SC_450 PreciseCoat Conformal Coating Jet_Rev_04.pdf - 第25页

SC-450 PreciseCoat C onformal C oating J et Operation © 2024 Nordson Corporation 19 4.6.1.2 DL Type Needle Coating Material Response The coating materi al resp onse is dependent on wh at needle is selecte d, see 4.6.1 DL…

SC-450 PreciseCoat Conformal Coating Jet Operation

4.6.1 DL Type Needle Hardware Response

To determine hardware response:

1. Utilize Figure 4-1 to determine the nozzle diameter based off the targeted line width.

Figure 4-1 Line Width

2. Utilize Figure 4-2 to estimate thickness of coating based on the selected nozzle diameter.

NOTE

Thickness increases with line width and is application dependent.

Figure 4-2 Thickness

SC-450 PreciseCoat Conformal Coating Jet Operation

4.6.1.2 DL Type Needle Coating Material Response

The coating material response is dependent on what needle is selected, see 4.6.1 DL Type Needle

Hardware Response.

To determine the coating material response:

1. Select the nozzle diameter from line width and the coating material (Figure 4-3).

2. Repeat nozzle type hardware response if the line width and coating material does not align

with application requirements, see 4.6.1 DL Type Needle Hardware Response.

Figure 4-3 Coating Material Response

3. Utilize Figure 4-4 to estimate thickness of coating based on the selected nozzle diameter.

NOTE

Solvent based materials do not have the same thickness to width relationship

compared to other coating materials (ie…100% solids).

Figure 4-4 Thickness

SC-450 PreciseCoat Conformal Coating Jet Operation

4.6.2 Hubbed Needle Response

NOTE

Only use 6.4 mm drive needles with hubbed needles, see Item 22.

To determine hubbed needle response:

1. Select the nozzle gauge from line width and the coating material (Figure 4-5).

Figure 4-5 Line Width

2. Utilize Figure 4-6 to estimate thickness of coating based on the selected nozzle diameter.

Figure 4-6 Thickness