smt solder paste printing steps - JJY Solder Paste Manufacturer

There are a lot now.SMTThere are various types of solder paste printing in the workshop to ensure the quality of solder paste printing.SMTThe following have been formulated to applySMTThe process guidelines for solder paste printing in the workshop are formulated and revised by the quality personnel of JJY. Be responsible for setting printing parameters and strive to improve poor processes. Subsequently, to ensure good printing quality. So today, JJY solder Paste Manufacturer brings youSMTSolder pastePrinting steps. Let's have a look!

1.SMTSolder paste packaging and printing process:

1Printing equipment

2,PCBplate

3Steel wire mesh

4Flux paste

5Flux paste mixer

two,SMTThe packaging and printing process of solder paste

1Inspection before packaging and printing

2Check the printingPCBThe accuracy of Sakamoto

3Check the printing to be packaged thePCBIs the surface of the board intact and free of defects and stains 

4Check whether the steel wire mesh is compatiblePCB Consistent Whether its supporting force complies with the packaging and printing regulations

5Check if there are any clogged holes in the steel wire mesh. If there are, wipe the steel wire mesh with a lint-free cloth dipped in alcohol And dry it with a hot air gun The cleaner needs to be maintained with the steel wire mesh 3-5CM Yes.

6Check whether the solder paste used is appropriate Is it an application of "Storage and Use of Solder Paste" Note name Pay attention to the heating time and mixing time. There should be no distinction between heavy metals and lead Wait.

Iii. Technical Specifications for Solder Paste Printing

1The key problems in packaging and printing include: insufficient tin, continuous tin, sharp edges, and movement Missed printing, excessive tin, collapse ,PCBThe board is dirty, etc.

2The thickness of the solder paste packaging and printing is the thickness of the steel wire mesh -0.02 mm ～+0.04mm :

3, Ensure The actual welding effect of the electric welding behind the furnace has no drawbacks ;

Shenzhen JJY, a well-known brand of solder paste, has a long history12Year of product research and development: flux paste, solder wire, solder wire.Lead-free solder pasteProducers of solder paste and wire with lead solder paste, solder rods, lead solder paste, etc. For solder paste, choose the well-known brand of JJY as the solder paste manufacturer.