stone will have obvious pungent chemical smell, while high-quality stone will not.
The above content mainly describes my opinion on what is basaltic stone? How to choose basalt is introduced in detail. Xuanwu stone is literally a stone, and Xuanwu stone is also the four great beasts now, so since there is Xuanwu stone, there is no need to doubt its hardness. Although it is good, it is not without shortcomings, so two key points should be considered when trading.