CN106319508A - Copper plate surface treatment technology - Google Patents
Copper plate surface treatment technology Download PDFInfo
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- CN106319508A CN106319508A CN201510351711.8A CN201510351711A CN106319508A CN 106319508 A CN106319508 A CN 106319508A CN 201510351711 A CN201510351711 A CN 201510351711A CN 106319508 A CN106319508 A CN 106319508A
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- copper coin
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- surface treatment
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Abstract
The invention provides a copper plate surface treatment technology, which comprises the following steps: 1) removing oil; 2) filtering sulfuric acid for the first time; 3) washing copper; 4) filtering the sulfuric acid for the second time; 5) passivating; 6) drying; and 7) baking. The intensity of an antioxidation film can be increased; the adhesive property of the antioxidation film and the copper plate is enhanced; oxidization of the copper plate is avoided; and the service life of the copper plate is prolonged.
Description
Technical field
The present invention relates to part manufacture field, be specifically related to copper coin process of surface treatment.
Background technology
Copper coin is widely used in machinery industry, it is important machine components, copper coin surface can be processed by current copper coin after processing, typically will i.e. be passivated operation after copper coin oil removing, copper coin surface is made to form oxidation-resistant film, but the closeness of the oxidation-resistant film that existing technique is formed is inadequate, use a period of time copper coin itself some positions can oxidized thus changes colour, have impact on the outward appearance of copper coin；Oxidation-resistant film is the most poor with the caking ability of copper coin itself, is easy to be scratched peeling, it is impossible to copper coin itself is carried out anti-oxidation protection, and once copper coin aoxidizes, then need to be replaced, reduce service life after using a period of time.
Summary of the invention
The technical problem to be solved is to provide copper coin process of surface treatment, by increasing capacitance it is possible to increase the closeness of oxidation-resistant film, strengthens the caking ability of oxidation-resistant film and copper coin itself, it is to avoid the oxidation of copper coin, extends the service life of copper coin.
For solving above-mentioned existing technical problem, the present invention uses following scheme: copper coin process of surface treatment, comprises the following steps:
Step one: oil removing: according to the weight ratio dilute with water degreasing powder of 9 ~ 11:1, then puts into pending copper coin and wherein soaks 1 ~ 3 minute, and period ceaselessly rocks copper coin, is taken out by copper coin and carry out 3 road washings after completing；
Step 2 a: persulfuric acid: according to the weight ratio dilute with water concentrated sulphuric acid of 45 ~ 55:1, then puts into copper coin and does not the most stop to rock copper coin 4 ~ 6 seconds, is taken out by copper coin and carry out 3 road washings after completing；
Step 3: wash copper: according to weight ratio dilute with water hydrogen peroxide and the polishing brightener of 90 ~ 110:25:2, then being put into by copper coin wherein 35 ~ 50 seconds, every 9 ~ 11 seconds of period rocked once, is taken out by copper coin and carry out 3 road washings after completing；
Step 4: secondary persulfuric acid: according to the weight ratio dilute with water concentrated sulphuric acid of 45 ~ 55:1, then puts into copper coin wherein 2 ~ 4 seconds, is taken out by copper coin and carry out 3 road washings after completing；
Step 5: passivation: according to the weight ratio dilute with water antioxidant of 35 ~ 45:1, then copper coin is put into wherein 80 ~ 100 seconds, rocked once every 25 ~ 35 seconds, after completing, copper coin is taken out and carry out 3 road washings；
Step 6: dry: be dehydrated in being poured into by copper coin in nylon leaching net and being uniformly positioned over centrifuge, the time is set as 150 ~ 200 seconds, whipping 2 ~ 3 times；
Step 7: dry: copper coin is placed on drying in oven, and temperature is set as 75 ~ 85 DEG C, and drying time is 15 ~ 25 minutes, packs after the copper coin cooling after then drying.
As preferably, the step of described 3 road washings is: with pure water, copper coin is carried out flowing water and rinses 3 times, rinses 25 ~ 40 seconds every time and do not stop to rock copper coin.Cleaning quality is good, it is possible to debris is completely eliminated.
As preferably, according to the weight ratio dilute with water degreasing powder of 10:1 in described step one.Ratio is moderate, it is ensured that while deoiling effect, reduces use cost.
As preferably, all according to the weight ratio dilute with water concentrated sulphuric acid of 50:1 in described step 2 and step 4.Ratio is moderate, and persulfuric acid is effective.
As preferably, according to weight ratio dilute with water hydrogen peroxide and the polishing brightener of 100:25:2 in described step 3.Wash copper effective, improve the fineness on copper coin surface.
As preferably, according to the weight ratio dilute with water antioxidant of 40:1 in described step 5.Ratio is moderate, good passivation effect.
As preferably, in described step 6, dewatering time is set as 180 seconds, whipping 2 times.
As preferably, drying temperature and be set as 80 DEG C in described step 7, drying time is 20 minutes.
Beneficial effect:
The present invention uses technique scheme to provide copper coin process of surface treatment, adds the closeness of oxidation-resistant film, enhances the caking ability of oxidation-resistant film and copper coin itself, it is to avoid the oxidation of copper coin, extends the service life of copper coin.
Detailed description of the invention
:
Copper coin process of surface treatment, comprises the following steps:
Step one: oil removing: with 1000 grams of water 100 grams of degreasing powders of dilution, then being put into by pending copper coin and wherein soak 1 minute, period ceaselessly rocks copper coin, is taken out by copper coin and carry out 3 road washings after completing；
Step 2 a: persulfuric acid: with 1000 grams of water 20 grams of concentrated sulphuric acids of dilution, then copper coin is put into and the most do not stop to rock copper coin 5 seconds, after completing, copper coin is taken out and carry out 3 road washings；
Step 3: wash copper: with 1000 grams of water 250 grams of hydrogen peroxide of dilution and 20 grams of polishing brighteners, then being put into by copper coin wherein 40 seconds, every 10 seconds of period rocked once, is taken out by copper coin and carry out 3 road washings after completing；
Step 4: secondary persulfuric acid: with 1000 grams of water 20 grams of concentrated sulphuric acids of dilution, then copper coin is put into wherein 2 seconds, after completing, copper coin is taken out and carry out 3 road washings；
Step 5: passivation: with 1000 grams of water 25 grams of antioxidants of dilution, then copper coin is put into wherein 90 seconds, rocked once every 30 seconds, after completing, copper coin is taken out and carry out 3 road washings；
Step 6: dry: be dehydrated in being poured into by copper coin in nylon leaching net and being uniformly positioned over centrifuge, the time is set as 180 seconds, whipping 2 times；
Step 7: dry: copper coin is placed on drying in oven, and temperature is set as 80 DEG C, and drying time is 20 minutes, packs after the copper coin cooling after then drying.
The step of described 3 road washings is: with pure water, copper coin is carried out flowing water and rinses 3 times, rinses every time and within 30 seconds, do not stop to rock copper coin.All of diluent is when the quantity cleaning copper coin reaches 300,000, it is necessary to be replaced diluent.Use this process technique to add the closeness of oxidation-resistant film, enhance the caking ability of oxidation-resistant film and copper coin itself, it is to avoid the oxidation of copper coin, extend the service life of copper coin.
Specific embodiment described herein is only to present invention spirit explanation for example.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by those skilled in the art, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Claims (6)
1. copper coin process of surface treatment, it is characterised in that: comprise the following steps:
Step one: oil removing: according to the weight ratio dilute with water degreasing powder of 9 ~ 11:1, then puts into pending copper coin and wherein soaks 1 ~ 3 minute, and period ceaselessly rocks copper coin, is taken out by copper coin and carry out 3 road washings after completing；
Step 2 a: persulfuric acid: according to the weight ratio dilute with water concentrated sulphuric acid of 45 ~ 55:1, then puts into copper coin and does not the most stop to rock copper coin 4 ~ 6 seconds, is taken out by copper coin and carry out 3 road washings after completing；
Step 3: wash copper: according to weight ratio dilute with water hydrogen peroxide and the polishing brightener of 90 ~ 110:25:2, then being put into by copper coin wherein 35 ~ 50 seconds, every 9 ~ 11 seconds of period rocked once, is taken out by copper coin and carry out 3 road washings after completing；
Step 4: secondary persulfuric acid: according to the weight ratio dilute with water concentrated sulphuric acid of 45 ~ 55:1, then puts into copper coin wherein 2 ~ 4 seconds, is taken out by copper coin and carry out 3 road washings after completing；
Step 5: passivation: according to the weight ratio dilute with water antioxidant of 35 ~ 45:1, then copper coin is put into wherein 80 ~ 100 seconds, rocked once every 25 ~ 35 seconds, after completing, copper coin is taken out and carry out 3 road washings；
Step 6: dry: be dehydrated in being poured into by copper coin in nylon leaching net and being uniformly positioned over centrifuge, the time is set as 150 ~ 200 seconds, whipping 2 ~ 3 times；
Step 7: dry: copper coin is placed on drying in oven, and temperature is set as 75 ~ 85 DEG C, and drying time is 15 ~ 25 minutes, packs after the copper coin cooling after then drying.
Copper coin process of surface treatment the most according to claim 1, it is characterised in that: the step of described 3 road washings is: with pure water, copper coin is carried out flowing water and rinses 3 times, rinses 25 ~ 40 seconds every time and do not stop to rock copper coin.
Copper coin process of surface treatment the most according to claim 1, it is characterised in that: according to the weight ratio dilute with water degreasing powder of 10:1 in described step one.
Copper coin process of surface treatment the most according to claim 1, it is characterised in that: all according to the weight ratio dilute with water concentrated sulphuric acid of 50:1 in described step 2 and step 4.
Copper coin process of surface treatment the most according to claim 1, it is characterised in that: in described step 3 according to
The weight ratio dilute with water hydrogen peroxide of 100:25:2 and polishing brightener.
Copper coin process of surface treatment the most according to claim 1, it is characterised in that: according to the weight ratio dilute with water antioxidant of 40:1 in described step 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351711.8A CN106319508A (en) | 2015-06-24 | 2015-06-24 | Copper plate surface treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351711.8A CN106319508A (en) | 2015-06-24 | 2015-06-24 | Copper plate surface treatment technology |
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| Publication Number | Publication Date |
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| CN106319508A true CN106319508A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510351711.8A Pending CN106319508A (en) | 2015-06-24 | 2015-06-24 | Copper plate surface treatment technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676538A (en) * | 2017-01-18 | 2017-05-17 | 宁波金田铜业(集团)股份有限公司 | Environment-friendly technology for copper and copper alloy surface treatment |
-
2015
- 2015-06-24 CN CN201510351711.8A patent/CN106319508A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676538A (en) * | 2017-01-18 | 2017-05-17 | 宁波金田铜业(集团)股份有限公司 | Environment-friendly technology for copper and copper alloy surface treatment |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
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| WD01 | Invention patent application deemed withdrawn after publication |