Tungsten filaments drill

 One kind of tungsten carbide drill bit from the drill shank , drill body composition, both the Kekai tungsten electrode welded into one . Shank drill , drill the outer diameter of the body can be consistent , you can also inconsistent, inconsistent welding large diameter end of the cone -shaped bar . The utility model is the use of recycled scrap tungsten filaments drill bits, processed and treated after cutting , to conserve resources , reduce costs , and its strength, hardness and other characteristics are excellent for PCB drilling , to ensure that the use performance and service life .

Carbide - Tungsten Steel & Applications

Tungsten steel is carbide, also known as tungsten carbide rods. Hardness can reach 89 ~ 95HRA, reason, tungsten steel products (commonly tungsten steel watches), with easy to be worn, not afraid of hard annealing, but brittle characteristics.
The main components of carbideKekai tungsten electrode carbide and cobalt, which accounted for 99% of all ingredients and 1% other metals, it is also known as tungsten steel.
Commonly used in high-precision machining, precision cutting tool materials, lathes, impact drill bit, glass cutter head, above the tile cutter, hard afraid of annealing, but brittle. Are rare.
Tungsten steel (alloy) with high hardness, wear resistance, strength and toughness, heat resistance, corrosion resistance and a series of excellent performance, especially its high hardness and wear resistance, even at a temperature of 500 ℃ also remained unchanged, at 1000 ℃ still very high hardness. Carbide is widely used as a material, such as turning, milling, planer, drill, boring knife, for tungsten filament, nonferrous metals, plastics, chemical fiber, graphite, glass, stone and ordinary steel can also be used to cut resistance material difficult to process hot steel, stainless steel, high manganese steel, tool steel. New carbide cutting speed is equal to the number of times the carbon steel.
Tungsten steel (alloy) can be used to make drilling tools, mining tools, drilling tools, measuring tools, wear parts, metal grinding, cylinder liners, precision bearings, nozzles.

Tungsten steel

Steels containing tungsten, such as high-speed steel and some hot work die steel, steel containing Kekai tungsten bar steel hardness and heat resistance have very significant increase, but the toughness will be a sharp decline. The main components of carbide carbide and cobalt, which accounted for 99% of all the ingredients, one percent for other metals, also known as the yo tungsten steel. The main application of tungsten boat carbide resources also, which is tungsten steel. Carbide, known as the modern dental industry, the extent of the use of Gang products is very wide. Tungsten steel sintering the powder is pressed into the blank, and then into the sintering furnace heated to a certain temperature (sintering temperature), and maintain a certain period of time (holding time), and then cooled down to obtain the desired properties of tungsten steel.

Tungsten alloy rod is composed of metal powder

Tungsten alloy rod is composed of metal powder in the order of refining of high temperature, and use special high temperature powder refined but become, such as tungsten alloy rods of thermal expansion coefficient is very low, such cases of thermal conductivity of metal tungsten rod is good material, in the case of high temperature,Kekai tungsten filament alloy rods as a high melting point, low thermal expansion coefficient of the material, the addition of tungsten alloy five elements to improve workability, toughness and welding. Material performance is built on a manufacturing tungsten filaments alloy rods eliminate material handling problems related with other tools. Tungsten alloys are of great value in military and industrial value, is a special kind of strategic materials, are made of metal tungsten rod application and military field, can to a large extent, improve the performance of aircraft, vehicle, but also can play the role of it is that he has a high accuracy, can be its speed is very fast. tungsten ingot rods with their special properties, such as low thermal expansion and good thermal conductivity, enough resistance resistance, high modulus of elasticity. So tungsten rods are widely used in various fields. Such as support of wires, import, printer needle, all kinds of electrodes and Shi Yinglu, filament, high-speed tools, automobile automatic products, sputtering target materials.

TIG welding is often referred to as TIG welding

TIG welding is often referred to as TIG welding, heat is generated between a non-consumable electrode arc welding and working materials ; electrode rods , melting pool , near the arc and working materials are heated by a gas state area protection from the atmosphere is mixed , this protection is provided by supplying a flow of gas or gas mixture , which is usually an inert gas must be able to provide full protection, because even very small amounts of air pollution will be mixed with the weld . TIG Kekai tungsten filament rod is used as the electrode coupled argon protect welding method , the method constituted as shown. Argon welding torch continuously ejected from the nozzle , in the absence of air around the arc protective layer to prevent its tungsten electrode , bath and heat affected zone adjacent to obtain high-quality weld formation . Welding process can be added or without filler wire according to the specific requirements of the workpiece.

Concept of metal tungsten -

Tungsten, a Swedish chemist at the club, in 178 l found when using acid decomposing tungsten acid, but after sixty-seven, people made of pure metal Kekai tungsten & Molybdenum copper molybdenum. Pure tungsten is silvery white metal, only powder or filamentous pot is a gray or black. Electric light bulb will used long black, it is because of the light bulb inside have a layer of tungsten powder. Tungsten is very heavy, 1 cubic meters of copper tungsten weighing 19.1 tons, and almost like gold, so its Swedish original intention, is the meaning of "heavy". Tungsten and very hard, people is to use the hard stone, diamond wire drawing die, the l mm diameter molybdenium diamond hole through more than 20 small down gradually, to put it into a filament one percent only a few millimeters in diameter. A kilo of tungsten ingots can grow up to four hundred kilometers of the filaments. Now, incandescent lamp, tube and even our country in recent years made of novel "iodine tungsten lamp". Are made of tungsten filament. According to statistics, every year all over the world now than incandescent lamp and tube production for billions of! 

The purpose of the tungsten alloy

In order to reduce the used in the field of military material harm to the environment, because of its non-toxic, tungsten wire related products has already been used to replace lead and depleted uranium. The main purpose is to manufacture high performance, high proportion, non-toxic weapons and controllable power behavior. 

Major military use: Kekai tungsten & Molybdenum tungsten weights alloy bullets and shrapnel, the balance of missile flight pinball, armor-piercing core, kinetic energy penetrator, armor and artillery, grenades, rocket parts.