CN110484919A - The method and surface of decoating liquid and its stripping titanium-containing film are formed with the strip method of the substrate of titanium-containing film - Google Patents
The method and surface of decoating liquid and its stripping titanium-containing film are formed with the strip method of the substrate of titanium-containing film Download PDFInfo
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- CN110484919A CN110484919A CN201810457737.4A CN201810457737A CN110484919A CN 110484919 A CN110484919 A CN 110484919A CN 201810457737 A CN201810457737 A CN 201810457737A CN 110484919 A CN110484919 A CN 110484919A
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
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- C23F1/16—Acidic compositions
- C23F1/26—Acidic compositions for etching refractory metals
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- 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
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/063—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors heterocyclic compounds
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- 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
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/068—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors compounds containing a C=C bond
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- 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
- C23G1/10—Other heavy metals
- C23G1/106—Other heavy metals refractory metals
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- 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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/16—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions using inhibitors
- C23G1/18—Organic inhibitors
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- 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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/20—Other heavy metals
- C23G1/205—Other heavy metals refractory metals
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- 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
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
- C23G1/26—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions using inhibitors
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Abstract
The present invention provides a kind of decoating liquid, the decoating liquid includes peroxide, ammonium salt, adjuvant and corrosion inhibiter, the mass percent of the peroxide is 5~10%, the mass percent of the ammonium salt is 10~20%, the mass percent of the adjuvant is 0.2~1%, and the mass percent of the corrosion inhibiter is 0.2~0.5%.Present invention simultaneously provides a kind of strip methods that a kind of method and surface using decoating liquid stripping titanium-containing film is formed with the substrate of titanium-containing film.The method and above-mentioned strip method of above-mentioned decoating liquid and its stripping titanium-containing film can effectively remove the titanium-containing film above metal or plastic rubber substrate, be suitble to produce in enormous quantities.
Description
Technical field
The present invention relates to the substrates that the method and surface of a kind of decoating liquid and its stripping titanium-containing film are formed with titanium-containing film
Strip method.
Background technique
Coating process is had a wide range of applications with the excellent appearance of its film plating layer and corrosion resistance in industrial circle.Such as not
Titanium-containing film is plated on rust steel substrate, because of titanium-containing film hardness with higher, good wearability and higher chemistry
Stability is greatly improved the appearance and service performance of stainless steel substrate.
It usually needs to carry out strip to film plating layer in a case where: in process of production due to accidentalia, be plated
Film layer does not meet quality requirements, and to reduce loss, save the cost needs to strip the film layer, and carries out plated film again to workpiece.
Currently, the method for industry removal plated film is mainly electrolytic deplating process method, however, the production energy consumption of electrolytic deplating process method is big,
It is higher to the required precision of jig design, be not suitable for producing in enormous quantities.In addition, electrolytic deplating process method is only capable of on removal metal base
Plated film not can be removed the plated film on plastic parts for the composite members of metal and plastic cement.
Summary of the invention
In consideration of it, it is necessary to provide a kind of decoating liquid and its methods for stripping titanium-containing film, to solve the above problems.
In addition, there is a need to provide a kind of strip method that surface is formed with the substrate of titanium-containing film.
A kind of decoating liquid, the decoating liquid include peroxide, ammonium salt, adjuvant and corrosion inhibiter, the peroxide
Mass percent is 5~10%, and the mass percent of the ammonium salt is 10~20%, and the mass percent of the adjuvant is
0.2~1%, the mass percent of the corrosion inhibiter is 0.2~0.5%.
A method of stripping titanium-containing film comprising the substrate for making decoating liquid be formed with titanium-containing film with a surface connects
The step of touching；The decoating liquid includes peroxide, ammonium salt, adjuvant and corrosion inhibiter, the mass percent of the peroxide
It is 5~10%, the mass percent of the ammonium salt is 10~20%, and the mass percent of the adjuvant is 0.2~1%, institute
The mass percent for stating corrosion inhibiter is 0.2~0.5%；The temperature of the decoating liquid is 15~30 DEG C, time of contact is 10~
25 minutes.
A kind of surface is formed with the strip method of the substrate of titanium-containing film, the titanium-containing film include be sequentially formed in it is described
Prime coat, transition zone and color layers on substrate, the strip method the following steps are included: prepare the first decoating liquid and respectively
Two decoating liquids, wherein first decoating liquid includes peroxide, ammonium salt, the first adjuvant and the first corrosion inhibiter, the peroxide
The mass percent of compound is 5~10%, and the mass percent of the ammonium salt is 10~20%, the quality of first adjuvant
Percentage is 0.2~1%, and the mass percent of first corrosion inhibiter is 0.2~0.5%；Second decoating liquid includes height
Manganate, alkaline matter, the second adjuvant and the second corrosion inhibiter, the mass percent of the permanganate is 1~5%, described
The mass percent of alkaline matter is 10~20%, and the mass percent of second adjuvant is 0.5~1%, described second
The mass percent of corrosion inhibiter is 0.2~0.5%；The substrate is in contact with first decoating liquid, to strip the face
Chromatograph；The substrate is cleaned；The substrate is in contact with second decoating liquid, to strip the transition zone；It is right
The substrate is cleaned；The substrate is in contact with first decoating liquid again, to strip the prime coat.
The method and above-mentioned surface of above-mentioned decoating liquid and its stripping titanium-containing film are formed with moving back for the substrate of titanium-containing film
Electroplating method can effectively remove the titanium-containing film above metal or plastic rubber substrate, produce less energy-consuming, want to the precision of jig design
It asks not high, is suitble to produce in enormous quantities.
Detailed description of the invention
Fig. 1 is the substrate of embodiment of the present invention and the structural schematic diagram of titanium-containing film.
Fig. 2 is the flow chart for the strip method that the surface of embodiment of the present invention is formed with the substrate of titanium-containing film.
Main element symbol description
| Substrate | 100 |
| Prime coat | 10 |
| Transition zone | 20 |
| Color layers | 30 |
Specific embodiment
Decoating liquid of the invention is suitable for stripping the titanium-containing film for being formed in substrate surface.Fig. 1 is please referred to, substrate 100 is
One of ferrous alloy (such as stainless steel), copper, copper alloy and plastic cement are a variety of, for example, substrate 100 can be ferrous alloy and modeling
The composite members of glue.There are the multiple film layers formed by vacuum coating mode on 100 surface of substrate.The multiple film layer is followed successively by
Prime coat 10, transition zone 20 and color layers 30, the prime coat 10 are titanium coating, and the transition zone 20 is chromium nitride
(TiCrN) layer, the color layers 30 are the mixed coating of titanium carbonitride (TiCN) and titanium nitride (TiN).
Decoating liquid of the invention includes standby the first decoating liquid and the second decoating liquid of assignment system, first decoating liquid and this
Two decoating liquids use individually.
First decoating liquid includes peroxide, ammonium salt, the first adjuvant and the first corrosion inhibiter.
The peroxide is oxidant, and the peroxide can be selected from as at least one in hydrogen peroxide, sodium peroxide
Kind, preferably hydrogen peroxide.The mass percent of the peroxide is 5~10%.
The ammonium salt is etchant, and the ammonium salt can be selected from as one or more of ammonium chloride, ammonium fluoride and ammonium sulfate,
Preferably ammonium chloride.The mass percent of the ammonium salt is 10~20%.
First adjuvant can be selected from as ethylenediamine tetra-acetic acid (EDTA), sodium potassium tartrate tetrahydrate, sodium gluconate and lemon
One or more of sour sodium, preferably EDTA.The mass percent of first adjuvant is 0.2~1%.Described first is auxiliary
Auxiliary agent can reduce the surface tension of the first decoating liquid, to promote reactive ion rapid osmotic to be reacted into titanium-containing film, add
The dissolution of fast titanium-containing film.
First corrosion inhibiter can be selected from as at least one of hexamethylenetetramine, benzotriazole (BTA), preferably
Hexamethylenetetramine.The mass percent of first corrosion inhibiter is 0.2~0.5%.First corrosion inhibiter is to protect
Substrate surface to strip is not corroded.
Above-mentioned first decoating liquid can use at normal temperature, be not required to heat, therefore reduce the decomposition of peroxide.In addition,
Stable substance is generated by the effect of hydrogen bond between peroxide and ammonium salt, further suppresses the decomposition of peroxide,
To improve the service life of medicament.
First decoating liquid can be by being dissolved in water for above-mentioned peroxide, ammonium salt, the first adjuvant and the first corrosion inhibiter
It is made.
The present invention proposes a kind of method for stripping titanium-containing film using above-mentioned first decoating liquid simultaneously comprising this
The step of one decoating liquid is in contact with the substrate 100 that a surface is formed with titanium-containing film.The material of the substrate can be iron-based conjunction
One of gold (such as stainless steel), copper, copper alloy and plastic cement are a variety of.The titanium-containing film can nitrogenize for titanium coating or carbon
The mixed coating of titanium and titanium nitride.The mode of the contact can for by substrate 100 leaching be placed in first decoating liquid or by this first
Decoating liquid sprays on the surface of substrate 100.The temperature of first decoating liquid can be 15~30 DEG C, the first decoating liquid and substrate
The time of 100 contacts can be 10~25 minutes.Preferably, the temperature of first decoating liquid can be 20~25 DEG C, the first strip
The time that liquid is contacted with substrate 100 can be 15~20 minutes.
Second decoating liquid includes permanganate, alkaline matter, the second adjuvant and the second corrosion inhibiter.
As oxidant, the permanganate can be selected from as potassium permanganate, sodium permanganate and permanganic acid the permanganate
One of ammonium is a variety of, and the mass percent of the permanganate is 1~5%.
The alkaline matter is as complexing agent, and the alkaline matter is hydroxide, such as sodium hydroxide, potassium hydroxide or two
The combination of person, preferably sodium hydroxide.The mass percent of the alkaline matter is 10~20%.
Second adjuvant can be selected from as one of EDTA, sodium potassium tartrate tetrahydrate, sodium gluconate and sodium citrate or
It is several, preferably EDTA.The mass percent of second adjuvant is 0.5~1%.Second adjuvant can reduce by
The surface tension of two decoating liquids accelerates titanium-containing film to promote reactive ion rapid osmotic to be reacted into titanium-containing film
Dissolution.
Second corrosion inhibiter can be selected from as at least one of BTA, hexamethylenetetramine, preferably BTA, and described second
The mass percent of corrosion inhibiter is 0.2~0.5%.Second corrosion inhibiter is to protect the substrate surface to strip not by corruption
Erosion.
Chromium (Cr) dissolution after permanganate and titanium-containing film in above-mentioned second decoating liquid react, in titanium-containing film
In decoating liquid, the alkaline matter can generate complex compound with chromium, therefore be conducive to the continued dissolution of chromium in titanium-containing film, accelerate
The progress of reaction, shortens the production time.
Second decoating liquid can be by molten by above-mentioned permanganate, alkaline matter, the second adjuvant and the second corrosion inhibiter
It is made in water.
The present invention proposes a kind of method for stripping titanium-containing film using above-mentioned second decoating liquid simultaneously comprising this
The step of two decoating liquids are in contact with the substrate 100 that a surface is formed with titanium-containing film.The material of the substrate can be iron-based conjunction
One of gold (such as stainless steel), copper, copper alloy and plastic cement are a variety of.The titanium-containing film can be titanium nitride layers of chrome.It is described to connect
The mode of touching can be placed in second decoating liquid to soak substrate 100 or spray second decoating liquid on the surface of substrate 100.
The temperature of second decoating liquid can be 75~85 DEG C, and the time that decoating liquid is contacted with the substrate can be 45~55 minutes.
The present invention proposes that a kind of surface is formed with the strip method of the substrate 100 of titanium-containing film simultaneously, and substrate 100 is iron-based
One of alloy (such as stainless steel), copper, copper alloy and plastic cement are a variety of.Have on 100 surface of substrate and passes through vacuum coating side
Multiple film layers that formula is formed.The multiple film layer is followed successively by prime coat 10, transition zone 20 and color layers 30, and the prime coat 10 is
Titanium coating, the transition zone 20 are titanium nitride layers of chrome, and the color layers 30 are the mixed coating of titanium carbonitride and titanium nitride.It please be same
When referring to Fig.1 with Fig. 2, the strip method the following steps are included:
S110 prepares the first decoating liquid and the second decoating liquid respectively.First decoating liquid and the second decoating liquid may respectively be as
Upper first decoating liquid and the second decoating liquid.
Substrate 100 is in contact by S120 with above-mentioned first decoating liquid.
Substrate 100 is in contact with above-mentioned first decoating liquid, to strip the color layers 30 on substrate 100.The contact
Mode can be placed in first decoating liquid to soak substrate 100 or spray first decoating liquid in the substrate 100
Surface.The temperature of first decoating liquid can be 15~30 DEG C, and the time that the first decoating liquid is contacted with the substrate 100 can be 10
~25 minutes.
S130 cleans the substrate 100.
In the present embodiment, one or many cleanings can be carried out to the substrate 100 with water.
The substrate 100 is in contact by S140 with above-mentioned second decoating liquid.
Substrate 100 is in contact with above-mentioned second decoating liquid, to strip the transition zone 20 on the substrate 100.It is described to connect
The mode of touching can be placed in second decoating liquid to soak substrate 100 or spray second decoating liquid in the substrate
100 surface.The temperature of second decoating liquid can be 75~85 DEG C, and the time that decoating liquid is contacted with the substrate 100 can be
45~55 minutes.
S150 cleans the substrate 100.
In the present embodiment, first the substrate 100 is cleaned with water, is reused in solution of sodium bisulfite progress
And cleaning, then cleaned again with water.
The substrate 100 is in contact by S160 with above-mentioned first decoating liquid again.
The substrate 100 is in contact with above-mentioned first decoating liquid again, to strip the prime coat on the substrate 100
10.The mode of the contact can exist for the leaching of substrate 100 to be placed in first decoating liquid or spray first decoating liquid
The surface of the substrate 100.The temperature of first decoating liquid can be 15~30 DEG C, and the first decoating liquid connects with the substrate 100
The time of touching can be 10~25 minutes.
After the step, the substrate 100 is cleaned and dried with water.
Below by embodiment, the present invention is described in more detail.
Embodiment 1
The first decoating liquid and the second decoating liquid of decoating liquid are prepared respectively.First decoating liquid is comprising mass percent
5% hydrogen peroxide, the ammonium chloride that mass percent is 10%, the EDTA and mass percent that mass percent is 0.2%
For 0.2% hexamethylenetetramine.Second decoating liquid includes the potassium permanganate that mass percent is 1%, mass percent
For 10% sodium hydroxide, the BTA that the EDTA and mass percent that mass percent is 0.5% are 0.2%.
First the stainless steel substrate sample leaching that surface forms titanium-containing film is placed in the first decoating liquid, to strip on sample
Color layers.The temperature of first decoating liquid is 30 DEG C, and soaking the time set is 25 minutes.Then, the sample is washed with water.
Then, sample leaching is placed in the second decoating liquid, to strip the transition zone on sample.The temperature of second decoating liquid
Degree is 85 DEG C, and soaking the time set is 55 minutes.Then, the sample is first washed with water, then in solution of sodium bisulfite and clearly
The sample is washed, then washes with water the sample again.
Then, the sample is soaked again and is placed in the first decoating liquid, to strip the prime coat on sample.First decoating liquid
Temperature be 30 DEG C, soaking time for setting is 25 minutes.Then, water cleaning and drying are carried out to the sample.
Embodiment 2
The first decoating liquid and the second decoating liquid of decoating liquid are prepared respectively.First decoating liquid is comprising mass percent
10% hydrogen peroxide, the ammonium chloride that mass percent is 20%, the EDTA and mass percent that mass percent is 1%
For 0.5% hexamethylenetetramine.Second decoating liquid includes the potassium permanganate that mass percent is 5%, mass percent
For 20% sodium hydroxide, the BTA that the EDTA and mass percent that mass percent is 1% are 0.5%.
First the stainless steel substrate sample leaching that surface forms titanium-containing film is placed in the first decoating liquid, to strip on sample
Color layers.The temperature of first decoating liquid is 15 DEG C, and soaking the time set is 10 minutes.Then, the sample is washed with water.
Then, sample leaching is placed in the second decoating liquid, to strip the transition zone on sample.The temperature of second decoating liquid
Degree is 75 DEG C, and soaking the time set is 45 minutes.Then, the sample is first washed with water, then in solution of sodium bisulfite and clearly
The sample is washed, then washes with water the sample again.
Then, the sample is soaked again and is placed in the first decoating liquid, to strip the prime coat on sample.First decoating liquid
Temperature be 15 DEG C, soaking time for setting is 10 minutes.Then, water cleaning and drying are carried out to the sample.
Embodiment 3
The first decoating liquid and the second decoating liquid of decoating liquid are prepared respectively.First decoating liquid is comprising mass percent
8% hydrogen peroxide, the ammonium chloride that mass percent is 15%, the EDTA and mass percent that mass percent is 0.5%
For 0.3% hexamethylenetetramine.Second decoating liquid includes the potassium permanganate that mass percent is 3%, mass percent
For 15% sodium hydroxide, the BTA that the EDTA and mass percent that mass percent is 0.8% are 0.3%.
First the stainless steel substrate sample leaching that surface forms titanium-containing film is placed in the first decoating liquid, to strip on sample
Color layers.The temperature of first decoating liquid is 25 DEG C, and soaking the time set is 20 minutes.Then, the sample is washed with water.
Then, sample leaching is placed in the second decoating liquid, to strip the transition zone on sample.The temperature of second decoating liquid
Degree is 80 DEG C, and soaking the time set is 50 minutes.Then, the sample is first washed with water, then in solution of sodium bisulfite and clearly
The sample is washed, then washes with water the sample again.
Then, the sample is soaked again and is placed in the first decoating liquid, to strip the prime coat on sample.First decoating liquid
Temperature be 20 DEG C, soaking time for setting is 15 minutes.Then, water cleaning and drying are carried out to the sample.
Embodiment 4-6
The decoating liquid in embodiment 1-3 and strip condition is respectively adopted, unlike, leaching in embodiment 1-3 is set respectively
The mode of stripping titanium-containing film replaces with the mode of spray stripping.
Embodiment 7-9
The decoating liquid in embodiment 1-3 and strip condition is respectively adopted, unlike, respectively by embodiment 1-3 not
Rust steel sample replaces with plastic cement sample.
Sample in Examples 1 to 9 after stripping titanium-containing film shows the surface of sample through XRD (X-ray diffraction) test
Without titanium elements, it was demonstrated that strip is clean for the titanium-containing film.
The decoating liquid of the present invention include the first decoating liquid and the second decoating liquid, first decoating liquid include peroxide,
Ammonium salt, the first adjuvant and the first corrosion inhibiter, second decoating liquid include permanganate, alkaline matter, the second adjuvant with
Second corrosion inhibiter.Above-mentioned decoating liquid and using the decoating liquid stripping titanium-containing film method can effectively remove metal or plastic cement base
Contain titanium coating above material, produces less energy-consuming, it is not high to the required precision of jig design, it is suitble to produce in enormous quantities.
It is appreciated that in other embodiments, when only needing the color layers 30 or prime coat 10 on stripping substrate 100,
Can be used alone first decoating liquid.
It is appreciated that in other embodiments, when only needing the transition zone 20 on stripping substrate 100, can be used alone
Second decoating liquid.
In addition, for those of ordinary skill in the art, can make in accordance with the technical idea of the present invention other each
Kind changes and modifications, and all these changes and deformation all should belong to the protection scope of the claims in the present invention.
Claims (10)
1. a kind of decoating liquid, it is characterised in that: the decoating liquid includes peroxide, ammonium salt, adjuvant and corrosion inhibiter, the mistake
The mass percent of oxide is 5~10%, and the mass percent of the ammonium salt is 10~20%, the quality hundred of the adjuvant
Divide than being 0.2~1%, the mass percent of the corrosion inhibiter is 0.2~0.5%.
2. decoating liquid as described in claim 1, it is characterised in that: it is hydrogen peroxide, sodium peroxide that the peroxide, which is selected from,
At least one of.
3. decoating liquid as described in claim 1, it is characterised in that: it is ammonium chloride, ammonium fluoride and ammonium sulfate that the ammonium salt, which is selected from,
One or more of.
4. decoating liquid as described in claim 1, it is characterised in that: it is ethylenediamine tetra-acetic acid, tartaric acid that the adjuvant, which is selected from,
One or more of potassium sodium, sodium gluconate and sodium citrate；It is hexamethylenetetramine, three nitrogen of benzo that the corrosion inhibiter, which is selected from,
At least one of azoles.
5. a kind of method for stripping titanium-containing film comprising the substrate for making decoating liquid be formed with titanium-containing film with a surface is in contact
The step of；The decoating liquid is decoating liquid described in any one of claim 1-4；The temperature of the decoating liquid is 15~30
DEG C, the time of contact is 10~25 minutes.
6. a kind of surface is formed with the strip method of the substrate of titanium-containing film, the titanium-containing film includes being sequentially formed in the base
Prime coat, transition zone and color layers on material, the strip method the following steps are included:
The first decoating liquid and the second decoating liquid are prepared respectively, wherein first decoating liquid includes peroxide, ammonium salt, first
Adjuvant and the first corrosion inhibiter, the mass percent of the peroxide are 5~10%, and the mass percent of the ammonium salt is 10
~20%, the mass percent of first adjuvant is 0.2~1%, the mass percent of first corrosion inhibiter is 0.2~
0.5%；Second decoating liquid includes permanganate, alkaline matter, the second adjuvant and the second corrosion inhibiter, the permanganate
Mass percent be 1~5%, the mass percent of the alkaline matter is 10~20%, the quality of second adjuvant
Percentage is 0.5~1%, and the mass percent of second corrosion inhibiter is 0.2~0.5%；
The substrate is in contact with first decoating liquid, to strip the color layers；
The substrate is cleaned；
The substrate is in contact with second decoating liquid, to strip the transition zone；
The substrate is cleaned；
The substrate is in contact with first decoating liquid again, to strip the prime coat.
7. strip method as claimed in claim 6, it is characterised in that: the prime coat is titanium coating, and the transition zone is
Titanium nitride layers of chrome, the color layers are the mixed coating of titanium carbonitride and titanium nitride.
8. strip method as claimed in claim 6, it is characterised in that: it is hydrogen peroxide, peroxidating that the peroxide, which is selected from,
At least one of sodium；The ammonium salt is selected from as one or more of ammonium chloride, ammonium fluoride and ammonium sulfate.
9. strip method as claimed in claim 6, it is characterised in that: it is potassium permanganate, permanganic acid that the permanganate, which is selected from,
One of sodium and ammonium permanganate are a variety of, and the alkaline matter is the combination of sodium hydroxide, potassium hydroxide or both.
10. strip method as claimed in claim 6, it is characterised in that: first adjuvant, second adjuvant difference
Selected from for one or more of ethylenediamine tetra-acetic acid, sodium potassium tartrate tetrahydrate, sodium gluconate and sodium citrate；First inhibition
Agent, second corrosion inhibiter are respectively selected from as at least one of hexamethylenetetramine, benzotriazole.
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| CN114763613A (en) * | 2021-12-13 | 2022-07-19 | 四川兴荣科科技有限公司 | Deplating liquid for removing metal cadmium plating layer and deplating method thereof |
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