skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method of producing thermally sprayed metallic coating

Abstract

The cylinder walls of light metal engine blocks are thermally spray coated with a ferrous-based coating using an HVOF device. A ferrous-based wire is fed to the HVOF device to locate a tip end of the wire in a high temperature zone of the device. Jet flows of oxygen and gaseous fuel are fed to the high temperature zone and are combusted to generate heat to melt the tip end. The oxygen is oversupplied in relation to the gaseous fuel. The excess oxygen reacts with and burns a fraction of the ferrous-based feed wire in an exothermic reaction to generate substantial supplemental heat to the HVOF device. The molten/combusted metal is sprayed by the device onto the walls of the cylinder by the jet flow of gases.

Inventors:
 [1];  [2];  [3]
  1. Rochester Hills, MI
  2. Clarkston, MI
  3. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL-NM), Albuquerque, NM
Sponsoring Org.:
USDOE
OSTI Identifier:
935565
Patent Number(s):
6,610,369
Application Number:
10/022,322
Assignee:
General Motors Corporation (Detroit, MI); Sandia National Laboratories (Albuquerque, NM) ALO
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Byrnes, Larry Edward, Kramer, Martin Stephen, and Neiser, Richard A. Method of producing thermally sprayed metallic coating. United States: N. p., 2003. Web.
Byrnes, Larry Edward, Kramer, Martin Stephen, & Neiser, Richard A. Method of producing thermally sprayed metallic coating. United States.
Byrnes, Larry Edward, Kramer, Martin Stephen, and Neiser, Richard A. Tue . "Method of producing thermally sprayed metallic coating". United States. https://www.osti.gov/servlets/purl/935565.
@article{osti_935565,
title = {Method of producing thermally sprayed metallic coating},
author = {Byrnes, Larry Edward and Kramer, Martin Stephen and Neiser, Richard A},
abstractNote = {The cylinder walls of light metal engine blocks are thermally spray coated with a ferrous-based coating using an HVOF device. A ferrous-based wire is fed to the HVOF device to locate a tip end of the wire in a high temperature zone of the device. Jet flows of oxygen and gaseous fuel are fed to the high temperature zone and are combusted to generate heat to melt the tip end. The oxygen is oversupplied in relation to the gaseous fuel. The excess oxygen reacts with and burns a fraction of the ferrous-based feed wire in an exothermic reaction to generate substantial supplemental heat to the HVOF device. The molten/combusted metal is sprayed by the device onto the walls of the cylinder by the jet flow of gases.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {8}
}

Patent:

Save / Share: