CN103806022A - Electroplating solution for electroplating decorative trivalent chromium on surface of electronic product - Google Patents

Electroplating solution for electroplating decorative trivalent chromium on surface of electronic product Download PDF

Info

Publication number
CN103806022A
CN103806022A CN201210451052.1A CN201210451052A CN103806022A CN 103806022 A CN103806022 A CN 103806022A CN 201210451052 A CN201210451052 A CN 201210451052A CN 103806022 A CN103806022 A CN 103806022A
Authority
CN
China
Prior art keywords
electroplating
plating solution
electronic
chloride
sodium
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
Application number
CN201210451052.1A
Other languages
Chinese (zh)
Inventor
刘茂见
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI SANZHOU COLD ROLLED SILICON STEEL CO Ltd
Original Assignee
WUXI SANZHOU COLD ROLLED SILICON STEEL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUXI SANZHOU COLD ROLLED SILICON STEEL CO Ltd filed Critical WUXI SANZHOU COLD ROLLED SILICON STEEL CO Ltd
Priority to CN201210451052.1A priority Critical patent/CN103806022A/en
Publication of CN103806022A publication Critical patent/CN103806022A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses an electroplating solution for electroplating decorative trivalent chromium on the surface of an electronic product. The electroplating solution consists of the following components: 86-90g/L of chromium chloride, 74-78g/L of urea, 52-56g/L of ammonium bromide, 36-40g/L of sodium chloride, 12-14g/L of boric acid, 160-170ml/L of methanol, 80-100ml/L of formic acid, 0.03-0.04g/L of sodium dodecyl sulfate, 8-10g/L of iron chloride and the balance of water.

Description

A kind of for the ornamental chromic plating solution of electronic product electroplating surface
Technical field
The present invention relates to electroplating technology field, relate in particular to a kind of for the ornamental chromic plating solution of electronic product electroplating surface.
Background technology
Decorative chromium coating becomes one of most widely used decorative coating of industry member owing to having good glossiness and corrosion resistance nature.But for a long time, traditional hexavalent chromium plating technique exists and is much difficult to the shortcoming that overcomes, as dispersive ability and covering power is poor, current efficiency is low, electroplating temperature is high, electroplating process to human and environment seriously polluted and plating solution aftertreatment difficulty etc.In sexavalent chrome electrodeposition process, in waste water and waste gas, contain a large amount of sexavalent chromes, it causes very large pollution to environment, and can cause human body renal failure, heart rate exhaustion, leukemia, strongly cause cancer.At present, the World Health Organization and countries in the world are more and more paid attention to the pollution problem of hexavalent chromium plating technique.Recent " about the instruction that bans use of some objectionable impurities in electronics " of European Union (ROHS) strict regulation after 1 day July in 2006, will forbid the use of sexavalent chrome in electronic product in European whole area." the electronics and IT products pollution control management way " of China also clearly stipulates to control chromic use from 1 day March in 2007.Therefore, the research of current alternative sexavalent chrome electro-deposition techniques has become one of the focus of electroplating industry research and difficult point.
At present, substitute hexavalent chromium plating technology and mainly contain three kinds: vapour deposition chromium coating, electro-deposited alloy coating, Electrodeposition of Trivalent Chromium.That gas phase deposition technology advantage is to pollute is little, deposition evenly, but its cost is high, covering power is poor, can not be used for the deposition of irregular workpiece and pipe fitting inner wall, is also unfavorable for large-scale industrial production.Electro-deposited alloy nickel-base alloy coating mainly comprises Zn-Sn-Co, Ni-P, Ni-W and other ternary alloys, and this kind of method polluted little, but bath stability is poor, can operational condition narrow.By contrast, decorate Electrodeposition of Trivalent Chromium technique toxicity and only have 1% of hexavalent chromium plating technique, and energy consumption is little, efficiency is high, poor poor with bath stability but its shortcoming is coating glossiness.Although the industrialization promotion of the ornamental trivalent chromium plating technique of existing external report, domestic have the ornamental trivalent chromium plating technique that independent intellectual property right also can be applied to suitability for industrialized production and have not been reported.
In order to reduce environmental pollution, the technology that reduces Chinese foreign state aspect chromium plating relies on, and overcomes the fort of green trade, develops and has independent intellectual property right and can be applied to industrial ornamental trivalent chromium plating technique in the urgent need to domestic investigators.
Summary of the invention
The object of the invention is to propose a kind of for the ornamental chromic plating solution of electronic product electroplating surface, by the adjustment to plating solution component, make plating solution more stable, thereby make the coating that adopts this plating solution to electroplate there is good covering power, good with the bonding force of matrix, and appearance looks elegant.
For reaching this object, the present invention by the following technical solutions:
A kind of for the ornamental chromic plating solution of electronic product electroplating surface, consisting of of this plating solution: chromium chloride 86-90g/L, urea 74-78g/L, brometo de amonio 52-56g/L, sodium-chlor 36-40g/L, boric acid 12-14g/L, methyl alcohol 160-170ml/L, formic acid 80-100ml/L, sodium laurylsulfonate 0.03-0.04g/L, iron(ic) chloride 8-10g/L, surplus is water.
Preferably, consisting of of this plating solution: chromium chloride 87-89g/L, urea 75-77g/L, brometo de amonio 53-55g/L, sodium-chlor 37-39g/L, boric acid 12.5-13.5g/L, methyl alcohol 163-167ml/L, formic acid 85-95ml/L, sodium laurylsulfonate 0.033-0.037g/L, iron(ic) chloride 8.5-9.5g/L, surplus is water.
Most preferably, the consisting of of this plating solution: chromium chloride 88g/L, urea 76g/L, brometo de amonio 54g/L, sodium-chlor 38g/L, boric acid 13.0g/L, methyl alcohol 165ml/L, formic acid 90ml/L, sodium laurylsulfonate 0.035g/L, iron(ic) chloride 9.0g/L, surplus is water.
Adopt the electro-plating method of this plating solution to be: when galvanic deposit, anode is titanium base iridium dioxide electrode, after workpiece is cleaned and is activated according to conventional Pre-treatment before plating, control plating temperature at 33-37 ℃, electrolyte ph is controlled at 2-3, and cathode current density is 22-24A/dm 2, within galvanic deposit 4-6 minute, can prepare the bright chromium coating that thickness is 1.3-1.5 μ m.
The additive that the present invention selects can strengthen the polarized action of negative electrode effectively, the grain-size of coating is reduced and show good light.The stability of plating solution is mainly subject to positive column Cr 3+be oxidized to Cr 2o 7 2-impact.Cr 2o 7 2-more than concentration reaches 3ppm, quality of coating declines.In plating solution of the present invention, there is the reductibility of two kinds of materials to be better than Cr 3+, can effectively stop Cr in plating solution 2o 7 2-generation, make plating solution there is satisfactory stability.
The present invention has following beneficial effect:
By the adjustment to solution composition, make plating solution more stable, thereby make the coating that adopts the method to electroplate there is good covering power, good with the bonding force of matrix, and appearance looks elegant, coating is as bright as a sixpence.While utilizing negative pole of right angle method Test coverage ability, the fraction of coverage of workpiece is greater than 88%.Chromium coating flawless, surface roughness Ra≤0.1 μ m.Bath stability, can reach continuous production requirement.Can substitute sexavalent chrome, environment friendly and pollution-free.
Embodiment
Embodiment mono-
A kind of for the ornamental chromic plating solution of electronic product electroplating surface, consisting of of this plating solution: chromium chloride 86g/L, urea 78g/L, brometo de amonio 52g/L, sodium-chlor 40g/L, boric acid 12g/L, methyl alcohol 170ml/L, formic acid 80ml/L, sodium laurylsulfonate 0.04g/L, iron(ic) chloride 8g/L, surplus is water.
Embodiment bis-
A kind of for the ornamental chromic plating solution of electronic product electroplating surface, consisting of of this plating solution: chromium chloride 90g/L, urea 74g/L, brometo de amonio 56g/L, sodium-chlor 36g/L, boric acid 14g/L, methyl alcohol 160ml/L, formic acid 100ml/L, sodium laurylsulfonate 0.03g/L, iron(ic) chloride 10g/L, surplus is water.
Embodiment tri-
A kind of for the ornamental chromic plating solution of electronic product electroplating surface, consisting of of this plating solution: chromium chloride 87g/L, urea 77g/L, brometo de amonio 53g/L, sodium-chlor 39g/L, boric acid 12.5g/L, methyl alcohol 167ml/L, formic acid 85ml/L, sodium laurylsulfonate 0.037g/L, iron(ic) chloride 8.5g/L, surplus is water.
Embodiment tetra-
A kind of for the ornamental chromic plating solution of electronic product electroplating surface, consisting of of this plating solution: chromium chloride 89g/L, urea 75g/L, brometo de amonio 55g/L, sodium-chlor 37g/L, boric acid 13.5g/L, methyl alcohol 163ml/L, formic acid 95ml/L, sodium laurylsulfonate 0.033g/L, iron(ic) chloride 9.5g/L, surplus is water.
Embodiment five
A kind of for the ornamental chromic plating solution of electronic product electroplating surface, consisting of of this plating solution: chromium chloride 88g/L, urea 76g/L, brometo de amonio 54g/L, sodium-chlor 38g/L, boric acid 13g/L, methyl alcohol 165ml/L, formic acid 90ml/L, sodium laurylsulfonate 0.035g/L, iron(ic) chloride 9g/L, surplus is water.

Claims (3)

1. one kind for the ornamental chromic plating solution of electronic product electroplating surface, it is characterized in that the consisting of of this plating solution: chromium chloride 86-90g/L, urea 74-78g/L, brometo de amonio 52-56g/L, sodium-chlor 36-40g/L, boric acid 12-14g/L, methyl alcohol 160-170ml/L, formic acid 80-100ml/L, sodium laurylsulfonate 0.03-0.04g/L, iron(ic) chloride 8-10g/L, surplus is water.
2. one as claimed in claim 1 is for the ornamental chromic plating solution of electronic product electroplating surface, it is characterized in that the consisting of of this plating solution: chromium chloride 87-89g/L, urea 75-77g/L, brometo de amonio 53-55g/L, sodium-chlor 37-39g/L, boric acid 12.5-13.5g/L, methyl alcohol 163-167ml/L, formic acid 85-95ml/L, sodium laurylsulfonate 0.033-0.037g/L, iron(ic) chloride 8.5-9.5g/L, surplus is water.
3. one as claimed in claim 2 is for the ornamental chromic plating solution of electronic product electroplating surface, it is characterized in that the consisting of of this plating solution: chromium chloride 88g/L, urea 76g/L, brometo de amonio 54g/L, sodium-chlor 38g/L, boric acid 13.0g/L, methyl alcohol 165ml/L, formic acid 90ml/L, sodium laurylsulfonate 0.035g/L, iron(ic) chloride 9.0g/L, surplus is water.
CN201210451052.1A 2012-11-12 2012-11-12 Electroplating solution for electroplating decorative trivalent chromium on surface of electronic product Pending CN103806022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210451052.1A CN103806022A (en) 2012-11-12 2012-11-12 Electroplating solution for electroplating decorative trivalent chromium on surface of electronic product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210451052.1A CN103806022A (en) 2012-11-12 2012-11-12 Electroplating solution for electroplating decorative trivalent chromium on surface of electronic product

Publications (1)

Publication Number Publication Date
CN103806022A true CN103806022A (en) 2014-05-21

Family

ID=50703389

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210451052.1A Pending CN103806022A (en) 2012-11-12 2012-11-12 Electroplating solution for electroplating decorative trivalent chromium on surface of electronic product

Country Status (1)

Country Link
CN (1) CN103806022A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104388989A (en) * 2014-11-14 2015-03-04 无锡信大气象传感网科技有限公司 Trivalent chromium electroplating liquid and preparation method thereof
CN105177651A (en) * 2015-10-27 2015-12-23 姜少群 Nickel-plating method of steel shell
CN108130570A (en) * 2017-12-15 2018-06-08 北京科技大学 A kind of compound trivalent plating chromium process
CN110760900A (en) * 2019-11-29 2020-02-07 扬州大学 Method for reducing hexavalent chromium wastewater to be used as chromium electroplating source and electroplating method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104388989A (en) * 2014-11-14 2015-03-04 无锡信大气象传感网科技有限公司 Trivalent chromium electroplating liquid and preparation method thereof
CN105177651A (en) * 2015-10-27 2015-12-23 姜少群 Nickel-plating method of steel shell
CN108130570A (en) * 2017-12-15 2018-06-08 北京科技大学 A kind of compound trivalent plating chromium process
CN110760900A (en) * 2019-11-29 2020-02-07 扬州大学 Method for reducing hexavalent chromium wastewater to be used as chromium electroplating source and electroplating method thereof

Similar Documents

Publication Publication Date Title
CN101445946B (en) Anticorrosive wearable electrodeposit clad layer of Ni-W-P ternary alloy and manufacturing technique and electroplate liquid thereof
CN102260891B (en) Method for electrodepositing nanocrystalline nickel-cobalt alloy by double-pulse
CN103132114B (en) The manufacture method of wear-resisting workpiece and scuff-resistant coating thereof
CN105386089A (en) Trivalent chromium hard chromium electroplating solution and application of trivalent chromium hard chromium electroplating solution in hard chromium electroplating
CN1313647C (en) Electroplating liquid and technology used in electrodeposition of trngsten series noncrystalline alloy cladding material or nanometer alloy cladding material
CN103806022A (en) Electroplating solution for electroplating decorative trivalent chromium on surface of electronic product
CN101665960A (en) Trivalent chromium sulfate plating solution and preparation method thereof
CN101078131A (en) Method for electrodepositing ornamental chromium coating in trivalency chromium coating solution
CN103668358B (en) A kind of method of pulse non-cyanide silver electroplating
CN101665959A (en) Trivalent chromium electroplating solution of sulfate system and electroplating method thereof
CN101078132A (en) Method for electrodepositing wearable thick chromium coating in trivalency chromium coating solution
CN202415725U (en) System for copper plating on yellow brass substrate
CN103451693A (en) Pulse electroplating method for alkaline zinc-nickel alloy with stable nickel content
CN105839154A (en) Method for electroplating Ni-Cr-Sn alloy plating layer through ionic liquid
CN107761142A (en) A kind of method of eutectic solvent Electrodeposition Bath of Iron evanohm coating
CN102383149B (en) Environment-friendly trivalent chromium electroplating solution and environment-friendly trivalent chromium electroplating method
CN101469436A (en) Method for preparing chromium based composite coating in environment protection type trivalent chromium plating bath
CN101629311A (en) Trivalent chromeplating process and plating solution thereof
CN106567110A (en) Method of electro-deposition of chromium-manganese alloy coating through deep-eutectic solvents
CN105063677A (en) Electroplating nickel solution and electroplating method thereof
CN102586821A (en) Tin-zinc alloy plating solution
CN101358362A (en) Pyrophosphate electroplating tin-cobalt-zinc ternary alloy non-chromium membrane method
CN103806026A (en) Method for electroplating decorative trivalent chromium on surface of electronic product
CN103849908B (en) A kind of trivalent chromium bath and in trivalent chromium bath the method for electrodeposited chromium coating
CN104195598A (en) Electroplating solution and electroplating method for electroplating bright nickel-titanium alloy on motorcycle accessories

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140521

C02 Deemed withdrawal of patent application after publication (patent law 2001)