Geological Core Pipe
Overview: The Geological Core Pipe is an indispensable tool in geological exploration, designed to retrieve core samples during drilling operations. These hollow steel tubes feature male and female couplings at both ends, facilitating easy connection and extension to meet the demands of deep underground operations reaching several kilometers in depth.
Material Selection:The raw material commonly used for geological core pipes is 26CrMo-1 alloy steel pipe, known for its excellent mechanical and processing properties.Geological Core Pipe
Coupling Design:The ends of the geological core pipes are machined to form male and female couplings, allowing for convenient connection and extension.
Geological Core Pipe Processing Technology:To enhance the performance and service life of core pipes, a specific set of processing techniques is employed:
Heat Treatment: This includes quenching and tempering steps aimed at improving the mechanical properties of the material. The quenching temperature is controlled between 870℃ and 890℃, while the tempering temperature is maintained between 540℃ and 560℃.
Cold Drawing: Following heat treatment, the pipes undergo cold drawing to achieve the desired uniform wall thickness, roundness, and straightness.
Performance Indicators and Quality Control:Performance Indicators: After the aforementioned processes, core pipes should meet certain performance benchmarks, including a tensile strength of ≥1000MPa, a yield strength ranging from 930MPa to 1140MPa, and an elongation of ≥10% .
Quality Control: Hardness testing and non-destructive testing are conducted after critical steps to ensure each product meets high standards.
Common Specifications and Parameters:
Small Bore Core Pipes: Such as 43mm 50mm 56mm 73mm 89mm diameter core pipes, suitable for various geological drilling operations.
Large Bore Core Pipes: Ranging from 108mm 127mm 146mm 168mm 194mm 219mm 245mm 273mm 325mm diameter, commonly used in engineering foundation construction, and more.
Application Scenarios:
- Geological Exploration:Used to obtain underground rock samples to understand the structure and properties of geological strata .
- Engineering Drilling:Assists in determining groundwater levels and testing soil properties in fields such as construction and road building.
- Conclusion:The Geological Core Pipe is not just a key tool in geological exploration work; its processing techniques and quality control reflect the high standards of modern manufacturing. By selecting the right supplier and product, you can effectively enhance the efficiency and safety of drilling operations.
