| 摘要 |
PURPOSE:To eliminate personal error in making the test in the title by catching sound made by explosion of a test piece due to the heat from solder and changing the sound into electric current with a controller and displaying the time of explosion on a display device and also recording it with a printer. CONSTITUTION:A test piece is set at the test piece box 1 of a testing device, and it is pushed out by a test piece supplier 2, and seized by a test piece grabbing device. A test piece charger 4 rotates to place the test piece on a solder bath. When the test piece explodes by the heat of the solder, a sound collector 7 catches the sound of explosion, and the sound is changed into electric current by means of a controller, and the time of explosing is displayed on a display device 8 and recorded by a printer 9. A testing device as described above can eliminate personal error when a person watches the solder bath face and notes delicate change on it in the conventional testing. |
