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Composition for surface treatment on aluminum flexible connection

A surface treatment and composition technology, which is applied in the field of compositions for surface treatment of aluminum soft joints, can solve the problems of poor coating surface brightness, uneven coating surface, graying, etc., and achieves high brightness, dense and uniform surface. Effect

Active Publication Date: 2020-04-17
常州极太汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, nickel alloy electroplating and pulse electroplating have developed rapidly due to their good corrosion resistance, high hardness, and good brightness, and have attracted more and more attention. However, there are still some problems, such as poor bonding strength of the coating, easy to There is a large area of ​​peeling off; the surface of the coating is uneven; the surface brightness of the coating is poor, and it will appear gray and dark after a period of time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Embodiment 1 of the present invention provides a composition for surface treatment of aluminum flexible joints, each 1L of the composition contains:

[0081] Nickel sulfate 200g;

[0082] Chloride salt 40g;

[0083] Boric acid 37g;

[0084] Complexing agent 9g;

[0085] Additive 1.4g;

[0086] Wetting agent 0.3g.

[0087] The chloride salt is nickel chloride.

[0088] The complexing agent is sodium citrate.

[0089] The additives are 2-amino-5-chlorobenzenesulfonic acid and sodium p-acetamidobenzenesulfinate.

[0090] The weight ratio of the 2-amino-5-chlorobenzenesulfonic acid and sodium p-acetamidobenzenesulfinate is 1:1.

[0091] The wetting agent is cetylpyridinium bromide.

[0092] The preparation method of the composition for surface treatment of aluminum flexible connections is as follows: weigh each component according to the above content, add water to make 1L, and set aside.

Embodiment 2

[0094] Embodiment 2 of the present invention provides a composition for surface treatment of aluminum flexible joints, each 1L of the composition contains:

[0095] Nickel sulfate 195g;

[0096] Chloride salt 38g;

[0097] Boric acid 35g;

[0098] Complexing agent 8g;

[0099] Additive 1.2g;

[0100] Wetting agent 0.2g.

[0101] The chloride salt is nickel chloride.

[0102] The complexing agent is sodium citrate.

[0103] The additives are 2-amino-5-chlorobenzenesulfonic acid and sodium p-acetamidobenzenesulfinate.

[0104] The weight ratio of the 2-amino-5-chlorobenzenesulfonic acid to sodium p-acetamidobenzenesulfinate is 0.8:1.

[0105] The wetting agent is cetylpyridinium bromide.

[0106] The preparation method of the composition for surface treatment of aluminum flexible connections is as follows: weigh each component according to the above content, add water to make 1L, and set aside.

Embodiment 3

[0108] Embodiment 3 of the present invention provides a composition for surface treatment of aluminum flexible joints, each 1L of the composition contains:

[0109] Nickel sulfate 205g;

[0110] Chloride salt 42g;

[0111] Boric acid 40g;

[0112] Complexing agent 10g;

[0113] Additive 1.5g;

[0114] Wetting agent 0.4g.

[0115] The chloride salt is nickel chloride.

[0116] The complexing agent is sodium citrate.

[0117] The additives are 2-amino-5-chlorobenzenesulfonic acid and sodium p-acetamidobenzenesulfinate.

[0118] The weight ratio of the 2-amino-5-chlorobenzenesulfonic acid to sodium p-acetamidobenzenesulfinate is 1.2:1.

[0119] The wetting agent is cetylpyridinium bromide.

[0120] The preparation method of the composition for surface treatment of aluminum flexible connections is as follows: weigh each component according to the above content, add water to make 1L, and set aside.

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Abstract

The invention relates to the technical field of surface treatment, in particular to a composition for the surface treatment on aluminum flexible connection. Each 1L composition is prepared from 190-215g of nickel sulfate, 32-46g of chlorate, 30-48g of boric acid, 5-15g of a complexing agent and 1-2g of an addition agent. According to the composition for the surface treatment on the aluminum flexible connection, the nickel sulfate, the chlorate, the boric acid, the complexing agent, the addition agent and a wetting agent are adopted to jointly prepare the composition for the surface treatment on the aluminum flexible connection, a better synergistic effect is achieved among the nickel sulfate, the chlorate, the boric acid, the complexing agent, the addition agent and the wetting agent, theprepared composition has the better surface treatment effect on the aluminum flexible connection, the surface is dense and homogeneous, and brightness is higher; and phenomena such as graying and darkening cannot appear on the surface of the aluminum flexible connection after the composition is placed for a period of time. In addition, the binding strength of surface cladding and the aluminum flexible connection is higher, the aluminum flexible connection is repeatedly bent to breakage, and phenomena such as peeling and falling off cannot appear to the surface of the aluminum flexible connection.

Description

technical field [0001] The invention relates to the technical field of surface treatment, more specifically, the invention relates to a composition for surface treatment of aluminum flexible connections. Background technique [0002] Surface treatment is a method of artificially forming a surface layer on the surface of a base material with mechanical, physical and chemical properties different from that of the base. According to the different methods used, the surface treatment technology can be divided into electrochemical method, chemical method, thermal processing method, vacuum method and so on. Among them, the electrochemical method includes electroplating. Electroplating refers to a surface processing method that deposits flat and firmly bonded metals, alloys or composite materials on the surface of the base metal by the principle of electrolysis. Electroplating can impart decorative and protective functions and some new properties such as wear resistance, conductiv...

Claims

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Application Information

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IPC IPC(8): C25D3/12
CPCC25D3/12
Inventor 陶安李定赵平安夏晶
Owner 常州极太汽车配件有限公司
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