Industry Directory | Manufacturer
As a manufacturer of reflow soldering systems with convection or condensation and drying and coating systems, Rehm Thermal Systems has been producing energy-efficient manufacturing equipment for the electronics and photovoltaics.
Industry Directory | Manufacturer
The international full service manufacturer of systems, detergents, equipment and process design for the cleaning in electronics production.
kolb cleaning systems offer - besides very fast, efficient and thorough cleaning results an outstanding price/value ratio with surprisingly low investment and running costs! Our PS PowerSpray� systems clean PCB assemblies, DCB-hybrid substrates, bare
*Controlled convection with N2 option. *1-profile system. *More than 2 m process length. *Multijet air flow technology for excellent zone separation. *Volumetric and temperature controlled heat transfer *Highly stable temperature environment *C
Electronics Forum | Wed Jan 30 12:37:49 EST 2002 | jax
nifhail, In a nutshell: Vapor-phase reflow is a process that uses a fluid with a selected boiling point. As condensation of the hot vapor occurs on a cool assembly the assembly's temperature is rapidly raised to match the temperature of the vapor.
Electronics Forum | Fri Oct 26 02:29:41 EDT 2001 | ianchan
Ermm... ok, thanks for the info & tip...
Used SMT Equipment | AOI / Automated Optical Inspection
OMRON AOI VT-S720-A MACHINE Hardware Configuration Image signal input unit Main unit Power supply Air Camera Illumination Image resolution Feed method Line height PCB carrier width adjustment Ambient operating temperature Ambient opera
Used SMT Equipment | AOI / Automated Optical Inspection
OMRON AOI VT-RNS2-L Omron AoiVT-RNSⅡ parameters Hardware part LSIZE Image signal input part Camera 3CCD camera Lighting series Ring LED (R.G.B) Image resolution 10, 15, 20um Mechanism part Transmission method Belt transmission method Producti
Industry News | 2018-10-18 08:27:03.0
An Analysis of SMT Solder Paste Printing Defects
Industry News | 2018-12-08 03:29:29.0
SMT Dictionary – Surface Mount Technology Acronym and Abbreviation
Technical Library | 2020-11-24 23:12:27.0
In a lead-free reflow process, temperatures are higher, and materials use outgasses more than in a leaded reflow process. The trends toward higher density populated boards and more pin-in-paste technology also increase solder paste use. More components and more solder paste result in more outgassing of chemistry during the reflow process. Some assemblies report condensation of vapors when the cold printed circuit board enters the oven. Little is known about the interaction between these condensed materials in terms of the interaction between these condensed materials and the reliability of the assembly. Apart from the question of reliability, a printed circuit board contaminated with a small film of residues after reflow soldering is not desirable.
Technical Library | 2019-07-02 23:02:05.0
The introduction of lead-free solders resulted in a selection of different chemistries for solder pastes. The higher melting points of lead-free alloys required thermal heat resistant rosin systems and activators that are active at elevated temperatures. As a result, more frequent maintenance of the filtration systems is required and machine downtime is increased.Last year a different method of cleaning reflow ovens was introduced. Instead of cooling down the process gasses to condensate the residues, a catalyst was used to maintain the clean oven. Catalytic thermal oxidation of residues in the nitrogen atmosphere resulted in cleaner heating zones. The residues were transformed into carbon dioxide. This remaining small amount of char was collected in the catalyst. In air ovens the catalyst was not seen as a beneficial option because the air extracted out of the oven was immediately exhausted into the environment. When a catalyst is used in an air environment there is not only the carbon dioxide residues, but also water. When a catalyst is used in an air reflow oven the question is where the water is going to. Will it condensate in the process part of the oven or is the gas temperature high enough to keep it out of the process area? A major benefit of using a catalyst to clean the air before it is exhausted into the environment is that the air pollution is reduced dramatically. This will make environmental engineers happy and result in less pollution of our nature. Apart from this, the exhaust tubes remain clean which reduces the maintenance of air ovens.This paper will give more detailed information of catalyst systems during development and performance in production lines.
AF04 Cleans condensation traps, solder frames and carriers The kolb AF04 is a three chamber system which enables short cycle times. The system is therefore capable within a short time of parallel process cleaning, rinsing and drying. It cl
VIGON® RC 303 is a water-based cleaning agent specifically developed to remove all types of baked-on flux residues from reflow ovens and wave solder systems. Also, it removes re-condensed fluxes and emissions from condensation traps and heat exchange
Events Calendar | Mon Feb 11 00:00:00 EST 2019 - Mon Feb 11 00:00:00 EST 2019 | ,
Webinar: Solder Paste Evaluation & Simple Tricks of the Trade
Events Calendar | Tue Apr 07 00:00:00 EDT 2020 - Tue Apr 07 00:00:00 EDT 2020 | ,
Harsh Environment Failure - Causes & Cures - FREE Pre-Conference Webinar
SMTnet Express, July 3, 2019, Subscribers: 32,112, Companies: 10,820, Users: 24,903 Reduce Pollution of Process Gasses in an Air Reflow Oven Credits: Vitronics Soltec The introduction of lead-free solders resulted in a selection of different
40731 | https://www.smta.org/harsh/Harsh-Environments-Program-2019.pdf?v=20052905555
Surface Mount Technology Association (SMTA)
Heller 公司 | http://hellerindustries.com.cn/00600-248.pdf
. H O W C H A L L E N G I N G C O N V E N T I O N A L W I S D O M C A N O P T I M I Z E S O L D E R R E F L O W Poor soldering can result from many causes including improper deposition of paste, use of
