초록 ▼

An apparatus for making composite sheets that are homogeneous, dense, and have an even surface. The apparatus comprises an oscillating plate unit that vibrates in a direction transverse to a belt means. Composite pre-mix is deposited on the conveyor belt which draws it under the oscillating plate. T

An apparatus for making composite sheets that are homogeneous, dense, and have an even surface. The apparatus comprises an oscillating plate unit that vibrates in a direction transverse to a belt means. Composite pre-mix is deposited on the conveyor belt which draws it under the oscillating plate. The oscillating plate has three sections: a curved plate section; an inclined plate section and a flat plate section. The composite pre-mix is metered by the curved plate section, compacted by the inclined plate section and maintained compacted by the flat plate section. These thus formed composite sheets may be cured and are particularly adapted for use in fuel cell structures such as electrode substrates.

대표청구항 ▼

A fuel cell manufacturing apparatus for making composite sheets comprising a movable belt means and a metering member that is separated from the belt means by a distance at least equal to a predetermined final thickness of the composite sheet, said metering member particularly adapted to vibration i

A fuel cell manufacturing apparatus for making composite sheets comprising a movable belt means and a metering member that is separated from the belt means by a distance at least equal to a predetermined final thickness of the composite sheet, said metering member particularly adapted to vibration in a direction transverse to the belt means, the metering member comprising: (a) a curved plate section that is at its closest point to the belt less than 120% of the thickness of the predetermined final thickness; (b) an inclined plate section, contiguous to said curved plate section at said closest point, wherein the inclined plate section slopes towards the belt from the curved plate section to a second point which is separated from the belt means by a distance substantially equal to the predetermined final thickness of the composite sheet; (c) a flat plate section contiguous to said inclined plate section at said second point, wherein said flat plate section is both parallel to the belt means and separated from the belt means by a distance substantially equal to the predetermined final thickness of the composite sheet; (d) said metering member sections capable of oscillating in opposite directions transverse to the belt means; and (e) means for oscillating said metering member sections.