CN106544667A - A kind of cold-reduced sheet surface passivation technology - Google Patents
A kind of cold-reduced sheet surface passivation technology Download PDFInfo
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- CN106544667A CN106544667A CN201611096428.6A CN201611096428A CN106544667A CN 106544667 A CN106544667 A CN 106544667A CN 201611096428 A CN201611096428 A CN 201611096428A CN 106544667 A CN106544667 A CN 106544667A
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- Prior art keywords
- cold
- reduced sheet
- parts
- additive
- passivator
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Classifications
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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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium
Abstract
The invention discloses a kind of cold-reduced sheet surface passivation technology, comprises the following steps：S1：Immersion；S2：Cleaning；S3：Sewage disposal；S4：Pickling；S5：Passivation, cold-reduced sheet after acidifying is carried out into the flash baking of 59 minutes at a temperature of 70 85 degrees Celsius, then cold-reduced sheet is put in paralysis facility and is passivated process, passivator, additive and pure water are added with the passivation liquid container of the paralysis facility, and the liquid of passivator, additive and pure water mixing is completely soaked cold-reduced sheet, wherein passivator, additive and pure water includes following composition by weight：34 56 parts of passivator, 18 24 parts of additive, 20 40 parts of pure water；S6：Spray S7：Rinsing；S8：Passivation test.The present invention is by soaking cold-reduced sheet with passivator and additive, and sprays cold rolling plate surface with activating agent so that the effect of the cold-reduced sheet passivation is relatively good, and the probability that defect or surface defect are split in side occurs in reduction.
Description
Technical field
The present invention relates to cold-reduced sheet passivating technique field, specially a kind of cold-reduced sheet surface passivation technology.
Background technology
Cold rolled sheet has many uses, such as automobile making, electric equipment products, rolling stock, aviation, precision instrument, canned food
Deng.
Cold-reduced sheet is the abbreviation of carbon structural steel cold-reduced sheet, also referred to as cold-reduced sheet, is commonly called as cold drawing, and cold drawing is by general
Logical carbon structural steels hot rolled strip, through the further cold rolling steel plate for making thickness less than 4mm.Due to rolling at normal temperatures, no
Iron scale is produced, therefore, cold drawing surface quality is good, and dimensional accuracy is high, makes annealing treatment in addition, its mechanical performance and manufacturability
Hot rolled steel sheet can be better than, in many fields, particularly household electrical appliances manufacture field, gradually replace hot rolled steel sheet with it.
Easily occur side after cold-reduced sheet of the prior art is passivated and split defect or surface defect, affect the attractive in appearance of cold-reduced sheet
Degree, reduces the service life of cold-reduced sheet, is unfavorable for the effectively utilizes of resource.
The content of the invention
It is an object of the invention to provide a kind of cold-reduced sheet surface passivation technology, to solve what is proposed in above-mentioned background technology
Problem.
For achieving the above object, the present invention provides following technical scheme：A kind of cold-reduced sheet surface passivation technology, including it is following
Step：
S1：The cold-reduced sheet for processing is put into immersion 30-120 minutes in soak, and soak is entered with heater by immersion
The temperature of soak is heated to 60 degrees Celsius from room temperature by row heating；
S2：Cleaning, the cold-reduced sheet that finishes of immersion is gripped to higher than at horizontal plane 1-2 rice from soak, and uses giant
Surface washing 3-6 minutes to cold-reduced sheet；
S3：Sewage disposal, the water that soak and giant are ejected is put together in dirty water collecting tank, is put in header tank
Effluent treatment plant is equipped with, is deposited being passed in purified water storage case through the water of effluent treatment plant；
S4：Pickling, the cold-reduced sheet for having rinsed is dried, and adds pickle in pickling unit, and the water in pickle carrys out self-cleaning
Change in water storage case, the cold-reduced sheet after drying is put in pickle carries out pickling processes, and the pickle after pickling is terminated
Purified treatment is carried out in being passed through pickling waste waterss processing equipment, the water after purification is also passed into being deposited in purified water storage case；
S5：Cold-reduced sheet after acidifying is carried out the flash baking of 5-9 minutes at a temperature of 70-85 degree Celsius by passivation, then will
Cold-reduced sheet is passivated process in being put into paralysis facility, be added with passivator, additive in the passivation liquid container of the paralysis facility
And pure water, and the liquid of passivator, additive and pure water mixing is completely soaked cold-reduced sheet, wherein passivator, additive and
Pure water includes following composition by weight：
Passivator 34-56 parts, additive 18-24 parts, pure water 20-40 parts；
S6：Cold-reduced sheet after passivator and additive immersion is gripped the spray at away from horizontal plane 1-2 rice by spray
Room, the temperature of spray chamber is 20-50 degree Celsius, and spray equipment is opened, and is filled with activating agent, using spray in spray equipment
Device is carried out to cold-reduced sheet around spray；
S7：Rinsing, the cold-reduced sheet after passivation are put in rinse bath, and the purified water being passed through in purified water storage case is mixed with rinsing liquid
Conjunction is rinsed to cold-reduced sheet, and the water after rinsing carries out the dirty water decontamination handles in being emitted into rinsing liquid defecator；
S8：Passivation test, after the cold-reduced sheet after rinsing is dried naturally at room temperature and placed no less than 24 hours, by cold-reduced sheet
It is put into salt mist experiment case to detect its decay resistance.
Preferably, the pickle in step S4 is hydrochloric acid.
Preferably, the passivator in step S5 includes following composition by weight：
Sodium nitrite 10-18 parts, the blunt 9-16 parts of trivalent chromium, sodium bicarbonate 5-8 parts, sodium acetate 4-7 parts；
Additive includes following composition by weight：
Zincate galvanizing 2-6 parts, trivalent chromium plating zinc 3-5 parts.
Preferably, the activating agent in step S6 includes following composition by weight：
TX-100 13-24 parts, OPEO 8-11 parts.
Compared with prior art, the invention has the beneficial effects as follows：Then the present invention first high temperature in the step of cleaning soak
It is rinsed with giant so that it is very thorough that the dirt on cold-reduced sheet surface itself is cleaned, beneficial to passivation technology below
Carrying out；By cold-reduced sheet being soaked with passivator and additive, and spray cold rolling plate surface with activating agent so that the cold-reduced sheet is blunt
The effect of change is relatively good, and the probability that defect or surface defect are split in side occurs in reduction；In the art, each sewage can all lead to
Crossing sewage purifier carries out purified treatment, and the water that purification is reused in subsequent processing is processed, and reaches cycling use of water
Environmentally friendly production theory.
Specific embodiment
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described enforcement
Example is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is common
The every other embodiment obtained under the premise of creative work is not made by technical staff, belongs to the model of present invention protection
Enclose.
Embodiment one
The present invention provides a kind of technical scheme：A kind of cold-reduced sheet surface passivation technology, comprises the following steps：
S1：Immersion, the cold-reduced sheet for processing is put in soak and is soaked 33 minutes, and soak is carried out adding with heater
The temperature of soak is heated to 60 degrees Celsius from room temperature by temperature；
S2：Cleaning, the cold-reduced sheet that finishes of immersion is gripped to higher than at horizontal plane 1-2 rice from soak, and uses giant
Surface washing 3 minutes to cold-reduced sheet；
S3：Sewage disposal, the water that soak and giant are ejected is put together in dirty water collecting tank, is put in header tank
Effluent treatment plant is equipped with, is deposited being passed in purified water storage case through the water of effluent treatment plant；
S4：Pickling, the cold-reduced sheet for having rinsed is dried, and pickle is added in pickling unit, and pickle is hydrochloric acid, pickle
In water in purified water storage case, the cold-reduced sheet after drying is put in pickle carries out pickling processes, and pickling is tied
Pickle after beam carries out purified treatment in being passed through pickling waste waterss processing equipment, and the water after purification is also passed in purified water storage case
Deposited；
S5：Cold-reduced sheet after acidifying is carried out the flash baking of 7 minutes at a temperature of 77 degrees Celsius by passivation, then will be cold rolling
Plate is passivated process in being put into paralysis facility, passivator, additive and pure are added with the passivation liquid container of the paralysis facility
Water purification, and the liquid of passivator, additive and pure water mixing is completely soaked cold-reduced sheet, wherein passivator, additive and pure
Water includes following composition by weight：
45 parts of passivator, 20 parts of additive, 30 parts of pure water.
Passivator includes following composition by weight：
12 parts of sodium nitrite, trivalent chromium are blunt 10 parts, 6 parts of sodium bicarbonate, 5 parts of sodium acetate；
Additive includes following composition by weight：
3 parts of zincate galvanizing, 3 parts of trivalent chromium plating zinc.
S6：Cold-reduced sheet after passivator and additive immersion is gripped the spray at away from horizontal plane 1-2 rice by spray
Room is drenched, the temperature of spray chamber is 20 degrees Celsius, and spray equipment is opened, and activating agent, activating agent bag are filled with spray equipment
Include following composition by weight：
13 parts of TX-100,8 parts of OPEO.
Cold-reduced sheet is carried out around spray using spray equipment.
S7：Rinsing, the cold-reduced sheet after passivation are put in rinse bath, and the purified water being passed through in purified water storage case and rinsing
Liquid mixing is rinsed to cold-reduced sheet, and the water after rinsing carries out the dirty water decontamination handles in being emitted into rinsing liquid defecator；
S8：Passivation test, after the cold-reduced sheet after rinsing is dried naturally at room temperature and placed no less than 24 hours, by cold-reduced sheet
It is put into salt mist experiment case to detect its decay resistance.
Embodiment two
The present invention provides a kind of technical scheme：A kind of cold-reduced sheet surface passivation technology, comprises the following steps：
S1：Immersion, the cold-reduced sheet for processing is put in soak and is soaked 120 minutes, and soak is carried out with heater
The temperature of soak is heated to 60 degrees Celsius from room temperature by heating；
S2：Cleaning, the cold-reduced sheet that finishes of immersion is gripped to higher than at horizontal plane 1-2 rice from soak, and uses giant
Surface washing 6 minutes to cold-reduced sheet；
S3：Sewage disposal, the water that soak and giant are ejected is put together in dirty water collecting tank, is put in header tank
Effluent treatment plant is equipped with, is deposited being passed in purified water storage case through the water of effluent treatment plant；
S4：Pickling, the cold-reduced sheet for having rinsed is dried, and pickle is added in pickling unit, and pickle is hydrochloric acid, pickle
In water in purified water storage case, the cold-reduced sheet after drying is put in pickle carries out pickling processes, and pickling is tied
Pickle after beam carries out purified treatment in being passed through pickling waste waterss processing equipment, and the water after purification is also passed in purified water storage case
Deposited；
S5：Cold-reduced sheet after acidifying is carried out the flash baking of 9 minutes at a temperature of 85 degrees Celsius by passivation, then will be cold rolling
Plate is passivated process in being put into paralysis facility, passivator, additive and pure are added with the passivation liquid container of the paralysis facility
Water purification, and the liquid of passivator, additive and pure water mixing is completely soaked cold-reduced sheet, wherein passivator, additive and pure
Water includes following composition by weight：
56 parts of passivator, 24 parts of additive, 40 parts of pure water.
Passivator includes following composition by weight：
18 parts of sodium nitrite, trivalent chromium are blunt 16 parts, 8 parts of sodium bicarbonate, 7 parts of sodium acetate；
Additive includes following composition by weight：
6 parts of zincate galvanizing, 5 parts of trivalent chromium plating zinc.
S6：Spray, the cold-reduced sheet after passivator and additive immersion is gripped the spray at away from 2 meters of horizontal plane
Room, the temperature of spray chamber is 50 degrees Celsius, and spray equipment is opened, and activating agent is filled with spray equipment, and activating agent includes
Following composition by weight：
24 parts of TX-100,11 parts of OPEO.
Cold-reduced sheet is carried out around spray using spray equipment.
S7：Rinsing, the cold-reduced sheet after passivation are put in rinse bath, and the purified water being passed through in purified water storage case and rinsing
Liquid mixing is rinsed to cold-reduced sheet, and the water after rinsing carries out the dirty water decontamination handles in being emitted into rinsing liquid defecator；
S8：Passivation test, after the cold-reduced sheet after rinsing is dried naturally at room temperature and placed no less than 24 hours, by cold-reduced sheet
It is put into salt mist experiment case to detect its decay resistance.
Embodiment three
The present invention provides a kind of technical scheme：A kind of cold-reduced sheet surface passivation technology, comprises the following steps：
S1：Immersion, the cold-reduced sheet for processing is put in soak and is soaked 60 minutes, and soak is carried out adding with heater
The temperature of soak is heated to 60 degrees Celsius from room temperature by temperature；
S2：Cleaning, the cold-reduced sheet that finishes of immersion is gripped to higher than at 1 meter of horizontal plane from soak, and with giant pair
The surface washing of cold-reduced sheet 5 minutes；
S3：Sewage disposal, the water that soak and giant are ejected is put together in dirty water collecting tank, is put in header tank
Effluent treatment plant is equipped with, is deposited being passed in purified water storage case through the water of effluent treatment plant；
S4：Pickling, the cold-reduced sheet for having rinsed is dried, and pickle is added in pickling unit, and pickle is hydrochloric acid, pickle
In water in purified water storage case, the cold-reduced sheet after drying is put in pickle carries out pickling processes, and pickling is tied
Pickle after beam carries out purified treatment in being passed through pickling waste waterss processing equipment, and the water after purification is also passed in purified water storage case
Deposited；
S5：Cold-reduced sheet after acidifying is carried out the flash baking of 7 minutes at a temperature of 80 degrees Celsius by passivation, then will be cold rolling
Plate is passivated process in being put into paralysis facility, passivator, additive and pure are added with the passivation liquid container of the paralysis facility
Water purification, and the liquid of passivator, additive and pure water mixing is completely soaked cold-reduced sheet, wherein passivator, additive and pure
Water includes following composition by weight：
48 parts of passivator, 20 parts of additive, 30 parts of pure water.
Passivator includes following composition by weight：
13 parts of sodium nitrite, trivalent chromium are blunt 12 parts, 7 parts of sodium bicarbonate, 6 parts of sodium acetate；
Additive includes following composition by weight：
5 parts of zincate galvanizing, 4 parts of trivalent chromium plating zinc.
S6：Spray, the cold-reduced sheet after passivator and additive immersion is gripped the spray at away from 2 meters of horizontal plane
Room, the temperature of spray chamber is 44 degrees Celsius, and spray equipment is opened, and activating agent is filled with spray equipment, and activating agent includes
Following composition by weight：
22 parts of TX-100,9 parts of OPEO.
Cold-reduced sheet is carried out around spray using spray equipment.
S7：Rinsing, the cold-reduced sheet after passivation are put in rinse bath, and the purified water being passed through in purified water storage case and rinsing
Liquid mixing is rinsed to cold-reduced sheet, and the water after rinsing carries out the dirty water decontamination handles in being emitted into rinsing liquid defecator；
S8：Passivation test, after the cold-reduced sheet after rinsing is dried naturally at room temperature and placed no less than 24 hours, by cold-reduced sheet
It is put into salt mist experiment case to detect its decay resistance.
Generally speaking, then first high temperature immersion during the present invention is the step of cleaning is rinsed with giant so that cold
Roll that the dirt on plate surface itself is cleaned very thoroughly, beneficial to the carrying out of passivation technology below；By with passivator and addition
Cold-reduced sheet is soaked in agent, and sprays cold rolling plate surface with activating agent so that the effect of the cold-reduced sheet passivation is relatively good, and side occurs in reduction
Split the probability of defect or surface defect；In the art, each sewage all can be carried out at purification by sewage purifier
Reason, the water that purification is reused in subsequent processing are processed, and reach the environmentally friendly production theory of cycling use of water.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (4)
1. a kind of cold-reduced sheet surface passivation technology, it is characterised in that：Comprise the following steps：
S1：The cold-reduced sheet for processing is put into immersion 30-120 minutes in soak, and soak is entered with heater by immersion
The temperature of soak is heated to 60 degrees Celsius from room temperature by row heating；
S2：Cleaning, the cold-reduced sheet that finishes of immersion is gripped to higher than at horizontal plane 1-2 rice from soak, and uses giant
Surface washing 3-6 minutes to cold-reduced sheet；
S3：Sewage disposal, the water that soak and giant are ejected is put together in dirty water collecting tank, is put in header tank
Effluent treatment plant is equipped with, is deposited being passed in purified water storage case through the water of effluent treatment plant；
S4：Pickling, the cold-reduced sheet for having rinsed is dried, and adds pickle in pickling unit, and the water in pickle carrys out self-cleaning
Change in water storage case, the cold-reduced sheet after drying is put in pickle carries out pickling processes, and the pickle after pickling is terminated
Purified treatment is carried out in being passed through pickling waste waterss processing equipment, the water after purification is also passed into being deposited in purified water storage case；
S5：Cold-reduced sheet after acidifying is carried out the flash baking of 5-9 minutes at a temperature of 70-85 degree Celsius by passivation, then will
Cold-reduced sheet is passivated process in being put into paralysis facility, be added with passivator, additive in the passivation liquid container of the paralysis facility
And pure water, and the liquid of passivator, additive and pure water mixing is completely soaked cold-reduced sheet, wherein passivator, additive and
Pure water includes following composition by weight：
Passivator 34-56 parts, additive 18-24 parts, pure water 20-40 parts；
S6：Cold-reduced sheet after passivator and additive immersion is gripped the spray at away from horizontal plane 1-2 rice by spray
Room, the temperature of spray chamber is 20-50 degree Celsius, and spray equipment is opened, and is filled with activating agent, using spray in spray equipment
Device is carried out to cold-reduced sheet around spray；
S7：Rinsing, the cold-reduced sheet after passivation are put in rinse bath, and the purified water being passed through in purified water storage case is mixed with rinsing liquid
Conjunction is rinsed to cold-reduced sheet, and the water after rinsing carries out the dirty water decontamination handles in being emitted into rinsing liquid defecator；
S8：Passivation test, after the cold-reduced sheet after rinsing is dried naturally at room temperature and placed no less than 24 hours, by cold-reduced sheet
It is put into salt mist experiment case to detect its decay resistance.
2. a kind of cold-reduced sheet surface passivation technology according to claim 1, it is characterised in that：Pickling in step S4
Liquid is hydrochloric acid.
3. a kind of cold-reduced sheet surface passivation technology according to claim 1, it is characterised in that：Passivation in step S5
Agent includes following composition by weight：
Sodium nitrite 10-18 parts, the blunt 9-16 parts of trivalent chromium, sodium bicarbonate 5-8 parts, sodium acetate 4-7 parts；
Additive includes following composition by weight：
Zincate galvanizing 2-6 parts, trivalent chromium plating zinc 3-5 parts.
4. a kind of cold-reduced sheet surface passivation technology according to claim 1, it is characterised in that：Activity in step S6
Agent includes following composition by weight：
TX-100 13-24 parts, OPEO 8-11 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096428.6A CN106544667A (en) | 2016-12-02 | 2016-12-02 | A kind of cold-reduced sheet surface passivation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096428.6A CN106544667A (en) | 2016-12-02 | 2016-12-02 | A kind of cold-reduced sheet surface passivation technology |
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| CN106544667A true CN106544667A (en) | 2017-03-29 |
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| CN201611096428.6A Pending CN106544667A (en) | 2016-12-02 | 2016-12-02 | A kind of cold-reduced sheet surface passivation technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018103078A1 (en) * | 2016-12-09 | 2018-06-14 | 机械科学研究总院青岛分院有限公司 | Cold-rolled plate surface passivation process |
| CN113751443A (en) * | 2020-06-02 | 2021-12-07 | 武义鹏盛工贸有限公司 | Cup cleaning process |
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| CN113751443A (en) * | 2020-06-02 | 2021-12-07 | 武义鹏盛工贸有限公司 | Cup cleaning process |
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