15 kN Axial Plug Pulling Metrology on Calibrated Hydraulic Tensile Rigs
Engineering Overview: Technical breakdown of laboratory tensile extraction testing, subjecting lock plugs to 15 kN axial pulling forces on calibrated tensile test rigs.
Technical & Engineering Specifications
| Load Rate | 10 mm/min Controlled Crosshead Speed |
|---|---|
| Test Standard | EN 1303:2015 Clause 4.9.2 (Resistance to Pulling) |
| Acceptance Criteria | Zero core separation; lock remains deadlocked |
| Applied Tensile Load | 15 kN (1,500 kg force) Axial Pull |
Laboratory Tensile Extraction Testing
To achieve EN 1303 Attack Grade D / SKG*, cylinders are mounted in high-tensile steel fixtures on a 100 kN universal hydraulic tensile testing machine.
Testing Sequence
- Screw Insertion: A hardened M6 high-tensile extraction screw is torqued into the keyway.
- Linear Pulling: A continuous axial tensile load is applied at $10\text{ mm/min}$ until reaching $15\text{ kN}$ (1.5 tons force), verifying that the core does not extract.
Frequently Asked Engineering & Selection Questions
Q1: What standard or test protocol is defined here?
Technical breakdown of laboratory tensile extraction testing, subjecting lock plugs to 15 kN axial pulling forces on calibrated tensile test rigs.