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Production process of steel plate spiral pipes

2021/10/08

Production process of steel plate spiral pipes

Prior to layout for steel‑plate coiled pipe fabrication, the steel plates must be inspected and aligned using a steel tape measure, and the layout dimensions shall be calculated based on the coil’s nominal diameter. Following layout, punch holes in the steel plates using a template and mark the plate’s centerline. Grooving of the pipe edges shall be performed by mechanical means; thermal processes such as plasma arc or oxy‑acetylene flame may also be employed.

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What causes fractures in spiral tubes?

2021/09/06

What causes fractures in spiral tubes?

During the cold drawing of spiral‑wound tubes, cracks that arise during operation—often due to defects such as cracks in the hot‑rolled tube billet or issues with high‑precision cold‑drawn tubes used to manufacture hydraulic cylinders—are typically brittle fractures, with little to no plastic deformation. Brittle fracture in welded steel pipes can be attributed to a variety of factors.

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The role of straight-seam pipes in various fields

2021/08/30

The role of straight-seam pipes in various fields

Longitudinal seam pipe is a new type of steel pipe formed by welding along a longitudinal seam parallel to the pipe’s axis. It is typically categorized into electric‑welded thin‑walled pipes, metric electric‑welded steel pipes, transformer cooling oil pipes, and other varieties. The manufacturing process for longitudinal seam pipes is simple and easy to operate, resulting in low production costs and rapid development. In recent years, the production technology has steadily matured; with advances in science and technology, the efficiency, quality, and performance of these pipes have improved significantly, while production costs have also been reduced considerably.

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What are the cooling methods for large-diameter steel pipes?

2021/08/16

What are the cooling methods for large-diameter steel pipes?

Large-diameter steel pipes refer to those with an outer diameter of 1,000 mm or greater. Large-diameter seamless steel pipes are manufactured by piercing a steel ingot or solid billet, followed by hot rolling, cold rolling, or cold drawing.

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Maintenance of steel plate rolled pipes is also very important!

2021/07/28

Maintenance of steel plate rolled pipes is also very important!

Steel plate coiled pipe: As everyone knows, it is a highly practical stainless steel product, making it suitable for a wide range of applications. When not in use, steel plate coiled pipes should be stored safely, maintained, and handled with care. Avoid tossing them aside and then putting them away, as improper storage can lead to significant damage. Clearly, proper maintenance of steel plate coiled pipes is also crucial!

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Selecting the right raw materials is crucial when choosing steel plate rolled pipes!

2021/07/07

Selecting the right raw materials is crucial when choosing steel plate rolled pipes!

When manufacturing steel‑plate spiral pipes, certain raw materials are required. To ensure the quality of these pipes, it is essential to address every detail of the production process, starting with the selection of basic raw materials. After all, raw materials form the foundation; only with high‑quality inputs can subsequent operations be reliably assured. The choice of raw materials for steel‑plate spiral pipes is subject to specific requirements—selecting just any material will not suffice. It is imperative to choose appropriately and never cut corners on material quality, as such practices will compromise product integrity. Below are some key principles to guide the production of steel‑plate spiral pipes:

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Guangxi Nanning Canghai Steel Co., Ltd.

2021/06/21

Guangxi Nanning Canghai Steel Co., Ltd.

Guangxi Nanning Canghai Steel Co., Ltd. (hereinafter referred to as Canghai Steel Pipe) specializes in longitudinal seam welded pipes, steel plate‑rolled pipes, large‑diameter steel pipes, spiral pipes, spiral welded pipes, straight‑seam pipes, spiral steel pipes, and steel casing pipes, among others, and is a professional manufacturer of spiral pipes. Established in 2010, the company occupies a site of 30,000 square meters, with a total building area of 12,000 square meters. It operates two double‑sided submerged‑arc spiral welding lines and four double‑sided submerged‑arc straight‑seam welding lines, and is fully equipped with state‑of‑the‑art production facilities, advanced manufacturing processes, and comprehensive testing equipment.

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Causes of Common Problems in Spiral Tube Production

2021/06/08

Causes of Common Problems in Spiral Tube Production

What are the common causes of production problems in spiral tubes? During smelting or hot working, certain factors—such as non-metallic inclusions, gases, improper process selection, or operator error—can give rise to defects within the steel or on its surface. These defects can severely compromise material or product quality and, in some cases, lead to scrap.

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