DirectFlo DF1400
Chapter 3: Using the DirectFlo
Comco Inc.
3-2
Issue Date: January 2009
The Essence of Micro-Abrasive Blasting
There are many variables that affect the results you will get from the micro-abrasive
blasting process. In order to get the most from your DirectFlo, a thorough understanding
of these factors is essential.
The single most important factor in getting the maximum benefit from your
DirectFlo is in proper abrasive selection.
With the right abrasive, you can lightly
clean soft materials or deburr machined metal parts.
Once the correct abrasive is chosen, the remaining factors that affect the abrasive action
are: the number of particles striking the work area, the velocity of the particles, and the
angle of the blast. These factors are controlled by the DirectFlo through the following
operator selections:
Tank Orifice Size
Nozzle Size
Nozzle to Work Distance
Angle of Nozzle to Work Surface
Air Pressure
Powder Flow Adjustment Setting
Table 3-1 gives a brief overview of all of these essential factors. Each of them is discussed in
detail on the following pages, beginning with abrasive selection.
