CN105420769A - Tourist souvenir furnishing article - Google Patents
Tourist souvenir furnishing article Download PDFInfo
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- CN105420769A CN105420769A CN201510979883.XA CN201510979883A CN105420769A CN 105420769 A CN105420769 A CN 105420769A CN 201510979883 A CN201510979883 A CN 201510979883A CN 105420769 A CN105420769 A CN 105420769A
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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
- C25D3/38—Electroplating: Baths therefor from solutions of copper
-
- 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
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
- C25D3/06—Electroplating: Baths therefor from solutions of chromium from solutions of trivalent chromium
-
- 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
- C25D5/10—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
-
- 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
- C25D5/16—Electroplating with layers of varying thickness
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a tourist souvenir furnishing article. The furnishing article is characterized in that a base material is produced by die-casting 2# zinc alloy, wherein a cyanide-free copper pre-plating layer, an acidic copper plating layer, a semi-bright nickel plating layer, a high sulfur nickel electroplating layer, a bright nickel electroplating layer and a chrome electroplating layer, which are correspondingly 3 to 5 microns, 1 to 2 microns, 0.5 to 1 microns, 2 to 3 microns, 1 to 2 microns, and 6 to 8 microns in thickness, are sequentially arranged on the outer surface of the base material.
Description
Technical field
The present invention relates to ornameutal handiwork field, particularly a kind of tourist souvenir goods of furniture for display rather than for use.
Background technology
Because zinc alloy low price, fusing point are low, particularly extrusion process performance is good, has been widely used in the making of tourist souvenir goods of furniture for display rather than for use.As scenic spot simulation moulding, commemorate goods of furniture for display rather than for use etc.
But zinc alloy diecasting appearance is greyish white, there is various defect on surface, as: slag inclusion, shrinkage cavity etc., therefore, in not surface treated situation, its usability and ornamental all non-constant.Common surface treatment method is plating.According to difference that is ornamental, Functional Requirement, electroplating technology has certain difference.As, have that appearance is gold-plated, silver-plated, chromium plating, plating rifle look etc. point.But regardless of the coating of appearance, the pre-electroplating method of zinc alloy diecasting is identical.So-called preplating, refers to the coating directly contacted with zinc alloy.Plating after preplating, will adopt diverse ways according to different demand.
The electroplating technology that zinc alloy diecasting is conventional is: 1. treatment before plating-cyanide electroplating preplating-tetra-sodium copper facing-acid copper-plating-bright nickel plating-gold-plated (silver-plated); 2. treatment before plating-neutral nickel plating preplating-tetra-sodium copper facing-acid copper-plating-bright nickel plating-gold-plated (silver-plated).
Cyanide electroplating pre-metallization solution is containing cuprous cyanide 30g/L, sodium cyanide 33g/L.Cyanide copper plating process stable performance, easy and simple to handle, but owing to employing a large amount of prussiate, all there is very strict requirement to the process of the plating three wastes, explained hereafter management.Again due in recent years; the zinc alloy diecasting surface-treated development relevant to cyanide copper plating process is very rapid; make to electroplate containing cyanogen the environmental pollution brought in rising trend, therefore, existing cyanide copper plating process can not meet the requirement of industrial development and environment protection.Particularly State Economic and Trade Commission promulgated the 32nd command last year, included one of backward technique must forcing for 2003 to eliminate in by containing cyanogen plating.The alternative techniques finding cyanide electroplating has been not only a technical problem.
Neutral nickel preplating is mainly used in the rack plating process of zinc alloy diecasting, and the main component of plating solution is NiSO
4, Trisodium Citrate etc., containing prussiate, but the bonding force of nickel layer and matrix can not show a candle to the performance of cyanide electroplating preplating, and conforming product rate is low.And due to the activation capacity of neutral nickel-plating liquid to zinc alloy diecasting poor, also have higher requirement to its pre-treatment.Neutral nickel plating technology generally can not be used for the barrel plating of zinc alloy diecasting, and therefore, range of application is not industrially very extensive.In addition, the solution cost of neutral nickel plating is higher, and wastewater treatment difficulty, limits its large-scale application industrially.
Other zinc alloy diecasting pre-plating process also have electroless copper, HEDP copper facing, gunmetal plating etc., all fail to obtain practical application in the industry because of problems such as bonding force, cost, wastewater treatments.
Almost also do not report the decoration chrome plating of tourist souvenir goods of furniture for display rather than for use in prior art, the present invention is intended to the above-mentioned defect overcoming prior art.
Summary of the invention
For the deficiencies in the prior art, an object of the present invention is to provide a kind of tourist souvenir goods of furniture for display rather than for use, by improving electroplating technology, the electroplating technology environmental pollution adopted is few, make the bonding force between the goods of furniture for display rather than for use base material of preparation and coating high, corrosion resistance of coating is high, and coating surface light is attractive in appearance.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of tourist souvenir goods of furniture for display rather than for use, the base material of this goods of furniture for display rather than for use is 2# zinc alloy, is produced by extrusion process; At the outside surface of base material, there is non-cyanide pre-plating copper coating, acid copper-plating coating, half bright nickel plating coating, plating high-sulfur nickel coating, electroplating bright nickel coating and electrodeposited chromium coating successively; The thickness of above-mentioned each coating is respectively 3-5 μm, 1-2 μm, 0.5-1 μm, 2-3 μm, 1-2 μm, 6-8 μm; Wherein, each coating is formed by following steps:
(1) non-cyanide pre-plating copper: wherein solution composition is cupric pyrophosphate 80-90g/L, trisodium phosphate 140-150g/L, trisodium citrate 200-220g/L, Seignette salt 36-40g/L, HEDP15-17g/L, quadrol 160-180g/L; Bifluoride hydrogen ammonium 5-8g/L; Sodium Fluoride 2-3g/L, lithium fluoride 6-8g/L; Ammoniacal liquor adjust ph 8.5-9.5, electroplating technology is cathode current density: initial current density 2-7A/dm
2, time 6-8min; Working current density 1.5-2.5A/dm
2, time 10-12min;
(2) acid copper-plating: acid bright copper plating craft solution and operation steps as follows: copper sulfate (CuSO
45H
2o) 300-320g/L, sulfuric acid (ρ=1.84g/l) 20-22mL/L, chlorion 65-75mg/L, fill and lead up agent 0.7-0.9mL/L, open cylinder agent 3-6mL/L, brightening agent 0.2-0.3mL/L; Temperature 32-36 DEG C; Cathode current density 2-5A/dm
2, anodic current density 1.5-2.5A/dm
2; Pneumatic blending; Continuous filtration; Plating bath time 14-16min;
(3) semi-bright nickel is electroplated: nickel single nickel salt (NiSO
46H
2o) 230-240g/L, nickelous chloride (NiCl
26H
2o) 55-65g/L, H
3bO
338-50g/L, open cylinder agent 3-6mL/L, fill and lead up agent 0.8-1.0mL/L, temperature: 72-74 DEG C, pH:3.6-4.0, cathode current density: 3-5A/dm
2inflating stirring, continuous filtration; Plating bath time 20-30min;
(4) high-sulfur nickel is electroplated: single nickel salt (NiSO
46H
2o) 210-230g/L, nickelous chloride (NiCl
26H
2o) 45-55g/L, H
3bO
335-40g/L, wetting agent 1-5mL/L, temperature 30-40 DEG C, pH2.8-3.0, cathode current density 3.5-3.7A/dm
2; Mechanical stirring, continuous filtration; Plating bath time 1.5-2min;
(5) Bright Nickel Electroplating: single nickel salt (NiSO
46H
2o) 220-240g/L, nickelous chloride (NiCl
26H
2o) 42-44g/L, H
3bO
345-55g/L, key light agent 0.6-0.8mL/L, softening agent 6-8mL/L, auxiliary 5-7mL/L, wetting agent 1.0-1.2mL/L, temperature 48-52 DEG C, pH4.0-4.2, cathode current density 4-6A/dm
2, inflating stirring, continuous filtration; Plating bath time 25-35min;
(6) electrodeposited chromium: chromic anhydride 270-290g/L, sulfuric acid (ρ=1.84g/l) 1.0-1.2g/L, trivalent chromium 1.5-3.0g/L, appropriate additive, temperature 42-44 DEG C, cathode current density 12-14A/dm
2; Plating bath time 2-5min.
Key improvements of the present invention and beneficial effect as follows:
1) cyanide-free copper electroplating bottoming technique of the present invention is adopted, avoid the consequence that cyanide electroplating bottoming causes environment to be heavily polluted, it is a kind of environment-protective process, by the adjustment of the component to cyanide-free copper electroplating prime coat plating solution, determine suitable solution composition, and determine respective content on the basis of great many of experiments, make each component coordinated, guarantee that the bonding force making prime coat and base material zinc alloy improves, for subsequent plating layer provides good basis.
2) for the plating solution improvement of prime coat and the plating requirement of upper layer, determine acid copper-plating, plating semi-bright nickel, plating high-sulfur nickel, the middle transition coating design that Bright Nickel Electroplating is such, and according to such design result, the Optimal improvements composition of each transition layer plating solution on the basis of existing technology, wherein the present invention adjusts a significant design theory of each layer solution composition is not by means of only the plating effect adjustment of solution composition being ensured to this coating, also to consider the plating requirement of adjacent coating, namely entirety is coordinated, simultaneously, form according to plating solution, devise plating technic condition targetedly, facts have proved, middle each coating adopts the proportioning of component and each component concentration limited in technique scheme to reach the technique effect of expection, and the Composition Design of optional intermediate layer and component concentration depart from above-mentioned scope, effect will be caused sharply deteriorated, even effectively can not complete plating.
3) be all optimized on the basis of design at prime coat and transition layer, carrying out also to the chromium coating on final surface adaptive Optimal improvements, the particularly adjustment of plating technic condition.
4) control the thickness that above-mentioned technique obtains suitable each coating, such thickness can ensure that the neighbouring layer transition effect that be combined with each other is good, can ensure production efficiency again, guarantee overall coating film thickness uniformity simultaneously.If the thickness of every one deck is thinner than above-mentioned thickness, will the risk of plating leakage be had, simultaneously can not play each layer and answer role, and if thicker than above-mentioned coating, easily cause coating to combine loosely equally, easily cause peeling, the defect such as come off.Therefore, each layer collocation controls thickness and could solve technical problem of the present invention in above-mentioned scope, and reaches corresponding technique effect.
5) coating of the present invention's acquisition, solidity to corrosion is high, and hardness is high, and surface-brightening is clean and tidy.Through cross-cut tester experiment, non-scale does not peel off.Through salt mist experiment, colour-fast, nondiscoloration.
6) raw material used in the present invention, low price, low production cost, economic benefit significantly improves; Metal coating method of the present invention is simple, and the composition of solution is few, is easy to control, process stabilizing.
Embodiment
Embodiment one
A kind of tourist souvenir goods of furniture for display rather than for use, the base material of this goods of furniture for display rather than for use is 2# zinc alloy, is produced by extrusion process; At the outside surface of base material, there is non-cyanide pre-plating copper coating, acid copper-plating coating, half bright nickel plating coating, plating high-sulfur nickel coating, electroplating bright nickel coating and electrodeposited chromium coating successively; The thickness of above-mentioned each coating is respectively 3-5 μm, 1-2 μm, 0.5-1 μm, 2-3 μm, 1-2 μm, 6-8 μm; Wherein, each coating is formed by following steps:
(1) non-cyanide pre-plating copper: wherein solution composition is cupric pyrophosphate 80g/L, trisodium phosphate 150g/L, trisodium citrate 200g/L, Seignette salt 40g/L, HEDP15g/L, quadrol 180g/L; Bifluoride hydrogen ammonium 5g/L; Sodium Fluoride 3g/L, lithium fluoride 6g/L; Ammoniacal liquor adjust ph 9.5, electroplating technology is cathode current density: initial current density 2A/dm
2, time 8min; Working current density 1.5A/dm
2, time 12min;
(2) acid copper-plating: acid bright copper plating craft solution and operation steps as follows: copper sulfate (CuSO
45H
2o) 300g/L, sulfuric acid (ρ=1.84g/l) 22mL/L, chlorion 65mg/L, fill and lead up agent 0.9mL/L, open cylinder agent 3mL/L, brightening agent 0.3mL/L; Temperature 32 DEG C; Cathode current density 5A/dm
2, anodic current density 1.5A/dm
2; Pneumatic blending; Continuous filtration; Plating bath time 16min;
(3) semi-bright nickel is electroplated: nickel single nickel salt (NiSO
46H
2o) 230g/L, nickelous chloride (NiCl
26H
2o) 65g/L, H
3bO
338g/L, open cylinder agent 6mL/L, fill and lead up agent 0.8mL/L, temperature: 74 DEG C, pH:3.6, cathode current density: 5A/dm
2inflating stirring, continuous filtration; Plating bath time 20min;
(4) high-sulfur nickel is electroplated: single nickel salt (NiSO
46H
2o) 210g/L, nickelous chloride (NiCl
26H
2o) 55g/L, H
3bO
335g/L, wetting agent 5mL/L, temperature 30 DEG C, pH3.0, cathode current density 3.5A/dm
2; Mechanical stirring, continuous filtration; Plating bath time 2min;
(5) Bright Nickel Electroplating: single nickel salt (NiSO
46H
2o) 220g/L, nickelous chloride (NiCl
26H
2o) 44g/L, H
3bO
345g/L, key light agent 0.8mL/L, softening agent 6mL/L, auxiliary 7mL/L, wetting agent 1.0mL/L, temperature 52 DEG C, pH4.0, cathode current density 6A/dm
2, inflating stirring, continuous filtration; Plating bath time 25min;
(6) electrodeposited chromium: chromic anhydride 270g/L, sulfuric acid (ρ=1.84g/l) 1.2g/L, trivalent chromium 1.5g/L, appropriate additive, temperature 44 DEG C, cathode current density 12A/dm
2; Plating bath time 5min.
Embodiment two
A kind of tourist souvenir goods of furniture for display rather than for use, the base material of this goods of furniture for display rather than for use is 2# zinc alloy, is produced by extrusion process; At the outside surface of base material, there is non-cyanide pre-plating copper coating, acid copper-plating coating, half bright nickel plating coating, plating high-sulfur nickel coating, electroplating bright nickel coating and electrodeposited chromium coating successively; The thickness of above-mentioned each coating is respectively 3-5 μm, 1-2 μm, 0.5-1 μm, 2-3 μm, 1-2 μm, 6-8 μm; Wherein, each coating is formed by following steps:
(1) non-cyanide pre-plating copper: wherein solution composition is cupric pyrophosphate 90g/L, trisodium phosphate 140g/L, trisodium citrate 220g/L, Seignette salt 36g/L, HEDP17g/L, quadrol 160g/L; Bifluoride hydrogen ammonium 8g/L; Sodium Fluoride 2g/L, lithium fluoride 8g/L; Ammoniacal liquor adjust ph 8.5, electroplating technology is cathode current density: initial current density 7A/dm
2, time 6min; Working current density 2.5A/dm
2, time 10min;
(2) acid copper-plating: acid bright copper plating craft solution and operation steps as follows: copper sulfate (CuSO
45H
2o) 320g/L, sulfuric acid (ρ=1.84g/l) 20mL/L, chlorion 75mg/L, fill and lead up agent 0.7mL/L, open cylinder agent 6mL/L, brightening agent 0.2mL/L; Temperature 36 DEG C; Cathode current density 2A/dm
2, anodic current density 2.5A/dm
2; Pneumatic blending; Continuous filtration; Plating bath time 14min.
(3) semi-bright nickel is electroplated: nickel single nickel salt (NiSO
46H
2o) 240g/L, nickelous chloride (NiCl
26H
2o) 55g/L, H
3bO
350g/L, open cylinder agent 3mL/L, fill and lead up agent 1.0mL/L, temperature: 72 DEG C, pH:4.0, cathode current density: 3A/dm
2inflating stirring, continuous filtration; Plating bath time 30min.
(4) high-sulfur nickel is electroplated: single nickel salt (NiSO
46H
2o) 230g/L, nickelous chloride (NiCl
26H
2o) 45g/L, H
3bO
340g/L, wetting agent 1mL/L, temperature 40 DEG C, pH2.8, cathode current density 3.7A/dm
2; Mechanical stirring, continuous filtration; Plating bath time 1.5min.
(5) Bright Nickel Electroplating: single nickel salt (NiSO
46H
2o) 240g/L, nickelous chloride (NiCl
26H
2o) 42g/L, H
3bO
355g/L, key light agent 0.6mL/L, softening agent 8mL/L, auxiliary 5mL/L, wetting agent 1.2mL/L, temperature 48 DEG C, pH4.2, cathode current density 4A/dm
2, inflating stirring, continuous filtration; Plating bath time 35min.
(6) electrodeposited chromium: chromic anhydride 290g/L, sulfuric acid (ρ=1.84g/l) 1.0g/L, trivalent chromium 3.0g/L, appropriate additive, temperature 42 DEG C, cathode current density 14A/dm
2; Plating bath time 2min.
Embodiment three
A kind of tourist souvenir goods of furniture for display rather than for use, the base material of this goods of furniture for display rather than for use is 2# zinc alloy, is produced by extrusion process; At the outside surface of base material, there is non-cyanide pre-plating copper coating, acid copper-plating coating, half bright nickel plating coating, plating high-sulfur nickel coating, electroplating bright nickel coating and electrodeposited chromium coating successively; The thickness of above-mentioned each coating is respectively 3-5 μm, 1-2 μm, 0.5-1 μm, 2-3 μm, 1-2 μm, 6-8 μm; Wherein, each coating is formed by following steps:
(1) non-cyanide pre-plating copper: wherein solution composition is cupric pyrophosphate 85g/L, tetra-sodium, 145g/L, trisodium citrate 210g/L, Seignette salt 38g/L, HEDP16g/L, quadrol 170g/L; Bifluoride hydrogen ammonium 6g/L; Sodium Fluoride 2.5g/L, lithium fluoride 7g/L; Ammoniacal liquor adjust ph 9, electroplating technology is cathode current density: initial current density 5A/dm
2, time 7min; Working current density 2A/dm
2, time 11min;
(2) acid copper-plating: acid bright copper plating craft solution and operation steps as follows: copper sulfate (CuSO
45H
2o) 310g/L, sulfuric acid (ρ=1.84g/l) 21mL/L, chlorion 70mg/L, fill and lead up agent 0.8mL/L, open cylinder agent 5mL/L, brightening agent 0.25mL/L; Temperature 34 DEG C; Cathode current density 4A/dm
2, anodic current density 2A/dm
2; Pneumatic blending; Continuous filtration; Plating bath time 15min.
(3) semi-bright nickel is electroplated: nickel single nickel salt (NiSO
46H
2o) 235g/L, nickelous chloride (NiCl
26H
2o) 60g/L, H
3bO
344g/L, open cylinder agent 5mL/L, fill and lead up agent 0.9mL/L, temperature: 73 DEG C, pH:3.8, cathode current density: 4A/dm
2inflating stirring, continuous filtration; Plating bath time 25min.
(4) high-sulfur nickel is electroplated: single nickel salt (NiSO
46H
2o) 220g/L, nickelous chloride (NiCl
26H
2o) 50g/L, H
3bO
337g/L, wetting agent 3mL/L, temperature 35 DEG C, pH2.9, cathode current density 3.6A/dm
2; Mechanical stirring, continuous filtration; Plating bath time 2min.
(5) Bright Nickel Electroplating: single nickel salt (NiSO
46H
2o) 230g/L, nickelous chloride (NiCl
26H
2o) 43g/L, H
3bO
350g/L, key light agent 0.7mL/L, softening agent 7mL/L, auxiliary 6mL/L, wetting agent 1.1mL/L, temperature 50 C, pH4.1, cathode current density 5A/dm
2, inflating stirring, continuous filtration; Plating bath time 30min.
(6) electrodeposited chromium: chromic anhydride 280g/L, sulfuric acid (ρ=1.84g/l) 1.1g/L, trivalent chromium 2.3g/L, appropriate additive, temperature 43 DEG C, cathode current density 13A/dm
2; Plating bath time 4min.
Applicant states, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, namely do not mean that the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (1)
1. a tourist souvenir goods of furniture for display rather than for use, the base material of this goods of furniture for display rather than for use is 2# zinc alloy, is produced by extrusion process; At the outside surface of base material, there is non-cyanide pre-plating copper coating, acid copper-plating coating, half bright nickel plating coating, plating high-sulfur nickel coating, electroplating bright nickel coating and electrodeposited chromium coating successively; It is characterized in that, the thickness of above-mentioned each coating is respectively 3-5 μm, 1-2 μm, 0.5-1 μm, 2-3 μm, 1-2 μm, 6-8 μm; Each coating is formed by following steps:
(1) non-cyanide pre-plating copper: wherein solution composition is cupric pyrophosphate 80-90g/L, trisodium phosphate 140-150g/L, trisodium citrate 200-220g/L, Seignette salt 36-40g/L, HEDP15-17g/L, quadrol 160-180g/L; Bifluoride hydrogen ammonium 5-8g/L; Sodium Fluoride 2-3g/L, lithium fluoride 6-8g/L; Ammoniacal liquor adjust ph 8.5-9.5, electroplating technology is cathode current density: initial current density 2-7A/dm
2, time 6-8min; Working current density 1.5-2.5A/dm
2, time 10-12min;
(2) acid copper-plating: acid bright copper plating craft solution and operation steps as follows: copper sulfate (CuSO
45H
2o) 300-320g/L, sulfuric acid (ρ=1.84g/l) 20-22mL/L, chlorion 65-75mg/L, fill and lead up agent 0.7-0.9mL/L, open cylinder agent 3-6mL/L, brightening agent 0.2-0.3mL/L; Temperature 32-36 DEG C; Cathode current density 2-5A/dm
2, anodic current density 1.5-2.5A/dm
2; Pneumatic blending; Continuous filtration; Plating bath time 14-16min;
(3) semi-bright nickel is electroplated: nickel single nickel salt (NiSO
46H
2o) 230-240g/L, nickelous chloride (NiCl
26H
2o) 55-65g/L, H
3bO
338-50g/L, open cylinder agent 3-6mL/L, fill and lead up agent 0.8-1.0mL/L, temperature: 72-74 DEG C, pH:3.6-4.0, cathode current density: 3-5A/dm
2inflating stirring, continuous filtration; Plating bath time 20-30min;
(4) high-sulfur nickel is electroplated: single nickel salt (NiSO
46H
2o) 210-230g/L, nickelous chloride (NiCl
26H
2o) 45-55g/L, H
3bO
335-40g/L, wetting agent 1-5mL/L, temperature 30-40 DEG C, pH2.8-3.0, cathode current density 3.5-3.7A/dm
2; Mechanical stirring, continuous filtration; Plating bath time 1.5-2min;
(5) Bright Nickel Electroplating: single nickel salt (NiSO
46H
2o) 220-240g/L, nickelous chloride (NiCl
26H
2o) 42-44g/L, H
3bO
345-55g/L, key light agent 0.6-0.8mL/L, softening agent 6-8mL/L, auxiliary 5-7mL/L, wetting agent 1.0-1.2mL/L, temperature 48-52 DEG C, pH4.0-4.2, cathode current density 4-6A/dm
2, inflating stirring, continuous filtration; Plating bath time 25-35min;
(6) electrodeposited chromium: chromic anhydride 270-290g/L, sulfuric acid (ρ=1.84g/l) 1.0-1.2g/L, trivalent chromium 1.5-3.0g/L, appropriate additive, temperature 42-44 DEG C, cathode current density 12-14A/dm
2; Plating bath time 2-5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510979883.XA CN105420769A (en) | 2015-12-24 | 2015-12-24 | Tourist souvenir furnishing article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510979883.XA CN105420769A (en) | 2015-12-24 | 2015-12-24 | Tourist souvenir furnishing article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105420769A true CN105420769A (en) | 2016-03-23 |
Family
ID=55499296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510979883.XA Pending CN105420769A (en) | 2015-12-24 | 2015-12-24 | Tourist souvenir furnishing article |
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| WO2023164994A1 (en) * | 2022-03-01 | 2023-09-07 | 九牧厨卫股份有限公司 | Bactericidal environmentally friendly composite coating, preparation method therefor, and bactericidal environmentally friendly product |
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