Thermal spray method for coating cylinder bores for internal combustion engines
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United States of America Patent
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Aug 2, 1994
Grant Date -
N/A
app pub date -
Jan 22, 1993
filing date -
Jan 22, 1993
priority date (Note) -
Expired
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Abstract
A tenacious wear resistant coating is applied with a high velocity oxygen-fuel thermal spray gun using a composite powder of aluminum and an iron base metal. The metal may be iron-chromium, iron-molybdenum, cast iron or a combination. A particular combination is a blend of a first powder and a second powder, the first powder consisting of a composite of aluminum subparticles and iron-molybdenum alloy subparticles, and the second powder consisting of a composite of aluminum subparticles and cast iron subparticles. An internal combustion engine block has such a coating applied to the cylinder walls.
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