Vertical superhigh-temperature continuous balling furnace

Abstract

The invention relates to a vertical superhigh-temperature continuous balling furnace which comprises an upper part, a middle part and a lower part of a furnace body; the furnace is internally overlapped with bases, and a blanking channel is formed by the bases, a through hole in a graphite pipe and a feeding pipe which is arranged above the graphite pipe and corresponds to the graphite pipe; the graphite pipe is internally provided with a tubular heating area; the bottom of the through hole is provided with step holes with the same axle center from top to bottom and small to big; and the horizontal plane of an upper step is arranged in the tubular heating area, so that the outlet temperature of a blanking through hole in the heating area can be increased, the material is prevented from solidifying near an outlet and blocking the blanking channel due to the low temperature, the material is ensured to smoothly flow, and high-efficiency and low-consumption production can be realized.

Description

technical field [0001] The invention relates to a vertical ultra-high temperature continuous spheroidizing furnace, in particular to a vertical ultra-high temperature continuous spheroidizing furnace which can realize the spheroidizing process of irregularly cast tungsten carbide and other hard alloy particles in the hard surface material industry. technical background [0002] As people have higher and higher requirements on the surface wear resistance and anticorrosion performance of workpieces, the market demand for hard surface materials is growing at a rapid rate, especially with the continuous development of hard surface material spraying (spray welding) technology, spherical casting carbonization Tungsten has attracted people's attention for its unique combination of strength and hardness, good fluidity and wear resistance and corrosion resistance. [0003] As early as the end of the last century, people proposed the concept of spherical cast tungsten carbide, and dev...

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Problems solved by technology

[0003] As early as the end of the last century, people proposed the concept of spherical cast tungsten carbide, and developed a variety of preparation technologies and process equipment, such as water-cooled crucible melting rotary atomization method, arc melting rotary atomization method, ultra-high temperature melting gas atomization method etc., the common feature of these methods is: first melt the ingredients into tungsten carbide solution, then atomize and granulate the solution and cool it rapidly, so as to obtain spherical cast tungsten carbide particles, although they save the production of ordinary casting The process of tungsten carbide particles has the advantage of short process chain, but has the disadvantages of wide particle size range and high production cost, so it is not suitable for industrial scale production

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