CN101514450B - Rust removing liquid for inner cavity of component - Google Patents
Rust removing liquid for inner cavity of component Download PDFInfo
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- CN101514450B CN101514450B CN2009100665767A CN200910066576A CN101514450B CN 101514450 B CN101514450 B CN 101514450B CN 2009100665767 A CN2009100665767 A CN 2009100665767A CN 200910066576 A CN200910066576 A CN 200910066576A CN 101514450 B CN101514450 B CN 101514450B
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Abstract
The invention relates to a rust removing liquid for an inner cavity of a component. The liquid is characterized by comprising the following raw materials in portion by weight: 10 to 20 portions of phosphoric acid, 2 to 5 portions of nitric acid, 0.1 to 0.3 portion of polyether 2010, 3 to 5 portions of methenamine, 0.5 to 1 portion of industrial alcohol, 100ppm of a p-nitrophenol indicator, and 68 to 84 portions of tap water. The rust removing liquid does not contain volatile acids, heavy metal ions, sodium nitrite and other compositions, has the characteristics of non rust residue, long rust prevention period, low cost and non pollution, can be applied to rust removal and rust prevention for cast iron and steel material inner cavity components of automobile, and has significant economical benefit.
Description
Technical field:
The present invention relates to a kind of rust cleaning liquid of inner cavity of component, be applied to the rust cleaning field of automobile cast iron or steel-iron components inner chamber.
Technical background:
According to the data introduction, the total metal content that lose because of rust corrosion every year in the whole world is about more than 20% of annual production, about 10,000 hundred million dollars of the financial loss of bringing thus.
The corrosion loss in 1999 ' Guangming Daily ' report China every year is 2,800 hundred million yuan, and the loss that visible metallic corrosion causes is huge.
When metal contacts with surrounding medium, owing to taking place, destruction chemical and that electrochemical action causes is called corrosion of metal, the corrosion that is called of water existence and formation iron rust is arranged.Remove a few metals, beyond gold, platinum, titanium, various metals all change into ionic trend, and metallic corrosion is spontaneous ubiquitous phenomenon in other words.
Metal is corroded/corrosion after, all will change in profile, color and luster and mechanical properties, for example, cause accidents such as damage of facilities and pipe leakage, also cause the serious waste of resource.
Because our production management pattern does not reach external level, the used metallic substance and the standard of subsidiary material also are lower than external level in the production, therefore, after the process certain hour is deposited before the cast iron in the automobile production and the component of iron and steel material quality or the assembly assembling, just will inevitably produce corrosion.
Automobile is as the integrated engineering goods of hi-tech, and the corrosion of the outside surface spare of component influences the japanning quality; The corrosion of the internal surface spare of component is easy to generate the corrosion particulate and comes off, and influences the wear-out life of moving parts.Therefore, the appearance corrosion of component and Nei Biao corrosion do not allow to take place.
For the part that produces corrosion, the derusting method of each subsupplier is different fully.The employing acid pickling and rust removing that has, the technology that is coated with that slushing oil is antirust again, cleans before the assembling; The employing emery wheel polishing rust-removal that has, the technology that is coated with that slushing oil is antirust again, cleans before the assembling; The employing shot blasting that also has, the technology that is coated with that slushing oil is antirust again, cleans before the assembling.Above technology all can not solve the hidden danger of corrosion, causes new quality and environmental problem on the contrary.Corrosion on component or the assembly is accumulated to a certain degree, finally causes and scraps, and produces loss greatly.
Auto parts or assembly for inner chamber, for example, the inner chamber of gear box casing, jackshaft or rear axle housing body, steering box housing and automotive hub, condition of surface after the processing of part after these corrosions all there is very high technical requirements, promptly can not influences the technical parameters such as degree of cleaning of size, condition of surface and the inner chamber of part.Above-mentioned these parts all are to adopt casting technique to produce, and the size or the volume of part are bigger, based on cast iron materials, and surface irregularity, a lot of micropores that distribute are easy to generate corrosion most, in case the processing after the corrosion is also comparatively difficult.
Existing relating in metal-derusting and the antirust patent of having authorized, application number is 95103019 ' metal rust preventing, rust cleaning liquid '; Application number is 95103019 ' metal rust preventing, rust cleaning liquid '; Application number is 90106496 ' a kind of rust-removing and-preventing agent that is used for metal finishing '; Application number is 88105932 ' rust-removing and-preventing agent '; Application number is 86107238 ' the moisture rust-proof agent for oil and rust removing that a kind of metal finishing is used '; Application number is that the principal character of 01135165 ' a kind of metal rust removing and resisting paint and production method thereof ' all is to adopt phosphoric acid and aluminium hydroxide or the dissolving of aluminium powder reflux; and one-tenth such as adding phosphoric acid zinc salt and gelatin are grouped into; test and analysis revealed; rustless property is good, still, all forms solid particulate or the solid film that can estimate on the metallic surface; residue is many; after coming off, will therefore, can't adopt these residues lubricated the exerting an adverse impact of automobile assembly friction pair.
And application number is 01135165 ' a kind of metal rust removing and resisting paint and production method thereof '; Application number be the patent of 87103015 ' a kind of steel derusting rust-proofing method ' because the defective of formula material produces a large amount of solid residues on the metallic surface after the processing, be not suitable for the processing of automobile component fully.
Equally, application number is 01135165 ' a kind of metal rust removing and resisting paint and production method thereof '; Application number is 03125389 ' a kind of rust-eliminating and rust-preventing variable color priming paint '; Application number is that 02114388 ' a kind of water-latex tye rust removing and rust protection liquid as well as and manufacture method thereof ' etc. all is that restock is assisted antirust technical thought behind the metal phosphorizing, does not relate to the rust cleaning problem of the serious part of corrosion, can't satisfy the big continuously of automobile and produce.
Application number is 85100689 ' a kind of derusting phosphating liquor '; Application number is 03121702 ' a kind of derusting phosphating agent that is used for ferrous metal product surface '; Application number is ' the three-in-one cleaning derusting phosphating of a kind of normal temperature agent and preparation method thereof ' of 200310104054; Application number is 88105382 ' a kind of method of self-stripping metallic rust remover '; Application number is 94114044 ' a kind of low temperature antirusting bonderizing liquor with derusting phosphating '; Application number is 92106799 ' blending process of a kind of steel derusting, phosphorization agent and application thereof '; 88105540 of application number is ' a kind of Unoiling, rust-cleaning and parkerizing liquid '; Application number is that ' remove, antirust treating liquid for surface of iron or steel ' patent of 91100782 only is the etching solution of metal, does not consider the problem of antirust aspect.
Application number is 03146767 ' a kind of neutral oil-removing rust-removing agent '; Application number is that ' a kind of anacidity pickle solution ' speed that not only eliminates rust of 95112070 is slow, the rust cleaning weak effect, and contain a large amount of expensive raw materials, can not satisfy the characteristics of the big production of automobile.
Application number is 88100464 ' a kind of low-temperature quick derusting liquid that is used to remove the steel surface zone of oxidation '; Application number is 01131523 ' a kind of rust-eliminating and rust-preventing liquid that is used for the process metal surfaces corrosion '; Application number is 02154470 ' prescription of the antirust rust cleaning liquid of a kind of steel surface '; Application number is 93102793 ' a kind of band rust steel surface treatment solution '; Application number is 88103516 ' steel surface derusting rust-proofing treatment agent '; Application number is 95110621 patents such as ' a kind of degreasing and rust removal passivation wide temperature rang phosphating liquid ' or contains volatile hydrochloric acid; Perhaps contain the contaminative composition of environmental protection restrictions such as chromium sesquioxide or potassium bichromate, can not be applied in the big production of automobile.
Summary of the invention:
The object of the present invention is to provide a kind of rust cleaning liquid of inner cavity of component, it does not contain compositions such as volatile acid, heavy metal ion and Sodium Nitrite, have that no anvil cinder is residual, cost is low, free of contamination characteristics, can large batch ofly be applied to the rust cleaning of the automobile inner cavity part of cast iron and steel matter, remarkable in economical benefits.
Technical scheme of the present invention is achieved in that a kind of rust cleaning liquid of inner cavity of component, it is characterized in that: form: the urotropine of the citric acid of the phosphoric acid of 10-20 part, 2-5 part, the polyethers 2010 of 0.1-0.3 part, 3-5 part, the industrial spirit of 0.5-1 part, the tap water of 68-84 part, the p-NP indicator of 10ppm by following raw material by weight.
Positively effect of the present invention is: the rust cleaning that can satisfy gear box casing, jackshaft or rear axle housing body, steering box housing and automotive hub inner chamber and relate to the part of the cooperation between the moving parts, part after these corrosions is carried out surface after the processing of rust removing, promptly can not influence the technical parameters such as degree of cleaning of size, condition of surface and the inner chamber of part; Successfully be applied to automobile production and reach more than 4 years, handle full-sized car inner chamber part more than 19900, save about 6,000 ten thousand yuans of cost.
Embodiment:
The present invention will be further described below in conjunction with embodiment:
Embodiment 1:
10 parts phosphoric acid, 2 parts citric acid, 0.1 part the urotropine, 0.5 part industrial spirit, 68 parts tap water of 2010,3 parts of polyethers, the p-NP indicator of 10ppm.
Embodiment 2:
20 parts phosphoric acid, 5 parts citric acid, 0.3 part the urotropine, 1 part industrial spirit, 84 parts tap water of 2010,5 parts of polyethers, the p-NP indicator of 10ppm.
Embodiment 3:
15 parts phosphoric acid, 4 parts citric acid, 0.2 part the urotropine, 0.75 part industrial spirit, 78 parts tap water of 2010,4 parts of polyethers, the p-NP indicator of 10ppm.
Claims (1)
1. the rust cleaning liquid of the automobile inner cavity part of cast iron and steel matter is characterized in that: be made up of following raw material by weight: the urotropine of the citric acid of the phosphoric acid of 10-20 part, 2-5 part, the polyethers 2010 of 0.1-0.3 part, 3-5 part, the industrial spirit of 0.5-1 part, the p-NP indicator of 10ppm, the tap water of 68-84 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100665767A CN101514450B (en) | 2009-02-27 | 2009-02-27 | Rust removing liquid for inner cavity of component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100665767A CN101514450B (en) | 2009-02-27 | 2009-02-27 | Rust removing liquid for inner cavity of component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101514450A CN101514450A (en) | 2009-08-26 |
| CN101514450B true CN101514450B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100665767A Active CN101514450B (en) | 2009-02-27 | 2009-02-27 | Rust removing liquid for inner cavity of component |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191492B (en) * | 2010-03-19 | 2012-07-25 | 浙江海洋学院 | Rust transforming agent |
| CN102825031B (en) * | 2012-08-29 | 2014-12-10 | 宁波高发汽车控制系统股份有限公司 | Method and system for ultrasonically cleaning operating mandrel |
| CN105063642A (en) * | 2015-08-24 | 2015-11-18 | 无锡贺邦金属制品有限公司 | De-rusting liquid capable of protecting nonferrous metal casting |
| CN109797324B (en) * | 2019-02-22 | 2021-10-22 | 浙江铂动工贸有限公司 | Manufacturing method of antirust alloy hub |
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2009
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| CN101514450A (en) | 2009-08-26 |
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| C14 | Grant of patent or utility model | ||
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Owner name: CHINA FAW CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20120221 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120221 Address after: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Co-patentee after: Changchun Futian Fine Chemical Co., Ltd. Patentee after: China FAW Group Corporation Address before: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Co-patentee before: Changchun Futian Fine Chemical Co., Ltd. Patentee before: China FAW Group Corporation |