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Design and Experiment of a Solder Paste Jetting System Driven by a Piezoelectric Stack

To compensate for the insufficiency and instability of solder paste dispensing and printing that are used in the SMT (Surface Mount Technology) production process, a noncontact solder paste jetting system driven by a piezoelectric stack based on the principle of the nozzle-needle-system is introduce...

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Detalles Bibliográficos
Autores principales: Gu, Shoudong, Jiao, Xiaoyang, Liu, Jianfang, Yang, Zhigang, Jiang, Hai, Lv, Qingqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6190031/
https://www.ncbi.nlm.nih.gov/pubmed/30404284
http://dx.doi.org/10.3390/mi7070112
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author Gu, Shoudong
Jiao, Xiaoyang
Liu, Jianfang
Yang, Zhigang
Jiang, Hai
Lv, Qingqing
author_facet Gu, Shoudong
Jiao, Xiaoyang
Liu, Jianfang
Yang, Zhigang
Jiang, Hai
Lv, Qingqing
author_sort Gu, Shoudong
collection PubMed
description To compensate for the insufficiency and instability of solder paste dispensing and printing that are used in the SMT (Surface Mount Technology) production process, a noncontact solder paste jetting system driven by a piezoelectric stack based on the principle of the nozzle-needle-system is introduced in this paper, in which a miniscule gap exists between the nozzle and needle during the jetting process. Here, the critical jet ejection velocity is discussed through theoretical analysis. The relations between ejection velocity and needle structure, needle velocity, and nozzle diameter were obtained by FLUENT software. Then, the prototype of the solder paste jetting system was fabricated, and the performance was verified by experiments. The effects of the gap between nozzle and needle, the driving voltage, and the nozzle diameter on the jetting performance and droplet diameter were obtained. Solder paste droplets 0.85 mm in diameter were produced when the gap between the nozzle and needle was adjusted to 10 μm, the driving voltage to 80 V, the nozzle diameter to 0.1 mm, and the variation of the droplet diameter was within ±3%.
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spelling pubmed-61900312018-11-01 Design and Experiment of a Solder Paste Jetting System Driven by a Piezoelectric Stack Gu, Shoudong Jiao, Xiaoyang Liu, Jianfang Yang, Zhigang Jiang, Hai Lv, Qingqing Micromachines (Basel) Article To compensate for the insufficiency and instability of solder paste dispensing and printing that are used in the SMT (Surface Mount Technology) production process, a noncontact solder paste jetting system driven by a piezoelectric stack based on the principle of the nozzle-needle-system is introduced in this paper, in which a miniscule gap exists between the nozzle and needle during the jetting process. Here, the critical jet ejection velocity is discussed through theoretical analysis. The relations between ejection velocity and needle structure, needle velocity, and nozzle diameter were obtained by FLUENT software. Then, the prototype of the solder paste jetting system was fabricated, and the performance was verified by experiments. The effects of the gap between nozzle and needle, the driving voltage, and the nozzle diameter on the jetting performance and droplet diameter were obtained. Solder paste droplets 0.85 mm in diameter were produced when the gap between the nozzle and needle was adjusted to 10 μm, the driving voltage to 80 V, the nozzle diameter to 0.1 mm, and the variation of the droplet diameter was within ±3%. MDPI 2016-06-30 /pmc/articles/PMC6190031/ /pubmed/30404284 http://dx.doi.org/10.3390/mi7070112 Text en © 2016 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gu, Shoudong
Jiao, Xiaoyang
Liu, Jianfang
Yang, Zhigang
Jiang, Hai
Lv, Qingqing
Design and Experiment of a Solder Paste Jetting System Driven by a Piezoelectric Stack
title Design and Experiment of a Solder Paste Jetting System Driven by a Piezoelectric Stack
title_full Design and Experiment of a Solder Paste Jetting System Driven by a Piezoelectric Stack
title_fullStr Design and Experiment of a Solder Paste Jetting System Driven by a Piezoelectric Stack
title_full_unstemmed Design and Experiment of a Solder Paste Jetting System Driven by a Piezoelectric Stack
title_short Design and Experiment of a Solder Paste Jetting System Driven by a Piezoelectric Stack
title_sort design and experiment of a solder paste jetting system driven by a piezoelectric stack
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6190031/
https://www.ncbi.nlm.nih.gov/pubmed/30404284
http://dx.doi.org/10.3390/mi7070112
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