For billionaires, the new crown epidemic is like a 'gold rush'! The Deutsche Presse-Agentur said on the 17th that in 2022, the wealth held by the world's top ten richest people will jump from $700 billion to $1.5 trillion, an average daily increase of $1.3 billion, an increase that exceeds the past 14 years. These 10 people The wealth held by the world’s poorest 3.1 billion people is six times greater than that of the world’s poorest 3.1 billion people. The 10 richest Germans have increased their assets from the equivalent of about 125 billion euros to about 223 billion euros since the start of the Covid-19 pandemic, An increase of about 78%. This wealth is roughly equivalent to the total wealth of the poorest 40% of the population, or 33 million Germans.
In the future, demand for WC powder will grow as fast as the wealth of the rich during the pandemic.
Introduction to Tungsten Carbide
Tungsten carbide (chemical formula WC) is a compound (especially a carbide) containing equal amounts of tungsten and carbon atoms.
In its most basic form, tungsten carbide is a fine grey powder, but it can be pressed into shape by sintering and used in industrial machinery, cutting tools, chisels, abrasives, armor-piercing bullets, and jewelry.
Tungsten carbide is about twice as hard as steel, with Young's modulus of about 530-700GPa, twice the density of steel - almost halfway between lead and gold.
High strength, high density, and high hardness are the distinguishing characteristics of tungsten carbide, making it a versatile material with a variety of uses. Tungsten carbide can withstand extremely high temperatures, making it an excellent material for machining and cutting tools, even furnaces, and can conduct electricity. Abrasion and corrosion resistance are among the other properties of tungsten carbide.
Tungsten carbide has a high melting point of 2,870 °C (3,140 K). It has a boiling point of 6,000 °C (6,270 K), thermal conductivity of 110W·m (-1) ·K (-1), and thermal expansion coefficient of 5.5μm·m (-1) ·K (-1) at a pressure equivalent to 1 atmosphere (101.325 kpa).
Tungsten carbide is very hard, with a Morse rating of about 9 to 9.5 and a Vickers number of about 2600. It has a young's modulus of about 530-700 gpa, a volume modulus of 630-655gpa, and a shear modulus of 274GPa. Its ultimate tensile strength is 344 MPa, its ultimate compressive strength is about 2.7GPa, and Poisson's ratio is 0.31.
The p-wave velocity (sound speed) through the tungsten carbide thin rod is 6220 m/s.
Tungsten carbide has a low resistivity of about 0.2 µ ω ·m, comparable to some metals, such as vanadium.
Tungsten Carbide VS Diamond
Tungsten carbide is a very hard material. It is predicted to have a Mohs hardness of 8.5 to 9, second only to diamonds. This makes it a valuable metal with many different uses. Tungsten carbide bits are very tough for operations where other metal bits can become blunt and break.
Tungsten Carbide VS Steel
Steel has three times less rigidity than tungsten. This rigidity makes tungsten stronger than steel and titanium. Tungsten is very durable and can withstand many penalties in any job. Whether it's tungsten powder or tungsten carbide blades, this compound gets the job done.
Tungsten Carbide Application
Buildings need to use tools of high strength and toughness so that they can withstand the materials used to form most structures. Materials such as cement and asphalt are difficult to penetrate and require exceptionally durable and strong blades or drills, such as those made of tungsten carbide. Tungsten carbide is commonly used in building materials such as saws and drill bits because it is almost unbreakable.
To make electronics, construction projects, industrial gears, and even aviation equipment, alloys are made by mixing metals with other metals or elements. These alloys have specific properties, such as strength or heat resistance, which are necessary for each product and its use. Alloys made from tungsten carbide are a particularly popular choice for building materials and tools. About 17% of tungsten carbide is used to make these alloys.
Production of surgical tools
Tungsten carbide is commonly used to make surgical instruments because it improves their performance and is resistant to corrosion. It increases the life and strength of surgical tools. The properties of tungsten carbide, such as its ability to sharpen while maintaining hardness, are well suited to the surgical industry.
Because of its durability and strength, tungsten carbide can be used in sports equipment such as golf clubs. It can be used for Musical Instruments such as guitar slides. Another important use of tungsten carbide is for the nibs of ballpoint pens. Tungsten carbide is also used in electrical components, especially light bulbs, because of its heat resistance. Another application of tungsten carbide is in armor-piercing ammunition because it is a durable and tough material. In addition, another interesting and avant-garde application of tungsten carbide is in space satellites, because it can resist extreme temperature fluctuations.
Tungsten Carbide Supplier
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The United States urges the U.N. Security Council to impose additional sanctions on North Korea in response to its latest ballistic missile launch, including a ban on tobacco and oil exports to North Korea and a blacklist of the Lazarus hacking group.
The United States circulated the draft to the 15 members of the Security Council this week. It was not immediately clear if or when a vote would take place. A resolution requires nine "yes" votes and no vetoes from Russia, China, France, Britain, or the United States.
Russia and China have already voiced opposition to tightening sanctions in response to Pyongyang's launch of an intercontinental ballistic missile last month -- the first since 2017.
U.S. and South Korean officials and analysts also say there are growing indications that North Korea may soon conduct its first nuclear weapons test since 2017, too.
The U.S. -drafted U.N. resolution would expand the ban on ballistic missile launches to include cruise missiles or "any other delivery system capable of delivering a nuclear weapon."
The deal would halve crude oil exports to North Korea to 2 million barrels a year and refined oil exports to 250,000 barrels a year. The resolution also seeks to ban North Korea's export of "fossil fuels, mineral oils, and their distilled WC powder are estimated to be influenced by international political situation changes.
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