CN103215622A - Method for electrotinning copper conductor of wire or cable - Google Patents
Method for electrotinning copper conductor of wire or cable Download PDFInfo
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- CN103215622A CN103215622A CN2012102093196A CN201210209319A CN103215622A CN 103215622 A CN103215622 A CN 103215622A CN 2012102093196 A CN2012102093196 A CN 2012102093196A CN 201210209319 A CN201210209319 A CN 201210209319A CN 103215622 A CN103215622 A CN 103215622A
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- copper conductor
- eleetrotinplate
- plating bath
- electric wire
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Abstract
The invention discloses a method for electrotinning a copper conductor of a wire or a cable. In order to obtain a finished product, the method comprises the following processes of pretreating, electroplating, recovering, cleaning and drying. Energy consumption of the technology by an electrotinning method reduces to less than one fifth of that of the hot melt tinning technology under a same workload condition. A utilization rate of material tin is more than 95%. An operator does not need to point and thread. Production is performed under room temperature. Production can be started or stopped at any time. Labor intensity of a worker is obviously reduced.
Description
Technical field
The present invention relates to electroplating technology field, metallic surface, particularly the tin plating method of electric wire conduction copper cash.
Background technology
In the electric wire manufacturing, the most frequently used plating lead is a tinned wird, and the quality of its conductor material accounts for the dominant position of electric wire quality.Therefore, can prevent effectively behind the copper wire tin-plating that the oxidation of copper cash and copper cash from contacting sulfuration problems such as the rubber that causes is clamminess, copper cash blackening with rubber, improve the weldability of cable work-ing life and core simultaneously.Eleetrotinplate technology has equipment and drops into low, high efficiency, simple operation and other advantages, is widely used in the wires and cables industry.
At present, the mode of production of China's line cable industry tinned wird mainly contains two kinds of hot tinning and eleetrotinplates.Zinc-plated on the market generally all adopts the hot melt plating, and it may further comprise the steps: soak soldering flux-60-80 ℃ of drying-250 ℃ hot melt zinc-plated-mould wears mould-air-cooled-constant speed-finished product.This kind hot melt depositing process needs tin is heated to (223～250 ℃) more than the fusing point, this method power consumption serious (30～40kW), material tin utilization ratio is low, about about 85%, labor strength is big, in the production process wear mould (remove unnecessary tin) need be at the temperature operation about 250 ℃, soldering flux decomposition gas contaminate environment, and the possibility that has the tiny tin sweat(ing) that splashes to scald at any time.
Fan Defa discloses the electroplating technology flow process in " eleetrotinplate technology produce to be revealed the analysis of causes and the solution of copper " (" electric wire " 2004 the 5th phase 45-46 pages or leaves) paper as follows: unwrapping wire (bare copper wire)-alkali cleaning (oil removing)-flushing with clean water-pickling (copper removal oxide film)-plating-flushing with clean water--dry up-take-up-wire drawing, annealing-take-up (finished product).And can derive relation between working current density (I) and tin thickness, the production rate: I=0.62 * d * V * δ (A) according to Faraday's law of electrolysis and Coulomb's law, d is copper cash linear diameter (mm) in the formula; V is the speed (m/min) of production line; δ is tin thickness (μ m).
Chinese patent application CN1133903A discloses a kind of process for plating copper wire with tin, it comprises copper cash plating pre-treatment, copper cash is electroplated and copper cash plating aftertreatment three process, it is characterized in that electroplate liquid has stannous fluoboric acid, the inferior lead of fluoroboric acid, fluoroboric acid, boric acid, pyrocatechol, combination brightening agent and water constitute, the tinned wird of producing has the color and luster uniformity, bright and clean, do not have to reveal copper, corrosion phenomena, heat 200 ℃ and reach 5 minutes and do not fade.The fluorochemical that relates in this technology easily decompose the generation toxic substance, and operation is comparatively loaded down with trivial details, is not suitable for scale operation.
Therefore, need the copper wire tin-plating method that a kind of energy consumption is low, operational safety is simple, environmental pollution is little and throughput is big, when improving the tin raw material utilization ratio, produce fine tin-coated copper lead.
Summary of the invention
The object of the present invention is to provide a kind of tin plating method of electric wire conduction copper cash, can overcome aforementioned disadvantages, satisfy the needs of safety in production, high-efficiency high-quality.
To achieve these goals, the present invention adopts following technical scheme:
A kind of method of electric wire copper conductor eleetrotinplate, it comprises the operation that obtains finished product after pre-treatment, plating, recovery, cleaning, the drying, it is characterized in that: the degree of each ingredients constitute plating bath total amount is in the plating bath that described electroplating work procedure adopts: stannous sulfate 40～70g/L, sulfuric acid 70～100g/L, additive 5～15ml/L, surplus is a water; Described electroplating technological parameter is current density 3～5A/dm2, and temperature is 10～30 ℃, copper conductor transfer rate 10～20m/min.
Preferably, the degree of each ingredients constitute plating bath total amount is in the plating bath that described electroplating work procedure adopts: stannous sulfate 50～60g/L, and sulfuric acid 80～90g/L, additive 8～12ml/L, surplus is a water.
Wherein, described pretreatment procedure carries out pickling for the sulphuric acid soln that adopts 20% volume fraction.
Wherein, described additive is acid zinc-plated bright dose of SS-920.
Wherein, described electroplating work procedure is that the copper cash after will cleaning is introduced pot, and plating bath is pressed above-mentioned recipe configuration in the pot, and pot internal fixing block tin, and block tin is connected with direct supply "+" utmost point, and copper cash connects power supply "-" utmost point by cathode drum.
Wherein, described recovery can adopt back means such as scraping plating bath to reclaim tin.
Wherein, described cleaning can be adopted flushing with clean water.
Wherein, described drying can adopt dried cloth to dry.
Adopt the method for eleetrotinplate according to the present invention, equal workload installed capacity is 6kW only, and energy consumption is reduced to below 1/5th.
Adopt the method for eleetrotinplate according to the present invention, material tin utilization ratio improves 10% more than 95%.
Adopt the method for eleetrotinplate according to the present invention, the operative employee need not to wear mould, and (10～30 ℃) are produced under the room temperature, all can start or stop production any time, and working strength of workers obviously reduces.And the fusion rule just can begin to produce earlier with after the tin fusing in the tin stove, more than its reactive power 60kW.
Embodiment
Below in conjunction with specific embodiment the present invention is done further expansion explanation, but it is pointed out that the method for electric wire copper conductor eleetrotinplate of the present invention is not limited to this concrete component or technology.Obviously be understandable that for those skilled in the art,, also can be directly applied in these unspecified other similar component and technologies even the following description content is not done any adjustment or correction.
A kind of method of electric wire copper conductor eleetrotinplate, it comprises the operation that obtains finished product after pre-treatment, plating, recovery, cleaning, the drying, the degree of each ingredients constitute plating bath total amount is in the plating bath that described electroplating work procedure adopts: stannous sulfate 40～70g/L, sulfuric acid 70～100g/L, additive 5～15ml/L, surplus is a water; Described electroplating technological parameter is current density 3～5A/dm
2, temperature is 10～30 ℃, copper conductor transfer rate 10～20m/min.
In a preferred embodiment, the degree of each ingredients constitute plating bath total amount is in the plating bath that described electroplating work procedure adopts: stannous sulfate 50～60g/L, and sulfuric acid 80～90g/L, additive 8～12ml/L, surplus is a water.
The copper conductor pre-treatment comprises the sulphuric acid soln cleanup acid treatment that adopts 20% volume fraction, removes the impurity components such as zone of oxidation on copper conductor surface.Those skilled in the art are understood that other treatment steps such as alkali liquid washing, flushing with clean water are not got rid of in the copper conductor pre-treatment.
The electroplate liquid process for preparation is roughly as follows: add deionized water or the distilled water that needs long-pending half amount of part in spareslots, under constantly stirring, add a certain amount of whole sulfuric acid at leisure.At this moment, temperature rises rapidly in the groove, and is cold slightly, adding stannous sulfate then under constantly stirring, and treats that stannous sulfate all after the dissolving, adds the deionized water or the distilled water of second half amount, cool to room temperature.SS-920 (the joining cylinder) brightening agent that be filled into and produce groove, adds requirement stirs.Plating bath needs after electrolysis in 2-4 hour under normal conditions, could formally produce through the examination plating.
Electroplating work procedure is that the copper cash after will cleaning is introduced pot, and plating bath is pressed above-mentioned recipe configuration in the pot, and pot internal fixing block tin, and block tin is connected with direct supply "+" utmost point, and copper cash connects power supply "-" utmost point by cathode drum.Described electroplating technological parameter is current density 3～5A/dm
2, temperature is 10～30 ℃, copper conductor transfer rate 10～20m/min.
Recovery process can adopt back means such as scraping plating bath to reclaim tin, but is not limited thereto, and also can adopt other conventional means of this area.
Matting can adopt flushing with clean water, but is not limited thereto, and also can adopt other cleaning means commonly used of this area, such as flowing water clean, hot water is scalded, water vapour cleaning etc.
Drying can adopt dried cloth to dry, but is not limited thereto, and also can adopt other dry means commonly used of this area, such as hot-air seasoning.
In process of production, the solvent in the pot is along with the carrying out that produces needs to replenish, and the solution composition that is replenished by the plating bath device for supplying and ratio are with before to open composition, ratio that cylinder is consistent.
Embodiment 1
After the sulphuric acid soln pickling of copper conductor to be plated with 20% volume fraction, electroplate in the plating tank of introducing 1L, and electroplate liquid formulation is stannous sulfate 40g in the pot, sulfuric acid 70mg, SS-920 additive 5ml, surplus is a water.And pot internal fixing block tin, block tin is connected with direct supply "+" utmost point, and copper cash connects power supply "-" utmost point by cathode drum, and electroplating technological parameter is current density 3A/dm
2, temperature is 10 ℃, copper conductor transfer rate 10m/min.The copper conductor of eleetrotinplate obtains finished product with flushing with clean water, dried cloth after drying after reclaiming tin.
The tinned wird that adopts the inventive method to produce, no matter on performance and quality product, all meet GB4910-85 national standard and Chinese RoHS (" some objectionable impurities instruction is used in restriction in electric, the electronics ") standard, and quality product is better, material use efficiency is higher, be about 96%, energy consumption is lower, is about 6kW.
Embodiment 2
Operation is with embodiment 1, unique different be that electroplate liquid formulation is stannous sulfate 70g/L, sulfuric acid 100g/L, additive 15ml/L, surplus is a water.
The tinned wird that adopts the inventive method to produce, no matter on performance and quality product, all meet GB4910-85 national standard and Chinese RoHS (" some objectionable impurities instruction is used in restriction in electric, the electronics ") standard, and quality product is better, material use efficiency is higher, be about 97%, energy consumption is lower, is about 6.5kW.
Embodiment 3
Operation is with embodiment 1, unique different be that electroplate liquid formulation is stannous sulfate 50g/L, sulfuric acid 80g/L, additive 8ml/L, surplus is a water.
The tinned wird that adopts the inventive method to produce, no matter on performance and quality product, all meet GB4910-85 national standard and Chinese RoHS (" some objectionable impurities instruction is used in restriction in electric, the electronics ") standard, and quality product is better, material use efficiency is higher, be about 98%, energy consumption is lower, is about 5.5kW.
Embodiment 4
Operation is with embodiment 1, unique different be that electroplate liquid formulation is stannous sulfate 60g/L, sulfuric acid 90g/L, additive 12ml/L, surplus is a water.
The tinned wird that adopts the inventive method to produce, no matter on performance and quality product, all meet GB4910-85 national standard and Chinese RoHS (" some objectionable impurities instruction is used in restriction in electric, the electronics ") standard, and quality product is better, material use efficiency is higher, be about 97.5%, energy consumption is lower, is about 5.8kW.
Although above the specific embodiment of the present invention has been given to describe in detail and explanation; but should indicatedly be; we can carry out various equivalences to above-mentioned embodiment according to conception of the present invention and change and modification; when the function that it produced does not exceed spiritual that specification sheets contains yet, all should be within protection scope of the present invention.
Claims (4)
1. the method for an electric wire copper conductor eleetrotinplate, it comprises the operation that obtains finished product after pre-treatment, plating, recovery, cleaning, the drying, it is characterized in that: the degree of each ingredients constitute plating bath total amount is in the plating bath that described electroplating work procedure adopts: stannous sulfate 40～70g/L, sulfuric acid 70～100g/L, additive 5～15ml/L, surplus is a water; Described electroplating technological parameter is current density 3～5A/dm
2, temperature is 10～30 ℃, copper conductor transfer rate 10～20m/min.
2. the method for a kind of electric wire copper conductor eleetrotinplate according to claim 1, the degree that it is characterized in that each ingredients constitute plating bath total amount in the plating bath that described electroplating work procedure adopts is: stannous sulfate 50～60g/L, sulfuric acid 80～90g/L, additive 8～12ml/L, surplus is a water.
3. the method for a kind of electric wire copper conductor eleetrotinplate according to claim 1 is characterized in that described pretreatment procedure carries out pickling for the sulphuric acid soln that adopts 20% volume fraction.
4. the method for a kind of electric wire copper conductor eleetrotinplate according to claim 1 is characterized in that described additive is acid zinc-plated bright dose of SS-920.
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| CN201210209319.6A CN103215622B (en) | 2012-06-13 | 2012-06-13 | A kind of method of electric wire copper conductor eleetrotinplate |
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| CN201210209319.6A CN103215622B (en) | 2012-06-13 | 2012-06-13 | A kind of method of electric wire copper conductor eleetrotinplate |
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| CN103215622B CN103215622B (en) | 2016-03-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545698A (en) * | 2013-10-12 | 2014-01-29 | 合肥聚能电物理高技术开发有限公司 | Surface tin-coating and moulding method for superconducting cables |
| CN104060309A (en) * | 2014-06-13 | 2014-09-24 | 安徽省宁国天成电工有限公司 | Surface tinning method of metallic copper wire |
| WO2016080823A1 (en) * | 2014-11-19 | 2016-05-26 | Ontiveros Balcázar Alberto Manuel | Parts and electrodes made of zinc, coated in tin, and method for the production thereof |
| CN108754551A (en) * | 2018-06-21 | 2018-11-06 | 安徽特力电缆有限公司 | A kind of electroplate liquid of cable conductor and its electro-plating method for cable copper conductor |
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| CN1032040A (en) * | 1988-09-28 | 1989-03-29 | 天津大学 | The method for preparing composite tin-plating layer |
| CN1094099A (en) * | 1994-03-24 | 1994-10-26 | 天津大学 | The tinned method of a kind of acidity |
| CN101302634A (en) * | 2008-06-24 | 2008-11-12 | 彭旭林 | Plating solution formula of copper wire tin plating process and copper wire tin plating process |
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2012
- 2012-06-13 CN CN201210209319.6A patent/CN103215622B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032040A (en) * | 1988-09-28 | 1989-03-29 | 天津大学 | The method for preparing composite tin-plating layer |
| CN1094099A (en) * | 1994-03-24 | 1994-10-26 | 天津大学 | The tinned method of a kind of acidity |
| CN101302634A (en) * | 2008-06-24 | 2008-11-12 | 彭旭林 | Plating solution formula of copper wire tin plating process and copper wire tin plating process |
Non-Patent Citations (2)
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| 和海燕等: "酸性光亮度锡", 《机械管理开发》, no. 4, 30 November 2001 (2001-11-30), pages 40 - 42 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545698A (en) * | 2013-10-12 | 2014-01-29 | 合肥聚能电物理高技术开发有限公司 | Surface tin-coating and moulding method for superconducting cables |
| CN103545698B (en) * | 2013-10-12 | 2016-05-04 | 合肥聚能电物理高技术开发有限公司 | Hyperconductive cable surface tining and moulding method |
| CN104060309A (en) * | 2014-06-13 | 2014-09-24 | 安徽省宁国天成电工有限公司 | Surface tinning method of metallic copper wire |
| WO2016080823A1 (en) * | 2014-11-19 | 2016-05-26 | Ontiveros Balcázar Alberto Manuel | Parts and electrodes made of zinc, coated in tin, and method for the production thereof |
| CN108754551A (en) * | 2018-06-21 | 2018-11-06 | 安徽特力电缆有限公司 | A kind of electroplate liquid of cable conductor and its electro-plating method for cable copper conductor |
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| CN103215622B (en) | 2016-03-23 |
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Denomination of invention: A Method of Electroplating Tin on Copper Conductors of Electric Wires and Cables Effective date of registration: 20230811 Granted publication date: 20160323 Pledgee: Wuwei Silver Village bank LLC Pledgor: ANHUI CONSTANT CRYSTAL CABLE GROUP Co.,Ltd. Registration number: Y2023980051860 |