| 316L/POM复合材料熔融沉积成型件的催化脱脂工艺研究 |
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| 引用本文： | 刘斌,叶红叶,王玉香,张涛.316L/POM复合材料熔融沉积成型件的催化脱脂工艺研究[J].粉末冶金技术,2022,40(6):510-515. |
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| 作者姓名： | 刘斌 叶红叶 王玉香 张涛 |
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| 作者单位： | 1.华南理工大学聚合物新型成型装备国家工程研究中心, 广州 510641 |
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| 基金项目： | 广东省省级科技计划资助项目（2017B090913003） |
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| 摘 要： | 采用熔融沉积成型制备了316L/POM复合材料成型坯，研究了脱脂温度、催化剂流量、脱脂时间、试样尺寸和填充率等参数对熔融沉积成型坯脱脂率的影响。结果表明:随着脱脂温度的增大，脱脂率升高，但在130～140 ℃时有所下降。随着催化剂流量和脱脂时间的增大，脱脂率升高。随着试样厚度和填充率的增大，脱脂率降低，但试样的平面尺寸对脱脂率的影响不大。通过对熔融沉积成型坯的计算机断层扫描和扫描电子显微镜观察发现，在熔融沉积成型打印时，熔融丝料间隙形成的气体交换通道网可以加快脱脂速率。
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| 关 键 词： | 熔融沉积成型 催化脱脂 脱脂率 316L/POM复合材料 3D打印 |
| 收稿时间： | 2021-04-09 |
Research on catalyst debinding process of 316L/POM composite parts fabricated by fused deposition modeling |
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| Affiliation: | 1.National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510641, China2.Print-Rite Unicorn Image Products Company Limited of Zhuhai, Zhuhai 519060, China |
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| Abstract: | 316L/POM composite parts were prepared by fused deposition modeling (FDM). The effects of debinding temperature, catalyst flow rate, debinding time, sample size, and filling rate on the debinding rate of FDM parts were studied. The results show that, the debinding rate increases with the increase of debinding temperature but decreases at 130~140 ℃. The increases of the catalyst flow rate and debinding time aggrandize the bebinding rate. The debinding rate decreases with the increase of the sample thickness and filling rate, but the plane size of the samples has little impact on the debinding rate. The computed tomography (CT) and scanning electron microscopy (SEM) of FDM parts reveal that the gas exchange channel network formed in the large fuse gaps during FDM printing can accelerate the debinding rate. |
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