A short-process method for manufacturing high-strength steel plates and high-strength steel plates and applications thereof

Abstract

The invention discloses a method for manufacturing a high strength steel sheet in a short process, the high strength steel sheet and application of the high strength steel sheet, and belongs to the field of metallurgy rolling and deep processing. The method comprises the steps that in the treating process of thin slab continuous casting and rolling, a thin slab which is subjected to finish rollingby a finishing mill group is obtained, and then the thin slab is directly cut into a preset size and is subjected to hot stamping processing after meeting the target temperature of hot stamping by induction heating to manufacture the high strength steel sheet. The method for manufacturing the high strength steel sheet in a short process realizes the integrated production from raw materials to products, saves the transportation cost of intermediate links, can achieve the purposes of energy saving, consumption reduction and green production, significantly shortens the overall manufacturing process of plate deep processing, and has the advantages of ultra-short process, deep processing and multi-variety small batch mass customization production.

Description

technical field

[0001] The invention belongs to the field of metallurgical rolling and deep processing, in particular to a short-process method for manufacturing high-strength steel plates, high-strength steel plates and applications thereof. Background technique

[0002] The iron and steel industry is the main carrier of national industrial responsibilities. In the new period of development of China's iron and steel industry, it is currently facing many challenges such as supply-side structural reform, ecological environmental protection, high-quality development, personalized customization and increasingly demanding service requirements. Focusing on process-based intelligent manufacturing and large-scale personalized customization, iron and steel enterprises have accelerated structural adjustment, introduced the most advanced equipment and technology by means of market and reform, continued to promote product upgrades and technological innovation, and achieved transformatio...

Examples

Embodiment 1

[0048] In this embodiment, during the thin slab continuous casting and rolling process, the temperature of the thin slab after the continuous casting treatment is 1500°C, and then after the rough rolling treatment by the rough rolling unit, the temperature drops to 930°C, and the temperature rises to 1100°C after the induction heating treatment , the temperature dropped to 850°C after finishing rolling treatment by the finishing rolling unit.

[0049] After the finishing treatment of the finishing rolling unit, the plate directly enters the hot stamping deep processing, and the shearing device cuts the plate into the shape and size required by the hot stamping die, and enters the subsequent process through the conveying roller table, and is processed in the hot stamping deep processing During the process, the temperature is 850°C, and the temperature is kept for 180-250s, so that the plate forms a stable austenite structure.

[0050] After heat preservation, the high-temperatu...

Embodiment 2

[0055] In this embodiment, during the thin slab continuous casting and rolling process, the temperature of the thin slab after continuous casting is 1500°C, and then after the rough rolling treatment of the rough rolling unit, the temperature drops to 950°C, and the temperature rises to 1150°C after induction heating , the temperature dropped to 880°C after finishing rolling treatment by the finishing rolling unit.

[0056] After the finishing treatment of the finishing rolling unit, the plate directly enters the hot stamping deep processing, and the shearing device cuts the plate into the shape and size required by the hot stamping die, and enters the subsequent process through the conveying roller table, and is processed in the hot stamping deep processing During the process, the temperature is 880°C, and the temperature is kept for 180-250s, so that the plate forms a stable austenite structure.

[0057] After heat preservation, the high-temperature plate is transferred to t...

Embodiment 3

[0062] In this embodiment, during the thin slab continuous casting and rolling process, the temperature of the thin slab after continuous casting is 1500°C, and then after the rough rolling treatment of the rough rolling unit, the temperature drops to 970°C, and the temperature rises to 1200°C after induction heating , the temperature dropped to 910°C after finishing rolling treatment by the finishing rolling unit.

[0063] After the finishing treatment of the finishing rolling unit, the plate directly enters the hot stamping deep processing, and the shearing device cuts the plate into the shape and size required by the hot stamping die, and enters the subsequent process through the conveying roller table, and is processed in the hot stamping deep processing During the process, the temperature is 910°C, and the temperature is kept for 180-250s to make the plate form a stable austenite structure.

[0064] After heat preservation, the high-temperature plate is transferred to the...

technical field

[0001] The invention belongs to the field of metallurgical rolling and deep processing, in particular to a short-process method for manufacturing high-strength steel plates, high-strength steel plates and applications thereof. Background technique

[0002] The iron and steel industry is the main carrier of national industrial responsibilities. In the new period of development of China's iron and steel industry, it is currently facing many challenges such as supply-side structural reform, ecological environmental protection, high-quality development, personalized customization and increasingly demanding service requirements. Focusing on process-based intelligent manufacturing and large-scale personalized customization, iron and steel enterprises have accelerated structural adjustment, introduced the most advanced equipment and technology by means of market and reform, continued to promote product upgrades and technological innovation, and achieved transformatio...

Examples

Embodiment 1

[0048] In this embodiment, during the thin slab continuous casting and rolling process, the temperature of the thin slab after the continuous casting treatment is 1500°C, and then after the rough rolling treatment by the rough rolling unit, the temperature drops to 930°C, and the temperature rises to 1100°C after the induction heating treatment , the temperature dropped to 850°C after finishing rolling treatment by the finishing rolling unit.

[0049] After the finishing treatment of the finishing rolling unit, the plate directly enters the hot stamping deep processing, and the shearing device cuts the plate into the shape and size required by the hot stamping die, and enters the subsequent process through the conveying roller table, and is processed in the hot stamping deep processing During the process, the temperature is 850°C, and the temperature is kept for 180-250s, so that the plate forms a stable austenite structure.

[0050] After heat preservation, the high-temperatu...

Embodiment 2

[0055] In this embodiment, during the thin slab continuous casting and rolling process, the temperature of the thin slab after continuous casting is 1500°C, and then after the rough rolling treatment of the rough rolling unit, the temperature drops to 950°C, and the temperature rises to 1150°C after induction heating , the temperature dropped to 880°C after finishing rolling treatment by the finishing rolling unit.

[0056] After the finishing treatment of the finishing rolling unit, the plate directly enters the hot stamping deep processing, and the shearing device cuts the plate into the shape and size required by the hot stamping die, and enters the subsequent process through the conveying roller table, and is processed in the hot stamping deep processing During the process, the temperature is 880°C, and the temperature is kept for 180-250s, so that the plate forms a stable austenite structure.

[0057] After heat preservation, the high-temperature plate is transferred to t...

Embodiment 3

[0062] In this embodiment, during the thin slab continuous casting and rolling process, the temperature of the thin slab after continuous casting is 1500°C, and then after the rough rolling treatment of the rough rolling unit, the temperature drops to 970°C, and the temperature rises to 1200°C after induction heating , the temperature dropped to 910°C after finishing rolling treatment by the finishing rolling unit.

[0063] After the finishing treatment of the finishing rolling unit, the plate directly enters the hot stamping deep processing, and the shearing device cuts the plate into the shape and size required by the hot stamping die, and enters the subsequent process through the conveying roller table, and is processed in the hot stamping deep processing During the process, the temperature is 910°C, and the temperature is kept for 180-250s to make the plate form a stable austenite structure.

[0064] After heat preservation, the high-temperature plate is transferred to the...

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