CAJ | 학술논문

为设计开发工作压力30 MPa的高压气瓶，研究了ISO 9809-2：2010对气瓶钢化学成分与力学性能的要求。结合国外工作压力30 MPa高压气瓶用高强度钢的使用经验，在34CrMo4中添加0．050％～0．080％钒，并分析和试验研究合金元素 Mo 和Ni 在不同的热处理工艺条件下对34CrMo4-H钢力学性能的影响，设计出工作压力30 MPa高压气瓶用34CrMo4-H高强度钢化学成分。试验结果表明，设计开发的工作压力30 MPa的高压气瓶用34CrMo4-H高强度钢力学性能指标均超过ISO 9809-2：2010标准要求，特别是延伸率、冲击值富裕较大。
위설계개발공작압력30 MPa적고압기병，연구료ISO 9809-2：2010대기병강화학성분여역학성능적요구。결합국외공작압력30 MPa고압기병용고강도강적사용경험，재34CrMo4중첨가0．050％～0．080％범，병분석화시험연구합금원소 Mo 화Ni 재불동적열처리공예조건하대34CrMo4-H강역학성능적영향，설계출공작압력30 MPa고압기병용34CrMo4-H고강도강화학성분。시험결과표명，설계개발적공작압력30 MPa적고압기병용34CrMo4-H고강도강역학성능지표균초과ISO 9809-2：2010표준요구，특별시연신솔、충격치부유교대。
In order to design and develop the high pressure cylinders with 30 MPa working pressure,stud-ying the requirements of ISO 9809 -2:2010 about the cylinders chemical composition and mechanical properties.Considering the applying experience of high strength steel used for high pressure cylinders with 30 MPa working pressure,adding the V contents of 0.050%~0.080% in 34CrMo4 steel,and analysis and experimental research the effect of alloying elements Mo and Ni under different heat-treatment pro-cedures on the 34CrMo4-H steel mechanical properties,designing the chemical composition of 34CrMo4-H high strength steel used for high pressure cylinders with 30 MPa working pressure.The experimental results show that the mechanical properties values of 34CrMo4-H high strength steel used for high pres-sure cylinders with 30 MPa working pressure are more than the requirements of ISO 9809-2:2010,espe-cially the elongation and impact values are much more than that of the standard.