氣霧化制粉技術(shù)發(fā)展歷程及展望

編號(hào)：FTJS00408

篇名：氣霧化制粉技術(shù)發(fā)展歷程及展望

作者：歐陽鴻武; 陳欣; 余文燾; 黃伯云;

關(guān)鍵詞：氣霧化; 粉末; 技術(shù); 發(fā)展; 展望;

機(jī)構(gòu)： 中南大學(xué)粉末冶金國家重點(diǎn)實(shí)驗(yàn)室; 中南大學(xué)粉末冶金國家重點(diǎn)實(shí)驗(yàn)室 長(zhǎng)沙;

摘要： 氣霧化制粉具有環(huán)境污染小、粉末球形度高、氧含量低以及冷卻速率大等優(yōu)點(diǎn)。經(jīng)過多年的不斷創(chuàng)新和完善,氣霧化制粉技術(shù)已發(fā)展為生產(chǎn)高性能金屬及合金粉末的主要方法,成為支撐和推動(dòng)新材料研究及新技術(shù)開發(fā)的先導(dǎo)因素。然而,氣霧化制粉工藝本身是一個(gè)多相流相互耦合作用的復(fù)雜過程,人們對(duì)氣霧化機(jī)理至今仍未能透徹認(rèn)識(shí);在大批量低成本制備均勻、微細(xì)粉末方面仍面臨嚴(yán)峻的挑戰(zhàn)。期待技術(shù)的改進(jìn),甚至霧化原理的突破。就此,本文簡(jiǎn)要回顧了氣霧化制粉技術(shù)的發(fā)展歷程,著重介紹了近年來的研究進(jìn)展和技術(shù)創(chuàng)新成果,并對(duì)其發(fā)展前景進(jìn)行了探討和展望。 In virtue of its high cooling rate, perfect sphere degree, low environmental pollution and nearly free oxygen, gas atomization has been practiced widely in modern and national defense industry. With great progress in the past many years, it is gradually becoming the prevalent method of producing high quality metal and alloy powders, even the prerequisite and crucial foundation for propelling the development of PM2 and other related new high techniques. However, gas atomization itself is an extremely complic...