New Equipment | Cleaning Equipment
Fully automatic PCBA cleaning machine-SMS-5600 1. Comprehensive cleaning, which can thoroughly clean the residual rosin flux, water-soluble flux, no-clean flux, solder paste and other organic and inorganic pollutants on the surface of PCB after sol
New Equipment | Cleaning Equipment
QYSMT / MOREL Fully Automatic Stencil Cleaning System BMP-750 Features ▶All stainless steel body, beautiful, wear resistance, corrosion resistance, in line with environmental protection requirements and standards. ▶The fully pneumatic operation, n
Electronics Forum | Thu Oct 28 11:41:21 EDT 2004 | Steve Stach
Hello Loz, Blue residues on circuit boards can be caused by copper corrosion, component body deterioration, marking permanently, and adhesive break down. In this case, a more subtle mechanism appears to be possible. This is a no clean application
Electronics Forum | Mon May 26 09:31:41 EDT 2008 | davef
What steps are taken in low residue wave soldering to assure the proper amount of flux is applied prior to soldering? * Too little flux can result in poor solder flow. * Too much flux can result in corrosive residues left on the board after soldering
Industry News | 2012-11-02 09:04:14.0
IPC and SMTA jointly announce the agenda for Session 5 of the High-Reliability Cleaning and Coating Conference, scheduled to take place November 13-15, 2012 at the Crowne Plaza Hotel – O’Hare in Chicago, IL.
Industry News | 2022-10-12 11:23:36.0
In the SMT industry, there are many types of cleaning machines. According to the cleaning things, there are stencil cleaner, PCBA cleaner, Wave Oven Pallet/Fixture cleaner, Mis-Print PCB cleaner, Squeegee cleaner, Nozzle cleaner, PCB surface cleaner and so on.
Parts & Supplies | Tape and Reel
High Temperature Masking dots High temperature masking tape and dots are ideal for masking gold fingers of printed circuit boards during wave solder or solder dip process, as well as for solder wave masking and electrical insulation. The p
Technical Library | 2019-06-03 15:32:40.0
ACI Technologies was pleased to assist a customer by conducting elemental analysis on several assemblies displaying severe corrosion. Several board assemblies had failed in the field and exhibited areas of corrosion in close proximity to onboard components. The most common source of corrosion on electronic assemblies is residual flux. Fluxes are specific chemistries applied during the soldering process which improve the wetting of the solder to both the pad and component when forming the solder joint. They can be highly reactive chemicals that, if left on the assemblies, can lead to corrosion, electrical degradation, and decreased reliability. In the presence of moisture and electrical bias, flux residue can enable dendritic growth as a result of electrochemical migration (ECM).
Technical Library | 2020-03-09 10:50:17.0
A customer called the Helpline seeking advice for cleaning no-clean fluxes prior to applying a conformal coating. The customer's assemblies were manufactured with a no-clean rosin based solder paste (ROL0) and were cleaned with an isopropyl alcohol (IPA) wash. After cleaning, a white residue was sometimes found in areas with high paste concentrations and was interfering with the adhesion of the conformal coating (Figure 1). For conformal coatings to adhere properly, the printed circuit board (PCB) surface must be clean of fluxes and other residues. In addition, ionic contamination left by flux residues can lead to corrosion and dendrite growth, two common causes of electronic opens and shorts. Other residues can lead to unwanted impedance and physical interference with moving parts.
Precision Cleaning Medium For Manual Flux Removal VIGON® EFM is a precision cleaning agent designed to remove flux residues from electronic assemblies in manual applications. VIGON® EFM is a mixture of halogen-free, organic solvents. It dries fast a
ALPHA® Telecore XL-825 lead-free cored solder wire minimizes spattering in hand soldering operations, thus reducing circuit board contamination and enhancing worker safety and comfort.
Events Calendar | Tue Aug 18 00:00:00 EDT 2020 - Tue Aug 18 00:00:00 EDT 2020 | ,
How to Minimize Humidity Interaction with PCBAs for Robustness
Events Calendar | Wed Aug 19 00:00:00 EDT 2020 - Wed Aug 19 00:00:00 EDT 2020 | ,
DfR - Design for Rinse-Ability: Effect of SMT Component Package Design on Cleaning Effectiveness
SMTnet Express, July 16, 2015, Subscribers: 23,036, Members: Companies: 14,463, Users: 38,550 Testing Printed Circuit Boards for Creep Corrosion in Flowers of Sulfur Chamber iNEMI (International Electronics Manufacturing Initiative) Qualification
The Surface Finish Effect on the Creep Corrosion in PCB SMTnet Express May 10, 2012, Subscribers: 25098, Members: Companies: 8865, Users: 33085 The Surface Finish Effect on the Creep Corrosion in PCB First published in the 2012 IPC APEX EXPO
| https://www.smtfactory.com/PCBA-Cleaning-Machine-PCB-Defluxing-For-Best-Coating-and-Bonding-Effect-id43566387.html
. Prevent component and PCB corrosion Flux residues left on electronic circuit boards are acidic. If they are not removed through a cleaning process, the residue can absorb ambient moisture from the air and cause corrosion of component leads and PCB contacts
40731 | https://www.smta.org/harsh/Harsh-Environments-Program-2019.pdf?v=20052905555
Surface Mount Technology Association (SMTA)
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