Tungsten Dart Billet,Tungsten Dart Price

Aces Tungsten Dart Rule

Details: Category: Tungsten Information; Published on Friday, 31 July 2015 16:31; Written by yingying; Hits: 339

The darts game Aces (also known as Ace) is fun to play with a friend, and the game also help to improve your accuracy.

Aim / Object of the Game: Is for any player/s to hit a specific number (determined by another player) as many times as possible and accumulate as many points as possible in each turn of throwing 3 darts . The amount of games to be played can be determined by the player/s. A good guideline is to play 3 – 5 games where the players determine the numbers to throw for each other, and then both players throw for bull, after which the points are added to see who is the winner.

The scoring works in the following manner:

Single segments   =   1 Point
Double segments   =   2 Points
Treble segments   =   3 Points
Single Bull   =   4 Points
Double Bull   =   6 Points
Playing the Game

Player one: Throws any number on the dartboard with his/her least accurate hand (if you normally throw with your right hand then use your left hand or vice versa). If the player hits the outside number ring or throw out of bounds, that dart must be re-thrown. Let’s assume player one hits the number "13" with the 1st dart, number "20" with the 2nd dart and number "6" with the 3rd dart. Write the numbers 13, 20, 6 and "B" (bull) down (in that order), below the name of player two.

Player two: Does the same. S/he also throws 3 darts at any number/s on the dartboard with his/her least accurate hand. Let’s assume player two hits the number "1" with the 1st dart, number "10" with the 2nd dart and treble "3" with the 3rd dart. Write the numbers 1, 10, 3 and "B" down (in that order), below the name of player one.
Player one: Player one now throws 3 darts at number "13", trying to accumulate as much score as possible. For every single “13” hit s/he will score 1 point, every double "13" hit 2 points, and every treble (trip/le) "13" hit 3 points. After 3 darts, count the score and record the points scored next to the number "13" below the name of player one.

Player two: Player two now throws 3 darts at number "1", trying to accumulate as much score as possible. For every single "1" hit s/he will score 1 point, every double "1" hit 2 points, and every treble (trip/le) "1" hit 3 points. After 3 darts, count the score and record the points scored next to the number "1" below the name of player two.

Player one: Player one will now do the same for the other two numbers, (20 and 6) written below his name. Last but not least player one will throw 3 darts at the Bull but this time, s/he will score 4 points for every single bull hit and 6 points for every double bull (inner bull) hit next to the "B" written below his/her name.

Player two: Will do the same for the other two numbers, (10 and 3) plus the Bull written below his name.

After both players have thrown 3 darts at each of their 3 numbers and the bull,(Player one: 1, 10, 4 and Bull -and- Player two: 13, 20, 6 and Bull ), it is time to count the total points accumulated (scored) to determine who is the winner and the player with the most points is / can be crowned as the winner.

Side Note:

You can vary the game by throwing either 4, 5 or 6 numbers each and then the bull before you count up the total points.

A game can consist of throwing at one or two numbers and then bull, and another one or two numbers then bull. You can change it as you like, decide for yourself what is more fun at that point in time.

tungsten dart game

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How Tungsten Radiation Detector Work

Details: Category: Tungsten Information; Published on Friday, 31 July 2015 14:37; Written by wenjing; Hits: 325

Due to its high density and excellent absorption radiation, tungsten alloy can be used to produced into tungsten radiation detector. Nuclear radiation is not easy to quantify properly. Tungsten radiation detection is always a multi-step, highly indirect process. For example, in a scintillation detector, incident radiation excites a florescence material that de-excites by emitting photons of light. The light is focused onto the photocathode of a photomultiplier tube that triggers an electron avalanche. The electron shower produces an electrical pulse that activates a meter read by the operator. Not surprisingly, the quantitative relationship between the amount of radiation actually emitted and the reading on the meter is a complex function of many factors -- factors that may only be controlled within a laboratory.

Picture below shows tungsten alloy material to produce radiation detector.

tungsten radiation shielding

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Using Impregnation Method To Produce Zirconium Tungstate

Details: Category: Tungsten Information; Published on Friday, 31 July 2015 13:45; Written by xiaoshan; Hits: 324

Using impregnation method to produce zirconium tungstate, there are the producing processes as follow:
1.Taking a amount of ZrOCl2 • 8H20 dissolve in an appropriate amount of deionized water, and then drop ammonia to form hydrogel, to adjust the PH value of 9.0.
2.After place hydrogel at room temperature for 12h suction filtered and then using deionized water washed the precipitate until no chlorine ions. The filter cake was then soaked in ethanol and alcoholization in the oven for 12h, after cooling to room temperature then taken out, filtered to remove residual ethanol, dried at 383K, finely ground to obtain a white powdery zirconium hydroxide carrier.
3. The resulting Zr(OH) 4 precursors are impregnated by the following three ways to obtain catalyst:
(1) Preparation a small amount of ammonium metatungstate solution to soak irconium hydroxide powder with stirring to make them thoroughly mixed, dried and calcined at different temperatures to prepare a catalyst, referred to as WZH(A).
(2)The zirconium hydroxide powder was immersed in ammonium metatungstate solution, dried and distilled off the water at different firing temperatures, to prepare a catalyst referred to as WZH(B).
(3) The processes is similar to(2), but change ammonium metatungstate solution to ammonium tungstate solution, to prepare a catalyst referred to as WZH(C).

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How Tungsten Geiger-Mueller Counter Work

Details: Category: Tungsten Information; Published on Friday, 31 July 2015 14:34; Written by wenjing; Hits: 355

Due to its high density and atomic mass, tungsten alloy exhibits excellent absorption behaviour against electromagnetic radiation such as X-rays and gamma-radiation.A thin layer of tungsten alloy can be used on the inside surface of a cylindrical cathode to give a tungsten Geiger-Mueller counter having high sensitivity and outstanding resistance to the halogen gas. Furthermore, it is surprising and unexpected that the tungsten alloy layer can be applied to the interior of a cylindrical cathode as a thin tungsten alloy foil thus omitting the necessity of electrodepositing the layer on the interior surface.

Tungsten radiation detection and measuring instrument. It consists of a tungsten gas-filled tube containing electrodes, between which there is an electrical voltage, but no current flowing. When ionizing radiation passes through and ionizes the gas within the tube a short, intense pulse of current passes from the negative electrode to the positive electrode and is measured or counted. The number of pulses per secondi an indication of the rate at which ionizing events are occurring within tungsten tube. It was named for Hans Geiger and W. Mueller, who invented it in the 1920s.It is sometimes called simply a Geiger counter or a G-M counter, and is the most commonly used portable radiation instrument.

tungsten radiation shielding material

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Zirconium Tungstate

Details: Category: Tungsten Information; Published on Friday, 31 July 2015 13:43; Written by xiaoshan; Hits: 291

Zirconium tungstate is a green light powder. Chemical formula of zirconium tungstate is ZrW2O8 and the molecular weight is 586.9. Its relativity system numbers are as follows: CAS number: 16853-74-0, MDL number: MFCD00168096, EINECS number: 240-876-3. It is stable at room temperature and atmospheric pressure, but should to avoid the light, flame and heat. Besides, it can be sealed and stored in tight, dry and airy place where away from light. Although ZrW2O8 to water is not harmful, but if there is no relevant government license, the material can not discharged into the surrounding environment. There are many ways for produce zirconium tungstate such as impregnation method, oxide direct synthesis method, co-precipitation method, combustion method, sol-gel method, spray drying method and hydrothermal synthesis method and so on.
Zirconium tungstate as raw materials are mainly used in engineering ceramics, electronic ceramics, metal matrix composites, ceramic matrix composites, cement-based composite materials, the optical devices, dental materials. In addition, because the unique cubic crystal structure of zirconium tungstate it can as the negative thermal expansion material which has been widespread concern.

zirconium tungstate

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