There are mainly three color classification of tungsten carbide rod surface.

1. The sintered tungsten carbide rod surface is the silver gray metallic luster.

2. Forged tungsten carbide rod with a layer of oxide on the surface is black.

3. The polished tungsten carbide rod is silver gray metallic luster.


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With the introduction of new power source technologies, the use of pure tungsten is decreasing.
Pure tungsten melts at a lower temperature causing it to easily form a rounded ball at the tip. When the ball grows too large, it interferes with your ability to see the weld puddle and causes the arc to become unstable.
Ceriated tungsten can withstand higher temperatures and works very well with the new squarewave and inverter machines for the following reasons:
Holds a point longer and starts well at low amperages.
Can be used on both AC and DC polarities. When welding aluminum, it has become very acceptable to grind a point on ceriated tungsten (especially when welding on thinner materials).

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Tungsten carbide rod are non-ferrous metals, is also an important strategic metal, tungsten ore was known as "heavy stone" in ancient times. 1781 the Swedish chemist Carl.William found scheelite, and extracted the other new elements acid, 1783 Spanish Depp Air Asia wolframite extracted tungsten carbide acid, the same year, the tungsten powder was gotten for first time and named the element. The tungsten content in the earth's crust is 0.001%. Tungsten carbide rod is mainly Steel gray or silver-white with high hardness, high melting point, and is from the air in the room temperature erosion.

The industrial purpose of tungsten carbide rod is to create the filament and high-speed cutting steel, hard mold, also for optical instruments, chemical instrumentation.


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Threading tools with a carbide end are often found in machine shops to cut metal. They are also called lathe tools and can be on an assortment of materials such as turret lathes, vertical turret lathes, engine lathes and chuckers.

Tungsten carbide threading tools come in both left- and right-hand versions and some suppliers will make custom-built ones per specified needs.


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