Decoration to buy electricity crack the way to crack the real wire
Home appliances can not be separated from the wires, and now there are many types of wires sold in the market. Some poor quality products are mixed in and removed, and electrical wiring is a basic project in home decoration. The quality of the works is directly related to the households. Electricity safe and convenient. Let's take a look at the way to crack real and fake wires today
First, to fully understand the purchased wire manufacturers, see the wire certificate, brand name, site.
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Second, when buying wires, use a vernier caliper to measure the copper diameter of the inner core. Take the general 2.5 square wire as an example. The qualified copper wire diameter is generally 1.78 millimeters, while the fake and shoddy products are generally only 1.76 millimeters. 1.76 mm or less. At the same time, pay attention to the weight of the wire. A qualified roll of 2.5 square feet of Yongtong wire has a length of 100 meters and a weight of 3.1 kilograms. Other wires may not be the same in length and weight.
Cable can be wire
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Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes for use in industrial machinery, cutting tools, abrasives, armor-piercing rounds, other tools and instruments, and jewelry.
Tungsten carbide is approximately two times stiffer than steel, with a Young's modulus of approximately 530–700 GPa (77,000 to 102,000 ksi),[and is double the density of steel-nearly midway between that of lead and gold. It is comparable with corundum (α-Al
2O3) in hardness and can only be polished and finished with abrasives of superior hardness such as cubic boron nitride and diamond powder, wheels, and compounds.
Tungsten Carbide Disc Cutters,Cemented Carbide,Tungsten Carbide Bar,Tungsten Carbide Punching Dies
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