SC_450 PreciseCoat Conformal Coating Jet_Rev_04.pdf - 第26页
SC-450 PreciseCoat C onformal C oating J et Operation 20 © 2024 Nordson Corporation 4.6.2 Hubbed N eedle Re sponse ? NOTE Only use 6.4 m m drive needles with hub bed needles, see Item 22. To determine hubbed needle res p…
SC-450 PreciseCoat Conformal Coating Jet Operation
© 2024 Nordson Corporation 19
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
20 © 2024 Nordson Corporation
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
© 2024 Nordson Corporation 21
5 Maintenance and Service
5.1 Overview
Performing the recommended maintenance and service procedures at suggested intervals increases the
life of your SC-450 PreciseCoat Jet and ensures high quality coating performance for every production
run. This section contains the following procedures:
•
Recommended Facility
Items
•
Removing the
SC
-
450
•
Routine Maintenance
Procedures
•
Replacing SC
-
450 Components
• Removal and Cleaning the Fluid
Needle
5.2 Safety First
Operation of your SC-450 PreciseCoat Jet involves air pressure, electrical power, mechanical devices,
and the use of hazardous materials, and sometimes may involve heat. It is essential that every person
servicing the coating system or components fully understands all hazards, risks, and safety precautions.
See Section 2 - Safety for additional information.
WARNING!
Allow only qualified personnel to perform the following tasks. Follow the safety
instructions in this document and all other related documentation.
WARNING!
Ensure the fluid system is completely depressurized prior to loosening any fittings
in the fluid path. Failure to do so may cause serious injury to personnel.
5.3 Recommended Facility Items
In addition to the supplied accessories and tools, it is recommended that the following items be available
at your facility:
• Personal Protective Equipment recommended in applicable SDS
• Bench Lamp and Magnifier Set
• Ultrasonic Cleaning System
• Air-gun and compressed, dry air
• Appropriate fluid collection and disposal container
• Solvent appropriate for the fluid used
• O-ring type lubricant
• Disposable towels, cleaning swabs and brushes