II Summary

This high-frequency welding pipe mill is specialized equipment to produce high frequency straight seam welded pipes for structural pipe and industrial pipe with 32mm~89mm and wall thickness of 1.2~3.75mm. Through optimization design, best materials choice, and accurately fabrication and rolls, the whole line can be reached high precision and high speed. Within suitable range of pipe diameter and wall thickness, pipe production speed can be adjusted.

 

III General technical specification

1. Raw material requirements

Material: Hot rolling or cold rolling steel

Tensile strength: σb≤600Mpa

Yield point: σs≤315MPa

Coil width: 100~280mm

Coil outer diameter: Max. Φ1600mm

Coil inner diameter: 508mm

Coil weight: Max.2.5T

Material thickness: 1.2~3.75mm for Round pipes / ≤3.2mm for Square & rectangle pipes

 

2. Output product scope

Pipe type: Straight seam high frequency welded pipes

Pipe purpose: Electric heating tube, fridge pipe, Auto car pipe, sporting facility tube, furniture pipe, cooler pipe, pressure feeding pipe, construction pipe, configuration pipe.

Round pipe size: 32mm~89mm * 1.2mm~3.75mm

Square pipe size: 25×25mm~70×70mm * 1.2mm~3.2mm

Rectangle pipe size: 20×40mm~45×90mm * 1.0mm~3.2mm (a:b≤2:1)

Producing length: 4~10m (can be designed by customer request)

Cutting length precision: ±3mm (by hot frication computer saw)

 

3. Line capability

Line direction: Pending and will be decided by Buyer

Producing speed: 30~80m/min

 

4. Scope of supply

4.1. Technology process

Uncoiling→ Accumulating→ Leveling→ Forming→ HF welding→ Deburring (outer) → Cooling→ Sizing→ Straightening→ Cutting→ Discharging

4.2. Parts of Line

Double heads Decoiler--------------------------------1 set

Shear & butt welding device-------------------------Optional

Horizontal accumulator--------------------------------1 set

Forming & Sizing unit----------------------------------1 set

Hot frication saw----------------------------------------1 set

Run out table (single side discharging)-----------1 set

Control system------------------------------------------1 set

Roller------------------------------------------------------Optional / prepared by Buyer

Pneumatic system--------------------------------------Prepared by Buyer