| 摘要: |
| 为了解决传统装药工艺存在的推进剂/绝热层界面易脱粘、成型工序繁杂等难题，开展了基于光固化的推进剂与绝热层一体化3D打印成型工艺研究。通过对推进剂和绝热层挤出头尺寸的优化，提高了打印精细度，减少了界面缺陷。随后借助双喷头打印技术，研究了推进剂/绝热层同步成型工艺，通过对挤出流量、线宽、打印速率等调节，最终获得结构完整、异质材料结合紧密、高度统一的一体化材料。 |
| 关键词: 固体推进剂 绝热层 一体化材料 增材制造 |
| 基金项目: |
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| Addictive Manufacturing Process of Solid Propellant/Insulation Integrated Material |
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Wang Lu1, Miao Nan1, Zhao Yongchao1, Zhang Lijun1, Tang Min2, Zhang Liheng1, Miao Kai3, Hu Runzhi1
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1. Xi’an Aerospace Chemical Power Co., Ltd., Xi’an 710025;2. Aerospace Power Technology Research Insititute, Xi’an 710038;3. Xi’an Jiaotong University, Xi’an 710049
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| Abstract: |
| In order to solve the difficult problems of easy debonding between propellant and insulation layer and the complicated molding process, the 3D printing process based on light curing of propellant and insulation layer integrated material was studied. By optimizing the inner diameter of the extrusion head, the printing precision of propellant and insulation layer was improved and the interface defects between them were reduced. Subsequently, with the help of double printing equipment, the synchronous molding process of propellant/insulation layer was studied. Through adjusting the extrusion flow, line width and line speed, the integrated materials with complete structure, closely combined interface and same height were finally obtained. |
| Key words: solid propellant insulation layer integrated materials addictive manufacturing |
