If the sand impacts the inside wall with a larger angle, whose hardness is lower than nozzle material, the surface of nozzle will be out of shape. And the water flow will harden the surface, which small cracks come into be some new cracks so that the strain exceeds the ultimate strength and falls off finally. This is fatigue wearing. Although tungsten carbide nozzle has good hardness and toughness, it belongs to fragile materials. Its inner wall is wearing the sand flow impact and water flow is squeezing into through the cracks, which called brittle rupture abrasion.









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The tungsten ore industry requirements as well as the role: The tungsten mineral industry requirements (or mineral the industrial requirement), including the deposit boundary taste (WO₃%), industrial grade (WO₃%), mining excluding thickness (m) Thickness (m) and Stone.

Tungsten deposits associated useful components usually tin, molybdenum, bismuth, copper, lead, zinc, antimony, gold, silver, cobalt, beryllium, ithium, niobium, tantalum, rare earth, sulfur, phosphorus, arsenic, a piezoelectric crystal, melting crystals and fluorite. , Sulfur, phosphorus, arsenic, molybdenum, calcium, manganese, copper, tin, silicon, iron, antimony, bismuth, lead, zinc smelting process of tungsten and tungsten products harmful impurities, various types of tungsten concentrate products containing these harmful impurities, the state has developed the industry standard GB2825-81, tungsten ore (18), these harmful component, enriched After select technical approach, comprehensive recovery, become victims for the benefit of turning waste into treasure and comprehensive utilization. 

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Tungsten is a high melting point of rare metals in the fields of metallurgy and metal materials or refractory metals, tungsten and its alloys are extremely important function in the application of modern industrial, defense and high-tech materials one widely used in the aerospace, nuclear, The ship, the automotive industry, electrical industry, electronic industry, chemical industry and many other fields.

Tungsten ore beneficiation production line composed of jaw crusher, ball mill, classifier, magnetic separator, flotation machine, concentrator and dryer and other major equipment, with feeder, hoists, conveyors can be composed of a complete beneficiation production line. The production line has high efficiency, low-energy, high handling capacity, economic rationality.

There are two methods: pyrometallurgical and water smelting. Wolframite or scheelite concentrate smelting, smelting process of deposit both wolframite and scheelite, respectively ore body, each calculated reserves. When the ores wolframite, scheelite symbiotic, wolframite and scheelite, to elect order respectively smelting.

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There are some tungsten sinker’s types:

Pyramid and bank tungsten sinkers work best when dropping straight down to the bottom, but can become easily hung up on bottom structure. Surf anglers often select a sand tungsten sinker because of its flat design, which makes it less susceptible to being swept around in the waves once it has had the opportunity to settle into the sandy bottom off the beach. Torpedo tungsten sinkers, sometimes referred to as trolling tungsten sinkers, are cylindrical, longer and have an eyelet positioned at both ends of the weight so that it can be tied to the main line at one end and a leader at the other. It is also a favorite of Pacific coast deep water anglers, who will often clip ones between 4 to 8 ounces to the terminal end of their rig when targeting rockfish and lingcod at depths of 150 to 300 feet.

The rubber core tungsten sinker is used by anglers who want to place a weight at a random spot on their line at a point where there may be no place to effectively tie it on. By twisting the fishing line into the small slit and pulling the end of the rubber core, the tungsten sinker will hold its position until it is once again twisted off without the need to ever cut the line.

One of the most versatile and popular fishing weight is the egg tungsten sinker, which is appropriately shaped and has a small hole through its center to allow the line to feed through without resistance when the reel is in free spool. Egg tungsten sinkers can either be allowed to slide down the line to the terminal end directly next to the hook, or be placed above a barrel swivel on the other side of a leader that is between 12 and 20 inches in length. The latter configuration is also known as a Carolina rig, and can be extremely productive using live bait or soft plastics.

But no matter which tungsten sinker best meets your needs on any given fishing trip, they remain some of the most important, and least expensive, pieces of terminal gear in your tackle box.  

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Unless they happen to be lining a live baitfish, most anglers rely on some type of sinker to help get their bait down into a zone where the fish are biting. Traditionally, fishing sinkers have been made exclusively from lead for decades before its negative environmental impact was fully realized, particularly in freshwater lakes and tributaries. Luckily, in recent years a number of non-lead alternatives have begun to be used in the manufacture of fishing weights. The most popular of these substitutes is tungsten, which creates a product that is heavier, denser, and smaller than traditional lead sinkers in the same weight class. Tungsten fishing sinker is the substitution to lead. Today, there are a wide variety and styles of weights available to anglers that are specifically suited to their individual needs.

The smallest and most basic tungsten sinker is the split shot, which can be pinched onto the line or leader material a short distance away from the hook. These round weights range from the size of a BB up to several ounces. The lightest sizes are most common, however, since they are usually used to coax a live baitfish to swim a bit deeper in the water column rather than take them all the way to the bottom.

Heavier fishing weights design to take your bait down to the bottom and keep it there come in a variety of styles; the pyramid sinker, sand sinker, bank sinker and torpedo sinker are all capable of getting the job done depending upon the prevailing current and water movement.

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Nowadays, tungsten fishing sinker becomes the most popular for the fishermen, which are designed to get your lure or bait in front of the fish. Often this process involves getting your offering to the bottom of the lake or stream and keeping it there. When using tungsten sinkers, sometimes just a split shot or two does the trick. At other times (for example, when fishing in a moving current), you need much more lead.

A word of advice: Quit fishing when your tungsten fishing sinker weighs as much as your fish. With so little contrast, you probably won't be able to detect a bite; and when you do, the resulting fight to land the fish is about as much fun as reeling in the Manhattan phone book. Fish are not very particular about which tungsten sinker you use. All they care about is the food they think that you are offering them. Your choice of tungsten sinker really depends on relatively few factors:

Is there any current? (The less current, the less weight you need.)

What type of bottom are you fishing? (Is the bottom covered with rock, sand, weeds, or timber?)

What do you want your bait or lure to do? (If the bait or lure has to cover a large amount of water, you need one kind of rig. If not, you use another.)

In tungsten sinkers, shape is important. A number of tungsten sinker choices are available.

Following are the most common types of tungsten sinker:

Pyramid tungsten sinkers get to the bottom fast and dig into sand or mud.

Egg tungsten sinkers and diamond sinkers move over rocks and rubble a little easier than other shapes.

Bank tungsten sinkers work well as fish finders.

Split shot and twist-on tungsten sinkers are quick to get on and off and work well when you need a little extra weight.

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Flounder rigs use beaded casting tungsten sinkers or trolling tungsten sinkers. These tungsten sinkers are elongated and streamlined, allowing them to be bumped along the bottom with less chance of hanging on structure. The line is tied directly to one end of the tungsten sinker and the leader is tied to the other end. A twelve to eighteen-inch leader ties to a kayle or circle hook.

These rigs are ideal for dragging a live bait slowly along the bottom in search of flounder. Small mullet, mud minnows and other small live fish are ideal flounder bait with this rig.

The reason why tungsten fishing sinker becomes the most popular sinker is that it has high-density and corrosion resistance, besides, tungsten fishing sinker is harmless to environment. All these merits enhance the chance to catch flounder.

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Grouper and snapper rigs consist of three to five foot monofilament leaders with a hook on one end and a swivel on the other. Grouper rigs have heavier and longer leaders with larger hooks than the snapper rigs.

These rigs are used with an egg tungsten fishing sinker that can slide up and down the angler’s line. Bottom fishing straight down with these rigs is difficult in deep water. As the rig goes to the bottom, the weight of the tungsten fishing sinker and relative buoyancy of the bait results in some very twisted lines. The tungsten fishing weight heads for the bottom and slides up the line leaving the bait behind to twist and turn. These rigs do have a place in deep water though. In a current situation, a slower descent will stop the tangles because the current keeps the bait and hook out away from the tungsten fishing sinker on the way down. Even in a no current situation, these rigs can work well with live bait. The live bait swims away from the tungsten weight sinker, and a slow descent can again get the bait to the bottom without a tangle. Many times large grouper and red or mutton snapper are leader shy. Chicken rigs make them wary and afraid to bite. Often a very long leader with an egg tungsten fishing sinker and a live bait can entice a bite from a bigger fish.

Tungsten fishing sinker can drop down the deep ocean and in enhance the opportunity to catch grouper and snapper, meanwhile, tungsten sinker is a high-density metal, it ensure the heavier weight with small volume.

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Party boats, or head boats, take from 12 to 50 people offshore bottom fishing and provide them with the tackle and bait. More often than not, the terminal tackle provided on the rods will be the fish finder type of rig. Sometimes called a “chicken” rig, these leader- to-hook arrangements will have a pyramid or bank tungsten sinker tied to the end of the leader. Tungsten sinker is harmless to the environment, besides, tungsten sinker is a high-density sink, it can drop down the deep-ocean without disturbing fishes, that is why tungsten sinker is much popular than lead sink. Anywhere from twelve to twenty-four inches up from the tungsten sinker a loop is tied in the leader, to which is tied a hook. Sometimes a second loop and hook are tied above the first loop. Twelve inches above that will be the swivel.

The whole rig can be three feet long, making it extremely difficult to cast. This rig is designed to drop straight down to the bottom. With people fishing less than three feet apart from each other on a party boat, dropping straight down with heavy tungsten sinkers prevents lots of tangled lines. Fish finder rigs are not just for the party boats, however. When fishing over a wreck or artificial reef, there are several species of fish that may not be on the bottom. Vermillion snapper (beeliners) school and suspend in the water column over the structure. Baits going to the bottom with a heavy tungsten sinker usually rocket right through the school. Savvy anglers recognize these schools on a fish finder and change their bottom rig accordingly.

Moving from a heavily weighted single hook rig to a smaller double hook rig will produce fish. Smaller baits on the two hooks and a slow descent will almost always result in a double hookup under these circumstances.

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