Applications of 3D Printing Technique in Aviation Industry
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- Category: Tungsten Information
- Published on Thursday, 06 June 2013 09:45
- Hits: 2169
Put powder raw materials into printer and then you can produce whatever you need such as toys, models, faking artifact, automobile components and even human organs by the influences of laser. The technique is called as 3D printing technique which is popular around the wo
rld and being consider as “ improving the realization of the third Industrial Revolution” by The British Economist.
Generally, people always consider that the U.S. is leading the industrial revolution. However, some news coming from China is shocking.
Those news shows that China has become the only nation which has hold lasing forming manufacturing technique of main bearing refractory metal parts and put the technique into application. By using 3D printing technique of refractory metal aircraft parts, it is the first time that China becomes the forefront of advanced level around the world in aerial materials industry.
Contributors for blowout of Chinese advanced fighters
Recently, in China Beijing international high-tech Expo, AVIC (Aviation Industry Corporation of China) and Beijing University of Aeronautics & Astronautics shows the whole aircraft key refractory metal aircraft parts which are being manufactured by 3D printing technique and rewarded for the first prize of State Technological Invention Award, and a 5m2 strengthen frame.
The foreign medium report that 3D printing technique is being widely used for the development of J-15 the first Chinese carrier aircraft, J-16 multirole combat aircraft, J-20 the fifth generation heavy fighters, J-31 the fifth generation medium fighters and C919 civil aircraft.
News Channel of CCTV reports that the main bearing refractory metal aircraft parts, being manufactured by 3D printing technique have been widely used for J-15, including the whole former landing chassis.
The application of 3D printing technique speeds up the development of Chinese advanced fighters. Relying on low cost and high speed of laser refractory metal aircraft parts forming technique, Shenyang Aircraft Corporation can assemble J-15, J-16, J-31 and other fighters and test flight in a year.
By adopting 3D printing technique, refractory metal aircraft parts which have complicated or special structure can take shape once without forging one by one and welding together, high improving the strength of fuselage.
According to the estimate, if refractory metal aircraft parts in F-22 are manufactured by Chinese 3D printing technique, the weight will decrease by 40% under the same strength. That will highly improve the thrust weight ratio and the properties of fighters.
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What's Tungsten Alloy Fishing Sinkers?
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- Category: Tungsten Information
- Published on Friday, 31 May 2013 18:17
- Hits: 2143
Tungsten alloy fishing sinkers are large proportion (> 18g/cc), small size. They are against strong wind, light into the water, sinking fast, and are the best alternative to lead sinkers. The fishing sinkers are best-selling in Europe, the United States and other developed countries.
Advantages of tungsten alloy fishing sinkers:
1. Small volume
High density make tungsten alloy fishing sinkers/weights smaller than the conventional lead fishing weights. It will be hung up far less with a tungsten sinker than with a lead sinker because of its smaller size.
2. Hard
It's harder than lead fishing weight. It will not be stuck in the jowl of the fish. So the shape will be maintained longer.
3. Strong wind resistance
As the high density of tungsten, the tungsten alloy fishing sinker makes your fishing easier. It is extremely sensitive and can actually help you “feel” what the bottom is made of and what your bait is bumping into, such as brush, rocks, mud, etc.Tungsten fishing weights/eyes are an ideal, environment-friendly alternative to lead weights, which are toxic and increasingly being labeled an environmental hazard.
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Tungsten Nuclear Radiation Shielding
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- Category: Tungsten Information
- Published on Friday, 31 May 2013 17:38
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Tungsten nuclear radiation shielding can be broadly classified into three categories. These three categories are labeled with the first three letters of the Greek alphabet: α(alpha), β (beta) and γ (gamma). Alpha radiation consists of a stream of fast-moving helium nuclei (two protons and two neutrons). As such, an alpha particle is relatively heavy and carries two positive electrical charges. Beta radiation consists of fast-moving electrons or positron (an antimatter electron). A beta particle is much lighter than an alpha, and carries one unit of charge. Gamma radiation consists of photons, which are without mass and carry no charge. X-rays are also photons, but carry less energy than gammas. Some materials absorb beta rays. You can measure this absorption by fixing beta source and a radiation monitor so their positions do not change.
Tungsten heavy alloy has high absorption rate on X rays and gamma rays. Tungsten is 60% better than lead in shielding against X rays and gamma radiation therefore; it can be significantly reduced in size.
Tungsten nuclear radiation shielding also has another characteristic, very high melting point. By this, tungsten alloy nuclear radiation shielding can be used in high temperature which can not be used with lead, for example nuclear scrap container.
Due to its unique characteristics, people use tungsten alloy nuclear radiation shielding in medicine, tungsten nuclear radiation shielding, such as collimator, tungsten alloy nuclear radiation shielding, beamline, PET syringe shield, vial shield, tungsten alloy nuclear radiation shielding is used to protect workers from the radioactive sources of the scanner used in security and aerodrome, coach stop, etc. Tungsten alloy nuclear radiation shielding is also used in the equipment of industrial radiography, pipe-line inspection (collimator or tungsten nuclear radiation shielding).
Fish Shape Tungsten Alloy Jigs
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- Category: Tungsten Information
- Published on Friday, 31 May 2013 17:47
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Fish shape tungsten alloy jigs, the most technologically advanced weight available today, are standard in the industry and have been worked into almost every famous pattern available on the market.
Fish shape tungsten alloy jigs provide a more environmentally friendly alternative to lead. Comprised of tungsten, the second hardest substance next to diamonds, fish shape tungsten alloy jigs do not add pollutants to water. Fish shape tungsten alloy jigs are 25 percent smaller, much more sensitive and emit twice the sound of lead, they pick up bottom compositions much better than lead or brass weights, their sensitivity gives you the ability to better define under water structure.
Fish shape tungsten alloy jigs with shape of fish are used not only to provoke the big fish to bite, but also to force the fly to sink the bottom because of the tungsten material which is about three times heavier than lead.
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Tungsten Alloy in Computer
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- Category: Tungsten Information
- Published on Friday, 31 May 2013 17:26
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The properties of tungsten alloy:
As is known to all, tungsten alloy has so many advantages, such as high density, small volume, excellent hardness, superior wearing resistance, high ultimate tensile strength, high ductility, high temperature resistance, high radiation adsorption capability, etc. so most of the components in computers are used tungsten alloy as the material.
The advantages of tungsten alloy used in computer:
Tungsten alloy in computer used the property of high radiation of the tungsten alloy. The computers are widely used in our lives, we can not survive without computers. The radiation from the computers is very harmful to our body. Tungsten alloys is a best choices for radiation shielding applications, especially in computers. Compared to traditional radiation shielding materials, tungsten alloys radiation shield provide excellent value.
A high-density alloy can provide the same energy absorption as lead using 1/3 less material. People are taking advantage of tungsten alloy’s reliable radiation shielding properties to make screen of the computers, in this way, our eyes can not be so tired when using computers for a long time and it is also good to our health. Tungsten alloy radiation shield give you best protection from the harmful radiation. Meet to the AMS 21014 and ASTM B777 material standard, we can offer tungsten alloy radiation shields with finished machining by CNC according to clients drawings. Compared to traditional radiation shielding materials such as lead and boron carbide, tungsten alloys provide excellent density with small capacity. Tungsten alloy material could be made with thinner thickness but high absorption of radiation in high density. That is why most manufactures choose tungsten alloy as the material for computers.
High temperature resistance is another advantage to use tungsten alloy in computer. After a long time using of computer, it produce a lot of heat, which is result in the slow of speed, tungsten alloy can resistant the problems.
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