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:
Mar. 16, 2021
Filed:
Dec. 05, 2019
No.59 Institute of China Ordnance Industry, Chongqing, CN;
Qiang Chen, Chongqing, CN;
Yuanyuan Wan, Chongqing, CN;
Zhihui Xing, Chongqing, CN;
Gaozhan Zhao, Chongqing, CN;
Jianquan Tao, Chongqing, CN;
Zhiwei Huang, Chongqing, CN;
Ming Li, Chongqing, CN;
Yanbin Wang, Chongqing, CN;
Shuxin Chai, Chongqing, CN;
Hong Zhan, Chongqing, CN;
Maochuan Wang, Chongqing, CN;
Xiaohui Lin, Chongqing, CN;
No.59 Institute of China Ordnance Industry, Chongqing, CN;
Abstract
The application provides a plaster casting mold fabrication method for a complicated structure aluminum alloy casting with a large inner cavity and a thin wall, in which, a wax pattern is cleaned with a mixture; closed blind cavity and large plane unbeneficial to plaster mold-filling of the wax pattern are used to exhaust air by using vent holes and waterproof-breathable membranes in cooperation with each other; under pressure difference, plaster powder and mixed aqueous solution are vertically splashed and mixed in a mixing tank to reduce dust discharge; asynchronous mixing and grouting can be realized by left and right mixing tanks in an upper tank of a vacuum tank. The present application can effectively remove the surface parting agent, increase the wettability of the plaster paste and the wax pattern surface, and improve the surface finish of the casting mold.