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首页> 外文会议>ASME international manufacturing science and engineering conference 2011 >FABRICATION OF SUPPORTS FOR SOLID OXIDE FUEL CELLS BY POWDER INJECTION MOLDING
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FABRICATION OF SUPPORTS FOR SOLID OXIDE FUEL CELLS BY POWDER INJECTION MOLDING

机译：粉末注射成型法制备固体氧化物燃料电池支持物

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In this paper the processing steps for producing SOFC (Solid Oxide Fuel Cell) supports by means of PIM (Powder Injection Molding) technique were investigated. Injection molding parameters in this study were divided into pressure-related (injection pressure and packing pressure), temperature-related (nozzle temperature and mold temperature), and time-related (injection rate and holding time) parameters. Keeping the other parameters (pressure-related, temperature-related and time-related parameters) constant at an optimized value, the effects of each of the molding parameters above were investigated. The results show that the short shot, warpage, weld line and void are the most common defects in molded parts. According to the results the short shot could be seen in low values of injection pressure, injection rate, nozzle and mold temperature. Also, warpage could be seen in high values of mold temperature, injection and packing pressure. Poor weld line was another defect that could be seen in low values of injection pressure, injection rate, nozzle and mold temperature. Also the void was one of the most common defects that could be seen in high values of injection rate and nozzle temperatures. Finally, using optimized molding parameters, the molded parts underwent debinding and sintering processes. Based on the results of thermal shock tests and the porosity measurements of the sintered parts, these molded parts possessed relatively desirable characteristics.
机译：本文研究了通过PIM（粉末注射成型）技术生产SOFC（固体氧化物燃料电池）载体的工艺步骤。本研究中的注射成型参数分为压力相关（注射压力和填充压力），温度相关（喷嘴温度和模具温度）和时间相关（注射速率和保持时间）参数。将其他参数（与压力有关，与温度有关和与时间有关的参数）保持在最佳值不变，研究了上述每个成型参数的影响。结果表明，短射，翘曲，焊接线和空隙是模制零件中最常见的缺陷。根据结果​​，可以在较低的注射压力，注射速率，喷嘴和模具温度下看到短射。同样，在较高的模具温度，注射压力和保压压力下也会出现翘曲。焊接线不良是另一个缺陷，可以从较低的注射压力，注射速率，喷嘴和模具温度看出。而且，空隙是最常见的缺陷之一，可以在高喷射速率和喷嘴温度下看到。最后，使用优化的成型参数，对成型零件进行脱脂和烧结工艺。根据热冲击试验的结果和烧结零件的孔隙率测量结果，这些模制零件具有相对理想的特性。

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