Seam width-adjustable circular seam type spray disc and atomization device

Abstract

The invention discloses a seam width-adjustable circular seam type spray disc and an atomization device. The circular seam type spray disc comprises an upper disc body, a lower disc body and a plurality of gaskets; the upper disc body is provided with a first flange arranged on the edge, a first half flow channel arranged on the lower side, and a first half circular seam connected with the first half flow channel; the lower disc body is provided with a second flange arranged on the edge, a second half flow channel arranged on the upper side and a second half circular seam connected with the second half flow channel; the upper disc body and the lower disc body are connected through the first flange and the second flange; the first half flow channel and the second half flow channel form a complete flow channel and an air inlet after the upper disc body and the lower disc body are connected, the first half circular seam and the second half circular seam form a complete circular seam after the upper disc body and the lower disc body are connected, and the second half circular seam is arranged around the periphery of the first half circular seam; and the plurality of gaskets are used for selecting gaskets with the corresponding number according to the preset size of a circular seam to be assembled between the first flange and the second flange.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, and more specifically relates to a circular-slit spray plate and an atomizing device capable of adjusting the width of the slit. Background technique [0002] In the field of powder metallurgy, especially when it comes to high-end products such as aerospace, automobile and medical treatment, atomization method is one of the most commonly used metal powder preparation methods. Existing atomization equipment, such as: gas atomization equipment, is a device that enters the spray plate through a gas medium, sprays the gas medium from the annular gap on the spray plate through high pressure, and breaks the metal liquid flow into powder. In the gas atomization process, it is necessary to strictly control the performance and particle size of the raw material metal powder, and the yield of the powder determines the production efficiency. At present, the part that most directly affects the powd...

AI Technical Summary

Problems solved by technology

The traditional atomization spray pan is made by machining, the internal structure of the atomization spray pan is relatively complex, and it is difficult to process and clean. If every optimization needs to make a new spray pan, first of all, it must be improved in terms of precision and strength. Without good control, it will also cause great losses in terms of time, manpower and material resources

[0004] In addition, the air intake method of the spray plate determines the stability of the air outlet pressure of the annular seam. The traditional bilateral radial or single radial air intake will lead to unstable air outlet pressure, which will affect the stability of atomization and the quality of powder. The patent application No. CN110899713 A (published date 2020.03.24) discloses a new type of close-coupled gas atomization nozzle, which adopts bilateral radial

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