CN103305888A

Movatterモバイル変換

Info

Publication number: CN103305888A
Application number: CN2012100697399A
Authority: CN
Inventors: 徐苏云
Original assignee: SUZHOU CHUNXING PRECISION MECHANICAL CO Ltd
Current assignee: SUZHOU CHUNXING PRECISION MECHANICAL CO Ltd
Priority date: 2012-03-16
Filing date: 2012-03-16
Publication date: 2013-09-18

Abstract

The invention belongs to the field of aviation flight and in particular relates to an anodic oxidation treatment method for an aerial aluminum alloy surface. The method comprises the following stages of: receiving and checking, manual solvent cleaning, protecting and racking, alkaline cleaning, washing, water film detection, alkaline corrosion, anodic oxidation, hot-water drying, detaching to remove protection, and ending. According to the anodic oxidation treatment method for the aerial aluminum alloy surface, the operation is simple and convenient, and aerial aluminum alloys with fewer bumps and uniform film thickness can be obtained.

Description

A kind of aerolite surface anode oxidative treatment method

Technical field

The invention belongs to the aviation flight field, be specifically related to a kind of aerolite surface anode oxidative treatment method.

Background technology

At Aeronautics and Astronautics, Weapon System, at the conventional direct current anodic process that is used for aluminum alloy materials such as aluminum casting material (AC material) or aluminium die-casting material (ADC material), suitable is that target object is immersed in the anodizing fluid (for example sulfuric acid bath), and to the every 1dm of target object²Surface-area apply the following electric current of 3A.Yet for AC material and ADC material, the growth velocity of the anodic oxide coating of this processing method all was low to moderate below 1.0 μ m/ minutes.In addition, dc anodizing thing coating comprises a large amount of concavo-convex, therefore has inhomogeneous thickness.This unhomogeneity has become the deteriorated principal element of coating quality.

Summary of the invention

Technical purpose of the present invention is for the deficiencies in the prior art, provide a kind of obtain less concavo-convex and the aerolite surface anode oxidative treatment method of homogeneous film thickness arranged.

The technical scheme that realizes the technology of the present invention purpose is: a kind of aerolite surface anode oxidative treatment method, and it may further comprise the steps:

Receive and testing stage, aerolite is received and check, enter after the assay was approved next step;

In the manual solvent cleaning stage, the aerolite that is up to the standards is carried out manual solvent cleaning;

Protection and shelving the stage is to carrying out the aerolite protection after the manual solvent cleaning and shelving;

The alkali wash phase carries out alkali with aerolite and cleans;

In the washing stage, the aerolite after the alkali cleaning is carried out water clean;

The moisture film detecting stage, the rear aerolite of detection contains moisture film and then returns the b step cycle, and the rear aerolite of detection does not contain moisture film and then enters next stage;

In the caustic corrosion stage, the aerolite that does not contain moisture film is carried out caustic corrosion process;

In the deoxidation treatment stage, the aerolite of processing through caustic corrosion carries out deoxidation again;

In the anodic oxidation stage, the aerolite after the deoxidation treatment is carried out anodic oxidation treatment;

Hot water dries up the stage, the aerolite of anodic oxidation treatment is carried out hot water clean and dry up;

Unload frame and remove the protection stage, the aerolite after drying up is unloaded finish after adduction is removed protection.

As the further optimization of technique scheme, described caustic corrosion stage, killing stage, be equipped with the washing stage after the anodic oxidation stage.

As the further optimization of technique scheme, the described anodic oxidation stage comprises sulphuric acid anodizing stage, common anode oxidation stage and hard anodizing stage.

As the further optimization of technique scheme, the cleaning cell body material during described alkali wash phase is PP or PVC.

As the further optimization of technique scheme, the depth of corrosion in described caustic corrosion stage is 0.00005～0.0002 inch/face.

Compared with prior art, the beneficial effect main manifestations of a kind of aerolite of the present invention surface anode oxidative treatment method is: easy and simple to handle, can obtain less concavo-convex and the aerolite of homogeneous film thickness arranged.

Description of drawings

Figure 1 shows that the flow diagram of a kind of aerolite of the present invention surface anode oxidative treatment method.

Embodiment

As one of most preferred embodiment of a kind of aerolite of the present invention surface anode oxidative treatment method, referring to accompanying drawing 1, it may further comprise the steps:

The alkali wash phase carries out alkali with aerolite and cleans;

The moisture film detecting stage, the rear aerolite of detection contains moisture film and then returns manual solvent cleaning step cycle, and the rear aerolite of detection does not contain moisture film and then enters next stage;

Described caustic corrosion stage, killing stage, be equipped with the washing stage after the anodic oxidation stage.

The described anodic oxidation stage comprises sulphuric acid anodizing stage, common anode oxidation stage and hard anodizing stage.

Cleaning cell body material during described alkali wash phase is PVC.

The depth of corrosion in described caustic corrosion stage is 0.00005～0.0002 inch/face, is preferably in the present embodiment 0.00008 inch/face.

In sum; after those of ordinary skill in the art reads file of the present invention; need not the replacement that scheme between other various corresponding conversion scheme or the various embodiments of the present invention is made in creative brainwork according to technical scheme of the present invention and technical conceive, all belong to the scope that the present invention protects.

Claims

1. an aerolite surface anode oxidative treatment method is characterized in that, it may further comprise the steps:

A. receive and testing stage, aerolite is received and check, enter after the assay was approved next step;

B. in the manual solvent cleaning stage, the aerolite that is up to the standards is carried out manual solvent cleaning;

C. protect and shelve the stage, to carrying out the aerolite protection after the manual solvent cleaning and shelving;

D. the alkali wash phase carries out alkali with aerolite and cleans;

E. wash the stage, the aerolite after alkali is cleaned carries out water and cleans;

F. moisture film detecting stage, aerolite contains moisture film and then returns the b step cycle after detecting, and aerolite does not contain moisture film and then enters next stage after detecting;

G. in the caustic corrosion stage, the aerolite that does not contain moisture film is carried out caustic corrosion process;

H. in the deoxidation treatment stage, the aerolite of processing through caustic corrosion carries out deoxidation again;

I. in the anodic oxidation stage, the aerolite after the deoxidation treatment is carried out anodic oxidation treatment;

J. hot water dries up the stage, the aerolite of anodic oxidation treatment is carried out hot water clean and dry up;

K. unload frame and remove the protection stage, the aerolite after drying up is unloaded finish after adduction is removed protection.

2. a kind of aerolite according to claim 1 surface anode oxidative treatment method is characterized in that, described caustic corrosion stage, killing stage, is equipped with the washing stage after the anodic oxidation stage.

3. the surperficial anode oxidative treatment method of a kind of aerolite according to claim 1 is characterized in that, the described anodic oxidation stage comprises sulphuric acid anodizing stage, common anode oxidation stage and hard anodizing stage.

4. the surperficial anode oxidative treatment method of a kind of aerolite according to claim 1 is characterized in that, the cleaning cell body material during described alkali wash phase is PP or PVC.

5. the surperficial anode oxidative treatment method of a kind of aerolite according to claim 1 is characterized in that, the depth of corrosion in described caustic corrosion stage is 0.00005～0.0002 inch/face.