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What are the functions of the process equipment of Semi-auto SMT Production Line?

Views: 0     Author: Dongguan Intercontinental Technology Co.,Ltd.     Publish Time: 2021-07-30      Origin: www.smtfactory.com

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In the production work of Semi-auto SMT Production Line, many special production equipment is involved. Next, let’s talk about the specific uses and functions of this equipment.

 

precision pick and place

What is the role of templates in the Semi-auto SMT Production Line?

What is the role of silk screen in Semi-auto SMT Production Line?

What is the role of placement in the Semi-auto SMT Production Line?

What is the role of reflow soldering in Semi-auto SMT Production Line?

 

What is the role of templates in the Semi-auto SMT Production Line?

First, determine whether to process the template according to the designed Semi-auto SMT Production Line PCB. If the SMD components on the PCB are only resistors, capacitors, and the package is 1206 or more, you do not need to make a template, and use a syringe or automatic dispensing equipment. Solder paste coating; when the PCB contains SOT, SOP, PQFP, PLCC and BGA packaged chips and resistors and capacitors for packages below 0805, a template must be made.

 

What is the role of silk screen in Semi-auto SMT Production Line?

The function of screen printing in Semi-auto SMT Production Line is to use a squeegee to print the solder paste or patch glue onto the PCB pads to prepare for the placement of components. The equipment used is a manual screen printing table, template and squeegee, which are located at the forefront of the Semi-auto SMT Production Line. It is recommended to use a medium screen printing table and a precision semi-automatic screen printing machine to fix the template on the screen printing table.

 

Determine the position of the PCB of the Semi-auto SMT Production Line on the screen printing platform through the up and down and left and right knobs on the manual screen printing table, and fix this position; then place the PCB to be coated between the screen printing platform and the template. Place the solder paste on the screen board, keep the template parallel to the PCB, and use a scraper to evenly coat the solder paste on the PCB. In the process of use, pay attention to cleaning the template of Semi-auto SMT Production Line with alcohol in time to prevent tin The paste blocks the leaking holes of the template.

 

What is the role of placement in the Semi-auto SMT Production Line?

The function of mounting in the Semi-auto SMT Production Line is to accurately install surface mount components to a fixed position on the PCB. The equipment used is a placement machine, a vacuum suction pen or tweezers, located behind the screen printing table in the Semi-auto SMT Production Line. For the laboratory or small batches, it is generally recommended to use a double-tip anti-static vacuum suction pen. In order to solve the problem of high-precision chip placement and alignment, it is recommended to use South Korea's Samsung automatic multi-function high-precision placement machine.

 

What is the role of reflow soldering in Semi-auto SMT Production Line?

The role of reflow soldering in the Semi-auto SMT Production Line is to melt the solder paste, so that the surface mount components and the PCB are firmly brazed to achieve the electrical performance required by the design and are precisely controlled in accordance with the international standard curve, which can effectively prevent Thermal damage and deformation of PCB and components, the equipment used is a reflow oven, located behind the placement machine in the Semi-auto SMT Production Line. 


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