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Ex-factory inspection method of Dongxingyue Cooling Fan
Date：2020/4/13 Views：1946 【BACK】
Our Cooling Fan in the factory before the finished product inspection procedures and methods, then we look at the cooling fan inspection methods and order? 1. Frame, visual can not have deformation defects, serious shrinkage, burrs and surface oil, etc. . 2. Wiring, visual can not have broken, terminal off, line length, line skin serious scald. 3. Other, visual can not have obvious poor appearance and visual raw material specifications and models are correct. 4. Use caliper to confirm the aperture of frame and steel ruler to confirm the line length of frame. 5. PULL GAP, hand-pulled Fan Blade will not fall off and gap normal, fan blade toward the top of the lower hand can be completely absorbed without floating gap. 6. Dial Pole, Fan Blade concave point stop at a pole, electrify can start, then dial fan blade to the next pole electrify retest can also start. Kill. Current, put the Fan after electrifying to confirm whether the current is in the specification. 8. Speed, power on vertical cooling fan to confirm whether the speed is over, feel the normal air flow and air direction meet specifications. 9. Pass waveform, computer judgment, visual confirmation of current and signal wave frequency and cycle normal. 10. Super-frame, left-handed frame, in the glass side from bottom to bottom scraping, and then rotate 90 degrees retest again, test speed waveform is good, fan blade hit the glass or stop moving fan blade out of the frame, that is bad. Kill. The hearing distance of the abnormal sound ear was determined by ear hearing: 8 ~ 12cm below 5cm; 5 cm) or more is 12 ~ 20 cm. 12. Feel test, Middle Finger and thumb guide hold frame, turn the fan gently or 45 vertical, feel vibration degree judgment: Vibration Judgment According to vibration sample; Test Fan feel: Fan Blade movement can not have beat feeling. 13. Lock power off, power on, hand pressure fan blade, make it stop at a pole, a few seconds after the current value on the display screen should return to zero, a few seconds after the automatic power on, and can read the current value, otherwise judged as defective. 14. Withstand voltage test, reference to the voltage tester SIP test. 15. Other functions, according to the finished product specification confirmation function: Lock Power Failure Protection, FG / RD, PWM speed regulation, soft start, waterproof grade. The above is Dong Xing Yue introduced the cooling fan factory inspection method, if you want to know more cooling fan knowledge can click:http://www.dxymotors.com
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