mobile | classic
Dataweek Electronics & Communications Technology Magazine





Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Search...

Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2019


 

Aqueous batch cleaning solution
11 October 2017, Manufacturing / Production Technology, Hardware & Services

Aquanox A4625B is an innovative aqueous circuit board cleaning chemistry specifically designed to remove all types of electronic flux residues, including the latest lead-frees, in batch washers. It is a highly dispersive cleaning agent engineered to remove lead-free no-clean flux residues, and its manufacturer, Kyzen, says it is effective on greater than 90% of the solder pastes in production today.

Aquanox A4625B is commonly used to clean circuit board rosin and no-clean flux residue types but will also clean water soluble soils. Using properties similar to Aquanox A4625, A4625B is optimised for batch and inline spray-in-air cleaning machines.

The operating concentration varies with the soil type. Aquanox A4625B is a low foam circuit board cleaning agent that is commonly monitored based on the solvent/water ratio when running the product in spray-in-air inline cleaning machines and refractive index when running in batch spray-in-air cleaning machines. Wash time is a function of the soil, component geometry and Z-axis gap – lower Z-axis gaps under components typically require longer wash times.

The solvency make-up is engineered with a mixture of oxygenated alcohol-ether compounds, which are partially soluble in water. The solvents were selected on their ability to dissolve rosin and resin structures. The solvents provide a unique hydrophobic (rosin/resin loving) and hydrophilic (water loving) balance. The operating concentration range for water soluble soils is 5-10%, 10-20% for rosin-based soils, and 13-25% for no-clean soils.

The concentrated Aquanox A4625B contains no water or inorganic salts. The high level of solvency within the concentrate provides high dispersive values at the dilution concentration ranges. The solvent micro-droplets at operating wash temperatures ranging from 54°C to 68°C provide high affinity for non-polar resin and rosin structures.

Aquanox A4625B contains low levels of a polar organic reactive solvent with one side of the molecule inducing the ion-dipole on non-polar resins and the other portion of the molecule providing dispersive forces. These unique properties provide affinity for both ionic and non-ionic solutes. Functional additives are added to reduce interactions on metallic alloys, anodised aluminium and conversion coatings. The pH ranges from 9,5 to 10,5 dependent on the in-use concentration.

Wash cycle times in batch spray-in-air cleaning equipment are typically longer than those required for inline cleaning equipment. Long wash exposures may interact with some solder alloys and metallic substrates. Kyzen Booster 20 is a sump side additive often added at a level of 1-2% concentration to the Aquanox A4625B wash sump in batch spray-in-air cleaning machines. Booster 20 provides a protective film on metal surfaces during the cleaning cycle by reducing chemical interaction on metallic surfaces. The protective film is removed during the rinse stages.

For more information contact MyKay Tronics, +27 (0)11 869 0049, mykay@iafrica.com, www.mykaytronics.com


Credit(s)
Supplied By: MyKay Tronics
Tel: +27 11 869 0049
Fax:
Email: mykay@iafrica.com
www: www.mykaytronics.co.za
  Share on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Things are tough for electronics contract manufacturers in SA
    23 October 2019, Barracuda Holdings, Leratadima Tellumat Manufacturing, Manufacturing / Production Technology, Hardware & Services
    The contract manufacturing side of the South African electronics industry has been under enormous pressure for some time now, with some high-profile manufacturers having closed their doors or suffering serious financial trouble in recent years.
  • Quality management based on quality assurance
    23 October 2019, Quamba Technologies, Manufacturing / Production Technology, Hardware & Services
    To ensure consistently high product quality and ultimately achieve a zero-fault production stage, it is necessary to control all process steps.
  • 3D printing and electronics manufacturing
    23 October 2019, Omnigo, Manufacturing / Production Technology, Hardware & Services
    “The opportunities are endless and we are excited to see what the future holds for 3D printing and the electronics manufacturing industry.” – Christine Brindle, Omnigo
  • 3D printer for rapid prototyping
    23 October 2019, RS Components (SA), Manufacturing / Production Technology, Hardware & Services
    RS Components is shipping the latest version of the MakerBot 3D printer – the MakerBot Method – which has been designed to bridge the gap between industrial and desktop 3D printing. The unit targets engineers ...
  • Versatile conformal coating applicators
    23 October 2019, Techmet , Manufacturing / Production Technology, Hardware & Services
    The Select Coat applicator series from Nordson Asymtek – which includes the SC-350 Select Spray and the SC-300 Multi-Mode – is a highly versatile conformal coating applicator that supports a wide range ...
  • High-accuracy fluid dispenser
    23 October 2019, Techmet , Manufacturing / Production Technology, Hardware & Services
    Nordson Asymtek recently introduced the Forte fluid dispensing system. The Forte series combines high-accuracy fluid dispensing with increased throughput and productivity in a narrow footprint to handle ...
  • Conformal coating cleaning agent
    23 October 2019, Techmet , Manufacturing / Production Technology, Hardware & Services
    Coating carriers and frames offer important advantages within the conformal coating process regarding handling, process reliability and output, but they also require very extensive cleaning afterwards.  ...
  • Company profile: Etion Create
    23 October 2019, ETION Create, Manufacturing / Production Technology, Hardware & Services
    Etion Create is an original design manufacturer (ODM) that has been in operation for more than 25 years. Originally known as Parsec, the company was founded in 1993, focusing on the design, development ...
  • Cleaning machines and agents on show at Productronica
    23 October 2019, Electronic Industry Supplies, Manufacturing / Production Technology, Hardware & Services
    Using the motto ‘Make the Cleaning Check’, Zestron will be exhibiting a selection of state-of-the-art cleaning machines from leading international manufacturers. Visitors who are looking for a new cleaning ...
  • Application centres for dispensing and coating
    23 October 2019, MyKay Tronics, Manufacturing / Production Technology, Hardware & Services
    With a larger global installed base of MYSmart and MY700 jet printing and dispensing systems, Mycronic is taking the next step in bringing its hands-on expertise closer to customers by establishing multiple ...
  • Hybrid surface mounters
    28 August 2019, Zetech, Manufacturing / Production Technology, Hardware & Services
    Yamaha’s S10 and S20 i-Pulse 3D hybrid surface mounters, featuring enhanced support for MIDs (moulded interconnect devices), were developed under the concept of a single-unit manufacturing centre designed ...
  • Dual-syringe dispenser
    28 August 2019, Test & Rework Solutions, Manufacturing / Production Technology, Hardware & Services
    Techcon announced the release of its new 50 ml dual-syringe dispenser designed for hassle-free dispensing of 50 ml dual syringes. The system can accommodate conveniently packaged 50 ml side-by-side ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronics Buyers’ Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.