New Equipment | Coating Equipment
The Viscosity Control System maintains consistent temperature of conformal coating fluids. The system includes a heated recirculating fluid circuit to eliminate viscosity changes in temperature-responsive materials. Close-range temperature monitoring
Oxygen-based inert gas control is the only certain method of preventing flash fires and explosions in flammable processes. By continuously measuring oxygen levels and adding inert gas only when necessary, a user can save up to 60% on inert gas usag
Electronics Forum | Sun May 13 02:08:26 EDT 2012 | isd_jwendell
In testing 63/37 SnPb NC paste I have seen HUGE differences in performance. Have you tried a different paste? I prefer AIM (NC257-2), they have performed well in each round of testing. My observations regarding mixing old and new paste: The paste ha
Electronics Forum | Mon Feb 25 08:10:47 EST 2002 | jax
Eric, I assume you are talking about "VOC" as in (MXL-350VC "VOC FREE" Swing Spray Fluxer) since I have never heard of "VCO" used when talking about Spray Fluxers', or anything else for that matter. This is copied right from the SMTnet Library: VOC.
Industry News | 2011-05-06 22:30:34.0
Nordson ASYMTEK introduces its new film coater for automated, selective, and precision application of conformal coating materials. The Nordson ASYMTEK Select Coat® SC-280 provides greater than 99 percent fluid transfer efficiency, improving material utilization by 30 to 50 percent.
Industry News | 2018-10-18 09:37:27.0
How To Set Profile In SMT Reflow Oven
Technical Library | 1999-05-07 11:44:26.0
In 1990 the United States Environmental Protection Agency Issued the Clean Air Act. The Clean Air Act and subsequent amendments are designed to limit the use of chemicals that contain volatile organic compounds (VOCs). The document goes into great detail setting limits for allowable VOC emissions for different industries.
Technical Library | 2016-02-11 18:26:43.0
Although reflow ovens may not have been dramatically changed during the last decade the reflow process changes step by step. With the introduction of lead-free soldering not only operation temperatures increased, but also the chemistry of the solder paste was modified to meet the higher thermal requirements. Miniaturization is a second factor that impacts the reflow process. The density on the assembly is increasing where solder paste deposit volumes decreases due to smaller pad and component dimensions. Pick and place machines can handle more components and to meet this high through put some SMD lines are equipped with dual lane conveyors, doubling solder paste consumption. With the introduction of pin in paste to solder through hole components contamination of the oven increased due to dripping of the paste.
The Centurion™ is a forced-convection SMT reflow system with tight, closed-loop process control, built for today’s high-throughput PCB assembly environments. With the best heat transfer in the industry, the Centurion is able to run any profile at the
With the Spectrum II's new Precision Z-axis, smaller dots and thinner solder paste lines can be achieved. This capability is standard on all Spectrum II systems and replaces the Precision Z option on the older Axiom products. In order to achieve su
SMTnet Express, February 11, 2016, Subscribers: 24,106, Members: Companies: 14,981, Users: 39,912 Effective Methods to Get Volatile Compounds Out of Reflow Process Gerjan Diepstraten; Vitronics Soltec Although reflow ovens may not have been
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/asymtek/products/conformal-coating-systems/viscosity-control-system
, within 1 degree C Protects material with an over-temperature alarm Includes a heated recirculating fluid circuit to eliminate viscosity changes in temperature-responsive materials Emissions of Volatile Organic Compounds (VOCs) may be reduced – up to 15
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? preheat stage takes 60 ~120 seconds, thus effectively removing the volatile solvent in solder paste, reducing the thermal shock for component, getting flux fully activated and temperature difference smaller
