Warum schält sich die Schweißüberzugschicht aus dem Grundmaterial aus?

Der Schweißauftragsschicht is a special alloy layer applied to repair worn or cracked surfaces. Es wird häufig bei der Herstellung und Reparatur von Maschinen eingesetzt. Jedoch, wenn der Schweißvorgang nicht korrekt gehandhabt wird, the overlay may not bond well to the base material. This can cause the surface to peel.

Below are the main causes of this issue and the recommended solutions.

1. Incorrect Material Selection

• Ursache: Inappropriate choice of materials.

• Solution: Suitable primer Und transition materials should be selected.

2. Excessive Hard Layer Thickness

• Ursache: A thick hard layer leads to poor Schlagfestigkeit.

• Solution: The thickness of the hard layer should be reduced, oder impact-resistant materials verwendet werden sollte.

3. High Residual Welding Stress

• Ursache: Excess stress remains in the weld area after welding.

• Solution: Verwenden Vorheizen, slow cooling, Temperierung, oder multi-step stress relief to reduce stress.

4. Workpiece Stress Exceeds Bond Strength

• Ursache: During use, Die peak stress on the workpiece is too high.

• Solution: Der bonding hardness should be increased and the peak stress should be reduced.

5. Poor Welding Process

• Ursache: Improper welding process can lead to loss of hardness in the overlay.

• Solution: Der welding method should be improved to maintain the quality of the weld.

Zusammenfassung

Weld overlay is a kostengünstig Und efficient method for surface repair. It is widely used in many industries. To ensure the cladding layer works well, the method should:

• Minimize base material dilution

• Sicherstellen high deposition efficiency

• Produce a durable and well-bonded overlay

High-quality and low-dilution cladding techniques are strongly recommended.

Bilden: Weld Overlay Peeling – Causes and Solutions