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一种冲杆式开关蜡模成型系统 被引量:1
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作者 赵立飞 马明 张鸿海 《中国科技论文》 CAS 北大核心 2016年第22期2553-2556,2567,共5页
提出了基于冲杆式开关和气动式挤出沉积成型技术的快速成型蜡模系统。以精密铸造用的石蜡为实验原料,运用控制变量法研究了喷嘴直径、喷嘴温度、基板的运动速度、系统背压等关键工艺参数对沉积成型过程及最终成型质量的影响规律;运用Ф0... 提出了基于冲杆式开关和气动式挤出沉积成型技术的快速成型蜡模系统。以精密铸造用的石蜡为实验原料,运用控制变量法研究了喷嘴直径、喷嘴温度、基板的运动速度、系统背压等关键工艺参数对沉积成型过程及最终成型质量的影响规律;运用Ф0.3mm孔径的喷嘴进行了线性图案沉积和简单实体堆积实验研究。结果表明:冲杆式和气动相结合的挤出沉积成型蜡模系统挤出成型过程稳定、可控、成型能力较强,可用于成型工业上熔模铸造用的蜡模。 展开更多
关键词 模具制造 蜡模 挤出沉积成型 冲杆式 工艺参数
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Design and research on pneumatic vane motor roofbolter 被引量:1
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作者 杜长龙 杨善国 杨秀 《Journal of Coal Science & Engineering(China)》 2003年第2期109-112,共4页
On the basis of analysis of the present roofbolter’s structures, the pneumatic vane motor roofbolter was proposed and researched. Structure principle of MFT 80Y type pneumatic vane motor roofbolter was expounded, a n... On the basis of analysis of the present roofbolter’s structures, the pneumatic vane motor roofbolter was proposed and researched. Structure principle of MFT 80Y type pneumatic vane motor roofbolter was expounded, a new project of the rotary shearing mechanism with integrating pneumatic vane motor with epicyclic reduction gear unit was carried out, the mathematical model for optimum design of the rotary shearing mechanism was set up, and the optimum design for the rotary shearing mechanism was made by MATLAB Optimization Toolbox. Finally, performance of MFT 80 type pneumatic vane motor roofbolter made with optimum method and the on site experiment were introduced. 展开更多
关键词 ROOFBOLTER pneumatic motor optimum design
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