CN105925985B - A kind of stainless iron room temperature chemical polishing solution and preparation method thereof and application method - Google Patents
A kind of stainless iron room temperature chemical polishing solution and preparation method thereof and application method Download PDFInfo
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- CN105925985B CN105925985B CN201610568793.6A CN201610568793A CN105925985B CN 105925985 B CN105925985 B CN 105925985B CN 201610568793 A CN201610568793 A CN 201610568793A CN 105925985 B CN105925985 B CN 105925985B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
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Abstract
The present invention relates to medal polish technical field, and in particular to a kind of stainless iron room temperature chemical polishing solution and preparation method thereof and application method, the stainless iron room temperature chemical polishing solution include the raw material of following percentage by weight：Nitric acid 7 15%, sulfuric acid 2 6%, hydrofluoric acid 2 4%, brightener 0.15 0.25%, antirust agent 0.05 0.15%, surfactant 0.1 0.2%, corrosion inhibiter 0.1 0.2%, water surplus.The stainless iron room temperature chemical polishing solution of the present invention can be polished stainless ironwork under normal temperature condition, and can form passivating film in product surface after polishing, and safety and environmental protection, stability is good, and polishing and good passivation effect, use cost are low.
Description
Technical field
The present invention relates to medal polish technical field, and in particular to a kind of stainless iron room temperature chemical polishing solution and its preparation side
Method and application method.
Background technology
As the improvement of people's living standards, stainless iron metal product is being increasingly entering the kitchen in family life
Tool, tableware etc., this requirement just to stainless iron metal product is higher and higher, and not only durable, barrier propterty is good, also outer
Sight reaches bright in mirror surface, fine and smooth pleasing.
At present, stainless iron chemical polishing field is main or three acid polishing liquid to the combination of phosphoric acid, nitric acid and hydrochloric acid and
Its technique for applying, there are shortcomings for the glossing：（1）Need to be heated to more than 75 DEG C, energy consumption is high；（2）Only polish, can not
With passivation；（3）A large amount of tobacco can be produced during polishing（Nitrogen dioxide gas）Cause air seriously to pollute, be unfavorable for operating personnel's
Health；（4）The noxious material iron cyanide is also added into the brightener of some polishing fluids and coordinates ion, is seriously affected
The health of operating personnel.
The content of the invention
In order to overcome shortcoming and defect existing in the prior art, it is an object of the invention to provide a kind of stainless iron room temperature
Chemical polishing solution, the stainless iron room temperature chemical polishing solution can be polished stainless ironwork under normal temperature condition, and polish
After can product surface formed passivating film, safety and environmental protection, stability is good, polishing and good passivation effect, use cost it is low.
Another object of the present invention is to provide a kind of preparation method of stainless iron room temperature chemical polishing solution, the preparation method
Step is simple, convenient operation and control, stable quality, and production efficiency is high, and production and application cost is low, can large-scale industrial production.
It is also an object of the present invention to provide a kind of application method of stainless iron room temperature chemical polishing solution, by the use
The passivating film corrosion resistance that method is formed is strong, and brightness and surface smoothness are preferable.
The purpose of the present invention is achieved through the following technical solutions：A kind of stainless iron room temperature chemical polishing solution, the stainless iron
Room temperature chemical polishing solution includes the raw material of following percentage by weight：
Nitric acid 7-15%
Sulfuric acid 2-6%
Hydrofluoric acid 2-4%
Brightener 0.15-0.25%
Antirust agent 0.05-0.15%
Surfactant 0.1-0.2%
Corrosion inhibiter 0.1-0.2%
Water surplus.
The concentration of the nitric acid（Mass fraction）For 68%, the concentration of the sulfuric acid（Mass fraction）For 98%, the hydrogen fluorine
The concentration of acid（Mass fraction）For 40%.
Main acid in the stainless iron room temperature chemical polishing solution of the present invention is nitric acid, sulfuric acid and hydrofluoric acid, and nitric acid is with sulfuric acid
Acid with strong oxidizing property, passivation and dissolution are mainly played to stainless iron, can dissolve most of oxide skin of stainless iron product surface
Layer；Hydrofluoric acid has stronger solvability to the iron chromium oxide, Mn oxide, molybdenum oxide of indissoluble, and fluorine ion is one
Kind good buffer, fluorine ion in hydrofluoric acid due to atomic radius is small can be with the hydrogen ion fast free knot in nitration mixture
Close, therefore good stablizing solution pH value can be played the role of, while can also improve the stabilization of stainless iron room temperature chemical polishing solution
Property.
The stainless iron room temperature chemical polishing solution of the present invention is by using brightener, antirust agent, surfactant and corrosion inhibiter
Used as additive compound, the rate of dissolution of stainless iron room temperature chemical polishing solution can be kept, improve stainless iron product surface
Brightness and corrosion resistance.
The stainless iron room temperature chemical polishing solution of the present invention strictly controls the weight of each raw material to match somebody with somebody by using above-mentioned raw materials
Than obtained stainless iron room temperature chemical polishing solution can be polished stainless ironwork under normal temperature condition, and can after polishing
To form passivating film in product surface, safety and environmental protection, stability is good, and polishing and good passivation effect, use cost are low.
Preferably, the stainless iron room temperature chemical polishing solution includes the raw material of following percentage by weight：
Nitric acid 9-13%
Sulfuric acid 3-5%
Hydrofluoric acid 2.5-3.5%
Brightener 0.18-0.22%
Antirust agent 0.08-0.12%
Surfactant 0.12-0.18%
Corrosion inhibiter 0.12-0.18%
Water surplus.
It is more highly preferred to, the stainless iron room temperature chemical polishing solution includes the raw material of following percentage by weight：
Nitric acid 11%
Sulfuric acid 4%
Hydrofluoric acid 3%
Brightener 0.2%
Antirust agent 0.1%
Surfactant 0.15%
Corrosion inhibiter 0.15%
Water surplus.
Preferably, the brightener is succinic acid.The present invention by using succinic acid as brightener, in acid system
Succinic acid is positively charged, can ionize hydrogen ion, can be complexed with positively charged succinic acid, improve the light of stainless iron product surface
Brightness.
The antirust agent is octadecylamine polyoxyethylene ether.The present invention by using octadecylamine polyoxyethylene ether as antirust
Agent, can improve the antirust ability and corrosion resistance of stainless iron product surface.
Preferably, the surfactant is nonionic surfactant.The present invention is by using non-ionic surface active
Agent, can keep the rate of dissolution of stainless iron room temperature chemical polishing solution.It is more highly preferred to, the nonionic surfactant is poly-
Ethylene glycol.The present invention, as nonionic surfactant, can keep stainless iron room temperature chemical polishing by using polyethylene glycol
The rate of dissolution of liquid, improves the brightness and corrosion resistance of stainless iron product surface.
The corrosion inhibiter is cationic pyridinium quaternary ammonium salt.The present invention is by using cationic pyridinium quaternary ammonium salt as inhibition
Agent, can improve the brightness and corrosion resistance of stainless iron product surface, and polishing effect is good.Be more highly preferred to, it is described sun from
Sub- pyridine quaternary ammonium salt is hexadecylpyridinium chloride.The present invention is by using hexadecylpyridinium chloride as cationic pyridinium season
Ammonium salt, can prevent or slow down the corrosion of stainless iron, improve the brightness and corrosion resistance of stainless iron product surface, polishing effect
Fruit is good.
Preferably, the stainless iron room temperature chemical polishing solution further includes complexing agent 3-6%.The present invention by using complexing agent,
And it is 3-6% to control its dosage, can improve the complexing power of metal ion.
The complexing agent is organic phosphate.The present invention by using organic phosphate as complexing agent, can be with metal
Ion complexation forms phosphate, removes metal cation, improves the brightness of stainless iron product surface.It is more highly preferred to, it is described
Organic phosphate is at least one in 1-hydroxy ethylidene-1,1-diphosphonic acid salt, ethylene diamine tetra methylene phosphonic acid salt and amino trimethylene phosphonic salt
Kind.For the present invention by using above-mentioned organic phosphate, it is strong with the complexing power of metal ion, can improve stainless ironwork table
The brightness in face.
Preferably, the stainless iron room temperature chemical polishing solution further includes thiocarbamide 0.01-0.09%.The present invention is by using sulphur
Urea, and it is 0.01-0.09% to control its dosage, can prevent or slow down the corrosion of stainless iron, improves the light of stainless iron product surface
Brightness and corrosion resistance, polishing effect are good.
Preferably, the stainless iron room temperature chemical polishing solution further includes thickener 0.5-1.5%.The present invention is in
Thickener, and it is 0.5-1.5% to control its dosage, can improve the stability of stainless iron room temperature chemical polishing solution.
The thickener is sodium cellulosate.The present invention, as thickener, promotes in metal surface by using sodium cellulosate
Polishing mucous membrane is formed, improves polishing effect.
Another object of the present invention is achieved through the following technical solutions：A kind of preparation side of stainless iron room temperature chemical polishing solution
Method, weighs above-mentioned raw materials and is uniformly mixed by weight percentage, and stainless iron room temperature chemical polishing solution is made.
A further object of the invention is achieved through the following technical solutions：A kind of use of stainless iron room temperature chemical polishing solution
Method, pending stainless ironwork is put into stainless iron room temperature chemical polishing solution after soaking 1-3min and is rinsed well i.e. with water
Can.
The beneficial effects of the present invention are：The stainless iron room temperature chemical polishing solution of the present invention can be under normal temperature condition to not
Rust ironwork is polished, and can form passivating film in product surface after polishing, and is solved existing liquid medicine and is only polished and is not passivated
The defects of, safety and environmental protection, stability is good, polishing and good passivation effect.
The stainless iron room temperature chemical polishing solution of the present invention is in use without intense irritation smell, no yellow acid mist production
It is raw, it is skin friendly, atmosphere pollution is reduced, reduces cost.One ton of the stainless iron room temperature chemical polishing solution of the present invention can polish 60
Ton stainless iron, and existing liquid medicine can only polish 20 tons or so, cleaning quantity is higher than 3 times or so of market similar product；Oil removing, remove
Become rusty, descale, being passivated and once complete, use cost is low.
The preparation method step of the present invention is simple, convenient operation and control, stable quality, and production efficiency is high, production and application into
This is low, can large-scale industrial production.
After being polished using the stainless iron room temperature chemical polishing solution of the present invention to stainless ironwork, the passivating film of formation is resistance to
Corrosive power is strong, and brightness and surface smoothness are preferable.
Embodiment
For the ease of the understanding of those skilled in the art, with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of stainless iron room temperature chemical polishing solution, the stainless iron room temperature chemical polishing solution include following percentage by weight
Raw material：
Nitric acid 7%
Sulfuric acid 2%
Hydrofluoric acid 2%
Brightener 0.15%
Antirust agent 0.05%
Surfactant 0.1%
Corrosion inhibiter 0.1%
Water surplus.
The brightener is succinic acid；The antirust agent is octadecylamine polyoxyethylene ether.
The surfactant is nonionic surfactant；The corrosion inhibiter is cationic pyridinium quaternary ammonium salt.
The nonionic surfactant is polyethylene glycol；The cationic pyridinium quaternary ammonium salt is cetyl chloride pyrrole
Pyridine.
A kind of preparation method of stainless iron room temperature chemical polishing solution, weighs above-mentioned raw materials and is uniformly mixed by weight percentage,
Stainless iron room temperature chemical polishing solution is made.
A kind of application method of stainless iron room temperature chemical polishing solution, stainless iron room temperature is put into by pending stainless ironwork
Rinsed well after soaking 1min in chemical polishing solution with water.
Embodiment 2
The difference of the present embodiment and above-described embodiment 1 is：
A kind of stainless iron room temperature chemical polishing solution, the stainless iron room temperature chemical polishing solution include following percentage by weight
Raw material：
Nitric acid 9%
Sulfuric acid 3%
Hydrofluoric acid 2.5%
Brightener 0.18%
Antirust agent 0.08%
Surfactant 0.12%
Corrosion inhibiter 0.12%
Water surplus.
A kind of application method of stainless iron room temperature chemical polishing solution, stainless iron room temperature is put into by pending stainless ironwork
Rinsed well after soaking 1.5min in chemical polishing solution with water.
Embodiment 3
The difference of the present embodiment and above-described embodiment 1 is：
A kind of stainless iron room temperature chemical polishing solution, the stainless iron room temperature chemical polishing solution include following percentage by weight
Raw material：
Nitric acid 11%
Sulfuric acid 4%
Hydrofluoric acid 3%
Brightener 0.2%
Antirust agent 0.1%
Surfactant 0.15%
Corrosion inhibiter 0.15%
Water surplus.
A kind of application method of stainless iron room temperature chemical polishing solution, stainless iron room temperature is put into by pending stainless ironwork
Rinsed well after soaking 2min in chemical polishing solution with water.
Embodiment 4
The difference of the present embodiment and above-described embodiment 1 is：
A kind of stainless iron room temperature chemical polishing solution, the stainless iron room temperature chemical polishing solution include following percentage by weight
Raw material：
Nitric acid 913%
Sulfuric acid 5%
Hydrofluoric acid 3.5%
Brightener 0.22%
Antirust agent 0.12%
Surfactant 0.18%
Corrosion inhibiter 0.18%
Water surplus.
A kind of application method of stainless iron room temperature chemical polishing solution, stainless iron room temperature is put into by pending stainless ironwork
Rinsed well after soaking 2.5min in chemical polishing solution with water.
Embodiment 5
The difference of the present embodiment and above-described embodiment 1 is：
A kind of stainless iron room temperature chemical polishing solution, the stainless iron room temperature chemical polishing solution include following percentage by weight
Raw material：
Nitric acid 15%
Sulfuric acid 6%
Hydrofluoric acid 4%
Brightener 0.25%
Antirust agent 0.15%
Surfactant 0.2%
Corrosion inhibiter 0.2%
Water surplus.
A kind of application method of stainless iron room temperature chemical polishing solution, stainless iron room temperature is put into by pending stainless ironwork
Rinsed well after soaking 3min in chemical polishing solution with water.
Embodiment 6
The difference of the present embodiment and above-described embodiment 1 is：
The stainless iron room temperature chemical polishing solution further includes complexing agent 3%, and the complexing agent is organic phosphate.
The organic phosphate is 1-hydroxy ethylidene-1,1-diphosphonic acid salt.
The stainless iron room temperature chemical polishing solution further includes thiocarbamide 0.01%.
The stainless iron room temperature chemical polishing solution further includes thickener 0.5%, and the thickener is sodium cellulosate.
Embodiment 7
The difference of the present embodiment and above-described embodiment 2 is：
The stainless iron room temperature chemical polishing solution further includes complexing agent 4%, and the complexing agent is organic phosphate.
The organic phosphate is ethylene diamine tetra methylene phosphonic acid salt.
The stainless iron room temperature chemical polishing solution further includes thiocarbamide 0.03%.
The stainless iron room temperature chemical polishing solution further includes thickener 0.8%, and the thickener is sodium cellulosate.
Embodiment 8
The difference of the present embodiment and above-described embodiment 3 is：
The stainless iron room temperature chemical polishing solution further includes complexing agent 4.5%, and the complexing agent is organic phosphate.
The organic phosphate is amino trimethylene phosphonic salt.
The stainless iron room temperature chemical polishing solution further includes thiocarbamide 0.05%.
The stainless iron room temperature chemical polishing solution further includes thickener 1%, and the thickener is sodium cellulosate.
Embodiment 9
The difference of the present embodiment and above-described embodiment 4 is：
The stainless iron room temperature chemical polishing solution further includes complexing agent 5%, and the complexing agent is organic phosphate.
The organic phosphate is 1-hydroxy ethylidene-1,1-diphosphonic acid salt, ethylene diamine tetra methylene phosphonic acid salt and aminotrimethylenephosphonic acid
Any two kinds in salt are with weight ratio 1:The mixture of 1 composition.
The stainless iron room temperature chemical polishing solution further includes thiocarbamide 0.07%.
The stainless iron room temperature chemical polishing solution further includes thickener 1.2%, and the thickener is sodium cellulosate.
Embodiment 10
The difference of the present embodiment and above-described embodiment 5 is：
The stainless iron room temperature chemical polishing solution further includes complexing agent 6%, and the complexing agent is organic phosphate.
The organic phosphate is 1-hydroxy ethylidene-1,1-diphosphonic acid salt, ethylene diamine tetra methylene phosphonic acid salt and aminotrimethylenephosphonic acid
Salt is with weight ratio 1:1:The mixture of 1 composition.
The stainless iron room temperature chemical polishing solution further includes thiocarbamide 0.09%.
The stainless iron room temperature chemical polishing solution further includes thickener 1.5%, and the thickener is sodium cellulosate.
For the concentration for the nitric acid that embodiment 1-10 is used for 68%, the concentration of sulfuric acid is 98%, and the concentration of hydrofluoric acid is 40%.Make
Performance test after being polished with the stainless iron room temperature chemical polishing solution of embodiment 1-10 to stainless ironwork is as shown in table 1：
Table 1
As can be seen from the above table, stainless ironwork is polished using the stainless iron room temperature chemical polishing solution of the present invention
Afterwards, the passivating film corrosion resistance of formation is strong, and brightness and surface smoothness are preferable.
Above-described embodiment is the preferable implementation of the present invention, and in addition, the present invention can be realized with other manner,
Do not depart from and any on the premise of present inventive concept obviously replace within protection scope of the present invention.
Claims (7)
- A kind of 1. stainless iron room temperature chemical polishing solution, it is characterised in that：The stainless iron room temperature chemical polishing solution includes following weight Measure the raw material of percentage：Nitric acid 7-15%Sulfuric acid 2-6%Hydrofluoric acid 2-4%Brightener 0.15-0.25%Antirust agent 0.05-0.15%Surfactant 0.1-0.2%Corrosion inhibiter 0.1-0.2%Water surplus；The brightener is succinic acid；The antirust agent is octadecylamine polyoxyethylene ether；The surfactant is nonionic surfactant；The corrosion inhibiter is cationic pyridinium quaternary ammonium salt；The nonionic surfactant is polyethylene glycol；The cationic pyridinium quaternary ammonium salt is hexadecylpyridinium chloride.
- A kind of 2. stainless iron room temperature chemical polishing solution according to claim 1, it is characterised in that：The stainless iron room temperature Optical polishing liquid further includes the complexing agent that weight percent content is 3-6%, and the complexing agent is organic phosphate.
- A kind of 3. stainless iron room temperature chemical polishing solution according to claim 2, it is characterised in that：The organic phosphate is At least one of 1-hydroxy ethylidene-1,1-diphosphonic acid salt, ethylene diamine tetra methylene phosphonic acid salt and amino trimethylene phosphonic salt.
- A kind of 4. stainless iron room temperature chemical polishing solution according to claim 1, it is characterised in that：The stainless iron room temperature Optical polishing liquid further includes the thiocarbamide that weight percent content is 0.01-0.09%.
- A kind of 5. stainless iron room temperature chemical polishing solution according to claim 1, it is characterised in that：The stainless iron room temperature Optical polishing liquid further includes the thickener that weight percent content is 0.5-1.5%, and the thickener is sodium cellulosate.
- 6. such as a kind of preparation method of stainless iron room temperature chemical polishing solution of claim 1-5 any one of them, it is characterised in that： Above-mentioned raw materials are weighed by weight percentage to be uniformly mixed, and stainless iron room temperature chemical polishing solution is made.
- 7. such as a kind of application method of stainless iron room temperature chemical polishing solution of claim 1-5 any one of them, it is characterised in that： Pending stainless ironwork is put into stainless iron room temperature chemical polishing solution after soaking 1-3min and is rinsed well with water.
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| WO2018218434A1 (en) * | 2017-05-27 | 2018-12-06 | 深圳市恒兆智科技有限公司 | Brightening agent, aluminum alloy workpiece, and surface ash removal and brightening method therefor |
| CN107475718A (en) * | 2017-07-14 | 2017-12-15 | 泰州亚泰金属有限公司 | A kind of chemical polishing solution for aluminum products and preparation method thereof |
| CN108486573A (en) * | 2018-05-29 | 2018-09-04 | 贾红瑞 | A kind of environment-friendly type stainless steel chemical polishing solution and its preparation and polishing method |
| CN113736575A (en) * | 2021-09-28 | 2021-12-03 | 长沙艾森设备维护技术有限公司 | High-speed rail brake resistor sheet cleaning agent and preparation method thereof |
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| DE19639596A1 (en) * | 1996-09-26 | 1998-04-02 | Henkel Kgaa | Process for phosphating steel strips |
| CN104372342A (en) * | 2014-11-25 | 2015-02-25 | 湖北第二师范学院 | Chemical stainless steel polishing solution |
| CN104513986B (en) * | 2014-12-29 | 2017-08-04 | 东莞市凯盟表面处理技术开发有限公司 | A kind of stainless steel normal temperature chemical polishing solution and glossing |
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Address after: 523000 room 103, unit 1, building 44, No. 4, Keji 10th Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee after: Guangdong kaimeng passivation and rust prevention technology Co.,Ltd. Address before: 523000 Dongguan kaimeng surface treatment technology development Co., Ltd Patentee before: DONGGUAN KAIMENG SURFACE TREATMENT TECHNOLOGY DEVELOPMENT Ltd. |