CN104213127A - Heavy truck water tank corrosion inhibitor - Google Patents

Heavy truck water tank corrosion inhibitor Download PDF

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Publication number
CN104213127A
CN104213127A CN201310222722.7A CN201310222722A CN104213127A CN 104213127 A CN104213127 A CN 104213127A CN 201310222722 A CN201310222722 A CN 201310222722A CN 104213127 A CN104213127 A CN 104213127A
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CN
China
Prior art keywords
water tank
corrosion inhibitor
sodium
inhibiter
corrosion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310222722.7A
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Chinese (zh)
Inventor
胡朝霞
陈守文
冉冬琴
宋晖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lianyungang Research Institute Co Ltd Nanjing University Of Science & Technology
Original Assignee
Lianyungang Research Institute Co Ltd Nanjing University Of Science & Technology
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Application filed by Lianyungang Research Institute Co Ltd Nanjing University Of Science & Technology filed Critical Lianyungang Research Institute Co Ltd Nanjing University Of Science & Technology
Priority to CN201310222722.7A priority Critical patent/CN104213127A/en
Publication of CN104213127A publication Critical patent/CN104213127A/en
Pending legal-status Critical Current

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  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The invention discloses a heavy truck water tank corrosion inhibitor, which comprises the following components in percentage by weight: 1.50-2.40% of sodium nitrite, 1.20-1.50% of sodium nitrate, 1.20-1.50% of sodium molybdate, 1.20-1.50% of benzotriazole, 0.60-1.00% of sodium silicate, 1.00-2.00% of sebacic acid, 0.80-1.20% of sodium tetraborate, and the balance being deionized water. The corrosion inhibitor is mixed with a cooling liquid according to a weight ratio of 1:19 to provide long term protection on a heavy truck water tank.

Description

A kind of heavy-duty engine class vehicle water tank inhibiter
Technical field
The invention belongs to a kind of new formula of heavy truck water tank inhibiter.
Background technology
The sealing and circulating system that the water cooling system of engine of common heavy-duty engine class vehicle is made up of various metals such as steel, copper and aluminium, generally environmentally the change of temperature adopts anti-freeze cooling liquid or water as heat-eliminating medium.Heavy-duty engine load is large, duration of service is long, and Working environment is more severe compared with common locomotive, often gathers materials on the spot and adopts surface water or tap water as heat-eliminating medium.China is vast in territory, and greatly, therefore the burn into Seepage of vehicle motor coolant system is quite general, has a strong impact on the normal use of vehicle, sometimes even causes security incident for environment and condition of water quality difference.In order to improve the adaptability of heavy-duty engine to environment, the burn into seepage of engine-cooling system being solved and is very important.A kind of method that appropriate inhibiter is simple and feasible is added in heat-eliminating medium, especially develop one and both can be used for deicing fluid, may be used for again the inhibiter of ortho-water, just regional difference can be overcome, be applicable to different environment and condition of water quality, reach the object that all-season, north and south are general.
Containing the corrosive ion that multiple content is different in usual water, as chlorion, sulfate ion isoreactivity negatively charged ion, and the unhomogeneity of existing defects, impurity and solute etc. in metallic substance, therefore these active anions are easily adsorbed on some point of metallic surface, thus metallic surface passivating film is destroyed.Lack again from blunt ability once this layer of passive film is destroyed, metallic surface will be corroded.Now cracks of metal surface place presents active state, so easy formation activity-passivation corrosion cell, and corrosion forms spot corrosion toward depths development.
Secondly, if do not add any inhibition ingredient in heat-eliminating medium, have a strong impact on causing the heat transfer of cooling system.The rust deposite that metallic corrosion is formed or settling are attached to cooling water tank surface, or formation solid particulate is present in heat-eliminating medium, changes the heat transfer character of heat-eliminating medium, by hindering the heat transfer process of water tank, causes heat transfer property to decline.If heat-eliminating medium cannot take away enough heats, will cause indicating oven temp. of engine, machine oil can be made to go bad, and scaling loss and coking lose lubricity, destroy oil-bound film.Especially, when locomotive high-speed cruising, these solid particulates, by the circulation scouring water tank surface along with heat-eliminating medium, cause mechanical injuries, the metal oxide layer of failure surface, produce new corrosion activity point.
, when there is trace oxygen in media as well, oxidizing reaction slowly can be there is and generate organic acid in the system being heat-eliminating medium with ethylene glycol solution etc. if common.If do not neutralized, corrosion of metal will be caused.
In heat-eliminating medium, add appropriate inhibiter, layer protecting film will be formed in metallic surface, or react with the harmful ion in solution, whole system is played to the effect of protection.Common corrosion inhibitor formula forms by multiple inhibition ingredient is composite.Typical inhibiter composition comprises borate family, phosphoric acid salt, nitrites, Nitrates, silicates, mercaptobenzothiazole class, benzotriazole category etc.Except directly playing except corrosion inhibition, these chemical additives play the effect of buffering or basicity deposit simultaneously to system.Except selecting suitable corrosion inhibitor formula, also must ensure that each inhibiter has enough concentration in system.This depends primarily on the operational conditions of locomotive, the condition of water quality of the refrigerant of use, operating temperature and corresponding working time.In addition, along with the operation of system, inhibiter will be had an effect with metal or other material and consume, and cause the inhibiter content in system to reduce gradually, therefore must not timing non-quantitative add inhibiter.
In the refrigerating fulid that each important automobile production manufacturer or refrigerating fulid manufacturer provide in the world at present, all add inhibition ingredient.Generally speaking, common heavy truck refrigerating fulid adopts inorganic salt type inhibiter usually, and high-grade car often adopts the new formulation of type of organophosphonic acides inhibiter due to reasons such as technical know-hows, and the composition of inhibiter is also unexposed.Document 1(CN 102093851A) disclose a kind of anti-freezing solution for water tanks of automobiles for domestic middle-grade car and other all kinds of vehicle and compound method, this formula is mainly inorganic compounding, especially the region be suitable for weather is colder uses, and the effect being applied to heavy-duty engine class vehicle is not yet known.Document 2(CN 101302424A) disclose the deicing fluid that a kind of automobile cooling system carries out comprehensive multilayer protection; formula is based on organism; inorganic is auxiliary; organic acid adopts multi items compound; and abandon borate, borax, amine etc. and larger material has been affected on environment and personnel; but this formula is mainly for ethylene glycol antifreeze system, be applied to pony car water tank, practical application effect is not yet known.
Summary of the invention
The object of the present invention is to provide a kind of heavy-duty engine class vehicle water tank inhibiter.In order to solve the problem, corrosion inhibitor formula of the present invention according to mass percent, containing following component:
Sodium Nitrite 1.50-2.40 Water glass 0.60-1.00
SODIUMNITRATE 1.20-1.50 Sebacic acid 1.00-2.00
Sodium orthomolybdate 1.20-1.50 Sodium tetraborate 0.80-1.20
Benzotriazole 1.20-1.50 Deionized water All the other
In use, according to quality than inhibiter: cooling fluid=1:19 is added in cooling fluid.
Advantage of the present invention is: traditional radiator inhibiter, being that corrosion mitigating effect under coolant conditions is unsatisfactory, especially poorer for aluminum corrosion mitigating effect with water, causes aluminum have larger corrosion after treatment and tarnish.The corrosion inhibitor formula of the present invention's design has splendid corrosion inhibition for carbon steel, aluminium and copper product, and corrosion rate is much better than the requirement of national standard, and aluminum is in long-time test process, and light is as new.
Embodiment
The concrete technical scheme that the invention is further illustrated by the following examples, so that those skilled in the art understands the present invention further, and does not form the restriction to its right.
Embodiment
According to table 1 component design composition, the test of its corrosion inhibition is in table 2:
In this composition, do not consider the impact adding ethylene glycol or propylene glycol, in general, after containing ethylene glycol or glycerol, its corrodibility can be significantly less than the situation only containing water.
Table 1 water tank is with corrosion inhibiting and descaling agent formula table (one) (%)
Corrosion inhibition is tested
Corrosion inhibition carries out according to " engine coolant corrosion measurement method (glassware method) " (SH/T 0085-1991).Take deionized water as cooling fluid, add corrosion inhibiting and descaling agent according to 1:19 mass ratio.Measurement result is in table 2.
Table 2 corrosion inhibition measurement result
Comparative example
Corrosion inhibitor formula is in table 3.
Table 3 corrosion inhibitor formula (two) (%)
The same embodiment of corrosion inhibition testing method.Measurement result is in table 4.
Table 4 corrosion inhibition measurement result

Claims (1)

1. a heavy-duty engine class vehicle water tank inhibiter, it is characterized in that by mass percentage, comprise following component: Sodium Nitrite 1.50-2.40, SODIUMNITRATE 1.20-1.50, Sodium orthomolybdate 1.20-1.50, benzotriazole 1.20-1.50, water glass 0.60-1.00, sebacic acid 1.00-2.00, sodium tetraborate 0.80-1.20, all the other are deionized water, joined in cooling fluid by inhibiter use according to 5wt%.
CN201310222722.7A 2013-06-05 2013-06-05 Heavy truck water tank corrosion inhibitor Pending CN104213127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310222722.7A CN104213127A (en) 2013-06-05 2013-06-05 Heavy truck water tank corrosion inhibitor

Publications (1)

Publication Number Publication Date
CN104213127A true CN104213127A (en) 2014-12-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109207981A (en) * 2018-01-04 2019-01-15 福建浦汇科技发展有限公司 A kind of rotor manufacture inorganic agent, method for manufacturing rotor and the rotor of non-heated shelling
CN109518193A (en) * 2018-11-02 2019-03-26 海南大学 A kind of antirust solution and preparation method thereof containing sodium molybdate
CN112575332A (en) * 2020-12-11 2021-03-30 沈阳中科腐蚀控制工程技术中心 Novel inorganic compound corrosion inhibitor
CN113980658A (en) * 2021-11-24 2022-01-28 青岛莱伊迪光电科技有限公司 LEDUV cooling liquid and LEDUV equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1346396A (en) * 1999-02-26 2002-04-24 爱什股份有限公司 Monocarboxylic acid based antifreeze composition for diesel engines
CN1384862A (en) * 1999-10-29 2002-12-11 巴斯福股份公司 Antifreeze concentrates on the basis of dicarboxylic acids, molbdate and triazoles or thiazoles and coolant compositions containing these concentrates
CN101076912A (en) * 2005-03-02 2007-11-21 Cci株式会社 Coolant composition for fuel cell
CN101215460A (en) * 2008-01-03 2008-07-09 吉化集团吉林市星云工贸有限公司 Environment-friendly type long-acting automobile cooling liquid formulation and producing technique thereof
US20080283795A1 (en) * 2002-08-02 2008-11-20 Basf Aktiengesellschart Glycol-free aqueous antifreeze compositions comprising dicarboxylic acid salts
CN101955755A (en) * 2009-07-20 2011-01-26 比亚迪股份有限公司 Engine coolant
CN102093851A (en) * 2009-12-14 2011-06-15 江苏德美科技有限公司 Anti-freezing solution for water tanks of automobiles and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1346396A (en) * 1999-02-26 2002-04-24 爱什股份有限公司 Monocarboxylic acid based antifreeze composition for diesel engines
CN1384862A (en) * 1999-10-29 2002-12-11 巴斯福股份公司 Antifreeze concentrates on the basis of dicarboxylic acids, molbdate and triazoles or thiazoles and coolant compositions containing these concentrates
US20080283795A1 (en) * 2002-08-02 2008-11-20 Basf Aktiengesellschart Glycol-free aqueous antifreeze compositions comprising dicarboxylic acid salts
CN101076912A (en) * 2005-03-02 2007-11-21 Cci株式会社 Coolant composition for fuel cell
CN101215460A (en) * 2008-01-03 2008-07-09 吉化集团吉林市星云工贸有限公司 Environment-friendly type long-acting automobile cooling liquid formulation and producing technique thereof
CN101955755A (en) * 2009-07-20 2011-01-26 比亚迪股份有限公司 Engine coolant
CN102093851A (en) * 2009-12-14 2011-06-15 江苏德美科技有限公司 Anti-freezing solution for water tanks of automobiles and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109207981A (en) * 2018-01-04 2019-01-15 福建浦汇科技发展有限公司 A kind of rotor manufacture inorganic agent, method for manufacturing rotor and the rotor of non-heated shelling
CN109518193A (en) * 2018-11-02 2019-03-26 海南大学 A kind of antirust solution and preparation method thereof containing sodium molybdate
CN109518193B (en) * 2018-11-02 2020-12-15 海南大学 Antirust liquid containing sodium molybdate and preparation method thereof
CN112575332A (en) * 2020-12-11 2021-03-30 沈阳中科腐蚀控制工程技术中心 Novel inorganic compound corrosion inhibitor
CN113980658A (en) * 2021-11-24 2022-01-28 青岛莱伊迪光电科技有限公司 LEDUV cooling liquid and LEDUV equipment

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Application publication date: 20141217