IEC 60950-1 Scratch Resistance Tester

IEC 60950-1 Scratch Resistance Tester is applicable for scratch testing solid insulating accessible parts or printed circuit boards of household appliances and similar products. It verifies the material's resistance to penetration by sharp tools and surface strength to ensure product safety performance.

Application

Scratch resistance testing of enclosures and panels for household and similar appliances;

Surface scratch resistance evaluation of solid insulating materials and printed circuit boards;

Scratch resistance testing of coated materials, metal, and plastic surfaces;

Research and development and quality control for electronic information equipment and household appliances;

Laboratory standard testing and industry standard verification.

Standards

GB 4943.1-2011 Part 1: Safety of Information Technology Equipment — Mechanical Strength/Scratch Clause 2.10.6.6

GB 4706.1-2005 Safety of household and similar electrical appliances — Clause 21.2: Mechanical strength/scratch resistance of enclosures

IEC 60950-1 Clause 2.10.6.6

IEC 60335-1 Clause 21.2

Parameters

Features

High-Precision Scratch Control: Utilizes hardened steel needles with rounded, polished tips to ensure uniform and stable scratches.

Multi-Directional Scratch Testing: Rotating workbench enables both longitudinal and transverse scratch testing to accommodate diverse sample requirements.

Stable Automated Control: PLC + touchscreen system control ensures high test repeatability.

Safety and Reliability: Precise load control ensures safe operation.

Adjustable Scratch Parameters: Speed, pressure, spacing, and length are all adjustable, compatible with multiple testing standards.

Accessories

Test Principle

The instrument applies vertical load via a hardened steel needle to create scratches on the sample surface. Scratch spacing, length, application angle, and speed are adjustable. Uniform pressure from the steel needle forms controlled scratches, evaluating the sample's resistance to penetration and scratching under sharp tools. The rotating workbench enables multi-directional scratching for comprehensive testing.

Test Procedures

Operating Instructions:

Secure the sample in the workbench fixture, ensuring it is flat and free of warping.

Install the steel needle and adjust the scratching angle and load weights.

Set the scratching speed, spacing, length, and number of cycles.

Open the safety cover and start the instrument for testing.

After testing, turn off the power, remove the sample, and inspect the scratches.

Avoid operation in high-humidity or wind-vibration environments to ensure testing accuracy.

Experimental Procedure:

Sample Preparation: Verify sample dimensions meet standards and secure to workbench.

Steel Needle Installation: Insert hardened steel needle, set scratching angle and fillet radius.

Load Configuration: Apply constant load weight to ensure 10N ±0.5N force.

Parameter Setup: Configure scratch length, speed, spacing, and test cycles.

Safety Verification: Inspect safety guard and fixture positioning.

Test Execution: Perform single or multiple scratches, maintaining ≥5mm spacing between scratches and ≥5mm distance from sample edges.

Result Evaluation: Inspect scratch patterns and document test data meeting standard requirements.

FAQ

1. What is the primary purpose of this scratch resistance tester?

You use this tester to verify the mechanical strength and scratch resistance of insulating parts and enclosures for electrical and electronic products.

2. Which standards can you directly comply with using this instrument?

The tester supports compliance with IEC 60950-1. IEC 60335-1. GB 4943.1. and GB 4706.1 scratch resistance requirements.

3. Why is a hardened steel needle used for testing?

The hardened steel needle provides consistent hardness, geometry, and durability, ensuring repeatable and standard-compliant scratch results.

4. Can you perform multi-directional scratch testing?

Yes, the 360° rotatable worktable allows you to perform both longitudinal and transverse scratch tests on the same specimen.

5. How do you ensure accurate scratching pressure during testing?

Accurate pressure is ensured by calibrated constant-load weights that apply a stable 10 N ±0.5 N force throughout the test.

6. What precautions should you take during operation?

You should ensure proper sample fixation, verify safety cover placement, and avoid operating the instrument in unstable or humid environments.