The invention belongs to the technical field of steel smelting, and particularly relates to steel, a preparation method thereof and application of the steel in preparation of a crash box. The steel provided by the invention is used for preparing the collision box and comprises the following components in percentage by weight: 0.16%-0.20% of C, 0.20%-0.40% of Si, 1.30%-1.50% of Mn, less than or equal to 0.015% of P, less than or equal to 0.010% of S, 0.10%-0.20% of Cr, 0.03%-0.05% of V and the balance of Fe and inevitable impurities. The steel billet is subjected to optimized component design, it is guaranteed that the steel billet has high strength and sufficient toughness, and the direct use target of a user is met.
本发明属于钢铁冶炼技术领域,具体涉及一种钢及其制备方法和在制备碰撞盒中的应用。本发明提供的钢用于制备碰撞盒,按重量百分比计,包括:C:0.16%~0.20%,Si:0.20%~0.40%,Mn:1.30%~1.50%,P≤0.015%,S:≤0.010%,Cr:0.10%~0.20%,V:0.03%~0.05%,其余为Fe与不可避免的杂质。本发明通过对钢坯进行优化成分设计,保证其具有高的强度和足够的韧性,满足用户直接使用的目标。
Steel, preparation method thereof and application of steel in preparation of crash box
钢及其制备方法和在制备碰撞盒中的应用
2023-12-15
Patent
Elektronische Ressource
Chinesisch
IPC: | C22C Legierungen , ALLOYS / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / C21C Weiterverarbeiten von Roheisen, z.B. Feinen, Herstellen von Schweißeisen oder Stahl , PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL |
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