Main equipment of producing LSAW steel pipe

Producing Longitudinal Submerged Arc Welded (LSAW) steel pipes involves several critical pieces of equipment to ensure precision, quality, and efficiency. The main equipment used in the production process are as follows.

Steel Milling Machine

Function: Machining the two sides of the sheet metal to the desired form in one pass.

Purpose: Ensuring the parallelism of the two plates within specified tolerances to prepare for manufacturing high-precision steel pipes.

Plate Pre-Bending Machine

Function: Pre-bending the edges of the welded steel plate processed by the milling machine.

Purpose: Preventing long straight edges during the forming process, the edges of the steel plate are bent to match the radius of the steel pipe, ensuring roundness.

Automatic Steel Tube Forming Machine

Function: Completing the bending and forming of various sheet metal into pipe shape.

Pipe Pre-Welding Machine

Function: Pre-welding the open pipe blanks formed by the forming machine.

Purpose: Preparing the pipe blanks for subsequent internal and external welding.

Double Wire Welding Machine

Function: Performing automatic submerged arc welding on large diameter straight seam steel pipes.

Mechanism: A welding trolley transports the workpiece along a track to align with the host for precise welding.

Pipe Finishing Machine

Function: Applying strong external pressure to long round tubes with poor roundness.

Purpose: Adjusting the roundness of the pipe to meet relevant standards and requirements.

Gantry Mobile Sensory Straightening Machine

Function: Straightening the steel cylindrical tube to ensure it meets specifications.

Straight-Seam Flat-Head Chamfering Machine

Function: Blunting and chamfering the ends of straight seam steel pipes according to specified angles.

Steel Pipe Expanding Machine

Function: Eliminating stress in the steel pipes to ensure structural integrity.

3000T Hydraulic Pressure Testing Machine

Function: Conducting pressure tests on welded pipes.

Purpose: Eliminating welding and forming stress, and checking for infiltration defects under specified pressure to ensure the performance of the steel pipes.

Each piece of equipment plays a crucial role in ensuring that the final LSAW steel pipes meet stringent quality standards and performance requirements, making them suitable for various industrial applications.