| 1. | Ultrasonic examination for cladding 堆焊层超声波探伤方法 |
| 2. | The study of surface cracks ream on overlay of hydrogenation reactor 热壁加氢反应器堆焊层表面裂纹扩展初析 |
| 3. | Failure analysis and preventing measure for worm ' s clad in expanding drier 螺旋叶堆焊层的失效分析及改进措施 |
| 4. | Effect of different aging treatment on the hardness and wear - resistance of hardfacing layers 不同时效处理对堆焊层的硬度和耐磨性影响 |
| 5. | Effect of yttrium oxide on microstructure and properties of the alloy cast iron overlaying welding 3对合金铸铁焊条堆焊层组织与性能的影响 |
| 6. | Fabrication and inspection method for high pressure urea equipment ultrasonic examination on the strip overlay welds of stainless steel 尿素高压设备制造检验方法.不锈钢带极自动堆焊层的超声检测 |
| 7. | The effect of heat treatment on structure and hardness of high alloy iron - based hardfacing layer metal was studied and the result obtained is of guiding significance for it ' s application 摘要研究了热处理对高合金铁基堆焊层组织和硬度的影响,所得结果对其应用有一定的指导意义。 |
| 8. | By means of analysising the chemic component , optical structure and the sem and measuring the microhardness , the samples with the crack in the hardface layer of continuous caster roller were studied 摘要采用化学成分、金相组织和扫描电镜断口分析及显微硬度测定等手段对连铸辊表面堆焊层开裂部位进行了取样分析。 |
| 9. | The results show that , when the hardfacing process is not appropriate , the thick martensite structure with high carbon content will form in the overheat region of heat affected zone , and the high residual stress occurred , which are the primary causes resulting in crack 结果表明,堆焊工艺制定不当,热影响区的过热区形成高碳粗大马氏体组织及保留了较大的焊接应力,是导致堆焊层开裂的主要原因。 |