CN1011318B - Electroplate solution composed of bright sn-zn alloy - Google Patents
Electroplate solution composed of bright sn-zn alloyInfo
- Publication number
- CN1011318B CN1011318B CN 89104464 CN89104464A CN1011318B CN 1011318 B CN1011318 B CN 1011318B CN 89104464 CN89104464 CN 89104464 CN 89104464 A CN89104464 A CN 89104464A CN 1011318 B CN1011318 B CN 1011318B
- Authority
- CN
- China
- Prior art keywords
- component
- zinc alloy
- tin
- bright
- alloy electroplating
- 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.)
- Expired
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Classifications
-
- 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
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/60—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of tin
Abstract
The present invention relates to a bright plating solution of tin-zinc alloy, more specifically to a technological process for plating a bright tin-zinc alloy coating by using a brightening agent in a plating solution containing citric acid or salts thereof, which is characterized in that the brightening agent containing aliphatic amine compounds is added to the bright plating solution of tin-zinc alloy containing citric acid or salts thereof. By using the plating solution to which the novel brightening agent is added, plating articles can be plated with bright tin-zinc alloy coating at the range of 0.5 to 10 A/dm<2> of current density.
Description
The present invention relates to bright tin-zinc alloy electroplating liquid.Relate in particular to lemon acid type light tin-zinc alloy electroplating liquid.Be added with the brightening agent of fatty aminated compounds in this plating bath.
Tin-zinc alloy coating has been widely used for protecting the corrosion of ferrous materials, and has good welding property, can be used as for cadmium coater.
Tin-zinc alloy plating bath commonly used has prussiate, pyrophosphate salt.Fluoroborate and gluconate etc.These plating baths have a common shortcoming to be: the alloy composition of tin-zinc coating is subjected to the influence of current density and changes a lot in quite wide scope.The current efficiency of fluoroborate and prussiate plating bath is not high, and needs its waste water is handled.
In order to overcome these shortcomings, russian patent U.S.S.R No.293876 has proposed with citric acid or its salts solution electrodepositing tin-zinc alloys.In this plating bath, add dextrin and gelatin as brightening agent, can obtain tin-zinc alloy coating, but this coating is brightless than fine crystallization.In order to improve luminance brightness day disclosure special permission communique clear 51～75632 a kind of tin-zinc brightening agent has been proposed.This brightening agent is made up of with the aqueous solution of phthalic acid reaction and aromatic aldehyde the reaction of aliphatic amide and organic acid acetic again.Its advantage is the tin-zinc alloy coating that can obtain light or half light, and shortcoming is the working current density narrow range.U.S. Pat P4168223 has proposed a kind of brightening agent, the combination of promptly a kind of water-soluble polymkeric substance and aldehyde compound.This polymkeric substance can be a polyoxyethylene, the reaction product of a kind of and epoxy compounds in polyoxyethylene deriv or ethylene glycol, propylene glycol, the glycerine.This brightening agent also can obtain the tin-zinc alloy coating of light or half light.Shortcoming remains the working current density narrow range.
Purpose of the present invention is exactly in order to obtain the tin-zinc alloy coating of light or half light in the current density range of broad.
The object of the present invention is achieved like this: add the brightening agent that is selected from following component in lemon acid type plating bath.
Component 1: amine compound.This compound is selected from quadrol, Diethylenetriamine, three second tetramines, tetraethylene-pentamine, many second polyamines etc.Add-on is 1～10 grams per liter.
Component 2: the reaction of aliphatic amide and acylate, again with the aqueous solution of phthalic acid reaction product.Its reactant is selected from quadrol, 1.6-hexanediamine, dimethyl malonate, Succinic acid dimethylester, ethyl succinate, diethylene adipate, Tetra hydro Phthalic anhydride etc.
Component 3: water-soluble polyoxyethylene compound or polyoxyethylene deriv are selected from polyoxyethylene glycol, peregal, OP type emulsifying agent etc.
Component 4: aromatic aldehyde is selected from piperonylaldehyde, aubepine, phenyl aldehyde etc.
Brightening agent can be a component 1,2, and 4 combination also can be by component 1,3, and 4 form or by component 1,2,3,4 form.
The present invention further makes an explanation by following example:
The plating bath essentially consist:
Triammonium citrate ((NH
4)
3C
6H
5O
7) 0.5mol/l
Stannous sulfate (SnSO
4) 0.1mol/l
Zinc sulfate (ZnSO
47H
2O) 0.2mol/l
Sulfuric acid amine ((NH
4)
2SO
4) 0.6mol/l
PH value 5～6
20 ℃ of temperature
With 267 milliliters of Hull Cells with 250 ml solns at copper or the enterprising electroplating of iron-based body, plating strength of current is 2A, plating time is 4 minutes.
Used component 2 is among the embodiment 1: ethyl succinate 15.5 grams add quadrol 5 grams in 30 fens kinds of 80～90 ℃ of following insulated and stirred, add 1.6-hexanediamine 10 grams again, stirred 30 minutes under the equality of temperature, add Tetra hydro Phthalic anhydride 20 gram then 93～97 ℃ of following insulated and stirred 90 minutes, add 200 milliliters in water at last.
Used component 2 is among the embodiment 2: replace ethyl succinate with Succinic acid dimethylester, consumption is 13 grams, and its synthetic method is with used component 2 among the embodiment 1.
Example 1: component 2 8ml/l
Piperonylaldehyde 20mg/l
Tetraethylene-pentamine 2g/l
Example 2: component 2 8ml/l
Piperonylaldehyde 20mg/l
Tetraethylene-pentamine 2g/l
Example 3: polyoxyethylene glycol (molecular weight 1540) 2g/l
Piperonylaldehyde 20mg/l
Tetraethylene-pentamine 2g/l
Example 4: polyoxyethylene glycol (molecular weight 1540) 2g/l
Piperonylaldehyde 20mg/l
Many second polyamines 2g/l
Example 5: polyoxyethylene glycol (molecular weight 1540) 2g/l
Aubepine 20mg/l
Tetraethylene-pentamine 2g/l
Example 6: peregal 2g/l
Piperonylaldehyde 20mg/l
Tetraethylene-pentamine 2g/l
The Hull Cell test-results of above-mentioned 6 examples is seen accompanying drawing 1.By these Hull Cell tests as can be seen:
Example 1 light district is at 0.5～10A/dm
2
Example 2 light districts are at 0.8～8A/dm
2
Example 3 light districts and half light district are at 1～10A/dm
2
Example 4 lights and half light district are at 0.8～10A/dm
2
Example 5 lights and half light district are at 0.8～10A/dm
2
Example 6 lights and half light district are at 0.2～7A/dm
2
In above-mentioned example, if do not add component 1, almost do not go out bright coating, just produce or enlarged lighted region just because of its adding, in the current density range of broad, obtained the tin-zinc alloy electrodeposits of light or half light.In addition, in electroplating, reality finds also that the adding of component 1 has reduced fringing effect.
Accompanying drawing 1 illustrates the Hull Cell test-results.
Claims (5)
1, bright tin-zinc alloy electroplating liquid adds brightening agent by lemon acid type plating bath and forms, and it is characterized in that used brightening agent is made up of component 1,2,4 or 1,3,4 or 1,2,3,4, and described component 1 is an amine compound; Component 2 be the reaction of aliphatic amide and acylate again with the aqueous solution of phthalic acid reaction product; Component 3 is water-soluble polyoxyethylene compound or polyoxyethylene deriv; Component 4 is an aromatic aldehyde; Component 1 consumption is 1～10g/l.
2, bright tin-zinc alloy electroplating liquid as claimed in claim 1 is characterized in that said component 1 amine compound is selected from quadrol, Diethylenetriamine, three second tetramines, tetraethylene-pentamine, many second polyamines.
3, bright tin-zinc alloy electroplating liquid as claimed in claim 1, it is characterized in that the reaction of said component 2 aliphatic amides and acylate, with the aqueous solution of phthalic acid reaction product, its reactant is selected from quadrol, 1.6-hexanediamine, dimethyl malonate, Succinic acid dimethylester, ethyl succinate, diethylene adipate, Tetra hydro Phthalic anhydride again.
4, bright tin-zinc alloy electroplating liquid as claimed in claim 1 is characterized in that said component 3 water-soluble polyoxyethylene compounds or polyoxyethylene deriv are selected from polyoxyethylene glycol, peregal, OP type emulsifying agent.
5, bright tin-zinc alloy electroplating liquid as claimed in claim 1 is characterized in that said component 4 aromatic aldehydes are selected from piperonylaldehyde, aubepine, phenyl aldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104464 CN1011318B (en) | 1989-06-30 | 1989-06-30 | Electroplate solution composed of bright sn-zn alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104464 CN1011318B (en) | 1989-06-30 | 1989-06-30 | Electroplate solution composed of bright sn-zn alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1039629A CN1039629A (en) | 1990-02-14 |
| CN1011318B true CN1011318B (en) | 1991-01-23 |
Family
ID=4855561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89104464 Expired CN1011318B (en) | 1989-06-30 | 1989-06-30 | Electroplate solution composed of bright sn-zn alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1011318B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087361C (en) * | 1995-11-14 | 2002-07-10 | 唐文海 | Zn-Sn alloy electroplating bath and preparing process thereof |
| CN101403112B (en) * | 2008-10-28 | 2012-08-08 | 昆山成利焊锡制造有限公司 | Chemical tin plating liquor for copper and copper alloy |
| CN102443827A (en) * | 2011-12-19 | 2012-05-09 | 张家港舒马克电梯安装维修服务有限公司镀锌分公司 | Sn-Zn alloy electroplating solution |
| CN102634827B (en) * | 2012-05-07 | 2015-04-08 | 东莞市闻誉实业有限公司 | Tin-zinc alloy electroplating method |
| CN113755777B (en) * | 2021-09-23 | 2023-01-24 | 马鞍山钢铁股份有限公司 | Environment-friendly surface-treated galvanized steel sheet and preparation method thereof |
-
1989
- 1989-06-30 CN CN 89104464 patent/CN1011318B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1039629A (en) | 1990-02-14 |
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Legal Events
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |