Bulls-eye Baseball tungsten dart rule is a difficult yet fun game that may be played by as many players or teams as wish to play. It is the same game as regular Baseball with a twist to make it more challenging.

The Object: The object is simple: score the most amount of runs each inning, the highest score at the end of the game wins.

The Scoring: The numbers 1 through 9 are written in ascending order on the left side of the scoreboard. All players names are written in batting order across the top (batting order may be determined any way, usually one tungsten dart each at bulls-eye with the closest throwing first and the furthest last). A grid may be drawn around the numbers and the names for easier reading.

The Play: Each player in order throws three tungsten darts at the number of the current inning but must hit a bulls-eye each inning before any runs may be scored that inning. If no bulls-eye is hit, the score for the inning is zero. The target is 1's in the first inning, 2's in the second, etc. Each number only counts in that actual inning. For example, if a 4 is hit in the first inning, it does not count. The thin outer "double" ring counts as two runs, the thin inner "triple" ring counts as three runs with the other sections of that number counting as one run. If more than one bulls-eye is hit the score is multiplied by the number of bulls-eye's hit. Therefore, the highest attainable score in any one inning is twelve (Double-Bulls-eye, Triple-x, Triple-x {where x is the number of the inning} would score 6 for the two triples time 2 bulls-eyes).

The number of runs scored is not multiplied by the inning number. For example, in the second inning, a bulls-eye and two single 2's are hit; that players score would be two for that inning.

Usually a running total is kept with the current inning's score being added to the current total. This way, players can see how far ahead or behind they are and save a lot of time not having to add all nine innings at the end of the game.

If there is a tie at the end of the ninth inning, extra innings are played with bulls-eyes as the target. Extra innings continue until after all players have thrown for that inning and no tie exists.

Strategy: Try to score a lot of runs.

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The flotation of tungsten ore is conducted at a pulp pH of 9.0-10.5. Soda ash, caustic soda, or sodium silicate may be used for alkalinity control.

The other modifying agents required will depend on the gangue minerals to be depressed. Quebracho or tannin is used to depress the calcite, but an excess will also depress tungsten minerals. Sodium dichromate acidified with sulfuric acid has also been reported as a calcite depressant and copper silicate (sodium silicate and copper sulfate) has been reported as a depressant for fluorite. Figure 8 shows a tungsten flotation flowsheet. The most commonly used tungsten collectors are crude oleid acids or tall oils, or the more refined fatty acids or soaps.

Most tungsten flotation concentrates and some table concentrates are not of sufficiently high grade to meet the exacting specifications of the market. The principal diluents are phosphates and carbonates, which are difficult to depress sufficiently in flotation. The removal of these minerals is most frequently accomplished by leaching the concentrates with hydrochloric acid. Because of the relatively simple equipment required, the trend has been toward leaching at the flotation plant. However, a number of custom leaching plants are equipped to treat flotation concentrates from the smaller concentrators.

 

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Here are a few tips to teach you how to minimize the effects of dartitis:

Turn out the lights. When practicing turn off the light pointed on your dartboard. There should be enough light left in the room so you can barely make out the numbers on the board. Now, throw your tungsten darts but instead of concentrating where they land, concentrate on what they look like when they leave your hand. Concentrate on the natural pace of your throw, is it slow and deliberate or quick and powerful. By analyzing how you throw your tungsten darts you can draw on this when you’re on the line and the pressure’s on. The mental picture you have of your throw should help to alleviate the “herky jerky” effects of dartitis.

Opposites attract. Throw with your opposite hand in competitive matches. I know this sounds crazy but if you’re serious about beating dartitis you have to break the psychological barrier with letting go of the tungsten dart. One way to do this is join a competitive tungsten dart league on a lower division team and throw with your opposite hand. You’ll be amazed at how much you can learn from analyzing your opposite throw. By concentrating on improving you’ll be encouraged to try new ideas on your regular throw, and revisit fundamentals you may have over-looked. It will take some time but you should see an improvement in your tungsten dart throw.

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Scheeelite (CaWO₄) is the principal tungsten mineral in domestic ores, but other important tungsten minerals include wolframite (Fe, Mn) WO₄, ferberite (FeWO₄), and hubnerite (MnWO₄). All of these minerals may be floated in a soda ash alkaline pulp with fatty acid type collectors.

Because of the high specific gravity of the tungsten minerals, they are amenable to gravity concentration methods. However, the fine dissemination of the ore minerals in the gangue usually makes fine grinding necessary, and requires at least some flotation concentration for the recovery of the finer sizes. The trend has been toward all-flotation recovery with gravity processes being used only as a means of upgrading a part of the concentrates.

If the ore contains pyrite or other sulfides, a preliminary sulfide flotation stage is usually employed ahead of both tabling and flotation of the tungsten. The low cost and high collecting power of xanthates makes them the favored collector for this sulfide float. Soda ash or sulfuric acid is usually added for pH control. Acid is frequently preferred for those ores containing pyrrhotite. However, its use with calcite gangue ores will result in the formation of calcium sulfate, which may float with and dilute the subsequent tungsten flotation concentrate.



 

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There are thousands of people around the world who suffer from the tungsten dart throwing condition called, dartitis. Although there are many interpretations of this dart throwing condition, Dartitis is the inability of a person to throw fluid and deliberate tungsten darts at the dartboard. While there are many things a tungsten dart player can do to correct this problem, visualization is one of keys to solving this problem. A lot of money has been spent on sports psychology for big money sports like baseball, football and golf. Golf is the closest of these sports to tungsten darts because of the psychology of perfection that is involved in both sports. Putting a golf ball is a results driven activity, just like tungsten darts. The golfer’s version of dartitis is called the yips – when you just can’t seem to get the putter absolutely right so you “yip” in the middle of your swing and ruin your putt. Dartitis is different from golf’s “yip” in that an object actually leaves your hand. So it’s much easier to over-control the tungsten dart. Perfection is a very cruel master, but here are a few tips to teach you how to minimize the effects of dartitis:

Review your throw from another perspective. Have a friend video-tape your throw during a competitive match. Or have him take a bunch of digital photos of you throwing throughout the night. This will give you insight on how your swing breaks down mechanically and can lead to technical ideas on how to correct your case of dartitis. Then take some time to analyze the tape/photos instead of practicing. Create a mental picture of your tungsten dart throw you can recall when you’re on the line to take your mind off the dartitis. Taking some time off to do this “research” will also make sure you aren’t over-throwing and getting physically and emotionally drained. When you’re rested mentally and physically you will shoot much more relaxed and calm at the dart line.

Watch your tungsten dart, not the board. Change your perspective by watching your dart flying through the air and landing in your target. When practicing take 10 minutes to do the following drill: Shake out your arm. Aim at your target. Before you throw, switch your eyes to the tungsten dart in your hand and watch it fly into the board. Don’t worry about where it lands at first. Just get used to how the tungsten dart looks in the air. As you get comfortable you’ll start hitting your targets while looking at the dart. The key to this drill is to recall how your darts looked in the air when you resume throwing normally. It takes the focus off the board and should help to ease the symptoms of dartitis.

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A brief history of the sport of darts from the middle ages to today:

Early beginnings. The popular belief is that darts was created as a result of the boredom of being a warrior in medieval times. During downtime between battles, soldiers would challenge each other to games of throwing short spears at a thin slice of a felled tree. The age rings in the wood and the cracks that developed from drying created a simple likeness of a modern dart board comprised of multiple lines and many different scoring areas. The game became quite popular in the middle ages as it was used to keep soldiers’ throwing arms in practice.

A game for everyone. The sport of darts eventually became more widespread and even noblemen would be known to shoot a round from time to time. In fact, history shows that England’s King Henry VIII was given a set of darts as a gift. The game as we know it was in jeopardy of being changed over the years. People tried many different variations such as using a blowpipe to direct the dart. Some Scandinavians still play a version of darts by throwing foot long small spears from several yards away.

A game that almost never was. As it grew in popularity, the game of darts has defeated multiple attempts to have it banned. Many people believed that darts was a game of chance and not a game of skill, so it had to be settled in a courtroom in 1908. The game was banned in Scotland as a corrupt influence but the public outcry made it short-lived.

The modern game of darts. Today the sport is most popular in Britain where there are millions of players and thousands of registered clubs, however it's quickly becoming an international pastime. The game is popular in the Netherlands, Germany and the Scandinavian countries. In the U.S. hundreds of thousands of dartboards are sold every year and millions of Americans play darts every week.

With more and more people obsessed with dart sport, tungsten is the well-known material to make a perfect dart. Because tungsten darts is high-density and durable, in the mean time, tungsten darts also have fine knurling and worthy of being collective.

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The game of 801 Tungsten Darts is a test of your endurance. It is typically played with four players on one team. You can play it as a single-in, double-out or double-in, double-out. Here are some tips that can help you improve your chances of winning.

Stay focused on the game. With eight people throwing it can be easy to turn your focus away from the board between your throws. Make sure you have taken care of everything before the match, i.e. beer, smokes, bathroom break. Otherwise you run the risk of feeling anxious at the line because you took a break from the competitive atmosphere.

Beat your partners' throws. A fun game within the dart game of 801 is to try to beat the score of your partners who throw ahead of you. It’s a great way to stimulate the team to consistently throw high scores. Another idea is for each player to kick in one dollar before the 801 game starts and the person who shot the highest score wins the pot at the end of the match.

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Either tungsten carbide hollow atomizing nozzle, solid atomizing nozzle or fan-shaped nozzle, their basic principle is similar, which spraying taper angle starts in end face and enlarge horizontal size by the increasing axial distance. It has a great amount of nozzle that widely used in combustion equipments for cleaning, coating and lubricating in order to achieve the uniform distribution. Therefore, we should arrange tungsten carbide nozzle appropriately in case of improper atomizing distribution.

Theoretically, it is reasonable that arrange the distance of nozzle in accordance with annular and string-like under the equal condition, which contains spraying taper angle, atomizing quality, the flow and volume flux (the sample fluid volume pass through the detected area in unit time). However, the practical application is different from the theoretical data.














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In addition, some experts expanding the length of nozzle to reduce the collision between grinding compound and inner wall of nozzle, which separates the core and the body and decreases the cost. There is a kind of structure design by American scholar, which is composed of penetrable stainless steel. What’s more, lubricant can pass through the media to adhere to inner wall of nozzle and build an oil slick layer after pressured. The oil slick layer will be supplemented by the pressure differential effect constantly after the erosion and shear of the grinding compound, which repairs the parts of erosion and shear wear and improves the concentration of beam of jet flow.

















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At the present, the most widely used aspect ratio is 2:5. The experts design some unique structure nozzle to reduce the abrasion, such as tungsten carbide streamline nozzle with an arc entrance, tungsten carbide arc nozzle and tungsten carbide equal transmission nozzle. However, their processing is complicated and cost too much. A new style tungsten carbide nozzle, which take advantage of a step with angle to gather the most of grinding compound in center, which slow it down and reduce the abrasion in the area.

















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