PCBA Tech - The requirements of pcba small batch proofing for workshop environment and personnel

The requirements of PCBA small batch proofing for workshop environment and personnel

The workshop is the main artery of the PCB factory, and most of the production and processing are carried out inside the workshop. For a PCB factory, the environment of the workshop and the quality of its personnel are the key to highlighting its corporate culture and excellence. So today, let's walk into the workshop and learn about the requirements of PCBA's small batch proofing on the workshop environment and personnel.

PCBA small-batch proofing PCBA production equipment and SMT patch processing technology have certain requirements on the power supply, ventilation capacity, temperature, humidity, air cleanliness, anti-static, and the wearing accessories of the production personnel in the workshop. And the workshop environment tends to be clean and tidy, with the purpose of reducing the health hazards to workshop workers such as oil and dust. At the same time, environmental protection and greening are the pursuit and goals of modern development, because the environment of environmental protection and greening can reduce or control the generation of pollution sources. It can be seen that the material particles are relatively large, which mainly affects the visibility in the workshop, which affects the operation of workers in the workshop and the supervision of management personnel. At the same time, visible particles often greatly reduce the service life of the air-conditioning system and the equipment in the workshop.

Next, let's take a look at the specific requirements of the workshop environment.

1. Temperature and humidity requirements;
For the normal operation of the equipment and the high standard requirements for the production process, it is best to control the ambient temperature of the workshop at 23±3 degrees Celsius, and the best when the relative humidity is 45%-70%RH.

2. Ventilation capacity;
Both reflow soldering and wave soldering equipment have exhaust and flue gas emission requirements, and the exhaust fan should be configured according to the equipment requirements. For all hot blast stoves, the minimum flow rate of the exhaust duct is generally required to be 14-15m/min.

3. Power requirements;
The power supply voltage and power meet the requirements of PCBA processing equipment. Voltage stability, generally requires single-phase AC220V (220±10%, 50/60Hz), three-phase AC380V (380±10%, 50/60Hz). If it does not meet the requirements, a regulated power supply must be configured. The power supply is greater than the power consumption of the device. The power supply of the placement machine requires independent grounding. Generally, a three-phase five-wire connection method should be adopted. Because of the high speed of the placement machine, it is easy to produce electromagnetic interference when connected with other equipment, which affects the normal operation and placement accuracy of the placement machine.

Fourth, static protection requirements;

The IC and other precision electronic components involved in PCBA production are often easily damaged by static electricity. Therefore, static protection is also very important. Generally, personnel entering the workshop must wear anti-static overalls, wear work caps, and shoes need to be covered with shoe covers. Anti-static bracelet.

The workshop is the core of the PCB factory, and it is also the "home" that most staff rely on. It is the factory's unshirkable responsibility to ensure the health of the staff. Regular training on the workshop environment and personnel requirements for small batch PCBA proofing is indispensable. Link.