Method for preparing composite coating


Application Number: 00108699
Application Date: 2000.05.18
Publication Number: 1301884
Publication Date: 2001.07.04
Priority Information: 1999/12/24 CN 99126903.9
International: B05D7/14;C23C4/12;C23C24/00;C23C26/02
Applicant(s) Name: Pang Xiumei
Address:
Inventor(s) Name: Pang Xiumei;Tan Hongjian
Patent Agency Code: 11038
Patent Agent: zheng xiuzhe
Abstract The cleaned metal matrix is clad with metal screen, ceramic net or spongy foamed material with enough gap between the workpiece and the netted structure. Dispersed particles are filled into the gap before the feeding port is sealed, and then after the netted structure is fixed, the dispersed particles are converted into the composite coat on the workpiece through hot working processing, such as dipped braze welding and thermal spraying. Or, through casting process to pour metal into casting mold with netted structure fixed disperse particles in outer layer, the casting with composite coat is produced. To raise the quality of the composite coat, the hot working process may be performed in vacuum state or under protecting gas atmosphere.