Product Details
Spray & tack-dry panels in less than 7 minutes without handling.
Make handling wet panels a thing of the past.
The 9724 IR Tack-Dry Oven is designed to quickly and efficiently tack-dry LPISM-coated Printed Circuit Boards. The unit consists of three individually controlled long-wave infrared heater zones, a forced-air circulation system, and a conveyor to move the boards through the oven. This highly innovative technology, developed by Argus International, provides a breakthrough in significantly reducing the tack-dry time of LPISM-coated PCBs. While convection-only ovens rely on air to transfer heat, the 9724 directly heats the board with IR radiation and provides forced air circulation. This technique lowers the normal tack-dry time from 35-45 minutes to 3-4 minutes, that represents about a 1200% improvement in drying efficiency!
Key Benefits
Traditional convection ovens use electric
coils to heat the air; the air moves around and heats the
coating; eventually the coating heats the substrate. Once
the substrate gets hot enough to not heat-sink the
coating, the coating dries from the outside. Most LPISM manufacturers can supply coating
materials that function well in the 9724.
Coates, Electra, Enthone, Lackwerke Peters, Technic, Shipley Ronal,
Vantico and Taiyo all produce LPISMs
that have processed well in our laboratory evaluations.
Potential customers are welcome to view the IR Tack-Dry
Oven in operation or to process sample boards in our
Technical Service Laboratory. The real benefit to acquiring the complete
PC9000 LPISM Application System is that it allows the
machines to be linked together so that LPISM application
becomes a load-unload operation, without handling
of wet boards. By placing equipment end to end,
boards may be loaded at the entrance of the 9524B Spray
Unit and removed at the exit of the 9724 Tack-Dry Oven
just minutes later, fully coated and tack-dried.The 9524 (or 9524S) and 9524B (or 9524D) HVLP Spray Units utilize advanced spray technology to apply uniform LPISM coatings to Printed Circuit Boards. This is accomplished by sweeping the heated gun across the PCB at very high speeds as the PCB passes through the spray chamber on a continuously moving edge-contact conveyor. This provides an efficient, reliable system which minimizes over-spray and produces a continuous, conveyorized throughput of LPISM-coated boards.
The 9524S deploys one spray gun, while the 9524D deploys two spray guns for the single-pass coating of double-sided panels.
Key Benefits
Heated gun technology has improved the
ability of HVLP systems to encapsulate traces, because
the LPISM returns to room temperature and higher
viscosity before it strikes the PCB. The heated gun also
reduces LPISM usage by allowing thinner coatings to
adequately cover higher circuit traces. Typical spray operation will provide 140 to
150 square feet of a 1 mil thick dry coating per kilogram
of LPISM; this easily equals or exceeds the efficiency
and economy of other methods of application. Simplicity of setup, speed of operation and
uniformity of performance all favor the use of a single
spray gun system. This system is not subject to multiple
gun spacing, placement, adjustment and pattern problems
that can all lead to inconsistent coating thickness.Copyright © 1997-2004 Argus International, Inc. All rights reserved.