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tungsten    音标拼音: [t'ʌŋstən]
n. 钨,钨锰铁矿,金属元素

钨,钨锰铁矿,金属元素

tungsten
n 1: a heavy grey-white metallic element; the pure form is used
mainly in electrical applications; it is found in several
ores including wolframite and scheelite [synonym: {tungsten},
{wolfram}, {W}, {atomic number 74}]

Tungsten \Tung"sten\ (t[u^]ng"st[e^]n), n. [Sw. tungsten (cf.
Dan. tungsteen, G. tungstein); tung heavy (akin to Dan. tung,
Icel. [thorn]ungr) sten stone. See {Stone}.]
1. (Chem.) A rare element of the chromium group found in
certain minerals, as wolfram and scheelite, and isolated
as a heavy steel-gray metal which is very hard and
infusible. It has both acid and basic properties. When
alloyed in small quantities with steel, it greatly
increases its hardness. Symbol W (Wolframium). Atomic
weight, 183.6. Specific gravity, 18.
[1913 Webster]

2. (Min.) Scheelite, or calcium tungstate. [Obs.]
[1913 Webster]

{Tungsten ocher}, or {Tungstic ocher} (Min.), tungstite.
[1913 Webster]


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  • Tungsten guide rod weights?? - Snipers Hide
    The stainless guide rod you can tell a difference compared to stock a fair amount on the 43x and a little on the 48 Then tried a tungsten couldn’t tell a difference in it and stainless The tungsten is over 2x the money I weighed them both the tungsten was only a couple grams heavier than the stainless
  • Why no high-density tungsten bullets? | Snipers Hide Forum
    IANAL but tungsten cores machined to a point would almost certainly qualify as armor piercing and be subject to existing restrictions on manufacture However bullets with tungsten powder cores or solid-slug cores (i e , a flat-faced tungsten cylinder) should not pose a risk of such classification or regulation
  • Firearms Glock 20 gen 5 10mm KKM barrel and heavy tungsten guide rod
    I have a basically new (under 40 rounds fired) kkm 4 6 barrel It fits the factory Glock slide I also have heavy pure tungsten guide rod with the uncaptured 20 lb spring from the Glock store I want $125 for the barrel and $100 for the spring Will also throw in a gunfighters inc Kenia chest holster for free if interested
  • Its Elemental - The Element Tungsten
    Tungsten is alloyed with steel to form tough metals that are stable at high temperatures Tungsten-steel alloys are used to make such things as high speed cutting tools and rocket engine nozzles Tungsten carbide (WC) is an extremely hard tungsten compound It is used in the tips of drill bits, high speed cutting tools and in mining machinery
  • Its Elemental - The Element Tungsten
    The Element Tungsten - Known Isotopes Most of the isotope data on this site has been obtained from the National Nuclear Data Center
  • High School Research at Jefferson Lab
    The aluminum film samples were deposited on glass slides by thermal evaporation in a vacuum chamber, at an evaporation rate of about 0 5 angstroms second The films were evaporated by heating aluminum wire in a tungsten filament; once the aluminum evaporated, it rose to the top of the deposition chamber and formed a film on the glass substrate
  • 4 mm tungsten projectile sabot | Snipers Hide Forum
    Re: 4 mm tungsten projectile sabot Between 2000 and 2003 I shot linked 7 62 Sabot out of our mini-guns It was advertised to penetrate 3 4" of homogenous rolled armor That said, we stopped shooting it due to barrel fouling and the sabot sleeve separating and contacting rotor blades So long story longer, they are out there
  • Its Elemental - The Element Molybdenum - Thomas Jefferson National . . .
    These ores typically occur in conjunction with ores of tin and tungsten Molybdenum is also obtained as a byproduct of mining and processing tungsten and copper Molybdenum has a high melting point and is used to make the electrodes of electrically heated glass furnaces Some electrical filaments are also made from molybdenum
  • Accessories Foundation Weight Kit - HEAVY Tungsten - Snipers Hide
    This is 97% pure tungsten, ASTM certified MT-185, 18 5g per CC, heavier and more expensive than other partial tungsten alloys A kit includes 22 cylinders, 0 665" in diameter, 0 80" long I measured the specs to fit my Genesis MG2 stock
  • Its Elemental - The Element Rhenium
    Rhenium is used in flash lamps for photography and for filaments in mass spectrographs and ion gages, but is most frequently used as an alloying agent in tungsten and molybdenum and as a catalyst for performing certain reactions to a type of hydrocarbon known as an olefin





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