公开(公告)号：US5993502A

公开(公告)日：1999-11-30

申请号：US272569

申请日：1999-03-19

申请人： Ryutaro Motoki ,  Takashige Ishida ,  Shigeru Tanaka ,  Jun Funakoshi ,  Takashi Nishi ,  Akira Kosaka ,  Tetsuo Kimura

发明人： Ryutaro Motoki ,  Takashige Ishida ,  Shigeru Tanaka ,  Jun Funakoshi ,  Takashi Nishi ,  Akira Kosaka ,  Tetsuo Kimura

IPC分类号： B01D39/20 ,  B22F3/11 ,  B22F7/00 ,  F01N3/021 ,  F01N3/022 ,  F01N3/28 ,  B22F7/02 ,  B01D46/24

CPC分类号： B22F3/1103 ,  B01D39/2034 ,  B22F7/002 ,  F01N3/0212 ,  F01N3/022 ,  F01N3/2803 ,  F01N3/2882 ,  B22F2998/00 ,  B22F2999/00 ,  F01N2250/02 ,  F01N2330/14 ,  Y02T10/20 ,  Y10S55/30

摘要： A sintered porous metal filter permitting passage of gases therethrough comprises a filter portion having specified pores for trapping dust as separated from the gas to be treated, and a support portion for supporting the filter portion, the support portion having pores greater than the pores of the filter portion to diminish the pressure loss of the gas to be treated, the filter portion comprising metal particles of small diameter, the support portion comprising metal particles having a greater diameter than the filter portion forming metal particles, the filter portion and the support portion being formed to provide an outer side and an inner side integral therewith by sintering the two kinds of metal particles by hot isostatic pressing. A catalyst reaction portion for rendering noxious components of the gas to be treated harmless is formed in the filter portion or the support portion, or as an independent catalyst layer.

摘要翻译： 允许气体通过的烧结多孔金属过滤器包括具有用于捕获与待处理气体分离的灰尘的特定孔的过滤器部分和用于支撑过滤部分的支撑部分，所述支撑部分具有大于 过滤部分，以减少待处理气体的压力损失，所述过滤器部分包括小直径的金属颗粒，所述支撑部分包括直径大于形成金属颗粒的过滤部分的金属颗粒，所述过滤部分和所述支撑部分是 形成为通过热等静压来烧结两种金属颗粒而提供与其一体的外侧和内侧。 在过滤器部分或支撑部分中形成用于使待处理气体的有害成分无害化的催化剂反应部分，或作为独立的催化剂层。

公开(公告)号：US5925156A

公开(公告)日：1999-07-20

申请号：US749237

申请日：1996-11-14

申请人： Ryutaro Motoki ,  Takashige Ishida ,  Shigeru Tanaka ,  Jun Funakoshi ,  Takashi Nishi ,  Akira Kosaka

发明人： Ryutaro Motoki ,  Takashige Ishida ,  Shigeru Tanaka ,  Jun Funakoshi ,  Takashi Nishi ,  Akira Kosaka

IPC分类号： B01D39/20 ,  B22F3/11 ,  B22F7/00 ,  F01N3/021 ,  F01N3/022 ,  F01N3/28 ,  B01D46/24 ,  C22C1/08

CPC分类号： B22F3/1103 ,  B01D39/2034 ,  B22F7/002 ,  F01N3/0212 ,  F01N3/022 ,  F01N3/2803 ,  F01N3/2882 ,  B22F2998/00 ,  B22F2999/00 ,  F01N2250/02 ,  F01N2330/14 ,  Y02T10/20 ,  Y10S55/30

摘要： A sintered porous metal filter permitting passage of gases therethrough includes a filter portion having specified pores for trapping and separatin dust from the gas to be treated, and a support portion for supporting the filter portion. The support portion has pores greater than the pores of the filter portion to diminish the pressure loss of the gas to be treated. The filter portion includes metal particles of small diameter, and the support portion includes metal particles having a greater diameter than the filter portion forming metal particles. The filter portion and the support portion are formed by sintering the two kinds of metal particles by hot isostatic pressing to provide an outer side and an inner side integrally. A catalyst reaction portion is formed in the filter portion or the support portion, or as an independent catalyst layer to make noxious components of the gas harmless.

摘要翻译： 允许气体通过的烧结多孔金属过滤器包括具有用于捕获和分离来自待处理气体的灰尘的特定孔的过滤器部分和用于支撑过滤器部分的支撑部分。 支撑部分具有大于过滤器部分的孔的孔，以减少待处理气体的压力损失。 过滤部分包括小直径的金属颗粒，并且支撑部分包括具有比形成金属颗粒的过滤部分更大的直径的金属颗粒。 过滤器部分和支撑部分通过热等静压来烧结两种金属颗粒而形成，以一体地提供外侧和内侧。 催化剂反应部分形成在过滤部分或支撑部分中，或作为独立的催化剂层，以使气体的有害成分无害化。

公开(公告)号：US5625861A

公开(公告)日：1997-04-29

申请号：US544891

申请日：1995-10-18

申请人： Takashi Nishi ,  Akira Kosaka ,  Jun Funakoshi ,  Ryutaro Motoki

发明人： Takashi Nishi ,  Akira Kosaka ,  Jun Funakoshi ,  Ryutaro Motoki

IPC分类号： B01D39/20 ,  B22C9/06 ,  B22F3/11 ,  B22F5/00 ,  B22F1/00

CPC分类号： B01D39/2034 ,  B22C9/06 ,  B22F3/1103 ,  B22F5/007 ,  B22F2998/10

摘要： The porous metal body of the inventtion has a porosity of 7 to 50%, pore sizes of 1 to 500 .mu.m and a pore distribution satisfying the relationship of:(D.sub.95 -D.sub.5)/D.sub.50 .ltoreq.2.5wherein D.sub.5 is the pore size on the cumulative distribution curve of the pore sizes at a cumulative frequency of 5%, D.sub.50 is the pore size on the curve at a cumulative frequency of 50% and D.sub.95 is the pore size on the curve at a cumulative frequency of 95%. The porous body is improved in porosity characteristics and mechanical strength.The porous metal body is prepared by pressing a metal powder to shape and sintering the shaped body by hot isostatic pressing, or alternatively by enclosing a metal powder in a capsule, subjecting the encapsulated powder to a primary sintering treatment in an isostatic medium to form a primary sintered porous body and heat-treating the sintered body with the capsule removed or without removing the capsule.

摘要翻译： 本发明的多孔金属体的孔隙率为7〜50％，孔径为1〜500μm，孔分布满足以下关系：（D95-D5）/ D50 <2.5其中D5为孔径 在累积频率为5％的孔径的累积分布曲线上，D50是累积频率为50％的曲线上的孔径，D95为累积频率为95％的曲线上的孔径。 多孔体的孔隙率特性和机械强度得到改善。 多孔金属体是通过压制金属粉末，通过热等静压来形成和烧结成形体，或者通过将金属粉末包封在胶囊中，使包封的粉末在等静压介质中进行初步烧结处理，形成 初级烧结多孔体，并且在除去胶囊或不除去胶囊之前对烧结体进行热处理。