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:
Apr. 08, 2025
Filed:
Sep. 12, 2019
Qingdao Npa Industry Co., Ltd., Pingdu, CN;
Heli Luo, Beijing, CN;
Xinglei Wang, Pingdu, CN;
Shangping Li, Beijing, CN;
Zhaoxiong Gu, Pingdu, CN;
Jiantao Wang, Beijing, CN;
Lijuan Wei, Pingdu, CN;
Fajie Yin, Beijing, CN;
Zhenhua Wang, Pingdu, CN;
QINGDAO NPA INDUSTRY CO., LTD., Pingdu, CN;
Abstract
The present disclosure relates to an oxidation-resistant heat-resistant alloy and a preparing method. The oxidation-resistant heat-resistant alloy of the present disclosure, by mass percentage, includes: 2.5%-6% of Al, 24%-30% of Cr, 0.3%-0.55% of C, 30%-50% of Ni, 2%-8% of W, 0.01%-0.2% of Ti, 0.01%-0.2% of Zr, 0.01%-0.4% of Hf, 0.01%-0.2% of Y, 0.01%-0.2% of V, N<0.05%, O<0.003%, S<0.003%, and Si<0.5%, the balance being Fe and inevitable impurities; wherein merely one of Ti and V is comprised. The method for preparing the oxidation-resistant heat-resistant alloy includes: smelting with inactive element materials→refining→adding mixed rare earth→adding slag→alloying active elements.