CN103225087B - Stainless steel pickling passivation paste and preparation method thereof - Google Patents
Stainless steel pickling passivation paste and preparation method thereof Download PDFInfo
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- CN103225087B CN103225087B CN201310148518.5A CN201310148518A CN103225087B CN 103225087 B CN103225087 B CN 103225087B CN 201310148518 A CN201310148518 A CN 201310148518A CN 103225087 B CN103225087 B CN 103225087B
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- stainless steel
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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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/025—Cleaning or pickling metallic material with solutions or molten salts with acid solutions acidic pickling pastes
Abstract
The invention discloses a stainless steel pickling passivation paste and a preparation method thereof. The technical point of the invention is that: the stainless steel pickling passivation paste is mainly composed of, by weight, 10-30 parts of a corrosion agent, 20-60 parts of a passivation agent, 10-30 parts of a gelling agent, 40-60 parts of an inorganic filling material, and 1-5 parts of a penetration agent. The invention also discloses a preparation method of the stainless steel pickling passivation paste. During an application process, the stainless steel pickling passivation paste does not release hydrofluoric acid, causes low harm to the environment, and does not harm the skin. Therefore, worker health is ensured, and various welds, oxide scales and rust on the surface of stainless steel can be effectively removed. The stainless steel pickling passivation paste is a green, environment-friendly, and highly efficient product.
Description
Technical field
The present invention relates to acid wash passivation technical field, be specifically related to a kind of acid-washing stainless steel passivation cream and preparation method thereof.
Background technology
Stainless steel can cause surface imperfection, Corrosion Potential in the course of processing, occur black oxidation skin and other metallic compound, yellow weld seam and cold-drawn time grease etc., in order to improve stainless outward appearance and solidity to corrosion, the stainless steel after processing must carry out acid wash passivation process.The main raw material of current production acid-washing stainless steel passivation cream is hydrofluoric acid and nitric acid (as patent CN 86101522), this series products in use can discharge hydrogen fluoride, easy burn human body skin and retina, be unfavorable for that workmen's is healthy, particularly (as reactor, rectifying tower etc.) very harmful to workmen in the construction environment of relative closure.
Summary of the invention
The technical problem that the present invention solves there is provided a kind of safety and environmental protection and acid-washing stainless steel passivation cream of efficient stable and preparation method thereof, the release of this acid wash passivation cream fluoride-free hydrogen in operation, decrease the harm to human body, solve the hydrogen fluoride pollution problem of the medium-term and long-term existence of acid-washing stainless steel passivating process, and the raw material of this acid wash passivation cream is water-soluble substances, clear up simple and efficient and non-secondary pollution problem.
Technical scheme of the present invention is: a kind of acid-washing stainless steel passivation cream, it is characterized in that the component primarily of following weight part forms: etching reagent 10-30 part, passivator 20-60 part, gelifying agent 10-30 part, mineral filler 40-60 part and permeate agent 1-5 part.
Acid-washing stainless steel passivation cream of the present invention forms primarily of the component of following weight part: 10 parts, etching reagent, passivator 30 parts, gelifying agent 20 parts, mineral filler 35 parts and permeate agent 3 parts.
Etching reagent of the present invention is silicofluoric acid, described gelifying agent is polymine, described mineral filler is magnesium silicofluoride, described permeate agent is nonionogenic tenside, is specially one or more in fatty alcohol-polyoxyethylene ether, alkyl alcohol ethoxylates or cocoanut fatty acid diethanolamide.
The preparation method of acid-washing stainless steel passivation cream of the present invention, it is characterized in that mainly comprising the following steps: take raw material according to following proportioning: etching reagent 10-30 part, passivator 20-60 part, gelifying agent 10-30 part, mineral filler 40-60 part and permeate agent 1-5 part, the raw material taken is joined in tetrafluoroethylene reactor, linking agent is added after stirring and dissolving, wherein the add-on of linking agent is the 10%-20% of gelifying agent weight, then continues to stir static i.e. obtained g., jelly-like acid-washing stainless steel passivation cream.
Linking agent of the present invention is epoxy chloropropane.
Acid-washing stainless steel passivation cream of the present invention in use not releasing hydrogen fluoric acid, little to environmental hazard, do not hinder skin, ensure that the health of workmen and effectively remove the various weld seams of stainless steel surface, oxide skin and rusty stain, is the efficient product of a kind of environmental protection.
Embodiment
Embodiment
Raw material (kilogram) is taken according to following proportioning:
1, silicofluoric acid 10, nitric acid 60, polymine 30, magnesium silicofluoride 40, fatty alcohol-polyoxyethylene ether 1;
2, silicofluoric acid 10, nitric acid 30, polymine 20, magnesium silicofluoride 35, alkyl alcohol ethoxylates 3;
3, silicofluoric acid 30, nitric acid 20, polymine 10, magnesium silicofluoride 60, cocoanut fatty acid diethanolamide 5.
Production method is as follows:
The raw material taken is joined in tetrafluoroethylene reactor, linking agent epoxy chloropropane is added after stirring and dissolving, wherein the addition of epoxy chloropropane is the 10%-20% of polymine weight, after continuing to stir 20min, be circulated in the parcel bottling of 1 kilogram, leave standstill after 1 hour g., jelly-like, prepared by so far acid-washing stainless steel passivation cream.
Silicofluoric acid, as etching reagent, does not in use discharge hydrogen fluoride, avoids and works the mischief to workmen, and can effectively solve the problem lost efficacy in product put procedure.Magnesium silicofluoride, as mineral filler, needs in summer the quality increasing magnesium silicofluoride, to increase the viscosity of product, needs the quality reducing magnesium silicofluoride in the winter time, to reduce the viscosity of product.Permeate agent is that nonionogenic tenside is as one or more in fatty alcohol-polyoxyethylene ether, alkyl alcohol ethoxylates or cocoanut fatty acid diethanolamide, adding permeate agent is surface tension in order to reduce between creamy product and workpiece, to increase speed of response.
Using method:
1, first by clean for stainless steel surface oily waste treatment;
2, dip with brush the surface that this product is applied in position to be cleaned, make product thickness be more than 2 millimeters, keep 15-30min;
3, with sodium carbonate or calcium hydroxide dilute solution cleaning workpiece surface;
4, finally workpiece is rinsed with clear water, to the pH value of scavenging solution close to neutrality.
Grade estimation and inspection:
1, acid wash passivation rear surface should be uniform silvery white, does not have obvious evidence of corrosion, and welded seam area oxide skin is removed thoroughly, without the spot of uneven color.
2, be deployed into solution with 3 milliliters of nitric acid+1 gram of Tripotassium iron hexacyanide+50 milliliters of clear water, be then diluted to 100 milliliters with clear water, be configured to testing reagent, the filter paper of dipped reagent is attached on workpiece, in 30 seconds, do not occur Bluepoint.
3,8 grams of copper sulfate are dissolved in 500 ml distilled waters, add 2-3 milliliter sulfuric acid, then the solution of configuration is dripped in passivation workpiece surface, keep moistening, separated out without copper in 6 minutes.
Claims (4)
1. an acid-washing stainless steel passivation cream, it is characterized in that the component primarily of following weight part forms: etching reagent 10-30 part, passivator 20-60 part, gelifying agent 10-30 part, mineral filler 40-60 part and permeate agent 1-5 part, described etching reagent is silicofluoric acid, passivator is nitric acid, gelifying agent is polymine, mineral filler is magnesium silicofluoride, permeate agent is nonionogenic tenside, is specially one or more in fatty alcohol-polyoxyethylene ether, alkyl alcohol ethoxylates or cocoanut fatty acid diethanolamide.
2. acid-washing stainless steel passivation cream according to claim 1, is characterized in that the component primarily of following weight part forms: 10 parts, etching reagent, passivator 30 parts, gelifying agent 20 parts, mineral filler 35 parts and permeate agent 3 parts.
3. the preparation method of an acid-washing stainless steel passivation cream according to claim 1, it is characterized in that mainly comprising the following steps: take raw material according to following weight proportion: etching reagent 10-30 part, passivator 20-60 part, gelifying agent 10-30 part, mineral filler 40-60 part and permeate agent 1-5 part, the raw material taken is joined in tetrafluoroethylene reactor, linking agent is added after stirring and dissolving, wherein the add-on of linking agent is the 10%-20% of gelifying agent weight, then continues to stir static i.e. obtained g., jelly-like acid-washing stainless steel passivation cream.
4. the preparation method of acid-washing stainless steel passivation cream according to claim 3, is characterized in that: described linking agent is epoxy chloropropane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310148518.5A CN103225087B (en) | 2013-04-26 | 2013-04-26 | Stainless steel pickling passivation paste and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310148518.5A CN103225087B (en) | 2013-04-26 | 2013-04-26 | Stainless steel pickling passivation paste and preparation method thereof |
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| CN103225087A CN103225087A (en) | 2013-07-31 |
| CN103225087B true CN103225087B (en) | 2015-04-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112553634A (en) * | 2020-10-30 | 2021-03-26 | 哈尔滨哈飞航空工业有限责任公司 | Ointment and passivation paste for stainless steel brush coating passivation and preparation method thereof |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820774B (en) * | 2014-02-26 | 2016-08-17 | 苏州禾川化学技术服务有限公司 | A kind of high grade of transparency high viscosity acid-washing stainless steel passivation cream and compound method thereof |
| CN104962910A (en) * | 2015-06-26 | 2015-10-07 | 合肥长兴汽车配件有限公司 | Rust-proof treatment method for stainless-steel welding joint |
| CN104911576A (en) * | 2015-07-02 | 2015-09-16 | 常熟风范电力设备股份有限公司 | Chrome-free passivant for hot-dip galvanized steel sheet and preparation method thereof |
| CN105018948B (en) * | 2015-07-22 | 2018-07-24 | 中冶南方工程技术有限公司 | A kind of 304 austenitic stainless steel acid washing method of hot rolling |
| CN107012472A (en) * | 2017-03-23 | 2017-08-04 | 合肥协耀玻璃制品有限公司 | A kind of passivating agent for acid-washing stainless steel and preparation method thereof |
| CN106917095A (en) * | 2017-03-23 | 2017-07-04 | 合肥协耀玻璃制品有限公司 | A kind of acid-washing stainless steel passivation cream and preparation method thereof |
| CN106939420A (en) * | 2017-03-23 | 2017-07-11 | 合肥协耀玻璃制品有限公司 | A kind of passivation for stainless steel liquid and its passivation technology |
| CN107268000A (en) * | 2017-07-10 | 2017-10-20 | 南京中车浦镇城轨车辆有限责任公司 | A kind of acid-washing stainless steel passivation cream and preparation method thereof and application method |
| CN107268002A (en) * | 2017-08-04 | 2017-10-20 | 苏州吉利不锈钢制品有限公司 | A kind of 304 passivating agent for acid-washing stainless steel and preparation method thereof |
| CN107488858A (en) * | 2017-08-04 | 2017-12-19 | 苏州吉利不锈钢制品有限公司 | A kind of austenitic stainless steel passivating agent for acid-washing and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1004212B (en) * | 1986-07-07 | 1989-05-17 | 上海大明铁工厂 | Acid washing-passivating paste for stainless steel |
| CN1029862C (en) * | 1991-06-08 | 1995-09-27 | 孙永春 | Chemical method for removing oxidized layer of stainless steel |
| CN1038436C (en) * | 1994-05-04 | 1998-05-20 | 孙永春 | Pickling paste for stainless steel |
| JP4982124B2 (en) * | 2006-07-10 | 2012-07-25 | 朝日化学工業株式会社 | Pickling method for metal materials |
| DE102007010538A1 (en) * | 2007-03-05 | 2008-09-11 | Poligrat Gmbh | Process for the thermochemical passivation of stainless steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112553634A (en) * | 2020-10-30 | 2021-03-26 | 哈尔滨哈飞航空工业有限责任公司 | Ointment and passivation paste for stainless steel brush coating passivation and preparation method thereof |
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