Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

Directional Shield for Air Nozzles in Drying Tanks

IP.com Disclosure Number: IPCOM000120095D
Original Publication Date: 1991-Mar-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Harney, DA: AUTHOR [+3]

Abstract

The attack of chorofluorocarbons on the earth's ozone layer has prompted immediate reduction and elimination plans for the use of FREON* in IBM. These reduction and elimination plans include the replacement of FREON base parts cleaners with alternative methods of cleaning. One popular alternative solvent being used in IBM is deionized water. In most cases, IBM is using an aqueous parts cleaner with deionized water and clean hot air to wash and dry parts. This shield has been designed from the results of experimentation on drying head and arm assembly parts in an open face hot air drying tank. The shield is installed directly above the air knives in the drying tank. The function of the shield is to decrease the tank opening so that air turbulence in the tank is decreased and a higher tank temperature is maintained.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 60% of the total text.

Directional Shield for Air Nozzles in Drying Tanks

      The attack of chorofluorocarbons on the earth's ozone
layer has prompted immediate reduction and elimination plans for the
use of FREON* in IBM.  These reduction and elimination plans include
the replacement of FREON base parts cleaners with alternative methods
of cleaning.  One popular alternative solvent being used in IBM is
deionized water. In most cases, IBM is using an aqueous parts cleaner
with deionized water and clean hot air to wash and dry parts. This
shield has been designed from the results of experimentation on
drying head and arm assembly parts in an open face hot air drying
tank.  The shield is installed directly above the air knives in the
drying tank.  The function of the shield is to decrease the tank
opening so that air turbulence in the tank is decreased and a higher
tank temperature is maintained.

      The addition of this shield helps improve the performance of
the drying tank in several ways.  First, and most importantly, it
allows the tank to maintain a higher operating temperature at lower
energy cost.  The installation of this shield allows for a reduction
in air volume and pressure while still maintaining a desired tank
temperature.  The shield also decreases the tank opening and the
amount of heat which will escape from the tank. Finally, the shield
directs warm air across the tank opening which, in turn, reduces the
amount of air turbulence in the drying tank for sensitive...