CN106835220A - Automotive upholstery electroplating surface handling process - Google Patents
Automotive upholstery electroplating surface handling process Download PDFInfo
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- CN106835220A CN106835220A CN201710089726.0A CN201710089726A CN106835220A CN 106835220 A CN106835220 A CN 106835220A CN 201710089726 A CN201710089726 A CN 201710089726A CN 106835220 A CN106835220 A CN 106835220A
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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
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
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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
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- 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
- C25D5/54—Electroplating of non-metallic surfaces
- C25D5/56—Electroplating of non-metallic surfaces of plastics
Abstract
The invention discloses automotive upholstery electroplating surface handling process, comprise the following steps：1）Ultrasonic oil removal；2）Roughening；3）Palladium is activated；4）Dispergation；5）Chemical nickel；6）Nickel preplating；7）Sour copper；8）Semi-gloss nickel；9）Pearl nickel；10）Nickel is sealed；11）Decorative chromium；12）Extension is moved back in electrolysis；The technique becomes more meticulous, procedure is in detail, rationally, operation is in order, simply, improved so as to improve the effect of automotive upholstery surface treatment, yield rate, aesthetic property is good, and the cycle for using is long, cost-effective and resource, and after to the boric acid in electroplating process carrying out rationalization treatment so that the efficiency and effect of nickel plating are significantly improved.
Description
Technical field
The present invention relates to a kind of automotive upholstery electroplating surface handling process.
Background technology
Automotive upholstery occupies significant proportion in auto manufacturing, the handle of such as automobile, trim panel, interior gusset plate,
Front wall decorative panel etc. belongs to automotive interior trim part, and these decorations are first injection mouldings, then again by surface treatment
Technology is processed, and reaches quality higher, preferable outward appearance and stronger performance, so as to allow automotive interior function how far
Change, and surface treated decoration because its main body be plastic material, and its electroplating surface metal, such decoration energy
It is enough to ensure lighter quality and preferable aesthetic property.
Therefore, automotive upholstery also needs to carry out its surface the treatment work of series after moulding, and existing
Automotive upholstery often shortens the operation during being surface-treated in order to save technique, causes automotive upholstery table
The effect of face treatment is poor, and service life shortens, and aesthetic property is poor, and the requisite quality rate of its production is relatively low, causes percent defective
Increase, so that cost of idleness and resource.
Additionally, when automotive upholstery carries out pearl nickel operation, it is general using the used method of solution is now matched somebody with somebody, so can
Ensure using immediately after nickel plating solution allotment, it is ensured that the nickel-plated quality of pearl nickel, but found during reality processing, this
The shortcoming of sample operation is the pearl nickel amount of solution that uses than larger, and the nickel plating solution of pearl nickel is needed in 4-6 after existing matching somebody with somebody
Using falling within hour, this is undoubtedly and increases production difficulty, and easily causes the waste of nickel plating solution, so as to be added to
This, and the now with the current treating capacity for considerably increasing nickel-plating waste water.
The content of the invention
For above-mentioned problem, the present invention is intended to provide automotive upholstery electroplating surface handling process, technique essence
Refinement, procedure in detail, rationally, operation in order, it is simple such that it is able to improve automotive upholstery surface treatment effect, into
Product rate is improved, and aesthetic property is good, and the cycle for using is long, cost-effective and resource, and the boric acid in electroplating process is carried out rationally
After change treatment so that the efficiency and effect of nickel plating are significantly improved；Additionally, being changed by interior pearl nickel step
Enter, not only reduce cost, and maintain the color shade of pearl nickel, operation difficulty reduction.
To achieve these goals, the technical solution adopted in the present invention is as follows：
Automotive upholstery electroplating surface handling process, comprises the following steps：
1）Electrochemical deoiling：Cleaning oil removing cell body, to the running water that cell body 1/2nd is injected in groove, air stirring, stirred
Add degreasing powder in journey, degreasing powder is first dissolved before adding with warm water, continues to add water to submerge automotive upholstery, is heated, temperature by
Edge up height, is heated using the programming rate of 1.5-2 DEG C/min, is heated up to 30-35 DEG C and stops heating；
2）Roughening
A, cleaning roughening cell body, first to the pure water of injection 40% in cell body, under air stirring, are gradually added into chromic acid 400g/L, directly
To being completely dissolved, sulfuric acid 400g/L is then added using a small amount of multiple Adding Way, stop adding when higher than 70 DEG C, treat temperature
Degree is added again when being down to less than 60 DEG C；
After the completion of b, sulfuric acid are added, the wetting agent of amount of calculation is first diluted with pure water, bottom sets heating in pure water dilution
Module, uses 15-20 DEG C of thermodilution in dilution, and point 3-5 equivalent is added in coarsening solution after having diluted, through super
The automotive upholstery of sound oil removing is placed on roughening in coarsening solution；
3）Palladium is activated
A, cleaning palladium activation cell body, to the pure water that 60% volume is injected in groove, open exhausting system, add the hydrochloric acid of amount of calculation molten
Liquid；
B, opening filter, add the dense palladium water of amount of calculation under agitation, add water to required liquid level, adjust attemperating unit, make groove
Liquid temperature degree is maintained at 20-25 DEG C, and palladium activation process is carried out to automotive upholstery surface；
4）Dispergation
A, cleaning dispergation cell body, plus pure water are gradually added into sulfuric acid to the 60% of working solution volume in the state of stirring；
After the completion of b, sulfuric acid are added, accelerator is added, supplement liquid level, open filter, stirred, open heater, temperature
Degree is heated to 100-120 DEG C of dispergation；
5）Chemical nickel：The pure water of the volume of cylinder amount 2/3 is opened in cleaning chemical nickel cell body, addition；The chemical nickel LFS 3 of amount of calculation is added,
The ADM chemical nickels LFS 1 and ADM chemical nickels LFS 2 of amount of calculation are subsequently adding, pure water is supplemented, filter is opened, are adjusted with ammoniacal liquor
PH value, opens heater；
6）Nickel preplating
A, 60% pure water for opening cylinder amount volume is added in clean standby cylinder, be heated to 50 DEG C, unlatching air stirring, the meter of addition
Calculation amount nickel sulfate, nickel chloride, boric acid；
To opening cylinder amount, in 50-55 DEG C, stirring is to being completely dissolved, plus 3-5g/L activated carbon, and 1-2 is small for stirring for keeping temperature for b, moisturizing
When, stand 4-5 hours；
C, returned in coating bath with the cotton core filter three-stage filtration of 10-12u, open filter circulation, steam heating, stirring, use ripple
The continuous light current solution of false negative electrode of wave-like 10 hours, pH value is adjusted with the pure dilute sulfuric acid of analysis or dilute sodium hydroxide；
7）Sour copper
A, 50% pure water for opening cylinder amount volume is added in clean standby cylinder, unlatching air stirring is subsequently adding the sulfuric acid of amount of calculation
Copper, is allowed to be completely dissolved；
B, the desired amount of sulfuric acid is slowly added under strong stirring, temperature stops addition more than 65 DEG C, treats that temperature drops to 60-65 DEG C
Shi Zaici is added, and so move in circles addition, plus pure water is to opening cylinder amount；
C, addition 3-5g/L activated carbon powders, stir 1-2 hours, 4-5 hours are stood, with the cotton core filter three-stage filtration of 8-10u
Return in coating bath, open filter circulation, cold water cooling system, stirring；
D, addition hydrochloric acid, add debugging photo etching, and electricity is tried after agitation and filtration circulation 30min；
8）Semi-gloss nickel
A, 60% pure water for opening cylinder amount volume is added in clean standby cylinder, be heated to 50 DEG C, unlatching air stirring, the meter of addition
Calculation amount nickel sulfate, nickel chloride, boric acid, to cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
B, stirring are to being completely dissolved, plus 3-5g/L activated carbon, stir 1-2 hour, stand 4-5 hours, with the cotton core filtering of 6-8u
Machine three-stage filtration is returned in coating bath, opens filter circulation, steam heating, stirring；
C, with the wavy false continuous light current solution of negative electrode 10 hours, with pure dilute sulfuric acid is analyzed or dilute sodium hydroxide adjusts pH value, pass through
The photo etching of Kazakhstan groove and bending copper sheet adjustment semi-gloss nickel；
9）Pearl nickel
A, 60% pure water for opening cylinder amount volume is added in clean standby cylinder, be heated to 50 DEG C, unlatching air stirring, the meter of addition
Calculation amount nickel sulfate, nickel chloride, boric acid, to cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
B, stirring are to being completely dissolved, plus 3-5g/L activated carbon, stir 1-2 hour, stand 4-5 hours, with the cotton core filtering of 5-6u
Machine three-stage filtration is returned in coating bath, opens filter circulation, steam heating, stirring；
C, with the wavy false continuous light current solution of negative electrode 10 hours, with pure dilute sulfuric acid is analyzed or dilute sodium hydroxide adjusts pH value, pass through
The photo etching of Kazakhstan groove and bending copper sheet adjustment semi-gloss nickel；
D, pearl nickel process use the long-acting system circulation nickel plating liquid of pearl nickel；
10）Nickel envelope,
A, 60% pure water for opening cylinder amount volume is added in clean standby cylinder, be heated to 50 DEG C, unlatching air stirring, the meter of addition
Calculation amount nickel sulfate, nickel chloride, boric acid, to cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
B, stirring are to being completely dissolved, plus 3-5g/L activated carbon, stir 1-2 hour, stand 4-5 hours, with the cotton core filtering of 5-6u
Machine three-stage filtration is returned in coating bath, opens filter circulation, steam heating, stirring；
C, with the wavy false continuous light current solution of negative electrode 10 hours, with pure dilute sulfuric acid is analyzed or dilute sodium hydroxide adjusts pH value, will count
DN618 nickel envelope discrete particles have been measured to be uniformly mixed with special blender；
11）Decorative chromium：Decorative chromium cell body is cleaned up, the pure water of the volume of cylinder amount 2/3 is opened in addition, and chromium is added under air stirring
Acid anhydride and the agent that walks, stirring add sulfuric acid to being completely dissolved, and stop air stirring, with primary anode, big negative electrode 6V potential electrolysis 8-12
Hour, fill neat stereotype, plus antifoggant；
12）Extension is moved back in electrolysis.
Preferably, the boric acid is required to be crushed and dilution treatment before addition.
Preferably, the crushing of the boric acid and dilution treatment are first to smash boric acid to pieces, 80,100,120 mesh are passed sequentially through
Mesh screen screens out relatively fine particle, and the larger particles that will be sieved continue to crush, and circulation is added；After crushing, pasty state is tuned into hot water, heat
20-25 DEG C of water temperature in use.
Preferably, the crushing of the boric acid and hot water dissolving are carried out in crushing with hot water dissolving's all-in-one, the powder
It is broken to include the dissolving part for crushing part and lower end of upper end, the crushing part and the dissolving portion with hot water dissolving's all-in-one
Point insertion connection, and switched by adjustable gate therebetween.
Preferably, the smashing portion point includes ball mill grinding device and screening plant, the ball mill grinding device sets
Put in the top of the screening plant, three-level screening is carried out in falling directly into screening plant through the boric acid of ball mill grinding.
Preferably, the dissolving part includes dissolving case, the dissolving case side is provided with hot water inlet, and opposite side is provided with
BAS is exported.
Preferably, the long-acting system of pearl nickel includes setting pressing plate mistake in filter vat and long-acting bucket, the filter vat
Filtering layer, charge pipe is set in the long-acting barrel side side, and for adding husky agent to long-acting bucket interior circulation, filter vat is operated with pearl nickel
During pearl nickel cell body by pipeline communication, company is circulated by pipeline between long-acting bucket and pearl nickel cell body and filter vat
Connect.
The beneficial effects of the invention are as follows：Compared with prior art, of the invention to the improvement is that, the technique becomes more meticulous,
In detail, rationally, operation is in order, simply such that it is able to improves the effect of automotive upholstery surface treatment, yield rate and carries for procedure
Height, aesthetic property is good, and the cycle for using is long, cost-effective and resource, and carries out rationalization treatment to the boric acid in electroplating process
Afterwards so that the efficiency and effect of nickel plating are significantly improved；
Secondly, it is existing because the solution of nickel plating is the liquid with temperature in actual mechanical process, therefore in order to easy to operate
In technology by the way of boric acid is directly added into, but boric acid is compared with indissoluble solution, even if there is the liquid to have temperature, but to be completely dissolved
Longer time is needed, the lysate proportional quantity of nickel plating solution is thus had a strong impact on, nickel plating effect is impacted, therefore this hair
Bright to set dedicated for carrying out the device of boric acid treatment before nickel plating, integration, simple structure, operation is easy, and it is good to grind effect, sieve
Point effect is good, efficiency high, is directly entered dissolving case and is dissolved, and liquid state is prepared into before entering in nickel bath, improves nickel plating
Effect；
Additionally, the present invention designs long-acting system for pearl nickel, the setting of the long-acting system enables to pearl nickel nickel plating solution
It is recycled for a long time, and the nickel plating solution only needed to periodically to circulating carries out allotment by a small margin, greatly reduces and is produced into
This, and the color shade of nickel plating is able to maintain that, and the analyte of a part can be in time processed, reduce the place of nickel-plating waste water
Reason amount, environmental protection.
Specific embodiment
In order that one of ordinary skill in the art is better understood on technical scheme, with reference to embodiment
Technical scheme is further described.
Embodiment：Automotive upholstery electroplating surface handling process, comprises the following steps：
1st, electrochemical deoiling
（1）Cell body and auxiliary device are cleaned up；
（2）To injecting about 1/2nd running water in groove；
（3）The desired amount of degreasing powder U-151 is added in air stirring；
（4）Required liquid level, air stirring are added water to until being closed after uniform；
（5）It is heated up to technological standards temperature stand-by；
2nd, it is roughened
（1）Just cell body and the dry Net of auxiliary device cleaning, to injecting about 40% pure water in groove；
（2）Under strong air stirring, the desired amount of chromic acid is slowly added into, until being completely dissolved；
（3）It is a small amount of repeatedly to add the sulfuric acid, solution temperature to raise, stop adding when higher than 70 DEG C, treat temperature be down to 60 DEG C with
Added again when lower；
（4）After the wetting agent Cr21 of amount of calculation is diluted with pure water, add several times to coarsening solution；
（5）Required liquid level is added water to, technological standards temperature is heated up to stand-by；
3rd, palladium activation
（1）Just cell body and the dry Net of auxiliary device cleaning, plus pure water is to the 60% of required volume；
（2）Exhausting system is opened, the CP hydrochloric acid of amount of calculation is added；
（3）Filter is opened, the dense palladium water of amount of calculation is added under agitation；
（4）Required liquid level is added water to, attemperating unit is adjusted, tank liquor temperature is reached technological requirement and be can be used.
4th, dispergation
（1）Just cell body and the dry Net of auxiliary device cleaning, plus pure water is to the 60% of working solution volume；
（2）The desired amount of CP sulfuric acid is slowly added under agitation；
（3）Add the desired amount of Hui Zhong ADM accelerators 1；
（4）Supplement liquid level opens filter to appropriate, stirs；
（5）Heater is opened, temperature is that can be used up to processing range；
5th, chemical nickel
（1）Just cell body and the dry Net of auxiliary device cleaning, add the pure water for opening the volume of cylinder amount 2/3；
（2）Add the Hui Zhong ADM chemical nickels LFS 3 of amount of calculation；
（3）It is subsequently adding the Hui Zhong ADM chemical nickels LFS 1 and Hui Zhong ADM chemical nickels LFS 2 of amount of calculation；
（4）Supplement pure water opens filter to cylinder amount is opened, and pH value to technological requirement scope is adjusted with ammoniacal liquor；
（5）Heater is opened, technological requirement scope is heated to and be can be used；
6th, nickel preplating
（1）60% pure water for opening cylinder amount volume is added in clean standby cylinder, 50 DEG C are heated to, facilitates dissolution of raw material；
（2）Air stirring is opened, the amount of calculation nickel sulfate of addition, nickel chloride, boric acid because boric acid is compared with indissoluble solution, therefore must first be smash
It is broken, and can just add after being tuned into pasty state with hot water；
（3）To cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
（4）Stirring is to being completely dissolved, plus 3-5g/L activated carbon, stirs 1-2 hour, standing 4-5 hours；
（5）Returned in coating bath with the cotton core filter three-stage filtration of 5-10u, before filtering, it is ensured that anode, air-inflating tube, filter, turnover
Water pipe will be installed；
（6）Open filter circulation, steam heating, stirring etc.；
（7）With wavy false negative electrode low current density（0.1-0.4A/dm2）Continuous light current solution 10 hours；
（8）It is that can be used with pure dilute sulfuric acid or dilute sodium hydroxide tune pH value to technological requirement scope is analyzed；
7th, sour copper
（1）50% pure water for opening cylinder amount volume is added in clean standby cylinder；
（2）Unlatching is inflated, and is subsequently adding the copper sulphate of amount of calculation, is allowed to be completely dissolved；
（3）The desired amount of sulfuric acid is slowly added under strong stirring, while using thermometer measure temperature, such as stopping more than 65 DEG C adds
Plus, added after after temperature drop, plus pure water is to opening cylinder amount；
（4）3-5g/L activated carbon powders are added, is stirred 1-2 hours, stand 4-5 hours；
（5）Returned in coating bath with the cotton core filter three-stage filtration of 5-10u, before filtering, it is ensured that anode, air-inflating tube, filter, turnover
Water pipe will be installed；
（6）Filter circulation, cold water cooling system, stirring etc. are opened, temperature is adjusted to processing range；
（7）The chlorion of amount of calculation is first added in the form of hydrochloric acid, then with Kazakhstan groove and bending copper sheet debugging photo etching, agitation and filtration
Electricity is tried after circulation half an hour；
8th, semi-gloss nickel
（1）60% pure water for opening cylinder amount volume is added in clean standby cylinder, 50 DEG C are heated to, facilitates dissolution of raw material；
（2）Air stirring is opened, the amount of calculation nickel sulfate of addition, nickel chloride, boric acid because boric acid is compared with indissoluble solution, therefore must first be smash
It is broken, and can just add after being tuned into pasty state with hot water；
（3）To cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
（4）Stirring is to being completely dissolved, plus 3-5g/L activated carbon, stirs 1-2 hour, standing 4-5 hours；
（5）Returned in coating bath with the cotton core filter three-stage filtration of 5-10u, before filtering, it is ensured that anode, air-inflating tube, filter, turnover
Water pipe will be installed；
（6）Open filter circulation, steam heating, stirring etc.；
（7）With wavy false negative electrode low current density（0.1-0.4A/dm2）Continuous light current solution 10 hours；
（8）PH value to technological requirement scope is adjusted with the pure dilute sulfuric acid of analysis or dilute sodium hydroxide；
（9）By the way that after the photo etching of Kazakhstan groove and bending copper sheet adjustment semi-gloss nickel, electricity can be tried.
9th, pearl nickel
（1）60% pure water for opening cylinder amount volume is added in clean standby cylinder, 50 DEG C are heated to, facilitates dissolution of raw material；
（2）Air stirring is opened, the amount of calculation nickel sulfate of addition, nickel chloride, boric acid because boric acid is compared with indissoluble solution, therefore must first be smash
It is broken, and can just add after being tuned into pasty state with hot water；
（3）To cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
（4）Stirring is to being completely dissolved, plus 3-5g/L activated carbon, stirs 1-2 hour, standing 4-5 hours；
（5）Returned in coating bath with the cotton core filter three-stage filtration of 5-10u, before filtering, it is ensured that anode, air-inflating tube, filter, turnover
Water pipe will be installed；
（6）Open filter circulation, steam heating, stirring etc.；
（7）With wavy false negative electrode low current density（0.1-0.4A/dm2）Continuous light current solution 10 hours；
（8）PH value to technological requirement scope is adjusted with the pure dilute sulfuric acid of analysis or dilute sodium hydroxide；
（9）By the way that after the photo etching of Kazakhstan groove and bending copper sheet adjustment semi-gloss nickel, electricity can be tried；
（11）Pearl nickel process uses the long-acting system circulation nickel plating liquid of pearl nickel；
The long-acting system of pearl nickel includes setting pressing plate filter layer in filter vat and long-acting bucket, the filter vat, in the length
Effect barrel side side sets charge pipe, for adding husky agent, the pearl in filter vat and pearl nickel operating process to long-acting bucket interior circulation
Nickel cell body is circulated by pipeline by pipeline communication, between long-acting bucket and pearl nickel cell body and filter vat and connected；Concrete principle is：
Nickel plating water in pearl nickel cell body is recycled in filter vat by pipeline, is fallen some by the pressing plate filtration treatment of filter vat and is decomposed
Thing, the nickel plating water through processing flows into long-acting bucket further through pipeline, is added by the feeder of long-acting barrel side side and adjusts treasure by a small margin
The nickel plating water of pearl nickel, reaches standard use quality, in long-acting system, need to also add husky agent by charge door, husky agent
Addition can ensure the color of pearl nickel, maintain the quality of colour of pearl nickel plating, and husky agent is added once daily, by being arranged on length
Imitate the automatic addition pump equivalent addition of barrel side side；Pearl nickel water generally comprises nickel sulfate 400g/L, nickel chloride 40g/L, adds
Plus agent one and additive two, additive one is the nickel plating brighteners such as saccharin, dibenzenesulfonimide composition, and additive two is by butanedioic acid
Ester salt analog anion surfactants, metal carboxylate anion surfactant and quaternary cationic surfactant etc.
Mixing composition, in actual Ni-Speed, the content of additive one is 8-10ml/L, and the content of additive two is 16-20ml/L；
10th, nickel envelope
（1）60% pure water for opening cylinder amount volume is added in clean standby cylinder, 50 DEG C are heated to, facilitates dissolution of raw material；
（2）Air stirring is opened, the amount of calculation nickel sulfate of addition, nickel chloride, boric acid because boric acid is compared with indissoluble solution, therefore must first be smash
It is broken, and can just add after being tuned into pasty state with hot water；
（3）To cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
（4）Stirring is to being completely dissolved, plus 3-5g/L activated carbon, stirs 1-2 hour, standing 4-5 hours；
（5）Returned in coating bath with the cotton core filter three-stage filtration of 5-10u, before filtering, it is ensured that anode, air-inflating tube, filter, turnover
Water pipe will be installed；
（6）Open filter circulation, steam heating, stirring etc.；
（7）With wavy false negative electrode low current density（0.1-0.4A/dm2）Continuous light current solution 10 hours；
（8）PH value to technological requirement scope is adjusted with the pure dilute sulfuric acid of analysis or dilute sodium hydroxide；
（9）DN618 nickel envelope discrete particles will be measured to be uniformly mixed with special blender, the cotton of filter will be taken out before addition
Core, filter only plays ringing, prevents solid particles sediment, it is necessary to be always maintained at air stirring and plating solution circulation；
（10）By the way that after the photo etching of Kazakhstan groove and bending copper sheet adjustment semi-gloss nickel, electricity can be tried；
11st, decorative chromium
（1）Just cell body and the dry Net of auxiliary device cleaning, add the pure water for opening the volume of cylinder amount 2/3；
（2）The desired amount of chromic anhydride is added under air stirring and is walked agent, stirring is to being completely dissolved；
（3）Plus pure water is to appropriate water level, original sulfuric acid content in plating solution, then accurate addition CP sulfuric acid are first analyzed；
（4）Stop air stirring, with primary anode, big negative electrode（The available stereotype of anode and negative electrode, negative electrode can also use stainless steel plate）
6V potential electrolysis 8-12 hours；
（5）Neat stereotype, plus antifoggant are filled, temperature is adjusted to processing range, can try electricity；
12nd, extension is moved back in electrolysis
（1）Add the running water of 1/2 volume；
（2）Add the electrolysis de- extension agent of amount of calculation；
（3）Required volume is added water to, pH value to processing range is adjusted with ammoniacal liquor or acetic acid；
（4）Filter is opened, be can be used after being heated to required temperature；
In the present invention, the boric acid is required to be crushed before addition and dilution treatment, the crushing of the boric acid and dilute
It is first to smash boric acid to pieces to release treatment, passes sequentially through 80,100,120 mesh mesh screens and screens out relatively fine particle, the larger particles that will be sieved
Continue to crush, circulation is added；After crushing, pasty state, 20-25 DEG C of hot water temperature in use are tuned into hot water.
In the present invention, the crushing of the boric acid and hot water dissolving are carried out in crushing with hot water dissolving's all-in-one, should
Crush includes the dissolving part for crushing part and lower end of upper end, the crushing part and the dissolving with hot water dissolving's all-in-one
Part insertion connection, and switched by adjustable gate therebetween, the smashing portion point includes ball mill grinding dress
Put and screening plant, the ball mill grinding device is arranged on the top of the screening plant, the boric acid through ball mill grinding is direct
Falling into carries out three-level screening in screening plant, the dissolving part includes dissolving case, and the dissolving case side is provided with hot water inlet,
Opposite side is provided with BAS outlet；Because the solution of nickel plating is the liquid with temperature in actual mechanical process, therefore it is
Easy to operate, in the prior art by the way of boric acid is directly added into, but boric acid is compared with indissoluble solution, even if there is the liquid to have temperature
Degree, but to be completely dissolved needs longer time, thus has a strong impact on the lysate proportional quantity of nickel plating solution, and nickel plating is imitated
Fruit is impacted, therefore the present invention is set dedicated for carrying out the device of boric acid treatment, integration, simple structure, operation before nickel plating
Easily, grind effect good, screening effect is good, efficiency high, be directly entered dissolving case and dissolved, enter preceding preparation in nickel bath
Into liquid state, the effect of nickel plating is improved.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (7)
1. automotive upholstery electroplating surface handling process, it is characterised in that comprise the following steps：
1）Electrochemical deoiling：Cleaning oil removing cell body, to the running water that cell body 1/2nd is injected in groove, air stirring, stirred
Add degreasing powder in journey, degreasing powder is first dissolved before adding with warm water, continues to add water to submerge automotive upholstery, is heated, temperature by
Edge up height, is heated using the programming rate of 1.5-2 DEG C/min, is heated up to 30-35 DEG C and stops heating；
2）Roughening
A, cleaning roughening cell body, first to the pure water of injection 40% in cell body, under air stirring, are gradually added into chromic acid 400g/L, directly
To being completely dissolved, sulfuric acid 400g/L is then added using a small amount of multiple Adding Way, stop adding when higher than 70 DEG C, treat temperature
Degree is added again when being down to less than 60 DEG C；
After the completion of b, sulfuric acid are added, the wetting agent of amount of calculation is first diluted with pure water, bottom sets heating in pure water dilution
Module, uses 15-20 DEG C of thermodilution in dilution, and point 3-5 equivalent is added in coarsening solution after having diluted, through super
The automotive upholstery of sound oil removing is placed on roughening in coarsening solution；
3）Palladium is activated
A, cleaning palladium activation cell body, to the pure water that 60% volume is injected in groove, open exhausting system, add the hydrochloric acid of amount of calculation molten
Liquid；
B, opening filter, add the dense palladium water of amount of calculation under agitation, add water to required liquid level, adjust attemperating unit, make groove
Liquid temperature degree is maintained at 20-25 DEG C, and palladium activation process is carried out to automotive upholstery surface；
4）Dispergation
A, cleaning dispergation cell body, plus pure water are gradually added into sulfuric acid to the 60% of working solution volume in the state of stirring；
After the completion of b, sulfuric acid are added, accelerator is added, supplement liquid level, open filter, stirred, open heater, temperature
Degree is heated to 100-120 DEG C of dispergation；
5）Chemical nickel：The pure water of the volume of cylinder amount 2/3 is opened in cleaning chemical nickel cell body, addition；The chemical nickel LFS 3 of amount of calculation is added,
The ADM chemical nickels LFS 1 and ADM chemical nickels LFS 2 of amount of calculation are subsequently adding, pure water is supplemented, filter is opened, are adjusted with ammoniacal liquor
PH value, opens heater；
6）Nickel preplating
A, 60% pure water for opening cylinder amount volume is added in clean standby cylinder, be heated to 50 DEG C, unlatching air stirring, the meter of addition
Calculation amount nickel sulfate, nickel chloride, boric acid；
To opening cylinder amount, in 50-55 DEG C, stirring is to being completely dissolved, plus 3-5g/L activated carbon, and 1-2 is small for stirring for keeping temperature for b, moisturizing
When, stand 4-5 hours；
C, returned in coating bath with the cotton core filter three-stage filtration of 10-12u, open filter circulation, steam heating, stirring, use ripple
The continuous light current solution of false negative electrode of wave-like 10 hours, pH value is adjusted with the pure dilute sulfuric acid of analysis or dilute sodium hydroxide；
7）Sour copper
A, 50% pure water for opening cylinder amount volume is added in clean standby cylinder, unlatching air stirring is subsequently adding the sulfuric acid of amount of calculation
Copper, is allowed to be completely dissolved；
B, the desired amount of sulfuric acid is slowly added under strong stirring, temperature stops addition more than 65 DEG C, treats that temperature drops to 60-65 DEG C
Shi Zaici is added, and so move in circles addition, plus pure water is to opening cylinder amount；
C, addition 3-5g/L activated carbon powders, stir 1-2 hours, 4-5 hours are stood, with the cotton core filter three-stage filtration of 8-10u
Return in coating bath, open filter circulation, cold water cooling system, stirring；
D, addition hydrochloric acid, add debugging photo etching, and electricity is tried after agitation and filtration circulation 30min；
8）Semi-gloss nickel
A, 60% pure water for opening cylinder amount volume is added in clean standby cylinder, be heated to 50 DEG C, unlatching air stirring, the meter of addition
Calculation amount nickel sulfate, nickel chloride, boric acid, to cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
B, stirring are to being completely dissolved, plus 3-5g/L activated carbon, stir 1-2 hour, stand 4-5 hours, with the cotton core filtering of 6-8u
Machine three-stage filtration is returned in coating bath, opens filter circulation, steam heating, stirring；
C, with the wavy false continuous light current solution of negative electrode 10 hours, with pure dilute sulfuric acid is analyzed or dilute sodium hydroxide adjusts pH value, pass through
The photo etching of Kazakhstan groove and bending copper sheet adjustment semi-gloss nickel；
9）Pearl nickel
A, 60% pure water for opening cylinder amount volume is added in clean standby cylinder, be heated to 50 DEG C, unlatching air stirring, the meter of addition
Calculation amount nickel sulfate, nickel chloride, boric acid, to cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
B, stirring are to being completely dissolved, plus 3-5g/L activated carbon, stir 1-2 hour, stand 4-5 hours, with the cotton core filtering of 5-6u
Machine three-stage filtration is returned in coating bath, opens filter circulation, steam heating, stirring；
C, with the wavy false continuous light current solution of negative electrode 10 hours, with pure dilute sulfuric acid is analyzed or dilute sodium hydroxide adjusts pH value, pass through
The photo etching of Kazakhstan groove and bending copper sheet adjustment semi-gloss nickel；
D, pearl nickel process use the long-acting system circulation nickel plating liquid of pearl nickel；
10）Nickel envelope,
A, 60% pure water for opening cylinder amount volume is added in clean standby cylinder, be heated to 50 DEG C, unlatching air stirring, the meter of addition
Calculation amount nickel sulfate, nickel chloride, boric acid, to cylinder amount is opened, keeping temperature is in 50-55 DEG C for moisturizing；
B, stirring are to being completely dissolved, plus 3-5g/L activated carbon, stir 1-2 hour, stand 4-5 hours, with the cotton core filtering of 5-6u
Machine three-stage filtration is returned in coating bath, opens filter circulation, steam heating, stirring；
C, with the wavy false continuous light current solution of negative electrode 10 hours, with pure dilute sulfuric acid is analyzed or dilute sodium hydroxide adjusts pH value, will count
DN618 nickel envelope discrete particles have been measured to be uniformly mixed with special blender；
11）Decorative chromium：Decorative chromium cell body is cleaned up, the pure water of the volume of cylinder amount 2/3 is opened in addition, and chromium is added under air stirring
Acid anhydride and the agent that walks, stirring add sulfuric acid to being completely dissolved, and stop air stirring, with primary anode, big negative electrode 6V potential electrolysis 8-12
Hour, fill neat stereotype, plus antifoggant；
12）Extension is moved back in electrolysis.
2. automotive upholstery electroplating surface handling process according to claim 1, it is characterised in that：The boric acid is being added
It is required to be crushed and dilution treatment before.
3. automotive upholstery electroplating surface handling process according to claim 2, it is characterised in that：The crushing of the boric acid
It is larger by what is sieved and dilution treatment is first to smash boric acid to pieces, passes sequentially through 80,100,120 mesh mesh screens and screens out relatively fine particle
Particle continues to crush, and circulation is added；After crushing, pasty state, 20-25 DEG C of hot water temperature in use are tuned into hot water.
4. automotive upholstery electroplating surface handling process according to claim 3, it is characterised in that：The crushing of the boric acid
With hot water dissolving carried out in crushing with hot water dissolving's all-in-one, the crushing includes the crushing of upper end with hot water dissolving's all-in-one
Part and the dissolving part of lower end, the crushing part are connected with dissolving part insertion, and therebetween by adjustable
The gate of section is switched.
5. automotive upholstery electroplating surface handling process according to claim 4, it is characterised in that：The smashing portion subpackage
Ball mill grinding device and screening plant are included, the ball mill grinding device is arranged on the top of the screening plant, through ball milling powder
Broken boric acid carries out three-level screening in falling directly into screening plant.
6. automotive upholstery electroplating surface handling process according to claim 5, it is characterised in that：Wrap the dissolving part
Dissolving case is included, the dissolving case side is provided with hot water inlet, and opposite side is provided with BAS outlet.
7. automotive upholstery electroplating surface handling process according to claim 1, it is characterised in that：The pearl nickel is long-acting
System includes setting pressing plate filter layer in filter vat and long-acting bucket, the filter vat, and charge pipe is set in the long-acting barrel side side,
For adding husky agent to long-acting bucket interior circulation, filter vat passes through pipeline communication with the pearl nickel cell body in pearl nickel operating process,
Circulated by pipeline between long-acting bucket and pearl nickel cell body and filter vat and connected.
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| CN107475714A (en) * | 2017-09-11 | 2017-12-15 | 江阴市羽项汽车饰件有限公司 | A kind of white chromium pearl nickel electroplating technique of trivalent |
| CN107557850A (en) * | 2017-09-07 | 2018-01-09 | 延康汽车零部件如皋有限公司 | A kind of plating pearl nickel auto feed control method based on LPP systems |
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| CN107794552A (en) * | 2017-09-13 | 2018-03-13 | 杭州莱源环保科技有限公司 | A kind of method for ensureing that plating pearl nickel product colour is consistent |
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| CN109898073A (en) * | 2019-04-10 | 2019-06-18 | 珠海市永刚塑料制品有限公司 | A kind of plastic cement electroplating technology of automobile decoration piece product processing |
| CN109946169A (en) * | 2019-04-10 | 2019-06-28 | 珠海市永刚塑料制品有限公司 | A kind of tensile test technique of automobile decoration piece product |
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| CN107245738A (en) * | 2017-08-08 | 2017-10-13 | 珠海市春生五金工业有限公司 | Automobile trunk ornamental strip electro-plating method |
| CN107557850A (en) * | 2017-09-07 | 2018-01-09 | 延康汽车零部件如皋有限公司 | A kind of plating pearl nickel auto feed control method based on LPP systems |
| CN107475714A (en) * | 2017-09-11 | 2017-12-15 | 江阴市羽项汽车饰件有限公司 | A kind of white chromium pearl nickel electroplating technique of trivalent |
| CN107475714B (en) * | 2017-09-11 | 2019-05-07 | 江阴市羽项汽车饰件有限公司 | A kind of white chromium pearl nickel electroplating technique of trivalent |
| CN107794552A (en) * | 2017-09-13 | 2018-03-13 | 杭州莱源环保科技有限公司 | A kind of method for ensureing that plating pearl nickel product colour is consistent |
| CN107723765A (en) * | 2017-09-29 | 2018-02-23 | 江阴道达汽车饰件有限公司 | Long-acting pearl nickel technique |
| CN107904636A (en) * | 2017-11-24 | 2018-04-13 | 广东埃德伟控汽车部件有限公司 | A kind of acid double-colored material plating solution glue and preparation method thereof |
| CN109898073A (en) * | 2019-04-10 | 2019-06-18 | 珠海市永刚塑料制品有限公司 | A kind of plastic cement electroplating technology of automobile decoration piece product processing |
| CN109946169A (en) * | 2019-04-10 | 2019-06-28 | 珠海市永刚塑料制品有限公司 | A kind of tensile test technique of automobile decoration piece product |
| CN116446026A (en) * | 2023-03-17 | 2023-07-18 | 江门市顺高电镀有限公司 | Efficient and environment-friendly hardware electroplating treatment system and process |
| CN116446026B (en) * | 2023-03-17 | 2023-10-27 | 江门市顺高电镀有限公司 | Efficient and environment-friendly hardware electroplating treatment system and process |
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Denomination of invention: Electroplating process for the surface of automobile interior trim parts Effective date of registration: 20210907 Granted publication date: 20181127 Pledgee: Langxi SME Financing Guarantee Co.,Ltd. Pledgor: XUANCHENG TUOXIN PRECISION TECHNOLOGY Co.,Ltd. Registration number: Y2021980008901 |
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Date of cancellation: 20230331 Granted publication date: 20181127 Pledgee: Langxi SME Financing Guarantee Co.,Ltd. Pledgor: XUANCHENG TUOXIN PRECISION TECHNOLOGY CO.,LTD. Registration number: Y2021980008901 |