CN103668198A - Three-element zinc-nickel iron soaking technique of aluminum alloy plate - Google Patents
Three-element zinc-nickel iron soaking technique of aluminum alloy plate Download PDFInfo
- Publication number
- CN103668198A CN103668198A CN201210330131.7A CN201210330131A CN103668198A CN 103668198 A CN103668198 A CN 103668198A CN 201210330131 A CN201210330131 A CN 201210330131A CN 103668198 A CN103668198 A CN 103668198A
- Authority
- CN
- China
- Prior art keywords
- nickel
- zinc
- water
- alloy plate
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
The invention relates to a three-element zinc-nickel iron soaking technique of an aluminum alloy plate, which is characterized by comprising the following steps: (1) preparing an alkali solution, an acid solution, a three-element zinc-nickel-iron soaking solution, a zinc removal solution, a nickel plating solution and a tin plating solution; (2) removing oil; (3) washing with water for the first time; (4) etching with the alkali solution; (5) washing with water for the second time; (6) washing with acid; (7) washing with water for the third time; (8) soaking in the three-element zinc-nickel-iron alloy for the first time; (9) removing zinc with nitric acid; (10) soaking in the three-element zinc-nickel-iron alloy for the second time; (11) carrying out nickel electroplating, wherein the current density of the nickel electroplating is 15-25 A/cm<2>, the temperature of the nickel plating solution is 50-90 DEG C, the pH value is 4-6, and the time is 2-5 seconds; and (12) carrying out tin electroplating, wherein the current density of the tin electroplating is 5-20 A/cm<2>, the temperature of the tin plating solution is 40-70 DEG C, the pH value is 3-5, and the time is 3-8 seconds. The technique ensures the favorable binding force between the electroplated coating and the aluminum alloy plate, and thus, has the advantages of no blisters, no shedding, no scale, low cost and low pollution.
Description
Technical field
The present invention relates to a kind of electroplating technology, specifically a kind of aluminium alloy plate soaks zinc-nickel iron process by ternary.
Background technology
Along with the fast development of electronic product, the big area of the more and more higher and LED lamp of chip integration, its heat dissipation problem bringing is on the rise.Because the solderability of aluminium is poor, at present normal employing method is first by carrying out electroless plating after aluminium flake impact briquetting or electroplating, to strengthen its weldability.The problem that this method exists binding force of cladding material poorly, time-consuming to take a lot of work, cost is high.
As weldable aluminum alloy sheets, also have plating process on direct employing aluminium, on aluminium, the key of plating process is to improve bonding force, removes the lip-deep oxide film of aluminium, and prevents that it from regenerating.Conventionally will be on aluminium base plating one deck with it in conjunction with firmly bottom or middle layer.
The combination of aluminium and underlying metal will meet the following conditions:
1. the complete surface of No oxided film and greasy dirt;
2. the underlying metal directly contacting with aluminium is more approaching with the lattice parameter of aluminium, and atomic radius is less;
3. if form alloy, there is higher solid solubility, be beneficial to the extension of coating on former settled layer.
At present, what as weldable aluminum alloy sheets, adopt plating process on aluminium is Ni plating on Al alloy technique, and this process using nickel, as solderable coating, exists the problem that binding force of cladding material is poor, cost is high, environmental pollution is serious.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and can guarantee that electrolytic coating and aluminium alloy plate can form the fine and close immersion plating layer of thin crystalline substance, bonding force is good, and cost is low, pollute few aluminium alloy plate soaks zinc-tin nickel technique by ternary.
According to technical scheme provided by the invention, a kind of aluminium alloy plate soaks zinc-nickel iron process by ternary, and feature is: comprise following processing step:
(1) preparation alkali lye, acid solution, ternary are soaked zinc-nickel-iron alloy liquid, dezincifying solution, nickel-plating liquid and tin plating electrolyte, stand-by;
The preparation of described alkali lye: sodium hydroxide 25～80g/L, sodium carbonate 25～70g/L, sodium phosphate 25～80g/L, Sodium Fluoride 2～25g/L, sodium lauryl sulphate 0.2～2g/L, all the other are water; Above-mentioned sodium hydroxide, sodium carbonate, sodium phosphate, Sodium Fluoride, sodium lauryl sulphate are hybridly prepared into alkali lye with water at normal temperatures;
The preparation of described acid solution: nitric acid 45～80g/L, sulfuric acid 15～35g/L, all the other are water; Above-mentioned nitric acid, sulfuric acid are hybridly prepared into acid solution with water at normal temperatures;
Described ternary is soaked the preparation of zinc-nickel-iron alloy liquid: sodium hydroxide 200～600g/L, zinc oxide 25～200g/L, nickelous chloride 6～30g/L, iron protochloride content are that 6～20g/L, Seignette salt 100～200g/L, sodium gluconate content are 80～150g/L, SODIUMNITRATE 5～20g/L, all the other are for water; Above-mentioned sodium hydroxide, zinc oxide, nickelous chloride, iron protochloride, Seignette salt, sodium gluconate, SODIUMNITRATE are hybridly prepared into ternary with water at normal temperatures and soak zinc-nickel-iron alloy liquid;
The preparation of described dezincifying solution: nitric acid 45～100g/L, sulfuric acid 10～90g/L, all the other are water; Above-mentioned nitric acid, sulfuric acid are hybridly prepared into dezincifying solution with water at normal temperatures;
The preparation of described nickel-plating liquid; Single nickel salt 300～500g/L, boric acid 50～80g/L, nickelous chloride 60～100g/L, sodium laurylsulfonate 0.1～3g/L, all the other are water; Above-mentioned single nickel salt, boric acid, nickelous chloride, sodium laurylsulfonate are hybridly prepared into nickel-plating liquid with water at normal temperatures.
The preparation of described tin plating electrolyte: tin protochloride 50～200g/L, sulfocarbolic acid 15～80g/L, ethoxylation-methyl naphthol sulfonic acid 6～30g/L, all the other are water; Above-mentioned tin protochloride, sulfocarbolic acid, ethoxylation-methyl naphthol sulfonic acid are hybridly prepared into tin plating electrolyte with water at normal temperatures.
(2) oil removing: by aluminium alloy plate concentration be 20～80g/L aluminium with processing in alkaline defatting agent solution, aluminium is 60～90 ℃ by the temperature of alkaline defatting agent solution, 20～55 seconds time;
(3) once washing: the aluminium alloy plate after oil removing is used to washed with de-ionized water at normal temperatures;
(4) alkali lye etching: the aluminium alloy plate after once washing is processed in alkali lye, and alkali liquid temperature is 70～90 ℃, 20～50 seconds time;
(5) secondary washing: the aluminium alloy plate after alkali lye etching is used to washed with de-ionized water at normal temperatures;
(6) pickling: the aluminium alloy plate after secondary washing is cleaned in acid solution, and acid liquor temperature is 40～70 ℃, 10～30 seconds time;
(7) three washings: the aluminium alloy plate through pickling is used to washed with de-ionized water at normal temperatures;
(8) soak for the first time ternary zinc-nickel-iron alloy: the aluminium alloy plate after three washings is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 35～70 ℃, 20～60 seconds time;
(9) nitric acid moves back zinc: will in dezincifying solution, process through the aluminium alloy plate soaking for the first time after ternary zinc-nickel-iron alloy is processed, the temperature of dezincifying solution is 50～75 ℃, 5～30 seconds time;
(10) soak for the second time ternary zinc-nickel-iron alloy: the aluminium alloy plate after nitric acid moves back zinc is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 55～90 ℃, 30～55 seconds time;
(11) electronickelling: the aluminium alloy plate through soaking for the second time after ternary zinc-nickel-iron alloy is processed is carried out to electronickelling, and the current density of electronickelling is 15～25A/cm
2, the temperature of nickel-plating liquid is 50～90 ℃, the pH value of nickel-plating liquid is 4～6,2～5 seconds time;
(12) eleetrotinplate: the aluminium alloy plate after Nickel Plating Treatment is carried out to eleetrotinplate, and the current density of eleetrotinplate is 5～20A/cm
2, the temperature of tin plating electrolyte is 40～70 ℃, the pH value of tin plating electrolyte is 3～5,3～8 seconds time.
The speed of a motor vehicle of described aluminium alloy plate is 2～40m/min.
The employing that oil removing of the present invention, alkali lye etching, nitric acid clean, soak ternary zinc-nickel-iron alloy for the first time, move back zinc alloy, soak ternary zinc-nickel-iron alloy, electronickelling, eleetrotinplate process section has for the second time guaranteed that electrolytic coating and aluminium alloy plate can form the fine and close immersion plating layer of thin crystalline substance, bonding force is good, thus non-foaming, without coming off, non-scale, cost is low, pollution is few.
Embodiment:
Below in conjunction with specific embodiment, the invention will be further described.
Aluminium used in the present invention adopts alkaline low-temperature aluminium alloy oil removing grease-removing agent with alkaline defatting agent.
Alkali lye etch step in the present invention can form the uneven surface of microcosmic injustice, to guarantee the bonding force of coating and matrix, after cleaning, peroxy-nitric acid can obtain altar mouth shape hole, these altar mouth shape holes play anchor effect to soaking zinc just, for obtaining the good subsequent plating layer of bonding force, have laid firm basis.After soaking for the second time ternary zinc-nickel-iron alloy, obtain fine and close zinc-nickel-iron alloy layer, can guarantee the electrolytic coating bonding force that it is follow-up.
Embodiment mono-: a kind of aluminium alloy plate soaks zinc-nickel iron process by ternary, comprises following processing step:
(1) preparation alkali lye, acid solution, ternary are soaked zinc-nickel-iron alloy liquid, dezincifying solution, nickel-plating liquid and tin plating electrolyte, stand-by;
The preparation of described alkali lye: sodium hydroxide 25g/L, sodium carbonate 2g//L, sodium phosphate 25g/L, Sodium Fluoride 2g/L, sodium lauryl sulphate 0.2g/L, all the other are water; Sodium hydroxide, sodium carbonate, sodium phosphate, Sodium Fluoride, sodium lauryl sulphate are hybridly prepared into alkali lye with water at normal temperatures;
The preparation of described acid solution: nitric acid 45g/L, sulfuric acid 15g/L, all the other are water; Nitric acid, sulfuric acid are hybridly prepared into acid solution with water at normal temperatures;
Described ternary is soaked the preparation of zinc-nickel-iron alloy liquid: sodium hydroxide 200g/L, zinc oxide 25g/L, nickelous chloride 6g/L, iron protochloride content are that 6g/L, Seignette salt 100g/L, sodium gluconate content are 80g/L, SODIUMNITRATE 5g/L, all the other are for water; Sodium hydroxide, zinc oxide, nickelous chloride, iron protochloride, Seignette salt, sodium gluconate, SODIUMNITRATE are hybridly prepared into ternary with water at normal temperatures and soak zinc-nickel-iron alloy liquid;
The preparation of described dezincifying solution: nitric acid 45g/L, sulfuric acid 10g/L, all the other are water; Nitric acid, sulfuric acid are hybridly prepared into dezincifying solution with water at normal temperatures;
The preparation of described nickel-plating liquid: single nickel salt 300g/L, boric acid 50g/L, nickelous chloride 60g/L, sodium laurylsulfonate 0.1g/L, all the other are water; Single nickel salt, boric acid, nickelous chloride, sodium laurylsulfonate are hybridly prepared into nickel-plating liquid with water at normal temperatures.
The preparation of described tin plating electrolyte: tin protochloride 50g/L, sulfocarbolic acid 15g/L, ethoxylation-methyl naphthol sulfonic acid 6g/L, all the other are water; Tin protochloride, sulfocarbolic acid, ethoxylation-methyl naphthol sulfonic acid are hybridly prepared into tin plating electrolyte with water at normal temperatures.
(2) oil removing: by aluminium alloy plate concentration be 20g/L aluminium with processing in alkaline defatting agent solution, aluminium is 60 ℃ by the temperature of alkaline defatting agent solution, 20 seconds time;
(3) once washing: the aluminium alloy plate after oil removing is used to washed with de-ionized water at normal temperatures;
(4) alkali lye etching: the aluminium alloy plate after once washing is processed in alkali lye, and alkali liquid temperature is 70 ℃, 20 seconds time;
(5) secondary washing: the aluminium alloy plate after alkali lye etching is used to washed with de-ionized water at normal temperatures;
(6) pickling: the aluminium alloy plate after secondary washing is cleaned in acid solution, and acid liquor temperature is 40 ℃, 10 seconds time;
(7) three washings: the aluminium alloy plate through pickling is used to washed with de-ionized water at normal temperatures;
(8) soak for the first time ternary zinc-nickel-iron alloy: the aluminium alloy plate after three washings is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 35 ℃, 20 seconds time;
(9) nitric acid moves back zinc: will in dezincifying solution, process through the aluminium alloy plate soaking for the first time after ternary zinc-nickel-iron alloy is processed, the temperature of dezincifying solution is 50 ℃, 5 seconds time;
(10) soak for the second time ternary zinc-nickel-iron alloy: the aluminium alloy plate after nitric acid moves back zinc is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 55 ℃, 30 seconds time;
(11) electronickelling: the aluminium alloy plate through soaking for the second time after ternary zinc-nickel-iron alloy is processed is carried out to electronickelling, and the current density of electronickelling is 15A/cm
2, the temperature of nickel-plating liquid is 50 ℃, the pH value of nickel-plating liquid is 4,2 seconds time;
(12) eleetrotinplate: the aluminium alloy plate after Nickel Plating Treatment is carried out to eleetrotinplate, and the current density of eleetrotinplate is 5A/cm
2, the temperature of tin plating electrolyte is 40 ℃, the pH value of tin plating electrolyte is 3,3 seconds time.
The speed of a motor vehicle of described aluminium alloy plate is 2m/min.
The weldable aluminum alloy sheets Deposit appearance that the present invention obtains is good, and bonding force is good, and adopting GB GB/T9286-1998 method to detect bonding force is 0 grade, and adopting SAT-5100 Weldability detector to test its wetting time is 0.9 second, and welding property is excellent.
Embodiment bis-: a kind of aluminium alloy plate soaks zinc-nickel iron process by ternary, comprise following processing step:
(1) preparation alkali lye, acid solution, ternary are soaked zinc-nickel-iron alloy liquid, dezincifying solution, nickel-plating liquid and tin plating electrolyte, stand-by;
The preparation of described alkali lye: sodium hydroxide 80g/L, sodium carbonate 70g/L, sodium phosphate 80g/L, Sodium Fluoride 25g/L, sodium lauryl sulphate 2g/L, all the other are water; Sodium hydroxide, sodium carbonate, sodium phosphate, Sodium Fluoride, sodium lauryl sulphate are hybridly prepared into alkali lye with water at normal temperatures;
The preparation of described acid solution: nitric acid 80g/L, sulfuric acid 35g/L, all the other are water; Nitric acid, sulfuric acid are hybridly prepared into acid solution with water at normal temperatures;
Described ternary is soaked the preparation of zinc-nickel-iron alloy liquid: sodium hydroxide 600g/L, zinc oxide 200g/L, nickelous chloride 30g/L, iron protochloride content are that 20g/L, Seignette salt 200g/L, sodium gluconate content are 150g/L, SODIUMNITRATE 20g/L, all the other are for water; Sodium hydroxide, zinc oxide, nickelous chloride, iron protochloride, Seignette salt, sodium gluconate, SODIUMNITRATE are hybridly prepared into ternary with water at normal temperatures and soak zinc-nickel-iron alloy liquid;
The preparation of described dezincifying solution: nitric acid 100g/L, sulfuric acid 90g/L, all the other are water; Nitric acid, sulfuric acid are hybridly prepared into dezincifying solution with water at normal temperatures;
The preparation of described nickel-plating liquid: single nickel salt 500g/L, boric acid 80g/L, nickelous chloride 100g/L, sodium laurylsulfonate 3g/L, all the other are water; Single nickel salt, boric acid, nickelous chloride, sodium laurylsulfonate are hybridly prepared into nickel-plating liquid with water at normal temperatures.
The preparation of described tin plating electrolyte: tin protochloride 200g/L, sulfocarbolic acid 80g/L, ethoxylation-methyl naphthol sulfonic acid 30g/L, all the other are water; Tin protochloride, sulfocarbolic acid, ethoxylation-methyl naphthol sulfonic acid are hybridly prepared into tin plating electrolyte with water at normal temperatures.
(2) oil removing: by aluminium alloy plate concentration be 80g/L aluminium with processing in alkaline defatting agent solution, aluminium is 90 ℃ by the temperature of alkaline defatting agent solution, 55 seconds time;
(3) once washing: the aluminium alloy plate after oil removing is used to washed with de-ionized water at normal temperatures;
(4) alkali lye etching: the aluminium alloy plate after once washing is processed in alkali lye, and alkali liquid temperature is 90 ℃, 50 seconds time;
(5) secondary washing: the aluminium alloy plate after alkali lye etching is used to washed with de-ionized water at normal temperatures;
(6) pickling; Aluminium alloy plate after secondary washing is cleaned in acid solution, and acid liquor temperature is 70 ℃, 30 seconds time;
(7) three washings: the aluminium alloy plate through pickling is used to washed with de-ionized water at normal temperatures;
(8) soak for the first time ternary zinc-nickel-iron alloy: the aluminium alloy plate after three washings is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 70 ℃, 60 seconds time;
(9) nitric acid moves back zinc: will in dezincifying solution, process through the aluminium alloy plate soaking for the first time after ternary zinc-nickel-iron alloy is processed, the temperature of dezincifying solution is 75 ℃, 30 seconds time;
(10) soak for the second time ternary zinc-nickel-iron alloy: the aluminium alloy plate after nitric acid moves back zinc is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 90 ℃, 55 seconds time;
(11) electronickelling: the aluminium alloy plate through soaking for the second time after ternary zinc-nickel-iron alloy is processed is carried out to electronickelling, and the current density of electronickelling is 25A/cm
2, the temperature of nickel-plating liquid is 90 ℃, the pH value of nickel-plating liquid is 6,5 seconds time;
(12) eleetrotinplate: the aluminium alloy plate after Nickel Plating Treatment is carried out to eleetrotinplate, and the current density of eleetrotinplate is 20A/cm
2, the temperature of tin plating electrolyte is 70 ℃, the pH value of tin plating electrolyte is 5,8 seconds time.
The speed of a motor vehicle of described aluminium alloy plate is 40m/min.
The weldable aluminum alloy sheets Deposit appearance that the present invention obtains is good, and bonding force is good, and adopting GB GB/T9286-1998 method to detect bonding force is 0 grade, and adopting SAT-5100 Weldability detector to test its wetting time is 1.1 seconds, and welding property is excellent.
Embodiment tri-: a kind of aluminium alloy plate soaks zinc-nickel iron process by ternary, comprise following processing step:
(1) preparation alkali lye, acid solution, ternary are soaked zinc-nickel-iron alloy liquid, dezincifying solution, nickel-plating liquid and tin plating electrolyte, stand-by;
The preparation of described alkali lye: sodium hydroxide 50g/L, sodium carbonate 45g/L, sodium phosphate 55g/L, Sodium Fluoride 12g/L, sodium lauryl sulphate 1g/L, all the other are water; Sodium hydroxide, sodium carbonate, sodium phosphate, Sodium Fluoride, sodium lauryl sulphate are hybridly prepared into alkali lye with water at normal temperatures;
The preparation of described acid solution: nitric acid 60g/L, sulfuric acid 25g/L, all the other are water; Nitric acid, sulfuric acid are hybridly prepared into acid solution with water at normal temperatures;
Described ternary is soaked the preparation of zinc-nickel-iron alloy liquid: sodium hydroxide 400g/L, zinc oxide 120g/L, nickelous chloride 18g/L, iron protochloride content are that 13g/L, Seignette salt 150g/L, sodium gluconate content are 125g/L, SODIUMNITRATE 13g/L, all the other are for water; Sodium hydroxide, zinc oxide, nickelous chloride, iron protochloride, Seignette salt, sodium gluconate, SODIUMNITRATE are hybridly prepared into ternary with water at normal temperatures and soak zinc-nickel-iron alloy liquid;
The preparation of described dezincifying solution: nitric acid 75g/L, sulfuric acid 50g/L, all the other are water; Nitric acid, sulfuric acid are hybridly prepared into dezincifying solution with water at normal temperatures;
The preparation of described nickel-plating liquid: single nickel salt 400g/L, boric acid 60g/L, nickelous chloride 80g/L, sodium laurylsulfonate 2g/L, all the other are water; Single nickel salt, boric acid, nickelous chloride, sodium laurylsulfonate are hybridly prepared into nickel-plating liquid with water at normal temperatures.
The preparation of described tin plating electrolyte: tin protochloride 125g/L, sulfocarbolic acid 40g/L, ethoxylation-methyl naphthol sulfonic acid 18g/L, all the other are water; Tin protochloride, sulfocarbolic acid, ethoxylation-methyl naphthol sulfonic acid are hybridly prepared into tin plating electrolyte with water at normal temperatures.
(2) oil removing: by aluminium alloy plate concentration be 50g/L aluminium with processing in alkaline defatting agent solution, aluminium is 80 ℃ by the temperature of alkaline defatting agent solution, 40 seconds time;
(3) once washing: the aluminium alloy plate after oil removing is used to washed with de-ionized water at normal temperatures;
(4) alkali lye etching: the aluminium alloy plate after once washing is processed in alkali lye, and alkali liquid temperature is 80 ℃, 30 seconds time;
(5) secondary washing: the aluminium alloy plate after alkali lye etching is used to washed with de-ionized water at normal temperatures;
(6) pickling: the aluminium alloy plate after secondary washing is cleaned in acid solution, and acid liquor temperature is 60 ℃, 20 seconds time;
(7) three washings: the aluminium alloy plate through pickling is used to washed with de-ionized water at normal temperatures;
(8) soak for the first time ternary zinc-nickel-iron alloy: the aluminium alloy plate after three washings is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 50 ℃, 40 seconds time;
(9) nitric acid moves back zinc: will in dezincifying solution, process through the aluminium alloy plate soaking for the first time after ternary zinc-nickel-iron alloy is processed, the temperature of dezincifying solution is 65 ℃, 20 seconds time;
(10) soak for the second time ternary zinc-nickel-iron alloy: the aluminium alloy plate after nitric acid moves back zinc is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 70 ℃, 45 seconds time;
(11) electronickelling: the aluminium alloy plate through soaking for the second time after ternary zinc-nickel-iron alloy is processed is carried out to electronickelling, and the current density of electronickelling is 20A/cm
2, the temperature of nickel-plating liquid is 70 ℃, the pH value of nickel-plating liquid is 5,3 seconds time;
(12) eleetrotinplate: the aluminium alloy plate after Nickel Plating Treatment is carried out to eleetrotinplate, and the current density of eleetrotinplate is 12A/cm
2, the temperature of tin plating electrolyte is 55 ℃, the pH value of tin plating electrolyte is 4,5 seconds time.
The speed of a motor vehicle of described aluminium alloy plate is 21m/min.
The weldable aluminum alloy sheets Deposit appearance that the present invention obtains is good, and bonding force is good, and adopting GB GB/T9286-1998 method to detect bonding force is 0 grade, and adopting SAT-5100 Weldability detector to test its wetting time is 1.2 seconds, and welding property is excellent.
Claims (2)
1. aluminium alloy plate soaks a zinc-nickel iron process by ternary, and feature is: comprise following processing step:
(1) preparation alkali lye, acid solution, ternary are soaked zinc-nickel-iron alloy liquid, dezincifying solution, nickel-plating liquid and tin plating electrolyte, stand-by;
The preparation of described alkali lye: sodium hydroxide 25～80g/L, sodium carbonate 25～70g/L, sodium phosphate 25～80g/L, Sodium Fluoride 2～25g/L, sodium lauryl sulphate 0.2～2g/L, all the other are water; Above-mentioned sodium hydroxide, sodium carbonate, sodium phosphate, Sodium Fluoride, sodium lauryl sulphate are hybridly prepared into alkali lye with water at normal temperatures;
The preparation of described acid solution: nitric acid 45～80g/L, sulfuric acid 15～35g/L, all the other are water; Above-mentioned nitric acid, sulfuric acid are hybridly prepared into acid solution with water at normal temperatures;
Described ternary is soaked the preparation of zinc-nickel-iron alloy liquid: sodium hydroxide 200～600g/L, zinc oxide 25～200g/L, nickelous chloride 6～30g/L, iron protochloride content are that 6～20g/L, Seignette salt 100～200g/L, sodium gluconate content are 80～150g/L, SODIUMNITRATE 5～20g/L, all the other are for water; Above-mentioned sodium hydroxide, zinc oxide, nickelous chloride, iron protochloride, Seignette salt, sodium gluconate, SODIUMNITRATE are hybridly prepared into ternary with water at normal temperatures and soak zinc-nickel-iron alloy liquid;
The preparation of described dezincifying solution: nitric acid 45～100g/L, sulfuric acid 10～90g/L, all the other are water; Above-mentioned nitric acid, sulfuric acid are hybridly prepared into dezincifying solution with water at normal temperatures;
The preparation of described nickel-plating liquid: single nickel salt 300～500g/L, boric acid 50～80g/L, nickelous chloride 60～100g/L, sodium laurylsulfonate 0.1～3g/L, all the other are water; Above-mentioned single nickel salt, boric acid, nickelous chloride, sodium laurylsulfonate are hybridly prepared into nickel-plating liquid with water at normal temperatures.
The preparation of described tin plating electrolyte: tin protochloride 50～200g/L, sulfocarbolic acid 15～80g/L, ethoxylation-methyl naphthol sulfonic acid 6～30g/L, all the other are water; Above-mentioned tin protochloride, sulfocarbolic acid, ethoxylation-methyl naphthol sulfonic acid are hybridly prepared into tin plating electrolyte with water at normal temperatures.
(2) oil removing: by aluminium alloy plate concentration be 20～80g/L aluminium with processing in alkaline defatting agent solution, aluminium is 60～90 ℃ by the temperature of alkaline defatting agent solution, 20～55 seconds time;
(3) once washing: the aluminium alloy plate after oil removing is used to washed with de-ionized water at normal temperatures;
(4) alkali lye etching: the aluminium alloy plate after once washing is processed in alkali lye, and alkali liquid temperature is 70～90 ℃, 20～50 seconds time;
(5) secondary washing: the aluminium alloy plate after alkali lye etching is used to washed with de-ionized water at normal temperatures;
(6) pickling: the aluminium alloy plate after secondary washing is cleaned in acid solution, and acid liquor temperature is 40～70 ℃, 10～30 seconds time;
(7) three washings: the aluminium alloy plate through pickling is used to washed with de-ionized water at normal temperatures;
(8) soak for the first time ternary zinc-nickel-iron alloy: the aluminium alloy plate after three washings is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 35～70 ℃, 20～60 seconds time;
(9) nitric acid moves back zinc: will in dezincifying solution, process through the aluminium alloy plate soaking for the first time after ternary zinc-nickel-iron alloy is processed, the temperature of dezincifying solution is 50～75 ℃, 5～30 seconds time;
(10) soak for the second time ternary zinc-nickel-iron alloy: the aluminium alloy plate after nitric acid moves back zinc is processed in ternary zinc-nickel-iron alloy liquid, and the temperature of ternary zinc-nickel-iron alloy liquid is 55～90 ℃, 30～55 seconds time;
(11) electronickelling: the aluminium alloy plate through soaking for the second time after ternary zinc-nickel-iron alloy is processed is carried out to electronickelling, and the current density of electronickelling is 15～25A/cm
2, the temperature of nickel-plating liquid is 50～90 ℃, the pH value of nickel-plating liquid is 4～6,2～5 seconds time;
(12) eleetrotinplate: the aluminium alloy plate after Nickel Plating Treatment is carried out to eleetrotinplate, and the current density of eleetrotinplate is 5～20A/cm
2, the temperature of tin plating electrolyte is 40～70 ℃, the pH value of tin plating electrolyte is 3～5,3～8 seconds time.
2. a kind of aluminium alloy plate according to claim 1 soaks zinc-nickel iron process by ternary, it is characterized in that: the speed of a motor vehicle of described aluminium alloy plate is 2～40m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210330131.7A CN103668198A (en) | 2012-09-01 | 2012-09-01 | Three-element zinc-nickel iron soaking technique of aluminum alloy plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210330131.7A CN103668198A (en) | 2012-09-01 | 2012-09-01 | Three-element zinc-nickel iron soaking technique of aluminum alloy plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103668198A true CN103668198A (en) | 2014-03-26 |
Family
ID=50306954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210330131.7A Pending CN103668198A (en) | 2012-09-01 | 2012-09-01 | Three-element zinc-nickel iron soaking technique of aluminum alloy plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103668198A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274545A (en) * | 2015-11-25 | 2016-01-27 | 天津航空机电有限公司 | Electroplating or chemical-plating pretreatment method of aluminum alloy and application of electroplating or chemical-plating pretreatment method |
| CN110129779A (en) * | 2019-06-12 | 2019-08-16 | 合肥工业大学 | A kind of method of the electroless plated iron of aluminum alloy surface |
| CN110965087A (en) * | 2019-12-25 | 2020-04-07 | 上海应用技术大学 | Cyanide-free zinc dipping solution and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4537837A (en) * | 1983-03-16 | 1985-08-27 | Gunn Walter H | Corrosion resistant metal composite with metallic undercoat and chromium topcoat |
| US5234574A (en) * | 1991-01-30 | 1993-08-10 | Sumitomo Metal Industries, Ltd. | Process for direct zinc electroplating of aluminum strip |
| CN1425798A (en) * | 2002-12-31 | 2003-06-25 | 中国航天科技集团公司第九研究院七七一研究所 | Activation solution for aluminium alloy before chemical nickel plating |
| CN102071446A (en) * | 2011-03-01 | 2011-05-25 | 无锡新大中薄板有限公司 | Continuous electroplating process for weldable aluminum coiled material |
-
2012
- 2012-09-01 CN CN201210330131.7A patent/CN103668198A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4537837A (en) * | 1983-03-16 | 1985-08-27 | Gunn Walter H | Corrosion resistant metal composite with metallic undercoat and chromium topcoat |
| US5234574A (en) * | 1991-01-30 | 1993-08-10 | Sumitomo Metal Industries, Ltd. | Process for direct zinc electroplating of aluminum strip |
| CN1425798A (en) * | 2002-12-31 | 2003-06-25 | 中国航天科技集团公司第九研究院七七一研究所 | Activation solution for aluminium alloy before chemical nickel plating |
| CN102071446A (en) * | 2011-03-01 | 2011-05-25 | 无锡新大中薄板有限公司 | Continuous electroplating process for weldable aluminum coiled material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274545A (en) * | 2015-11-25 | 2016-01-27 | 天津航空机电有限公司 | Electroplating or chemical-plating pretreatment method of aluminum alloy and application of electroplating or chemical-plating pretreatment method |
| CN110129779A (en) * | 2019-06-12 | 2019-08-16 | 合肥工业大学 | A kind of method of the electroless plated iron of aluminum alloy surface |
| CN110129779B (en) * | 2019-06-12 | 2021-06-18 | 合肥工业大学 | Method for chemically dipping iron on surface of aluminum alloy |
| CN110965087A (en) * | 2019-12-25 | 2020-04-07 | 上海应用技术大学 | Cyanide-free zinc dipping solution and preparation method and application thereof |
| CN110965087B (en) * | 2019-12-25 | 2021-09-28 | 上海应用技术大学 | Cyanide-free zinc dipping solution and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102071446B (en) | Continuous electroplating process for weldable aluminum coiled material | |
| JP6466837B2 (en) | Plating material manufacturing method and plating material | |
| CN104233420A (en) | Method for directly electroplating high-binding-force nickel layer on surface of aluminum or aluminum alloy | |
| CN102345145A (en) | Method for electroplating surface of molybdenum and copper alloy | |
| CN101418450A (en) | Copper plating process of aluminum wire material | |
| CN102605400A (en) | Steel strip continuous copper plating process | |
| CN101864584A (en) | Plating solution for tumble-plating and tumble-plating method of steel battery shell | |
| CN109208050B (en) | Surface treatment method for improving corrosion resistance of electrolytic copper foil | |
| CN105088289B (en) | The plating of aluminum base edge coppersmith part and strip method | |
| CN103668198A (en) | Three-element zinc-nickel iron soaking technique of aluminum alloy plate | |
| CN104120470A (en) | Cyanide-free monovalent copper presoaking method of steel and iron parts and zinc alloy die castings | |
| CN103668193A (en) | Four-element zinc-tin-nickel-iron electroplating technique of aluminum alloy plate | |
| CN103668192A (en) | Four-element zinc-tin-nickel-iron soaking technique of aluminum alloy plate | |
| CN105063703A (en) | Surface treatment method of die casting aluminum alloy piece and die casting aluminum alloy product | |
| CN102965697B (en) | Electroplating process for flexible nickel | |
| CN101451258A (en) | Aluminum coiled material short process continuous nickel plating and alloy process thereof | |
| CN103668197A (en) | Two-element zinc-iron soaking technique of aluminum alloy plate | |
| CN103668194A (en) | Two-element zinc-nickel soaking iron electroplating technique of aluminum alloy plate | |
| CN103668195A (en) | Three-element zinc-tin-nickel soaking iron electroplating technique of aluminum alloy plate | |
| CN103668196A (en) | Continuous iron electroplating technique of weldable aluminum plate | |
| CN104419952A (en) | Method for copper electroplating, nickel chemical plating and nickel electroplating on the surface of magnesium alloy | |
| CN107236977A (en) | A kind of electroplating pretreatment process optimization method | |
| CN105386100A (en) | Method for electroplating copper and sliver on iron-nickel alloy frame | |
| CN202766619U (en) | Dedicated device for producing weldability aluminum plate by binary dip zinc-iron process | |
| CN202717859U (en) | Device special for producing weldable aluminum plates with quaternary zinc tin nickel iron immersion process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |