Tungsten trioxide is widely used in modern technology, mainly because tungsten trioxide has good performance. It is mainly used to restore and clacine the production of tungsten powder and tungsten carbide powder, and then used to produce carbide products, such as tools, super hard mold, tungsten rod, tungsten wire, etc., it can be used for X-ray screen and fireproof fabric, and as ceramic colorants and analytical reagent. In the shipbuilding industry, the tungsten trioxide is used as an important anti-corrosion paint and coatings materials. Since tungsten trioxide gets more and more attention in modem life and applications which used widely in the research, such as nano tungsten trioxide, tungsten trioxide films, tungsten trioxide catalyst and so on. We all know that it has played an irreplaceable role in the different areas, and in the future it will be developed more and better.

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Tungsten steel (alloy) with high hardness, wear resistance, strength and toughness, heat resistance, corrosion resistance and a series of excellent performance, the use of tungsten steel tungsten steel pendant while hypoallergenic, resistant to abrasion, etc. Therefore in the current jewelry market, tungsten steel pendant more and more manufacturers and consumers.

Maintenance mode:
You can use warm water and soap mix everyday common items, hand soap and detergent and other cleaning, we need to avoid the use of ammonia, bleach, chlorine and jewelry cleaning solution.

Tungsten steel on the outside with a cloth to wipe pendants, rings can also be directly immersed in the cleaning solution.

Remember to avoid the diamond jewelry together because of higher hardness than diamond tungsten steel, tungsten steel pendant put together words may scratch the surface of the pendant.


Tungsten alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
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Benefits:
High brightness: compared with titanium and ceramic material, the surface can be polished, brighter.

Corrosion: resistant to acid, alkali, salt and perspiration, prolonged use will not rust.

Wear: hardness 8-9 Mohs, wear resistance than those of titanium and ceramics, easy to wear.

Hypoallergenic: Wear safety, hypoallergenic.

Maintenance and cleaning:

Tungsten steel necklace usually have to pay attention to maintenance, you can use warm water and soap mix everyday common items, hand soap and detergent and other cleaning, we need to avoid the use of ammonia, bleach, chlorine and jewelry cleaning solution.

Cotton on the outside of tungsten steel necklace wipe, or other shapes in the groove cleaning with a cotton swab or toothbrush, the ring can also be directly immersed in the cleaning solution.

Remember to avoid the diamond jewelry together because of higher hardness than diamond tungsten steel, tungsten steel necklace put together words may scratch the surface of the necklace.

 

Tungsten alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
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Tungsten carbide milling cutter blade arrangement is divided into two categories: plane structure and vertical structure .
Plane structure eases the processing processes and owns a fine structure, which is suitable for the light milling and medium duty milling. The blade fulfills radial arrangement, Specially the non-hole blade can be reused with a cheap price.



Vertical mounted configuration is easy for rotary, and it can be simply fixed by one screw on the blade slot. However, it has a complicated producing process, required five-axis machining centers for processing . Due to the arrangement , the cutting process can be intensified by the use of cutting forces , save intensify element position , increasing the chip space that is suitable for large depth cutting and heavy duty type milling .




Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten carbide hob is a cutting tool with a series helical carbide teeth used for hobbing during the gear cutting, splines or sprockets cutting processes. It is a special cutter mounted in the milling machine, which can be progressively cut into the workpieces by a series of cuts.A cross section of the cutter's tooth will generate the required shape on the workpiece, once set to the appropriate conditions.

These teeth have grooves that run the length of the hob, which aid in cutting and chip removal. There are also special hobs designed for special gears such as the spline and sprocket gears.



Tungsten carbide hobs show more economical in the long run, although they are more expensive than the steel one, it last longer and can be operated much faster.


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Tungsten carbide milling cutter’s angle of enter could be determined by the position of  centerline relative to the workpiece’s edge. The angle of entry is either negative or positive, when taking the  tungsten carbide milling cutter diameter and the radial width of cut.

When the cutter’s centerline is located on the workpiece, it indicates the angle of entry is negative. This kind of angle is suggested as the the insert contacts the workpiece, instead by its poor cutting edge, but by its strong front rake. For a negative angle of entry producing, the radial width of cut is recommended to exceed the cutter radius. On the contrast, a positive angle of entry would occur if the cutter’s centerline is not located on the workpiece. It happens when the radial width of cut is less than the cutter radius. A positive angle of entry should be avoided because the insert contacts the workpiece by its weakest part—the cutting edge.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten steel bracelet is made of tungsten, nickel, cobalt and other materials by powder metallurgy production process, the surface finish is made simultaneously grinding and other post-processing was obtained. Tungsten / carbide bracelets with high brightness, corrosion resistance, wear and hypoallergenic characteristics, during wear allergy rarely occurs.

Tungsten Bracelet usually have to pay attention to maintenance, you can use warm water and soap mix everyday common items, hand soap and detergent and other cleaning, we need to avoid the use of ammonia, bleach, chlorine and jewelry cleaning solution.

Cotton on the outside of tungsten steel / bracelet wipe, or other shapes in the groove cleaning with a cotton swab or toothbrush, the ring can also be directly immersed in the cleaning solution.

Remember to avoid the diamond jewelry together because of higher hardness than diamond tungsten steel, tungsten steel bracelet placed together words may scratch the surface of the bracelet.

Tungsten carbide hob is a cutting tool with a series helical carbide teeth used for hobbing during the gear cutting, splines or sprockets cutting processes.

The cross-sectional shape of the hob teeth are used with the finished products, which has the same shape as teeth of a rack gear. Some light changes are made, with the consideration of the shape for generating purposes, such as extending the hob's tooth length to create a clearance in the gear's roots.Each hob tooth is relieved on the back side to reduce friction.



Compared to the popular single-thread hobs, but double and triple-thread hobs present ability in increasing production rates. The shortcoming is, when taking accuracy into account , they are poorer than single-thread hobs.Depending on type of gear teeth to be cut, there are custom made hobs and general purpose hobs. Custom made hobs are different from other hobs as they are suited to make gears with modified tooth profile. The tooth profile is modified to add strength and reduce size and gear noise.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Gas-phase method is the direct use of gas or gas by various means into the material, so that the gas generating physical change or chemical change in the conditions of action, the final form of nanoparticles after cooling. Its main process by sublimation, evaporation, decomposition, and make it a saturated steam, control crystallization process of amorphous thin films by appropriate conditions to obtain nano powder. The main method of gas-phase has chemical vapor deposition and physical vapor deposition. Chemical vapor deposition is mainly by the gas through the polycrystalline material into a single crystal, such as chemical transport fat, gas decomposition, and synthesis gas MOCVD method. The physical vapor through the vapor phase method is converted into a single crystal of polycrystalline material, such as sublimation - condensation method, molecular beam epitaxy and cathode sputtering. Fumed can be prepared from the liquid phase method is difficult to obtain the metal carbides, nitrides, borides and other non-oxide ultrafine. At the same time, compared to other methods, nano tungsten trioxide fumed output surface cleaner, clean and easy to control the particle size, the dispersibility of the particles is also good.

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Tungsten dioxide is a kind of tungsten oxide, which is brown, and crystal powder. Its  density is 10.9 ~ 11.1g / cm3, and boiling point 1730℃. The properties are Insoluble in water, alkali solution, hydrochloric acid and dilute sulfuric acid, but it can soluble in H2SO4 as a result of a red salt. Tungsten dioxide can be oxidized to tungsten oxide by high nitrate. Meanwhile, it is very popular in producing tungsten and tungsten trioxide in an inertia gas. When at high temperatures, the dioxide can be reduced to the metal tungsten by H₂. However, in actual industrial production, the dioxide is not existed for its unstable chemical properties. However, it is a intermediate chemical mainly used for manufacturing tungsten trioxide and tungsten powder. Tungsten dioxide should be stored in a cool, dry place and sealed to ensure that the storage room has good ventilation or exhaust. It is not allowed for tungsten dioxide with large quantity to reach water for it is harmful in soluble with water. Therefore, do not waste it without treating and pour into ground, lake and sea. 

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