Gold Plated Tungsten Price

Tungsten Carbide Rod Properties

Details: Category: Tungsten Information; Published on Monday, 22 September 2014 17:27; Written by jwy; Hits: 488

Tungsten carbide or cemented carbide has many superb characteristics such as high hardness, good strength, good wear and corrosion resistance and salient stability under higher temperatures even at 500°C. It remains unchanged and even at 1000°C attains high hardness. Cemented tungsten carbide as a sintered metallurgical product is in powder form and is manufactured in vacuum or Hydrogen reduction furnace with refractory tungsten material (WC) micron powder as the main ingredient and Cobalt (Co), Nickel (Ni) or Molybdenum (Mo) as the binder. Tungsten carbide rods have the same properties as with any cemented tungsten carbide product.

Manufacturers of tungsten carbide rods usually supply this product with one or two straight holes with a length consisting of 330mm. There are different types of cemented tungsten carbide products of different forms such as solid carbide rod, strip, mill and drill, cutter/tip nozzle, dies and complex parts etc. There are usually three types of cemented tungsten carbide rods such as PCB rod, blank rod and rod. These products with holes are suitable for manufacturing of various kinds of solid cemented carbide tools for the machining of heat-resistant alloys and Ti alloy and suitable for the manufacturing of micro drills used for machining PCB. The holes also play a part in cooling process of machining.

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Tungsten Carbide Rods Types

Details: Category: Tungsten Information; Published on Monday, 22 September 2014 17:22; Written by jwy; Hits: 553

Tungsten carbide as a material compound is in huge demand for its very high strength as well as rigidity. Its comprehensive strength is higher than all existing melted and cast or forged metals and alloys. Its compositions range from two to three times as rigid as steel and four to six times as rigid as cast iron and brass. Young's Modulus is up to 94,8000,000 psi. Tungsten base carbides work well up to about 1000 ℉in oxidizing atmospheres and up to 1500℉ in non-oxidizing atmospheres. Tungsten carbide rods maintain all the features of tungsten carbide with availability of different grades.

Tungsten carbide rod with grade of YF06 is suitable for machining composite materials such as aluminum magnesium alloys, carbon fiber, reinforced plastics and iron based alloys etc.. This product id recommended for making big PCB drills of Φ3.2-6.3 mm, micro drills of Φ0.8-3.2 mm micro milling tools and reamers etc.. These tungsten carbide rods come in various sizes and shapes such as tungsten carbide ungrounded rods,precision ground tungsten rods, precision groung tungsten carbide rods, sintered rods with one straight hole. The material used in manufacturing these products is based on ISO K10, K20, K30 and k40f. Manufacturers also undertake orders of non-standard sizes per the customers' specilifications.

The delivery of all standard pressed rods by the mannufacturers is in inch and metric sizes that are susally made available from their existing stocks. Special grades, sizes and shapes are manufactured to customer specifications and delivered on time. The finished or utility ground rod is available in the length up to 12 inches. For the metal producing industry, the manufacturers also produce tungsten carbide roll rings, flattening rolls, slitter knives, hedge trimmers, scrap chopper blades, saws, guides and other parts suitable for use in tough mill environments.

Manufacturers follow the established standards for all tungsten carbide grades and coontrol checks are performed at each operation. They also check the grain sizes and do chemical analysis ti assure that all products conform to the set standards, Test prices are made to determine physical properties of the products for their hardness, transverse rupture strength and density. They also observe for any fractured and polished surfaces through micrographic test with the test results of each lot being recorded before shipping the product to the final customers or users. Some manufacturerd do provide certification of test resuts when asked by the customers

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How to Place Fishing Sinkers to the Line 1

Details: Category: Tungsten Information; Published on Monday, 22 September 2014 09:17; Written by Sherry; Hits: 582

If you use light bait such as a worm or an insect, you will find that your hook will float at the top of the water and it is difficult to attract any fish. A popular method of getting your hook to submerge further in the water is to use fishing sinkers. These small metal balls are easily placed on the line and increase your chances of catching a fish. So it is critical to place a suitable fishing sinker onto your fishing rigs, it is so easy that you can do it yourself if you have the necessary things, such as fishing line, scissors and sinkers and sometimes you need a snap swivel.

First remove your hook from the fishing line. You will not be able to place your fishing sinkers without a free end of fishing line to utilize. Use a pair of scissors to trim the hook off your line.

Run a line through one of your fishing sinkers. Most style of sinkers have a hole running through the middle of them. This is for securing it to the line. Thread the fishing line through the hole until several inches worth of line are fed out the opposite end of the sinker.

how-to-tie-sinker-to-line

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Tungsten Carbide Rod Introduction

Details: Category: Tungsten Information; Published on Monday, 22 September 2014 16:34; Written by jwy; Hits: 576

High purity tungsten rods can be used as heat conductor, additive, crankshaft and cylinder barrel of automobile, parts of heat-resistant steel and electrode. High purity tungsten rods are mainly used in guns, rockets, satellites, airplanes and ships.

Cemented Tungsten carbide is a sintered metallurgical product of powder form. It is manufactured in vacuum or Hydrogen reduction furnace with refractory Tungsten material (WC) micron powder as the main ingredient and Cobalt (Co), Nickel (Ni) or Molybdenum (Mo) as the binder.

Cemented Tungsten carbide has many excellent characteristics such as high hardness and strength, good wear and corrosion resistance and salient stability under high temperature (even at 500 ºC it is essentially unchanged and at 1000 ºC it is still of high hardness). It can be used to cut cast iron, nonferrous metals, plastics, chemical fiber, stainless steel and high Manganese steel, etc., and make drilling tools, mining tools, wear parts, precision bearings, nozzles and metal molds, etc..

Specifications:

Type	Diameter (mm)	Dia. Tolerance (mm)	Length (mm)	Length Tolerance (mm)
PCB rod	3.25 ~ 7	0 / +0.1	12 ~ 40	0 / + 0.2
Blank rod	1.1 ~ 42	---	700 Max	---
rod	2 .0 ~ 25	---	38 ~ 150	---

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Tungsten Alloy Bar Applications

Details: Category: Tungsten Information; Published on Friday, 19 September 2014 15:50; Written by jwy; Hits: 542

Tungsten has about the same electrical conductivity and resistivity, coefficient of thermal expansion, and about the same resistance to corrosion by mineral acids as molybdenum. Tungsten is high strength at temperatures above 2,000Â°F, but because the melting point is higher, it retains significant strength at higher temperatures. The elastic modulus for tungsten is about 25% higher than that of molybdenum, and its density is almost twice that of molybdenum. All commercial unalloyed tungsten is produced by powder-metallurgy methods; it is available as rod, wire, plate, sheet, and some forged shapes. For some special applications, vacuum-arc-melted tungsten can be produced, but it is expensive and limited to relatively small sections.

Several tungsten alloys are produced by liquid-phase sintering of compacts of tungsten powder with binders of nickel-copper, iron-nickel, iron-copper, or nickel-cobalt-molybdenum combinations; tungsten usually comprises 85 to 95% of the alloy by weight. These alloys are often identified as heavy metals or machinable tungsten alloys. In compact forms, the alloys can be machined by turning, drilling, boring, milling, and shaping; they are not available in mill product forms because they are unable to be wrought at any temperature.

Typical Applications include weights and counterbalances for aircraft control surfaces and rotor blades, guidance platforms, counterbalances for fly wheels, turbines and engine crankshafts, vibration damping governors, filaments, and fuse masses. Other applications include radiation shielding, gyro rotors, weapons including armor piercing applications, and high temperature tooling.

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