A high temperature resistant insulating coating material coated on a metal surface and a preparation method thereof
By using materials such as barium oxide and silica, and mixing them with kaolin to form glaze, the problem of failure of existing insulating coating materials at high temperatures was solved, and a coating material with good insulating properties at high temperatures above 1000°C was prepared.
Patent Information
- Application Number
- CN202411779793.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-04-04
AI Technical Summary
The existing insulating coating materials lose adhesion and insulation capacity at high temperatures above 600℃, and cannot meet the needs of high temperature application scenarios above 1000℃.
Barium oxide BaO and silica SiO2 are used as the main sintered raw materials. By adding auxiliary raw materials, uniformly mixing and high-temperature sintering, a high-temperature resistant composite oxide glass frit is prepared, and mixed with kaolin and water to form a glaze. The excess water is separated by precipitation to prepare a high-temperature resistant insulating coating material.
The prepared insulating coating material still maintains good insulation at a high temperature of 1150°C. It has no cracks or peeling after three cycle temperature impacts, and still has good insulation performance at a high temperature to meet the design needs.