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A nickel-cobalt-titanium ternary alloy electroplating bright process

A ternary alloy and bright technology, which is applied in the field of nickel-cobalt-titanium ternary alloy electroplating bright process, can solve the problems of waste water discharge, energy consumption, large space occupation, and many equipment, so as to reduce emissions and energy consumption and occupy space The effect of small area and meeting the requirements of environmental protection

Inactive Publication Date: 2018-08-07
武汉吉和昌新材料股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chrome plating process has a great adverse effect on the environment, water source, atmosphere and human body, and there are three other processes before chrome plating, which takes up a lot of space and equipment, and will bring a lot of waste water discharge and energy. consume

Method used

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  • A nickel-cobalt-titanium ternary alloy electroplating bright process
  • A nickel-cobalt-titanium ternary alloy electroplating bright process
  • A nickel-cobalt-titanium ternary alloy electroplating bright process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The composition and dosage of nickel-cobalt-titanium ternary alloy electroplating solution are NiSO 4 ·6H 2 O 60g / L, NiCl 2 ·6H 2 O 15g / L, CoSO 4 ·6H 2 O 7.5g / L, Ti 4+ Solution 2g / L (with TiOSO 4 Calculation), boric acid 25g / L, trisodium citrate dihydrate 60g / L, auxiliary complexing agent succinimide 12g / L, add deionized water to 1L;

[0055] The preparation method of described electroplating solution is as follows:

[0056] (1) Preparation of tetravalent titanium solution: take an appropriate amount of TiOSO 4 Put it into a container, add sulfuric acid, and place it at 30°C for about 20 hours until TiOSO 4 Dissolve, remove impurities, add a small amount of hydrogen peroxide, and get orange-red Ti 4+ The solution;

[0057] (2) Add NiSO to a container with an appropriate amount of distilled water 4 ·6H 2 O﹑NiCl 2 ·6H 2 O and CoSO 4 ·6H 2 O, and heated to 60°C with stirring to dissolve;

[0058] (3) Add appropriate amount of trisodium citrate dihydrate an...

Embodiment 2

[0062] Same as Example 1, except that 1 liter of electroplating solution contains 12 milliliters of primary brighteners in Example 1;

[0063] Described primary brightener is made up of following composition:

[0064] Saccharin 180g / L,

[0065] Sodium Hydroxypropylthiosulfate 5g / L,

[0066] Add deionized water to make up to 1 L.

Embodiment 3

[0068] Same as Example 2, the difference is that 8 milliliters of secondary brighteners are contained in 1 liter of the electroplating solution described in Example 2;

[0069] Described secondary brightening agent is made up of following composition:

[0070]

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Abstract

The invention provides a nickel-cobalt-titanium ternary alloy electroplating bright process. After the workpiece is pretreated, it is placed in a nickel-cobalt-titanium ternary alloy electroplating solution for electroplating, and then the workpiece is taken out to obtain a surface plated with A nickel-cobalt-titanium ternary alloy workpiece, the composition of the electroplating solution includes divalent nickel salt, divalent cobalt salt, tetravalent titanium salt, sodium citrate, auxiliary complexing agent and buffering agent. The invention achieves the purpose of protecting and decorating the iron base parts through only one electroplating process, reduces the occupied area of ​​the site, reduces the use of equipment, and reduces the discharge of waste water and energy consumption.

Description

technical field [0001] The invention relates to the technical field of metal material surface treatment, in particular to a bright nickel-cobalt-titanium ternary alloy electroplating process. Background technique [0002] In the traditional metal surface treatment process, steel parts need to be plated with a layer of chromium after electroplating alkali copper → acid copper → bright nickel to achieve the purpose of protecting and decorating the substrate. The chrome plating has a bright, white appearance and has the characteristics of high hardness, wear resistance, corrosion resistance and high temperature resistance. However, the chrome plating process has a great adverse effect on the environment, water source, atmosphere and human body, and there are three other processes before chrome plating, which takes up a lot of space and equipment, and will bring a lot of waste water discharge and energy. consume. [0003] Titanium is a silver-white metal with good heat resista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/56
Inventor 宋文超胡哲李玉梁左正忠
Owner 武汉吉和昌新材料股份有限公司