The invention discloses a wear-resistant steel plate for mining machinery, which is composed of the following components in percentage of weight: C:0.8_1.0%, Cu:0.8_1.2%, Cu:0.8_0.8_1.2%, Si:0.78209 0.9%, P <0.9%, P <0.02%, S <0 0 0 0 0.005%, La:0.078209 0.099 0.099%, V:0.38209 0.0.5%, V:0.38209 0.5%, Ti 0.38209 0.5%, 0.5%, N:0.03_0.03%, Al:0.03 8209 0.04%, Al:0.03 and unavoidable impurities Ti C, vanadium carbide, vanadium trinitride, titanium boride and aluminium nitride compounds are formed between V, Ti, N, Al, B and C in the wear-resistant steel plate. These compounds are dispersed and distributed in the steel matrix. The above alloy elements in the steel of the invention complement each other and have synergistic effect. The hardness of the wear-resistant steel of the invention is improved, and its Brinell hardness value can reach HB580 620, which can ensure good wear resistance. Its tensile strength is not less than 1200 MPa and its elongation is more than 8%, which shows that it has good strength and toughness.
【技术实现步骤摘要】
一种矿山机械用耐磨钢板
本专利技术涉及钢铁冶金
,特别涉及一种矿山机械用耐磨钢板。
技术介绍
耐磨钢板被广泛应用于工作条件特别恶劣,要求高强度、高耐磨性能等机械产品上。如各种矿山机械、抓斗、堆取料机、输料弯曲结构等。因此,该种耐磨钢板要求有较高的硬度。目前的国内的耐磨钢一般合金含量较高,虽然能满足硬度的要求,但塑韧性相对较差,在一定程度上影响了其在不同机械领域上的应用。
技术实现思路
针对现有技术的不足,本专利技术的目的之一在于提供一种矿山机械用耐磨钢板,该钢板具有良好的强韧性,较高的硬度,耐磨性能优异,且成本低。为实现上述目的,本专利技术采用如下的技术方案:一种矿山机械用耐磨钢板,所述耐磨钢板以(重量)百分比计由下列组份组成:C:0.8-1.0%,Cu:0.8-1.2%,Si:0.7-0.9%,P≤0.02%,S≤0.005%,La:0.07-0.09%,V:0.3-0.5%,Ti:0.3-0.5%,N:0.03-0.04%,Al:0.03-0.08%,其余为铁Fe和不可避免的杂质,所述耐磨钢板中V、Ti、N、Al、B之间以及与C之间形成碳化钛、碳化钒、钒三氮、硼化钛和氮化铝化合物,这些化合物在钢基体中弥散分布。进一步的,所述耐磨合金钢以(重量)百分比计由下列组份组成:所述耐磨钢板以(重量)百分比计由下列组份组成:C:0.8%,Cu:1%,Si:0.7%,P≤0.02%,S≤0.005%,La:0.05%,V:0.25%,Ti:0.3%,N:0.03%,Al:0.04%,其余为铁Fe和不可避免的杂质。进一步的,所述耐磨钢板以(重量)百分比计由下列组份组 ...
【技术保护点】
1.一种矿山机械用耐磨钢板,其特征在于,所述耐磨钢板以(重量)百分比计由下列组份组成:C:0.8‑1.0%,Cu:0.8‑1.2%,Si:0.7‑0.9%,P≤0.02%,S≤0.005%,La:0.07‑0.09%,V:0.3‑0.5%,Ti:0.3‑0.5%,N:0.03‑0.04%,Al:0.03‑0.08%,其余为铁Fe和不可避免的杂质,所述耐磨钢板中V、Ti、N、Al、B之间以及与C之间形成碳化钛、碳化钒、钒三氮、硼化钛和氮化铝化合物,这些化合物在钢基体中弥散分布。
【技术特征摘要】
1.一种矿山机械用耐磨钢板,其特征在于,所述耐磨钢板以(重量)百分比计由下列组份组成:C:0.8-1.0%,Cu:0.8-1.2%,Si:0.7-0.9%,P≤0.02%,S≤0.005%,La:0.07-0.09%,V:0.3-0.5%,Ti:0.3-0.5%,N:0.03-0.04%,Al:0.03-0.08%,其余为铁Fe和不可避免的杂质,所述耐磨钢板中V、Ti、N、Al、B之间以及与C之间形成碳化钛、碳化钒、钒三氮、硼化钛和氮化铝化合物,这些化合物在钢基体中弥散分布。2.如权利要求1所述的一种矿山机械用耐磨钢板,其特征在于...
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