Descripción general de la producción de acero laminado en frío:
Las bobinas y láminas de acero templado y templado laminadas en frío son productos de acero especializados que se han sometido a una serie de procesos de fabricación precisos para lograr las propiedades mecánicas deseadas.. Estos materiales se utilizan comúnmente en aplicaciones donde la alta resistencia, excelente resistencia al desgaste, y la dureza controlada son factores críticos, such as in the production of cutting tools, muelles, automotive components, and various industrial machinery parts.
Proceso de fabricación:
1.Laminado en frío:The initial process involves cold rolling the steel strip or sheet at room temperature or below its recrystallization temperature. This reduces the thickness of the material and enhances its surface finish while improving its dimensional accuracy and mechanical properties, such as tensile strength and yield strength.
2. Endurecimiento (Temple): Después del laminado en frío, the steel is heat-treated by heating it to an austenitizing temperature, which allows the carbon and other alloying elements to be uniformly distributed throughout the matrix structure. Once the desired temperature is reached, the material is rapidly cooled (apagado) to form a hard martensitic microstructure, resulting in increased hardness but also brittleness.
3. Templado:To balance out the hardness with ductility, the quenched steel is then reheated to a specific temperature below the original hardening temperature. This tempering process helps relieve internal stresses and modifies the microstructure to achieve the right combination of hardness, tenacidad, and elasticity for the intended application.
Characteristics of Cold Rolled Hardened & Tempered Steel Strips & Hojas:
Alta resistencia: Due to the careful control of the hardening and tempering process, these steel products exhibit significantly higher strength than their non-treated counterparts.
Resistencia al desgaste: The hardened and tempered condition provides a tough, durable surface that resists abrasion and deformation over time, making it ideal for applications where friction and wear are concerns.
Dimensional Stability: Cold rolling ensures tight tolerances and flatness, which is crucial in applications requiring close fitting or machining.
Workability: Despite being hardened and tempered, these steels often retain some degree of workability, allowing for further shaping and forming operations if necessary.
Aplicaciones:
Cutting tools: knives, tijeras, cuchillos de yeso, hojas de sierra circulares, sierras para madera, sierras para alimentos, band saws, sierras para carne, etc..
Fabricación de primavera: Ideal for coil springs, rolling door fittings, leaf springs and torsion bars as they can withstand repeated bending without failure.
Auto parts: engine valve springs, transmission gears, suspension components, discos de embrague, seat belt inserts, gaskets and automotive washers, etc..
Architectural Hardware: Hinges, door locks and door closers benefit from enhanced durability.
Electrical appliances and furniture parts: muelles, resortes de reloj, shoe irons, industrial knives, fasteners and load-bearing parts, etc..
| Laminado en frío endurecido&tempered steel strip/ coil/ sheet. | |||||
| Condición de entrega (Steel-sheet/strip/coil) | Grand based on DIN standard | Prime steel strip/coil/shet heat-treated of commonly specifications, dureza, process method | |||
| Laminado en frío | Curtido&Templado | ||||
| 21Hrc<dureza<29Hrc | 29Hrc<dureza<55Hrc | ||||
| espesor | ancho | espesor | ancho | ||
| Acero de alto carbono | CK45,K50,CK55, CK60, CK67, CK70,CK75, etc.. | 0.08-4.0milímetros | 8-320milímetros | 0.08-3.0milímetros | 8-300milímetros |
| Alloy steel | 50CrV4,C75Cr1,51CrV4, 60Si2Mn, etc.. | 0.08-4.0milímetros | 8-320milímetros | 0.08-3.0milímetros | 8-300milímetros |
| Stainless spring steel | 420J2 etc. | 0.08-4.0milímetros | 8-1200milímetros | 0.08-3.0milímetros | 8-300milímetros |
| Proceso de borde | Abertura / redondo / cuadrado. | ||||
| Tolerancia | Thickness +/-0.03mm max; width +/-0.05mm max | ||||
| Superficie | Pulido (azul, amarillo, blanco, gray-blue, negro, brillante) o Naturaleza, etc. | ||||
| Physical property | Resistencia a la tracción: 450-1850N/mm2 | ||||
| Embalaje | Each bundle firmed with high tensile steel packing straps, then wrapped with water-resistant paper for standard seaworthy packing | ||||
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