In terms of firepower, when the 125mm smoothbore gun of ZTZ-99 main battle tank which has high gun pressure is utilizing tungsten alloy armor piercing fin stabilized discarding sabot(APFSDS), the tank can penetrate homogenous armor which has thickness of 850mm from a distance of 2000m. While the smoothbore gun is utilizing special alloy armor piercing (Hedo alloy penetrators) (the length to diameter for bomb core ratio is 30 to 1), the tank has penetration to armor by more than 960mm. Tungsten alloy is welcomed in military industry with its strong tensile strength, yield strength, hardness and elongation. In contrary, the U.S. M1A2 main battle tank has penetrating power for 810mm from a distance of 2000m. Germany Leopard-IIA6 has the penetrating power for 900mm. While Japanese Type 90 main battle tank has penetrating power for 650mm.

So the qualification of ZTZ-99 main battle tank is superior others in terms of power. Otherwise, ZTZ-99 main battle tank is equipped with 9K119 laser guided gunshot missile (called as AT-11 Sniper missile in the West) which is molded on Russian missile. There are 4 missiles in the tank. New artillery system is equipped with laser transmitter in gunner sighting device of tank, during improvement. The propellant powder of missile is lengthened and the weight of missile is increased too. The missile can choose complicates flight path and fly to target at low altitude, in terms of attacking conditions (such as attacking at a standstill ).


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There are some coated tungsten carbide blade advantages:

Because the surface of the coating material has a high hardness and wear resistance, and therefore as compared with uncoated cemented carbide, coated tungsten carbide allows the use of higher cutting speeds, thereby improving the processing efficiency; or in the samegreatly improving the tool life of the cutting speed.

Due to the coefficient of friction between the coating material and the material to be processed, compared with uncoated blades, the cutting force of the blade coating there is a certain decrease.

When processing blade coating, the surface quality is good.

Good overall performance, blade coating has good versatility. A blade of coated grades have a wide range of application.


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Tungsten carbide rods are manufactured as standards with one, two, or three holes, straight or twisted to a 30 or 40 degree helix, or solid with no holes. All rods are available in standard lengths of 310 and 330 mm.


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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.  

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..


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YW1  Red hardness is good, can be able to withstand the impact load, suitable for processing of heat-resistant steel, stainless steel, also suitable for ordinary steel and cast iron.

YG6   High wear resistance, good impact and vibration. Suitable for medium cutting speed semi-finishing and finishing of cast iron, non-ferrous metals and alloys, non-metallic materials.

YG8   Use intensity is high, with impact resistance, shock resistance is better than YG6, but wear resistance and the cutting speed allowed is lower, suitable for cast iron, non-ferrous metals and alloys, non-metallic materials at low cutting speed.


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Tungsten carbide cutting tools include twist drills, reamers, boring tools, milling inserts, ball mill, blade cutter, taper cutter, smooth plug rod and step drill.

Tungsten carbide can be used as a wide variety of cutting tools. cutting tool Carbide The amount of tungsten carbide tool occupies about one-third of the entire tungsten carbide production.


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The material of manufacturing the tool must have high temperature hardness and wear resistance, the necessary bending strength, impact toughness and chemical inertness, for good process, usually when the hardness is high, wear resistance is also high; high bending strength is with impact toughness. However, the higher the hardness is, the lower the flexural strength and impact toughness are. Tungsten carbide is a widely used tool material. Tungsten carbide indexable inserts are now coated with titanium carbide by chemical vapor deposition of titanium nitride, alumina hard layer or composite hard layer. Developing physical vapor deposition method can be used for carbide tool.


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Tungsten carbide rod is tungsten carbide cutting tools, which applies different coarse grinding parameters, cutting materials and non-metallic materials. Meanwhile, the tungsten carbide rod can also be applied to a conventional automatic, semi-automatic lathe, and so on. The main process is milling → formula according to the intended use →wet milling →mixing →smashing →drying → sifting → crush → drying → mixed sieved and then drying → mix → granulation suppress → forming → low pressure burning → forming → ??cylindrical grinding fine grinding → packaging →detection size →putting in storage.


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standard rods overview
solid rods
1 central coolant duct - broken link
2 straight coolant ducts
2 coolant ducts 30° helix
2 coolant ducts 40° helix
3 coolant ducts 30° helix
3 coolant ducts 40° helix
micro twisted coolant ducts 

Special Rods

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Welding procedure variables control the welding process and the quality of the welds produced. Joint configuration is determined by the design of the weldment, the metallurgical analysis, and by the process and procedure required by the weldment.

Welding variables are selected after the base metal, filler metal, and joint configuration have been selected. The fixed welding variables include the type of filler metal, electrode type and size, the type of current, and the type of shielding gas.

The adjustable variables control the shape of the weld by affecting things such as bead height, bead width, penetration, and weld integrity. The primary adjustable variables for GTAW are welding current, arc length, and travel speed.

Secondary variables also aid in controlling the welding process, but it is more difficult to calculate the extent of effect. The secondary variables include work and travel angle and the distance the electrode extends beyond the end of the cup.

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