Cradle to Gate
Identity ID
eb6f7fc0-ebdc-4e78-8895-cf1abc47537d
Materials
Associated ID
89d5acc8-8da2-4556-8d63-0988c66376f1
Included activities starts
Included activities ends
Description
Cold-rolled hard coil, also known as silicon steel hard coil, is a special type of cold-rolled steel primarily used in electromagnetic applications such as the manufacture of transformers and motors. The production process of cold-rolled hard coil includes pickling and cold rolling of hot rolled coils, covering energy consumption, material consumption, waste treatment, and environmental emissions during production. This dataset is formed by merging data from multiple sources.
Activity Description
The production process of cold-rolled hard coils includes pickling and cold rolling of hot-rolled coils, covering energy consumption, material consumption, waste treatment, and environmental emissions required during the production process.
Process Description
Cold-rolled hard steel coil, also known as hard-rolled coil, is a special type of cold-rolled steel primarily used in electromagnetic applications such as the manufacturing of transformers and electric motors. This steel typically contains 2% to 4% silicon. The addition of silicon significantly enhances the material's electromagnetic properties, particularly by reducing eddy current losses and increasing electrical resistivity, which is crucial for improving the efficiency and performance of electrical equipment.
Time period
2021
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Using hot rolled steel coils as raw material, after pickling to remove the oxide scale, continuous cold rolling is carried out to produce hard-rolled coils. Due to cold work hardening caused by continuous cold deformation, the strength and hardness of the hard-rolled coils increase, while toughness and ductility decrease. Therefore, their stamping performance is relatively poor, and they can only be used for parts requiring simple deformation.