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The smt patch processing factory needs to set up a suitable temperature and humidity meter for monitoring according to the size of the plant during processing.
Speaking of smt patch processing, many friends have heard of it. This is a very popular technology and process in the electronic assembly industry. Generally speaking, the electronic products seen or used are added by PCB circuit boards. Various capacitors are designed according to different circuit diagrams, and these electrical components need different smt chip processing techniques to process. Generally, there are certain requirements for the production workshop when processing.
When processing the smt chip in the PCB board, the manufacturer needs to set a suitable temperature and humidity meter according to the size of the plant for monitoring
Generally, smt patch production workshops have the following requirements for the production environment. First, the load-bearing capacity, vibration, and noise requirements of the plant. The load-bearing capacity of the plant floor should be greater than 8KN/m2; the vibration should be controlled within 70dB, and the larger value should not be greater than 80dB. ; The noise should be controlled within 70dBA; the power supply generally requires single-phase AC220 (220±10%, 0/60Hz), three-phase AC380 (380±10%, 50/60Hz), and the power of the power supply should be more than twice the power consumption. .
The smt patch processing factory needs to set up a suitable temperature and humidity meter for monitoring according to the size of the plant during processing.
Next is the air source requirements. 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. Generally, the pressure is greater than 7kg/cm2. Clean and dry purified air is required, so the compressed air needs to be degreasing, dusting, and water removal treatment. Use stainless steel or pressure-resistant plastic pipes for air ducts.
There are also requirements for exhaust air, and reflow soldering and wave soldering equipment need to be equipped with exhaust fans. For all hot blast stoves, the lower flow rate of the exhaust duct is 500 cubic feet per minute (14.15m3/min).
PCB manufacturers need to set up a suitable temperature and humidity meter for monitoring according to the size of the plant during smt processing
Lighting, the ideal illuminance in the workshop is 800~1200LUX, at least not less than 300LUX. When the illuminance is low, install local lighting in the inspection, repair, measurement and other work areas.
Working environment, keep clean and hygienic, no dust, no corrosive gas in the workshop. The production workshop should have cleanliness control, and the cleanliness should be controlled at: 500,000; the ambient temperature of the production workshop should be 23±3 degree Celsius, which is generally 17～28 degree Celsius, and the relative humidity is 45%～70%RH; The size of the workshop is equipped with a suitable temperature and humidity meter for regular monitoring, and is equipped with facilities for adjusting temperature and humidity.
Through smt patch processing, it can be known that the requirements for the production workshop during patch processing are still quite high, and the requirements for its cleanliness, air source, exhaust and lighting are relatively high.
