Seamless steel pipe production equipment points

The production equipment of seamless (smls) steel pipes involves a series of points to ensure quality and durability. Here is an overview of the points to seamless steel pipe production equipment.

Oiling and Marking

Corrosion Prevention: After hydrostatic testing, the steel pipes are oiled to prevent corrosion.

User-Specific Marking: Pipes are marked according to user requirements for identification and tracking.

Leveling and Milling

Flattening: The steel anvil machine flattens the original curl of the steel.

Edge Milling: The edges of the steel are milled on both sides to meet requirements for width, edge parallelism, and groove shape.

Shear Forming

Curling into Tubes: The steel plate is curled along its outer edge to form a tube.

Butt Cutting

Advanced Welding: Seamless steel pipe equipment uses advanced technology for pre-double submerged arc welding, internal welding, and external welding.

Plasma Cutting: The welded steel pipe is cut to specification length using a plasma-foot cutter.

Visual Inspection

Basic Parameter Check: Professional and technical personnel conduct visual inspections to check basic parameters.

Ultrasonic Flaw Detection

100% Inspection: Both the inner and outer sides of the base metal and weld seam undergo 100% ultrasonic inspection to detect any flaws.

X-ray Detection

Industrial TV Check: Internal and external welds are subjected to 100% X-ray inspection using an industrial TV check image processing system to ensure detection sensitivity.

Pressure Testing

Hydrostatic Testing: Each steel pipe is tested individually on a hydrostatic testing machine to ensure the pipe meets required pressure standards.

Chamfering and Flattening

End Processing: After passing inspection, the pipe ends are processed to meet groove dimension requirements.

Final Inspection

Comprehensive Testing: Pipes undergo another round of ultrasonic and X-ray detection, as well as magnetic particle inspection, to check for any defects in the pipe ends or welding.

Unwinding and Testing

Full-Board Ultrasonic Testing: After entering the unwinding plate production line, the first full-board undergoes ultrasonic testing.