SMT important parts and solder paste printing machine
SMT patch for the most important position
In order to better improve the working effICiency of SMT placement, Hefei resettlement must conduct a detaiLED assesSMEnt of the staffing and machine proportion of each link and position What is the most important position in SMT processing? Of course, if one stroke is missing, it will not work Today, we will analyze with you:
First of all, I think it is solder paste printing, because the quality of solder paste printing directly determines whether the quality of subsequent products can meet customer requirements. Whether the product is qualified is equivalent to a math problem. If the first step is wrong, then the whole result must be wrong.
Of course, some people will say that there are more high-quality interventions in the repair process? Doesn't it matter? Each is important. There is no additional work in smt. Operators and technicians are required to cooperate closely in the placement process to reduce the placement accuracy and error to almost zero, so as to ensure that there are no errors, omissions and reflections. In fact, the overall quality is not a problem.
Circuit board

Especially for the 0201 equipment, under the condition that the current equipment accuracy can generally meet the requirements of 01005 precision placement, as long as attention is paid, there is no wiring problem.
In my opinion, the most important position and link in SMT chip processing is solder paste printing.
Maintenance of SMT solder Paste Printer
There are many factors affecting printing quality, such as solder paste quality, template quality, SMT printing process parameters, ambient temperature, humidity and equipment accuracy. In fact, we can see from all these factors that affect the printing quality that all problems have a lot to do with our equipment.
The quality of solder paste affects printing: The quality of solder paste affects the precision of the printing machine. The quality of the model is the key to testing our equipment, so today I will share with you the maintenance of SMT solder paste printing machine! Because in the eyes of ordinary people, this machine may run out and stop. In fact, no matter where you are, when the production of the product or the end of the day, you must clean the template and scraper. Let's share the maintenance process of SMT solder paste printer with you. I hope it can help you.
1. Remove the scraper, clean it with a special wiping paper DIPped in absolute ethanol, and then install it in the print head or tool cabinet.
2. There are two ways to clean up the template
Method 1: Wash with washing machine. The best cleaning effect is achieved by using the model cleaning equipment.
Method 2: Clean manually.
Use a special wiping cloth to smear anhydrous ethanol to remove solder paste. If the leak is plugged, use a soft toothbrush instead of a hard needle.
Use a compressed air gun to blow out the residue in the leakage hole of the template.
Install the template on the mounter, otherwise it will be received in the tool box.
Note: The order of removing the template and scraper is to remove the scraper first, and then remove the template to prevent damage to the scraper.
To sum up, in fact, for equipment maintenance, we need front-line operators to be able to handle our SMT solder paste printers, SMT placement machines, reflow soldering, selective wave soldering, etc Have a sense of ownership All devices need to be taken care of like infants, so as to ensure that there will be no problems in the production of PCBA products

The above is the explanation given by the editor of PCB circuit board company.
If you want to know more about PCBA, you can go to our company's home page to learn about it.
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