1、 Principles for selecting materials
A rock drill is a commonly used engineering machinery equipment, and the piston, as one of the core components of the rock drill, bears enormous axial and radial pressure. Therefore, the selection of its material is very important. The material of the piston not only directly affects the service life of the machine, but also affects the operational efficiency and stability of the machine.
When selecting piston materials, the following factors need to be considered:
1. Wear resistance: Due to the harsh working environment of the rock drill, the piston is prone to wear, so it is necessary to choose materials with good wear resistance.
2. Strength: The piston needs to withstand tremendous force during operation, so it is necessary to choose materials with high strength.
3. Corrosion resistance: Pistons may be corroded by chemicals during use, so it is necessary to choose materials with good corrosion resistance.
4. Welding performance: Pistons sometimes require welding, so it is necessary to choose materials with good welding performance.
2、 Common materials
1. Cast iron material: Cast iron material has advantages such as wear resistance and good strength, but its corrosion resistance is poor, making it unsuitable for use in humid or chemically corrosive environments.
2. Aluminum alloy material: Aluminum alloy material has the advantages of light weight and high strength, and is suitable for use in rock drill pistons with high quality requirements and small volume.
3. Stainless steel material: Stainless steel material has advantages such as corrosion resistance and good strength, but it is relatively expensive. When choosing, it needs to be considered according to specific circumstances.
4. High strength steel materials: High strength steel materials have advantages such as high strength and good wear resistance, but they are relatively expensive and suitable for long-term use or high-quality rock drill pistons.
In short, selecting the appropriate piston material can improve the service life and stability of rock drills, and reduce maintenance and replacement costs. When selecting materials, it is necessary to consider the specific working environment and requirements, and choose suitable materials.
