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A kind of method for preparing and producing nickel buckle cathode plate

A cathode plate, nickel button technology, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of low production efficiency of nickel buttons, difficult to peel off nickel buttons, and irregularities, so as to facilitate tripping and reduce labor intensity. , the effect of round shape

Active Publication Date: 2015-09-30
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the electrolytic nickel buckle plate increases with the use time, cracks will appear between the convex post and the surrounding insulating layer. The nickel buckle will gradually wrap the convex post during the growth process, making it difficult to peel off the nickel buckle and forming irregularities, which will lead to the production efficiency of the nickel buckle. low, high scrap rate

Method used

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  • A kind of method for preparing and producing nickel buckle cathode plate
  • A kind of method for preparing and producing nickel buckle cathode plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] like figure 1 and 2 Put a stainless steel rod 2 with a diameter of 10 mm and a length of 12 mm into a ceramic tube 5 with an inner diameter of 16 mm, a wall thickness of 5 mm, and a length of 5 mm, and at the same time place the graphite tube 4 on the ceramic tube 5 to cover the stainless steel rod exposed from the ceramic tube 5 2. The mass ratio of aluminum powder, iron oxide, chromium oxide, nickel oxide, and titanium oxide is 28:60:8.5:4:4.5, mixed and dried at 80°C for 1 hour to prepare the reaction material, and the amount of iron powder added The reaction material is 27% of the total weight of the reaction material, and then the reaction material 1 is loaded into the gap between the stainless steel rod 2, the ceramic tube 5 and the graphite tube 4, and then heated to 870 ° C in the resistance furnace 3 and kept for 8 minutes, and then cooled with the furnace , when reaching the redox reaction temperature, the reaction occurs , the heat released by the reaction...

Embodiment 2

[0019] Put a stainless steel rod with a diameter of 10mm and a length of 12mm into a ceramic tube with an inner diameter of 16mm, a wall thickness of 5mm, and a length of 5mm. At the same time, place the graphite tube on the ceramic tube to cover the stainless steel rod exposed from the ceramic tube. The mass ratio of iron, chromium oxide, nickel oxide, and titanium oxide is 28:60:8.5:4:4.5, mixed and dried at 90°C for 1 hour to prepare a reaction material, and the amount of iron powder added is 25% of the total weight of the reaction material. %, then put the reaction material into the gap between the stainless steel rod and the ceramic tube and the graphite tube, then heat it to 900°C and keep it for 10 minutes, then cool with the furnace, when it reaches the redox reaction temperature, the reaction occurs , the heat released by the reaction melts all the reactant powders. During the heat preservation process, the reduced iron, nickel, chromium, and titanium sink to the bott...

Embodiment 3

[0021] Put the stainless steel rod into the ceramic tube, and place the graphite tube on the ceramic tube to cover the stainless steel rod exposed from the ceramic tube. The mass ratio of aluminum powder, iron oxide, chromium oxide, nickel oxide, and titanium oxide is 28: Mix 60:8.5:4:4.5 and dry at 100°C for 1 hour to prepare the reaction material, and the amount of iron powder added is 30% of the total weight of the reaction material, and then the reaction material is loaded into stainless steel rods, ceramic tubes and graphite tubes In the gap, heat it to 850°C and hold it for 9 minutes, then cool with the furnace, when it reaches the oxidation-reduction reaction temperature, the reaction occurs , the heat released by the reaction melts all the reactant powders. During the heat preservation process, the reduced iron, nickel, chromium, and titanium sink to the bottom due to their specific gravity, and the lighter alumina floats on the upper part. At the same time, the titani...

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Abstract

The invention provides a method for preparing a nickel button cathode plate, and belongs to the field of metal ceramic welding. According to the invention, a stainless steel rod is placed in a ceramic pipe; a graphite pipe is placed on the ceramic pipe and sleeves the stainless steel rod exposed from the ceramic pipe; a reaction material is added into the space between the stainless steel rod and the ceramic pipe and the graphite pipe; the materials are heated to 850-900 DEG C, and the temperature of maintained for 8-10min; the materials are cooled with the furnace; the graphite pipe is removed; reaction product higher than the upper end face of the ceramic pipe is removed, such that a selective conductive column is obtained; the selective conductive column is embedded into an electrolysis pole plate; and an insulation material is sprayed on the surface of the electrolysis pole plate, such that a cathode plate used for producing nickel button is obtained. With the method provided by the invention, labor intensity can be reduced, production efficiency can be improved, and pole plate service life can be prolonged. The nickel button can be only formed on the end face of stainless steel and weld seam, and does not exceed outer-layer ceramic. The appearance of the nickel button is round and neat, such that button detachment is convenient, and nickel button yield is improved.

Description

technical field [0001] The invention belongs to the field of cermet welding, relates to a method for preparing and producing a nickel buckle cathode plate, and more specifically relates to a technology for welding stainless steel and ceramics by using a combustion synthesis technology. Background technique [0002] At present, as an important electroplating industrial raw material, the electrolytic nickel buckle is mainly used as an anode material for electroplating and electroforming nickel. Compared with ordinary electrolytic nickel plate, it has a wide application prospect in the electroplating industry because of its high utilization rate, good activity, low voltage during the electroplating process, and energy saving. In the production process of electrolytic nickel buckle, the performance of electrolytic nickel buckle plate occupies an extremely important position. In the actual production process of the electrolytic nickel button, due to the poor structure of the ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C7/02
Inventor 周荣锋白玉鑫靳志力蒋业华周荣
Owner KUNMING UNIV OF SCI & TECH
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