Heat treating apparatus and heat treating method for sheet-like article
A heat treatment device and sheet technology, which is applied to flat products, household appliances, and other household appliances, can solve problems such as uneven temperature of sheets
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Embodiment 1
[0095] figure 1 and figure 2 The outline of the heat treatment apparatus used in this example is shown in .
[0096] The gas introduction part of the heat treatment apparatus used in this embodiment has nozzle boxes 3 of the same shape on the upper side and the lower side of the sheet 7, respectively. The main body of the nozzle box 3 is generally a cuboid, with a length of 1400mm in the MD direction, a width of 3200mm in the TD direction, and a height of 800mm, and the first slit is located at a position 100mm away from the front end of the nozzle box, and the tenth slit is located at a distance from the rear end. Ten slit nozzles are arranged at equal intervals in a position of 100mm. The above-mentioned slit nozzle is designed to have a longitudinal length of 3200 mm, a slit width D of 3 mm, and a distance h from the front end of the slit nozzle to the sheet of 40 mm. direction, and the nozzle angle, which is the acute angle formed by the direction parallel to the direc...
Embodiment 2
[0104] image 3 and Figure 4 The outline of the heat treatment apparatus used in this example is shown in .
[0105]Except that the gas introduction part has five nozzle boxes of the same shape on the upper side and the lower side of the sheet, the main body of each nozzle box 3 is roughly a cube, and the length in the MD direction is 300 mm, the width in the TD direction is 3200 mm, and the height is 800 mm. And there are two slit nozzles, the first slit is arranged on the position of 100mm from the front end of the nozzle box, the second slit is arranged on the position of 100mm from the rear end, and the gap between each nozzle box 3 is Heat treatment was performed in the same manner as in Example 1 except for the gas introduction portion arranged at a distance of 200 mm. And the uniformity of the gas velocity of the nozzle box in the longitudinal direction of the nozzle is ±7%
[0106] The average outlet temperature of the resin sheet is 45°C, and the lateral temperatu...
Embodiment 3
[0108] Heat treatment was performed in the same manner as in Example 1, except that a 150 μm-thick PMMA film was used as a sheet instead of a 5 mm-thick resin sheet sandwiched between 1.5 mm-thick SUS tapes, and the feed rate was 20 m / min.
[0109] The average outlet temperature of the PMMA film is 87°C, and the lateral temperature unevenness is within ±0.5°C. And the value of the average thermal conductivity U at this time is 40W / (m 2 · K).
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Abstract
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