The invention discloses a method of inhibiting the remanence value of the non quenched and tempered steel rolling material, including making the iron water in turn, argon station, refining, continuous casting and rolling into the rolling process. The residual As content of the steel is less than 65ppm, and the content of the residual As is less than 65ppm, and the As content is less than 25ppm and the As content is less than 30ppm. The medium carbon non quenched and tempered steel rolling material further controls the residual magnetic value of the medium carbon non quenched and tempered steel products at the end of 20Gs. The invention can not use the degaussing machine to control the remanence value of the end of the medium carbon non quenched and tempered steel rolling products within 20Gs, which not only effectively reduces the production cost, but also can fundamentally reduce the remanence value of the non quenched and tempered rolled steel products, meet the machining performance requirements of the downstream products, and get the toughening of the non quenched and tempered rolled steel products. Sex and organization uniformity have also been improved. The invention has the possibility of industrial production and wide application prospect, and is suitable for large-scale popularization and application.
【技术实现步骤摘要】
一种抑制非调质钢轧材产品剩磁值的方法
本专利技术属于钢材制品制备领域,特别涉及一种抑制非调质钢轧材产品剩磁值的方法。
技术介绍
非调质钢是指在中碳钢基础上加入钒、钛、铌微合金化元素,通过控锻(轧)工艺,使合金元素以C、N的化合物弥散析出,促使该类钢轧材产品在热轧状态、锻造状态或正火状态下达到调质强度水平和客户所需的机械加工性能,从而省去调质处理,缩短生产周期和节约能源。非调质钢因为其高温成形后不需要进行后续的热处理,从而简化工序、节省成本而受到广泛的关注,在诸多领域内逐渐得到应用。与调质钢相比,非调质钢轧材产品在下游精密零部件加工客户处多直接用于机加工。为此,若轧材产品带有一定磁性,会导致产品表面及刀具表面常吸附大量的铁屑,且在机加工夹具作用下,对产品表面质量及其加工尺寸产生了不良影响,甚至可能直接导致其最终产品报废。为降低直接用于机加工的非调质钢轧材产品剩磁值,目前多采用消磁机设备(如专利CN102543359A,CN105070460A等)来控制轧材产品剩磁值,以满足下游产品机加工性能的要求。然而,上述设备的投入均会直接增加产品成本,同时,生产实践表明,上述设备的消磁效果存在不稳定现象。此外,消磁机的使用是一种治标手段,并不能从根本上降低非调质钢轧材产品的剩磁值,从而达到满足其机加工性能的目的。
技术实现思路
为克服以上现有技术中的不足或缺陷,本专利技术提供了一种抑制非调质钢轧材产品剩磁值的方法,无需用到消磁机设备即可将中碳非调质钢轧材产品端部的剩磁值控制在20Gs以内,既有效降低了生产成本,又能从根本上降低非调质钢轧材产品的剩磁值,满足下游产品的机加工性 ...
【技术保护点】
一种抑制非调质钢轧材产品剩磁值的方法,包括将生产原料依次进行转炉、氩站、精炼、连铸、轧制,其特征在于:所述生产原料中铁水的As含量小于25ppm,且所述转炉和氩站步骤中加入的辅料的As含量小于30ppm。
【技术特征摘要】
1.一种抑制非调质钢轧材产品剩磁值的方法,包括将生产原料依次进行转炉、氩站、精炼、连铸、轧制,其特征在于:所述生产原料中铁水的As含量小于25ppm,且所述转炉和氩站步骤中加入的辅料的As含量小于30ppm。2.根据权利要求1所述的一种抑制非调质钢轧材产品剩磁值的方法,其特征在于:所述辅料包括石灰石、碳粉、硅粉。3.根据...
【专利技术属性】
技术研发人员:孙海波,陈东初,刘金花,罗品,聂宝华,
申请(专利权)人:佛山科学技术学院,
类型:发明
国别省市:广东,44
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