Preparing method for finned inner cooling structure cooling pipe based on gel electrochemical machining

A technology of electrochemical machining and cooling structure, applied in electrochemical machining equipment, metal machining equipment, machining working medium and other directions, can solve the problems of complex structure and process, inability to carry out rib machining, poor cooling effect, etc., to control the machining reaction, Ease of control, the effect of reducing demand

Inactive Publication Date: 2015-05-20
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the "bamboo hole" processed by the electrochemical machining method has a relatively complicated structure and process, and t

Method used

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  • Preparing method for finned inner cooling structure cooling pipe based on gel electrochemical machining
  • Preparing method for finned inner cooling structure cooling pipe based on gel electrochemical machining
  • Preparing method for finned inner cooling structure cooling pipe based on gel electrochemical machining

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Embodiment 1

[0027] Embodiment 1: Before electrochemical machining is performed, the processed parts need to be pretreated to ensure that the processed parts are suitable for the processing technology and prevent the generation of defective products. The main purpose is to remove the organic impurities contained in the inner wall of the tube, and to detect whether there is a defect in the inner wall of the tube. For inert metals (ranked after H hydrogen) should be activated.

[0028] The electrolyte solution carrier of the present invention is a gel, and the method for preparing a solid-shaped gel with good conductivity is as follows: figure 1 As shown, dimethyl acetoacetamide DMAA (40% by mass), clay Clay (7%), photoinitiator DEAP (3%) and 4% sodium nitrate solution (50%) are used. A clear and transparent gel solution is obtained. The obtained solution is placed in the mold cavity 1, the entire device is placed under an ultraviolet lamp, and the polymerization reaction is carried out for 30 ...

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Abstract

The invention relates to a preparing method for a finned inner cooling structure cooling pipe based on gel electrochemical machining. The method specifically comprises the steps that preprocessing is carried out, and internal pipe flaw detecting and surface cleaning are carried out; the activating treatment should be carried out after inert metal is cleaned; a machining stage mainly comprises device platform establishing and an electrochemical machining stage, manual machining and automatic machining can be selected in the machining process in a self-service mode, and the machining efficiency is improved; a postprocessing stage mainly comprises checking and post cleaning, and purified clean water is used for performing cleaning during the experiment. The gel electrolyte comprising NaNO3 is planned to be utilized for being prepared into a rib shape, an electrode is selectively wrapped and machined to serve as a negative electrode, a machining piece serves as a positive electrode, and electrochemical machining is carried out. The preparing method is particularly suitable for machining of a finned inner cooling structure of the inner wall of a traditional pipeline, whether gel electrolyte is in contact or not can be controlled in a reaction area other structures of the pipeline cannot be affected, a finned cooling structure of the inner wall of the pipeline is achieved, and the cooling performance of a scattering channel is improved.

Description

Technical field [0001] The invention mainly relates to the technical field of surface engineering and electrochemical machining of special-shaped holes, and specifically designs a method for preparing a ribbed internal cooling structure cooling pipe based on gel electrochemical machining. Background technique [0002] With the continuous development of engine technology, the requirements for engine thrust-to-weight ratio and supercharging ratio are getting higher and higher. This requires the engine to work at the gas pressure and temperature, which makes the design and manufacture of the combustion chamber higher. Requirements. In particular, under high-temperature and high-pressure working conditions, turbine blades need to overcome such harsh conditions and achieve long-term, uninterrupted operation, which has strong technical requirements for the layout and structure of the turbine blade cooling system. Many types of cooling methods have been widely used, and the ribbed inte...

Claims

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Application Information

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IPC IPC(8): B23H3/00B23H3/08
CPCB23H3/00B23H3/08
Inventor 王昆沈奇牟玉壮
Owner TONGJI UNIV
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