Tube Mil-Roller Set-Foshan YXH Tube Mill & Mould Co.,Ltd
What is the process of welded steel pipe production?
What is the process of welded steel pipe production?
Category：
2024-12-11
The production process of welded steel pipes involves forming and welding steel strips or plates into a pipe shape. Below is a detailed breakdown of the process:
1. Raw Material Preparation
Steel Strips : High-quality steel strips or plates are selected as raw materials.
Uncoiling and Leveling: Steel strips are uncoiled, flattened, and trimmed to the desired width for pipe production.
Uncoiling and Leveling: Steel strips are uncoiled, flattened, and trimmed to the desired width for pipe production.
2. Forming
Roll Forming: The steel strip is gradually formed into a circular, square, or rectangular shape using a series of rollers.
Edge Preparation: The edges of the strip are prepared to ensure proper alignment for welding.
Edge Preparation: The edges of the strip are prepared to ensure proper alignment for welding.
3. Welding
The formed steel strip edges are joined together using one of the following welding methods:
a. High-Frequency Electric Resistance Welding (HF-ERW)
An electric current heats the edges of the steel, and pressure is applied to forge the weld.
Common for straight-seam pipes, especially for smaller-diameter pipes.
b. Tungsten Inert Gas Welding (TIG Welding or GTAW)
In TIG welding, a non-consumable tungsten electrode is used to create the arc, while an inert gas (such as argon) protects the weld from contamination.
c. Laser Welding
A focused laser beam creates precise and high-quality welds.
Ideal for thin-walled or high-precision pipes.
a. High-Frequency Electric Resistance Welding (HF-ERW)
An electric current heats the edges of the steel, and pressure is applied to forge the weld.
Common for straight-seam pipes, especially for smaller-diameter pipes.
b. Tungsten Inert Gas Welding (TIG Welding or GTAW)
In TIG welding, a non-consumable tungsten electrode is used to create the arc, while an inert gas (such as argon) protects the weld from contamination.
c. Laser Welding
A focused laser beam creates precise and high-quality welds.
Ideal for thin-walled or high-precision pipes.
4. Weld Seam Processing
Trimming and Smoothing: Excess material around the weld seam is removed for a smooth finish.
5. Sizing and Shaping
The pipe is passed through sizing rollers to achieve the exact dimensions, shape, and roundness.
6. Testing and Inspection
Eddy current test system: If weld quality defects occur, it will be marked and the system will give an alarm.
7. Cutting
Cutting: Pipes are cut to the required length.
8. Packaging and Shipment
Pipes are bundled or packed according to customer requirements and prepared for transportation.
Summary of Key Steps:
Raw Material Preparation: Steel strips or plates are prepared.
Forming: Steel coil is shaped into a pipe form.
Welding: Edges are joined using methods like HF-ERW, TIG welding, or laser welding.
Finishing: Pipes are sized, inspected, and treated for final delivery.
This process is efficient, cost-effective, and allows the production of pipes in a wide range of sizes and specifications for industries like construction, oil and gas, and water transportation.
Forming: Steel coil is shaped into a pipe form.
Welding: Edges are joined using methods like HF-ERW, TIG welding, or laser welding.
Finishing: Pipes are sized, inspected, and treated for final delivery.
This process is efficient, cost-effective, and allows the production of pipes in a wide range of sizes and specifications for industries like construction, oil and gas, and water transportation.
Keywords：
steel pipe production
CONTCT US
E-mail: fsyxh10@tubemakingmachine.com
Add: No.1-3 Baijinhui Workshop Office Muyuan Village Shishan Town, NanHai District, Foshan City, Guangdong Province, P.R China.
