ACCELERATED CURING OF CONFORMAL COATING MATERIALS BY CO2 SPRAY ATOMIZING
Permalink
Bookmark
Share
Twitter
Digg
Reddit
Facebook
Stumbleupon
Del.icio.us| IP.com Number | IPCOM000009076D |
|
|
|---|---|---|---|
| Dated | Jun 1, 1999 UTC | ||
| Size | 1 page(s) (52.0 KB) | ||
| Disclosed by |
|
||
Publication Summary
To improve the rate of cure over a typical humidity/CO, cure chamber, CO, atomizing has been introduced upstream at the material spray booth. Atomizing with air is a standard practice in spray applications; the applied material stream is diffused into droplets or "atoms" by the pressurized air. By substituting CO, for air during atomizing, the CO, reacts with the entire conformal coating material layer from the time of application (not just the top layer), accelerating the curing process. The result is a significant reduction in cure time, as well as a robust manufacturing process that allows for varying material thickness without adhesion concerns.| Country | United States |
|---|---|
| Language | English (United States) |
| Related Person(s) |
(AUTHOR) John Klemmer |
| Copyright | Motorola Inc. June 1999 |
About this Publication
This document was submitted to IP.com's Prior Art Database and this preview is designed to provide you with information regarding the contents of this document by displaying up to the first four pages of the document as scaled page renderings and displaying a limited amount of text which was extracted from the document on the Text Preview Tab.
To find out more on how to obtain the entire document, click the Download tab. There is a charge for downloading some Prior Art Database documents; please examine carefully whether you believe this document fills your needs before purchasing.
For more information about the Prior Art Database, visit the Learn section of this website. Thank you for visiting IP.com's Prior Art Database! You may wish to check out our Intellectual Property Library website before you leave.
0 M
MOlOROLA Technical Developments
ACCELERATED CURING OF CONFORMAL COATING MATERIALS BY CO2 SPRAY ATOMIZING
To improve the rate of cure over a typical humidity/CO, cure chamber, CO, atomizing has been introduced upstream at the material spray booth. Atomizing with air is a standard practice in spray applications; the applied material stream is diffused into droplets or "atoms" by the pressurized air. By substituting CO, for air during atomizing, the CO, reacts with the entire conformal coating material layer from the time of application (not just the top layer), accelerating the curing process. The result is a significant reduction in cure time, as well as a robust manufacturing process that allows for varying material thickness without adhesion concerns.
by John Klemmer
Environmental Compliance Regulations are dri- ving the elimination of materials that emit Volatile Organic Compounds (VOC's) from manufacturing processes. As such Motorola is converting Conformal Coating Materials to a primerless, 100% solids, VOC free silicone material. The need of our organization was to implement a material that would "drop" into the existing manufacturing space without sacrificing quality or throughput.
The selected conformal coat material cures in a well-circulated chamber, through a reaction with CO2 and relative humidity in the atmosphere. The curing starts at the top layer of material and then permeates down to lower layers. If the material is cured too rapidly, the top...