高压水雾化生产低含氧量金属粉末装置及其工艺特征

所研制的高压水雾化生产低含氧量金属粉末装置属于整体密封型。由喷嘴与雾化管或与雾化小室等组成雾化器,水压达16MPa。使用射吸式水力旋流器,使雾化制粉和粉末收集同时进行。其工艺特征主要是制粉过程与空气避免接触。雾化后的热态粉末,尽快落入冷水并作剧烈搅拌,使粉末表面不产生氧化薄膜,从而生产出低含氧量全属粉末。装置结构紧凑,造价低,操作维护方便,除供生产使用外,也可供实验室使用。文中扼要阐述了本装置的工作原理、主要性能、工艺特征以及装置中几个需要解决的技术问题。

Equipment for Producing Low Oxygen Content Metal Powder by High Pressure Water Atomization and Its Processing Characteritics

The equipment for Producing low oxygen content metal powder developed in this article is of a integral sealing type.The atomizer is composed of nozzle with atomizing pipe or with atomizing cabinet and the pressure of atomizing water is up to 16 MPa.The atomization and collection of powder can be simultaneously conducted by using a hydraulic rotator which is spray-absorption type.The main technological characteristic is to prevent from contacting with air during the process of making powder.The atomized hot powder fell into cold water rapidly and was fiercely agitated so that there was no oxygen film formed on powder surfaces.Therefore metal powder with low oxygen conent could be produced.This device has the advantages of compact structure,low cost convenicnt operation and maintenance, and is also available for experimental laboratories.The Paper has briefly described the operation principles of the equipment,its main performance,processing charaCteristics and several techical problems which can be solved.