Magnesium alloy chemical polishing technology

A chemical polishing and magnesium alloy technology, applied in the field of metal surface treatment technology, can solve the problems of large consumption of chemical solution, unfavorable use, difficult to control the processing time, etc., and achieve the effect of improving the polishing effect and simple polishing process

Inactive Publication Date: 2018-01-12
NANTONG ITALMATCH CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the surface polishing process of magnesium alloys, most of them are treated with chromic anhydride, phenol, etc., and the processing time is difficult to control, and the consumption of chemical solution is also large, which is not conducive to actual use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A magnesium alloy chemical polishing process, through the preparation of polishing solution, pretreatment, chemical polishing and posttreatment steps, completes the magnesium alloy chemical polishing process; the specific steps are as follows:

[0013] (1) Make polishing solution: Add 30% oxalic acid and 1g hydrochloric acid into 1L water, stir well to make polishing solution;

[0014] (2) Pretreatment: Clean the magnesium alloy workpiece to remove surface oil;

[0015] (3) Chemical polishing: soak the cleaned magnesium alloy workpiece in the polishing solution for 10 minutes;

[0016] (4) Post-processing: After polishing, the workpiece is cleaned and dried by ultrasonic waves.

Embodiment 2

[0018] A magnesium alloy chemical polishing process, through the preparation of polishing solution, pretreatment, chemical polishing and posttreatment steps, completes the magnesium alloy chemical polishing process; the specific steps are as follows:

[0019] (1) Make a polishing solution: Add 60g of nitric acid, 60g of oxalic acid and 5g of hydrochloric acid into 1L of water, stir well to make a polishing solution;

[0020] (2) Pretreatment: Clean the magnesium alloy workpiece to remove surface oil;

[0021] (3) Chemical polishing: soak the cleaned magnesium alloy workpiece in the polishing solution for 14 minutes;

[0022] (4) Post-processing: After polishing, the workpiece is cleaned and dried by ultrasonic waves.

Embodiment 3

[0024] A magnesium alloy chemical polishing process, through the preparation of polishing solution, pretreatment, chemical polishing and posttreatment steps, completes the magnesium alloy chemical polishing process; the specific steps are as follows:

[0025] (1) Make a polishing solution: Add 45g of nitric acid, 40g of oxalic acid and 3g of hydrochloric acid into 1L of water, stir well to make a polishing solution;

[0026] (2) Pretreatment: Clean the magnesium alloy workpiece to remove surface oil;

[0027] (3) Chemical polishing: soak the cleaned magnesium alloy workpiece in the polishing solution for 12 minutes;

[0028] (4) Post-processing: After polishing, the workpiece is cleaned and dried by ultrasonic waves.

[0029] The invention greatly improves the polishing effect by rationally preparing the polishing liquid, and the polishing process is simple.

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PUM

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Abstract

The invention discloses a magnesium alloy chemical polishing technology. Through the steps of preparing a polishing solution, conducting pretreatment, conducting chemical polishing and conducting post-treatment, the magnesium alloy chemical polishing technology is completed. The magnesium alloy chemical polishing technology comprises the specific steps of preparing the polishing solution, wherein25-80 g of nitric acid, 20-60 g of oxalic acid and 2-10 g of hydrochloric acid are added to 1 L of water, the mixture is evenly stirred, and the polishing solution is prepared; conducting pretreatment, wherein a magnesium alloy workpiece is washed, and surface oil dirt is removed; conducting chemical polishing, wherein the washed magnesium alloy workpiece is placed in the polishing solution for dipping, and the dipping time is 10-14 minutes; and conducting post-treatment, wherein after polishing is ended, ultrasonic waves are used for cleaning the workpiece, and the workpiece is dried. The magnesium alloy chemical polishing technology has the advantages that through the reasonably prepared polishing solution, the polishing effect is greatly improved, and the polishing technology is simple.

Description

technical field [0001] The invention belongs to a metal surface treatment process, in particular to a magnesium alloy chemical polishing process. Background technique [0002] Magnesium alloy has the advantages of light weight, high specific strength, small elastic modulus, anti-electromagnetic interference, good shielding, strong shock absorption, good processing performance and good thermal conductivity. It has been widely used in national defense, electronic appliances, etc. application. However, in the surface polishing process of magnesium alloys, most of them are treated with chromic anhydride, phenol, etc., and the treatment time is difficult to control, and the consumption of chemical solution is also large, which is not conducive to actual use. Contents of the invention [0003] The object of the present invention is to aim at the deficiencies of the prior art, and now provide a magnesium alloy chemical polishing process with simple process and less chemical solu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F3/03
Inventor 胡剑锋
Owner NANTONG ITALMATCH CHEM
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