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US 6,474,103 B1Granted
Glass spraying method
AssigneeKabushiki Kaisha Nakashima
InventorMikio Nakashima
Life of this patent
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Abstract
The method comprises a preheating step to heat a metal base 10 entirely, a pre-spraying step to for a glass pre-coating 13 by pre-spraying a glass material onto the surface of the preheated base, a main-spraying step to form a glass coating 14 by additionally heating the glass pre-coating formed in the previous step and main-spraying a like glass material onto the surface.
Claims7
A glass spraying method comprising,
- a preheating step to heat a metallic base entirely,
- a pre-spraying step to form a glass pre-coating by pre-spraying a glass material onto the surface of the preheated base, and
- a main-spraying step to form a glass coating by additionally heating the glass pre-coating formed in the previous step and main-spraying a like glass material onto the surface thereof.
A glass spraying method for a metallic roll, comprising the steps of:
- heating the metallic roll to a first predetermined temperature in a range of 100° C. and 400° C.;
- spraying a glass material onto a surface of the metallic roll heated at the first predetermined temperature to form a first glass coating thereon;
- heating the metallic roll having the first glass coating formed on the surface to a second predetermined temperature in a range of 600° C. and 1000° C.;
- and
- spraying additional glass material onto the surface of the metallic roll heated at the second predetermined temperature to form a second glass coating thereon.
2 more elements
Dependencies are inferred from the claim text.