CN1270194A - Chemical polishing agent and its application method - Google Patents
Chemical polishing agent and its application method Download PDFInfo
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- CN1270194A CN1270194A CN 99115749 CN99115749A CN1270194A CN 1270194 A CN1270194 A CN 1270194A CN 99115749 CN99115749 CN 99115749 CN 99115749 A CN99115749 A CN 99115749A CN 1270194 A CN1270194 A CN 1270194A
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- Prior art keywords
- polishing agent
- chemical polishing
- stainless steel
- water
- acid
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- 238000005498 polishing Methods 0.000 title claims abstract description 45
- 239000000126 substance Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 26
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 26
- 239000010935 stainless steel Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 22
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 19
- 238000002161 passivation Methods 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 10
- HNTGIJLWHDPAFN-UHFFFAOYSA-N 1-bromohexadecane Chemical compound CCCCCCCCCCCCCCCCBr HNTGIJLWHDPAFN-UHFFFAOYSA-N 0.000 claims description 8
- 150000003222 pyridines Chemical class 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 238000012805 post-processing Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 2
- IYTMFTGIQKSMLV-UHFFFAOYSA-N 6-bromohexadecane Chemical compound CCCCCCCCCCC(Br)CCCCC IYTMFTGIQKSMLV-UHFFFAOYSA-N 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- ZFFCTRHZJVOVAE-UHFFFAOYSA-N 1-bromohexadecane;pyridine Chemical compound C1=CC=NC=C1.CCCCCCCCCCCCCCCCBr ZFFCTRHZJVOVAE-UHFFFAOYSA-N 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 18
- 239000000243 solution Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 125000001246 bromo group Chemical group Br* 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 239000012047 saturated solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 241000143437 Aciculosporium take Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229940045641 monobasic sodium phosphate Drugs 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- ing And Chemical Polishing (AREA)
Abstract
A chemical polishing agent for the surface of stainless steel containing high Cr content is prepared from hydrochloric acid, nitric acid, hydrofluoric acid, bromohexadecane pyridine, thiourea and water. It serves to remove burrs, mechanically damaged layer and stress layer from surface of stainless steel and increase surface finished quality and mechanical strength. Its application method includes preheating stainless steel part, polishing and passivating.
Description
The present invention relates to a kind of stainless steel surface be carried out employed chemical polishing agent of polished finish and using method thereof.
Polishing is the working method that goods such as glass, metal, plastics are carried out surperficial polishing, comprises several different methods such as mechanical polishing, electropolishing, chemical rightenning.At present the chemical polishings that adopt are handled on the stainless steel components surface more, this method can be polished complex-shaped part, and can prevent the local corrosion of part, but used rumbling compound is unsatisfactory to the polishing effect on stainless steel components surface in the prior art, and solution is not long work-ing life, in the third phase " electroplating and the environmental protection " magazine of publishing in March, 1998, the prescription of multiple rumbling compound is disclosed, with wherein two kinds be that example is told about the problem that exists: (1) its prescription comprises hydrochloric acid, nitric acid, hydrofluoric acid, hexamethylenetetramine and water, this rumbling compound parts processed surface time is longer, each polishing takes 3～10min, and piece surface grey oxide film is difficult to remove, and smooth finish is difficult to reach requirement; (2) rumbling compound of forming by hydrochloric acid, nitric acid, hydrofluoric acid, acetate, iron nitrate, citric acid saturated solution, SODIUM PHOSPHATE, MONOBASIC saturated solution and water, this rumbling compound prescription kind is too much, prepare not easy to operate, polishing time is also longer, take 0.5～5min at every turn, piece surface is the residual one deck grey oxide film of meeting equally, and smooth finish also is difficult to reach requirement.
One of purpose of the present invention provides a kind of being used for polished finish is carried out on the stainless steel metal surface, can effectively remove surperficial empty burr and big movable burr, increases the chemical polishing agent of surface smoothness; Two of purpose provides that a kind of production cost is low, production efficiency is high, can effectively improve the method for the use rumbling compound of the present invention of stainless steel components physical strength.
For realizing above-mentioned first purpose, the invention provides a kind of chemical polishing agent that stainless steel surface is handled of being used for, its special character is that the weight percent of this rumbling compound consists of
Hydrochloric acid 8.3～11.9 nitric acid 9.9～14.2 hydrofluoric acid 8.1～11.6
Bromohexadecane yl pyridines 0.1～0.2 thiocarbamide 0.3～0.8 water 61.3～73.3
The preferred weight percent of described rumbling compound consists of:
Hydrochloric acid 8.9～9.5 nitric acid 10.6～11.0 hydrofluoric acid 9.7～9.0
Bromohexadecane yl pyridines 0.15～0.2 thiocarbamide 0.3～0.5 water 69.8～71.35
The manufacture craft of rumbling compound of the present invention comprises the steps: successively
A. take by weighing quantitative bromohexadecane yl pyridines and thiocarbamide, they fully are dissolved in the reactor in a small amount of distilled water;
B. in reactor, add quantitative hydrochloric acid, nitric acid, hydrofluoric acid, then by quantitatively supplying distilled water.
For realizing described second purpose, the present invention also provides a kind of using method of described chemical polishing agent, and its special character is: comprise the steps successively
A. preheating: stainless steel components is placed on preheating in the hot water;
B. polishing: with stainless steel components put into prepared, temperature is 90 ℃～100 ℃ chemical polishing agent, polishing time is looked the piece surface situation, is generally 10 seconds～30 seconds, also can suitably adjust;
When described rumbling compound temperature was 98 ℃～100 ℃, polishing effect was best.
C. passivation: clean stainless steel components with hot water; Passivation in 60 ℃～80 ℃ passivating solution again, passivating solution is the mixed solution of a kind of strong oxidizer or two or more strong oxidizers; After cleaning with cold water then, neutralize with weak base again; Clean with cold water, treat the part drying after, packing.
The using method of above-mentioned chemical polishing agent, also comprise described part with in the weak base and after post-processing step: use the cold water cleaning components earlier, uses ultrasonic cleaning again, then with after the ethanol dehydration, packing.This step is applicable to handles the higher stainless steel components of precision requirement, for example: the parts of electronic gun in the colour picture tube.
Described passivating solution weight percent is composed as follows:
Sulfuric acid 9.0～9.5 nitric acid 60～70 water 20.5～31.0
Described passivating solution weight percent is composed as follows:
Sulfuric acid 9.2 nitric acid 63 water 27.8
Described neutralizer is the ammoniacal liquor of concentration 2%.
Described hot water water temperature is 60 ℃～80 ℃.
Described chemical polishing agent is specially adapted to the big stainless steel components of chrome content, and wherein the content of nickel is difficult for too much, for example: the 16Cr14Ni type, the 1Cr18Ni type, the 1Cr18Ni9Ti type is particularly useful for 16Cr14Ni type stainless steel.
Below the present invention is elaborated, described component all by weight percentage
Embodiment one:
Rumbling compound: hydrochloric acid 8.4 nitric acid 13 hydrofluoric acid 8.2
Bromohexadecane yl pyridines 0.1 thiocarbamide 0.35 water 69.95
Using method:
A. preheating: the hot water preheating of stainless steel components being put into 65 ℃;
B. polishing: it is 95 ℃ rumbling compound that the part after the preheating is put into temperature, and less because of burr on the part, the control immersion time is 15 seconds;
C. passivation: with the part behind 65 ℃ the hot water cleaning polishing, part is put into 70 ℃ passivating solution passivation, passivating solution adopts nitric acid and mixed potassium dichromate again; Use the cold water cleaning components, again part is put into concentration and be 4% Al (OH)
3Its surface acidity debris of neutralization is dried after the cold water flush in the solution, then packing.
Embodiment two:
Rumbling compound: hydrochloric acid 8.9 nitric acid 10.6 hydrofluoric acid 8.7
Bromohexadecane yl pyridines 0.2 thiocarbamide 0.3 water 71.3
Using method:
A. preheating: the hot water preheating of stainless steel components being put into 75 ℃;
B. polishing: it is 100 ℃ rumbling compound that the part after the preheating is put into temperature, and the control immersion time is 30 seconds;
C. passivation: with the part behind 75 ℃ the hot water cleaning polishing, part is put into 80 ℃ passivating solution passivation, it is that sulfuric acid accounts for 9% that passivating solution weight is formed again, and nitric acid accounts for 70%, and water accounts for 21%; Behind the cold water cleaning components, again part is put into concentration and be 4% ammoniacal liquor and neutralize;
D. aftertreatment: after cleaning with cold water, dry after cleaning 2min under 40 ℃ the ultrasonic wave being set at again, pack part then;
Embodiment three: present embodiment is a preferred embodiment, and polishing back piece surface smooth finish is higher.
Rumbling compound: hydrochloric acid 9.4 nitric acid 10.8 hydrofluoric acid 8.8
Bromohexadecane yl pyridines 0.2 thiocarbamide 0.3 water 70.5
Using method:
A. preheating: the hot water preheating of stainless steel components being put into 70 ℃;
B. polishing: it is 98 ℃ rumbling compound that the part after the preheating is put into temperature, and the control immersion time is 25 seconds;
C. passivation: with the part behind 70 ℃ the hot water cleaning polishing, part is put into 75 ℃ passivating solution passivation, passivating solution weight consists of sulfuric acid 9.2% again, nitric acid 64%, and water accounts for 26.8%; After cold water cleans, again part is put into concentration and be 2% ammoniacal liquor and neutralize;
D. aftertreatment: after part cleaned with cold water, clean 3min being set under 30 ℃ the ultrasonic wave again, immerse in 98% ethanol, take out oven dry, pack part then.
Embodiment four:
Rumbling compound: hydrochloric acid 10 nitric acid 12 hydrofluoric acid 9.7 bromos 0.2 thiocarbamide 0.4 water 67.7
Using method is with embodiment two.
Embodiment five:
Rumbling compound: hydrochloric acid 11.5 nitric acid 14 hydrofluoric acid 11.2 bromos 0.1 thiocarbamide 0.65 water 62.55
Using method is with embodiment three.
Compared with prior art, advantage of the present invention is:
1, polishing effect is good, also can improve the stainless steel mechanical strength simultaneously. This chemical polishing agent can remove not The empty burr that rust steel surface mechanical stamping causes and big movable burr also can remove the machinery on stainless steel surface Damage layer and stress layer not only improve the part surface smoothness, also can improve the part mechanical strength, prolong zero The service life of part. An important indicator is roughness when measuring fineness, and roughness is with the material travers Determining with vertical stripes, is 0.63～0.3 to stainless steel surface General Requirements travers index RZ value, And vertical stripes index RZ value is 0.8～0.4 to be qualified, after measured, adopts stainless that the present invention processed Steel surface travers index RZ value is generally 0.4～0.3, and vertical stripes index RZ value is generally 0.5～0.4.
2, polishing velocity is fast, enhances productivity. Bromohexadecane base pyridine is surface-active among the present invention Agent can make the rapid wetting stainless steel of polishing agent solution surface, adds the fast response process, and each polishing time only is 10～30 seconds.
3, the chemical polishing agent prescription is simple, and raw material is easy to get, and preparation technology is simple, easy to operate.
4, production cost is low, and its processing cost only is 1/3 of prior art, even lower.
Claims (6)
1, a kind of chemical polishing agent that stainless steel surface is handled of being used for is characterized in that: the prescription of this chemical polishing agent and heavy per-cent consist of:
Hydrochloric acid 8.3～11.9 nitric acid 9.9～14.2 hydrofluoric acid 8.1～11.6
Bromohexadecane yl pyridines 0.1～0.2 thiocarbamide 0.3～0.8 water 61.3～73.3
2, chemical polishing agent as claimed in claim 1 is characterized in that: its prescription forms and each weight percentages of components is:
Hydrochloric acid 8.9～9.5 nitric acid 10.6～11.0 hydrofluoric acid 8.7～9.0
Bromohexadecane yl pyridines 0.15～0.2 thiocarbamide 0.3～0.5 water 69.8～71.35
3, the using method of a kind of claim 1 or 2 described chemical polishing agent is characterized in that: comprise the steps: successively
A. preheating: stainless steel components is placed on preheating in the hot water;
B. polishing: it is 90 ℃～100 ℃ chemical polishing agent that stainless steel components is put into temperature, and polishing time is 10～30 seconds;
C. passivation: clean stainless steel components with hot water; Part is put into 60 ℃～80 ℃ passivating solution passivation, passivating solution is the mixing solutions of a kind of strong oxidizer or two or more strong oxidizers again; Again part is cleaned with cold water, put into weak caustic solution and neutralize; Clean with cold water, treat the part drying after, packing.
4, the using method of chemical polishing agent as claimed in claim 3, it is characterized in that, also comprise described part with in the weak base and after post-processing step: part is by taking out in the neutralizer, carries out ultrasonic cleaning after cleaning with cold water, with after the ethanol dehydration, pack then.
5, the using method of chemical polishing agent as claimed in claim 4 is characterized in that: described chemical polishing agent temperature is 98 ℃～100 ℃.
6, the using method of chemical polishing agent as claimed in claim 4 is characterized in that: described preparation of passivation solution and weight percent consist of:
Sulfuric acid 9～9.5 nitric acid 60～70 water 20.5～31
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99115749A CN1084368C (en) | 1999-04-09 | 1999-04-09 | Chemical polishing agent and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99115749A CN1084368C (en) | 1999-04-09 | 1999-04-09 | Chemical polishing agent and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1270194A true CN1270194A (en) | 2000-10-18 |
| CN1084368C CN1084368C (en) | 2002-05-08 |
Family
ID=5278665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99115749A Expired - Fee Related CN1084368C (en) | 1999-04-09 | 1999-04-09 | Chemical polishing agent and its application method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1084368C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306539C (en) * | 2003-03-24 | 2007-03-21 | 中国科学院电子学研究所 | Method for removing grid rag by micro bead |
| CN104562021A (en) * | 2014-12-23 | 2015-04-29 | 常熟市鑫吉利金属制品有限公司 | Method for polishing surface of portable metal product |
| CN105780004A (en) * | 2016-01-13 | 2016-07-20 | 哈尔滨飞机工业集团有限责任公司 | Chemical reagent for deburring of steel parts |
| CN105862049A (en) * | 2016-06-06 | 2016-08-17 | 滨中元川金属制品（昆山）有限公司 | Anti-blackening treatment technology for screw |
| CN107354462A (en) * | 2017-06-07 | 2017-11-17 | 江苏长龙国际贸易有限公司 | A kind of deburring liquid |
| WO2019006675A1 (en) * | 2017-07-04 | 2019-01-10 | 深圳市恒兆智科技有限公司 | Polishing agent, aluminum alloy part and polishing process therefor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469193A (en) * | 2013-08-23 | 2013-12-25 | 中核苏阀横店机械有限公司 | Formula of forming pickling passivation solution for surface oxide film of stainless steel casting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053926A (en) * | 1990-02-10 | 1991-08-21 | 张鹏 | Gold and silver and expensive, the surperficial light-dispelling agent of dilute metal |
-
1999
- 1999-04-09 CN CN99115749A patent/CN1084368C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306539C (en) * | 2003-03-24 | 2007-03-21 | 中国科学院电子学研究所 | Method for removing grid rag by micro bead |
| CN104562021A (en) * | 2014-12-23 | 2015-04-29 | 常熟市鑫吉利金属制品有限公司 | Method for polishing surface of portable metal product |
| CN105780004A (en) * | 2016-01-13 | 2016-07-20 | 哈尔滨飞机工业集团有限责任公司 | Chemical reagent for deburring of steel parts |
| CN105862049A (en) * | 2016-06-06 | 2016-08-17 | 滨中元川金属制品（昆山）有限公司 | Anti-blackening treatment technology for screw |
| CN105862049B (en) * | 2016-06-06 | 2018-07-13 | 滨中元川金属制品（昆山）有限公司 | The anti-blackening processing technology of screw |
| CN107354462A (en) * | 2017-06-07 | 2017-11-17 | 江苏长龙国际贸易有限公司 | A kind of deburring liquid |
| WO2019006675A1 (en) * | 2017-07-04 | 2019-01-10 | 深圳市恒兆智科技有限公司 | Polishing agent, aluminum alloy part and polishing process therefor |
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| Publication number | Publication date |
|---|---|
| CN1084368C (en) | 2002-05-08 |
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