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Chemical combination tower cavity used for metal atomization powder process

A technology of atomization pulverization and compounding tower, which is applied in the field of powder metallurgy equipment, can solve the problems that the specific structure and its materials are not given, and the requirements of high temperature and air tightness of the metal atomization reaction are not known, and the structure is simple, Good airtightness and low production cost

Pending Publication Date: 2018-06-29
HUNAN JUTA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-pressure atomization chamber in this device does not give its specific structure and materials used, and it is not known whether it can meet the requirements of high temperature and air tightness for metal atomization reactions.

Method used

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  • Chemical combination tower cavity used for metal atomization powder process
  • Chemical combination tower cavity used for metal atomization powder process
  • Chemical combination tower cavity used for metal atomization powder process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] refer to Figure 1~4 : A compounding tower chamber for metal atomization powder making, comprising a compounding tower shell 2 and a compounding reaction chamber 1 installed inside it; Made of carbon-carbon composite material, the top of the chemical reaction chamber 1 is provided with a connecting chamber 11 connected to the atomization spray plate, and the bottom is provided with a drain pipe 15; the side near the drain pipe 15 is also provided with an air inlet pipe 14 ; The connection between the connecting chamber 11 and the chemical reaction chamber 1 is provided with an exhaust nozzle 12, and the side wall of the chemical reaction chamber 1 is provided with a centralizing assembly 13.

[0025] The temperature resistance of the carbon-carbon composite material is ≥2000°C.

[0026] The high-temperature anti-oxidation coating is coated with a graphite high-temperature anti-oxidation coating that can be used at a temperature ≥ 1800° C., and its thickness is 3 mm. T...

Embodiment 2

[0033] Compared with Example 1, there are the following differences in a compound tower chamber for metal atomization pulverization in this example:

[0034] The temperature resistance of the carbon-carbon composite material is ≥2500°C.

[0035] The high-temperature anti-oxidation coating is coated with graphite high-temperature anti-oxidation coating that can be used at a temperature ≥ 2000° C., and its thickness is 5 mm.

[0036] The working principle and method of use of a compound tower chamber for metal atomization pulverization of the present invention are as follows: the compound reaction chamber 1 is fixed in the compound tower shell 2 by the support member 16 at the bottom of the centralization assembly 13; Into the compound reaction chamber 1, the gasification reaction gas (such as O 2 , CO 2 or N 2 ), the gas gradually reacts with the metal powder falling from the top of the compound reaction chamber 1 from bottom to top, and oxidizes, carbonizes or nitrides the ...

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Abstract

The invention provides a chemical combination tower cavity used for metal atomization powder process. The chemical combination tower cavity used for the metal atomization powder process comprises a chemical combination tower shell body and a chemical combination reaction cavity mounted in the chemical combination tower shell body; the chemical combination reaction cavity is made of a carbon-carboncomposite material of which outer surface is coated with a high temperature anti-oxidation coating; a connecting cavity connected with an atomization spraying disk is arranged at the top end of the chemical combination reaction cavity and a leaking pipe is arranged at the bottom of the chemical combination reaction cavity; an air inlet pipe is arranged near one side of the leaking pipe; an air exhausting nozzle is arranged at the junction of the connecting cavity and the chemical combination reaction cavity; a strengthening assembly is arranged at the side wall of the chemical combination reaction cavity. The chemical combination tower cavity used for the metal atomization powder process is simple in structure and low in manufacture cost; the chemical combination reaction cavity is made of various materials in a composite manner, so that the high-temperature-resistant performance is good; the gas tightness is good.

Description

technical field [0001] The invention relates to a powder metallurgy equipment, in particular to a compound tower chamber for metal atomization powder making. Background technique [0002] In recent years, "3D printing" and other additive manufacturing methods have attracted people's attention. It can directly produce metal products without forging, turning, milling, planing and grinding, which greatly reduces energy consumption and saves materials. The metal injection molding method, selective laser melting method and selective laser sintering method are all additive manufacturing methods, which are suitable for the production of powder metallurgy small parts with complex shapes. These methods have high requirements on the morphology, particle size distribution, oxygen content, etc. of the metal powder, and the metal powder produced by the gas atomization method can meet these requirements. Due to the specific reaction conditions of gas atomization powder production, the eq...

Claims

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Application Information

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IPC IPC(8): B22F9/08
CPCB22F9/082
Inventor 王利民
Owner HUNAN JUTA TECH
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