Tungsten Alloy for Ski Balance Weights
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- Category: Tungsten Information
- Published on Friday, 21 June 2013 11:08
- Hits: 2175
The ski balance weights relate to the technological sector of skis and the associated accessories which allow optimum performance to be achieved in all the sporting disciplines of downhill skiing. More particularly, the product relates to an assembly consisting of ski, ski-boot and associated bindings in which one or more weights of variable size are mounted on the ski in order to achieve better balancing of the ski itself and a reduction in the vibrations of its various parts caused by the fact that the pressure stresses acting on the zone of bearing contact of the ski with the snow change continually and very rapidly as regards the intensity and the point of application.
Skis are known where one or more weights are applied in predefined positions.People has realized that the addition of these weights such as tungsten alloy weights may to a certain extent improve the performance of a ski but, not having thoroughly analyzed the physical problem to be solved, leaves it to the user to determine in each case the size of the weights and their location on the basis of his/her personal sensations.
Basically, hitherto, it had been realized only that the addition of tungsten alloy weights to a ski improves its stability and handling, but no precise criterion had been defined as to where these weights may be precisely and effectively located and the magnitude of said weights.
This point coincides substantially with the point of attachment of the ski-boot on the ski and is located inside the zone of the bindings, in an approximately central position.
People have therefore determined that, in order to reduce the vibrations of the two parts of a ski situated "upstream" and "downstream" of the abovementioned point of attachment, it is necessary to reduce to a minimum the magnitude of the masses of these parts which, as a result of the associated moment of inertia, may amplify the vibrations thereof generated during the abovementioned rotational movements and acting both individually and in combination with each other.
People have therefore deduced that the best result can be obtained by applying one or more tungsten alloy weights (preferably only one, as will be seen below) having a weight and location such as to ensure that the centre of gravity of the ski/ski-boot/bindings assembly coincides with the already mentioned point of attachment.
Thus, because of its small volume, heavy weight, tungsten alloy weights become a popular material for the balance weight.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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Thermal Treatment for Tungsten Alloy
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- Category: Tungsten Information
- Published on Thursday, 20 June 2013 18:37
- Hits: 2026
Tungsten alloy properties are sensitive to impurity substances, atmosphere and cooling velocity. Impurity substances such as P, S or others segregating on grain boundary will descend anchoring strength on interface so that descend tungsten alloy properties. Improper control of cooling velocity will produce mesophase or make impurity substances segregate on grain boundary.
So, thermal treatment is necessary for sintered tungsten alloy to improve sintered tungsten alloy properties. Thermal treatment contains quenching, rapid cooling, dehydrogenation in atmosphere and surface hardening. It aims at descending the segregation of impurity substances on interface and hydrogen embrittlement, improving tungsten alloy properties or satisfying the requirements for other properties. Utilizing thermal treatment can eliminate hydrogen embrittlement and phosphorous embrittlement, decreasing the segregation of impurity substances on interface and improving boundary strength of tungsten alloy. That will improve strength and elongation of tungsten alloy.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Tungsten Alloy Cardboard Box
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- Category: Tungsten Information
- Published on Thursday, 20 June 2013 10:28
- Hits: 2059
The type of container used and the safety precautions put in place during transport depend on the type and the amount of nuclear material being transported. For small amounts of nuclear materials which have short half-lives and very low levels of radioactivity, all that is needed is a simple tungsten alloy cardboard box.
For larger amounts of highly radioactive nuclear material such as used nuclear fuel, tungsten alloy cardboard box has been developed capable of remaining intact during and after catastrophic accidents such as being hit by a train (as shown on the right, being in a fire or being submerged in water.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten Picture Center: http://picture.chinatungsten.com
Tungsten Video Center: http://v.chinatungsten.com
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The Comparison Between Lead and Tungsten Alloy in Radiation Shielding
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- Category: Tungsten Information
- Published on Thursday, 20 June 2013 10:47
- Hits: 2057
Density: the density of tungsten alloy radiation shielding is almost 18.6g/cm3 while lead is only 11.34g/cm3, so at the same weights high density heavy alloy can provide the same energy absorption as lead using 1/3 less material. When the weight is certain, more density, and the thickness would be thinner. Tungsten alloy material could be made with thinner thickness but high absorption of radiation in high density. That is why tungsten alloy material is suitable for radiation shielding.
Environmental protection: tungsten alloy radiation shielding is less harmful to our health than lead material of radiation shielding; this is because lead is poisonous and is not good both to our body and the environment, so tungsten alloy is environmental friendly material.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Tungsten Alloy Radiation Cans
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- Category: Tungsten Information
- Published on Thursday, 20 June 2013 10:15
- Hits: 2076
Compared with traditional radiation shielding material, tungsten alloy radiation cans provide higher radiation absorption. The absorptive capacity of the high-density tungsten alloy is three times than that of lead! And lead, the use of high-density tungsten alloy radiation cans also can help you reduce administration costs, because you do not need to obtain special permits.
Tungsten alloy radiation cans are very popular with our daily uses both in medical and industry.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten Picture Center: http://picture.chinatungsten.com
Tungsten Video Center: http://v.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com