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Huaheng's TIG Root Pass Welding Process for Pipe Prefabrication

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Kunshan Huaheng Welding Co., Ltd.

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Huaheng's TIG Root Pass Welding Process for Pipe Prefabrication

Welding process : Single-sided welding with double-sided formation

Misalignment : ≤2mm

Clearance : 0-3mm

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The TIG root pass process for pipe prefabrication is the only one that realizes one-side welding with double-sided formation. It is the most advanced process in the industry, requiring less fit-up requirements.

Huaheng's TIG Root Pass Welding Process for Pipe Prefabrication

Requirements for TIG welding for root pass:

AVC function for TIG.
Key mechanism: open headstock, which solves the radial and axial jumping during rotation.
Mature welding process experience is essential.
Cold cut process and professional cut and/or bevel machine are required for edge preparation.
The misalignment should be ≤2mm.
Clearance: 0 - 3mm (with or without clearance fit-up).

Huaheng's TIG Root Pass Welding Process for Pipe Prefabrication

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TIG Root Pass Welding Process

Pipe Prefabrication machine

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