Steel Neddle Scratch Resistance Abrasion Tester Machine Mechanical Testing

Scratch Resistance Abrasion Tester YW-1151 Standards Compliance: GB4706.1-2005 "Safety of Household and Similar Electrical Appliances - General Requirements" Clause 21.2 GB4943.1-2011 Clause 2.10.8.4 IEC60335-1 IEC60950 Testing Purpose: Conduct scratch tests to assess the strength of solid insulation parts or printed circuit boards in household appliances and similar products, ensuring their resistance to penetration by sharp tools. Test Sample : Household appliances, printed circuit boards Functionality: 1. Scratch testing is conducted using a hardened steel needle. 2. The needle tip is conical with a top angle of 40°, rounded and polished, with a rounded radius of 0.25mm ± 0.02mm. 3. Scratches are made across five pairs of conductive portions, including the intermediate gap, which experiences the maximum potential gradient during testing. 4. During scratch testing, the needle angle is maintained…