使用空气热膨胀制造圆形横截面通道的方法,用于被动流量调节器
Md Emamul Kabir1, Sung-Jin Kim1
1Department of Mechanical Engineering, Konkuk University, Seoul, Republic of Korea.
Electrophoresis
|August 31, 2023
概括
我们开发了一种新的热膨胀技术,为压力调节器创建圆形微通道. 这种方法可以精确控制通道尺寸,并与矩形通道相比提高设备性能.
科学领域:
- 微流体学 微流体学
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
背景情况:
- 使用3D打印模具的多层软光刻画来制造自调压调节器的圆形微通道存在重大挑战.
- 现有的方法往往难以实现对通道几何学的精确控制,从而影响设备性能.
研究的目的:
- 引入一种新的热膨胀技术,用于制造圆形横截面微通道.
- 为了证明这种方法在制造微流体组件方面的适应性和精度.
主要方法:
- 利用热膨胀技术,在主模具的空腔中使用空气,在复制层中形成圆道.
- 多种复制品预固化时间和主模具腔体大小,以控制通道宽度 (80-300微米) 和高度 (3-57微米).
主要成果:
- 成功制造了一种具有圆形截面通道的压力调节器.
- 与具有矩形通道的设备相比,该设备在较低的门输入压力下实现了恒定的输出压力.
- 证明了卓越的性能,圆通道装置的门输入压力降低超过77%.
结论:
- 热膨胀技术为制造具有圆形横截面通道的微流体系统提供了可行和有效的方法.
- 这种方法可以精确控制通道尺寸,并提高自调节式压力调节器的性能.
- 该方法在推进集成微流体系统制造方面具有重大潜力.
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