Preparation method for sulfamic acid type impact nickel

The technology of sulfamic acid type and sulfamic acid nickel is applied in the field of preparation of sulfamic acid type impact nickel, which can solve problems such as corrosion of electroplating equipment, and achieve the effects of reducing the degree of corrosion, reducing the content of chloride ions, and improving the effect of electroplating

Inactive Publication Date: 2018-02-23
无锡鼎亚电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a preparation method of sulfamic acid-type impact nickel to solve the problem of corrosion of electroplating equipment by hydrochloric acid-type impact nickel in the prior art

Method used

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  • Preparation method for sulfamic acid type impact nickel

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preparation example Construction

[0013] figure 1 It is a flowchart of the preparation method of the sulfamic acid type impact nickel according to the embodiment of the present invention. The preparation method of the sulfamic acid type impact nickel provided by the invention comprises the following steps:

[0014] In step S1, a certain amount of distilled water is added into the liquid medicine tank, and the distilled water is heated to control the water temperature within the range of 40-50°C.

[0015] In step S2, a certain amount of sulfamic acid is added into the liquid medicine tank and stirred and dissolved with a glass rod, so that the concentration of the sulfamic acid in the aqueous solution is 10-150 g / L.

[0016] In step S3, a certain amount of sodium chloride is added into the liquid medicine tank and stirred and dissolved with a glass rod, so that the concentration of the sodium chloride in the aqueous solution is 10-15 g / L.

[0017] In step S4, a certain amount of nickel sulfamate concentrate (...

no. 1 example

[0019] The first embodiment: first, a certain amount of distilled water is added into the liquid medicine tank, and the distilled water is heated so that the water temperature is controlled at 45°C; secondly, a certain amount of sulfamic acid is added into the liquid medicine tank and stirred and dissolved with a glass rod, Make the concentration of described sulfamic acid in the aqueous solution be 40g / L; Then, add a certain amount of sodium chloride and stir and dissolve with glass rod in the described liquid medicine tank, make the concentration of described sodium-chlor in the aqueous solution be 10g / L; At last, add a certain amount of nickel sulfamate concentrate (nickel-containing 180g / L) in the liquid medicine tank and stir evenly with a glass rod, so that the concentration of nickel in the aqueous solution is 10g / L to 200g / L, The nickel concentration gradient was 10g / L, and 20 groups of sulfamic acid impact nickel solutions with different nickel contents were prepared....

no. 2 example

[0020] The second embodiment: first, a certain amount of distilled water is added into the liquid medicine tank, and the distilled water is heated so that the water temperature is controlled at 45°C; secondly, a certain amount of sulfamic acid is added into the liquid medicine tank and stirred and dissolved with a glass rod, Make the concentration of the sulfamic acid in the aqueous solution be 10g / L to 150g / L, the concentration gradient of the sulfamic acid is 10g / L, make 15 groups of comparative tests; then, add a certain amount of chlorinated Sodium is also stirred and dissolved with a glass rod, so that the concentration of the sodium chloride in the aqueous solution is 10g / L; at last, a certain amount of nickel sulfamate concentrate (containing nickel 180g / L) is added in the liquid medicine tank and mixed with glass Stir the rod evenly, so that the concentration of nickel in the aqueous solution is 40g / L, and prepare 15 groups of sulfamic acid impact nickel solutions with ...

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Abstract

The invention provides a preparation method for sulfamic acid type impact nickel. The preparation method includes the following steps that firstly, a certain amount of distilled water is added into aliquid chemical tank, and the distilled water is heated so that the water temperature can be controlled within the range of 40-50 DEG C; secondly, a certain amount of sulfamic acid is added into the liquid chemical tank and stirred through a glass rod to be dissolved, and the concentration of the sulfamic acid in an aqueous solution is made to be 10-150 g / L; thirdly, a certain amount of sodium chloride is added into the liquid chemical tank and stirred through a glass rod to be dissolved, and the concentration of the sodium chloride in the aqueous solution is made to be 10-15 g / L; and finally,a certain amount of a nickel aminosulfonate concentrated solution is added into the liquid chemical tank and stirred evenly through a glass rod, and the concentration of nickel in the aqueous solution is made to be 10-200 g / L, so that a sulfamic acid type impact nickel solution is obtained. Through the preparation method for the sulfamic acid type impact nickel, the problem that hydrochloric acidtype impact nickel corrodes electroplating equipment in the prior art is solved.

Description

technical field [0001] The invention relates to the field of electroplating, in particular to a preparation method of sulfamic acid type impact nickel. Background technique [0002] Impact nickel is generally a pre-plating process applied to stainless steel materials before nickel plating. It is used as a functional coating, not as a final nickel coating, and can improve the bonding force between the nickel coating and the stainless steel substrate. At present, the commonly used impact nickel is hydrochloric acid impact nickel. The hydrochloric acid in the hydrochloric acid impact nickel will cause serious corrosion to the electroplating equipment, and the hydrochloric acid is volatile, which reduces the working environment of the entire electroplating workshop. The invention is a substitute developed for hydrochloric acid impact nickel, which can solve the corrosion and pollution problems of hydrochloric acid while satisfying the benefits brought by hydrochloric acid impact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/12C25D5/36
CPCC25D3/12C25D5/36
Inventor 朱虬
Owner 无锡鼎亚电子材料有限公司
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