In general, the mining of granite is made of wire sawing. There are
new technologies such as dense drainage and flame injection. Flame
spray method of mining stone cutting neat, no injury, high
production efficiency. Pick stones with coarse whole called blocks,
followed by artificial drilling or sawing machine to carve,
prepared bulk, plates with required size; milling machine or lathe
machining, a cylindrical or arc shape; the artificial cut coarse
and fine grains of rock drilling, grinding, or by machine the
surface polishing, crystal clear. Granite does not pollute the
environment. Synthetic materials are often accompanied by bad or
even toxic by-products, which need to be replaced several times
during the construction period. Granite does not need to be
replaced because it is very durable.
In addition, granite is very practical and can be made into a
variety of surfaces - polishing, sublight, and fine.Since granite
is often contained in radioactive materials, it is necessary to
measure the level of radiation when using granite and reconfirm its
use.
Eight methods for stone surface treatment:
Polishing: high gloss on the surface. The polishing may last for a long time
or not, mainly to see the type of stone. Granite, Dali, and
limestone are usually polished and need different maintenance to
keep their luster.
Matt: polished surface looks very soft, obvious scratches, without too
much care. Marble, limestone and slate are suitable for polishing.
Pickling: there are small corrosion marks on the surface. The surface of
the acid is less scratched, and the appearance is more simple than
the surface of the polished surface. Most of the stones can be
pickled, but the most common are marble and limestone. Acid
pickling is also a way to soften the gloss of granite.
Chiselled (Axe chopping): the surface is not smooth. After initial cutting, the stone is
processed to eliminate obvious scars, but the effect is not up to
the ground after effect. Granite, marble, and limestone can be
treated in this way, usually in a custom-made case.
Flamed: rough surface. The surface is mainly used as a floor or as an
ornamental surface for commercial building, with a higher labor
cost. The burning surface is formed by rapid cooling after high
temperature heating. The surface of the fire is usually granite.
Crack: rough surface, but not as rough as fire. This surface treatment
is usually used in mine hand cut or crack chisel to expose the
natural stone surface. This surface treatment is mainly used for
slate.
Tumbled: smooth or slightly rough surface, smooth and broken edge angle.
There are several ways to achieve the roll effect. 20 millimeter
bricks can roll in the machine, and 3 centimeters of bricks can be
rolled up and split into two blocks. Marble and limestone are the
first choice for rolling.
Brushing: the surface is old and old. The treatment process is to brush the
surface of the stone and imitate the natural wear effect of the
stone.
Physical property:
