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发明公开
CN103952632A 石油钻采设备泥浆泵承压件用铸钢及制备方法 失效 - 权利终止

石油钻采设备泥浆泵承压件用铸钢及制备方法
摘要：
本发明公开了一种石油钻采设备泥浆泵承压件用铸钢，按照质量百分比由以下成份组成：C0.22％-0.3％，Mn0.7％-0.9％，Cr0.8％-1％，Mo0.2％-0.3％，Si0.2％-0.4％，Re0.01％-0.015％，S≤0.02％，P≤0.025％，Cu≤0.4％，Ni≤0.4％，W≤0.1％，微量元素之和≤1％，余量为Fe。本发明还公开了该种石油钻采设备泥浆泵承压件用铸钢的制备方法。本发明的铸钢，具有强度高、抗冲压耐磨性能、冲击韧性和焊接性能良好的特性，完全满足了石油钻采设备泥浆泵主要的承压件空气包、排出管路和滤网外壳的使用要求。
摘要（英）：

The invention discloses cast steel for a pressure-bearing elements of a slime pump of petroleum drill and exploitation equipment. The cast steel comprises the following components by mass percent: 0.22-0.3% of C, 0.7-0.9% of Mn, 0.8-1% of Cr, 0.2-0.3% of Mo, 0.2-0.4% of Si, 0.01-0.015% of Re, no more than 0.02% of S, no more than 0.025% of P, no more than 0.4% of Cu, no more than 0.4% of Ni, no more than 0.1% of W, no more than 1% of microelements, and the balance of Fe. The invention also discloses a preparation method of the cast steel for the pressure-bearing elements of the slime pump of the petroleum drill and exploitation equipment. The cast steel disclosed by the invention has the characteristics of high strength, and good stamping wear resistance, impact toughness and welding property, and completely meets the use requirements of main pressure-bearing elements of the slime pump of the petroleum drill and exploitation equipment, such as an air chamber, discharge pipelines and a filter net housing.

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