banner
The importance of PCB component performance and appearance quality inspection

213 Published by FASTPCBA 4月 11,2019

The importance of PCB component performance and appearance quality inspection

The performance and appearance quality of PCB component has a direct effect on the reliability of SMA.Incoming PCB components shall be inspected in accordance with relevant standards and specifications, and special attention shall be paid to whether component performance, specification, packaging, etc. meet the requirements of ordering, product performance indicators, assembly process and assembly equipment production requirements, storage requirements, etc.

PCB component

The solder ability of component pins (electrode terminals) is the main factor affecting the reliability of SMA welding and the main cause of solder ability problem is the surface oxidation of component pins.Because oxidation is easy to occur, in order to ensure the reliability of welding, on the one hand, measures should be taken to prevent components from being exposed to air for a long time before welding, and to avoid long-term storage.On the other hand in front of the circuit board welding should pay attention to the weld ability tests, so as to find problems in time and deal with, and weld ability test is the most primitive method is visual assessment, basic test program is: dipping sample in flux, remove and remove excess flux after dipping in the molten solder groove, dipping time is twice of the actual production welding time to make visual assessment.This kind of test experiment is usually carried out by dip tester, which can precisely control the dip depth, speed and dip residence time of the sample according to the regulations.

PCB manufacturer reflow soldering machine heating system

PCB manufacturer reflow soldering machine heating system   The full hot air and infrared hea...

Do you like ? 81

Read more
Types and advantages of flexible pcb circuit board

Types and advantages of flexible pcb circuit board The PCBA board is the finished product after t...

Do you like ? 238

Read more
What are the SMT process

What are the  SMT process Everyone knows that the electronic products we use in our lives are ass...

Do you like ? 788

Read more
What is the difference between PCB and PCBA

What is the difference between PCB and PCBA What is a PCB PCB = printed circuit board; PCB is an ...

Do you like ? 608

Read more