How X-rays Generate?
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- Category: Tungsten's News
- Published on Friday, 28 November 2014 17:40
- Written by TungstenAlloy
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How X-rays generate becomes a very important topic for researchers, as it will be much helpful for shielding it better.
Laboratory scale sources of X-rays draw a beam of electrons from the cathode of a vacuum tube. The beam is accelerated through several kilo-volts and focussed on to an anode. The anode is usually rotating to provide for efficient distribution and dissipation of heat . The X-rays produced at the impact point are distributed over a wide angular range and cover a wide range of energies up to a maximum energy determined by the voltage at which the tube is operated.
In this way, X rays are generated when electrons undergo severe acceleration. This happen adventitiously in any electronic device that operates at several kilo-volt or more but it is a design feature of synchrotron and rotating anode vacuum tube X-ray generators.
Tungsten alloy material is one kind of suitable shielding for X-ray radiation, as its good radiation absorption ability and high density.
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Tungsten Market feeling of insecurity, prudent business operations
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- Category: Tungsten's News
- Published on Friday, 28 November 2014 14:06
- Written by HJF
- Hits: 1175
Tungsten market: although the current price of tungsten concentrate stabilized, but tungsten steel scrap market is still relatively weak, the downstream prices down, hold stocks hardly strong, prices continued kicked upstairs. This week an agency to waive APT, this would lead to weak demand for tungsten market feeling of insecurity, businesses operate more cautious, rarely traded stock, in addition to the old supply customer orders, APT prices were slightly lower. Sodium tungstate market demand is low, in order to maintain the old smelting long multi-customer oriented, to market ability, and start reducing the number of manufacturers are still slow.
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Sodium tungstate market demand is low, increase the smelter shutdown home
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- Category: Tungsten's News
- Published on Friday, 28 November 2014 14:02
- Written by HJF
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Sodium tungstate market demand is low, smelting and more to keep old customers long mainly to sales quotas and the number of manufacturers are still slow to start reducing sodium tungstate manufacturers offer basically unchanged from last week, 96% concentrated in the 11- mainstream transaction 112,000 yuan / ton.
APT smelter home this week to survive the difficulties, the manufacturers to stop production increase, it is understood, APT acceptance price concentrated in 144,000 yuan / ton, financial difficulties led to the cash price of encroaching upon the 140,000 mark. APT price is still expected to post or slow down.
According to incomplete statistics Ganzhou recently stopped at least three. On the one hand, with the Pan Asia this week, stop and suspend the payment of income, reduce APT market demand and tighter liquidity smelter home; on the other hand the current downstream purchasers are mostly old customers, acceptance of payment to the main, the back section a long time, resulting in cash flow APT smelter home more difficult, low activity.
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Tungsten scrap business mentality pessimistic market outlook bearish expectations
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- Category: Tungsten's News
- Published on Friday, 28 November 2014 14:05
- Written by HJF
- Hits: 1128
At present, although tungsten concentrate market has stabilized, but tungsten steel scrap market is still relatively weak, the downstream prices down, hardly strong hold stocks, the market continued kicked upstairs, the actual receipt of the price may be lower than about 5 yuan offer, the business mentality pessimistic the market outlook bearish expectations, expected short-term price of tungsten scrap will remain more vulnerable to run.
Tungsten steel scrap price low transient stability. Waste tungsten drill mainstream price concentrated in 158-161 yuan / kg, imported blade 150-153 yuan / kg, homemade blade 143-145 yuan / kg, drawing die 152-154 yuan / kg, pure tungsten blocks 167-172 yuan / kg. 70 degrees above the grinding tungsten scrap material 1.4-1.45 yuan / kWh, 50-70 degrees 1.35-1.4 yuan / kWh, 30-40 degrees 1.27-1.32 yuan / kWh, transient stability.
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Near the end, the tungsten market is very quiet trading
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- Category: Tungsten's News
- Published on Thursday, 27 November 2014 14:12
- Written by HJF
- Hits: 1039
Tungsten market: due near the end, tungsten manufacturers operate more cautious, very deserted spot market, the price of tungsten temporary stability maintenance, almost no turnover. Tungsten powder and tungsten carbide prices continue to decline, but with the price gradually falling, businesses are also very price gradually increase the difficulty. Tungsten scrap market last weekend to pick up a little, a slight increase in market transactions, but this week the market's weakness as a powder, sluggish downstream demand, lower scrap tungsten market will purchase again, prices are dropping, short-term market is expected to temporarily difficult to get rid of the weak .
Read more: Near the end, the tungsten market is very quiet trading