CN108220972A - A kind of waterborne anti-rust medium for galvanized welded pipe - Google Patents
A kind of waterborne anti-rust medium for galvanized welded pipe Download PDFInfo
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- CN108220972A CN108220972A CN201810058917.5A CN201810058917A CN108220972A CN 108220972 A CN108220972 A CN 108220972A CN 201810058917 A CN201810058917 A CN 201810058917A CN 108220972 A CN108220972 A CN 108220972A
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- Prior art keywords
- acid
- welded pipe
- rust
- parts
- galvanized welded
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- -1 triazole compound Chemical class 0.000 claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 14
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 150000002763 monocarboxylic acids Chemical class 0.000 claims abstract description 5
- 150000003628 tricarboxylic acids Chemical class 0.000 claims abstract description 5
- 150000001991 dicarboxylic acids Chemical class 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000012964 benzotriazole Substances 0.000 claims description 6
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 4
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 claims description 4
- NMTDPTPUELYEPL-UHFFFAOYSA-M sodium;heptanoate Chemical compound [Na+].CCCCCCC([O-])=O NMTDPTPUELYEPL-UHFFFAOYSA-M 0.000 claims description 4
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims description 3
- GIAFURWZWWWBQT-UHFFFAOYSA-N 2-(2-aminoethoxy)ethanol Chemical compound NCCOCCO GIAFURWZWWWBQT-UHFFFAOYSA-N 0.000 claims description 3
- YPIFGDQKSSMYHQ-UHFFFAOYSA-N 7,7-dimethyloctanoic acid Chemical compound CC(C)(C)CCCCCC(O)=O YPIFGDQKSSMYHQ-UHFFFAOYSA-N 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 229920000305 Nylon 6,10 Polymers 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- 229940043237 diethanolamine Drugs 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229940005574 sodium gluconate Drugs 0.000 claims description 3
- 235000012207 sodium gluconate Nutrition 0.000 claims description 3
- 239000000176 sodium gluconate Substances 0.000 claims description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 2
- WMRCTEPOPAZMMN-UHFFFAOYSA-N 2-undecylpropanedioic acid Chemical compound CCCCCCCCCCCC(C(O)=O)C(O)=O WMRCTEPOPAZMMN-UHFFFAOYSA-N 0.000 claims description 2
- XZOYHFBNQHPJRQ-UHFFFAOYSA-N 7-methyloctanoic acid Chemical compound CC(C)CCCCCC(O)=O XZOYHFBNQHPJRQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 claims description 2
- 229960002446 octanoic acid Drugs 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- 150000003852 triazoles Chemical class 0.000 claims description 2
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims 3
- 150000001735 carboxylic acids Chemical class 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 23
- 238000003756 stirring Methods 0.000 abstract description 18
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 231100001261 hazardous Toxicity 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 10
- 229910052725 zinc Inorganic materials 0.000 description 10
- 239000011701 zinc Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000011651 chromium Substances 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 150000001565 benzotriazoles Chemical class 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- ZDWPBMJZDNXTPG-UHFFFAOYSA-N 2h-benzotriazol-4-amine Chemical class NC1=CC=CC2=C1NN=N2 ZDWPBMJZDNXTPG-UHFFFAOYSA-N 0.000 description 2
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000013556 antirust agent Substances 0.000 description 2
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical group NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical group [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical class C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical group C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical group NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229940114081 cinnamate Drugs 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000000157 electrochemical-induced impedance spectroscopy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002828 nitro derivatives Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical group [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a kind of waterborne anti-rust medium for galvanized welded pipe, every 100 parts of the waterborne anti-rust medium for galvanized welded pipe includes the component of following weight parts：5~15 parts of Long carbon chain organic carboxyl acid, 1~5 part of triazole compound, 10~20 parts of organic acid sodium salt, 10~20 parts of alcamine compound, water surplus, the Long carbon chain organic carboxyl acid are any one in monocarboxylic acid, dicarboxylic acids, tricarboxylic acid.The preparation method of the waterborne anti-rust medium is：By 10~20 parts of alcamine compound, it adds in suitable quantity of water, 5~15 parts of Long carbon chain organic carboxyl acid is gradually added into, after stirring and dissolving, by 1~5 part of triazole compound, 10~20 parts of organic acid sodium salt, it is slowly added to, stirs while adding, until being completely dissolved transparent, the water of surplus is eventually adding, stirring and dissolving is uniform.The anti-corrosion that the waterborne anti-rust medium is suitable for galvanized welded pipe is protected, non-hazardous to environment to human body nontoxicity, has many advantages, such as reasonable, economic, environmental protection.
Description
Technical field
The present invention relates to a kind of rust preventing medium more particularly to a kind of waterborne anti-rust media for galvanized welded pipe.
Background technology
Galvanized welded pipe refers to hot rolled steel plate by galvanizing by dipping, then zinc-plated roll bending slitting is used high frequency into zinc-plated steel band
The tubing that electric welding forms is widely used in machine-building, electronics, chemical industry, building, haberdashery and hardware, household electrical appliance, traffic fortune
All conglomeraties such as defeated, national defense construction.This welded tube in process, due to galvanized sheet incision contacts air and water, is easily led
Its surface is caused the corrosions situations such as hickie, length " white hair " occur, surface corrosion product is mainly by Zn5Cl2 (OH) 8, Zn5 (CO3) 2
(OH) 6 and water composition, the crystallization of these substances can cause the surface of a large amount of powderies to deposit, the phenomenon that so as to form white rust.Corrosion
The generation of phenomenon may be since the corrosion of zinc causes, it is also possible to the reason of iron rust loses.So galvanized welded pipe is situated between with anti-corrosion
The development of matter must have good rust inhibition to zinc and iron simultaneously.
The country is not many to the research of aqueous zinc-plated antirust agent, is all to be had using a kind of to various metals mostly
The antirust agent of rust-proof effect is used as the corrosion inhibiter of zinc-plating material.The beginning of the sixties, benzotriazole act on brass antitarnish
To confirmation, the experimental results showed that, also there is certain inhibition effect to metals such as silver, silver coating, zinc, zinc coat, cadmium plating layers later
Fruit.Also to a variety of derivatives of benzotriazole such as methyl benzotriazole, 3 amino -1,2,3 benzotriazoles, double benzotriazoles carried out for the country later
Research, the study found that above-mentioned corrosion inhibiter all has various metals good protective effect.In addition to benzotriazole and its derivative with
Outside, chromate compound, adjacent nitro compound, cinnamate, borate, Thiourea, thiazole, glyoxaline compound are to a variety of
Non-ferrous metal and coating have certain corrosion inhibition.
The Rocca of Centre National de la Recherche Scientifique had found in 2006, can be with the variation of organic acid sodium salt concentration
Zinc surface generates a kind of effective resistant tarnishing anion, forms layer protecting film, so as to have the function that protect zinc.He passes through
Electrochemical method and electrochemical impedance spectroscopy etc. have studied adds in a certain concentration organic acid in the aeration of pH=8 refers to corroding medium
To the corrosion situation of zinc after sodium salt, according to analyses such as X ray, infrared spectrums the study found that zinc surface generation it is a thin layer of
Compact inorganic-organic film Zn5 (CH3 (CH2) 5COO) 2 (OH) 8 have effective rustproof property.2008, he studied again
The synergistic effect of organic acid sodium salt and methylbenzotrazole.
There are mainly two types of the antirusting methods that galvanized welded pipe processing factories many at present uses, first, welded tube machines
Afterwards, sealed anti-rust oil is smeared in surface of welded pipe, it is more using 901 type sealed anti-rust oils；Second is that using the passivator containing chromium so that
The Several Thiourea Derivatives on Zinc Plate Surface of galvanized welded pipe forms chromate conversion film layer, so as to play the effect of anti-corrosion.Both methods all exists
Certain drawbacks, using antirust oil, cost is higher, while there is removals for follow-up use of the presence of grease to galvanized welded pipe
The problem of oil film；Using agent containing chromium passivating, there is serious water pollution problems, are gradually forbidden to use at present.More than in view of
Defect, it is really necessary to design a kind of waterborne anti-rust medium for galvanized welded pipe.
Invention content
Institute of the invention is designed to provide a kind of waterborne anti-rust medium for galvanized welded pipe, which not only expires
The anti-corrosion requirement of sufficient galvanized welded pipe in process, while anti-corrosion of the galvanized welded pipe in storing process can also be met
It is required that.
In order to solve the above technical problems, the technical scheme is that：A kind of waterborne anti-rust medium for galvanized welded pipe,
The every 100 parts waterborne anti-rust medium for being used for galvanized welded pipe includes the component of following weight parts：Long carbon chain organic carboxyl acid 5~15
Part, 1~5 part of triazole compound, 10~20 parts of organic acid sodium salt, 10~20 parts of alcamine compound, water surplus is described
Long carbon chain organic carboxyl acid is any one in monocarboxylic acid, dicarboxylic acids, tricarboxylic acid.
Further improvement of the invention is as follows：
Further, the monocarboxylic acid is any one in caprylic acid, isononanoic acid, neodecanoic acid.
Further, the dicarboxylic acids is any one in decanedioic acid, eleven carbon diacids, dodecanedicarboxylic acid
Kind.
Further, the tricarboxylic acid is any one in 21 carbon ternary acids, 22 carbon ternary acids.
Further, the triazole compound for benzotriazole, methyl benzotriazazole, 3 amino -1,2,3
Any one in benzotriazole, double benzotriazoles.
Further, it is sodium sulfonate in the organic acid sodium salt, sodium gluconate, any one in positive enanthic acid sodium.
Further, the alcamine compound is monoethanolamine, in diethanol amine, triethanolamine, diglycolamine
Any one.
This is prepared for the waterborne anti-rust medium of galvanized welded pipe using conventional mixing mode.Every 100 parts
Can be for the specific preparation method of waterborne anti-rust medium of galvanized welded pipe：By 10~20 parts of alcamine compound, add in
In suitable water, 5~15 parts of Long carbon chain organic carboxyl acid is gradually added into, after stirring and dissolving is uniform, by triazole compound 1~5
Part, 10~20 parts of organic acid sodium salt is slowly added to, stirs while adding, transparent up to being completely dissolved, and is eventually adding surplus
Water, stirring and dissolving are uniform.
The physical and chemical index of the present invention is as follows：
Appearance：Colourless transparent liquid
PH value (a concentration of 10% aqueous solution)：8.5~8.8
Density (20 DEG C) g/ml：1.16~1.20
During normal use, by the present invention rust preventing medium be diluted with water 8-15 times, it is preferable to use deionized water into
Row dilution, preferred extension rate is 10 times.At normal temperatures, the galvanized welded pipe after processing is immersed in rust preventing medium, if
Bundled galvanized welded pipe in immersion in use, needing to decontrol bundling belt, allows galvanized welded pipe comprehensively to touch rust preventing medium,
Soaking time is 3-5 minute, you can galvanized welded pipe is taken out into rust preventing medium, the moisture on galvanized welded pipe surface drains volatilize after
Packaging and warehousing.This is used for the waterborne anti-rust medium of galvanized welded pipe, in galvanized welded pipe is processed and is stored, can effectively prevent plating
The corrosion of zinc welded tube is effectively avoided using antirust oil, and there are the higher and follow-up use removal galvanized welded pipe surface oils of cost
The problem of film；With use agent containing chromium passivating, there is serious water pollution problems.It is worth processing enterprise's progress in galvanized welded pipe
It promotes, in addition market capacity also can be larger, and economic benefits comparison is notable.
Compared with the prior art, beneficial effects of the present invention：
(1) safety and environmental protection.The rust preventing medium, which uses, common are machine compound combination, without noxious material, use
It volatilizees in the process without poisonous and harmful substance, it is substantially non-hazardous to production scene and operating personnel.It avoids using in being formulated simultaneously
There are the chromate and other noxious materials of pollution to water body, waste liquid can discharge after sewage disposal.
(2) anti-corrosion ability is strong.Show there is good anti-corrosion to protect galvanized welded pipe by many experiments.
(3) it is easy to use, it is at low cost.The rust preventing medium using when only need galvanized welded pipe being dipped into antirust solution, so that it may
To reach good anti-corrosion effect, corrosion protection, more economical and saving are carried out relative to antirust oil is used.
Specific embodiment
Embodiment one
By diglycolamine 20g, add in 30g water, neodecanoic acid 7g is gradually added into, after stirring and dissolving is uniform, by three nitrogen of benzo
Azoles 2g, sodium sulfonate 10g, is slowly added to, and stirs while adding, transparent up to being completely dissolved, and is eventually adding the 30g water of surplus,
Stirring and dissolving uniformly can obtain waterborne anti-rust media of the required 100g for galvanized welded pipe.
Embodiment two
By triethanolamine 15g, add in 30g water, decanedioic acid 5g is gradually added into, after stirring and dissolving is uniform, by methyl benzo
Triazole 1g, sodium gluconate 15g, is slowly added to, and stirs while adding, transparent up to being completely dissolved, and is eventually adding surplus
34g water, stirring and dissolving uniformly i.e. can obtain required 100g for galvanized welded pipe waterborne anti-rust medium.
Embodiment three
By diethanol amine 20g, add in 30g water, eleven carbon diacids 8g is gradually added into, after stirring and dissolving is uniform, by first
Base benzotriazole 3g, positive enanthic acid sodium 15g is slowly added to, stirs while adding, transparent up to being completely dissolved, and is eventually adding surplus
The 24g water of surplus, stirring and dissolving uniformly can obtain waterborne anti-rust media of the required 100g for galvanized welded pipe.
Example IV
By triethanolamine 20g, add in 20g water, be gradually added into 21 carbon ternary acid 10g, it, will after stirring and dissolving is uniform
3 amino -1,2,3 benzotriazole 2g, positive enanthic acid sodium 10g is slowly added to, stirs while adding, transparent up to being completely dissolved, and finally adds
Enter the 38g water of surplus, stirring and dissolving uniformly can obtain waterborne anti-rust media of the required 100g for galvanized welded pipe.
To better understand the essence of the present invention, prevent below by by four embodiments of the present invention using common 901
The comparative example one that is used as of rust oil, the comparative example two that the Zincing passivation agent for containing trivalent chromium and Cr VI is used as, carries out contrast test
To further illustrate anti-corrosion effect of the waterborne anti-rust medium to galvanized welded pipe that galvanized welded pipe is used for using this：
The above embodiment of the present invention deionized water is diluted 10 times, dilution is deployed into, two comparative examples is taken to carry out
The experiment of anti-corrosion ability.
Above each example, test material galvanized steel strap are tested with hanging slice method, area is 5 × 5cm, 2 are drawn in test zone ×
To judge the corrosion area percent on test film, rustproof property pair is carried out by rust area percentage for the grid of 2mm
Than.
Test procedure is as follows：
The first step：The dilution of the above embodiments and two comparative examples are separately added into the beaker of six same volumes
In.
Second step：The test material ground is put into above-mentioned beaker, each beaker is put into a piece of.
Third walks：It impregnates 5 minutes.
4th step：All test pieces are proposed, are dried.
5th step：Above-mentioned test piece is put into moisture-heat test-box, humidity 95%, temperature is 35 DEG C.
6th step：After placing 96h in moisture-heat test-box, the corrosion area that test piece calculate each test piece is taken out.
Result of the test is as shown in the table：
It was found from more than contrast test and result：This has galvanized welded pipe preferably for the waterborne anti-rust medium of galvanized welded pipe
Anti-corrosion effect, achieved the effect that original using antirust oil and agent containing chromium passivating.
The present invention is not limited to above-mentioned specific embodiment, those of ordinary skill in the art from above-mentioned design,
Without performing creative labour, the various transformation made are within the scope of the present invention.
Claims (7)
1. a kind of waterborne anti-rust medium for galvanized welded pipe, it is characterised in that this of every 100 parts is used for the aqueous of galvanized welded pipe
Rust preventing medium includes the component of following weight parts：5~15 parts of Long carbon chain organic carboxyl acid, 1~5 part of triazole compound are organic
10~20 parts of acid sodium-salt, 10~20 parts of alcamine compound, water surplus, the Long carbon chain organic carboxyl acid are monocarboxylic acid, two
Any one in first carboxylic acid, tricarboxylic acid.
2. it to be used for the waterborne anti-rust medium of galvanized welded pipe as described in claim 1, it is characterised in that the monocarboxylic acid is
Any one in caprylic acid, isononanoic acid, neodecanoic acid.
3. it to be used for the waterborne anti-rust medium of galvanized welded pipe as described in claim 1, it is characterised in that the dicarboxylic acids is
Any one in decanedioic acid, eleven carbon diacids, dodecanedicarboxylic acid.
4. it to be used for the waterborne anti-rust medium of galvanized welded pipe as described in claim 1, it is characterised in that the tricarboxylic acid is
Any one in 21 carbon ternary acids, 22 carbon ternary acids.
5. it to be used for the waterborne anti-rust medium of galvanized welded pipe as described in claim 1, it is characterised in that the triazole
Conjunction object is benzotriazole, methyl benzotriazazole, 3 amino -1,2, any one in 3 benzotriazoles, double benzotriazoles.
6. it to be used for the waterborne anti-rust medium of galvanized welded pipe as described in claim 1, it is characterised in that the organic acid sodium salt
In for sodium sulfonate, sodium gluconate, any one in positive enanthic acid sodium.
7. it to be used for the waterborne anti-rust medium of galvanized welded pipe as described in claim 1, it is characterised in that the alcamines chemical combination
Object is any one in monoethanolamine, diethanol amine, triethanolamine, diglycolamine.
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