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Preparation method of amorphous alloy mold and application thereof in micro-flow groove forming

A technology of amorphous alloy and micro-fluid, which is applied in the field of hot-press forming of amorphous alloy mould, to achieve batch precision replication, save production cost, good surface quality and dimensional accuracy

Inactive Publication Date: 2011-01-19
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

However, there are still few reports on the technology of hot-pressing polymer microfluidic channels using amorphous alloy molds. How to achieve rapid and mass production is also an important key to this technology.

Method used

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  • Preparation method of amorphous alloy mold and application thereof in micro-flow groove forming
  • Preparation method of amorphous alloy mold and application thereof in micro-flow groove forming
  • Preparation method of amorphous alloy mold and application thereof in micro-flow groove forming

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] A preparation method of an amorphous alloy mould, comprising the steps of:

[0041] (1) Silicon mold preparation

[0042] The designed micro-channel pattern is etched on the silicon chip with deep reactive ion etching technology to etch a micro-channel female master mold with concave channels. A silicon mold containing a single microfluidic female master mold with a length and width of 5 mm was cut out, washed with acetone and dried. In this example, a silicon mold containing a single microfluidic female master mold is cut out, and a silicon mold containing multiple microfluidic female female molds can also be cut out.

[0043] (2) Preparation of amorphous alloy samples

[0044] Select a Zr-Be based amorphous alloy system with high brittleness value, wide supercooled liquid region, low glass transition temperature, and high temperatur...

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Abstract

The invention discloses a preparation method of an amorphous alloy mold. The amorphous alloy mold prepared by the method is used for thermoforming a micro-flow groove. The method is characterized by comprising the following steps of: (1) preparing a silicon mold; (2) preparing an amorphous alloy sample; (3) sequentially placing a spacer, the silicon mold, the amorphous alloy sample and a press head spacer in a clamp body; (4) precisely replicating and forming the amorphous alloy mold; and (5) cooling and de-molding. The invention also discloses a method for forming a high polymer micro-flow groove by utilizing the amorphous alloy mold prepared by the method. The method comprises the following steps of: (1) preparing a high polymer sample; (2) thermoforming a high polymer micro-flow groove; and (3) cooling and de-molding. In the invention, the quick and batch production of the amorphous alloy mold and the high polymer micro-flow groove can be realized through adjusting the sizes of the silicon mold and the clamp body, thereby enhancing processing efficiency, shortening manufacturing cycle and reducing manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of hot-press forming of amorphous alloy moulds, and relates to a preparation method of amorphous alloy moulds, and high polymer microfluidic grooves formed by hot-pressing the moulds. Background technique [0002] Microfluidic chips have the advantages of fast, high efficiency, and low consumption, and have broad application prospects in fields such as gene analysis, disease diagnosis, and drug screening. In the development of microfluidic chips, the selection of chip materials should be considered first. So far, there are five kinds of materials used to make microfluidic chips: single crystal silicon, glass, plastic, ceramics, and silicone rubber. Among them, plastic (high polymer) has the advantages of cheap price, relatively simple manufacturing process, good processing repeatability, and good biocompatibility, and has become the main material of microfluidic chips. The processing technologies for polym...

Claims

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Application Information

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IPC IPC(8): B29C51/30
Inventor 柳林李宁何建军谌祺
Owner HUAZHONG UNIV OF SCI & TECH
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