Continuous Annealing Line (CAL)

Continuous Annealing Line (CAL) by United Enterprises is a continuous annealing process which integrates seven processes of un-coiling, welding, heating, annealing, cooling, shearing, and coiling.

Continuous Annealing Line (CAL):-

Continuous Annealing Line (CAL) by United Enterprises is a continuous annealing process which integrates seven processes of un-coiling, welding, heating, annealing, cooling, shearing, and coiling.

After cold rolling, continuous annealing lines (CAL) are utilized to soften the material.

The Continuous Annealing Line (CAL) provides continuous and reliable operation for high yield, with annealing process speeds up to 800 m/min and entry/exit speeds up to 1,000 m/min.

In contrast to the batch process, the continuous annealing of steel strip provides some undeniable quality advantages, particularly in terms of heating and cooling homogeneity.

Components:

Un-coiler: The Entry level Un-coiler uncoils the cold-rolled sheet so that it can be fed into the bridle roller and processed further.

Welding machine: The Welding machine enables continuous strip feeding by automatically welding two strips together.

De-greasing unit: This is where the strip is cleaned of residual rolling oil, iron dust, and other impurities. It begins with an alkaline solution spray cleaning and an electrolytic cleaning process, followed by brushing. The strip is then rinsed with hot water to remove the solution before being dried with hot air.

Entry Accumulator: The strip looper compensates interruptions in strip feeding such as welding the coils together. A vertical or horizontal accumulator is created to meet the needs of the client to maximize space utilization.

Annealing Furnace: The Annealing Furnace heats the strip to between 750 and 850 °C. This is the temperature range required for re-crystallization of formed and solidified grains. The oxides on the surface are also reduced by annealing. The strip is cooled in stages to approx. 460 to 480 °C after it has been properly annealed.

Ammonia Cracker: The Ammonia Cracker is used to provide an inert reducing atmosphere inside the Annealing Furnace. The capacity of Ammonia Cracker used is 60 Nm3/Hr.

Exit Accumulator: A Vertical or Horizontal accumulator is also put at the exit area to enable uninterrupted operation even during maintenance or coil changes.

Coiler: The strip is continuously coiled into coils on a coiler when it reaches the end of the Continuous Annealing Line (CAL), and then is transported away.

Continuous Annealing Line Manufactures & Suppliers:-

Continuous Annealing Line (CAL) manufactured by United Enterprises is a continuous annealing process which integrates seven processes of un-coiling, welding, heating, annealing, cooling, shearing, and coiling.

After cold rolling, continuous annealing lines (CAL) are utilized to soften the material.

United Enterprises manufactures and exports complete SS sheet annealing line which provides continuous and reliable operation for high yield, with annealing process speeds up to 800 m/min and entry/exit speeds up to 1,000 m/min.

In contrast to the batch process, the continuous annealing of steel strip provides some undeniable quality advantages, particularly in terms of heating and cooling homogeneity.

We have extensive in-house facility of manufacturing the complete line.

Characteristics of Continuous Annealing Line (CAL):

• India’s 1stIndigenously developed Continuous Annealing Line

• Includes Un-coiler, Briddle Roller, Shearing machine, Pinch Rollers, HorizontalAccumulator & Re-coiler

• Heating muffle made of special stainless-steel alloy

• Stainless steel and refractory steel cooling chamber

• 15-60 NM3/hr. Ammonia Cracker which is also manufactured by United Enterprises

• Automatic temperature regulation

• Automatic speed/ tension control with respect to pre-fed Recipe

• Fully automated SCADA systems with improved data collecting and reporting capabilities

List of units manufactured by United Enterprises:

Un-coiler: The Entry level Un-coiler uncoils the cold-rolled sheet so that it can be fed into the briddle roller and processed further.

Welding machine: The Welding machine enables continuous strip feeding by automatically welding two strips together.

De-greasing unit: This is where the strip is cleaned of residual rolling oil, iron dust, and other impurities. It begins with an alkaline solution spray cleaning and an electrolytic cleaning process, followed by brushing. The strip is then rinsed with hot water to remove the solution before being dried with hot air.

Entry Accumulator: The strip looper compensates interruptions in strip feeding such as welding the coils together. A vertical or horizontal accumulator is created to meet the needs of the client to maximize space utilization.

Annealing Furnace: The Annealing Furnace heats the strip to between 750 and 850 °C. This is the temperature range required for re-crystallization of formed and solidified grains. The oxides on the surface are also reduced by annealing. The strip is cooled in stages to approx. 460 to 480 °C after it has been properly annealed.

Ammonia Cracker: The Ammonia Cracker is used to provide an inert reducing atmosphere inside the Annealing Furnace. The capacity of Ammonia Cracker used can be up to 60 Nm3/Hr.

Exit Accumulator: A Vertical or Horizontal accumulator is also put at the exit area to enable uninterrupted operation even during maintenance or coil changes.

Coiler: The strip is continuously coiled into coils on a coiler when it reaches the end of the Continuous Annealing Line (CAL), and then is transported away.

Continuous Annealing Line Exports & Suppliers:

United Enterprises is over 25+ years experienced Continuous Annealing Line (CAL) manufacturers in India. We design, manufacture, supply, export, and commission tailor made Continuous Annealing Line (CAL) all over Asia and Europe. We are an established Continuous Annealing Line (CAL) manufacturer and exporter in India, having been founded in 1998. We have established a reputation for excellence as top furnace suppliers in India, manufacturers in India, and exporters in India. All our products are manufactured in compliance with CE and ISO standard. We are among the top Indian Continuous Annealing Line (CAL) manufacturers who offer cutting-edge technology for the highest possible efficiencies in Indian furnaces.


External Dimensions Length ~50m to 120m
Application Annealing of low carbon & SS sheets
Working Temperature 680°C to 1080°C
Maximum Temperature 1120°C
Production Capacity (0.250 to 5.0) MT/Hr.
Heating Power (200 to 950) kW
Power Supply 400V - 50/60 Hz - 3 phase
Strip Thickness (0.1 to 2.0) mm
Strip Width 300mm/ 550mm/ 1100mm
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United Enterprises

Pankaj Gupta (Proprietor)

Technical Shed No. 2, Plot No. 11, MIDC, Badlapur Industrial Area

Badlapur (East), Thane - 421 503, Maharashtra, India

+91 9820841600 info@unient.co.in