banner
What preparations should be made before PCBA soldering?

173 Published by FASTPCBA 7月 20,2021

What preparations should be made before PCBA wave soldering soldering? PCBA soldering involves many PCBA processing links, and the quality of PCBA soldering is closely related to these links. Electronic processing plants can provide customers with high-quality by doing every link. PCBA processing services. Today, FASTPCBA will analyze with you what preparations should be made before wave soldering?

1. Use a density meter to measure the density of the flux. If the density is too high, dilute it with a thinner.

2. Check the PCB to be soldered (the PCB has been coated with patch glue, SMC/SMD patch glue and cured and completed the THC insertion process) and whether the soldering surface of the socket and the gold finger and other parts of the attached component socket are coated with solder resist Or stick it with high temperature resistant tape to prevent the socket from being blocked by solder after wave soldering. If there are large-sized slots and holes, they should also be attached with high-temperature tape to prevent the solder from flowing to the upper surface of the PCB during wave soldering. (The water-soluble flux should be a liquid solder resist. After coating, place it for 30 minutes or bake it under a light for 15 minutes before inserting the components. It can be washed directly with water after soldering.

3. If using traditional foaming flux, pour the flux into the flux tank.

These three steps are actually the work that must be done before the entire wave soldering PCBA soldering, and as an smt chip processing plant, the process file should be written first in the process control.

FASTPCBA has excellent pcb manufacturing and pcb assembly ( PCBA ) technology in China.
We have focused on PCB / PCBA production research for more than 20 years.

PCB board short circuit six inspection methods

PCB board short circuit six inspection methods First, opening the PCB  board design on the comput...

Do you like ? 1,352

Read more
Common PCB circuit board fault detection method

Common PCB circuit board fault detection method   Common PCB circuit board faults are mainly...

Do you like ? 1,878

Read more
During circuit board soldering process, what should be paid attention to?

During circuit board soldering process, what should be paid attention to? 1. Possible conditions...

Do you like ? 2,618

Read more
What do the “special pads” on the PCB do?

What do the “special pads” on the PCB do? First, the plum pad 1, The fixing hole need...

Do you like ? 1,206

Read more
What are the requirements and specifications for pwb positioning holes?

What are the requirements and specifications for pwb positioning holes? What is a PCB positioning...

Do you like ? 1,114

Read more
Circuit board spray tin  function and technics procedure introduction

Circuit board spray tin  function and technics procedure introduction The so-called spray tin is ...

Do you like ? 1,038

Read more
Surface Mount Technology (SMT)

Surface Mount Technology (SMT) Surface Mount Technology (SMT), also known as surface assembly tec...

Do you like ? 1,151

Read more
How to wash the pcba

How to wash the pcba After the PCBA processing process is completed, it is often seen that there ...

Do you like ? 1,154

Read more