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Electrolyte for micro-electrolytic machining of metal glass

A micro-electrolysis and metallic glass technology, applied in the field of electrolyte, can solve problems such as unstable processing, poor surface quality, and low processing efficiency, and achieve the effects of accelerating charge exchange rate, small environmental impact, and improving processing efficiency

Inactive Publication Date: 2017-11-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to propose an electrolyte suitable for the micro-electrolytic processing of commonly used metallic glasses (Ni, Fe, Zr base, etc.), which solves the problem of metallic glasses in general NaNO 3 Low processing efficiency, poor surface quality, and unstable processing in electrolytes such as NaCl

Method used

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  • Electrolyte for micro-electrolytic machining of metal glass
  • Electrolyte for micro-electrolytic machining of metal glass
  • Electrolyte for micro-electrolytic machining of metal glass

Examples

Experimental program
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Effect test

Embodiment 1

[0032] At room temperature, sulfuric acid and deionized water were mixed at a mass ratio of 0.1:99.9 to form a solution, the mass fraction of the sulfuric acid (5) was 98%, analytically pure, and the deionized water (7) was an industrial standard reagent. Connect the positive pole of the pulse power supply to the nickel-based metallic glass (nickel, chromium, silicon, and boron mass ratio is 72:19:7:2), and the negative pole to the electrode wire, using 5V voltage, 80ns pulse width, 3μs period, and processing speed 0.5 μm / s. The slit width of the processed graphics is 18 μm, the standard deviation of the slit width is 0.2 μm, and the processed surface is smooth, such as Figure 4 shown.

Embodiment 2

[0034] At room temperature, mix sulfuric acid and deionized water at a mass ratio of 1:4 to make a solution, connect the positive electrode of the pulse power supply to nickel-based metal glass (the mass ratio of nickel, chromium, silicon, and boron is 72:19:7:2), and the negative electrode Connect the electrode wire, use 5V voltage, 80ns pulse width, 3μs cycle, and processing speed 0.5μm / s. The slit width of the processed graphics is 25 μm, the standard deviation of the slit width is 0.3 μm, and the surface quality is good, such as Figure 5 shown.

Embodiment 3

[0036] At room temperature, mix sulfuric acid, hydrogen peroxide, and deionized water at a mass ratio of 0.1:1:98.9 to form a solution, and connect the positive electrode of the pulse power supply to nickel-based metal glass (nickel, chromium, silicon, and boron in a mass ratio of 72:19: 7: 2), the negative electrode is connected to the electrode wire, using 5V voltage, 80ns pulse width, 3μs period, and processing speed 0.5μm / s. The slit width of the processed graphics is 14 μm, the standard deviation of the slit width is 0.2 μm, and the surface quality is good, such as Figure 6 shown.

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Abstract

The invention relates to an electrolytic solution for micro-electrolytic processing of metallic glass, belonging to the field of electrochemical processing. The present invention is characterized in that the electrolyte solution for micro-electrolytic processing of metallic glass can be divided into three groups according to its raw material components and mass percentages: (1) sulfuric acid 0.1% to 20%, deionized water 80% to 99.9%; (2) Sulfuric acid 0.1%~10%, hydrogen peroxide 1%~10%, deionized water 80%~98.9%; (3) sulfuric acid 0.1%~20%, methanol 80%~99.9%. This electrolyte is suitable for electrolytic processing of commonly used metallic glasses (Ni, Fe, Zr base, etc.), has low material cost, simple preparation method, small environmental impact, good surface quality, and is beneficial to electrolytic processing precision control and processing efficiency improvement.

Description

technical field [0001] The invention relates to an electrolytic solution for micro-electrolytic processing of metallic glass, belonging to the field of electrochemical processing. Background technique [0002] Metallic Glasses, also known as Amorphous Alloys, is an alloy whose main component is metal elements (the atomic percentage of metal elements accounts for 70%-100%). The liquid is deeply supercooled to glass transition. temperature T g An amorphous alloy material formed when the structure is suddenly "frozen". The atomic arrangement of metallic glass presents long-range disorder and short-range order, and the microstructure is free from the limitation of grain size, which is more suitable for high-precision molding processing. Therefore, the preparation of high-precision, low-cost, high-performance metallic glass micro-devices will be one of the research hotspots in the field of metallic glass and micro-nano processing in the future. When processing bulk metallic g...

Claims

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Application Information

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IPC IPC(8): B23H3/08
CPCB23H3/08
Inventor 孟岭超曾永彬房晓龙朱荻
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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