Method of marking hot material
AssigneeKawasaki Steel Corporation
InventorsAkimune Sato, Tsuyoshi Tsuchida
Life of this patent
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Abstract
A combustible stencil held by holders is disposed at a position some distance apart from the end face of a hot material; immediately thereafter, a coating composition is sprayed onto the hot material through perforations of the stencil from behind to carry out the marking; the stencil is used only once and burned by the potential heat of the hot material upon marking; and a new stencil is used each time for marking. The combustion starting time is controlled by previously moistening the stencil as necessary.
Claims6
A method of marking a hot material which is determined to be at a substantially high temperature, comprising the following steps in a marking sequence.
- providing a stencil composed entirely of a readily incineratable material which is combustible at a temperature which is lower than the temperature of said hot material;
- providing said stencil with apertures representing identifying indicia for the subsequent purpose of stenciling the identifying indicia on a surface of said hot material;
- holding the stencil with stencil holders at a predeterminedd distance from said surface;
- spraying immediately thereafter a coating composition onto the hot material from behind and through the apertures in the stencil so as to transfer the indicia to said surface of said hot material;
- positioning said stencil sufficiently close to said hot material to cause the stencil material to heat-up to a temperature higher than its combustible temperature;
- and
- completely incinerating said stencil upon sufficient exposure to the heat from said hot material for each marking sequence which is performed.
Dependencies are inferred from the claim text.