Product quality and its measurement
All AZ INTEC products are subject to strict quality requirements, verified by continuous measurement processes.
- Quality control of incoming materials.
- Controls and measurements during production processes.
- Final product inspections.
Test results are archived and can be traced back to product-specific qualitative values.
Identification marks:
- Batch number on the tube/hose.
- Date of manufacture on tube/hose assembly end fitting
1. Checking the dimensions according to the drawings
Spectrometric measurement of the chemical composition of metals by spark spectrometer. The result is a table with the analysis of the elements of the material.
2. Measurement of the hardness of metals
It is used, for example, to control the material hardness of stressed parts of the Cats press and the Cats pipe cutter.
3. Identification of input materials
After testing, all incoming materials are systematically identified so that they cannot be confused.
4. Continuous monitoring through eddy current testing
Used to control the quality of longitudinal welded pipes.
- To determine insufficient weld root, holes and other defects in the welded joint and also to control the surface quality of the pipe near the weld.
5. Welding strength test (N)
Regular supervision in the production of tubes/hoses.
Lab Tech shredding equipment. The output is a graph with the saved values for each batch.
6. Resistance test (Nm)
Measurement of the bending stiffness of the corrugated pipe by giving it an “S” shape. It is always performed with each batch.
7. Curvature test
Pressure test after 5 bends, always with each batch.
8. Mechanical resistance (hammer test)
Checking the inside diameter, welding and tightness after mechanical deformation of the pipe/hose. Periodic inspection is always performed with each batch.
9. Union nut test
The union nut should rotate freely after pressing 3 waves of the tube. Periodic inspection is always performed with each batch.
10. Sample grinding and visual inspection
Shuffle control
11. Sample recording and visual inspection
Shuffle control
12. Immersion in water: visual inspection
Testing of tubes/hoses under an air pressure of 5 bar, or according to customer’s requirements. Final products are tested at 1.5 multiples of their operating pressure.
13. Digital measurement of pressure drop
14. Cyclic stress
Test performed upon customer request or other requirements (e.g. for development and certification purposes). Resistance to pressure peaks and burst stress at a maximum value of 1000 bar.
15. Temperature measurement
When welding end fittings and annealing pipes.