CN104233255A - Rust prevention treatment technique of transmission case inner wall - Google Patents
Rust prevention treatment technique of transmission case inner wall Download PDFInfo
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- CN104233255A CN104233255A CN201310254954.0A CN201310254954A CN104233255A CN 104233255 A CN104233255 A CN 104233255A CN 201310254954 A CN201310254954 A CN 201310254954A CN 104233255 A CN104233255 A CN 104233255A
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- spraying
- wiping
- treatment solution
- wheel box
- transmission case
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses a rust prevention treatment technique of a transmission case inner wall. The rust prevention treatment solution is composed of the following components in percentage by weight: 8-10% of oxalic acid, 7-9% of triethanolamine, 5-7% of citric acid, 6-8% of sodium petroleum sulfonate, 5.5-6.5% of fatty alcohol polyethenoxy ether, 3-5% of ammonium molybdate, 2-4% of sodium benzoate, 1.5-2.5% of sodium hydroxide, 2-4% of industrial alcohol, 1.5-3.5% of ethylene glycol and the balance of water. The treatment technique comprises the following steps: proportionally preparing the treatment solution, regulating the pH value to 3.5-4.5, preheating the processed transmission case to 35-45 DEG C, and applying the treatment solution to the transmission case inner wall in a spraying or wiping mode while controlling the spraying or wiping quantity from flowing down; and after the applied treatment solution is dried, repeating the spraying or wiping 3-4 times.
Description
Technical field
The present invention relates to technical field of surface, particularly relate to a kind of anti-corrosion treatment process of wheel box inwall.
Background technology
According to data introduction, the total metal content that the whole world is lost because of rust corrosion is every year about more than 20% of annual production, the financial loss brought thus about 1,000,000,000,000 dollars.
When metal contacts with surrounding medium, owing to there is chemistry and electrochemical action, the destruction that causes is called corrosion of metal, have water to exist and form iron rust be called corrosion.Except a few metals, beyond gold, platinum, titanium, various metal all changes into the trend of ion, 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, and such as, cause the accident such as damage of facilities and pipe leakage, also cause the serious waste of resource.
For the part producing corrosion, the derusting method of each subsupplier is completely different.Some employing acid pickling and rust removings, painting slushing oil is the front technique of cleaning of antirust, assembling again; Some employing emery wheel polishing rust-removals, painting slushing oil is the front technique of cleaning of antirust, assembling again; Also the employing shot blasting had, painting slushing oil is the front technique of cleaning of antirust, assembling again.Above technique all can not solve the hidden danger of corrosion, causes new quality and environmental problem on the contrary.Corrosion on component or assembly is accumulated to a certain degree, finally causes and scraps, and produces and loses greatly.
Automobile is as the integrated engineering goods of hi-tech, and the corrosion of the outside surface part of component affects painting quality; The corrosion of the internal surface part of component easily produces coming off of corrosion particle, affects the wear-out life of moving parts.Therefore, the appearance corrosion of component and Nei Biao corrosion do not allow to occur.
Antirust treatment for automobile variable speed chamber interior wall has very high technical requirements, namely can not affect the technical parameters such as the degree of cleaning of the size of part, condition of surface and inner chamber.Wheel box adopts casting technique to produce usually, and the size of part or volume are comparatively large, and based on cast iron materials, surface irregularity, distribute a lot of micropore, the most easily produces corrosion, once the process after corrosion is also comparatively difficult.
Summary of the invention
The object of the invention is to the anti-corrosion treatment process proposing a kind of wheel box inwall, the treatment solution that this technique adopts designs for wheel box inwall specially, do not affect the technical parameters such as the degree of cleaning of the size of wheel box, condition of surface and inner chamber, and erosion resistance is high, rust-proof effect is excellent.
For reaching this object, the present invention by the following technical solutions:
A kind of anti-corrosion treatment process of wheel box inwall, the composition of the antirust treatment liquid that this technique adopts is by weight percentage: oxalic acid 8-10%, trolamine 7-9%, citric acid 5-7%, petroleum sodium sulfonate 6-8%, fatty alcohol-polyoxyethylene ether 5.5-6.5%, ammonium molybdate 3-5%, Sodium Benzoate 2-4%, sodium hydroxide 1.5-2.5%, industrial alcohol 2-4%, ethylene glycol 1.5-3.5%, surplus is water; Described treatment process is: by said components preparation treatment solution, adjusted to ph is 3.5-4.5, the wheel box processed is preheated to 35-45 DEG C, then adopt the mode of spraying or wiping that treatment solution is coated on wheel box inwall, control the amount of spraying or wiping, be as the criterion not flow down, after treatment solution drying to be coated, spraying or wiping, are carried out 3-4 time altogether next time again.
Beneficial effect of the present invention is:
1) in treatment solution of the present invention not containing the composition such as volatile acid, heavy metal ion and Sodium Nitrite, have remain without anvil cinder, the antirust cycle is long, cost is low, free of contamination feature.
2) treatment solution of the present invention is that wheel box inwall is special, can make inwall in subsequent manufacturing processes, and have good solidity to corrosion in use procedure, and does not affect the technical parameters such as the degree of cleaning of the size of wheel box inner chamber, condition of surface and inner chamber.
Embodiment
Embodiment one
A kind of anti-corrosion treatment process of wheel box inwall, the composition of the antirust treatment liquid that this technique adopts is by weight percentage: oxalic acid 8%, trolamine 9%, citric acid 5%, petroleum sodium sulfonate 8%, fatty alcohol-polyoxyethylene ether 5.5%, ammonium molybdate 5%, Sodium Benzoate 2%, sodium hydroxide 2.5%, industrial alcohol 2%, ethylene glycol 3.5%, surplus is water; Described treatment process is: by said components preparation treatment solution, adjusted to ph is 3.5, the wheel box processed is preheated to 45 DEG C, then adopt the mode of spraying or wiping that treatment solution is coated on wheel box inwall, control the amount of spraying or wiping, be as the criterion not flow down, after treatment solution drying to be coated, spraying or wiping next time, carry out 3 times altogether again.
Embodiment two
A kind of anti-corrosion treatment process of wheel box inwall, the composition of the antirust treatment liquid that this technique adopts is by weight percentage: oxalic acid 10%, trolamine 7%, citric acid 7%, petroleum sodium sulfonate 6%, fatty alcohol-polyoxyethylene ether 6.5%, ammonium molybdate 3%, Sodium Benzoate 4%, sodium hydroxide 1.5%, industrial alcohol 4%, ethylene glycol 1.5%, surplus is water; Described treatment process is: by said components preparation treatment solution, adjusted to ph is 4.5, the wheel box processed is preheated to 35 DEG C, then adopt the mode of spraying or wiping that treatment solution is coated on wheel box inwall, control the amount of spraying or wiping, be as the criterion not flow down, after treatment solution drying to be coated, spraying or wiping next time, carry out 4 times altogether again.
Embodiment three
A kind of anti-corrosion treatment process of wheel box inwall, the composition of the antirust treatment liquid that this technique adopts is by weight percentage: oxalic acid 9%, trolamine 8%, citric acid 6%, petroleum sodium sulfonate 7%, fatty alcohol-polyoxyethylene ether 6.0%, ammonium molybdate 4%, Sodium Benzoate 3%, sodium hydroxide 2.0%, industrial alcohol 3%, ethylene glycol 2.5%, surplus is water; Described treatment process is: by said components preparation treatment solution, adjusted to ph is 4.0, the wheel box processed is preheated to 40 DEG C, then adopt the mode of spraying or wiping that treatment solution is coated on wheel box inwall, control the amount of spraying or wiping, be as the criterion not flow down, after treatment solution drying to be coated, spraying or wiping next time, carry out 3 times altogether again.
Claims (1)
1. an anti-corrosion treatment process for wheel box inwall, is characterized in that, the composition of the antirust treatment liquid that this technique adopts is by weight percentage: oxalic acid 8-10%, trolamine 7-9%, citric acid 5-7%, petroleum sodium sulfonate 6-8%, fatty alcohol-polyoxyethylene ether 5.5-6.5%, ammonium molybdate 3-5%, Sodium Benzoate 2-4%, sodium hydroxide 1.5-2.5%, industrial alcohol 2-4%, ethylene glycol 1.5-3.5%, surplus is water; Described treatment process is: by said components preparation treatment solution, adjusted to ph is 3.5-4.5, the wheel box processed is preheated to 35-45 DEG C, then adopt the mode of spraying or wiping that treatment solution is coated on wheel box inwall, control the amount of spraying or wiping, be as the criterion not flow down, after treatment solution drying to be coated, spraying or wiping, are carried out 3-4 time altogether next time again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310254954.0A CN104233255A (en) | 2013-06-24 | 2013-06-24 | Rust prevention treatment technique of transmission case inner wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310254954.0A CN104233255A (en) | 2013-06-24 | 2013-06-24 | Rust prevention treatment technique of transmission case inner wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104233255A true CN104233255A (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310254954.0A Pending CN104233255A (en) | 2013-06-24 | 2013-06-24 | Rust prevention treatment technique of transmission case inner wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104233255A (en) |
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2013
- 2013-06-24 CN CN201310254954.0A patent/CN104233255A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |