CN103114294A - Rust prevention method for stainless steel product - Google Patents
Rust prevention method for stainless steel product Download PDFInfo
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- CN103114294A CN103114294A CN2013100147105A CN201310014710A CN103114294A CN 103114294 A CN103114294 A CN 103114294A CN 2013100147105 A CN2013100147105 A CN 2013100147105A CN 201310014710 A CN201310014710 A CN 201310014710A CN 103114294 A CN103114294 A CN 103114294A
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- stainless steel
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- rust prevention
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Abstract
The invention relates to a rust prevention method and in particular relates to a rust prevention method for a stainless steel product. The rust prevention method for the stainless steel product comprises the following steps of: soaking the processed stainless steel product to a 4%-5% food-level citric acid solution to boil for 3-6 minutes. For preventing a stainless steel container from being rusted, a process of boiling and cleaning in the food-level citric acid solution is added in the producing and manufacturing process, so that the iron and other to-be-rusted substances on the surface of the stainless steel are removed by carrying out passivating reaction on the surface of the stainless steel, thus the stainless steel container is not rusted.
Description
Technical field
The present invention relates to a kind of rust-proofing method, particularly a kind of rust-proofing method of stainless steel product.
Background technology
Oxidizing reaction although be known as stainlessly, also often occurs in existing stainless steel product in use, cause various due to use maintain improper or the residing environment of stainless steel too abominable, the phenomenon of getting rusty.Especially in the junction of stainless steel product or without the surface of handling well fully, usually have rusty stain, impact is used and product life.Application number: the Chinese invention patent of 200710093070.6, the applying date: 2007-11-24 discloses the anti-corrosive technology of a kind of ferritic stainless steel in welding, it is characterized in that including following steps: 1) that the face of weld cleaning of ferritic stainless steel weldment is clean, and then evenly stamp one deck silica gel from solder joint; 2) the ferritic stainless steel weldment is docked, installs and lock with another ferritic stainless steel weldment, beginning spot welding, point welds the required casing of rear formation; 3) to overflow immediately to casing the cleaning work of silica gel after the welding.This technique need to be stamped one deck silica gel at the solder joint place of stainless steel weldment, thereby realizes the effect of antirust, anti-corrosive, processes like this taking time and effort, and silica-gel coating is easily in use loss also.
Summary of the invention
The object of the present invention is to provide a kind of rust-proofing method of stainless steel product, can realize the antirust, anti-corrosive of stainless steel product by taking simple technique of cleaning.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of rust-proofing method of stainless steel product is immersed in the food grade citric acid solution that mass concentration is 4-5% through the stainless steel product that machines and boiled 3-6 minute.For preventing that stainless steel vessel from getting rusty, manufacture at it and add the technique of boiling together cleaning with the food grade citric acid in process, the suitable pickling of this technique makes stainless steel surface generation passivation reaction, remove irony and other material that can get rusty of stainless steel surface, thereby stainless steel vessel can not got rusty.
As preferably, described stainless steel product is 304 stainless materials.The 304th, a kind of stainless steel of versatility, it is widely used for making equipment and the parts that require good over-all properties (corrosion-resistant and formability).So the product that these steel are made is comparatively extensive, and its antirust processing is also particularly important.
As preferably, described processing comprises heating, stretch, and electric welding or polishing.The making of stainless steel product comprises a lot of operations, and citric acid solution boiling part of the present invention is equivalent to acid pickling step, need to stretch through heating in the stainless steel product preparation, after electric welding or polishing, carries out at once.Because this moment, stainless steel product still had preheating, can fully react with citric acid solution good passivation effect.
As preferably, described boiling time is 3 minutes.The citric acid solution boiling time of 3 minutes is just suitable, and overlong time can cause the prolongation of process time, and the time, too short passivation effect was bad.
The invention has the beneficial effects as follows: get rusty for preventing stainless steel vessel, the present invention manufactures at it and adds the technique of boiling together cleaning with the food grade citric acid in process, the suitable pickling of this technique, make stainless steel surface generation passivation reaction, remove irony and other material that can get rusty of stainless steel surface, thereby stainless steel vessel can not got rusty.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.Should be appreciated that enforcement of the present invention is not limited to the following examples, any pro forma accommodation and/or change that the present invention is made all will fall into protection domain of the present invention.
In the present invention, if not refer in particular to, all part, per-cents are weight unit, and all equipment and raw material etc. all can be buied from market or the industry is commonly used.
Embodiment 1:
A kind of rust-proofing method of 304 stainless steel products, specifically: stretched, especially 304 stainless steel products of deep drawn are after ultrasonic cleaning, then to be immersed in mass concentration be to boil 5 minutes in 5% food grade citric acid solution.Afterwards, take out drying, obtain product.
After the human consumer buys stainless steel product, take out after also can boiling 5 minutes in mass concentration is 5% food grade citric acid solution dry.The suitable pickling of citric acid solution boiling process makes stainless steel surface generation passivation reaction, removes irony and other material that can get rusty of stainless steel surface, thereby stainless steel vessel can not got rusty.
After this law was processed, the stainless steel product surface-brightening was homogeneous, the salt-fog test of 5% concentration 96 hours, and soaked 4 hours in salt solution, and product can not get rusty.As long as product surface is not damaged, life-time service can not get rusty.On the contrary, same 304 stainless steel products of not processing through this law through in the salt-fog test 96 hours of 5% concentration or soak 4 hours in salt solution after, have the rust staining of many points, especially at the turning.
Embodiment 2:
A kind of rust-proofing method of 304 stainless steel products, through the stainless steel product of welding polishing between stainless steel, after ultrasonic cleaning, then to be immersed in mass concentration be to boil 5 minutes in 5% food grade citric acid solution.Afterwards, take out drying, obtain product.The stainless steel product surface-brightening that obtains is homogeneous, the salt-fog test of 5% concentration 96 hours, and soaks 4 hours in salt solution, and product can not get rusty.
Embodiment 3:
A kind of rust-proofing method of 304 stainless steel products, through 304 stainless steel products that have the aluminium sheet heat-generating pipe to weld up, after polishing, ultrasonic cleaning, then to be immersed in mass concentration be to boil 5 minutes in 5% food grade citric acid solution.Afterwards, take out drying, obtain product.The stainless steel product surface-brightening is homogeneous, the salt-fog test of 5% concentration 96 hours, and soaks 4 hours in salt solution, and product can not get rusty.
Embodiment 4:
A kind of rust-proofing method of 304 stainless steel products, through 304 stainless steel products after cutting or turnning and milling processing treatment, after ultrasonic cleaning, then to be immersed in mass concentration be to boil 5 minutes in 5% food grade citric acid solution.Afterwards, take out drying, obtain product.The stainless steel product surface-brightening is homogeneous, the salt-fog test of 5% concentration 96 hours, and soaks 4 hours in salt solution, and product can not get rusty.
Above-described embodiment is a kind of better scheme of the present invention, is not that the present invention is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (5)
1. the rust-proofing method of a stainless steel product, is characterized in that: be immersed in the food grade citric acid solution that mass concentration is 4-5% through the stainless steel product that machines and boiled 3-6 minute.
2. the rust-proofing method of stainless steel product according to claim 1, it is characterized in that: described stainless steel product is 304 stainless materials.
3. the rust-proofing method of stainless steel product according to claim 1 and 2, it is characterized in that: described processing comprises heating, stretch, electric welding or polishing.
4. the rust-proofing method of stainless steel product according to claim 1 and 2, it is characterized in that: described boiling time is 1-5 minute.
5. the rust-proofing method of stainless steel product according to claim 3, it is characterized in that: described boiling time is 1-5 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100147105A CN103114294A (en) | 2013-01-16 | 2013-01-16 | Rust prevention method for stainless steel product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100147105A CN103114294A (en) | 2013-01-16 | 2013-01-16 | Rust prevention method for stainless steel product |
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| CN103114294A true CN103114294A (en) | 2013-05-22 |
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| CN2013100147105A Pending CN103114294A (en) | 2013-01-16 | 2013-01-16 | Rust prevention method for stainless steel product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866336A (en) * | 2014-03-24 | 2014-06-18 | 无锡宝顺不锈钢有限公司 | Rust prevention method for stainless steel product |
-
2013
- 2013-01-16 CN CN2013100147105A patent/CN103114294A/en active Pending
Non-Patent Citations (3)
| Title |
|---|
| 南化公司氮肥厂二车间: ""柠檬酸酸洗废热锅炉"", 《化肥工业》 * |
| 李德福等: "《石油化工设备清洗技术》", 31 October 2003, 化学工业出版社 * |
| 贾文熙: "《文物养护复制适用技术》", 30 September 1997, 陕西旅游出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866336A (en) * | 2014-03-24 | 2014-06-18 | 无锡宝顺不锈钢有限公司 | Rust prevention method for stainless steel product |
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Application publication date: 20130522 |