Method for processing integrated stainless steel micro-fluid reactors

A technology of microfluidic reactors and processing methods, applied in chemical instruments and methods, metal processing equipment, manufacturing tools, etc., can solve problems such as high cost and difficult processing, and achieve good air tightness, low raw material cost, and small investment Effect

Inactive Publication Date: 2009-10-14
NANJING UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to invent a processing method for an integrated stainless steel microfluidic reactor using stainless steel as the base material of the reactor for the problems of difficult processing and high cost in the existing microchemical process machinery

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  • Method for processing integrated stainless steel micro-fluid reactors

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] like figure 1 shown.

[0020] A processing method for an integrated stainless steel microfluidic reactor mainly includes the following process steps: electric discharge machining of microfluidic channels and holes, cleaning and grinding, vacuum diffusion welding packaging, and connection of inlet and outlet interfaces.

[0021] The details are as follows:

[0022] 1. First select the stainless steel plate 3 whose plate thickness matches the depth of the micro-channel or the hole as the base material, and use the EDM method and the ordinary machine tool processing method to process the required reaction micro-channel and / or Holes, to complete the EDM of stainless steel micro-flow channels and holes; the specific steps are: first draw the DWG AUTOCAD file drawings according to the design requirements, and convert them into DXF files that can be r...

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Abstract

The invention provides a method for processing integrated stainless steel micro-fluid reactors, which is characterized in that the drawing is designed in advance and output as a DXF format in AUTOCAD according to the requirements, and the correction of drawing lines, the enlargement and the reduction are performed after the drawing in the DXF format is accepted by an electro discharge machining device. The method comprises the following steps: selecting the thickness of different plates as the characteristic scales of the micro-fluid reactors according to the requirements; processing all the micro-fluid channels and further cutting the plates to the overall size of the micro-fluid reactors; then, processing all the holes; grinding all the surfaces to be welded into mirror surfaces; cleaning, stacking in sequence, vacuum-diffusion welding and packaging; and finally welding entrance and exit nozzles to finish all the assembly. The invention has the advantages of high air tightness, high-temperature and low-temperature resistance, common material selection, easy assembly and feasible mass production, and reduces the production cost.

Description

technical field [0001] The invention relates to a manufacturing method of a microfluidic reactor, in particular to a manufacturing method of a stainless steel microfluidic reactor, in particular to a processing method for an integrated stainless steel microfluidic reactor. Background technique [0002] Since the 1990s, an important trend in the development of natural science and engineering technology has been to propose a new design engineering concept, that is, the miniaturization of equipment. Because the conversion rate and selectivity of the reaction at the microscale are significantly improved, and the heat transfer coefficient and mass transfer performance are greatly enhanced, microchemical equipment and processes are recognized as one of the most important directions for the development of chemical engineering. The advantages of simple miniature chemical equipment, no amplification effect, easy control of operating conditions and inherent safety have caused some res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/00B23K20/14
Inventor 张锴涂善东巩建鸣
Owner NANJING UNIV OF TECH
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