CN105562636A - Preparation method for crystallizer copper plate coated with nickel-cobalt-iron alloy layer - Google Patents

Preparation method for crystallizer copper plate coated with nickel-cobalt-iron alloy layer Download PDF

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CN105562636A
CN105562636A CN201511015713.6A CN201511015713A CN105562636A CN 105562636 A CN105562636 A CN 105562636A CN 201511015713 A CN201511015713 A CN 201511015713A CN 105562636 A CN105562636 A CN 105562636A
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crystallizer
sulfate
copper plate
preparation
nickel
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CN105562636B (en
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张颖
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Guangxi Shengchang Logistics Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/057Manufacturing or calibrating the moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/059Mould materials or platings
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C9/00Alloys based on copper
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/56Electroplating: Baths therefor from solutions of alloys
    • C25D3/562Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

The invention discloses a preparation method for a crystallizer copper plate coated with a nickel-cobalt-iron alloy layer. The crystallizer copper plate is composed of, by mass, 1%-2% of Ni, 0.05%-0.2% of Be, 0.5%-0.7% of Al, 3.0%-5.0% of Zr, 1.2%-1.4% of Mn, 1%-3% of Mg, 0.8%-1.2% of Cr, 14.0%-16.0% of Zn and the balance Cu. The preparation method comprises the steps that a crystallizer is prepared from copper alloy comprising the components, and a coated layer is electroplated on the surface of the crystallizer. A plating solution adopted by electroplating is composed of 220-240 g/l of nickel sulfate, 17-19 g/l of nickel chloride, 4.5-5.5 g/l of cobalt sulfate, 7.5-8.5 g/l of ferric sulfate, 23-27 g/l of boric acid, 5-7 g/l of potassium sulfate, 30-40 g/l of sodium chloride, 0.2-0.4 g/l of lauryl sodium sulfate and 20-22 ml/L of an additive, and the additive is a solution prepared by adding 10-12 g of sodium gluconate, 33-37 g of ascorbic acid and 22-26 g of dextrin into one liter of water. The conditions for an electroplating process are as follows, the PH value is 2.3-3.5, the electric current density is 3.8-4.2 A/dm<2>, the temperature is 44 DEG C-46 DEG C, and electroplating is conducted till the plating layer thickness reaches 1.3-1.5 mm.

Description

A kind of plating has the preparation method of the copper plate of crystallizer of permivar layer
Technical field
The present invention relates to electroplating technology field, particularly relate to the preparation method that a kind of plating has the copper plate of crystallizer of permivar layer.
Background technology
Copper plate of crystallizer is conticaster vitals, and molten steel flows through conticaster crystallizer and forms steel billet through supercooling.In continuous casting throwing production process, steel billet and copper coin surface contact with each other to produce and rub, copper coin surface produces wearing and tearing, usual employing functional electric coating technology, at the good material wear-resisting again of its coating surface one deck heat conductivility, alleviates copper coin surface abrasion to reach, improves the object that copper coin repairs number of times, extends copper coin service life.With Development of Continuous Casting Technique, copper plate electroplating technology is fast-developing: coating material is developed to alloy material by elemental metals, by chromium to nickel to ferronickel, nickel cobalt (alloy) develops, plating form is developed to individual layer by composite bed, this functional plating is different from Common platings, coating is thicker, usual thickness 0.2mm-2mm, unavoidably bring coating internal stress to accumulate larger problem, copper coin is in continuous casting is produced, coating working face is in high-temperature molten steel and cooling water environment, cold and heat succeed each other frequent, induction coating cracks, sometimes there is obscission in coating, affect copper coin throwing steel transportation amount, affect conticaster production efficiency.And electroplating work procedure is many, the production cycle is long.
Notification number is that the application for a patent for invention " method of electroformed nickel-cobalt alloy " of CN1239752C discloses a kind of electroplating technology, and its electroplate liquid is by NiSO 47H 2o, NiCl 26H 2o, FeSO 47H 2o, CoSO 47H 2o, NaCl, H 3bO 3, C 12h 25sO 4na, additive are formulated by a certain percentage, and this patent application efficiently solves the problem of coating and basal body binding force difference, improve the service life of copper plate of crystallizer.
Summary of the invention
The object of the invention is to propose the preparation method that a kind of plating has the copper plate of crystallizer of permivar layer, the component of the method to copper plate of crystallizer adjusts, make intensity higher, heat conductivility is better, and by the adjustment to solution composition, make that the adhesion of coating and matrix is good, stress is little, extend the service life of crystallizer.
For reaching this object, the present invention by the following technical solutions:
Plating has a preparation method for the copper plate of crystallizer of permivar layer, and the composition of described copper plate of crystallizer is by mass percentage: Ni:1-2%, Be:0.05-0.2%, Al:0.5-0.7%, Zr:3.0-5.0%, Mn:1.2-1.4%, Mg:1-3%, Cr:0.8-1.2%, Zn:14.0-16.0%, all the other are Cu, described preparation method comprises and adopts the copper alloy with mentioned component to prepare crystallizer, and at the electroplating surface coating layer of crystallizer, consisting of of the plating solution that described plating adopts: nickelous sulfate 220-240g/l, nickel chloride 17-19g/l, cobaltous sulfate 4.5-5.5g/l, ferric sulfate 7.5-8.5g/l, boric acid 23-27g/l, potassium sulfate 5-7g/l, sodium chloride 30-40g/l, lauryl sodium sulfate 0.2-0.4g/l, additive 20-22ml/L, wherein be added to and adopt 10-12g gluconic acid sodium salt, 33-37g ascorbic acid and 22-26g dextrin add the solution prepared in 11 water, electroplating technical conditions is: pH value 2.3-3.5, current density 3.8-4.2A/dm 2, temperature 44-46 DEG C, is electroplated to thickness of coating for till about 1.3-1.5mm.
The present invention has following beneficial effect:
1) composition of the present invention to roll surface copper alloy adjusts, and based on the brass adding zinc, adds Ni, Be, Al, Zr, Mn, Mg, the elements such as Cr play the interactional advantage of alloying element, and obtain the copper alloy material of high strength and high-termal conductivity, HBS is greater than 245; Softening temperature is greater than 580 DEG C.
2) for the adjustment of base material copper alloy composition, plating solution composition when electroplating continuous cast mold roll surface improves, and changes pure nickel and electroplates as nickel ferro-cobalt combines plating, to improve the decay resistance of coating; Adopt the main salt of sulfate bath and additive system, sulfate bath system is little compared to the disposable input cost of the systems such as sulfamate; Additive gluconic acid sodium salt, ascorbic acid and dextrin can make coating compression increase, and by adding additive, reduce coating internal stress, and additive has the effect of raising coating leveling ability simultaneously, also have and improve coating brightness, the effect of raising ductility of electrodeposited film; By regulating molysite, cobalt salt and nickel salt content in plating solution, control nickel, cobalt, iron content in coating, in continuous casting throwing is produced, nickel ferro-cobalt coating hot tearing quantity reduces, and the coating probability that comes off reduces.Make coating have good thermal fatigue resistance while acquisition corrosion resistance simultaneously, and lower thermal stress, wearability improves simultaneously.Solution composition is coordinated with the phase-splitting that becomes of copper alloy.
3) coating after testing, adopting plating solution of the present invention to obtain has following performance: coating hardness is 260-280Hv; The internal stress of coating is only 38-43N/mm 2.The matrix being coated with coating of the present invention is carried out thermal fatigue test, 5 minutes are incubated at 600 DEG C of temperature, then the quenching-in water of room temperature is being in, 5 minutes are incubated again at 600 DEG C of temperature, repeat this type of insulation and quenching test 500 times, found that, coating and matrix in conjunction with intact, coating surface flawless, peel off, the defect such as bubbling.Adopt the crystallizer continuous casting being coated with coating of the present invention, after direct casting 43 heat, coating is intact.Test according to GB6461-2002 salt fog judgment criteria, coating of the present invention far away higher than the resisting salt fog corrosion time that standard specifies, therefore, the excellent anti-corrosion performance of coating of the present invention.
Detailed description of the invention
Embodiment one
Plating has a preparation method for the copper plate of crystallizer of permivar layer, and the composition of described copper plate of crystallizer is by mass percentage: Ni:1%, Be:0.2%, Al:0.5%, Zr:5.0%, Mn:1.2%, Mg:3%, Cr:0.8%, Zn:16.0%, all the other are Cu, , described preparation method comprises and adopts the copper alloy with mentioned component to prepare crystallizer, and at the electroplating surface coating layer of crystallizer, consisting of of the plating solution that described plating adopts: nickelous sulfate 220g/l, nickel chloride 19g/l, cobaltous sulfate 4.5g/l, ferric sulfate 8.5g/l, boric acid 27g/l, potassium sulfate 5g/l, sodium chloride 40g/l, lauryl sodium sulfate 0.2g/l, additive 22ml/L, wherein be added to and adopt 10g gluconic acid sodium salt, 37g ascorbic acid and 22g dextrin add the solution prepared in 11 water, described process conditions are: pH value 2.3-3.5, current density 3.8A/dm 2, temperature 44-46 DEG C, is electroplated to till thickness of coating is 1.3mm.
Embodiment two
Plating has a preparation method for the copper plate of crystallizer of permivar layer, and the composition of described copper plate of crystallizer is by mass percentage: Ni:2%, Be:0.05%, Al:0.7%, Zr:3.0%, Mn:1.4%, Mg:1%, Cr:1.2%, Zn:14.0%, all the other are Cu, described preparation method comprises and adopts the copper alloy with mentioned component to prepare crystallizer, and at the electroplating surface coating layer of crystallizer, consisting of of the plating solution that described plating adopts: nickelous sulfate 240g/l, nickel chloride 17g/l, cobaltous sulfate 5.5g/l, ferric sulfate 7.5g/l, boric acid 23g/l, potassium sulfate 7g/l, sodium chloride 30g/l, lauryl sodium sulfate 0.4g/l, additive 20ml/L, wherein be added to and adopt 12g gluconic acid sodium salt, 33g ascorbic acid and 26g dextrin add the solution prepared in 11 water, described process conditions are: pH value 2.3-3.5, current density 4.2A/dm 2, temperature 44-46 DEG C, is electroplated to till thickness of coating is 1.5mm.
Embodiment three
Plating has a preparation method for the copper plate of crystallizer of permivar layer, and the composition of described copper plate of crystallizer is by mass percentage: Ni:1.5%; Be:0.12%; Al:0.6%, Zr:4.0%; Mn:1.3%; Mg:2.0%; Cr:1.0%; Zn:15.0%; All the other are Cu; Described preparation method comprises and adopts the copper alloy with mentioned component to prepare crystallizer, and at the electroplating surface coating layer of crystallizer, consisting of of the plating solution that described plating adopts: nickelous sulfate 230g/l, nickel chloride 18g/l, cobaltous sulfate 5.0g/l, ferric sulfate 8.0g/l, boric acid 24g/l, potassium sulfate 6g/l, sodium chloride 35g/l, lauryl sodium sulfate 0.3g/l, additive 21ml/L, be wherein added to and adopt 11g gluconic acid sodium salt, 34g ascorbic acid and 24g dextrin add the solution prepared in 11 water, described process conditions are: pH value 2.3-3.5, current density 4A/dm 2, temperature 44-46 DEG C, is electroplated to till thickness of coating is 1.4mm.
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 auxiliary element, 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. plating has a preparation method for the copper plate of crystallizer of permivar layer, it is characterized in that, the composition of described copper plate of crystallizer is by mass percentage: Ni:1-2%, Be:0.05-0.2%, Al:0.5-0.7%, Zr:3.0-5.0%, Mn:1.2-1.4%, Mg:1-3%, Cr:0.8-1.2%, Zn:14.0-16.0%, all the other are Cu, described preparation method comprises and adopts the copper alloy with mentioned component to prepare crystallizer, and at the electroplating surface coating layer of crystallizer, consisting of of the plating solution that described plating adopts: nickelous sulfate 220-240g/l, nickel chloride 17-19g/l, cobaltous sulfate 4.5-5.5g/l, ferric sulfate 7.5-8.5g/l, boric acid 23-27g/l, potassium sulfate 5-7g/l, sodium chloride 30-40g/l, lauryl sodium sulfate 0.2-0.4g/l, additive 20-22ml/L, wherein be added to and adopt 10-12g gluconic acid sodium salt, 33-37g ascorbic acid and 22-26g dextrin add the solution prepared in 11 water, electroplating technical conditions is: pH value 2.3-3.5, current density 3.8-4.2A/dm 2, temperature is about 44-46 DEG C, is electroplated to thickness of coating for till about 1.3-1.5mm.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106637936A (en) * 2016-12-26 2017-05-10 浙江大学 Graphene-iron composite fiber and preparation method thereof
CN108642547A (en) * 2018-05-28 2018-10-12 西南石油大学 A kind of method that electro-deposition prepares graphene-Ni-Fe-Co alloy layers

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149345A (en) * 1986-12-15 1988-06-22 Nippon Mining Co Ltd High strength copper alloy having high electrical conductivity and improved heat resistance
CN101116900A (en) * 2007-09-04 2008-02-06 广州市锐优表面科技有限公司 Method for preparing strengthened coatings on the continuance casting crystallizer surface
CN101524746A (en) * 2009-04-03 2009-09-09 鞍山金维表面工程技术有限公司 Technological method for repairing continuous caster crystallizer copperplate by coating WC alloy
CN101724873A (en) * 2008-10-31 2010-06-09 鞍钢重型机械有限责任公司 Functional electroplating process of copperplates of crystallizers
CN102039384A (en) * 2009-10-23 2011-05-04 宝山钢铁股份有限公司 Composite coating layer on surface of high-resistant crystallizer or crystallizing roller and manufacturing method thereof
CN103069025A (en) * 2010-08-27 2013-04-24 古河电气工业株式会社 Copper alloy sheet and manufacturing method for same
CN103614751A (en) * 2013-11-22 2014-03-05 西峡龙成特种材料有限公司 Copper-plate nickel-manganese-alloy electroplated layer of continuous-casting crystallizer and preparation process thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149345A (en) * 1986-12-15 1988-06-22 Nippon Mining Co Ltd High strength copper alloy having high electrical conductivity and improved heat resistance
CN101116900A (en) * 2007-09-04 2008-02-06 广州市锐优表面科技有限公司 Method for preparing strengthened coatings on the continuance casting crystallizer surface
CN101724873A (en) * 2008-10-31 2010-06-09 鞍钢重型机械有限责任公司 Functional electroplating process of copperplates of crystallizers
CN101524746A (en) * 2009-04-03 2009-09-09 鞍山金维表面工程技术有限公司 Technological method for repairing continuous caster crystallizer copperplate by coating WC alloy
CN102039384A (en) * 2009-10-23 2011-05-04 宝山钢铁股份有限公司 Composite coating layer on surface of high-resistant crystallizer or crystallizing roller and manufacturing method thereof
CN103069025A (en) * 2010-08-27 2013-04-24 古河电气工业株式会社 Copper alloy sheet and manufacturing method for same
CN103614751A (en) * 2013-11-22 2014-03-05 西峡龙成特种材料有限公司 Copper-plate nickel-manganese-alloy electroplated layer of continuous-casting crystallizer and preparation process thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106637936A (en) * 2016-12-26 2017-05-10 浙江大学 Graphene-iron composite fiber and preparation method thereof
CN106637936B (en) * 2016-12-26 2019-04-30 浙江大学 A kind of graphene-iron composite fibre and preparation method thereof
CN108642547A (en) * 2018-05-28 2018-10-12 西南石油大学 A kind of method that electro-deposition prepares graphene-Ni-Fe-Co alloy layers

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