Publish Time: 2022-03-28 Origin: Site
SMT production line can be divided into Full-auto SMT Production Line and semi-automatic production line according to the degree of automation; according to the scale of the production line, it can be divided into large, medium and small production lines. Next, the key production process of the Full-auto SMT Production Line will be introduced in detail.
This is the content list:
l What is the basic composition of the SMT Production Line?
l What is the basic process flow of Full-auto SMT Production Line?
l What is the production process of Full-auto SMT Production Line?
Full-auto SMT Production Line means that the entire production line equipment is fully automatic. All production equipment is connected into an automatic line through automatic board loading machine, buffer link and unloading machine; semi-automatic production line refers to the main production equipment is not connected or Not fully connected, such as the printing press is semi-automatic, requiring manual printing or manual loading and unloading of printed boards.
Screen printing>mounting>curing>reflow soldering>cleaning>testing>rework
l 1. The surface mount process of Full-auto SMT Production Line
① Single-side assembly: all surface mount components are on one side of the PCB, incoming inspection-solder paste mixing-silk screen solder paste-patch-reflow soldering
② Double-sided assembly; surface mount components are respectively on the A and B sides of the PCB; incoming inspection-PCB A side silk screen solder paste-SMD-A side reflow soldering-flip board-PCB B side silk screen solder paste- Patch-B side reflow soldering-cleaning-inspection-rework
l 2. Mixed assembly process of Full-auto SMT Production Line
① Single-side mixed assembly process: plug-ins and surface mount components are all on the A side of the PCB, incoming inspection-solder paste stirring-PCB A side silk screen solder paste-patch-A side reflow soldering-PCB A side plug-in -Wave soldering or dip soldering, a small number of plug-ins can be manually soldered-cleaning-inspection-repair, paste first and then insert
② Double-sided mixed assembly process: Full-auto SMT Production Line surface mount components are on the A side of the PCB, and the plug-in is on the B side of the PCB. Incoming material inspection-solder paste mixing-PCB A side silk screen solder paste-SMD-reflow soldering-PCB B side plug-in-wave soldering, a small number of plug-ins can be manually soldered-cleaning-inspection-repair; incoming material detection-PCB A-side silk-screen solder paste-patch-manually apply solder paste to the pad of the plug-in on the A side of the PCB-PCB plug-in on the B side-reflow soldering-cleaning-inspection-rework. The surface mount components are on the A and B sides of the PCB, and the plug-ins are on either side or both sides of the PCB. First, perform the reflow soldering of the surface mount components on the A and B sides of the double-sided PCB according to the double-sided assembly method, and then proceed The plug-in on both sides can be welded manually.
Since its establishment, ETA has always adhered to the direction of R&D and continues to use new technologies as the company's R&D direction. At present, it has a research and development team of 15 people, among which the intelligent manufacturing thermal equipment represented by Full-auto SMT Production Line has reached the international first-class level and began to be deployed in 2016. Intelligent flexible manufacturing software has been used in many international EMS and automotive electronics companies. Within the overall framework of the future smart factory, self-developed smart devices will be gradually added to meet future smart needs.