A kind of stainless steel room temperature chemical polishing liquid and polishing process

A chemical polishing and stainless steel technology, applied in the field of polishing, can solve the problems of inability to ensure the size change of the workpiece, water pollution, air pollution, etc., and achieve the effects of easy control of the reaction process, obvious polishing effect, and simple waste liquid treatment

Active Publication Date: 2017-08-04
Dongguan Kaimeng Chemical Co Ltd
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many disadvantages in this polishing process: (1) it needs to be heated to above 75°C, which consumes a lot of energy; (2) a large amount of yellow smoke (nitrogen dioxide gas) will be generated during polishing, causing serious air pollution, which is not conducive to the health of operators; ( 3) Toxic ferricyanide complex ions are also added to the bright additives of some polishing fluids, which seriously affects the health of operators; (4) the reaction is violent and difficult to control the reaction process, and the size of the workpiece cannot be guaranteed; (5) ) Waste liquid contains a large amount of pollutants such as nitrogen and phosphorus that make water eutrophication, which is easy to cause water pollution

Method used

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  • A kind of stainless steel room temperature chemical polishing liquid and polishing process
  • A kind of stainless steel room temperature chemical polishing liquid and polishing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Treatment plan for stainless steel products with serious oil stains and scales:

[0033] A kind of stainless steel room temperature chemical polishing liquid, by weight percentage, comprises the following components:

[0034] Sulfuric acid 15%, oxalic acid 5%,

[0035] 10% hydrochloric acid, 1% glacial acetic acid,

[0036] Brightener 2%, the balance is water.

[0037] Polishing liquid application polishing process:

[0038] (1) Degreasing: due to the poor contact between the surface of the stainless steel product and the polishing liquid when there is serious oil pollution, the brightness of the polished surface is uneven. Therefore, the stainless steel product to be polished needs to be soaked in a degreasing agent for 7 minutes. ;

[0039] (2) Water washing: put the degreasing stainless steel product into running water and wash it for 1 minute;

[0040] (3) Pre-pickling: Since the reaction process between the surface of the stainless steel product and the polish...

Embodiment 2

[0046] Treatment plan for stainless steel products with serious oil stains and scales:

[0047] A kind of stainless steel room temperature chemical polishing liquid, by weight percentage, comprises the following components:

[0048] Sulfuric acid 18%, oxalic acid 6%,

[0049] 12% hydrochloric acid, 1% glacial acetic acid,

[0050] Brightener 2%, the balance is water.

[0051] Polishing liquid application polishing process:

[0052] (1) Degreasing: due to the poor contact between the surface of the stainless steel product and the polishing liquid when there is serious oil pollution, the brightness of the polished surface is uneven. Therefore, the stainless steel product to be polished should be soaked in a degreasing agent for 10 minutes. ;

[0053] (2) Water washing: put the degreasing treated stainless steel product into running water and wash it for 3 minutes;

[0054] (3) Pre-pickling: Since the reaction process between the surface of the stainless steel product and th...

Embodiment 3

[0061] Treatment plan for stainless steel products without serious oil stains and scales:

[0062] A kind of stainless steel room temperature chemical polishing liquid, by weight percentage, comprises the following components:

[0063] Sulfuric acid 10%, oxalic acid 6%,

[0064] 12% hydrochloric acid, 1% glacial acetic acid,

[0065] Brightener 2%, the balance is water.

[0066] Polishing liquid application polishing process:

[0067] (1) Chemical polishing: soak the stainless steel product to be polished in chemical polishing solution for 8 minutes. The brightener of the polishing liquid contains degreasing ingredients and the polishing liquid has the effect of descaling. Therefore, for stainless steel products that are not very serious about oil stains and scales, the steps of degreasing and pre-pickling can be directly polished. When polishing stainless steel products There should be a certain distance (about 1cm) between them so that the stainless steel products can fu...

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Abstract

The invention discloses a stainless steel normal temperature chemical polishing solution. The stainless steel normal temperature chemical polishing solution comprises the following constituents by weight percent: 10 to 18 percent of 98 percent sulphuric acid, 4 to 6 percent of oxalic acid, 8 to 12 percent of hydrochloric acid, 1 percent of glacial acetic acid, 2 percent of a brightening agent, and the balance of water. The invention further discloses a polishing application technology of the polishing solution. The polishing solution provided by the invention does not contain poisonous substance, nitrogen or phosphorus, does not release nocuous gas during polishing, is beneficial to environment protection, does not need heating, does not need special heat-proof equipment and heating equipment, is stable in performance during use, and is easy to control.

Description

[0001] Technical field: [0002] The invention relates to the technical field of polishing, in particular to a stainless steel normal temperature chemical polishing liquid and a polishing process. [0003] Background technique: [0004] With the improvement of people's living standards, stainless steel metal products are increasingly entering kitchen utensils, tableware, etc. in family life, which requires higher and higher requirements for stainless steel metal products. The appearance should be mirror-bright, delicate and pleasing to the eye. [0005] At present, in the field of chemical polishing of stainless steel, the three-acid polishing liquid and its application process are mainly used in combination of phosphoric acid, nitric acid and hydrochloric acid. There are many disadvantages in this polishing process: (1) it needs to be heated to above 75°C, which consumes a lot of energy; (2) a large amount of yellow smoke (nitrogen dioxide gas) will be produced during polishi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F3/06
Inventor 刘子灿
Owner Dongguan Kaimeng Chemical Co Ltd
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