Seamless Welding Galvanized Tube Mill Machine

Introduction

Seamless Welding Galvanized Tube Mill Machine is an equipment specialized in producing carbon steel pipes and galvanized pipes. By welding the pipe making machine with die design, the galvanized pipe can be directly and easily squeezed into pipes of different shapes, such as round, square, rectangular, special-shaped, etc. It can produce handrails, railings, tables and chairs and other pipes.

Features

Seamless Welding Galvanized Tube Mill Machine is mainly used in curtain wall, construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation bracket, steel structure engineering, power engineering, power plant, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, etc.

Designed Parameters

Nominal power: 800kW

Rated DC power: Pd=960kW

Rated DC voltage: UdN=450V

Rated DC current: IdN=2130A

The whole efficiency: η≥85%

Output power: Pout>800kW

Designed frequency: f=150-250kHz

MOSFET inverter: 120kW×8

Tank circuit output mode: no welding transformer output, secondary resonance

Power Distribution Requirements

Nominal power: 800kW

Rated DC power: Pd=960kW

Line-in power factor: COSφ≥0.9

Power distribution capacity: S≥1070kVA

Power supply voltage: 3-phase 380V/50Hz

Line-in current: I=1740A

Line-in cable: each phase adopts three pieces of 240mm² copper cable connected in parallel, 3-phase 4-line

Water-Water Cooling System

With the adoption of water-water heat exchanger

Pressure of inner circulation water: 0.15-0.25MPa

Flow of inner circulation water: 45m³/h

Temperature of inner circulation out water: ≤40℃

Temperature of inner circulation back water: ≤55℃

Heat exchanger area: ≥30m²

Flow of external circulation water: 80m³/h (provided by user)

Temperature of external circulation inlet water: ≤35℃

Temperature rise of heat exchanger external circulation water: ≤15℃

Pressure of inlet water: 0.25-0.3MPa (approximately 2.5-3kg/cm²)

Volume for external circulation water pool: ≥80m³ (provided by user)

Production Process

According to different customers, the Seamless Welding Galvanized Tube Mill Machine consists of different processes, but our company has a standard production process, so it is for reference only. Assuming your company has special requirements, we can discuss and carry out special designs.

Uncoiler→Shearing welding machine→Accumulator (cage type)→Forming machine→High frequency welding→Sizing machine→Flying saw (cold saw)→Slapping table

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