During the overhaul of the hydraulic support for fully mechanized mining, the maintenance of the accessories hydraulic cylinder is the main part. Due to the limitation of the mine environment, the exposed part of the cylinder needs to be treated with anti-rust. The treatment methods include electroplating chromium plating and laser cladding.

Features of electroplating chrome on the cylinder of fully mechanized mining hydraulic support accessories for coal mine:

1. There is a physical combination between the coating and the cylinder surface. The chromium plating layer is easy to crack, bubble and rust when it is impacted.

2. Electroplating causes great environmental pollution, causing water source pollution and environmental damage;

3. The coating cannot be recycled

Features of laser cladding on cylinder of hydraulic support accessories for fully mechanized mining in coal mine:

1. The laser cladding layer and the exposed layer of the hydraulic cylinder are combined by metallurgy. The cladding layer has fine structure, uniform hardness and no cracks, good corrosion resistance and long service life.

2. The cladding powder can be freely proportioned according to the material of the cylinder body and the requirements of use to meet different maintenance requirements;

3. The heat affected area of the hydraulic cylinder is very small, and the thermal deformation is small;

4. Partial repair after cladding.

Since I know the difference between chrome plating and laser cladding in cylinder maintenance of fully mechanized coal mining hydraulic support accessories, I will never worry about maintenance of hydraulic support!