Process Technology

Technical coverage across the complete aluminum-processing value chain.

01
Process Stage

Aluminum Melting

铝熔炼工艺

The melting stage converts ingot, scrap or primary aluminum into clean liquid metal at a controlled casting temperature.

Key Process Parameters

  • ▸Melting temperature: 720–780°C
  • ▸Gas consumption: ≥52 m³/T·Al with regenerative burners
  • ▸Rotary degassing with N₂/Ar
  • ▸OES composition analysis before casting
  • ▸Bag-filter and wet-scrubber emission control
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Aluminum Melting process
02
Process Stage

DC Casting

半连续铸造工艺

Direct-chill casting produces aluminum billets and rolling slabs with controlled cooling, surface quality and grain structure.

Key Process Parameters

  • ▸Round billet: Ø63–600 mm
  • ▸Slab: up to 1300 × 460 mm
  • ▸Casting speed: 10–500 mm/min
  • ▸Surface segregation: <0.3 mm with slip casting
  • ▸Alloys: 1xxx–8xxx
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DC Casting process
03
Process Stage

Homogenizing

均匀化处理工艺

Homogenizing heat treatment reduces residual stress and microstructural non-uniformity in cast billets before extrusion.

Key Process Parameters

  • ▸Furnace capacity: 8–60 T
  • ▸Maximum temperature: 650°C
  • ▸Temperature accuracy: ±5°C
  • ▸Natural gas: 25–35 m³/T billet
  • ▸Charging-car alignment: ≤5 mm
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Homogenizing process
04
Process Stage

Continuous Casting

连续铸造工艺

Continuous casting produces aluminum rod or strip directly from molten metal, reducing intermediate processing and energy consumption.

Key Process Parameters

  • ▸CC&R rod: Ø8 mm, 3–12 T/hr
  • ▸Twin-roll strip: 4–8 mm thick, up to 1600 mm wide
  • ▸Typical alloys: 1050, 1350 and EC grade
  • ▸Energy saving: 35–45% versus conventional routes
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Continuous Casting process
05
Process Stage

Hot & Cold Rolling

冷热轧制工艺

Rolling converts slab or cast strip into coil, sheet and foil at controlled gauge, flatness and surface quality.

Key Process Parameters

  • ▸Cold-rolling range: 0.006–6 mm
  • ▸Strip width: 300–1850 mm
  • ▸Maximum speed: 400 m/min for cold rolling
  • ▸AGC gauge control: ±0.005 mm
  • ▸Closed-loop rolling-oil management
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Hot & Cold Rolling process
06
Process Stage

Extrusion

铝挤压工艺

Heated billets are forced through precision dies to produce profiles, tubes and rods for architectural and industrial use.

Key Process Parameters

  • ▸Billet temperature: 450–520°C
  • ▸Press force: 500T–3600T
  • ▸Extrusion speed: 5–50 m/min
  • ▸Water quench, stretching and T5/T6 aging
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Extrusion process
07
Process Stage

Annealing

退火工艺

Annealing relieves cold-work hardening and restores ductility for coil, sheet and foil production.

Key Process Parameters

  • ▸Temperature: 300–400°C depending on alloy
  • ▸Box-furnace load: 5–30 T
  • ▸Continuous line: up to 300 m/min
  • ▸Strip range: 0.1–3 mm
  • ▸Output tempers: O, H14 and H18
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Annealing process
08
Process Stage

Slitting

铝带分条工艺

Slitting converts wide master coils into narrow strips with accurate width, controlled tension and clean edges.

Key Process Parameters

  • ▸Input width: 200–1850 mm
  • ▸Thickness: 0.1–6 mm
  • ▸Width tolerance: ±0.05 mm
  • ▸Line speed: up to 500 m/min
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Slitting process
09
Process Stage

Circle Punching

铝圆片冲压工艺

Circle punching transforms aluminum strip into round blanks for cookware, spinning and stamping applications.

Key Process Parameters

  • ▸Circle diameter: Ø80–400 mm
  • ▸Strip thickness: 0.8–5.0 mm
  • ▸Press speed: up to 120 strokes/min
  • ▸Material yield: 82–90%
  • ▸Edge burr: ≤0.05 mm
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Circle Punching process
Full Integration

Complete Process Overview

01
Aluminum Melting
铝熔炼
›
02
DC Casting
半连续铸造
›
03
Homogenizing
均匀化处理
›
04
Continuous Casting
连续铸造
›
05
Hot & Cold Rolling
冷热轧制
›
06
Extrusion
铝挤压
›
07
Annealing
退火
›
08
Slitting
铝带分条
›
09
Circle Punching
铝圆片冲压

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