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Quenching Technology for Straight Seam Welded Steel Pipes
Surface quenching and tempering heat treatment of straight seam welded steel pipes is typically performed using induction heating or flame heating. The main technical parameters are surface hardness, local hardness, and effective hardened layer depth. Hardness testing can be conducted using a Vic...Read more -
How much do you know about corrosion prevention strategies and testing methods for industrial oil casing
First, corrosion prevention strategies for oil casing: 1. First, ensure water quality meets standards. Strictly monitor and manage water quality. Implement separate injection for clean and contaminated water, strengthen the cleaning of the main water pipeline, and ensure that the water quality in...Read more -
Detailed Explanation of Welding Process for Large-Diameter Straight Seam Steel Pipes
Double-wire automatic welding of straight seam steel pipes is a welding technology developed in recent years. Besides possessing the characteristics of semi-automatic single-wire welding, it also features concentrated energy and high deposition efficiency. The main and auxiliary wires are supplie...Read more -
Basic Requirements for the Appearance of Straight Seam Steel Pipe Welds and Production Temperature
First, Basic Requirements for the Appearance of Straight Seam Steel Pipe Welds. Before non-destructive testing of straight seam steel pipes, the appearance of the welds should meet the requirements. The general weld appearance of the straight seam steel pipe welds and the surface of the welded jo...Read more -
Hot Deformation, Microstructure Evolution, and Welding Methods of Thick-Walled Welded Steel Pipes
First. Hot Deformation and Microstructure Evolution of Thick-Walled Welded Steel Pipes Thick-walled welded steel pipes are a difficult-to-deform precipitation-strengthened nickel-based superalloy, similar in composition to the former Soviet Union’s EI929 alloy, exhibiting high levels of sol...Read more -
Commonly Used Quality Inspection Methods for Spiral Steel Pipes in Industry
1. Surface Judgment (Visual Inspection): Visual inspection of welded joints is a simple procedure with various methods, and is an important part of finished product inspection. It mainly focuses on finding surface defects and dimensional deviations in the weld. Generally, it is done by visual obs...Read more