Aluminum surface ash removing agent and preparation method thereof, and surface ash removing method

A technology of ash removal agent and aluminum material, which is applied in the direction of surface reaction electrolytic coating, coating, electrolytic coating, etc., can solve the problems of inconspicuous ash removal effect, fast ash removal speed, and slow ash removal speed, and achieve improved ash removal The effect of ash speed, smooth surface effect, and obvious ash removal effect

Inactive Publication Date: 2016-04-06
BYD CO LTD
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects that the ash removal effect is not obvious and the ash removal speed is slow when using the aluminum material surface deashing agent of the prior art to remove the ash on the surface of high-silicon cast aluminum, and to provide a kind of a

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aluminum surface ash removing agent and preparation method thereof, and surface ash removing method
  • Aluminum surface ash removing agent and preparation method thereof, and surface ash removing method
  • Aluminum surface ash removing agent and preparation method thereof, and surface ash removing method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] In the second aspect, the present invention provides a method for preparing an aluminum surface ash remover, the method comprising: adding HNO 3 , NH 4 HF 2 , Aluminum corrosion inhibitor and water are evenly mixed to obtain aluminum surface ash remover, among which, based on 1L aluminum surface ash remover, HNO 3 The dosage is 540-720g, NH 4 HF 2 The dosage is 100-150g, the dosage of aluminum corrosion inhibitor is 1-8g, and the balance is water.

[0022] In order to improve the ash removal effect and ash removal speed of the prepared aluminum surface ash remover, it is preferable to use 1L aluminum surface ash remover as HNO 3 The dosage is 585-675g, NH 4 HF 2 The dosage is 120-130g, the dosage of aluminum corrosion inhibitor is 2-4g, and the balance is water.

[0023] Those skilled in the art should understand that in the preparation method of the aluminum surface ash remover of the present invention, HNO 3 The amount of 540-720g or 585-675g refers to the added HNO 3 The ac...

Example Embodiment

[0039] Example 1

[0040] This embodiment is used to illustrate the aluminum surface ash remover of the present invention and its preparation method.

[0041] Add 125gNH to the container one by one 4 HF 2 , 685mL65vol% HNO 3 Solution (d=1.40g / mL) and 100mL deionized water, stir, wait until NH 4 HF 2 After completely dissolved, add 3g of hexamethylenetetramine, continue to stir to completely dissolve the hexamethylenetetramine, and add the remaining amount of deionized water to make the volume of the mixture 1L, and mix well to obtain the aluminum surface ash remover .

Example Embodiment

[0042] Example 2

[0043] This embodiment is used to illustrate the aluminum surface ash remover of the present invention and its preparation method.

[0044] Add 120g NH to the container one by one 4 HF 2 643mL65vol% HNO 3 Solution (d=1.40g / mL) and 100mL deionized water, stir, wait until NH 4 HF 2 After completely dissolving, add 2g of hexamethylenetetramine, continue to stir to completely dissolve the hexamethylenetetramine, and add the remaining amount of deionized water to make the volume of the mixed solution 1L, and mix well to obtain the aluminum surface ash remover .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an aluminum surface ash removing agent and a preparation method thereof, and a surface ash removing method. The aluminum surface ash removing agent is mixed liquid prepared by uniformly mixing HNO3, NH4HF2, an aluminum corrosion inhibitor and water; and in terms of 1 L of the aluminum surface ash removing agent, the usage amount of HNO3 is 540 to 720 g, the usage amount of NH4HF2 is 100 to 150 g, and the usage amount of the aluminum corrosion inhibitor is 1 to 8 g, with the balance being water. The aluminum surface ash removing agent has ideal ash removing effect and a fast ash removing speed when applied to surface ash removal of high-silicon cast aluminum.

Description

technical field [0001] The invention relates to the technical field of aluminum material surface treatment, in particular to an aluminum material surface deashing agent, a preparation method thereof and a surface deashing method. Background technique [0002] The purpose of surface ash removal in the process of aluminum anodic oxidation is to remove the black hanging ash attachments remaining on the surface of the product after alkali etching, that is, to dissolve the difficult to form silicon, copper, iron, magnesium, etc. in the aluminum material during alkali etching. Dissolve the deposits to obtain a brighter metal surface, and also neutralize the residual alkali to prevent the electrolyte from being polluted. Therefore, the ash removal process is also called "light out" process. The ash removal process is the most critical process before anodizing, which is of great significance for obtaining a bright appearance. [0003] The currently commonly used aluminum surface d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C23G1/12C23G1/06C25D11/16
Inventor 黄玉枭程俊陈梁
Owner BYD CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap