Manufacturing Process
The manufacturing processes utilizes the latest technology for producing high quality cold Rolled steel coils and sheets.
H.R. Coils are procurred from integrated steel plants e.g. SAIL, TATA, and ISPAT etc to ensure the desired raw material
standard to meet stringent quality.
H.R. SLITTER
The pull through H.R. Slitting line slits the rough edges of the H.R. Coils
Pickling
In Semi continuous line surface ferrous scale of H.R. Coils is removed with the usage of warm Hydrochloric Acid. Coil is subsequently rinsed with cold and hot water. The access water on the strips is dried at hot air blower. |
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Cold Rolling
6 Hi Rolling Mill (wider) - One
4 Hi Rolling Mill (narrow) - Two
The Pickled H.R. Coils are cold rolled to required thickness in several passes.
Mills are equipped with all facilities to ensure -- Closure dimensional.
Tolerances, shape and size
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Annealing
To attain required properties for formability, cold rolled coils are annealed in protective (non-oxidizing) nitrogen atmosphere. Furnaces are equipped with all required auto controls..
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Skin Passing
Skin passing of cold rolled steel coils is carried out to
remove stretcher strain
obtain desired finish such as mat or bright
achieve flatness
CR Slitters
By the precision slitting machines coils are slit to the required width / to cater to the diversified need of customers.
Cut to Length
Coils are cut into sheets as per customer requirements.
Oiling
The coils and sheets are provided with a uniform coating of rust preventive oil to protect surface from rusting, atmospheric corrosion. This also facilitates storage for long duration.
Packing
The coils / sheets are first covered by Polyethene sheet. These are covered by Hessian and sheet metal packaging as per customer’s requirement. These are tied with steel straps to avoid any damage in handling, transportation and storage.
