The mill is intended for manufacturing of round pipe of 21.3mm-Φ60.3mm with thickness of 1.6mm–4.5mm from cold-rolled and hot-rolled coil strip by means of unclosed tubular blank with its subsequent welding into tube, edge heating by means of solid state high-frequency welder, longitudinal seam welding in rolls of tube welding machine, cooling, further sizing or shaping and on-stream cutting of endless tube in measured lengths.
Finished product will be of round, square or rectangular pipe.
II. The technical flow of the production line
SteelTape→→ Double-head un-coiler →→Strip-head Cutter and welder→→
Cage Loop→→Forming section（Flattening unit +Main driving unit +Forming unit +Guide unit +High frequency induction welding unit +squeeze roller）+ De-burr frame →→Cooling unit →→ Sizing unit and straightener →→Flying saw under computer-control →→ Run-out table→→ painted
III. Basic conditions:
1. Round Pipe: Φ21.3-Φ60.3mm
Pipe Thickness: 1.6– 4.5mm
2. Square Pipe: 15X15mm –50X50mm
Rectangle Pipe: 10X20mm –60X40mm
Pipe Thickness: 1.6 – 3.5mm
3. Pipe Length: 6.0m – 9.0m
4. Length Tolerance: 0-6mm
b) SteelTape Specification
1. Material: Low Carbon steel
2. Steel Tape: Inner diameter: Φ470-Φ510mm
Outer diameter: Φmax=1500mm
Strip steel width: 60mm-200mm
Strip steel thickness: 1.6mm-4.5mm
The maximum weight: 3.0 tons
c) Electric installed capacity: appro. 600KW
d) Cooling water
1. Reservoir for High Frequency equipment: 20m³, one set
2. Reservoir for circulating cooling water: 15m³, one set
e) Compressed air
1. Pressure: 0.4Mpa
2. Flow: 1.5m3/h
f) Production capacity
Annual output: 30,000 ton, according to the yearly working days、daily working hours and the products.
g) Line speed: 40-90m/min
h) Size of the whole line: appro. 50X6m
China’s Final Port – Mega Structure.
Yangshan Port (Chinese: 洋山港, p Yángshān Gǎng), formally the Yangshan Deep-Water Port (洋山深水港, p Yángshān Shēnshuǐ Gǎng), is a deep water port for container ships in Hangzhou Bay south of Shanghai. Connected to Shanghai’s Pudong New Area by the Donghai Bridge and forming part of the Port of Shanghai, the islands of Greater and Lesser Yangshan are administered separately as part of Zhejiang’s Shengsi County.
Read More: https://en.wikipedia.org/wiki/Yangshan_Port