CN105965362A - Rust removal process for switch cabinet - Google Patents
Rust removal process for switch cabinet Download PDFInfo
- Publication number
- CN105965362A CN105965362A CN201610503492.5A CN201610503492A CN105965362A CN 105965362 A CN105965362 A CN 105965362A CN 201610503492 A CN201610503492 A CN 201610503492A CN 105965362 A CN105965362 A CN 105965362A
- Authority
- CN
- China
- Prior art keywords
- rack
- derusting
- rust
- rust removal
- switch cabinet
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
-
- 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
Abstract
The invention discloses a rust removal process for a switch cabinet. The rust removal process comprises the following steps of (1) carrying out mechanical rust removal on the part, locally with rusts, of the surface of the switch cabinet, and removing the obvious rusts; (2) after mechanical rust removal, adopting deionized water to carry out showering, and carrying out drying treatment; (3) soaking the switch cabinet after being dried into an electrolytic derusting solution, and carrying out cathodic etching rust removal to wholly remove the rusts of the switch cabinet; and (4) after cathodic etching rust removal, taking out the switch cabinet, showering the switch cabinet by adopting the deionized water, and carrying out drying treatment to obtain the switch cabinet after rust removal. The rust removal process has the environmental-friendly feature, can solve the influence of mechanical rust removal on the thickness of a steel plate of the switch cabinet, can also prevent reworking as rust removal at the rust part is incomplete in the cathodic etching rust removal process of the switch cabinet, remarkably improve the production efficiency and is also good in the performance of the switch cabinet after rust removal.
Description
Technical field
The present invention relates to derusting process, it is more particularly related to a kind of exchange rack derusting process.
Background technology
Exchange rack is used to deposit the object of computer and related control device, it is provided that the guarantor to storage equipment
Protect, shield electromagnetic interference, in order, fitly alignment apparatus, convenient after safeguards equipment.
At present, the exchange commonly used cold-rolled steel sheet of rack makes, at surface spraying ORC after welding, such as
Paint etc..Although cold-rolled steel sheet has excellent performance and has certain rust-proofing effect, resisting of its surface-coated
Oxide covering also is able to delay to a certain extent the action of rust of rack, but due to material and the defect of technique or
The effect of time, still in use there is rusty stain evidence of corrosion, service life and safety in some exchange rack
Performance drastically declines, it is impossible to be continuing with, and recycles after needing to recycle.
In the prior art, the rust cleaning of exchange rack surface derusting method predominantly organic tool, chemical derusting and electrochemistry are removed
Rust.Wherein, mechanical derusting method is to utilize manual polishing or equipment to carry out sandblasting, shot-peening, high-pressure injection etc., removes
Become rusty effective, but easily cause dust and noise, have steel certain damage, overall use can cause exchanging rack
Sheet material is the thinnest, affects recycling.
Chemical derusting is oxide skin and the corrosion product utilizing the chemical substances such as acid in solution, alkali and steel surface
Chemical reaction, makes oxide skin and corrosion product etc. be dissolved in solution, owing to deruster contains high concentrated acid or alkali
Solution, has severe corrosive, big to harm.
And electrochemical corrosion is to be immersed in processed workpiece in acid or slaine treatment fluid to make electrode, pass to unidirectional current and
Making the method that the rust on workpiece removes, male or female made by workpiece, is called anodic etching method or cathodic etching method,
The requirement to using electric current of the anodic etching method is strict, and easy excessive corrosion destroys rack plate surface, causes local
Cross thin, affect recycling；Cathodic etching method is preferable derusting method, and its chemical solvent used is environment
, there is not excessive erosion problem in friendly, do not interfere with rack again with, but local is had the exchange of rusty stain
After rack entirety carries out electrochemical corrosion, local has the position of rusty stain and may corrode less than bottom sheets, again
Do over again and can cause artificial, material and waste of time, affect the raising of production efficiency.
Summary of the invention
For weak point present in above-mentioned technology, the present invention provides one to can apply to exchange rack
Derusting process, significantly improve production efficiency, operator and environment do not worked the mischief.
In order to realize according to object of the present invention and further advantage, the present invention is by the following technical programs
Realize:
A kind of exchange rack derusting process of the present invention, comprises the steps:
(1) position to local, exchange rack surface with rusty stain carries out mechanical derusting, removes obvious rusty stain；
(2) use deionized water shower after mechanical derusting and carry out dried；
(3) dried exchange rack immersion electrolytic derusting solution will carry out cathodic etching rust cleaning, to machine
Cabinet entirety eliminates rust；
(4) take out rack after cathodic etching rust cleaning, rack is used deionized water shower and is dried place
Reason, rack after being eliminated rust.
Preferably, also include that step (5), by rack surface-coated corrosion-inhibiting coating after rust cleaning, obtains rust remover
Cabinet finished product.
Preferably, described in step (1), mechanical derusting is that employing is artificial or equipment carries out local rusty stain and beats
Mill.
Preferably, described in step (2) and (4), the deionized water shower time is 0.5～5min.
Preferably, described in step (2) and (4), dried is natural air drying, forced air drying
Or baking box is dried.
Preferably, in step (3), described electrolytic derusting solution includes following component by weight percentage:
Ammonium chloride 2～3.5wt%；Potassium sulfate 1～2wt%；Surplus is water.
Preferably, described electrolytic derusting solution being heated to 65～95 DEG C, the rust cleaning time is 0.8～8min.
The present invention at least includes following beneficial effect:
Mechanical derusting and electrochemistry derusting method are combined by derusting process of the present invention, have environmental friendliness
Characteristic, both can solve the mechanical derusting impact on rack steel plate thickness, it is also possible to avoids exchanging rack and exists
In cathodic etching descaling process, to doing over again that the rust cleaning of rusty stain position not exclusively causes, significantly improve production effect
After rate, and rust cleaning, rack is functional.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part also will
By the research of the present invention and practice are understood by the person skilled in the art.
Detailed description of the invention
Should be appreciated that used herein such as " have ", " comprising " and " including " term not
Get rid of other element one or more or the existence of a combination thereof or interpolation.
The present invention provides a kind of exchange rack derusting process, comprises the steps:
(1) position to local, exchange rack surface with rusty stain carries out mechanical derusting, removes obvious rusty stain；
(2) use deionized water shower after mechanical derusting and carry out dried；
(3) dried exchange rack immersion electrolytic derusting solution will carry out cathodic etching rust cleaning, to machine
Cabinet entirety eliminates rust；
(4) take out rack after cathodic etching rust cleaning, rack is used deionized water shower and is dried place
Reason, exchanges rack after being eliminated rust.
Mechanical derusting of the present invention, cathodic etching rust cleaning, cleaning, the concrete operations of drying and other steps
Mode and process conditions all can be selected by those skilled in the art.
Further, also include that step (5), by rack surface-coated corrosion-inhibiting coating after rust cleaning, is eliminated rust
Rack finished product, described rust cleaning rack finished product can put back into.
Further, described in step (1), mechanical derusting is that employing is artificial or equipment carries out local rusty stain
Polishing, removes the obvious rusty stain in surface.The grinding tool of attentional selection suitable dimension in bruting process, it is to avoid
Steel plate body is caused damage.
Further, described in step (2) and (4), the deionized water shower time is 0.5～5min.,
Such as can select 0.52～4.86min, 0.5～4.6min, 0.88～4min, 1.2～2.3min, 2.1min etc., enter one
Step is preferably 1～2.5min, and the most preferably 2min. present invention is optimized selection to the deionized water shower time,
Avoid the time too short, it is impossible to be cleaned up by the rusty stain residual impurity on exchange rack surface；Overlong time,
Affect overall treatment efficiency.
Further, described in step (2) and (4) dried by those skilled in the art according to
Practical situation selects, such as the drying mode such as natural air drying, forced air drying or baking box drying, all
Can be used for the steel to eliminating rust, having cleaned and be dried process.Rack after shower is preferably put by the present invention
Enter baking box to dry, dry temperature and can be set as 60～85 DEG C, more preferably 70 DEG C.
Further, in step (3), described electrolytic derusting solution includes following group by weight percentage
Part: ammonium chloride 2～3.5wt%；Potassium sulfate 1～2wt%；Surplus is water.The effect of described ammonium chloride is to promote
The exchange rack surface in immersion deruster is made to produce steam air film layer；Potassium sulfate function as electricity
Solve matter and produce plasma discharge on exchange rack surface；Described " surplus is water " refers to described electrolytic derusting
In solution in addition to a certain amount of ammonium chloride and potassium sulfate, residual components is water, and three's sum is 100wt%.
This kind of electrolytic derusting solution is the neutral salt solution of low concentration, non-volatility, and eliminate rust speed to metal surface
Comparatively fast, it is preferred electrolytic derusting solution.Deruster of the present invention of the present invention can also include
The composition that other those skilled in the art are conventional when preparing deruster.
Further, described electrolytic derusting solution is heated to 65～95 DEG C, further preferred 75～90
DEG C, most preferably 85 DEG C, electrolytic derusting solution is heated to reasonable temperature, is conducive to improving rust cleaning molten
The activity of liquid, improves rust cleaning efficiency, and under this temperature conditions, the rack cathodic etching rust cleaning time is
0.8～8min, further preferred 1～5min, most preferably 2min.The present invention is to consider the time of eliminating rust
Select, owing to have employed efficient deruster, descaling process on the basis of production cost and rust cleaning effect
Carry out 0.8min clock can preferably complete to eliminate rust, the rack serious to some rusty stains, can be with proper extension
The rust cleaning time.
Embodiment 1
Allotment electrolytic derusting solution, contains in this electrolytic derusting solution: weight percentage is the chlorine of 2wt%
Changing ammonium, the Potassium monosulfide. of weight percentage 1wt%, remaining is deionized water.
Concrete derusting process is as follows:
(1) exchange rack is sent into polishing workshop, use and manually utilize sand table to polish, remove surface obvious
Rusty stain；
(2) the exchange rack after polishing is sent into shower room, after deionized water shower 1min, sends into baking box,
It is dried under 70 ° of temperature conditionss；
(3) electrolytic derusting solution is heated to 85 DEG C, dried exchange rack is immersed electrolytic derusting
In solution, the motor-generator set negative pole of electrolytic derusting machine is received rust cleaning switch, positive pole 4 pieces of positive plates in parallel,
4 pieces of positive plates are equidistantly trapped among around switch to be eliminated rust, and motor-generator set output voltage control, at 300w, removes
The rust time is 2min；
(4) take out exchange rack after cathodic etching rust cleaning and send into shower room, after deionized water shower 1min
Send into baking box, be dried under 70 ° of temperature conditionss, after being eliminated rust, exchange rack.
Exchange rack surface rusty stain eliminates, and metal surface base color manifests, and exchange rack steel plate thickness subtracts
Few in the range of 1mm, mechanics and security performance are good.
Embodiment 2
Allotment electrolytic derusting solution, contains in this electrolytic derusting solution: weight percentage is the chlorine of 3wt%
Changing ammonium, the Potassium monosulfide. of weight percentage 1.5wt%, remaining is deionized water.
Concrete derusting process is as follows:
(1) exchange rack is sent into polishing workshop, use and manually utilize sand table to polish, remove local, surface
Substantially rusty stain；
(2) the exchange rack after polishing is sent into shower room, after deionized water shower 1min, sends into baking box,
It is dried under 70 ° of temperature conditionss；
(3) electrolytic derusting solution is heated to 85 DEG C, dried exchange rack is immersed electrolytic derusting
In solution, the motor-generator set negative pole of electrolytic derusting machine is received rust cleaning switch, positive pole 4 pieces of positive plates in parallel,
4 pieces of positive plates are equidistantly trapped among around switch to be eliminated rust, and motor-generator set output voltage control, at 300w, removes
The rust time is 2min；
(4) take out exchange rack after cathodic etching rust cleaning and send into shower room, after deionized water shower 1min
Send into baking box, be dried under 70 DEG C of temperature conditionss, after being eliminated rust, exchange rack.
Exchange rack surface rusty stain eliminates, and metal surface base color manifests, and exchange rack steel plate thickness subtracts
Few in the range of 1mm, mechanics and security performance are good.
Embodiment 3
Allotment electrolytic derusting solution, contains in this electrolytic derusting solution: weight percentage is 3.5wt%'s
Ammonium chloride, the Potassium monosulfide. of weight percentage 2wt%, remaining is deionized water.
Concrete derusting process is as follows:
(1) exchange rack is sent into polishing workshop, use and manually utilize sand table to polish, remove local, surface
Substantially rusty stain；
(2) the exchange rack after polishing is sent into shower room, after deionized water shower 1min, sends into baking box,
It is dried under 70 ° of temperature conditionss；
(3) electrolytic derusting solution is heated to 85 DEG C, dried exchange rack is immersed electrolytic derusting
In solution, the motor-generator set negative pole of electrolytic derusting machine is received rust cleaning switch, positive pole 4 pieces of positive plates in parallel,
4 pieces of positive plates are equidistantly trapped among around switch to be eliminated rust, and motor-generator set output voltage control, at 300w, removes
The rust time is 2min；
(4) take out exchange rack after cathodic etching rust cleaning and send into shower room, after deionized water shower 1min
Send into baking box, be dried under 70 DEG C of temperature conditionss, after being eliminated rust, exchange rack.
Exchange rack surface rusty stain eliminates, and metal surface base color manifests, and exchange rack steel plate thickness subtracts
Few in the range of 1mm, mechanics and security performance are good.
Comparative example 1
On the basis of embodiment 1, removal step (1) as different from Example 1, only perform step
(2)、(3)、(4)。
Exchange rack surface locally lies in rust staining residual, and switch steel plate thickness reduces in the range of 1mm,
Mechanics and security performance are good.
Ammonium chloride content and Potassium monosulfide. content in embodiment 1, embodiment 2, embodiment 3, comparative example 1
Numerical value as shown in table 1.
Table 1 ammonium chloride content and the numerical value of Potassium monosulfide. content
| Parameter | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 |
| Ammonium chloride content | 2 | 3 | 3.5 | 2 |
| Potassium monosulfide. content | 1 | 1.5 | 2 | 1 |
| Whether perform mechanical grinding step | It is | It is | It is | No |
According to table 1, each embodiment is compared with comparative example respectively it can be seen that increase local mechanical rust cleaning step
Suddenly exchange rack rust cleaning success rate can be significantly improved, it is to avoid do over again, improve production efficiency.
Although embodiment of the present invention are disclosed as above, but it is not restricted to description and embodiment party
Listed utilization in formula.It can be applied to various applicable the field of the invention completely.For being familiar with ability
Other amendment it is easily achieved for the personnel in territory.Therefore without departing substantially from claim and equivalency range
Under the general concept limited, the present invention is not limited to specific details and shown here as the example with description.
Claims (7)
1. an exchange rack derusting process, it is characterised in that comprise the steps:
(1) position to local, exchange rack surface with rusty stain carries out mechanical derusting, removes obvious rusty stain；
(2) use deionized water shower after mechanical derusting and carry out dried；
(3) dried exchange rack immersion electrolytic derusting solution will carry out cathodic etching rust cleaning, to machine
Cabinet entirety eliminates rust；
(4) take out rack after cathodic etching rust cleaning, rack is used deionized water shower and is dried place
Reason, rack after being eliminated rust.
2. a kind of exchange rack derusting process as claimed in claim 1, it is characterised in that also include step
Suddenly rack surface-coated corrosion-inhibiting coating after (5) will eliminate rust, obtains the rack finished product that eliminates rust.
3. a kind of exchange rack derusting process as claimed in claim 1 or 2, it is characterised in that in step
Suddenly mechanical derusting described in (1) is that employing is artificial or equipment carries out local rusty stain polishing.
4. a kind of exchange rack derusting process as claimed in claim 1 or 2, it is characterised in that in step
Suddenly described in (2) and (4), the deionized water shower time is 0.5～5min.
5. a kind of exchange rack derusting process as claimed in claim 1 or 2, it is characterised in that in step
Suddenly dried described in (2) and (4) is that natural air drying, forced air drying or baking box are dried.
6. a kind of exchange rack derusting process as claimed in claim 1 or 2, it is characterised in that in step
Suddenly, in (3), described electrolytic derusting solution includes following component by weight percentage: ammonium chloride 2～3.5wt%；
Potassium sulfate 1～2wt%；Surplus is water.
7. a kind of exchange rack derusting process as claimed in claim 6, it is characterised in that in step (3)
Middle described electrolytic derusting solution being heated to 65～95 DEG C, the rust cleaning time is 0.8～8min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503492.5A CN105965362A (en) | 2016-06-30 | 2016-06-30 | Rust removal process for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503492.5A CN105965362A (en) | 2016-06-30 | 2016-06-30 | Rust removal process for switch cabinet |
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| CN105965362A true CN105965362A (en) | 2016-09-28 |
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ID=56953433
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| CN201610503492.5A Pending CN105965362A (en) | 2016-06-30 | 2016-06-30 | Rust removal process for switch cabinet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108499830A (en) * | 2018-03-09 | 2018-09-07 | 天津尼凯斯电器设备股份有限公司 | A kind of switchgear plank derusting process |
| CN112342550A (en) * | 2020-09-22 | 2021-02-09 | 大唐可再生能源试验研究院有限公司 | Fan tower barrel rust removal method |
| CN114273343A (en) * | 2022-01-18 | 2022-04-05 | 中国石油大学(华东) | In-situ electrofluidic decontamination method and application |
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| JPH11279781A (en) * | 1998-03-30 | 1999-10-12 | Kawasaki Steel Corp | Production of austenitic stailness steel plate not having pattern on surface |
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| CN103806083A (en) * | 2012-11-09 | 2014-05-21 | 瑞研材料科技股份有限公司 | Alkaline-electrolysis rust removal method |
| CN103820799A (en) * | 2014-03-18 | 2014-05-28 | 中冶南方工程技术有限公司 | Production method for continuous pickling of hot rolled superaustenitic stainless strip steel |
| CN103820798A (en) * | 2014-03-18 | 2014-05-28 | 中冶南方工程技术有限公司 | Production method for continuous pickling of hot rolled duplex stainless strip steel |
| CN103882218A (en) * | 2014-03-18 | 2014-06-25 | 中冶南方工程技术有限公司 | Steel annealing and pickling method for hot-rolled 430 ferrite stainless steel band |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610171A (en) * | 1992-04-30 | 1994-01-18 | Nippon Steel Corp | Treatment of hot finished ferritic stainless steel strip |
| JPH11279781A (en) * | 1998-03-30 | 1999-10-12 | Kawasaki Steel Corp | Production of austenitic stailness steel plate not having pattern on surface |
| CN102899709A (en) * | 2012-09-21 | 2013-01-30 | 无锡市顺达物流涂装设备有限公司 | Liquid phase plasma derusting solution of steel and derusting process |
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| CN103820798A (en) * | 2014-03-18 | 2014-05-28 | 中冶南方工程技术有限公司 | Production method for continuous pickling of hot rolled duplex stainless strip steel |
| CN103882218A (en) * | 2014-03-18 | 2014-06-25 | 中冶南方工程技术有限公司 | Steel annealing and pickling method for hot-rolled 430 ferrite stainless steel band |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108499830A (en) * | 2018-03-09 | 2018-09-07 | 天津尼凯斯电器设备股份有限公司 | A kind of switchgear plank derusting process |
| CN112342550A (en) * | 2020-09-22 | 2021-02-09 | 大唐可再生能源试验研究院有限公司 | Fan tower barrel rust removal method |
| CN114273343A (en) * | 2022-01-18 | 2022-04-05 | 中国石油大学(华东) | In-situ electrofluidic decontamination method and application |
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Application publication date: 20160928 |