The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2018
Filed:
Jun. 30, 2014
Intermet Technologies Chengdu Co., Ltd., Chengdu, Sichuan, CN;
Intermet Technologies Chengdu Co., Ltd., Chengdu, Sichuan, CN;
Abstract
Disclosed are a sintered Fe—Al based alloy porous material with high temperature oxidation resistance and a filter element using same. The porous material has a porosity of 30-60% and an average pore diameter of 0.5-50 μm, and has that: a) it mainly consists of three elements of Fe, Al and Cr, and the total weight of these three elements accounts for at least 90% of the weight of the porous material, wherein the weight of Fe is 60-85% of the total weight of Fe and Al, and the weight of Cr is 10-30% of the total weight of Fe, Al and Cr; b) the Cr in the porous material mainly presents in the form of a chromium compound of a Fe—Al based compound, or mainly presents in the form of a chromium compound of the Fe—Al based compound and FeCr, and is almost uniformly dispersed in the porous material; and c) it has a tensile strength≥45 MPa, an air flux≥80 m/m·KPa·h for the sintered Fe—Al based alloy porous material with a thickness≤5 mm, a weight loss rate of at most 0.5% after being immersed into a NaOH solution with a mass fraction of 10% at room temperature for 15 days, and a material weight gain rate of at most 0.25% after being kept at 1000° C. in air for 90 hours.