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Forming Methods and Connection Types of Large-Diameter Steel Pipes
Currently, the main production processes for large-diameter steel pipes in my country are hot-rolled large-diameter steel pipes and hot-expanded diameter steel pipes. The largest specifications for hot-expanded seamless steel pipes are 325mm-1220mm, with a thickness of 120mm. Hot-expanded seamles...Read more -
Comparison of Plastic-Coated Steel Pipes and 3PE Anti-corrosion Steel Pipes
Plastic-coated steel pipes, also known as plastic-coated steel pipes, steel-plastic composite pipes, or plastic-coated composite steel pipes, use steel pipes as the base material and PE (modified polyethylene) or EP (epoxy resin) as the main anti-corrosion material through hot-dip plastic coating...Read more -
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