Tungsten nickel alloy gravity is generally 17.0 to 18.5, a tungsten-based (about 90 to 98 percent), and add nickel, iron, copper or other elements of the alloy composition. This alloy has good plasticity, machinability, thermal conductivity and electrical conductivity, while the X-rays or γ-rays with excellent absorption capacity. Because of this characteristic tungsten nickel-iron alloy, and it is often used in the manufacture of military blasting ring.

Advantages tungsten nickel-iron alloy military blasting ring are: a large proportion: General accounting for 16.5-18.75g / cm3; 2 high strength: tensile strength of 700-1000Mpa; 3 ray absorption ability: than lead high 30 -40%; 4 thermal coefficient: thermal conductivity of tungsten alloy tool steel is 5 times; five thermal expansion coefficient is small: only 1 / 2-1 / 3 iron or steel.


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New materials, also known as advanced materials, refers to recent research success and being developed has excellent features and functionality to meet the needs of high-tech new materials. The new material is the material basis of military weapons and equipment, the new generation is a key technology in today's world the military field. The military is a new material technology and new materials technology for the military field, is the key to modern sophisticated weaponry. The melting point of tungsten metal in the highest, and its prominent advantage is to bring high-melting material good high temperature strength and corrosion resistance, especially in military weapons manufacturing industry showed excellent properties. In the weapons industry which is mainly used in the production of armor-piercing warhead, the main battle tank has a large aspect ratio penetrators, small and medium-caliber anti-aircraft armor-piercing kinetic energy penetrators and ultra-high speed core material with a bomb.

Tungsten alloy powder pretreatment technology by and large deformation strengthening technology, grain refinement of materials, elongated grain orientation in order to improve the toughness and penetrating power of the material. Our main battle tank developed 125Ⅱ type tungsten penetrator core material for the W-Ni-Fe, using variable density compacts sintering process, the tensile strength of 1200 MPa average performance reached more than 15% elongation, tactical and technical indicators for 2000 m from the breakdown of 600 mm thick homogeneous steel armor.

 

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Adiabatic shear is under high strain rate loading conditions of material deformation and fracture of a special mechanism, adiabatic shear band is the material or component of shear strain highly concentrated narrow area. Adiabatic shear deformation localization in a wide variety of metal suffered explosions, penetration, high-speed collision, such as high-speed cutting and abrasion during deformation, after the pre-tungsten alloy tungsten grain deformation reverse direction with the maximum shear stress direction close to the bomb target impact process in favor of adiabatic shear deformation and shear failure occurs. Therefore, to improve the performance of adiabatic shear tungsten alloy material to enhance the performance of tungsten alloy rod projectile penetration is currently one of the hotspots.

For half a century, tungsten alloy rod bomb adiabatic shear deformation studies, mainly in three aspects: first, starting from the constitutive relation tungsten alloy, establish adiabatic shear deformation localized instability model; second from microstructure, structure starting to explore the microstructural characteristics of the organization and its nucleation and micro factors grew up; third, using computer numerical simulation of the evolution of adiabatic shear band and should stand the strain and temperature fields research.


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Kinetic energy penetrator armor-piercing capability (speed, quality) and artillery material determines their physical properties when the shells hit the target. The kinetic energy depends on the speed and quality at speeds in certain circumstances, be increased to increase the quality of artillery projectile kinetic energy penetrators therefore generally made ​​of high density, hard, high temperature metals. At present the material more widely used is tungsten alloy and depleted uranium, but because depleted uranium has a radiation, so use less.

Promote the progress of science and technology to gradually increase the power of the penetrator. In evaluating the piercing armor-piercing capability, the standard is much more commonly used military homogeneous steel armor piercing mm depth equivalent. In World War II, the most famous German 88MM gun fired projectile can penetrate 200MM homogenous steel armor. Currently, tungsten alloy penetrators German L55120MM caliber tank gun fired homogenous steel armor can breakdown 810MM on the 2000M distance; in China, 99 tanks equipped with a tungsten alloy penetrators 125MM artillery fired on with a 850 mm armor-piercing capability same distance.




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The development of tungsten alloy penetrators materials has made considerable progress on technology, but there are still some drawbacks. So it  need to study tungsten alloy penetrators in depth :

1: Increase research utilization, scientific environmental aspects of the recovery of tungsten alloys. Strengthen missile recycling tungsten alloy and tungsten scrap cuttings and low raw consumption technology research and development.

2: Strengthening research on tungsten alloy penetrators performance and insulation piercing sensitivity aspects. Armor-piercing shells performance is the most important performance indicators tungsten alloy, relatively few studies in this respect, especially playing board study of the mechanism of action is not deep enough, should also strengthen research adiabatic susceptibility tungsten alloy materials.

3: Research to improve air defense missile systems and armor-piercing capability of damage, enhance the tungsten alloy brittle material and wear Bouncing burning complex functional elastomer material.

4: High Strength Composite armor-piercing tungsten is an important development direction of future ultra high-speed kinetic energy penetrators should be further strengthened with ultra high-speed kinetic studies tungsten penetrator projectile beam composite materials, targeted to carry out bomb with a tungsten alloy corrosion protection technology research.


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Fishing beads can be as an attractor or be a component of the rig when you are fishing.

Fishing beads can be made from plastic, brass, lead, tungsten and so on. And they come in many different colors.

There are also luminous beads made of plastic which glow in low light when the water you are fishing has low visibility to attract fish.

However, tungsten alloy fishing bead becomes more and more popular because of its good properties.

Tungsten fishing bead is made from tungsten alloy, so some peple call tungsten alloy fishing bead as tungsten fishing bead.





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Tungsten alloy is excellent material which is used to shield the x-rays and gamma rays . The shield tungsten alloy can be used in the medical field such as shield Brachytherapy and positron emission tomography.

Brachytherapy, also known as in internal exposure. When the human body is difficult to track the tumor tissue ,it can be used to inject (one of brachytherapys ) to replace radiotherapy. Injecting radioactive particles can be accurately placed evenly around the tumor. Before and after treatment, radioactive seeds are stored in tungsten alloy products, so that doctors and patients from harm.

Positron emission tomography (PET) .tracer isotope will be injected to the human body, and brain tissue encounter electrons positron isotope released ,the annihilation effect will occur, resulting in almost the opposite direction of the pair of rays γ- can a special device to be detected, whereby the position of the distribution of the isotope can be obtained, which is a method for diagnostic nuclear medicine techniques. When X-rays illuminate the body structure, PET can show the individual chemical functions of internal organs. PET of DNA to be injected, the injection from the syringe into the patient. As DNA passes through the patient's body, it will release gamma rays, gamma camera lights by chemical activities and internal organs such cells can be seen. Tungsten alloy and tungsten can be applied to PET syringe needle shielding.


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Tungsten alloy gamma shield has high-density , the small physical size, high rigidity and the effectiveness of the shielding characteristics,  therefore it has a strong value.Applications of gamma radiation shield tungsten alloy has two main aspects:

1: medicine. Gamma ray is mainly used in the medical and therapeutic drugs to kill certain types of cancer and tumors, but in this process, the gamma ray will inevitably damage other cells in our body. Therefore, we need to control tungsten gamma shield gamma rays.

2: industry. Geological logging tungsten gamma radiation shield: Geological logging is an exploration technology, mainly for the oil and gas industry. It is also known as wire-line logging and well logging. Gamma ray source, and reduce radiation penetrates well into the formation, and then can be analyzed from these data, to determine the presence of gas or petroleum. Tungsten alloy for shielding radioactive sources, but also used in γ-ray collimator. Gamma rays in the industry, for the detection of internal defects of metal castings and welded structures, industrial radiography, industrial radiography using a gamma-ray detector material, commonly used in metal and concrete structures fault, in this case, we need to tungsten gamma shield γ-rays to protect our body. Pipeline patrol lines and tungsten collimator device also uses a tungsten gamma radiation shield.


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Carbide ( Or rather called Tungsten Carbide and Titanium Carbide) is normal materials which are widely used for any kinds of cutting tools. For example: Saw Blades, Lathe Tools, Drill, Turning and Milling Tools and Dental Bits are always made from Carbide Materials. Carbide is widely used at these tools because carbide's wear-resistant, sharper and useful time is longer than other materials. In additional, carbide balls are also used in pen tips, because it is more wear-resistant.
 
Like tools of tungsten carbide saw blades, its main body is made from Steel. Tungsten Carbide Tips is brazed on the saw blades. Fine-quality tungsten carbide tips is excellent wear-resistant, its useful time can up to 20 times than Steel tips.
 
Tungsten carbide tips has turned in the last, but you can re-grind them just like you grind steel tools, but tungsten carbide tips is harder, so grinding tools is different. Normally, we use diamond tools or tungsten carbide grinding wheels.
 
Most of the whole tools are not made from carbide, because carbide's price is very expensive and it is very brittle. So, steel is better materials which are used for making main body, it is more stronger, not easy to crack and broken.

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The mining industry has one of the highest demands for tools that have high wear-resistant, as working in a mine involves cutting through hard rock, often spanning several miles. Having tools that are resistant to wear means the company doesn’t have to replace their tools often, preventing money lost due to down times. Thus, there is a need for tungsten carbide coating of tools that do not wear out easily, ensuring continued productivity for longer periods of time.

Before the use of these tungsten carbide coating tools, mining was primarily done using pick axes and shovels, to be replaced later on by tools made of steel. Where shovels relied on pure manpower to get the job done, steel tools did a better job, albeit, they were susceptible to wear.

Then came carbide tools. Since tools made of tungsten carbide are tougher and more wear-resistant, these tools are able to perform their job faster and for a longer time when compared to steel tools.

Mining companies are always on the lookout for more abrasion resistant tools beyond the usual tungsten carbide-coated tools. Cemented carbide was developed by combining tungsten carbide, titanium carbide, tantalum carbide, and cobalt. This combination is even harder than regular carbine, while further improving ordinary tungsten carbine’s heat resistance ability.

Diamond may also be added to the tools, as diamond is the toughest material on the planet, which can easily cut through practically any material.

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