 Steel product with heat-resistant, corrosion-resistant plating layers |
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| Thermo-transfer ribbon |
| OF THE INVENTION According to the invention, the initially named thermo-transfer ribbon is refined ... |
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| Apparatus for cooling strip like material |
| I claim: 1. An apparatus for cooling varying width relatively flat strip produced by a hot strip ... |
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| Galvanic element |
| I claim: 1. A galvanic element having a negative electrode of a strongly electro-positive metal, a ... |
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| Battery |
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| Lithium halide primary cell having end of life indicator means |
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| Additive for zinc electrodes |
| We claim: 1. A zinc electrode for a cell having KOH or NaOH electrolyte, said electrode containing ... |
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| Recording medium |
| An object of the present invention is to provide a magnetic recording medium comprising an ... |
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| Low-loss and low-torque ACSR conductors |
| We claim: 1. An ACSR conductor having three or more layers of aluminum conductor strands helically ... |
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Apparatus for metallization of fibers
| Details |
Inventors: Schladitz, Hermann J.;
Assignee: University of Virginia (Charlottesville, VA)
Primary Examiner: Kaplan; Morris
Assistant Examiner:
Attorney, Agent or Firm: Oblon, Fisher, Spivak, McClelland & Maier
A method for decontaminating and subsequently metallizing a filament comprises: Passing the filament through the inner tube of a first chamber for decontamination which comprises two concentric tubes having an annular space therebetween, the inner tube of which has a series of fine holes therein; wherein said inner tube is heated and said annular space contains an inert gas such that said gas flows through said holes in heated jet streams which impinge upon said filament, thereby heating and decontaminating said filament; Passing said heated and decontaminated filament into a second chamber for metallization also comprising two concentric tubes having an annular space therebetween, the inner tube of which has a series of fine holes therein; wherein said inner tube of said second chamber is heated and said annular space of said second chamber contains a gaseous, thermally decomposable metal compound such that said gaseous metal compound flows through said holes in heated jet streams and impinges upon said heated and decontaminated filament, thereby thermally decomposing said metal compound and metallizing said filament. An apparatus for carrying out this method is also provided, a key feature of which is the use of a thin membrane with a small pinhole to separate the two chambers. |
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DETAILED DESCRIPTION Accordingly, it is an object of the present invention to provide an apparatus for effectively decontaminating substrates, especially fibrous substrates, prior to metallization.
It is another object of this invention to provide such an apparatus which simultaneously enables metallization of the decontaminated substrate such that a smooth, continuous, uniform and non-porous coating results.
It is still another object of this invention to provide such an apparatus which enables decontamination and metallization to be performed continuously in a short period of time with minimal energy and materials consumption.
Briefly, these and other objects of this invention which will hereinafter become clear have been attained by providing an apparatus whereby to practice a method for decontaminating and subsequently metallizing a filament which comprises: passing the filament through the inner tube of a first chamber for decontamination which comprises two concentric tubes having an annular space therebetween, the inner tube of which has a series of fine holes therein; wherein said inner tube is heated and said annular space contains an inert gas such that said gas flows through said holes in heated jet streams which impinge upon said filament, thereby heating and decontaminating said filament; passing said heated and decontaminated filament into a second chamber for metallization also comprising two concentric tubes having an annular space therebetween, the inner tube of which has a series of fine holes therein; wherein said inner tube of said second chamber is heated and said annular space of said second chamber contains a gaseous, thermally decomposable metal compound such that said gaseous metal compound flows through said holes in heated jet streams and impinges upon said heated and decontaminated filament, thereby thermally decomposing said metal compound and metallizing said filament.
The apparatus of this invention comprises suitable means for effecting the method as described below
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Fuel Cells 
