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FLOW SOLDERING DEVICE PROVIDED WITH WARP CORRECTION MECHANISM OF ELECTRONIC CIRUIT BOARD AND WARP CORRECTION METHOD
FLOW SOLDERING DEVICE PROVIDED WITH WARP CORRECTION MECHANISM OF ELECTRONIC CIRUIT BOARD AND WARP CORRECTION METHOD
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机译:具有电子电路板的WARP校正机构的流焊装置及WARP校正方法
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摘要
PROBLEM TO BE SOLVED: To highly precisely correct the warp of a board, which occurs by flow soldering, to a flat state by holding the electronic circuit board to the flat state by backup pins and correction jigs and cooling the electronic circuit board by a cooling fan so that it becomes not more than a glass transfer temperature. ;SOLUTION: A board heating process is provided in the middle of a process where the temperature of a board 1 drops by natural cooling after soldering for correcting the warp of the board 1 and the board 1 is kept to be not less than a glass transfer temperature. Then, a board correction process is installed immediately after and the board 1 is sandwiched by backup pins 5 and correction pins 6 from a vertical direction in the process, and it is kept until the temperature becomes not more than the glass transfer temperature at which the board 1 is cured. The correction pins 6 and the backup pins 5 are installed on moving means 9A and 9B, they move to positions where they do not interfere with an electronic part 2 and they press the board 1. The warp of the board 1 is eliminated and it can be corrected to a flat state with such constitution.;COPYRIGHT: (C)2000,JPO
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