Weldcraft has expanded its premium tungsten electrode offering to include 2 percent lanthanated and zirconiated tungsten electrodes. Like its existing tungsten electrode offering – pure, 2 percent ceriated, 1.5 percent lanthanated, rare earth and 2 percent thoriated – the new additions have undergone rigorous testing to ensure the highest quality and performance.

The 2 percent lanthanated tungsten electrodes provide similar characteristics as the 1.5 percent lanthanated tungsten electrode, but with improved arc starting and stability, and less tip erosion. They are also a good substitute for 2 percent thoriated tungsten electrodes. The new zirconiated tungsten electrodes resist spitting in higher current applications, minimizing the opportunity for tungsten contamination. These electrodes also provide excellent arc starts and stability, and ball up easily in AC applications, ensuring a smooth arc.

Weldcraft offers all of its tungsten electrodes in seven-inch lengths and in five industry-standard diameters (0.040-, 1/16-, 3/32-, 1/8- and 5/32-inch). Each package of ten tungsten electrodes features three languages – English, Spanish and French – and is color-coded according to American Welding Society (AWS) A5.12 and ISO 6848 standards: pure – green; 2 percent ceriated – grey; 1.5 percent lanthanated – gold; 2 percent lanthanated – blue; rare earth – aqua; 2 percent thoriated – red; and zirconiated – brown.
 

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Used as a defense and military weapons and precision electronics industry and other precision technology and materials in the field, the tungsten carbide rod packing needs to pay attention to the following matters:

(1) Tungsten carbide rod required PE Pearl cotton material individually wrapped, placed in a suitable wooden box;

(2) And you must fill the extra gap, in order to prevent vibration during transit.


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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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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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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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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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Now, tungsten carbide indexable cutting tools are using chemical vapor deposition method to depositing titanium carbide, titanium nitride, alumina hard layer or composite hard layer. The developping physical vapor deposition method not only can be used for the carbide cutting tools, but also can be used for high speed steel cutting tools, like drill bits, hobbing cutter, screw tap, milling cutter and so on. As a barrier for chemical diffusion and heat conduction, hard coating makes cutter-wear rate slower. Compared with no coating blade, the life of coating blade may improve more than 1-3 times.

Due to the application in high temperature, high pressure, high speed, and corrosive fluid medium parts, it is more and more difficult to machine materials, and the increasing demands for the automatic level of cutting process and machining precision. In order to adapt to this situation, the manufacturer should do something as follows: first of all, the development direction of cutting tools will use the new cutting tool matrials; second, to further develop vapor deposition technologies of cutting tool and higher hardness of the coating on the high strength and high wear resistance base would solve the problem between hardness and strength of cutting tools;third, to further develop the structure of tungsten carbide indexable cutting tools; fourth, to omprove the machining precision and reduce the difference between the product’s quality to make the use of cutting tools realize optimization.


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Tubgsten carbide circular saw blades are sized to fit not only in industrial machinery but also in standard table saws and hand-held circular saws.

The most common tungsten carbide circular saw blades are not solid tungsten carbide; their body is typically tempered steel and only the cutting edges of the teeth are coated with tungsten carbide. A variation of the toothed saw blade is the grinding "wheel" or abrasive blade---still circular but without teeth.

Their edge is coated with tungsten carbide and used to exert abrasive force as they grind through stone, ceramics and metal.


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1.Clean
Cleaning both the weld joint area and the filler metal is an important preparation. Remove all oil, grease, dirt, paint, etc. The presence of these contaminants may result in arc instability or contaminated welds.
2.Clamp
Clamping may be required if the work piece cannot be supported during welding.
3.Tack weld
Make short 1/4 in. tack welds along the work pieces to hold them together.

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Tungsten carbide has a variety of uses due to its unique physical properties. Its molecular formula is WC, and it is very similar in nature to titanium carbide. Since it does contain two different elements, it is classified as a chemical compound.

Melting Point
Tungsten carbide has an extremely high melting point at 5,200 degrees Fahrenheit.

Hardness
Tungsten Carbide falls between 8.5 to 9.0 on Moh's hardness scale, making it almost as hard as diamond.

Military Uses
The military makes armor piercing ammunition out of tungsten carbide.

Sports Uses
Ski poles sometimes use tungsten carbide to reduce the impact on the skier's legs.

Everyday Uses
Many jewelers use tungsten carbide to create wedding bands for men.


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