CN109609988A - A kind of pipe fitting cleaning before copper plating method - Google Patents
A kind of pipe fitting cleaning before copper plating method Download PDFInfo
- Publication number
- CN109609988A CN109609988A CN201910006630.2A CN201910006630A CN109609988A CN 109609988 A CN109609988 A CN 109609988A CN 201910006630 A CN201910006630 A CN 201910006630A CN 109609988 A CN109609988 A CN 109609988A
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- China
- Prior art keywords
- pipe fitting
- pickling
- temperature
- cleaning method
- wash
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
Abstract
The invention discloses a kind of pipe fitting cleaning before copper plating methods, belong to processing technique field.Cleaning method includes: to heat to pipe fitting；After pipe fitting is cooling, pickling is carried out to pipe fitting；Pipe fitting after pickling is subjected to first wash；Pipe fitting after first wash is neutralized；Second wash is carried out to treated pipe fitting is neutralized；Pipe fitting is dried up.The present invention can carry out cleaning before copper plating to pipe fitting in the case where not influencing pipe fitting quality.
Description
Technical field
The invention belongs to processing technique field, in particular to a kind of pipe fitting cleaning before copper plating method.
Background technique
Between metal tube is electroplated, need to carry out cleaning before copper plating to pipe fitting, to remove the various of tube surface
Impurity and greasy dirt.
Usually, pipe fitting needs to apply antirust oil on the surface of pipe fitting, if pipe fitting is long before storing warehouse entry library
Between be stored in warehouse, antirust oil will the surface of pipe fitting formed chelate.The chelate very not easy cleaning, it usually needs
It is cleaned using the means that polishing, sandblasting etc. polish to tube surface, so not only long processing period, can also damage pipe
Part causes the quality of pipe fitting to decline.
Summary of the invention
The embodiment of the invention provides a kind of pipe fitting cleaning before copper plating methods, can be right in the case where not influencing pipe fitting quality
Pipe fitting carries out cleaning before copper plating.The technical solution is as follows:
The embodiment of the invention provides a kind of pipe fitting cleaning before copper plating method, the cleaning method includes:
Pipe fitting is heated；
After the pipe fitting is cooling, pickling is carried out to the pipe fitting；
The pipe fitting after pickling is subjected to first wash；
The pipe fitting after first wash is neutralized；
To neutralizing that treated, the pipe fitting carries out second wash；
The pipe fitting is dried up.
It is optionally, described that pipe fitting is heated, comprising:
The pipe fitting is sent into heating furnace；
The temperature of the heating furnace is increased to 350-450 DEG C, and keeps the temperature 1-3 hours；
The temperature of the heating furnace is increased to 570-600 DEG C, and keeps the temperature 2-5 hours.
Optionally, the cleaning method includes:
After the temperature of hot stove to be added naturally cools to room temperature, the pipe fitting is taken out from the heating furnace, so that described
Pipe fitting naturally cools to room temperature.
It is optionally, described that pickling is carried out to the pipe fitting, comprising:
The pipe fitting is sent into descaling bath, carries out first time pickling；
The pipe fitting is taken out from the descaling bath, purges the inner wall of the pipe fitting；
The pipe fitting is fed again into the descaling bath, and carries out second of pickling.
Optionally, the first time pickling, comprising:
By the pickling solution control in the descaling bath at 18-25 DEG C, pipe fitting 10-15 minutes described in pickling.
Optionally, the pickling solution includes at least hydrochloric acid, sulfuric acid and acidic cleaner, and the concentration of the hydrochloric acid is 100~
120ml/l, the concentration of the sulfuric acid are 80~100ml/l.
Optionally, second of pickling, comprising:
By the pickling solution control in the descaling bath at 18-25 DEG C, pipe fitting 30-45 minutes described in pickling.
Optionally, the inner wall of the purging pipe fitting, comprising:
It is purged inner wall 1-3 minutes of the pipe fitting using vapor, the temperature of the vapor is 100 DEG C, and the water steams
The air pressure of gas is 1-3MPa.
Optionally, the first wash, comprising:
The pipe fitting is rinsed 10-30 seconds by hydraulic giant, and the water temperature of the hydraulic giant is room temperature；
The pipe fitting is sent into hot water storgae and is cleaned 3-5 times, the water temperature in the hot water storgae is 70-100 DEG C.
Optionally, the second wash, comprising:
The pipe fitting is sent into hot water storgae and is cleaned 3-5 times, the water temperature in the hot water storgae is 70-100 DEG C；
The pipe fitting is rinsed 10-30 seconds by hydraulic giant, and the water temperature of the hydraulic giant is room temperature.
Technical solution provided in an embodiment of the present invention has the benefit that
When provided cleaning method carries out cleaning before copper plating to pipe fitting through the embodiment of the present invention, pipe fitting is carried out first
High-temperature process, to burn the chelate on tube surface, in order to subsequent removing.Then acid is carried out to the pipe fitting after high-temperature process
It washes, with the chelate on cleansing pipe fitting surface.Then to pipe fitting carry out first wash, with rinse out the acidic materials on pipe fitting and
Remaining impurity is convenient for subsequent neutralisation treatment.It thoroughly washes the acidic materials on pipe fitting by neutralisation treatment, and passes through the
Secondary washing, to rinse out the alkaline matter on pipe fitting.Finally pipe fitting is dried up, to obtain the pipe fitting that cleaning finishes.Namely
It says, cleaning method provided by the embodiment of the present invention, is burnt the chelate of tube surface by the means of high-temperature heating, so that
Subsequent pickling can be removed easily.Also, not due to heating, pickling, washing, neutralisation treatment, the process of drying
Polishing to the surface of pipe fitting is understood, so will not influence the quality of pipe fitting.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of flow chart of pipe fitting cleaning before copper plating method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another pipe fitting cleaning before copper plating method provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of pipe fitting cleaning before copper plating methods, as shown in Figure 1, cleaning method includes:
Step 101: pipe fitting is heated.
Step 102: after pipe fitting is cooling, pickling being carried out to pipe fitting.
Step 103: the pipe fitting after pickling is subjected to first wash.
Step 104: the pipe fitting after first wash is neutralized.
Step 105: carrying out second wash to treated pipe fitting is neutralized.
Step 106: pipe fitting is dried up.
When provided cleaning method carries out cleaning before copper plating to pipe fitting through the embodiment of the present invention, pipe fitting is carried out first
High-temperature process, to burn the chelate on tube surface, in order to subsequent removing.Then acid is carried out to the pipe fitting after high-temperature process
It washes, with the chelate on cleansing pipe fitting surface.Then to pipe fitting carry out first wash, with rinse out the acidic materials on pipe fitting and
Remaining impurity is convenient for subsequent neutralisation treatment.It thoroughly washes the acidic materials on pipe fitting by neutralisation treatment, and passes through the
Secondary washing, to rinse out the alkaline matter on pipe fitting.Finally pipe fitting is dried up, to obtain the pipe fitting that cleaning finishes.Namely
It says, cleaning method provided by the embodiment of the present invention, is burnt the chelate of tube surface by the means of high-temperature heating, so that
Subsequent pickling can be removed easily.Also, not due to heating, pickling, washing, neutralisation treatment, the process of drying
Polishing to the surface of pipe fitting is understood, so will not influence the quality of pipe fitting.
Fig. 2 is the flow chart of another pipe fitting cleaning before copper plating method provided in an embodiment of the present invention, in conjunction with Fig. 2, the cleaning
Method includes:
Step 201: pipe fitting is sent into heating furnace.
Optionally, when heating pipe fitting, the distance between two neighboring pipe fitting is not less than 30mm, to guarantee each pipe fitting
It can sufficiently be heated.
Step 202: the temperature of heating furnace being increased to 350-450 DEG C, and keeps the temperature 1-3 hours.
It should be noted that the soaking time in step 202, after referring to that the temperature of heating furnace is increased to 350-450 DEG C
Continue soaking time.
Step 203: the temperature of heating furnace being increased to 570-600 DEG C, and keeps the temperature 2-5 hours.
It should be noted that the soaking time in step 203, after referring to that the temperature of heating furnace is increased to 570-600 DEG C
Continue soaking time.
It is realized by step 201-203 and pipe fitting is heated, the chelate on tube surface can be burnt in this way, with
Convenient for subsequent removing.
Step 204: after the temperature of hot stove to be added naturally cools to room temperature, pipe fitting being taken out from heating furnace, so that pipe fitting
Naturally cool to room temperature.
It is cooling that pipe fitting is realized by step 204.
In above-mentioned implementation, it is first shut off heating furnace, so that the furnace body temperature in heating furnace naturally cools to room temperature,
Then pipe fitting is taken out again from heating furnace, and continues to stand pipe fitting, until pipe fitting naturally cools to room temperature.
Step 205: pipe fitting being sent into descaling bath, carries out first time pickling.
In this way, can corrode and loosen the chelate of tube surface, in order to which chelate is blown off pipe by step 206
Part.
When specific implementation, pipe fitting inclination is hung in descaling bath for 5-15 °, so that pipe fitting can smoothly slide into, is avoided
Evoke pickling solution.
Specifically, the pickling solution in descaling bath is controlled at 18-25 DEG C, pickling pipe fitting 10-15 minutes.
Optionally, pickling solution includes at least hydrochloric acid, sulfuric acid and acidic cleaner, the concentration of hydrochloric acid can for 100~
120ml/l, the concentration of sulfuric acid can be 80~100ml/l.
Step 206: pipe fitting being taken out from descaling bath, purges the inner wall of pipe fitting.
When specific implementation, using inner wall 1-3 minutes of vapor purging pipe fitting, the temperature of vapor was 100 DEG C, vapor
Air pressure be 1-3MPa.
In above-mentioned implementation, since the chelate of pipe fitting inner wall is thicker, so after through first time pickling, pipe fitting
Inner wall can also have the chelate that part has loosened, and need the means by purging, the chelate of pipe fitting inner wall is blown off.
Step 207: pipe fitting being fed again into descaling bath, and carries out second of pickling.
In this way, can further corrode the remaining chelate of tube surface, the chelate to guarantee tube surface is thorough
Removal.
When specific implementation, pipe fitting is hung in descaling bath using method identical with step 205, and by the acid in descaling bath
Washing lotion is controlled at 18-25 DEG C, pickling pipe fitting 30-45 minutes.
Optionally, pickling solution used in second of pickling can be identical as pickling solution used in first time pickling.
Step 208: the pipe fitting after pickling is subjected to first wash.
In this way, the pickling solution of tube surface can tentatively be washed away, in order to the execution of step 209.
Specifically, step 208 can be realized by following steps:
Firstly, being rinsed pipe fitting 10-30 seconds by hydraulic giant, the water temperature of hydraulic giant is room temperature.Optionally, hydraulic giant can be with water receiving dragon
Head is directly rinsed by tap water, in order to operate.
Then, pipe fitting is sent into hot water storgae and is cleaned 3-5 times, the water temperature in hot water storgae is 70-100 DEG C
Step 209: the pipe fitting after first wash is neutralized.
In this way, the pickling solution of tube surface remnants can be completely removed.
Optionally, the time of neutralisation treatment can be 1-3 minutes, and neutralizer can be sodium carbonate liquor, sodium carbonate liquor
Mass concentration be 8-15%.
Step 210: carrying out second wash to treated pipe fitting is neutralized.
In this way, the remaining neutralizer of tube surface can be washed away.
Specifically, step 210 can be realized by following steps:
It is cleaned 3-5 times firstly, pipe fitting is sent into hot water storgae, the water temperature in hot water storgae is 70-100 DEG C.
Then, it is rinsed pipe fitting 10-30 seconds by hydraulic giant, the water temperature of hydraulic giant is room temperature.
Step 211: pipe fitting is dried up.
When specific implementation, pipe fitting is dried up by clean anhydrous oil-free compressed air.
When provided cleaning method carries out cleaning before copper plating to pipe fitting through the embodiment of the present invention, pipe fitting is carried out first
High-temperature process, to burn the chelate on tube surface, in order to subsequent removing.Then acid is carried out to the pipe fitting after high-temperature process
It washes, with the chelate on cleansing pipe fitting surface.Then to pipe fitting carry out first wash, with rinse out the acidic materials on pipe fitting and
Remaining impurity is convenient for subsequent neutralisation treatment.It thoroughly washes the acidic materials on pipe fitting by neutralisation treatment, and passes through the
Secondary washing, to rinse out the alkaline matter on pipe fitting.Finally pipe fitting is dried up, to obtain the pipe fitting that cleaning finishes.Namely
It says, cleaning method provided by the embodiment of the present invention, is burnt the chelate of tube surface by the means of high-temperature heating, so that
Subsequent pickling can be removed easily.Also, not due to heating, pickling, washing, neutralisation treatment, the process of drying
Polishing to the surface of pipe fitting is understood, so will not influence the quality of pipe fitting.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of pipe fitting cleaning before copper plating method, which is characterized in that the cleaning method includes:
Pipe fitting is heated；
After the pipe fitting is cooling, pickling is carried out to the pipe fitting；
The pipe fitting after pickling is subjected to first wash；
The pipe fitting after first wash is neutralized；
To neutralizing that treated, the pipe fitting carries out second wash；
The pipe fitting is dried up.
2. cleaning method according to claim 1, which is characterized in that described to be heated to pipe fitting, comprising:
The pipe fitting is sent into heating furnace；
The temperature of the heating furnace is increased to 350-450 DEG C, and keeps the temperature 1-3 hours；
The temperature of the heating furnace is increased to 570-600 DEG C, and keeps the temperature 2-5 hours.
3. cleaning method according to claim 2, which is characterized in that the cleaning method includes:
After the temperature of hot stove to be added naturally cools to room temperature, the pipe fitting is taken out from the heating furnace, so that the pipe fitting
Naturally cool to room temperature.
4. cleaning method according to claim 1, which is characterized in that described to carry out pickling to the pipe fitting, comprising:
The pipe fitting is sent into descaling bath, carries out first time pickling；
The pipe fitting is taken out from the descaling bath, purges the inner wall of the pipe fitting；
The pipe fitting is fed again into the descaling bath, and carries out second of pickling.
5. cleaning method according to claim 4, which is characterized in that the first time pickling, comprising:
By the pickling solution control in the descaling bath at 18-25 DEG C, pipe fitting 10-15 minutes described in pickling.
6. cleaning method according to claim 5, which is characterized in that the pickling solution includes at least hydrochloric acid, sulfuric acid and acid
Property cleaning agent, the concentration of the hydrochloric acid is 100~120ml/l, and the concentration of the sulfuric acid is 80~100ml/l.
7. cleaning method according to claim 6, which is characterized in that second of pickling, comprising:
By the pickling solution control in the descaling bath at 18-25 DEG C, pipe fitting 30-45 minutes described in pickling.
8. cleaning method according to claim 4, which is characterized in that the inner wall of the purging pipe fitting, comprising:
It is purged inner wall 1-3 minutes of the pipe fitting using vapor, the temperature of the vapor is 100 DEG C, the vapor
Air pressure is 1-3MPa.
9. cleaning method according to claim 4, which is characterized in that the first wash, comprising:
The pipe fitting is rinsed 10-30 seconds by hydraulic giant, and the water temperature of the hydraulic giant is room temperature；
The pipe fitting is sent into hot water storgae and is cleaned 3-5 times, the water temperature in the hot water storgae is 70-100 DEG C.
10. cleaning method according to claim 4, which is characterized in that the second wash, comprising:
The pipe fitting is sent into hot water storgae and is cleaned 3-5 times, the water temperature in the hot water storgae is 70-100 DEG C；
The pipe fitting is rinsed 10-30 seconds by hydraulic giant, and the water temperature of the hydraulic giant is room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006630.2A CN109609988B (en) | 2019-01-04 | 2019-01-04 | Pipe fitting cleaning method before plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006630.2A CN109609988B (en) | 2019-01-04 | 2019-01-04 | Pipe fitting cleaning method before plating |
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| Publication Number | Publication Date |
|---|---|
| CN109609988A true CN109609988A (en) | 2019-04-12 |
| CN109609988B CN109609988B (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910006630.2A Active CN109609988B (en) | 2019-01-04 | 2019-01-04 | Pipe fitting cleaning method before plating |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1344787A (en) * | 1971-09-02 | 1974-01-23 | Dart Ind Inc | Method of removing metal ions from a solution |
| CN1386907A (en) * | 2001-05-18 | 2002-12-25 | 天津市宇泰化工高科技有限公司 | Liquid for removing oil and rust from metal and its preparing process |
| CN107502905A (en) * | 2017-10-25 | 2017-12-22 | 苏州华丰不锈钢紧固件有限公司 | A kind of acid cleaning process for effectively removing thick oxide film |
| CN108441865A (en) * | 2018-03-09 | 2018-08-24 | 安徽金环电气设备有限责任公司 | A kind of handware recycling derusting pickle and its configuration method |
-
2019
- 2019-01-04 CN CN201910006630.2A patent/CN109609988B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1344787A (en) * | 1971-09-02 | 1974-01-23 | Dart Ind Inc | Method of removing metal ions from a solution |
| CN1386907A (en) * | 2001-05-18 | 2002-12-25 | 天津市宇泰化工高科技有限公司 | Liquid for removing oil and rust from metal and its preparing process |
| CN107502905A (en) * | 2017-10-25 | 2017-12-22 | 苏州华丰不锈钢紧固件有限公司 | A kind of acid cleaning process for effectively removing thick oxide film |
| CN108441865A (en) * | 2018-03-09 | 2018-08-24 | 安徽金环电气设备有限责任公司 | A kind of handware recycling derusting pickle and its configuration method |
Non-Patent Citations (1)
| Title |
|---|
| 网名: "锅底的油垢怎么去除", 《百度经验》 * |
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| CN109609988B (en) | 2020-07-07 |
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