Tungsten Electrodes Price

Tungsten Carbide Atomizing Nozzle Principle III

Details: Category: Tungsten Information; Published on Tuesday, 11 August 2015 17:30; Written by xiaobin; Hits: 330

The basic principle of tungsten carbide rotary atomizing nozzle is that provides liquid for high-speed rotation center so that the liquid surrounding the rotating element or thrown bore, it is by means of centrifugal force and air power to atomize. When the flow is small, the centrifugal force is stronger than the liquid surface tension, and turntable edge throws a few large droplets and divides directly.

While the flow and speed increases, the liquid is drawn into much filamentous flow and becomes very unstable. The liquid leaving the rim at a distance due to the effect of friction with the surrounding air is separated into small droplets. As the flow and speed increases to a certain extent, the liquid film becomes thinner outwardly extended, and separated from the friction with the surrounding atomization at the same time.

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Tungsten Carbide Atomizing Nozzle Principle II

Details: Category: Tungsten Information; Published on Tuesday, 11 August 2015 17:28; Written by xiaobin; Hits: 324

Compared with straight-flow atomizing nozzle, centrifugal nozzle working principle is more difficult. In the beginning, the given velocity of liquid is low, the liquid surface tension and inertial force plays an important role. Even if liquid surface tension is stronger than inertial force, liquid film shrinks into vacuole, it will still break up and become drops under aerodynamic. With the increasing pressure and spraying speed, film liquid will become instable and break up because of inertial force. Finally, the ribbon-shaped film liquid will vibrate against air movement so that liquid surface tension and viscosity become weaker gradually, and atomizing under higher pressure.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten Carbide Nozzle Welding Procedure III

Details: Category: Tungsten Information; Published on Tuesday, 11 August 2015 17:22; Written by xiaobin; Hits: 315

The influence of welding time for quality: In a short time, the welded surface fully physical contact gradually, and diffusion of atoms become sufficient, welding shear strength and welding rate increases by welding time steadily. However, when the strength of soldering seam reaches the strength of tungsten carbide, if adding welding time continuously, it will make tungsten carbide particles become bigger and bigger so that some micro-bore will appear and the strength of soldering seam will decrease, which because of the different spreading speed between Co and Ni. Therefore, reasonable welding time is a guarantee for improving the soldering seam strength.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Tungsten Carbide Atomizing Nozzle Principle

Details: Category: Tungsten Information; Published on Tuesday, 11 August 2015 17:26; Written by xiaobin; Hits: 311

According to atomizing type, they can be divided into pressure atomizing nozzle, rotary atomizing nozzle and media atomizing nozzle. Tungsten carbide pressure atomizing nozzle will spray flow to steady or low-speed airflow for atomizing under high fluid pressure. While different structures of ways inside have different atomizing process, they can be specifically divided into straight-flow atomizing process and centrifugal film-liquid atomizing process. The straight-flow atomizing process is simple, which includes liquid surface tension, viscosity and air resistance. Liquid turns drops, smooth flow and wavy flow into atomization gradually.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Tungsten Carbide Nozzle Welding Procedure II

Details: Category: Tungsten Information; Published on Tuesday, 11 August 2015 17:21; Written by xiaobin; Hits: 289

The influence of welding temperature for quality: Welding temperature plays a significant role in welding plastic deformation, enlarging the contact area between two welding surfaces, accelerating spreading process and improving the strength and compactness of soldering seam. In addition, with the welding temperature increasing, the strength of soldering seam will improve gradually. When the temperature is running up to a certain value, the yield strength of material will remarkably reduce, the contact areas will rapidly increase and welding rate will improve a lot.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
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