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1.
3D打印工艺     
陈世华 《无线互联科技》2013,(10):163-163,195
随着现代科学技术的发展,3D打印技术已经应用到了很多的领域,比在在修复文物,工业制造方面都有着非常出色的表现。本文主要对3D打印工艺进行简单介绍(包括扫描数据,数据处理,3D打印)。  相似文献   

2.
阎德劲 《电子工艺技术》2021,42(5):271-273,306
针对传统射频电路板加工周期长、工艺流程复杂等问题,创新性地采用压电喷墨3D打印技术打印射频天线多层电路板,开展了打印材料、打印参数及打印工艺对成型效果的研究.经测试,打印的样件在外形尺寸、打印线路精度,以及驻波损耗等电性能方面均能达到设计指标要求.论证了压电喷墨3D打印技术可有效用于射频多层电路的快速制造和快速验证,为...  相似文献   

3.
张曼 《电子世界》2013,(13):7-8
本文通过分析3D打印机的原理,总结了几种典型的3D打印技术,分析其市场应用和发展方向,得出3D打印技术的发展会引领第三次工业革命的发展。  相似文献   

4.
3D打印技术作为当今的先进的制造技术,它的应用面相当的广泛,而且现正逐渐被用于一些产品的直接制造,这意味着这项技术正在普及。本文就以3D打印技术的原理,3D打印技术的发展状况,以及3D打印技术在生活中的应用这几个方面进行讨论。  相似文献   

5.
随着社会的不断发展,各类新技术的出现改变了人们的生活以及生产方式,互联网技术、新能源技术等层出不穷的新兴技术已经改变了世界。3D打印技术是当前新生产模式中最为耀眼的黑科技,颠覆了传统的生产模式。文章旨在探讨3D打印技术在设计成型工艺中的互动关系。  相似文献   

6.
3D打印技术高效应用作为机械制造生产过程的重中之重,是一项不可或缺的关键技术,直接关系到机械产品加工的高质量和高精度。因此,现代机械制造厂要积极引进应用3D打印技术,基于数字建模方法辅助下,实现对复杂结构机械零件的数学模型构建目标,采用高粘合度的粘合剂完成对实物的构造处理。本文将进一步对3D打印技术在机械制造中的应用展开分析与探讨,旨在为同行业者提供科学参考依据。  相似文献   

7.
本文通过了解3D打印技术的特点及优势,探讨3D打印技术在环境艺术设计中的应用,提出了在环境艺术设计中,应用3D打印技术几点建议。希望能为室内环境艺术设计工作提供一定的参考和借鉴。  相似文献   

8.
近年来, 随着通信用户量的迅速增加和通信设备市场的快速发展, 数据速率高于10 Gbit/s的高速通信系统要求多种功能集成在天线上, 天线的制造要求趋于高精度、低成本和微型化. 3D打印或增材制造(additive manufacturing, AM)是一种直接从数字模型到零件制造的新兴产业技术, 可在短时间内生产出高精度和复杂的天线零件, 该技术已经成为了当前天线设计的研究热点.制造天线的AM技术主要有粉床熔合、材料挤压和材料喷射.文章首先简要介绍3D金属打印技术的基本原理、操作流程和分类, 接着重点分析几种3D金属打印天线技术的研究成果, 然后浅析3D金属打印天线技术的发展趋势, 最后对3D金属打印天线技术做了总结.  相似文献   

9.
3D打印从诞生到真正得以应用经历了十来年,而随着打印材料的不断丰富、直接生成成品的理念的形成及实现,为3D打印开创了非常广阔的前景。文章旨在通过它的原理介绍这一前沿技术,结合应用表述它无限的应用前景,并用一个完整的使用实例阐明它在制作模型中的应用过程及效果。  相似文献   

10.
知识产权视角下的3D打印技术   总被引:1,自引:0,他引:1  
3D打印技术的出现,改变了长久以来人们制造产品的模式,对各行各业都带来了或多或少的冲击.这种冲击不仅仅体现在产品的生产方面,同时也体现在对传统知识产权的挑战方面.首先从专利层面对3D打印技术进行了梳理,分析了国内相关专利的分布情况;然后着眼于3D打印技术与知识产权制度的冲突问题,探讨了如何在保护知识产权的前提下发展3D打印技术.  相似文献   

11.
袁定芬  白梅 《应用激光》2013,33(1):97-98
目的:观察540 nm强脉冲光治疗面部毛细血管扩张症的临床效果。方法:对46例面部毛细血管扩张症患者采用540 nm强脉冲光治疗,根据不同临床情况选择不同能量。结果:1、2、3、4、5次的治愈率分别是25.00%、38.46%、55.00%、71.43%、100.00%,有效率分别是50.00%、84.62%、90.00%、85.71%、100%。治疗次数越多,有效率越高。结论:540 nm强脉冲光治疗面部毛细血管扩张症安全有效。  相似文献   

12.
    
Inkjet‐printed gold nanoparticle pillars are investigated as a high‐performance alternative to conventional flip‐chip interconnects for electronic packages, with significant advantages in terms of mechanical/chemical robustness and conductivity. The process parameters critical to pillar fabrication are described and highly uniform pillar arrays are demonstrated. More generally, this work underscores the impact of sintering on the electrical, mechanical, structural, and compositional properties of three‐dimensional nanoparticle‐based structures. Using heat treatments as low as 200 °C, electrical and mechanical performance that outcompetes conventional lead‐tin eutectic solder materials is achieved. With sintering conditions reaching 300 °C it is possible to achieve pillars with properties comparable to bulk gold. This work demonstrates the immense potential for both inkjet printing and metal nanoparticles to become a viable and cost‐saving alternative to both conventional electronic packaging processes and application‐specific integration schemes.  相似文献   

13.
This paper proves a new approach for rapid prototyping of radio antennas through 3D printing and chemical metallization. For this purpose, a standard metal pyramidal horn prototype is compared with its 3D printed replica. Three different 3D polymer printers are tested. The printed samples are assessed nondestructively by an X-ray Industrial Computed Tomography (CT) scanner, and then metalized via chemical deposition and chemical-electrochemical deposition. Copper with two different layer thicknesses and nickel materials are deployed and verified as a metallization opportunity. Again the CT scanner, X-ray fluorescent analysis and nanoindentation technique were used to perform the metallization quality estimation. As a result, a qualitative polymer prototype was produced having weight of 13 g – ten times lighter than the original. The prototype was successfully metalized and was able to be soldered. The radio-measurement comparison with the metal original for frequencies 14–18 GHz showed no significant differences. Finally, a simple dynamometric test confirmed the bonding between the metal and the polymer. To the best of our knowledge this is the first known comprehensive analysis of the possibility to print 3D lightweight wideband polymer antenna prototypes with a stable chemical metallization and radio properties very close to the original at 14–18 GHz.  相似文献   

14.
    
Currently, the increasing needs of conductive ionogels with intricate shapes and high processability by individual requirements of next-generation flexible electronics constitute significant challenges. Here, the design of highly processable ionogels is reported with mechanical robustness by self-assembly of a common triblock copolymer into a precursor in functional mixed ionic liquids (ILs) containing conductivity-enhancing and polymerizable strength-enhancing components. The subsequent in situ polymerization of the precursor forms physical-co-chemical cross-linked networks, in which the entanglement between physical and chemical cross-linked networks and microphase separation give rise to mechanical robustness of as-fabricated ionogel. The viscosity of the self-assembled precursor can be rationally tuned, which makes the fabrication process compatible with diverse technologies including inkjet printing, spray coating, and 3D printing. By virtue of highly processable capability of the designed ionogels, an auxetic-structured ionogel can be easily generated using 3D printing, which exhibits greatly improved sensitivity and thus is able to monitor tiny deformations. This study that relies on designing functional mixed ILs as the dispersion phase rather than focusing on synthesizing new-type polymers establishes a new route for versatile and programmable fabrication of high-performance ionogels for broader applications.  相似文献   

15.
为解决太赫兹频段紧凑型多波束天线结构复杂且制备难度大的问题,提出两种工作于355 GHz频段的太赫兹龙勃透镜天线和部分麦克斯韦鱼眼(PMFE)透镜天线。两种天线均采用周期性金属钉床结构实现梯度折射率表面波透镜,最小特征结构尺寸达60μm。为调控天线非扫描面波束辐射方向,在两种表面波透镜边缘均加载环形波纹结构;此外,将馈电波导阵列与表面波透镜一体设计,保证天线结构一体性,并采用高精确度(10μm)3D打印技术一体加工,结合磁控溅射技术完成两种天线表面金属化,实现太赫兹表面波透镜天线低成本可靠制备。仿真结果表明,龙勃透镜天线和PMFE透镜天线在350~360 GHz频段范围内,分别实现±60°和±72°的波束扫描能力。对龙勃透镜天线进行样机加工制造与测试验证,在350~360 GHz频带范围内,表现出良好的阻抗匹配特性和多波束特性:多波束扫描范围为±60°,增益高于16 dBi,波束扫描损耗优于1.2 dB。测试结果与仿真设计结果的吻合性验证了该方案的可行性,为太赫兹多波束天线的设计实现提供了一种崭新的设计思路和技术选择。  相似文献   

16.
    
Patterned deposition of solution‐processed materials utilizing printing technologies is a key enabler for the realization of low‐cost and large‐area electronics. While there have been several demonstrations of printed transistors, reports of printed MEMS have been generally sparse due to the difficulty in realizing robust printed suspended structures. Here, the first demonstration of fully inkjet‐printed three‐terminal microelectromechanical (MEM) reed relays offering excellent immunity to the mechanical stress variation often observed in printed cantilevers is reported. A novel MEM reed relay architecture is revealed where the upward curling of the printed reed due to the stress gradient in the film is restricted by a printed blocking reed, thus delivering immunity to stress variations. The printed reed relays show hyper‐abrupt switching with an on‐state resistance of only ≈15 Ω, immeasurable off‐state leakage, a switching delay of 32 μs, and stable operation over 105 cycles. An analytical model of the reed relay turn‐off voltage is developed, which is validated against the experimental results with varying reed relay geometrical parameters. The fully printed processing capability of the demonstrated reed relays in tandem with their stress tolerant nature and excellent device performance substantiates their promise as a new switching device for low‐cost and large‐area electronics.  相似文献   

17.
论述了一种利用单片机技术实现强光光子嫩肤机控制系统的研制结果。该系统包括由高分辨率触摸屏及彩色液晶显示器构成的人机交互界面,多脉冲强光电源的控制系统以及工作状态的监测和报警系统。研制结果显示:在强光光谱,脉冲形式,出光能量等方面达到了预期目标。经反复测试,该光子嫩肤机在整机性能的稳定性、可靠性以及光头出光能量的均匀性、稳定性方面可以达到光子嫩肤治疗的要求,满足医疗美容的使用要求。  相似文献   

18.
李岩川  许军   《电子器件》2008,31(1):225-228,232
为解释固态基板上Ag纳米粒子液滴干燥过程中溶质的成膜机理并简化计算模拟过程,建立了一个二维理论模型,然后使用该模型,首先分析并模拟了稳定液滴的干燥成膜过程以及膜厚剖面,进而又分别模拟了较低成膜温度下喷打液滴以及较高成膜温度下液滴干燥后的成膜形貌.上述模拟结果与实验测得的膜厚剖面基本相符.理论分析和模拟结果表明,通过降低溶剂的蒸发速率,例如采用较低的成膜温度或者采用较高沸点的溶剂,可以有效的抑止\"咖啡环\"的产生.该研究对于喷墨打印成膜过程中成膜形貌的理解与控制具有重要意义.  相似文献   

19.
研制了一种新型的基于三维正交织物的纺织天线。该天线采用串馈四元阵形式,具有柔软性、易共形的性能,除了具有天线的功能,还具有纺织结构的功能。通过实验测定了天线的带宽、增益等指标。实验证明,该天线带宽为1.43~1.54 GHz,最大增益为7 dB,其尺寸为428 mm×155 mm。实验验证了新型天线的实用性。  相似文献   

20.
本文综述了近年来国内外使用激光与强脉冲光治疗皮肤血管性病变鲜红斑痣的现状及研究进展,并对其治疗方法与并发症进行了分析,为提高治愈率和减少副作用提供了临床治疗依据。  相似文献   

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