Gold Plated Tungsten Price

The Outline of dart

Details: Category: Tungsten Information; Published on Wednesday, 08 May 2013 16:29; Hits: 2226

Darts is a fun social game that has been around a very long time. Its enduring popularity reveals it to be a sport that combines talent, skill and even a bit of luck.

The history of darts goes back to the days of the Longbow in Medeival England.

The setup for the dartboard is fairly simple, but it is rigid and for the sake of uniformity should be done as precisely as possible.

Safety is a prime concern playing with darts, because they can be dangerous if handled improperly.

The basic rules of darts are simple, fun and provide for a competitive game.

There are many variations to the rules for darts. We give you the flavor of a few.

Learning how to throw darts is fundamental to becomming a good dart player.

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Proper Tungsten Preparation For Tungsten Electrodes II

Details: Category: Tungsten Information; Published on Wednesday, 08 May 2013 15:10; Hits: 2275

To grind the tungsten electrode to a point, use a grinding wheel (Borazon® or diamond) specially designated the purpose to help prevent contamination. Grind the tungsten electrode straight on the wheel (i.e. not at a 90-degree angle) to ensure that the grind marks run the length of the tungsten electrode, which reduces ridges that can lead to arc wandering. To ease arc starting and ensure a focused arc, grind the taper to a distance of no more than 2.5 times the electrode diameter (e.g. the taper on a 1/8-inch tungsten electrode should be 1/4 – 5/16-inches long).
Note: when grinding thoriated tungsten electrodes, make sure to control and collect the dust, have an adequate ventilation system at the grinding station and follow manufacture’s warnings, instructions and MSDS.

Truncated Tungsten Electrodes
For higher current applications, a truncated or flat tip works well. The flat land helps prevent the tungsten electrode from being transferred across the arc and/or from balling. Start by grinding the tungsten electrode to a taper (as explained above) and then grind a .010- to .030-inch flat land on the end.

Selecting the right tungsten electrode for the material being welded and the power source available are good first steps in ensuring positive GTA welding performance. Take the time to learn which is best for the application at hand and learn the proper technique for preparation. Doing so can minimize problems with arc starting and stability, contamination and more.

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A brief chart to introduce Tungsten bar

Details: Category: Tungsten Information; Published on Wednesday, 08 May 2013 15:03; Hits: 2120

Description	Code	W content (%)	Density g/cm³	Size of blanks	Applications
Pure tungsten bars	TW-2	99.95	17.5	12 x 12 x 400 14 x 14 x 450 16 x 16 x 600	W rods and contacts
Tungsten bars for drawing wire	TW-2.1 TWA1	99.0			Doped W bars suitable for drawing wire and for stirring rods in the smelting of rare earth metals
Tungsten bars for steel smelting	TW-1 TW-4	99.95 99.9			High purity W bars suitable for steel smelting W bars of an industrial grade suitable for steel smelting
Tungsten blanks	BPW	99.95	18	(20-50) x (20-300) x (20-600)	Suitable for rolling tungsten plates

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Proper Tungsten Preparation For Tungsten Electrodes I

Details: Category: Tungsten Information; Published on Wednesday, 08 May 2013 15:10; Hits: 2260

Depending on the type of tungsten electrode, preparation consists of creating one of three shapes: balled, pointed or truncated. Following are recommendations for each:

Balled Tungsten Electrodes
The balled shape is common for pure tungsten electrodes, particularly for the AC process on sine wave and conventional squarewave GTAW power sources. To ball the tungsten electrode, apply the AC amperage recommended for the electrode diameter. The ball will form itself. In order to reduce the risk of the tip falling off or causing arc instability, the diameter of the balled end should not exceed 1.5 times the diameter of the electrode. For example, a 1/8-inch electrode should form, at the most, a 3/16-inch diameter end.

Pointed Tungsten Electrodes
A pointed shape can be used for pure, ceriated, lanthanated, rare earth, and thoriated tungsten electrodes when using inverter AC and DC welding processes. It also works well for welding with lower currents on thinner materials, as it directs the welding current into focused arc and helps prevent them from distorting. It is not recommended to use a pointed tungsten electrode for higher current applications since the tip can come off, leading to contamination.

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Attributes of Zirconiated Tungsten Electrode

Details: Category: Tungsten Information; Published on Wednesday, 08 May 2013 14:50; Hits: 2124

We manufacture Zirconiated Tungsten Electrode using excellent quality tungsten material. Our Zirconiated Tungsten Electrode has various anti corrosive properties that ensure excellent performance.

Attributes : Excellent performance
Anti corrosiveness
Can be used for welding under A/C
Retains balled end during welding
High resistance to contamination
Less tungsten permeation
Good arc starting

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