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Methods for manufacturing cast components with integral thermal barrier coatings

A technology for thermal barrier coatings and components, applied in the direction of manufacturing tools, coatings, casting and molding equipment, etc., can solve problems such as affecting the efficiency of components

Inactive Publication Date: 2020-06-05
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Uneven temperature distribution affects component efficiency

Method used

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  • Methods for manufacturing cast components with integral thermal barrier coatings
  • Methods for manufacturing cast components with integral thermal barrier coatings
  • Methods for manufacturing cast components with integral thermal barrier coatings

Examples

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Embodiment Construction

[0009] Embodiments of the disclosure are described herein. It should be understood, however, that the disclosed embodiments are merely examples and that other embodiments may take various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. As will be understood by persons of ordinary skill in the art, various features shown and described with reference to any one figure may be combined with features shown in one or more other figures to create embodiments not explicitly shown or described. Combinations of features shown provide representative embodiments for typical applications. However, various combinations and modifications of the features consistent ...

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PUM

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Abstract

The invention relates to methods for manufacturing cast components with integral thermal barrier coatings. A method for applying a thermal barrier coating (TBC) to a surface of a cast component includes providing a core, applying the TBC to the core to form a coated core, disposing the coated core within a casting mold, casting metal around at least a portion of the coated core to form a casting intermediary, and removing the core from the casting intermediary to form a cast component. The TBC includes hollow microspheres comprising metal, glass, and / or ceramic materials. The hollow microspheres can have an average diameter of about 10 to about 100 um. The component can be an automotive component, such as an engine intake assembly, an engine exhaust manifold, an engine block, and / or an engine cylinder head. The surface of the cast component can be one or more surfaces which define an engine intake passage, an engine exhaust passage, and an engine combustion chamber.

Description

Background technique [0001] Some vehicles include engine assemblies for propulsion. Engine components may include an internal combustion engine and a fuel injection system. Internal combustion engines include one or more cylinders. Each cylinder defines a combustion chamber. During operation, an internal combustion engine combusts an air / fuel mixture in a combustion chamber in order to move a piston disposed in a cylinder. [0002] Based on the configuration of the engine assembly and the function of the various components, there may be constraints on maintaining the temperature environment in the engine assembly. Uneven temperature distribution can affect the efficiency of components. In internal combustion engines, the coating isolates the hot combustion gases from the cold, cold water engine block to avoid energy loss by transferring heat from the combustion gases to the cold water. Additionally, the coating should cool rapidly during the intake cycle so as not to heat...

Claims

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Application Information

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IPC IPC(8): B22C9/10B22C9/22B22C3/00
CPCB22C3/00B22C9/10B22C9/22B22D19/08F01N13/102F01N13/14F01N13/1861F01N2490/06F02B77/02F02B77/11F02F1/18F02M35/10347F02M35/104F02F2200/06F02F1/004
Inventor M·J·沃克P·M·奈特R·P·达雷特
Owner GM GLOBAL TECH OPERATIONS LLC
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