Laser cladding hydraulic column repair
In fully mechanized coal mining operations, hydraulic supports are one of the most commonly used pieces of mechanical equipment. Using hydraulic supports to support the roof improves the safety of coal mining operations.
However, the working conditions in underground coal mines are harsh, posing a significant challenge to the wear and corrosion resistance of hydraulic supports, especially in the humid underground environment containing corrosive media such as Mg2+, SO42-, HS-, and Cl-.
TFMS13B, as a stainless steel, has high hardness and wear resistance, and also possesses superior corrosion resistance compared to TFMS13A, with a laser cladding hardness of 48-52 HRC. Compared to traditional hard chrome plating, TFMS13B laser cladding offers better corrosion and wear resistance, helps reduce total cost of ownership by extending service life, and has a smaller environmental impact.
Range of chemical composition
| C | Cr | Ni | Mo | Mn | Si |
|---|---|---|---|---|---|
| ≤0.17 | ≤19.0 | ≤2.60 | ≤0.60 | ≤0.35 | <1.2 |
Physical properties
| Granularity range | 53-150 µm |
|---|---|
| Hardness | 50 -52 HRC |
| Hallflow rate | ≤16 s/50 g |
| Loose packing density | 4.34 g/cm3 |
Corrosion resistance test
| Neutral spray test GB / T 10125 – 2021 | 4000 |
|---|
Download the TFMS 13B datasheet (PDF)
More grades: Metal Powders. Where to buy: Service Network.
