Automatic Coating Adhesion Scratch Tester
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The Automatic Coating Adhesion Scratch Tester is a high-precision instrument designed for automatically evaluating the adhesion strength between surface coatings and substrates. The device integrates multiple measurement methods, including acoustic emission, friction force, static pressure, constant load, and optional electrical conductivity. It can accurately quantify the adhesion of hard or soft coatings. Since 1997, this method has been recognized as a Chinese mechanical industry standard (JB/T 8554-1997) and is widely used in coating R&D, quality control, and material performance evaluation.
Application
Coating material research and performance evaluation, including metallic, ceramic, and functional thin-film coatings.
Adhesion testing for surface treatment and protective layers, such as anodized films, sprayed coatings, and powder coatings.
Quality control and inspection in industrial manufacturing to ensure reliable bonding between coating and substrate.
Material science research to evaluate coating wear, scratch, and peel resistance under different conditions.
Standards
JB/T 8554-1997 Automatic Scratch Test for Coating Adhesion (Mechanical Industry Standard)
ISO 20502:2016 Coating Scratch Test
ASTM D7027 Coating Scratch Hardness Test
ISO 1518-1 / ISO 1518-2 Coating Hardness and Adhesion Test
DIN EN 4624 Pull-Off Test for Coating Adhesion
Parameters
| Parameter | Specification |
|---|---|
| Measurement Methods | Acoustic emission, friction force, static pressure, constant load, electrical conductivity (optional) |
| Test Load Range | 0–200 N (automatic loading), accuracy 0.3 N |
| Coating Thickness Detection Range | 0.2–150 μm |
| Standard Indenter | Diamond, cone angle 120°, tip radius R=0.2 mm |
| Sample Size | Adjustable 10–75 mm |
| Power Supply | 210–235 V, 50–60 Hz, 2000 W |
| Workbench Dimensions | 1500 × 750 × 800 mm (user-supplied) |
Features
Integrated Multi-Measurement Methods: Simultaneously supports acoustic emission, friction force, static pressure, constant load, and optional electrical conductivity.
Automatic Loading with High Accuracy: Automatic load application with 0.3 N precision ensures repeatable and stable testing.
Wide Coating Thickness Range: Suitable for coatings from 0.2 to 150 μm, covering most industrial applications.
High-Precision Indenter: Diamond tip radius 0.2 mm, cone angle 120°, guaranteeing consistent scratches and accurate measurement.
User-Friendly Operation: Adjustable sample fixture accommodates 10–75 mm samples for easy preparation and repeated testing.
Compliant with Standards: Designed according to JB/T 8554-1997 and relevant international standards.
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