| 摘要 |
PCT No. PCT/US96/00766 Sec. 371 Date Jul. 13, 1998 Sec. 102(e) Date Jul. 13, 1998 PCT Filed Jan. 19, 1996 PCT Pub. No. WO97/26496 PCT Pub. Date Jul. 24, 1997A forced convection heating apparatus and process for heating glass sheets therewithin includes a housing (200) having an interior region, a conveyor for conveying the glass sheets through the interior region of the housing (200), a gas burner (204) operably associated with the housing (200) for producing hot combustion gases, thereby providing a heat input to the apparatus. An adjustor (210) is operably connected to, and controls, the inputs to the gas burner (204) to vary the heat input, and, thereby, maintain the temperature of the working fluid at a preselected set point. At least one velocity control for controlling the impingement velocity of the working fluid onto the top and/or bottom surfaces of the glass sheet is also provided. The impingement velocity, and thereby the rate of convective heat exchange between the working fluid and the glass sheet, is controlled independently of the heat input to the apparatus.
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