 |
| Quantity: | |
|---|---|
|
| |
61L1-3029
YASSIAN or Your's
How can the service life of remanufactured bucket teeth be extended
The remanufacturing of bucket teeth significantly extends their service life through material upgrading, surface strengthening and process innovation. The core technical solutions are as follows:
I. strengthening technology of wear-resistant coating
Tungsten carbide thermal spraying
By using high-speed oxygen fuel spraying (HVOF) to accelerate tungsten carbide particles to 500m/s for deposition, a dense coating with a porosity of less than 1% and a hardness of ≥60 HRC is formed, and the wear resistance is enhanced by 300%.
The coating is mechanically bonded to the substrate to prevent high-temperature deformation (substrate temperature rise < 200℃).
PVD super-hard coating
By physically vapor deposition and coating the surface of the bucket teeth with ArriNACIN, the cutting life is increased by 19%, making it suitable for high-intensity working conditions such as titanium alloys.
⚡ 2. Precision repair by laser cladding
Metallurgical bonding layer strengthening
High-energy laser cladding of carbonized alloys (such as Stellite6+WC powder) forms a metallurgical bonding layer, with a surface hardness of HRC55-62 and a 30% increase in fatigue resistance.
The heat-affected zone should be no more than 1mm, and the dilution rate should be less than 5% to avoid damage to the substrate performance.
Compound process application
Tooth tip impact zone : First, surfacing to restore the size, then laser cladding tungsten carbide coating, which doubles the service life;
Tooth surface furrow wear : the bonding strength after HVOF coating repair is greater than 80MPa.
III. Upgrading of base materials
Forged steel replaces casting
By using forging steel grades such as XXDC and F-23 and eliminating shrinkage cavity defects through controlled cooling process, the hardness and toughness are comprehensively enhanced by 20%.
Matrix regeneration standard
Before repair, the hardness of the substrate should be ≥40 HRC, and the micro-decarburization layer needs to be ground and removed.
IV. Comparison of technical economy and service life
Technical path extended service life cost savings
Tungsten carbide coating reduces maintenance costs by 40% by 300%
The laser cladding composite process is 200% lower than that of new parts by 50%
The comprehensive improvement of forging steel matrix recycling by 20% reduces costs over a long period
Note: Industry practices in 2025 have shown that adopting a bucket tooth remanufacturing solution of "precision repair + wear-resistant coating" can reduce the total life cycle cost of equipment by 30% to 50%, and at the same time, cut resource consumption by more than 40%.
How can the service life of remanufactured bucket teeth be extended
The remanufacturing of bucket teeth significantly extends their service life through material upgrading, surface strengthening and process innovation. The core technical solutions are as follows:
I. strengthening technology of wear-resistant coating
Tungsten carbide thermal spraying
By using high-speed oxygen fuel spraying (HVOF) to accelerate tungsten carbide particles to 500m/s for deposition, a dense coating with a porosity of less than 1% and a hardness of ≥60 HRC is formed, and the wear resistance is enhanced by 300%.
The coating is mechanically bonded to the substrate to prevent high-temperature deformation (substrate temperature rise < 200℃).
PVD super-hard coating
By physically vapor deposition and coating the surface of the bucket teeth with ArriNACIN, the cutting life is increased by 19%, making it suitable for high-intensity working conditions such as titanium alloys.
⚡ 2. Precision repair by laser cladding
Metallurgical bonding layer strengthening
High-energy laser cladding of carbonized alloys (such as Stellite6+WC powder) forms a metallurgical bonding layer, with a surface hardness of HRC55-62 and a 30% increase in fatigue resistance.
The heat-affected zone should be no more than 1mm, and the dilution rate should be less than 5% to avoid damage to the substrate performance.
Compound process application
Tooth tip impact zone : First, surfacing to restore the size, then laser cladding tungsten carbide coating, which doubles the service life;
Tooth surface furrow wear : the bonding strength after HVOF coating repair is greater than 80MPa.
III. Upgrading of base materials
Forged steel replaces casting
By using forging steel grades such as XXDC and F-23 and eliminating shrinkage cavity defects through controlled cooling process, the hardness and toughness are comprehensively enhanced by 20%.
Matrix regeneration standard
Before repair, the hardness of the substrate should be ≥40 HRC, and the micro-decarburization layer needs to be ground and removed.
IV. Comparison of technical economy and service life
Technical path extended service life cost savings
Tungsten carbide coating reduces maintenance costs by 40% by 300%
The laser cladding composite process is 200% lower than that of new parts by 50%
The comprehensive improvement of forging steel matrix recycling by 20% reduces costs over a long period
Note: Industry practices in 2025 have shown that adopting a bucket tooth remanufacturing solution of "precision repair + wear-resistant coating" can reduce the total life cycle cost of equipment by 30% to 50%, and at the same time, cut resource consumption by more than 40%.
