Tungsten carbide buttons are widely applied in geological prospecting, coal mining and oil well boring. Because of its high wear resistance, high bending strength and high hardness, tungsten carbide button is ideally suited for wear parts, other machine parts and dies which are subject to severe service conditions, such as high temperatures, corrosion and abrasion.

Below are the properties of tungsten carbide button in different grade.
 

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Tungsten carbide buttons are widely applied in geological prospecting, coal mining and oil well boring. Because of its wear resistance and hardness, tungsten carbide button is ideally suited for wear parts, other machine parts and dies which are subject to severe service conditions, such as high temperatures, corrosion and abrasion. In recent years, tungsten carbide button has emerged as a superior alternative to steel in many industrial applications.

Most of this tungsten carbide wear parts and the mining tools are made of straight WC-Co hard metals without any addition of other carbides. Fine and ultra fine grained tungsten carbide rod buttons have become more and more important today in the field of wear parts, cutting tools for cast iron, non ferrous alloys and wood.

A large portion of the tungsten volume in cemented carbide is today used in wear part applications, where there is a wide range of products from the very small (such as balls for ball-point pens) to large and heavy products, such as punches, dies or hot rolls for rolling mills in the steel industry.


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Tungsten carbide products, one of the most hard materials in the world, are often used as cutting tools, mining tools for drilling mineral, oil-exploring, crushing or grinding rocks, they are also made as the tips brazed into saw blade, drill bits to cutting wood and plastic. In short, tungsten carbide is widely used in the fields of aerospace, semi-conductor, defense, petroleum-chemistry, mining, metallurgy, machinery and medical industries.

Tungsten carbide buttons as its unique performance are widely application for oil filed drilling. According to the different oil-field drilling machinery such as Roller Cone Bits, DTH Bits, Geotechnical Drilling Tools, Drifter Bits, button been divided into different standard styles : P type flat-top bits, Z type coin spherical bits, X type wedge bits.

Tungsten carbide button is used in the coal cutter drilling tools, mine machinery tools and road maintenance tools. It is also widely applied for rock tools, mining tools for use in quarrying, mining, tunneling, and civil constructions. 


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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In order to increase the life of the bit, to increase the rate of penetration and to decrease drilling cost, a new type of  tungsten carbide diamond-enhanced composite button with high abrasive resistance and high toughness against impact, which may be used in percussion drilling, has been developed. The key problems in making the button are to improve the thermal stability of the diamond, increase the welding strength between the diamond and the cemented tungsten carbide, and reduce the sintering temperature of the tungsten carbide. All these problems have been solved effectively by pretreatment of the diamond, low temperature activation hot-press sintering.

The properties of the button have been determined under laboratory conditions. The test results show that its hardness is more than 86 HRA, its abrasiveness resistance is 100 times more than that of conventional cemented tungsten carbide. All these data theoretically that show the diamond enhanced tungsten carbide button has very good mechanical properties that can meet the needs of percussion drilling, and can solve the problems encountered with button bits of conventional cemented tungsten carbide.


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Tungsten carbide button is also called cemented carbide button. It has many advantages like good wearing resistance, high abrasion resistance, high corrosion resistance, high tenacity, high temperature resistance, high hardness and high density. It is also the most suitable for hard rock. Tungsten carbide buttons are widely applied in geological prospecting, coal mining and oil well boring. Because of its wear resistance and hardness, tungsten carbide button is ideally suited for wear parts, other machine parts and dies which are subject to severe service conditions, such as high temperatures, corrosion and abrasion. In recent years, tungsten carbide has emerged as a superior alternative to steel in many industrial applications.

Tungsten carbide buttons could mine quarrying coal-cutting, road construction, snow plow etc. It is fitting for serving as drill heads of heavy rock-digging machines, plum heads are used in deep hole drilling terrace vehicles. 


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten alloys and finished component parts are used in a variety of diagnostic and therapeutic medical technologies. High-density alloys for multileaf collimators are used to comprise the individual leaves, which can move independently in and out of the path of a particle beam.

The density and strength of tungsten alloys make them the first choice for multileaf collimator applications. Their energy-absorbing qualities are excellent choices to protect sensitive electronic equipment, as well as delicate human tissue. Tungsten alloys are used for radioactive source containers, gamma radiography, syringe shields, oncology treatment systems and oncology instruments. Tungsten alloys provide unsurpassed strength, control and environmental protection.

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The tungsten micro multileaf collimator (mMLC), is unique in having four sets of leaves, instead of the conventional two. Tungsten micro multileaf collimator has cross-leaves with 96 tungsten alloy leaves in 4 banks.

The advantages of 4-bank tungsten multileaf collimator:

Fast tracking: for parallel tungsten alloy leaves, aperture motion is determined by the time required to cover/uncover target edges parallel to leaf motion and by leaf speed. Since there aren't any such target edges for cross leaf - aperture formation, time is consequently several times faster than that of a parallel tungsten leaf collimator. In addition, cross tungsten alloy leaves smaller weight and lower friction enable higher leaf speed and reliability then conventional mMLCs.

Improved conformity: Cross tungsten leaf conforms better to complicated targets (e.g., doubly concave) and eliminates collimator rotation. Conformity is significantly improved even for a regular shape.

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Tungsten carbide roughing end mills refer to the cutting tools with a wavy cutting teeth at the business end, and on the sides, which are the most popular tools for quickly removing large amounts of materials in a vertical mill.

By adopting this end mill in machining, the work pieces will finish with rough surface, due to the wavy teeth on the periphery of the tungsten carbide roughing end mill create many successive cutting edges generating lots of tiny chips.During cutting, multiple teeth are in contact with the workpiece reducing chatter and vibration. Rapid stock removal with heavy milling cuts is sometimes called hogging. Specially, roughing end mills are also known as ripping cutters.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten oxide has good physical and chemical properties, so it can be widely applied in many different fields. Its ultra-fine powder has a strong absorptive capacity of the electromagnetic wave, so it can apply in solar energy field which can be an absorbing material, and in the military field it is an important stealth material. And tungsten oxide has a special catalytic properties in the fuel cell can be used as the anode electrode catalytic materials, as well as can be low-temperature superconducting materials, but also often doped with TiO₂ as a photocatalyst and so on. Tungsten oxide film based on tungsten oxide powder material having a broader application, it can transform it presents color when giving appropriate optical radiation or using electric field. And this is photochromic or electrochromic. And at present these technologies are widely used in electrochromic windows, large information displays, and automotive mirrors and so on. Meanwhile tungsten oxide for NO_X, H₂S, NH and other gases are highly sensitive, so as a sensitive material of the sensor can be used for detection of food, medicines, and other exhaust. Tungsten oxide active apply in different fields, so the study of the tungsten oxide still continue to carry out, and it has also become one of the most potential for development of materials.

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With the rapid economic development, national defense, transportation and other industries are gradually increasing their demand for high-performance anti-shock non-sag tungsten wire (not easy to sag and difficult algorithm of fault). How to prepare the production process based on the common non-sag tungsten wire on a high resistance to high temperature with good non-sag properties and seismic performance of sag tungsten wire? Sag tungsten powder metallurgy preparation stage has a critical effect on the temperature and anti-shock resistance of tungsten wire:

At 85% frequency current slow, heating with a two-stage sintering to obtain a sintered tungsten bar of external dimensions of 15 × 15 × 400mm, the density of 17.2g / cm3, grain size 7 to 8, the bar which have excellent high temperature performance and a good workability and resistance to shock cobalt-doped tungsten, of course, preferably slow heating temperature is best. Mechanism of cobalt tungsten improve the seismic performance of tungsten and cobalt-doped billet in the process of plastic working (swaging, stretching) changes of microstructure and properties were studied,  cobalt can improve K to penetrate the metal tungsten matrix is ​​reduced tungsten grains oxygen content, improve the seismic performance of the tungsten wire; tungsten wire with plastic processing depth increased density, tensile strength and work hardening increase, was with the processing of high-yield, high-temperature tungsten good performance.

 

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