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At present, SMT technology mounter is the core equipment in SMT Mounter manufacturing and operation in many PCBA manufacturer. Fully automatic mounter is used to realize high-speed, high-precision and fully automatic Mounter components. It is the most critical and complex equipment in the whole SMT production. Mounter is the main equipment in SMT production line, The mounter has developed from the early low-speed mechanical machine to the mounter in high-speed optics, and has developed into a modular, flexible and multi-functional connection.
As a high-tech product, safe and correct operation of SMT Mounter is very important for machines and personnel. The most basic thing for safe operation of SMT Mounter is that the operator should have the most accurate judgment and follow the following basic safety rules.
The technical equipment operators of PCBA manufacturer shall carry out training on the operation steps of SMT technical equipment in strict accordance with the operation specifications and correct methods, check the machine, replace parts or turn off the power supply during maintenance and internal adjustment (the machine maintenance can be carried out only when the emergency button or power supply is pressed, and "read coordinates" And the machine is in your hand during adjustment to stop at any time to ensure "interlocking" The safety device stops the machine at any time. The safety detection on the machine cannot be skipped or short circuited. Otherwise, it is easy to cause personal or machine safety accidents. Only one SMT technical operator is allowed to operate one machine in the production process of SMT patch manufacturing technology equipment. During the operation, all parts of the body, such as hands and heads, must be carried out outside the working range of the machine, The machine must be properly grounded (not connected to the neutral line). Do not use the machine in a flammable gas or extremely dirty environment.
In addition, it should also be noted that SMT patch manufacturers must strictly prohibit untrained SMT technicians from operating on the machine. Safety first, SMT equipment operators should operate the machine in strict accordance with the operation specifications, otherwise the machine will be damaged and personal safety will be endangered. SMT equipment technical operators should be careful, careful and efficient.
The inspection before SMT chip manufacturing is the primary condition to ensure the quality of PCBA chip products. The quality of electronic components, printed PCB circuit board and SMT chip materials directly affects the quality of PCB chip finished products. Therefore, the electrical performance parameters of electronic components and the solderability of welding ends and pins, the producibility design of printed PCB circuit board and the solderability of pads, solder paste and patch adhesive The quality of SMT chip materials such as rod solder, flux and cleaning agent should have strict incoming material quality inspection and management system. The quality problems of electronic components, printed PCBA circuit boards and SMT chip materials are difficult or even impossible to solve in the later process.
The quality inspector of SMT workshop of PCB Factory can do the following appearance inspection:
1. Visually or with a magnifying glass, check whether the welding end or pin surface of PCBA electronic components is oxidized or contaminated.
2. The nominal value, specification, model, accuracy and overall dimension of electronic components shall comply with the product process requirements.
