As for the exterior wall decoration of the building, everyone knows that a lot of stone will be used now, and the outer wall stone usually has two kinds of natural and artificial. Artificial façade stone is synthetic, then what is the synthesis of façade stone? As the owner, we seem to have an understanding of the synthetic material of the external wall stone.
What are the external stone natural stone?
The exterior wall decoration stone can be divided into two categories: natural stone and artificial stone. Natural stone refers to stone building materials such as marble, granite, limestone and slate, which are processed by physical methods such as sawing and polishing, including blocks. Materials, sheets and polished finishes.
Exterior wall natural stone features
Marble: mainly composed of calcite, limestone, serpentine and dolomite. It is easy to weather and dissolve, and it is easy to lose luster. There are two main types of marble used for decoration: natural marble and artificial marble.
Sandstone: A kind of matt stone that does not cause pollution caused by light reflection. It is elegant, warm and luxurious. In terms of durability, it does not weather and does not change color.
Granite: composed of feldspar, quartz and mica, the rock is hard and dense.
Synthesis of artificial exterior stone
Artificial stone is made of unsaturated polyester resin as bonding agent with natural marble or inorganic powder such as calcite, dolomite, silica sand, glass powder, etc., as well as appropriate amount of flame retardant, color, etc., mixed by ingredients, porcelain casting, vibration Compressed, extruded, etc. formed by curing.
Artificial stone features
Stone exterior wall brick: It is made of natural stone and processed by special processing and cutting. It has unique texture and natural color of stone. This kind of exterior wall brick decoration effect is high-end fashion, and it is mostly used in the decoration of European style architecture.
Artificial culture stone: It is made of silicon calcium, gypsum and other materials. It mimics the shape and texture of natural stone. It has the characteristics of light texture, rich color, mildew, non-combustible and easy to install. However, artificial culture stone is not dirty and difficult to clean.
Polyester concrete: It is suitable for the production of complex shapes by using organic unsaturated resin as binder, sand, stone powder and other ingredients, depending on mold casting and curing.
External wall tiles: small size, light and lively, strong and wearable, is also a popular exterior wall decoration building materials in many high-rise buildings.
Glazed exterior wall tiles: soft color, fine texture, natural and simple, with bright and matt, green body also has ceramic and porcelain. The ceramic glazed exterior wall brick has a high water absorption rate, and the hardness and the brick structure are not good enough for porcelain.
Vacuum marble: using unsaturated resin as binder, combines the scraps of scrap in stone mining, adopts vacuuming method, reduces the porosity and solidifies into large artificial stone, which is cut and polished to become a plate. The product is high in strength and highly decorative.
The problem of what kind of material is synthesized by the outer wall stone is now basically clear to everyone. With the development of science and technology, all kinds of building decoration materials are constantly improving, as is the outer wall stone. The cost of artificial façade stone is lower, and the quality performance is more suitable for the requirements of modern architecture, and it has become the mainstream material for exterior decoration of buildings.
Spade bits are used for rough boring in wood. They tend to cause splintering when they emerge from the workpiece. Woodworkers avoid splintering by finishing the hole from the opposite side of the work. Spade bits are flat, with a centering point and two cutters. The cutters are often equipped with spurs in an attempt to ensure a cleaner hole. With their small shank diameters relative to their boring diameters, spade bit shanks often have flats forged or ground into them to prevent slipping in drill chucks.
Some bits are equipped with long shanks and have a small hole drilled through the flat part, allowing them to be used much like a bell-hanger bit. Intended for high speed use, they are used with electric hand drills. Spade bits are also sometimes referred to as "paddle bits".
Spade drill bits are ordinarily available in diameters from 6 to 36 mm, or ¼ to 1½ inches.
Wood Spade Drill Bit,Fat Drill Bit,Paddle Drill Bit,Wood Drill Bit
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