CN108707959A - A kind of neutral environmentally friendly electrochemistry rust remover and technique for applying - Google Patents
A kind of neutral environmentally friendly electrochemistry rust remover and technique for applying Download PDFInfo
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- CN108707959A CN108707959A CN201810304188.7A CN201810304188A CN108707959A CN 108707959 A CN108707959 A CN 108707959A CN 201810304188 A CN201810304188 A CN 201810304188A CN 108707959 A CN108707959 A CN 108707959A
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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 30
- 230000007935 neutral effect Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000005518 electrochemistry Effects 0.000 title 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- -1 ferrous metals Chemical class 0.000 claims abstract description 13
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 9
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims abstract description 9
- 235000010234 sodium benzoate Nutrition 0.000 claims abstract description 9
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 9
- 239000001509 sodium citrate Substances 0.000 claims abstract description 9
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 8
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 8
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 229940057950 sodium laureth sulfate Drugs 0.000 claims abstract description 5
- SXHLENDCVBIJFO-UHFFFAOYSA-M sodium;2-[2-(2-dodecoxyethoxy)ethoxy]ethyl sulfate Chemical compound [Na+].CCCCCCCCCCCCOCCOCCOCCOS([O-])(=O)=O SXHLENDCVBIJFO-UHFFFAOYSA-M 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 239000003795 chemical substances by application Substances 0.000 abstract description 10
- 239000002253 acid Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003595 mist Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 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 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 208000032544 Cicatrix Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010039580 Scar Diseases 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- SMVRDGHCVNAOIN-UHFFFAOYSA-L disodium;1-dodecoxydodecane;sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC SMVRDGHCVNAOIN-UHFFFAOYSA-L 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 208000014745 severe cutaneous adverse reaction Diseases 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
- C25F1/06—Iron or steel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
本发明公开了一种中性环保电化学除锈剂及应用工艺，属于金属除锈剂的技术领域。本发明的除锈剂由柠檬酸、柠檬酸钠、硫酸铵、EDTA、苯甲酸钠、月桂醇聚醚硫酸酯钠、三乙醇胺、去离子水组成；其应用工艺为：阳极为工件，阴极：不锈钢板，t=1～5min,i=1～10A/dm2,T=15～45℃。该除锈剂具有除锈、除氧化皮迅速，既可以适用于吊挂式工件除锈、除氧化皮，也可适合于大型卷带式带钢去除氧化皮，生产工艺简单并对金属基体腐蚀小；既适合黑色金属也适合有色金属的除锈除氧化皮，适用范围广；同时除锈液无酸雾挥发，对人体无害、废水处理简单。The invention discloses a neutral environment-friendly electrochemical rust remover and an application process, belonging to the technical field of metal rust removers. Rust remover of the present invention is made up of citric acid, sodium citrate, ammonium sulfate, EDTA, sodium benzoate, sodium laureth sulfate, triethanolamine, deionized water; Its application process is: anode is workpiece, cathode: stainless steel plate, t=1～5min, i=1～10A/dm2, T=15～45℃. The derusting agent has rapid derusting and descaling properties. It can be used for descaling and descaling of hanging workpieces, and it is also suitable for removing scales of large-scale coiled strip steel. The production process is simple and it does not corrode the metal substrate. Small; it is suitable for both ferrous and non-ferrous metals to remove rust and scale, and has a wide range of applications; at the same time, the rust removal liquid has no acid mist volatilization, is harmless to the human body, and the wastewater treatment is simple.
Description
技术领域technical field
本发明涉及金属除锈剂的技术领域，尤其涉及一种中性环保电化学除锈剂及其应用工艺。The invention relates to the technical field of metal rust removers, in particular to a neutral environment-friendly electrochemical rust remover and its application process.
背景技术Background technique
金属表面如钢铁表面的除锈、除氧化皮处理是钢铁表面在拉拔、冷轧、热镀、真空镀、电镀、磷化、氧化、涂装……等之前必须的前处理工序，这个前处理工序对后续工序的质量起到极其重要的关键技术作用。目前对于钢铁表面的除锈处理方式大致有两种：机械处理（如：喷砂、磨抛光）、化学处理（如： 酸洗），其中，机械处理因没有废水排放，生产方便，目前仍然是很多小工件、超大设施的重要除锈处理方式，然而，因该处理方式耗时长，成本高，所以其应用受到很大的限制。化学除锈处理方式因其操作简便，成本低且效果较好，所以应用较广，由于目前被普遍采用的化学除锈处理中用到大量的酸液,除锈液容易造成钢铁本身发生氢脆，使钢铁材料强度降低；同时除锈后的钢铁表面容易发生过腐蚀，其产生的大量酸雾和废水处理很难，对环境造成了严重危害。且该类除锈处理的方式主要适用于对钢铁，铸铁等黑色金属表面的处理，而对于其他金属如铝、铜及青铜等金属的除锈不能很好的应用，使用范围小。此外，近几年市场上出现一种环保型超声波除锈技术，因其无酸雾挥发，对人体无害所以受到人们的重视，但是它有三个缺点：1.是这种除锈液除氧化皮，必须要超声波，超声波功率一大，噪音对整个工厂都有影响。2. 该超声波除锈液除氧化皮时间长，效果差，一般至少10分钟以上，不适合大批量的钢带连续去氧化皮的生产。3.该超声波除锈液用一段时间后，铁离子达到一定量后就很容易结块，一旦结块整个槽子都是果冻状，清理很麻烦，而且被络合的铁离子无法分离，除锈液很难再生，所以这种技术把用户都搞怕了，只要一听说超声波除锈就怕。Derusting and descaling treatment of metal surfaces such as steel surfaces is a necessary pretreatment process for steel surfaces before drawing, cold rolling, hot galvanizing, vacuum plating, electroplating, phosphating, oxidation, coating...etc. The treatment process plays an extremely important key technical role in the quality of subsequent processes. At present, there are roughly two methods of derusting treatment for steel surfaces: mechanical treatment (such as sandblasting, grinding and polishing), and chemical treatment (such as: pickling). Among them, mechanical treatment is still the preferred method because there is no waste water discharge and convenient production. It is an important derusting treatment method for many small workpieces and super-large facilities. However, due to the long time-consuming and high cost of this treatment method, its application is greatly restricted. The chemical derusting treatment method is widely used because of its simple operation, low cost and good effect. Because the currently widely used chemical derusting treatment uses a large amount of acid solution, the derusting solution is likely to cause hydrogen embrittlement of the steel itself. , so that the strength of the steel material is reduced; at the same time, the surface of the steel after derusting is prone to over-corrosion, and the large amount of acid mist and wastewater produced by it are difficult to treat, causing serious harm to the environment. And this type of rust removal treatment is mainly suitable for the treatment of ferrous metal surfaces such as steel and cast iron, but it cannot be well applied to the rust removal of other metals such as aluminum, copper and bronze, and its application range is small. In addition, an environmentally friendly ultrasonic derusting technology has appeared on the market in recent years. It has attracted people's attention because it has no acid mist volatilization and is harmless to the human body. However, it has three disadvantages: 1. For leather, ultrasonic waves are necessary. The power of ultrasonic waves is high, and the noise will affect the entire factory. 2. The ultrasonic descaling solution takes a long time to remove scale, and the effect is poor, generally at least 10 minutes, and is not suitable for the production of large-scale continuous descaling of steel strips. 3. After using the ultrasonic derusting solution for a period of time, the iron ions will easily agglomerate after reaching a certain amount. Once agglomerated, the whole tank is in the shape of jelly, which is very troublesome to clean, and the complexed iron ions cannot be separated, and the rust removal Liquid is difficult to regenerate, so this technology scares users, as long as they hear about ultrasonic rust removal.
发明内容Contents of the invention
本发明的目的是为了克服上述现有技术的缺点，提供一种中性环保电化学除锈剂及其应用工艺，该中性环保电化学除锈剂由柠檬酸、柠檬酸钠、硫酸铵、EDTA、苯甲酸钠、月桂醇聚醚硫酸酯钠、三乙醇胺、去离子水组成，具有除锈、除氧化皮迅速，既可以适用于吊挂式工件除锈、除氧化皮，也可适合于大型卷带式带钢去除氧化皮，生产工艺简单并对金属基体腐蚀小；既适合黑色金属也适合有色金属的除锈除氧化皮，适用范围广；同时除锈液无酸雾挥发，对人体无害、废水处理简单。The purpose of the present invention is in order to overcome the shortcoming of above-mentioned prior art, a kind of neutral environment-friendly electrochemical rust remover and its application process are provided, this neutral environment-friendly electrochemical rust remover is made of citric acid, sodium citrate, ammonium sulfate, Composed of EDTA, sodium benzoate, sodium laureth sulfate, triethanolamine, and deionized water, it can remove rust and scale quickly, and can be used for rust removal and scale removal of hanging workpieces, as well as large Roll-type strip steel removes scale, the production process is simple and has little corrosion to the metal substrate; it is suitable for both ferrous metals and non-ferrous metals to remove rust and scale, and has a wide range of applications; at the same time, the descaling liquid has no acid mist volatilization and is harmless to the human body. Harmful, waste water treatment is simple.
本发明解决其技术问题所采用的技术方案是：一种中性环保电化学除锈剂，由柠檬酸、柠檬酸钠、硫酸铵、EDTA、苯甲酸钠、月桂醇聚醚硫酸酯钠、三乙醇胺、去离子水组成。The technical scheme that the present invention solves its technical problem is: a kind of neutral environment-friendly electrochemical derusting agent, is made of citric acid, sodium citrate, ammonium sulfate, EDTA, sodium benzoate, sodium lauryl ether sulfate, triethanolamine , Deionized water composition.
优选地，如上所述的一种中性环保电化学除锈剂，由下列质量份数的原料配方组成:柠檬酸20～50份，柠檬酸钠20～50份，硫酸铵10～30份，EDTA 2～4份，苯甲酸钠3～6份，月桂醇聚醚硫酸酯钠0.5～2份，三乙醇胺0.5-3份，去离子水65～85份。Preferably, a neutral environment-friendly electrochemical rust remover as described above is composed of the following raw material formula in parts by mass: 20-50 parts of citric acid, 20-50 parts of sodium citrate, 10-30 parts of ammonium sulfate, 2-4 parts of EDTA, 3-6 parts of sodium benzoate, 0.5-2 parts of sodium laureth sulfate, 0.5-3 parts of triethanolamine, 65-85 parts of deionized water.
一种中性环保电化学除锈剂的电解除锈工艺方案是：阳极为工件，阴极：不锈钢板，t=1～5min,i=1～10A/dm2, T=15～45℃。The electrolytic derusting process scheme of a neutral environmental protection electrochemical derusting agent is: the anode is the workpiece, the cathode is a stainless steel plate, t=1～5min, i=1～10A/dm2, T=15～45℃.
优选地，如上所述的一种中性环保电化学除锈剂的电解除锈工艺，所述的工件为黑色金属、有色金属。Preferably, in the electrolytic derusting process of a neutral environment-friendly electrochemical derusting agent as described above, the workpieces are ferrous metals and non-ferrous metals.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
1、本发明提供了一种中性环保电化学除锈剂，该中性环保电化学除锈剂具有除锈、除氧化皮迅速，既可以适用于吊挂式工件除锈、除氧化皮，也可适合于大型卷带式带钢去除氧化皮，生产工艺简单并对金属基体腐蚀小。1. The present invention provides a neutral environment-friendly electrochemical rust remover. The neutral environment-friendly electrochemical rust remover has rapid rust removal and scale removal, and can be applied to rust removal and scale removal of hanging workpieces. It is also suitable for descaling of large coiled strip steel, the production process is simple and the corrosion to the metal matrix is small.
2、该中性环保电化学除锈剂既适合钢铁等黑色金属的除锈除氧化皮，也适合有色金属（如铝合金、锌合金…等）的除锈除氧化皮，适用范围广。2. The neutral environment-friendly electrochemical descaling agent is not only suitable for derusting and descaling of ferrous metals such as iron and steel, but also suitable for descaling and descaling of non-ferrous metals (such as aluminum alloys, zinc alloys, etc.), and has a wide range of applications.
3、该中性环保电化学除锈剂不含任何硫酸、盐酸等强腐蚀性原料，不含P、F、 NO2、NO3、 CN、重金属等危害环境的任何有毒害成分，同时除锈液无酸雾挥发，对人体无害，是一种完全环保的全新产品。3. The neutral environment-friendly electrochemical rust remover does not contain any strong corrosive raw materials such as sulfuric acid and hydrochloric acid, and does not contain any toxic and harmful components such as P, F, NO 2 , NO 3 , CN, heavy metals, etc., and can remove rust at the same time The liquid has no acid mist volatilization and is harmless to the human body. It is a brand-new product that is completely environmentally friendly.
具体实施方式Detailed ways
以下是本发明的具体实施例，对本发明的技术方案做进一步描述，但本发明的内容不仅仅局限于实施例所述的范围，凡是不背离本发明构思的改变或等同替代均包括在本发明的保护范围之内。The following are specific examples of the present invention, further describing the technical solutions of the present invention, but the content of the present invention is not limited to the scope described in the examples, and all changes or equivalent substitutions that do not deviate from the concept of the present invention are included in the present invention within the scope of protection.
实施例1Example 1
一种中性环保电化学除锈剂，由以下质量百分比的原料配方组分组成：柠檬酸20份，柠檬酸钠20份，硫酸铵10份，EDTA 2份，苯甲酸钠3份，月桂醇聚醚硫酸酯钠0.5份，三乙醇胺0.5份，去离子水65份。A neutral environment-friendly electrochemical rust remover, composed of the following raw material formula components in mass percentage: 20 parts of citric acid, 20 parts of sodium citrate, 10 parts of ammonium sulfate, 2 parts of EDTA, 3 parts of sodium benzoate, polylauryl alcohol 0.5 parts of sodium ether sulfate, 0.5 parts of triethanolamine, and 65 parts of deionized water.
一种中性环保电化学除锈剂的电解除锈工艺方案是：阳极为工件，阴极：不锈钢板，t=5min,i=1A/dm2，T=15℃。实施工件为：锌合金工件。The electrolytic derusting process scheme of a neutral environmental protection electrochemical derusting agent is: the anode is the workpiece, the cathode is a stainless steel plate, t=5min, i=1A/dm2, T=15℃. The implementation workpiece is: zinc alloy workpiece.
实施例2Example 2
一种中性环保电化学除锈剂，由以下质量百分比的原料配方组分组成: 柠檬酸50份，柠檬酸钠50份，硫酸铵30份，EDTA 4份，苯甲酸钠6份，月桂醇聚醚硫酸酯钠2份，三乙醇胺3份，去离子水85份。A kind of neutral environment-friendly electrochemical descaling agent, is made up of the raw material formula component of following mass percent: 50 parts of citric acid, 50 parts of sodium citrate, 30 parts of ammonium sulfate, 4 parts of EDTA, 6 parts of sodium benzoate, polylauryl alcohol 2 parts of sodium ether sulfate, 3 parts of triethanolamine, 85 parts of deionized water.
一种中性环保电化学除锈剂的电解除锈工艺方案是：阳极为工件，阴极：不锈钢板，t=1min,i=10A/dm2，T=45℃。实施工件为：冷轧钢板。The electrolytic derusting process scheme of a neutral and environmentally friendly electrochemical derusting agent is: the anode is the workpiece, the cathode is a stainless steel plate, t=1min, i=10A/dm2, T=45°C. The implementation workpiece is: cold-rolled steel plate.
实施例3Example 3
一种中性环保电化学除锈剂，由以下质量百分比的原料配方组分组成: 柠檬酸35份，柠檬酸钠35份，硫酸铵20份，EDTA 3份，苯甲酸钠5份，月桂醇聚醚硫酸酯钠1.3份，三乙醇胺1.8份，去离子水75份。A kind of neutral environment-friendly electrochemical descaling agent, is made up of the raw material formula component of following mass percent: 35 parts of citric acid, 35 parts of sodium citrate, 20 parts of ammonium sulfate, 3 parts of EDTA, 5 parts of sodium benzoate, polylauryl alcohol 1.3 parts of sodium ether sulfate, 1.8 parts of triethanolamine, and 75 parts of deionized water.
一种中性环保电化学除锈剂的电解除锈工艺方案是：阳极为工件，阴极：不锈钢板，t=3min,i=6A/dm2，T=30℃。实施工件为：铝合金工件。The electrolytic derusting process scheme of a neutral and environmentally friendly electrochemical derusting agent is: the anode is the workpiece, the cathode is a stainless steel plate, t=3min, i=6A/dm2, T=30°C. The implementation workpiece is: aluminum alloy workpiece.
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| CN112747992A (en) * | 2020-12-31 | 2021-05-04 | 东北大学 | Metallographic structure display method of Mg-containing 440C corrosion-resistant stainless bearing steel based on three-step method |
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