Technology for preparing Ni shaped charge liner using sulfamic acid nickel electroforming solution

A technology of nickel sulfamate and drug-type cover, which is applied in electroforming, ammunition, offensive equipment, etc., can solve the problems of unsatisfactory strength and unstable performance of electroformed nickel deposits, and achieve stable performance

Inactive Publication Date: 2009-03-04
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0004] The object of the present invention is to provide a kind of method for preparing electroformed nickel drug-type cover in electroforming liquid of nickel sulfa

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  • Technology for preparing Ni shaped charge liner using sulfamic acid nickel electroforming solution
  • Technology for preparing Ni shaped charge liner using sulfamic acid nickel electroforming solution

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Embodiment Construction

[0014] Preparation of nickel sulfamate electroforming solution: add 10,000 g of nickel sulfamate, 250 g of nickel chloride, 750 g of boric acid, and 0.75 g of saccharin in an electroforming tank with a volume of 50 L, add 15 L of deionized water, and stir ( 70r / min) to 50°C and hold for 10h. Take a 3000mL beaker and wash it with deionized water, dry it, add 22.5g sodium lauryl sulfate, 2.5g butynediol, add 1500mL deionized water, stir and heat to boiling, wait for sodium lauryl sulfate and butynediol After the diol is dissolved, slowly pour it into the prepared nickel sulfamate solution, and then add deionized water to make the solution 25L. Stir fully and keep warm (50°C) for 12h.

[0015] Pretreatment of cathode mandrel and electrolytic nickel anode: subject the cathode mandrel to 1000 # Polish silicon carbide water sandpaper, wash with tap water, immerse in acetone solution for ultrasonic cleaning for 20 minutes, take out deionized water for cleaning, dry, immerse in a mi...

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Abstract

The invention relates to a technology for preparing a nickel shaped charge liner through a nickel sulfamic acid electroforming method, which belongs to the technical field of electroforming preparation. The key technology is the preparation of electroforming solution; nickel sulfamic acid, nickelous chloride, boric acid, saccharine and deionized water are added into an electroforming bath; and then the stirring speed is regulated, temperature is raised and preserved; sodium dodecyl sulfate, butynediol and deionized water are added into a glass container to be stirred and heated to boil; after the sodium dodecyl sulfate and the butynediol are dissolved, the well mixed solution in the glass container is poured into the electroforming bath; the deionized water is injected to the required volume and then stirred, and the temperature is preserved for 10h to 30h. Follow-up procedures comprise cathode mandrel and electroformed nickel anode pre-treatment, electroforming and cathode demoulding. The technology has the advantages that the technology can prepare the nickel shaped charge liner with stable performance, and can conveniently and effectively control the grain size of the electroformed nickel so as to control the performance of the electroformed nickel.

Description

technical field [0001] The invention belongs to the technical field of electroforming preparation of metal materials, and is used for preparing a nickel drug-type mask with stable performance, and can control the grain size of electroforming nickel to obtain different processing performances. Background technique [0002] Compared with other electroforming materials, electroforming nickel not only has excellent chemical properties, machinability and mechanical properties, but also can be used to electroform highly precise parts (Liu Renzhi. Nickel electroforming. Practical electroforming technology. 2006, 9; 242-243.). However, there are still some shortcomings in electroforming at present, such as the performance of the electroforming layer is not stable enough, and the strength at room temperature is not ideal. From the famous Hall-Petch formula, it can be seen that the performance of metal materials is closely related to the grain size of the material structure, and it h...

Claims

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Application Information

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IPC IPC(8): C25D1/00C25D1/02C25D3/16F42B12/04
Inventor 冯传超田文怀杨峰李春华王雷成生伟
Owner UNIV OF SCI & TECH BEIJING
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