source:Industry News release time:2022-06-17 Article author:yu Popular:pcb
SMT production equipment is a high-precision mechatronics equipment. The equipment and process materials have certain requirements on the cleanliness, humidity and temperature of the environment. In order to ensure the normal operation and assembly quality of the equipment, the working environment has the following requirements:
1. The load-bearing capacity, vibration and noise of the workshop require the load-bearing capacity of the workshop floor
It should be greater than 8KN/m2, the vibration should be controlled within 70dB, and the maximum value should not exceed 80dB and the noise should be controlled within 70dBA.
2. Power
Generally, single-phase AC220 (220±10%, 0/60Hz), three-phase AC380 (380±10%, 50/60Hz) are required, and the power of the power supply should be more than double the power consumption.
3. Air source
The pressure of the air source is configured according to the requirements of the equipment. The air source of the factory can be used, or an oil-free compressed air machine can be configured separately. The general pressure is greater than 7kg/cm2. Clean and dry purified air is required, so the compressed air needs to be de-oiled, de-dusted, and de-watered. Use stainless steel or pressure-resistant plastic pipes for air ducts.
4. Exhaust
Exhaust fans are required for reflow and wave soldering equipment. For a full hot blast stove, the minimum flow value for the exhaust duct is 500 cubic feet per minute (14.15m3/min)
5. Lighting
The ideal illumination in the workshop is 800~1200LUX, at least not less than 300LUX. When the illumination is low, local lighting should be installed in the inspection, repair, measurement and other work areas.
6. Working environment
The workshop is kept clean, free of dust and corrosive gas. The production workshop should have cleanliness control, and the cleanliness should be controlled at the level of 500,000. The best ambient temperature in the production workshop is 23±3°C, generally 17-28°C, and the relative humidity is 45%-70%RH. According to the size of the workshop, a suitable temperature and humidity meter is set up for regular monitoring, and it is equipped with an adjustable temperature controller. Humidity facility.
Implement proper management of the working environment and comprehensively strengthen the control of PCBA daily operations to ensure quality and ensure that the environment will not affect product compliance. Improve efficiency and brew a good working environment.
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