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. 09, 2024
Filed:
Jun. 17, 2020
Aecc Beijing Institute of Aeronautical Materials, Beijing, CN;
Haoliang Tian, Beijing, CN;
Yang Yu, Beijing, CN;
Changliang Wang, Beijing, CN;
Mengqiu Guo, Beijing, CN;
Zimin Zhou, Beijing, CN;
Zhihui Tang, Beijing, CN;
Ang Zhang, Beijing, CN;
Yongjing Cui, Beijing, CN;
Tianying Wang, Beijing, CN;
Junguo Gao, Beijing, CN;
AECC BEIJING INSTITUTE OF AERONAUTICAL MATERIALS, Beijing, CN;
Abstract
A method for producing an abrasion-resistant coating on the inner wall of an aluminum alloy workpiece is provide. The steps include mixing a graphene powder and Al powder to obtain a mixed powder; combining and heating the mixed power with a polyvinyl alcohol (PVA) liquid, and performing spray granulation to obtain a low-temperature self-propagating composite; stirring a slurry comprising the low-temperature self-propagating composite and sodium silicate; injecting the slurry into a cylindrical inner cavity of an aluminum alloy workpiece mounted on a horizontal rotary table for rotation, the aluminum alloy workpiece is heated with the rotation at a second temperature of 80-100° C. so that the slurry is uniformly solidified on the cylindrical inner surface of the cylindrical inner cavity; and burning the slurry, after the slurry is uniformly solidified and while the rotation is maintained, with an oxyacetylene flame to form the wear-resistant coating.