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首页> 外文期刊>International Journal of Minerals,Metallurgy and Materials >Numerical simulation and experimental verification of a novel double-layered split die for high-pressure apparatus used for synthesizing superhard materials
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Numerical simulation and experimental verification of a novel double-layered split die for high-pressure apparatus used for synthesizing superhard materials

机译：用于合成超硬材料的高压装置新型双层分芯模具的数值模拟及实验验证

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摘要

Based on the principles of massive support and lateral support, a novel double-layered split die (DLSD) for high-pressure apparatus was designed to achieve a higher pressure-bearing capacity and larger sample cavity. The stress distributions of the DLSDs with different numbers of divided blocks were investigated by the finite element method and compared with the stress distributions of the conventional belt-type die (BTD). The results show that the cylinders and first-layer supporting rings of the DLSDs have dramatically smaller stresses than those of the BTD. In addition, increasing the number of divided blocks from 4 to 10 gradually increases the stress of the cylinder but has minimal influence on the stress of the supporting rings. The pressure-bearing capacities of the DLSDs with different numbers of divided blocks, especially with fewer blocks, are all remarkably higher than the pressure-bearing capacity of the BTD. The contrast experiments were also carried out to verify the simulated results. It is concluded that the pressure-bearing capacities of the DLSDs with 4 and 8 divided blocks are 1.58 and 1.45 times greater than that of the BTD. This work is rewarding for the commercial synthesis of high-quality, large-sized superhard materials using a double-layered split high-pressure die.
机译：基于大规模支撑和横向支撑的原理，设计用于高压装置的新型双层分流模具（DLSD），以实现更高的承载能力和更大的样品腔。通过有限元方法研究了具有不同数量的分开块的DLSD的应力分布，并与传统带式模具（BTD）的应力分布进行比较。结果表明，DLSD的气缸和第一层支撑环比BTD的应力大大较小。另外，将分割块的数量从4到10增加逐渐增加了汽缸的应力，但对支撑环的应力具有最小的影响。具有不同数量的分开块的DLSD的压力承载能力，特别是块的块，块较少，都比BTD的承载能力显着高。还进行了对比实验以验证模拟结果。结论是，DLSD的压力承载能力为4和8分块的含量为1.58和1.45倍，比BTD大。这项工作是使用双层分体式高压模具的高质量，大型超硬材料的商业合成的奖励。

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