SL940-Install-Ops-Maintenance-7210918_B.pdf - 第22页
1-8 Introduct ion 1.11 Conforma l Coating Applicator s The SL -940E/SL- 941E can be configure d with any of t he coating appl icator s described in Table 1- 1. Table 1- 1 SL - 94 0E/SL - 9 41E Conf ormal C oating Ap plic…
Introduction 1-7
1.10 Vision System
The Vision System consists of a Dalsa-Coreco Genie M640 digital 640 x 480 pixel camera. It allows the
programmer to teach dispensing locations on the substrate using the ECXP software. The programmer
views a live image of the camera’s target and uses the graphical user interface to create the coating
sequence.
1.10.1.1 Vision System with Fiducial Find
In addition to the features described in 1.10 Vision System, the system has the capability to locate
fiducials during programming and production runs.
1-8 Introduction
1.11 Conformal Coating Applicators
The SL-940E/SL-941E can be configured with any of the coating applicators described in Table 1-1.
Table 1-1 SL-940E/SL-941E Conformal Coating Applicators
Coating Applicator Rotation Tilt
SC-104HS High Speed Film Coater
0-90°
SC-105HS High Speed Film Coater
0-360° 0-30°
SC-204HS High Speed Non-Circulating Film Coater
0-90°
SC-205HS High Speed Non-Circulating Film Coater
0-360° 0-30°
SC-300 Swirl Coat Applicator None 4 position tilt
SC-400 Precise Coat Conformal Coating Jet None
The SC-10X Series Film Coaters are circulating applicators. The SC-20X Series applicators are
noncirculating. Noncirculating fluid applicators are used to apply materials that do not require heating and
therefore, are not circulated.
1.11.1 SC-104HS/SC-105HS Circulating Film Coater
The SC-104HS (4-axis) and SC-105HS (5-axis) apply coatings in a film rather than in an atomized spray
produced by conventional airless spray guns. The SC-104HS consists of an air actuated assembly which
rotates the nozzle from 0-90 degrees. The SC-105HS consists of an air actuated assembly which rotates
the nozzle in 90-degree increments. In addition, the SC-105HS has an air-activated tilt assembly, which
allows the nozzle to be tilted from vertical to 30 degrees from vertical.
1.11.2 SC-104/105VCS Viscosity Control System
The Viscosity Control System maintains consistent temperature of conformal coating fluids. The system
includes a coating applicator and a heated circulating fluid circuit to eliminate viscosity changes in
temperature-responsive materials. Close-range temperature monitoring keeps the coating process
consistent and stable. By controlling the temperature of the conformal coating fluid circuit, viscosity
fluctuations can be reduced. Additionally, emissions of Volatile Organic Compounds (VOCs) may be
reduced, depending on the fluid properties, by reducing the amount of solvent required to thin the
conformal coating.
1.11.3 SC-204HS/SC-205HS Non-Circulating Film Coater
The SC-204HS (4-axis) and SC-205HS (5-axis) film coaters are used to apply materials that do not
require heating and therefore do not require circulation. The coaters are fitted with a rotating ring
mechanism that rotates the SC-204HS nozzle from 0-90 degrees and the SC-205HS nozzle in 90-degree
increments. In addition, the SC-205HS has an air-activated tilt assembly, which allows the nozzle to be
titled from vertical to 30 degrees from vertical.
Introduction 1-9
1.11.4 SC-300 Swirl Coat Applicator
The SC-300 Swirl Coat applicator offers three modes of operation - bead, monofilament and swirl. Ideal
for conformal coating applications, the SC-300 handles a wide range of materials, varying in viscosity
from 30 to 3500 mPa-sec (30 to 3500 centipoise). The SC-300 is designed for use with solvent-less
coatings, supporting environmentally responsible practices. A four-position tilt option is available to
allow coating access to vertical sides of components.
1.11.5 SC-400 PreciseCoat Conformal Coating Jet
The SC-400 PreciseCoat Conformal Coating Jet is ideal for applying conformal coating materials to
highly selective areas. This solution is designed for coating small substrates or substrates with high
component density, and when there are tight tolerances between coated and uncoated areas. The
SC-400 jet reaches locations not accessible by other applicators, using a needle design with jetting action
and fast pulse-width modulated control.