Tungsten Military Parts Price

Description of Tungsten Bucking Bar

Details: Category: Tungsten Information; Published on Monday, 09 February 2015 09:45; Written by Sherry; Hits: 567

Bucking bar is a work tool received behind work surfaces to provide a backing member in applying impact fasteners and including intermitted toolhead and handle parts with a low-recoil impact-absorbing spacer provided there between to take shock loads.

Bucking bars are used on the backside of a metal rivet to counter the force of the hammering on the other side. They also can be used to absorb the force of rivet guns, reducing the vibration of bucking.

Bucking bars used to form bucktails on rivets. And come in many different shapes and sizes. They are normally made from an alloy steel similar to tool steel. The particular shape to be used depends upon the location and accessibility of the rivet to be driven.

The size and weight of the bar depend on the size and alloy of the rivet to be driven. Under certain circumstances, and for specific rivet installations, specially designed bucking bars are manufactured locally

Tungsten Heavy Alloy bucking bars are resulting in a bucking bar of the same weight but half the size. Bucking bars are used in rivet setting to upset the shank of the rivet. Tungsten Heavy Alloy bucking bars reduce the recoil when reflecting the impact back to the rivet shaft.

Higher density reduces vibration and kick back while bucking. Take a cue from the pros and use what they use. We carry a full line of standard bars and can custom build bars to your specifications. All bars have smooth faces and rounded edges and corners for ease and safety in handling.
Contact us for more information about tungsten heavy alloy bucking bars! Any orders or inquires will be greatly welcomed!

According to the investigation for different bucking bars of the same shape but different materials and mass characteristics, use of heavier but same sized tungsten bucking bars can reduce vibration transmission to the hand.

In a word, tungsten bucking bars are VERY useful for bucking rivets and will make your life much easier in the build process.

tungsten-bucking-bar

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Yellow Tungsten Oxide Chemical Property

Details: Category: Tungsten Information; Published on Friday, 06 February 2015 17:19; Written by cq; Hits: 1573

Chemical Formula：WO3
Molecular weight: 231.85

Density: 7.16 g/cm3

Tungsten outer electron configurations: sd46s

melting point: 1473 ℃
Solubility: insoluble in water, insoluble in acid, slightly soluble in HF, soluble in hot alkali, ammonia

Hazardous characteristics: violently reacts with halogen compounds such as bromine pentafluoride, chlorine trifluoride
Hazardous combustion products: harmful toxic fumes

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Yellow Tungsten Oxide Physical Property

Details: Category: Tungsten Information; Published on Friday, 06 February 2015 17:05; Written by cq; Hits: 1552

Tungsten outer electron configurations is sd46s, thus, five kinds of valence (+ 2, + 3, + 4, + 5 + 6) can present in the compounds. The valence of W in WO3 is highest in tungsten oxide. Usually the oxygen content of WO3 does not meet the strict stoichiometric ratio, it represented in the form of WO3-x.

WO3 formula is quite simple, but its physical properties is very complex.The melting point of WO3 reported in literature is 1473 ℃, but in 1100 ℃ WO3 starts sublimation, sublimation heat is 459.8 kJ/mol. Strictly meet the stoichiometric ratio of tungsten trioxide and without any impurities, WO3 should be transparent insulation. The forbidden band width is about 2.9 eV at room temperature.The WO3-x show n type semiconductor behavior, and forbidden band width is 2.4~2.8eV. Due to the phase change of the structure of WO3, with the change of temperature, resistivity of WO3 will appear jump phenomenon, its resistivity is commonly in 0.3~10 Ω·cm.

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Tungsten Trioxide Films

Details: Category: Tungsten Information; Published on Friday, 06 February 2015 17:09; Written by cq; Hits: 1688

Tungsten trioxide films have been shown to have applications as the sensing element in gas sensors. One of the most important part of the gas sensor is gas sensitive element. The sensor's sensitivity, selectivity, to a large extent dependent, depends on the performance of gas sensitive element. The general gas sensor is thin film material. Study on tungsten trioxide films began 20 years ago, most is on the electrically induced discoloration, photochromic, electrochemistry and gas sensor performance. For hydrogen sensor, tungsten trioxide films have enormous potential. When tungsten trioxide contacts with hydrogen, the most change is the film colour from transparent to blue. At the same time, changes have taken place in film measured by optical instruments. So tungsten trioxide films are good hydrogen sensitive materials. After doping of rare metal, such as platinum and palladium, hydrogen sensitive properties of tungsten trioxide films can greatly improve. Tungsten trioxide films not only can be used for hydrogen sensor, after doping different elements in different conditions, can also be used for other gases sensitive materials, such as NH4, NO2, H2S, O3 and O2.

Tungsten trioxide films material is a kind of wide application of functional materials, has the very broad application prospects. This material can be used in electrically induced discoloration electrochromics, smart Windows, etc. In different field of application of the film materials have different requirements.

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Throwing Dart Tips

Details: Category: Tungsten Information; Published on Friday, 06 February 2015 17:02; Written by xsh; Hits: 550

There are a number of basics to keep in-mind when you start throw dart. A steady Stance is very important. Don't lean way over the line to get closer to the board. This one is a tough habit for some people to beat, but to try, as leaning robs the darter of stability. The feet and legs should be positioned in a solid, comfortable, and relaxed stance, with weight distributed to both feet. Excessive leaning places nearly all of the body weight on one foot, tiring the shooter in long matches and damaging accuracy in the short run.

The few inches gained by leaning over the line are simply not worth the huge loss of balance and stability. Plus, leaning lowers the shoulder, forcing one to throw upwards, fighting gravity. Leaning also usually means tensing the major muscles of the body to preserve balance. This often results in a jerky release and poor follow-through, since the body is already off-balance.

A number of long-time players report back, knee, ankle, and foot pain, from spending many years standing on one foot while playing darts. Even in the short run, leaning to throw will cause minor pain in the small of the back. Especially for older players, a firm stance will stop this discomfort.

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