Radiation shielding is the use of tungsten alloy to protect against ionizing radiation. Radiation occurs when energy is emitted from one substance and travels out in straight waves, possibly penetrating another substance. When this energy is absorbed, it can have the effect of exciting or destabilizing atoms. If a certain radiation penetrates an animal, it can have harmful impacts on the body, sometimes causing cancer or deformities. Shielding uses specific types of material, such as a leaded glass pane, a lead apron, or packed dirt, to act as a barrier between the body and the source of radiation.

However, compared with other materials, tungsten alloy is the most suitable for radiation protection.As tungsten alloy is the right material for radiation protection, as its combination of radiographic density (more than 60% denser than lead), machinability, good corrosion resistance, high radiation absorption (superior to lead and steel), simplified life cycle and high strength.



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Tungsten makes up a very small portion of the Earth’s crust and is a very scarce metal. Tungsten makes up just a miniscule 1.1 parts per million of the Earth’s crust. Just to get an idea, other elements such as Iron (about 63,000 parts per million) and lead (about 10 parts per million) make up a larger portion of the Earth’s crust. Tungsten’s closest “relatives” in the periodic table are usually considered to be molybdenum and tin, which make up similar parts per million of the Earth’s crust: 1.1. and 2.2 respectively.

Although, it sounds very small in the grand scheme of the parts per million of the Earth’s crust, the Earth’s crust is enormous and therefore there is still plenty of tungsten. However, it is never naturally found as a metal. Tungsten can only be found as a mineral, meaning it is found combined with other elements to form compounds. In fact, there are more than twenty tungsten minerals that can be found in nature, but only two of those are used to extract metal: scheelite and tungsten.

Tungsten is usually associated with a tin ore known as cassiterite that is usually found near granitic rocks. Tungsten is black-brown mineral and is one of the main sources for tungsten, as mentioned above. When found in its natural state, wolframite will contain varying levels of manganese tungstate and also iron tungstate. Depending on the composition of tungsten mineral, it will be called a different name. If the mineral contains more than 80% manganese tunsgstate is known as hubnerite, whereas if the mineral consists of more than 80% iron tungstate it will be known as ferberite.

Whereas tungsten will be found in that black brown color, Scheelite varies in color from white to green. Also, under ultraviolet light, pure scheelite will glow. Unlike wolframite that will have manganese tungstate or iron tungstate, scheelite will consist of calcium tungstate. Whether it is found as tungsten or scheelite, the tungsten metal can eventually be turned into a variety of things, including the tungsten carbide rings that are becoming increasingly popular.



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Tungsten alloy shielding is necessary for plasma accelerator. Primary radiation is accelerated electron. Generally, electron beam which thickness is 1~2mm and shoots to target is focused and energy is also centralized. Primary radiation cannot damage to health when it locates at vacuum of accelerator. But as electron beam which is external application, it may damage to staffs for its high radiation strength.

Bremsstrahlung, caused by high energy electron beam bombarding to target interacts with X-ray, which energy is higher than 10MeV and accelerator parts. The process is called photon-neutron reaction and neutron caused during reaction is secondary radiation. Otherwise, some parts of accelerator may produce X-ray even most of its systems are not working.

Tungsten alloy shielding for plasma accelerator is used to protect staffs from radiation. Depending on heaviest density but small capacity, tungsten alloy material is more and more popular be used for making tungsten alloy shielding to protect body from plasma accelerator radiation. Compared with lead, tungsten alloy is much smaller but with heavier density, which is very helpful for high radiation absorption. It is more than 60% denser than lead, meanwhile, it has excellent machinability, good corrosion resistance. The most important thing is that, tungsten alloy is environment-friendly.



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When clock vibrates, there is an eccentric motion, which is caused by eccentric motor with vibrating components occurs. As the center of the gravity is eccentric, and is not in the rotor of motor, then the clock vibrates. In this case, machinery component with good properties of wear resistant and high specific gravity is required. Tungsten alloy cube is the best material to make tungsten alloy vibrator used in clock.

Tungsten alloy cube is excellent material for making tungsten alloy vibrator. Since the density of tungsten alloy cube is so high and the maximum density should be 18.6g/cm3. Tungsten alloy cube is popular where small component with relatively large mass is needed, for example: the tungsten alloy vibrator used in clock.

Tungsten alloy vibrators in clock are one of our leading products. Compared with other materials, tungsten alloy has the advantages of accurate weight, and non-magnetism. In particular, since a motorized weight usually produces the tungsten alloy vibrators, lighter-weight phones may have weaker vibrating mechanisms.



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