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Electrochemical polishing technology for aluminum or stainless steel products

A stainless steel, electrochemical technology, applied in the field of electrochemical polishing, can solve problems such as difficult to find electrolytic polishing parameters, many parameters of electrolytic polishing, complex composition of polishing liquid, etc., to achieve no safety hazard, consistent color and high production efficiency Effect

Inactive Publication Date: 2016-07-13
北京鼎臣世纪超导科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the polishing quality, and there are many parameters affecting electrolytic polishing, it is difficult to find the correct electrolytic polishing parameters
At the same time, the composition of the polishing liquid is relatively complicated, and it is necessary to pay attention to safe operation during use
In addition to sulfuric acid and phosphoric acid, the traditional polishing liquid also adds chromic anhydride, and chromium ions are heavy metal ions, which not only cause cancer to the human body, but also pollute the environment

Method used

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  • Electrochemical polishing technology for aluminum or stainless steel products
  • Electrochemical polishing technology for aluminum or stainless steel products
  • Electrochemical polishing technology for aluminum or stainless steel products

Examples

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preparation Embodiment 1

[0022] Preparation Example 1 Electrochemically polished aluminum product

[0023] The process of electrochemically polishing aluminum products of the present invention comprises the following steps:

[0024] (1) Cleaning: Put the aluminum products to be polished into acetone and ethanol in turn, clean them with ultrasonic waves for 7 minutes, and dry them for later use;

[0025] (2) Prepare polishing solution: add strong acid in ethanol, mix well, the volume ratio of strong acid and ethanol is shown in Table 1;

[0026] (3) Electrolytic polishing: take the cleaned aluminum product as the anode, and the cathode plate is a stainless steel plate or lead plate, put it in the polishing solution, connect the DC power supply, control the voltage at 8-15V, and put it in a water bath environment of 5-20°C Polishing for 8-9 minutes, the area of ​​the stainless steel plate or lead plate is 4 times the maximum cross-sectional area of ​​the aluminum product;

[0027] (4) Rinse and dry: R...

preparation Embodiment 2

[0034] Preparation Example 2 Electrochemically Polished Stainless Steel Products

[0035] A process for electrochemically polishing stainless steel products, comprising the following steps:

[0036] (1) Cleaning: Put the stainless steel products to be polished into acetone and ethanol in turn, clean them with ultrasonic waves for 7 minutes, and dry them for later use;

[0037] (2) prepare polishing liquid: phosphoric acid is mixed with concentrated sulfuric acid and lactic acid, and the volume ratio of mixed acid is as shown in table 3;

[0038] (3) Electrolytic polishing: take the cleaned stainless steel product as the anode, and the cathode plate as the lead plate or stainless steel plate, put it in the polishing solution, connect the DC power supply, control the current at 0.5A, and polish it in a water bath environment at 40-100°C 30-32min, the area of ​​the stainless steel plate or lead plate is 4 times the maximum cross-sectional area of ​​the stainless steel product; ...

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Abstract

The invention relates to the field of electrochemical polishing and discloses an electrochemical polishing technology for aluminum or stainless steel products.The electrochemical polishing technology for aluminum or stainless steel products comprises the following steps that aluminum or stainless steel products to be polished are put into an organic solvent for ultrasonic cleaning and then blow-dried for use; an aluminum polishing solution is prepared, wherein strong acid is added into ethyl alcohol and mixed evenly, and the volume ratio of strong acid to ethyl alcohol is 1:(5-6); a stainless steel polishing solution is prepared, wherein phosphoric acid, concentrated sulfuric acid and lactic acid are mixed evenly, and the volume ratio of phosphoric acid to concentrated sulfuric acid to lactic acid is (6-8):5:3; the aluminum or stainless steel products serve as anode and cathode boards and are put into the corresponding polishing solutions, a direct current power source is connected, and polishing is carried out; the aluminum or stainless steel products are washed with clean water and blow-dried.The electrochemical polishing technology is easy and convenient to implement, free of potential safety hazards, efficient and environmentally friendly.

Description

technical field [0001] The invention relates to the field of electrochemical polishing, in particular to a process for electrochemically polishing aluminum or stainless steel products. Background technique [0002] Due to the continuous and rapid growth of my country's economy, aluminum or stainless steel metal products continue to increase, but their utilization rate is not satisfactory. In industry, the principle of electrochemistry is used to polish aluminum or stainless steel metal products, thereby improving the use effect of metal products. Electrolytic polishing is mainly used for metal products and parts with small surface roughness, such as mirrors, stainless steel tableware, decorations, injection needles, springs, blades and stainless steel pipes. The effect of electrolytic polishing is closely related to the electrolyte, current and voltage, and polishing time. In order to improve the polishing quality, and there are many parameters affecting electrolytic polish...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F3/20C25F3/24
CPCC25F3/20C25F3/24
Inventor 王三胜
Owner 北京鼎臣世纪超导科技有限公司
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