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What are the components of the smt production line
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What are the components of the smt production line

What are the components of the SMT production line
SMT is the abbreviation of Surface Mount Technology in English, whICh is calLED surface mount technology in Chinese Surface mount technology is very popular in the electronic processing industry The motherboards of electronic products in daily use are basically manufactured by SMT technology There are many types of surface mount technology These machines are combined into a production line. Each machine completes different processes, and finally the required PCBA is manufactured (extended reading: What does PCB and PCBA mean? PCB PCBA difference? What is the difference?
The Smt production line is fully automatic and sEMI-automatic. Fully automatic means that the machine is basically operated rather than manually. Only a few people can be responsible for the smt production line. At the same time, SMT factories are also divided into three categories: large, medium and SMAll. The following 3 lines are small and 5-10 lines are medium,
Circuit board


The large-scale resettlement factory basically needs more than 10 production lines Each SMT equipment includes different smt production lines The basic smt equipment smt production line that constitutes smt is introduced below
The circuit board loader is located at the front end of the smt production line. The main function is to flow the empty PCB into the solder paste printer for solder paste printing. At present, many factories have realized automatic loading machine.
Solder paste printer
The solder paste printer is located behind the loading machine, printing the solder paste on the bonding pad on the PCB to prepare for subsequent placement;
(Extended reading: how to print solder paste on PCB by SMT chip processing solder paste printer)
SPI Company
Spi is a Solder Paste Inspection machine. It checks the quality of solder paste printing. If it fails, you need to remove the PCB with poor printing, clean it and print again.
chip mounter
SMT is the most important core equipment of SMT Its main function is to install electronIC components on solder paste printing pad to prepare for subsequent reflow soldering;
Reflow soldering
After the mounter completes the installation of electronic components, the electronic components and PCB are only bonded by solder paste. The solder paste needs to be melted at high temperature through reflow soldering, and the electronic components are fixed at the designated pad position of PCB;
Automatic optical inspection
Automatic optical testing is an optical testing instrument. It checks the final quality of PCBA, the quality of electronic components after reflow soldering, possible welding defects, such as grape balls, multi tin, bridges, tombstones, etc., and defective products to avoid subsequent products. Unstable.
Washing machine
The cleaning machine is mainly used to clean the residues and stains on the welding plate, such as welding flux. The washer can be online or offline.
At present, only a few SMT plants do not have automatic SMT production lines, and most of them use automatic production lines

The above is the explanation given by the editor of pcb circuit board company.
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