Submerged Arc Wear-Resistant Composite Steel Plate-Teda Metal

Submerged Arc Wear-Resistant Composite Steel Plate

Submerged Arc Wear-Resistant Composite Steel Plate: Process Characteristics and Applications

1. High Production Rate

Submerged arc cladding boasts a high production rate due to its use of large currents, typically between 300-500A and sometimes reaching up to 900A. This allows for a high deposition speed.

2. Mechanization and Automation

The process is highly mechanized and automated. It produces a cladding layer with stable performance and an attractive appearance, rarely exhibiting defects like pores or slag inclusions. The welders do not need advanced skills, yet the resulting submerged arc composite steel plates offer excellent wear resistance.

3. Clean and Safe Operation

The arc is completely covered by flux, preventing spatter and reducing cleaning efforts. Additionally, there is no arc radiation, eliminating the need for special protective gear for the operator.

4. Equipment Limitations

The equipment used is large and difficult to move, making on-site cladding challenging. Flux must be dried and stored properly before use.

5. Heat and Dilution Concerns

The heat transferred to the workpiece is higher than in other arc welding methods, resulting in a high dilution rate. To achieve the desired performance, 2-3 layers are often necessary. Due to the significant thermal gradient, preheating and slow cooling are usually required to prevent cracking. However, if the preheating temperature exceeds 315℃, slag removal can become difficult.

6. Suitable Workpiece Types

The process creates a large molten pool, making it suitable only for horizontal position surfacing. It is ideal for cylindrical and large flat workpieces but not for small parts.

Applications

Submerged arc surfacing is the most widely used method for surfacing iron-based materials. It is commonly employed for surfacing corrosion-resistant layers on the inner walls of large-diameter containers and for adding wear-resistant layers to rolling mill rollers. This method is also the primary way to produce wear-resistant composite steel plates.