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Preparation method of micro-nano holes in surface of nickel-containing iron-chromium alloy

A nickel-iron-chromium alloy and micro-nano-pore technology, which is applied in the direction of anodic oxidation, can solve the problems of unfavorable metal-resin composite materials, and achieve the effect of easy operation, low cost and simple processing method

Pending Publication Date: 2022-02-11
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The general chemical etching method includes acid etching or alkali etching. Through chemical reaction with the metal surface, different shapes are formed on the metal surface. Generally, hydrochloric acid, sulfuric acid, phosphoric acid or sodium hydroxide, potassium hydroxide are used to treat the metal surface. , usually different bosses or pits are etched on the metal surface, which is not conducive to the preparation of metal-resin composites by nano-injection molding or as a template to prepare nano-array one-dimensional nanomaterials

Method used

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  • Preparation method of micro-nano holes in surface of nickel-containing iron-chromium alloy
  • Preparation method of micro-nano holes in surface of nickel-containing iron-chromium alloy
  • Preparation method of micro-nano holes in surface of nickel-containing iron-chromium alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Method for preparing a micro-nanophoe having a nickel-chromium alloy surface, such as figure 1 As shown, including the following steps:

[0028] (1) Alloy surface pretreatment: The alloy was placed in acetone solution for 30 min, and the ethanol was mixed 60 ° C for 60 ° C.

[0029] (2) The alloy surface once anodized: the alloy block obtained by step (1) as an anode, graphite sheet as a cathode, at 20 ° C, 0.1 mol / L fluoronicate / ethylene glycol electrolyte oxidation 60min, ethanol cleaning, and the surface is dried.

[0030] (3) Alloy surface secondary anode oxidation treatment: the alloy block obtained by the surface of the anode oxidation of the surface (2), will be used as an anode, in a 0.1 mol / L dihydrate dihydrogenate electrolytic solution with 20V voltage anode Oxidation 60min, ethanol washing, after drying, obtained the secondary anodized metal block.

Embodiment 2

[0032] Method for preparing a micro-nanophoe having a nickel-chromium alloy surface, such as figure 1 As shown, including the following steps:

[0033] (1) Alloy surface pretreatment: The alloy was placed in acetone solution for 30 min, and the ethanol was mixed 60 ° C for 60 ° C.

[0034] (2) The alloy surface once anodized: the alloy block obtained by step (1) as an anode, graphite sheet as a cathode, 20 ° C, 0.05 mol / L fluoride / ethylene glycol electrolyte oxidation 60min, ethanol cleaning, and the surface is dried.

[0035] (3) Alloy surface secondary anode oxidation treatment: the alloy block obtained by the surface of the anode oxidation of the surface (2), will be used as an anode, in a 0.1 mol / L dihydrate dihydrogenate electrolytic solution with 20V voltage anode Oxidation 60min, ethanol washing, after drying, obtained the secondary anodized metal block.

Embodiment 3

[0037] Method for preparing a micro-nanophoe having a nickel-chromium alloy surface, such as figure 1 As shown, including the following steps:

[0038] (1) Alloy surface pretreatment: The alloy was placed in acetone solution for 30 min, and the ethanol was mixed 60 ° C for 60 ° C.

[0039] (2) One anode oxidation of the alloy surface: the alloy block obtained by step (1) as an anode, graphite sheet as a cathode, at 20 ° C, 0.15 mol / L fluoride / ethylene glycol electrolyte oxidation 60min, ethanol cleaning, and the surface is dried.

[0040] (3) Alloy surface secondary anode oxidation treatment: the alloy block obtained by the surface of the anode oxidation of the surface (2), will be used as an anode, in a 0.1 mol / L dihydrate dihydrogenate electrolytic solution with 20V voltage anode Oxidation 60min, ethanol washing, after drying, obtained the secondary anodized metal block.

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Abstract

The invention discloses a preparation method of micro-nano holes in the surface of a nickel-containing iron-chromium alloy. The method comprises the following steps that firstly, the alloy is pretreated to remove surface impurities; the surface of the alloy is subjected to first-time anodic oxidation treatment, the alloy serves as an anode, a graphite sheet serves as a cathode, first-time anodic oxidation is conducted, and then the alloy is cleaned with ethyl alcohol and dried for use; and then, secondary anodic oxidation treatment is conducted on the surface of the alloy subjected to primary anodic oxidation treatment, the alloy serves as an anode, a graphite flake serves as a cathode, secondary anodic oxidation is conducted in a sodium dihydrogen phosphate dihydrate solution, then ethyl alcohol is used for cleaning, and the flexible alloy surface with obvious micro-nano holes is obtained after drying. According to the method, the alloy surface is subjected to flexible treatment by adopting a two-time anodic oxidation method, the universality of the anodic oxidation alloy is higher, micro-nano holes in the surface of the nickel-iron-chromium-containing alloy are ideally arranged through two-time anodic oxidation, and application of the nickel-iron-chromium-containing alloy in the fields of 3C, electronics and the like is promoted.

Description

Technical field [0001] The present invention belongs to the technical field of flexible treatment of metal alloy surfaces, and more particularly to the preparation method of micro-nanopores containing nickel-nickel-iron-containing alloy surfaces. Background technique [0002] Metal surface treatment generally has a lot of treatment methods, including mechanical, chemical etching, ion implantation surface modification, and anodizing and other methods. Generally used mechanical methods Treatment of metal surfaces include sandblasting cleaning, hair, brush cleaning, etc., main purpose is to remove oil sewage such as metal surface while increasing the roughness of the metal surface and improving the bonding effect. Timers, quenching, and annealing iron sands and steel jade or carbonized silicon can be treated using iron sand, quenching and annealing iron sand and steel jade or carbonized silicon. The metal surface can be obvious to see some pothole and surface roughness after sandbla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/02C25D11/34
CPCC25D11/02C25D11/34
Inventor 刘玉松赵正大陈振沈英东周凡陈程杨二豪倪莉娟
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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