Clean and disassemble the surface of the circuit board and SMT chip equipment, so as not to cause the internal heat dissipation of the machine due to dust and scale, resulting in overheating of the electrical part and burning out ;

The places to pay attention to are: whether the filter core itself is clean, deformed and damaged

Siemens rotating head gas path structure is mainly composed of real air path, blow gas path, vacuum/blow gas conversion unit three parts (Figure 1). True air path: including vacuum generator, vacuum distributor, vacuum detection. After four channels of compressed air pass through the vacuum generator, two channels of vacuum are formed, which are respectively connected to the vacuum distributor through two pipes of one and one

Includes five points: 1> Component installation type; 2> Process flow; 3> Welding process; 4>CB production process; 5> Cleaning process of the mounting plate.

SMT technology in SMT production usually refers to a certain way to accurately paste the chip components to the specified position of the PCB, the process is called "Pick and Place" in English, obviously it refers to the two actions of absorbing/picking and placing

Working Introduction WI (WI) The composition of working introduction varies according to the product structure and processing procedure