SC_450 PreciseCoat Conformal Coating Jet_Rev_04.pdf - 第8页

1 Introduction

1.1 Overview

The SC-450 PreciseCoat Jet is a non-contact coating valve providing high-speed delivery and exceptional

volumetric control for various conformal coating fluids. The SC-450 PreciseCoat can jet conformal coating

materials between and next to components up to 15 mm. It dispenses fluid either as discrete dots or a

rapid succession of dots to form a line down to 1.5 mm wide. Please contact Technical Support for the

suitability of the SC-450 PreciseCoat Jet technology for other applications. It is fully compatible with

Select Coat Series Coating Systems.

This manual is intended primarily as a reference for trained process engineers and service technicians.

However, others unfamiliar with Select Coat applicators may also find this manual useful as a general

introduction.

1.2 Specifications

Table 1-1 Fine Line Coating Valve Specifications

Characteristic Specification

Size

Width: 30 mm

Height: 190 mm

Depth: 65 mm

Seat and Nozzle 440C Stainless Steel / 303 Stainless Steel

Needle Assembly Tungsten Carbide / Silicon Nitride

Fluid Seal PTFE

Jet Body

6061-T6 Aluminum/Nickel Plated

303 Stainless Steel

Fluid Body 440C Stainless Steel

Needle Assembly Bearings PEEK

Heater

6061-T6 Aluminum

Nickel Plated

Maximum Cycle Frequency 166 Hz.

Minimum Valve Air Pressure 5.5 bar (80 psi)

Solenoid 24 VDC, 5 watts

Heater 24 VDC, 24 Watts, 24 ohms

Thermal Control RTD 100 ohm, platinum

Maximum Heater Set Point 100 °C

SC-450 PreciseCoat Conformal Coating Jet Introduction

1.3 Dimensions

Figure 1-1 SC-450 PreciseCoat Jet Dimensions

2 Safety

2.1 Overview

This section is intended to provide basic safety information necessary for operating and servicing the

SC-450 PreciseCoat Jet. This section covers the following topics:

•

Safety First

•

Disposal

•

Equipment Use

•

Emergency Shutdown

• Basic Safety Precautions and

Practices

• Safety Warning Labels

•

Decommis

sioning

To further optimize safe operation, precautions and recommended practices are included with the

procedures throughout this manual.

WARNING!

Failure to comply with any of the safety recommendations could cause serious

injury to the user or damage to the coating system.

NOTE

Safety is considered a joint responsibility between the original equipment

manufacturer (Nordson) and the end-user (owner). All safety precautions and

practices should be in accordance with local regulations and facility policy.

2.2 Safety First

Coating system operation involves air pressure, fluid pressure, mechanical and pneumatic devices,

electrical power, and the use of hazardous materials, and sometimes may involve heat. In addition to the

safety precautions listed in this manual, refer to the safety section in the applicable coating system

Installation, Operations, and Maintenance Manual prior to installing and operating the Select Coat

applicator.

2.3 Equipment Use

2.3.1 Intended Use

Use of Nordson equipment in ways other than those described in the documentation supplied with the

equipment may result in injury to persons or damage to property. Some examples of misuse include:

• Using incompatible materials

• Making unauthorized modifications

• Removing or bypassing safety guards or interlocks

• Using incompatible or damaged parts

• Using unapproved auxiliary equipment

• Operating equipment in excess of maximum ratings