CN105624748A - Manufacturing method of tourist souvenir ornament - Google Patents

Manufacturing method of tourist souvenir ornament Download PDF

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Publication number
CN105624748A
CN105624748A CN201510979884.4A CN201510979884A CN105624748A CN 105624748 A CN105624748 A CN 105624748A CN 201510979884 A CN201510979884 A CN 201510979884A CN 105624748 A CN105624748 A CN 105624748A
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plating
current density
nickel
cathode
agent
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张颖
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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
    • 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
    • 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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/38—Electroplating: Baths therefor from solutions of copper

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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 Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

The invention discloses a manufacturing method of a tourist souvenir ornament. The manufacturing method comprises the following steps: (1) designing modeling of the tourist souvenir ornament by using a computer; (2) manufacturing a die casting metal mold according to the molding designed in the step (1); (3) selecting 2# zinc alloy and smelting; and meanwhile brushing coating on the mold obtained from the step (2) and pre-heating; (4) carrying out die casting molding by using a horizontal die casting machine; (5) carrying out demolding cleaning; and (6) electroplating, wherein electroplating comprises (1) treatment before plating, (2) cyanide-free copper pre-plating, (3) acid copper plating, (4) semi-bright nickel electroplating, (5), high sulfur nickel electroplating, (6) bright nickel electroplating and (7) chromium electroplating. A plating film of a plating layer obtained by the manufacturing method is uniform in thickness, high in corrosion resistance, high in hardness and bright and neat in surface, and the plating layer does not peel, fade or discolor.

Description

A kind of manufacture method of tourist souvenir goods of furniture for display rather than for use
Technical field
The present invention relates to ornameutal handiwork field, particularly to the manufacture method of a kind of tourist souvenir goods of furniture for display rather than for use.
Background technology
Owing to kirsite low price, fusing point are low, particularly extrusion process performance is good, is widely used in the making of tourist souvenir goods of furniture for display rather than for use. As scenic spot is simulated moulding, commemorated goods of furniture for display rather than for use etc.
But, zinc alloy diecasting appearance is greyish white, and there is various defect on surface, as: slag inclusion, shrinkage cavity etc., therefore, in not surface treated situation, its usability and dicoration are all excessively poor. Common surface treatment method is plating. According to difference ornamental, Functional Requirement, electroplating technology has certain difference. As, have that appearance is gold-plated, silver-plated, chromium plating, plating rifle color 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 kirsite. Plating after preplating, will adopt diverse ways according to different demands.
The electroplating technology that zinc alloy diecasting is conventional is: 1. treatment before plating-cyanide electroplating preplating-pyrophosphoric acid copper facing-acid copper-plating-bright nickel plating-gold-plated (silver-plated); 2. treatment before plating-neutrality nickel plating preplating-pyrophosphoric acid copper facing-acid copper-plating-bright nickel plating-gold-plated (silver-plated).
Cyanide electroplating pre-metallization solution is containing Cupricin. 30g/L, Cyanogran. 33g/L. Cyanide copper plating process stable performance, easy and simple to handle, but owing to employing a large amount of cyanide, the plating process of the three wastes, explained hereafter management are all had very strict requirement. Again due in recent years; the development of the zinc alloy diecasting surface treatment relevant to cyanide copper plating process is very rapid; making the environmental pollution that the plating containing cyanogen brings in rising trend, therefore, existing cyanide copper plating process can not meet the requirement of industrial development and environmental conservation. Particularly State Economic and Trade Commission promulgated the 32nd command last year, the plating containing cyanogen is included in 2003 and must force one of backward technique of eliminating. 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 NiSO4, sodium citrate etc., without cyanide, but the adhesion of nickel coating and matrix can not show a candle to the performance of cyanide electroplating preplating, and conforming product rate is low. And owing to neutral nickel-plating liquid is poor to the activation capacity of zinc alloy diecasting, its pre-treatment is also had higher requirement. Neutral nickel plating technology fundamentally cannot be used the barrel plating of zinc alloy diecasting, and therefore, range of application industrially is not very extensive. It addition, the solution of neutral nickel plating is relatively costly, wastewater treatment difficulty, limit its large-scale application industrially.
Other zinc alloy diecasting pre-plating process also have electroless copper, HEDP copper facing, signal bronze plating etc., all fail to obtain in the industry practical application because of problems such as adhesion, cost, wastewater treatments.
In prior art to the decoration chrome plating of tourist souvenir goods of furniture for display rather than for use almost it is not yet reported that, it is contemplated that overcome the drawbacks described above of prior art.
Summary of the invention
For the deficiencies in the prior art, an object of the present invention is in that to provide the manufacture method of a kind of tourist souvenir goods of furniture for display rather than for use, the method includes making souvenir goods of furniture for display rather than for use die casting and plating two large divisions, wherein emphatically electroplating technology is improved, the electroplating technology environmental pollution adopted is few, adhesion between base material and coating is high, and 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:
The manufacture method of a kind of tourist souvenir goods of furniture for display rather than for use, described method comprises the steps:
1) with the moulding of computer design tourist souvenir goods of furniture for display rather than for use;
2) according to step 1) moulding that designs makes die-cast metal mould;
3) 2# kirsite, melting are selected; Simultaneously to step 2) mould carry out brushing paint and preheat;
4) horizontal plunger die casting machine die cast is adopted;
5) depanning cleaning;
6) plating;
Wherein, described plating comprises the steps:
(1) treatment before plating: include surface degreasing grease removal, acid pickling and rust removing, activated process to improve the adhesion of coating;
(2) non-cyanide pre-plating copper: wherein solution composition is Copper pyrophosphate. 80-90g/L, sodium pyrophosphate 140-150g/L, trisodium citrate 200-220g/L, sodium potassium tartrate tetrahydrate 36-40g/L, HEDP15-17g/L, ethylenediamine 160-180g/L; Bifluoride hydrogen ammonium 5-8g/L; Sodium fluoride 2-3g/L, lithium fluoride 6-8g/L; Ammonia regulates pH value 8.5-9.5, and electroplating technology is cathode-current density: initial current density 2-7A/dm2, time 6-8min; Working current density 1.5-2.5A/dm2, time 10-12min;
(3) acid copper-plating: acid bright copper plating craft solution and operating procedure are as follows: copper sulfate (CuSO4��5H2O) 300-320g/L, sulphuric acid (��=1.84g/l) 20-22mL/L, chloride ion 65-75mg/L, fill and lead up agent 0.7-0.9mL/L, open cylinder agent 3-6mL/L, brightener 0.2-0.3mL/L; Temperature 32-36 DEG C; Cathode-current density 2-5A/dm2, anodic current density 1.5-2.5A/dm2Air stirring; Filter continuously; Plating bath time 14-16min;
(4) plating semi-bright nickel: nickel nickel sulfate (NiSO4��6H2O) 230-240g/L, Nickel dichloride. (NiCl2��6H2O) 55-65g/L, H3BO338-50g/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/dm2Inflating stirring, filters continuously; Plating bath time 20-30min;
(5) plating high-sulfur nickel: nickel sulfate (NiSO4��6H2O) 210-230g/L, Nickel dichloride. (NiCl2��6H2O) 45-55g/L, H3BO335-40g/L, wetting agent 1-5mL/L, temperature 30-40 DEG C, pH2.8-3.0, cathode-current density 3.5-3.7A/dm2; Mechanical agitation, filters continuously; Plating bath time 1.5-2min;
(6) Bright Nickel Electroplating: nickel sulfate (NiSO4��6H2O) 220-240g/L, Nickel dichloride. (NiCl2��6H2O) 42-44g/L, H3BO345-55g/L, key light agent 0.6-0.8mL/L, softening agent 6-8mL/L, adjuvant 5-7mL/L, wetting agent 1.0-1.2mL/L, temperature 48-52 DEG C, pH4.0-4.2, cathode-current density 4-6A/dm2, inflating stirring, filters continuously; Plating bath time 25-35min;
(7) electrodeposited chromium: chromic anhydride 270-290g/L, sulphuric acid (��=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/dm2; Plating bath time 2-5min.
The key improvements of the present invention and having the beneficial effect that:
1) the 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 it is a kind of environment-protective process, adjustment by the component to cyanide-free copper electroplating prime coat plating solution, determine suitable solution composition, and on the basis of great many of experiments, determine respective content so that each component coordinated, guarantee to improve so that the adhesion of prime coat with base material kirsite, provide good basis for subsequent plating layer.
2) for the plating requirement of the plating solution improvement of prime coat and surface layer, determine acid copper-plating, plating semi-bright nickel, plating high-sulfur nickel, the such middle transition coating design of Bright Nickel Electroplating, and according to such design result, the Optimal improvements composition of each transition zone plating solution on the basis of existing technology, wherein the present invention adjusts a significant design theory of each layer solution composition is not only by the plating effect adjusting this coating of guarantee to solution composition, also to consider the plating requirement of adjacent coating, namely entirety coordinates, simultaneously, form according to plating solution, devise plating technic condition targetedly, facts have proved, middle each coating adopts the proportioning of component and each constituent content limited in technique scheme to reach intended technique effect, and the composition design of optional intermediate layer and constituent content deviate above-mentioned scope, will result in effect sharply to deteriorate, even can not efficiently accomplish plating.
3) all it is optimized on the basis of design at prime coat and transition zone, also adaptive Optimal improvements, the particularly adjustment of plating technic condition to the carrying out of the chromium coating on final surface.
4) coating that the present invention obtains, coating film thickness is uniform, and corrosion resistance is high, and hardness is high, and surface-brightening is clean and tidy. Testing through cross-cut tester, non-scale does not peel off. Through salt mist experiment, colour-fast, invariant color.
5) raw material used in the present invention, low price, low production cost, economic benefit significantly improves; The metal coating method of the present invention is simple, and the composition of solution is few, it is easy to control, process stabilizing.
Detailed description of the invention
Embodiment one
The manufacture method of a kind of tourist souvenir goods of furniture for display rather than for use, described method comprises the steps:
1) with the moulding of computer design tourist souvenir goods of furniture for display rather than for use;
2) according to step 1) moulding that designs makes die-cast metal mould;
3) 2# kirsite, melting are selected; Simultaneously to step 2) mould carry out brushing paint and preheat;
4) horizontal plunger die casting machine die cast is adopted;
5) depanning cleaning;
6) plating;
Wherein, described plating comprises the steps:
(1) treatment before plating: include surface degreasing grease removal, acid pickling and rust removing, activated process to improve the adhesion of coating;
(2) non-cyanide pre-plating copper: wherein solution composition is Copper pyrophosphate. 80g/L, sodium pyrophosphate 150g/L, trisodium citrate 200g/L, sodium potassium tartrate tetrahydrate 40g/L, HEDP15g/L, ethylenediamine 180g/L; Bifluoride hydrogen ammonium 5g/L; Sodium fluoride 3g/L, lithium fluoride 6g/L; Ammonia regulates pH value 9.5, and electroplating technology is cathode-current density: initial current density 2A/dm2, time 8min; Working current density 1.5A/dm2, time 12min;
(3) acid copper-plating: acid bright copper plating craft solution and operating procedure are as follows: copper sulfate (CuSO4��5H2O) 300g/L, sulphuric acid (��=1.84g/l) 22mL/L, chloride ion 65mg/L, fill and lead up agent 0.9mL/L, open cylinder agent 3mL/L, brightener 0.3mL/L; Temperature 32 DEG C; Cathode-current density 5A/dm2, anodic current density 1.5A/dm2; Air stirring; Filter continuously; Plating bath time 16min;
(4) plating semi-bright nickel: nickel nickel sulfate (NiSO4��6H2O) 230g/L, Nickel dichloride. (NiCl2��6H2O) 65g/L, H3BO338g/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/dm2Inflating stirring, filters continuously; Plating bath time 20min;
(5) plating high-sulfur nickel: nickel sulfate (NiSO4��6H2O) 210g/L, Nickel dichloride. (NiCl2��6H2O) 55g/L, H3BO335g/L, wetting agent 5mL/L, temperature 30 DEG C, pH3.0, cathode-current density 3.5A/dm2; Mechanical agitation, filters continuously; Plating bath time 2min;
(6) Bright Nickel Electroplating: nickel sulfate (NiSO4��6H2O) 220g/L, Nickel dichloride. (NiCl2��6H2O) 44g/L, H3BO345g/L, key light agent 0.8mL/L, softening agent 6mL/L, adjuvant 7mL/L, wetting agent 1.0mL/L, temperature 52 DEG C, pH4.0, cathode-current density 6A/dm2, inflating stirring, filters continuously; Plating bath time 25min;
(7) electrodeposited chromium: chromic anhydride 270g/L, sulphuric acid (��=1.84g/l) 1.2g/L, trivalent chromium 1.5g/L, appropriate additive, temperature 44 DEG C, cathode-current density 12A/dm2; Plating bath time 5min.
Embodiment two
The manufacture method of a kind of tourist souvenir goods of furniture for display rather than for use, described method comprises the steps:
1) with the moulding of computer design tourist souvenir goods of furniture for display rather than for use;
2) according to step 1) moulding that designs makes die-cast metal mould;
3) 2# kirsite, melting are selected; Simultaneously to step 2) mould carry out brushing paint and preheat;
4) horizontal plunger die casting machine die cast is adopted;
5) depanning cleaning;
6) plating;
Wherein, described plating comprises the steps:
(1) treatment before plating: include surface degreasing grease removal, acid pickling and rust removing, activated process to improve the adhesion of coating;
(2) non-cyanide pre-plating copper: wherein solution composition is Copper pyrophosphate. 90g/L, sodium pyrophosphate 140g/L, trisodium citrate 220g/L, sodium potassium tartrate tetrahydrate 36g/L, HEDP17g/L, ethylenediamine 160g/L; Bifluoride hydrogen ammonium 8g/L; Sodium fluoride 2g/L, lithium fluoride 8g/L; Ammonia regulates pH value 8.5, and electroplating technology is cathode-current density: initial current density 7A/dm2, time 6min; Working current density 2.5A/dm2, time 10min;
(3) acid copper-plating: acid bright copper plating craft solution and operating procedure are as follows: copper sulfate (CuSO4��5H2O) 320g/L, sulphuric acid (��=1.84g/l) 20mL/L, chloride ion 75mg/L, fill and lead up agent 0.7mL/L, open cylinder agent 6mL/L, brightener 0.2mL/L; Temperature 36 DEG C; Cathode-current density 2A/dm2, anodic current density 2.5A/dm2; Air stirring; Filter continuously; Plating bath time 14min.
(4) plating semi-bright nickel: nickel nickel sulfate (NiSO4��6H2O) 240g/L, Nickel dichloride. (NiCl2��6H2O) 55g/L, H3BO350g/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/dm2Inflating stirring, filters continuously; Plating bath time 30min.
(5) plating high-sulfur nickel: nickel sulfate (NiSO4��6H2O) 230g/L, Nickel dichloride. (NiCl2��6H2O) 45g/L, H3BO340g/L, wetting agent 1mL/L, temperature 40 DEG C, pH2.8, cathode-current density 3.7A/dm2; Mechanical agitation, filters continuously; Plating bath time 1.5min.
(6) Bright Nickel Electroplating: nickel sulfate (NiSO4��6H2O) 240g/L, Nickel dichloride. (NiCl2��6H2O) 42g/L, H3BO355g/L, key light agent 0.6mL/L, softening agent 8mL/L, adjuvant 5mL/L, wetting agent 1.2mL/L, temperature 48 DEG C, pH4.2, cathode-current density 4A/dm2, inflating stirring, filters continuously; Plating bath time 35min.
(7) electrodeposited chromium: chromic anhydride 290g/L, sulphuric acid (��=1.84g/l) 1.0g/L, trivalent chromium 3.0g/L, appropriate additive, temperature 42 DEG C, cathode-current density 14A/dm2; Plating bath time 2min.
Embodiment three
The manufacture method of a kind of tourist souvenir goods of furniture for display rather than for use, described method comprises the steps:
1) with the moulding of computer design tourist souvenir goods of furniture for display rather than for use;
2) according to step 1) moulding that designs makes die-cast metal mould;
3) 2# kirsite, melting are selected; Simultaneously to step 2) mould carry out brushing paint and preheat;
4) horizontal plunger die casting machine die cast is adopted;
5) depanning cleaning;
6) plating;
Wherein, described plating comprises the steps:
(1) treatment before plating: include surface degreasing grease removal, acid pickling and rust removing, activated process to improve the adhesion of coating;
(2) non-cyanide pre-plating copper: wherein solution composition is Copper pyrophosphate. 85g/L, pyrophosphoric acid, 145g/L, trisodium citrate 210g/L, sodium potassium tartrate tetrahydrate 38g/L, HEDP16g/L, ethylenediamine 170g/L; Bifluoride hydrogen ammonium 6g/L; Sodium fluoride 2.5g/L, lithium fluoride 7g/L; Ammonia regulates pH value 9, and electroplating technology is cathode-current density: initial current density 5A/dm2, time 7min; Working current density 2A/dm2, time 11min;
(3) acid copper-plating: acid bright copper plating craft solution and operating procedure are as follows: copper sulfate (CuSO4��5H2O) 310g/L, sulphuric acid (��=1.84g/l) 21mL/L, chloride ion 70mg/L, fill and lead up agent 0.8mL/L, open cylinder agent 5mL/L, brightener 0.25mL/L; Temperature 34 DEG C; Cathode-current density 4A/dm2, anodic current density 2A/dm2; Air stirring; Filter continuously; Plating bath time 15min.
(4) plating semi-bright nickel: nickel nickel sulfate (NiSO4��6H2O) 235g/L, Nickel dichloride. (NiCl2��6H2O) 60g/L, H3BO344g/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/dm2Inflating stirring, filters continuously; Plating bath time 25min.
(5) plating high-sulfur nickel: nickel sulfate (NiSO4��6H2O) 220g/L, Nickel dichloride. (NiCl2��6H2O) 50g/L, H3BO237g/L, wetting agent 3mL/L, temperature 35 DEG C, pH2.9, cathode-current density 3.6A/dm2; Mechanical agitation, filters continuously; Plating bath time 2min.
(6) Bright Nickel Electroplating: nickel sulfate (NiSO4��6H2O) 230g/L, Nickel dichloride. (NiCl2��6H2O) 43g/L, H3BO350g/L, key light agent 0.7mL/L, softening agent 7mL/L, adjuvant 6mL/L, wetting agent 1.1mL/L, temperature 50 C, pH4.1, cathode-current density 5A/dm2, inflating stirring, filters continuously; Plating bath time 30min.
(7) electrodeposited chromium: chromic anhydride 280g/L, sulphuric acid (��=1.84g/l) 1.1g/L, trivalent chromium 2.3g/L, appropriate additive, temperature 43 DEG C, cathode-current density 13A/dm2; Plating bath time 4min.
Applicant states, the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment, but the invention is not limited in above-mentioned detailed process equipment and technological process, namely do not mean that the present invention has to rely on above-mentioned detailed process equipment and technological process could be implemented. The equivalence of each raw material of product of the present invention, it will be clearly understood that any improvement in the present invention, is replaced and the interpolation of auxiliary element, concrete way choice etc. by person of ordinary skill in the field, all falls within protection scope of the present invention and open scope.

Claims (1)

1. a manufacture method for tourist souvenir goods of furniture for display rather than for use, described method comprises the steps:
1) with the moulding of computer design tourist souvenir goods of furniture for display rather than for use;
2) according to step 1) moulding that designs makes die-cast metal mould;
3) 2# kirsite, melting are selected; Simultaneously to step 2) mould carry out brushing paint and preheat;
4) horizontal plunger die casting machine die cast is adopted;
5) depanning cleaning;
6) plating;
It is characterized in that, described plating comprises the steps:
(1) treatment before plating: include surface degreasing grease removal, acid pickling and rust removing, activated process to improve the adhesion of coating;
(2) non-cyanide pre-plating copper: wherein solution composition is Copper pyrophosphate. 80-90g/L, sodium pyrophosphate 140-150g/L, trisodium citrate 200-220g/L, sodium potassium tartrate tetrahydrate 36-40g/L, HEDP15-17g/L, ethylenediamine 160-180g/L; Bifluoride hydrogen ammonium 5-8g/L; Sodium fluoride 2-3g/L, lithium fluoride 6-8g/L; Ammonia regulates pH value 8.5-9.5, and electroplating technology is cathode-current density: initial current density 2-7A/dm2, time 6-8min; Working current density 1.5-2.5A/dm2, time 10-12min;
(3) acid copper-plating: acid bright copper plating craft solution and operating procedure are as follows: copper sulfate (CuSO4��5H2O) 300-320g/L, sulphuric acid (��=1.84g/l) 20-22mL/L, chloride ion 65-75mg/L, fill and lead up agent 0.7-0.9mL/L, open cylinder agent 3-6mL/L, brightener 0.2-0.3mL/L; Temperature 32-36 DEG C; Cathode-current density 2-5A/dm2, anodic current density 1.5-2.5A/dm2; Air stirring; Filter continuously; Plating bath time 14-16min;
(4) plating semi-bright nickel: nickel nickel sulfate (NiSO4��6H2O) 230-240g/L, Nickel dichloride. (NiCl2��6H2O) 55-65g/L, H3BO338-50g/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/dm2Inflating stirring, filters continuously; Plating bath time 20-30min;
(5) plating high-sulfur nickel: nickel sulfate (NiSO4��6H2O) 210-230g/L, Nickel dichloride. (NiCl2��6H2O) 45-55g/L, H3BO335-40g/L, wetting agent 1-5mL/L, temperature 30-40 DEG C, pH2.8-3.0, cathode-current density 3.5-3.7A/dm2; Mechanical agitation, filters continuously; Plating bath time 1.5-2min;
(6) Bright Nickel Electroplating: nickel sulfate (NiSO4��6H2O) 220-240g/L, Nickel dichloride. (NiCl2��6H2O) 42-44g/L, H3BO345-55g/L, key light agent 0.6-0.8mL/L, softening agent 6-8mL/L, adjuvant 5-7mL/L, wetting agent 1.0-1.2mL/L, temperature 48-52 DEG C, pH4.0-4.2, cathode-current density 4-6A/dm2, inflating stirring, filters continuously; Plating bath time 25-35min;
(7) electrodeposited chromium: chromic anhydride 270-290g/L, sulphuric acid (��=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/dm2; Plating bath time 2-5min.
CN201510979884.4A 2015-12-24 2015-12-24 Manufacturing method of tourist souvenir ornament Pending CN105624748A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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CN111300576A (en) * 2019-12-23 2020-06-19 郑州工程技术学院 Manufacturing method of tourist souvenir ornament
CN114657616A (en) * 2022-04-20 2022-06-24 阳江市鼎华晟新材料科技有限公司 Stainless steel copper plating process

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CN103480817A (en) * 2013-01-24 2014-01-01 贵州省冶金化工研究所 Manufacturing process of zinc alloy tourism craft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111300576A (en) * 2019-12-23 2020-06-19 郑州工程技术学院 Manufacturing method of tourist souvenir ornament
CN114657616A (en) * 2022-04-20 2022-06-24 阳江市鼎华晟新材料科技有限公司 Stainless steel copper plating process

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Application publication date: 20160601