公开(公告)号：US09676030B2

公开(公告)日：2017-06-13

申请号：US13989230

申请日：2011-06-30

Applicant: Zhimeng Guo ,  Weiwei Yang ,  Ji Luo ,  Huiqin Cao ,  Cunguang Chen

Inventor： Zhimeng Guo ,  Weiwei Yang ,  Ji Luo ,  Huiqin Cao ,  Cunguang Chen

IPC: B22F3/02 ,  B22F3/04 ,  B22F3/12 ,  B22F3/14 ,  B22F9/22 ,  B22F3/10 ,  C22C33/02 ,  B22F3/20

CPC classification number: B22F3/02 ,  B22F3/04 ,  B22F3/10 ,  B22F3/12 ,  B22F3/14 ,  B22F3/20 ,  B22F9/22 ,  C22C33/0228

Abstract: The invention provides an industrial method for producing dispersion-strengthened iron-based materials at low cost and in large-scale. The industrial acid pickling waste solution is treated by spray roasting process after yttrium chloride is added. During the spray roasting process, the solution is atomized into fine droplets, the droplets are contacted with gas and dried into powders, which are heated in air to form metal oxides. The mixed powders of the metal oxides are reduced in hydrogen stream to obtain yttria dispersion-strengthened iron powders. High performance dispersion-strengthened iron materials are obtained by densifying the yttria dispersion-strengthened iron powders. The method has simple process and low cost, and is suitable for large-scale production due to the direct use of acid pickling waste solution from steel factory.

公开(公告)号：US20130236349A1

公开(公告)日：2013-09-12

申请号：US13989230

申请日：2011-06-30

Applicant: Zhimeng Guo ,  Weiwei Yang ,  Ji Luo ,  Huiqin Cao ,  Cunguang Chen

Inventor： Zhimeng Guo ,  Weiwei Yang ,  Ji Luo ,  Huiqin Cao ,  Cunguang Chen

IPC: B22F3/02 ,  B22F3/10 ,  B22F3/20

CPC classification number: B22F3/02 ,  B22F3/04 ,  B22F3/10 ,  B22F3/12 ,  B22F3/14 ,  B22F3/20 ,  B22F9/22 ,  C22C33/0228

Abstract: The invention provides an industrial method for producing dispersion-strengthened iron-based materials at low cost and in large-scale. The industrial acid pickling waste solution is treated by spray roasting process after yttrium chloride is added. During the spray roasting process, the solution is atomized into fine droplets, the droplets are contacted with gas and dried into powders, which are heated in air to form metal oxides. The mixed powders of the metal oxides are reduced in hydrogen stream to obtain yttria dispersion-strengthened iron powders. High performance dispersion-strengthened iron materials are obtained by densifying the yttria dispersion-strengthened iron powders. The method has simple process and low cost, and is suitable for large-scale production due to the direct use of acid pickling waste solution from steel factory.

Abstract translation: 本发明提供了一种以低成本和大规模生产分散强化铁基材料的工业方法。 加入氯化钇后，工业酸洗废液通过喷雾焙烧处理。 在喷雾焙烧过程中，将溶液雾化成细小液滴，液滴与气体接触并干燥成粉末，在空气中加热形成金属氧化物。 在氢气流中还原金属氧化物的混合粉末，得到氧化钇分散强化铁粉。 通过使氧化钇分散强化铁粉末致密化获得高性能分散强化铁材料。 该方法工艺简单，成本低，适用于钢厂直接使用酸洗废液的大规模生产。