Tungsten carbide button bit is also called cemented carbide button bit. It has many advantages like good wearing resistance, high abrasion resistance, high corrosion resistance, high tenacity, high temperature resistance, high hardness and high density. Tungsten carbide button bits have a thin metal blade or disk with a sharp, usually toothed edge. Tungsten carbide button bits are used for cutting wood, metal, or other hard materials. They can be hand-operated or power-driven. Tungsten carbide button bits are used in surface processing of cast irons, nonferrous metal and alloys, as well as nonmetal materials for hard metal, carbide rough turn, rough planning, and precision milling.

Tungsten carbide road digging button bits are used to mining the road. It can be used to reduce wear on rubbing surfaces found in roller cone drill bits, diamond bits, down-hole stabilizers, and numerous other applications.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

Wear phenomena on tungsten carbide buttons tested in percussive drilling of Kiruna-magnetite under realistic conditions have been studied with scanning electron microscopy, light optical microscopy and energy dispersive X-ray spectroscopy. In addition, a comprehensive literature study has been performed. The aim has been to chart wear phenomena, such as crack formation, occurrence of reptile skin and various wear mechanisms.

It is shown that surface cracks form shortly after drilling has started. Also the valleys and plateaus characterizing the reptile skin pattern were found after only short drilling periods. It appears that the formation of the initial surface cracks and the reptile skin pattern are separate mechanisms, which presumably interact. In addition to the formation of cracks, there is also a continuous wear of the buttons. This is assumed to be caused by wear fracturing and pullout of tungsten carbide (WC) grains or wearing of cobalt (Co) by abrasion.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

In U.S. Pat. No. 4,743,515, tungsten carbide buttons are disclosed with a core of finely and evenly distributed eta-phase embedded in the normal alpha+beta-phase structure, and a surrounding surface zone of only alpha+beta-phase. (alpha=tungsten carbide, beta=metal binder, e.g., Co, and eta=M₆ C, M₁₂ C and other carbides, e.g., Co₃ W₃ C). In the inner part of the surface zone situated close to the core of that body, the Co-content is higher than the nominal content of Co. The Co-content in the outermost part of the surface zone is lower than the nominal and increases in the direction towards the core up to a maximum usually at the eta-phase core.

Tungsten carbide button for rock drilling comprises a core and a surface zone surrounding the core whereby both the surface zone and the core contains WC (alpha-phase) and a binder phase based on at least one of Co, Ni, or Fe and the core in addition contains eta-phase. The eta-phase core extends to the very top (working) surface of the button and as a result is obtained longer life and higher drilling rate particularly for rotating crushing drilling, cutting drilling and percussive drilling in soft rocks.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

Tungsten carbide wedge button used primarily as a medium and small-scale tooth carbide buttons for inlay system cone drill and impact drill, drilling in soft and hard rock, but also can be used for other drilling alloy sheet. It has superior wear resistance and toughness, compared with similar products has higher drilling speed.

A variety of models and sizes of tungsten carbide wedge buttons:

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

According to different shapes, tungsten carbide button can be devided into conical button, wedge button, spoon button, and claws button .Different tungsten carbide buttons have different usage.

1.Tungsten carbide conical button. Tungsten carbide conical button is a button which drill point is round. It can be used for manufacturing compacts of roller cone bits with high buttons exposure.

2.Tungsten carbide wedge button. Tungsten carbide wedge button used primarily as a medium and small-scale tooth carbide buttons for inlay system cone drill and impact drill, drilling in soft and hard rock, but also can be used for other drilling alloy sheet.

3.Tungsten carbide spoon button. Tungsten carbide spoon button inserts made ​​for roller cone bit, the way to cutting the broken rock, suitable for high speed drilling of soft rock.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

Tungsten carbide tipped annular cutter is a suitable solution for a wide range of possible applications, it is combined extreme hardness and durability, and its material is harder than the most of material to be drilled.  



There are various available sizes of tungsten carbide tipped annular cutters for different applications, generally the diameter varies from 12 mm to 200 mm and larger if required, and among the manufacturers the sizes are differed as well. For the length of the annular cutter, it largely depends on the thickness of the material to be drilled.  The most popular cutter length in the market , including 30 mm, 55 mm, 75 and 110 mm. Annular cutters are also called as core drills because, after drilling hole, the drilled material is ejected from the cutter in the form of a cylindrical blank, this blank is called a core.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

Tungsten carbide tipped core drill is made from tungsten carbide material on its tip. It is known that tungsten carbide is a extreme hard manmade material, since the material price is high, the tungsten carbide tipped core drill is more expensive then HSS core drill, but it has better performance in terms of drilling faster and easier to make bigger holes. Generally, tungsten carbide tipped core drills are cheaper for bigger diameter.


There are different types in tungsten carbide tipped core drills, which are all efficient for cutting hard material. Compared to HSS core drills, the main disadvantage of tungsten carbide tipped core drill is the chances of tip breakage is more . Another shortcoming related to maintenance is the tungsten carbide tipped core drill is not able to reground. Once the its core drill is damaged it has to be thrown away, it can not be reused like the HSS core drills. It is always recommended by manufacturers to use core drills only for larger diameter and for very hard material, while giving priority to HSS core drills because of its price and re-sharpening advantages.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

In 1985,Mikiya Toshio and Shoji Michihiro invented the first tungsten carbide tipped annular cutter.It had been designed as a cutting tool, made from tungsten carbide material on its tip, with multiple cutting edges and hollow body ,combined extreme hardness and durability with a wide range of possible applications in holes making for both ferrous and non-ferrous metals.



Since at the periphery of the hole, the tungsten carbide tipped annular cutter cuts only has an annular groove and leaves a solid core or slug at the hole center, it is an ideal option for lower speed,higher price and less efficient twist drills and hole saws. The function of Annular Cutters is more or less same as a hole saw but differs in geometry and material. Annular cutters are faster, easier and are more accurate than the conventional twist drills or drill bits.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

Using sol-tungsten method produce trioxide film the technology is very mature, and this method also provides the possibility for large-scale preparation of tungsten trioxide films. With further study of this method, at present some researchers using tungsten powder and molybdenum powder as raw material with hydrogen peroxide and acetic acid effect produce original solution of tungsten oxide and molybdenum oxide. These solutions can place for many days without the risk of precipitation. Using X-ray diffraction (XRD) and scanning electron microscopy (SEM) to study the film structures and surface morphology, it found that the obtained film has agood electrochromic properties. Prepared process as follows:
(1) Preparing 10g of tungsten powder and molybdenum powder react with 100ml hydrogen peroxide solution (H2O2 content of 30%) to produce tungsten oxide and molybdenum oxide solution.
(2) preparing ice water so the reaction temperature at 0 ~ 10 ℃.
(3) After precipitation and filtration to give a clear solution, was added 100ml of glacial acetic acid, at 55 ℃ was stirred at reflux for 24 hours.
(4) putting acidified solution at 60 ℃ oven drying, and take some desiccate dissolved in the solution by 1: 3 weight ratio to obtain original solution of tungsten oxide and molybdenum oxide.
(5) with an ultrasonic cleaning ITO substrate soaked in the same amount of tungsten oxide and molybdenum oxide, a while after slowly pull it out and placed in an oven heated to 100 ℃ for 1 hour.
(6) After natural cooling obtaining a film of tungsten and molybdenum oxide.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

Tungsten oxide electrochromic films are widely used in modern society, and therefore improve the application of tungsten trioxide for widely plays an important role. And to improve the tungsten trioxide electrochromic the key point is to short the ions diffusion and transport time in the material. In addition to using the sol-gel method and magnetron sputtering method, with further research there are many methods for produce tungsten trioxide eletrochromic which has greatly improved. Such as using hot filament chemical vapor deposition method produce electrochromic films. Nano crystalline of tungsten trioxide films annealed at 300 ℃ air, the film primarily monoclinic crystal. Crystalline tungsten trioxide compared with conventional amorphous then performance are more stable in a sulfuric acid solution H + cycle and the usage rate can up to 3000 times. And nano tungsten trioxide films have a greater surface area, so the coloring of it will better than conventional amorphous oxide film. And using hydrothermal synthesis method can produce controlled morphology of tungsten trioxide nano particles, and then based on this using drop-casting method to produce tungsten trioxide films. Tungsten trioxide film in the lithium ion electrolyte compare with sulfuric acid solution the H+ will smaller than Li, higher power density, faster response times and greater coloration efficiency.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn