WO2018166047A1 - 端子料带的电镀方法 - Google Patents

端子料带的电镀方法 Download PDF

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Publication number
WO2018166047A1
WO2018166047A1 PCT/CN2017/082391 CN2017082391W WO2018166047A1 WO 2018166047 A1 WO2018166047 A1 WO 2018166047A1 CN 2017082391 W CN2017082391 W CN 2017082391W WO 2018166047 A1 WO2018166047 A1 WO 2018166047A1
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terminal strip
electroplating
area
waste
contact
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PCT/CN2017/082391
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English (en)
French (fr)
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张诗豪
胡睢宁
王奇亮
韩茜
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华为技术有限公司
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Priority to CN201780011812.8A priority Critical patent/CN108779567A/zh
Publication of WO2018166047A1 publication Critical patent/WO2018166047A1/zh

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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/02Electroplating of selected surface areas

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  • This invention relates to a method of electroplating a terminal strip.
  • the embodiment of the present application provides a plating method for a terminal strip, which can reduce the consumption of precious metals, thereby reducing the plating cost.
  • an embodiment of the present application provides a method for plating a terminal strip, including the following steps:
  • the terminal strip is immersed in a precious metal electrolyte, and the terminal strip is electroplated. During the electroplating process, the waste metal region subjected to the insulation treatment cannot deposit precious metal.
  • the waste area is subjected to surface insulation treatment by providing a separation layer on the surface of the waste area, and after the electroplating, the separation layer is removed from the waste area.
  • the barrier layer is a wax.
  • the method of providing an isolation layer in the waste area includes the following steps:
  • the terminal strip after preheating and cleaning
  • the contact zone and the non-contact zone are cleaned to remove wax residue.
  • the terminal strip is cleaned and degreased using an organic solvent.
  • the terminal strip is placed in an oven at 60-70 ° C for preheating.
  • the wax impregnation process of the waste zone of the terminal strip is carried out in a wax bath at 200-220 °C.
  • the process of wax impregnation of the waste zone of the terminal strip is performed a plurality of times as needed for the thickness of the barrier layer.
  • the method of removing the barrier layer from the waste zone comprises: recovering with a boiling water waxing agent, and cleaning the terminal strip with a water-soluble cleaning agent.
  • the material of the isolation layer is polyethylene (PE).
  • PE polyethylene
  • the separator is attached to the front and back sides of the waste area by means of pasting.
  • the PE film is peeled off from the scrap area A.
  • the method for electroplating the terminal strip provided by the present application is to divide the terminal strip into waste areas, contact areas and non-contact areas which are sequentially distributed from the edge of the terminal strip to the central area, and the surface of the scrap area is insulated. Treating, so that the scrap area loses the metal property, so that in the process of electroplating in the precious metal electrolyte, the waste material in the waste treatment area cannot deposit precious metal, that is, the precious metal cannot adhere to the waste area, thereby reducing the amount of precious metal, thereby Greatly reduce the cost of the terminal strip.
  • FIG. 1 is a schematic view of a terminal strip used in a method of electroplating a terminal strip in an embodiment of the present application.
  • Fig. 2 is a schematic view showing the placement of the terminal strip shown in Fig. 1 into a noble metal electrolyte.
  • the embodiment of the present application provides a method for electroplating a terminal strip for electroplating a noble metal to a terminal strip, the noble metal being a platinum-based metal, such as ruthenium, rhodium, palladium or the like.
  • the terminal can be improved in resistance to electrolysis and corrosion.
  • the terminals are used in electrical connectors to increase the service life of the electrical connectors.
  • the process of precious metal plating on the terminal strip requires immersion plating to immerse the terminal strip in the precious metal electrolyte body.
  • the terminal strip 100 is divided into a scrap area A, a contact area B and a non-contact area C which are sequentially distributed from the edge of the terminal strip 100 to the central area, the contact area B and the non-contact area.
  • Zone C sets terminal 101; when terminal strip 100 is applied to an actual product (eg, a connector), waste zone A of terminal strip 100 will be cut away, leaving contact zone B and non-contact zone C, thus, plating precious metal In the process of the plating, if the contact zone B and the non-contact zone C are plated, the consumption of precious metals is saved.
  • the present application performs surface insulation treatment on the scrap area A so that the scrap area A loses the metal property, so that the scrap area A cannot be electroplated thereon even if it is immersed in the precious metal electrolyte.
  • the terminal strip 100 is immersed in the precious metal electrolyte 200, and the terminal strip 100 is electroplated. During the electroplating process, the waste material A subjected to the insulation treatment cannot deposit precious metal.
  • the waste area is subjected to surface insulation treatment by providing a separation layer on the surface of the waste area A, and after the electroplating, the separation layer is removed from the waste area A.
  • the metal characteristics of the waste area A may also be changed by other chemical treatment methods, so that the waste area A cannot adhere to the precious metal.
  • the barrier layer is a wax.
  • the thickness of the wax can satisfy the entire area of the waste area A.
  • a method of providing a wax-based isolation layer in the waste area A includes the following steps:
  • the terminal strip 100 is cleaned and degreased.
  • the terminal strip 100 is preheated after cleaning. Specifically, the terminal strip 100 is cleaned and degreased using an organic solvent.
  • the terminal strip 100 was placed in an oven at 60-70 ° C for preheating.
  • the waste zone A of the terminal strip 100 is subjected to wax impregnation.
  • the process of wax impregnation of the waste zone A of the terminal strip 100 is carried out in a wax bath at 200-220 °C.
  • the process of wax impregnation of the scrap zone A of the terminal strip 100 is performed a plurality of times as needed for the thickness of the separator.
  • the contact zone B and the non-contact zone C need to be cleaned to remove wax residue.
  • the method for removing the isolation layer from the scrap area A comprises: recovering with a boiling water waxing agent, and cleaning the terminal strip 100 with a water-soluble cleaning agent. .
  • the material of the isolation layer is polyethylene (PE).
  • PE polyethylene
  • the barrier layer is attached to the front and back sides of the waste area A by means of bonding. After the electroplating, if it is necessary to recover the PE film, the PE film is peeled off from the scrap area A.
  • the electroplating method of the terminal strip 100 provided by the present application is divided into the scrap area A, the contact area B and the non-contact area C which are sequentially distributed from the edge of the terminal strip 100 to the central area by the terminal strip 100, and
  • the waste area A is subjected to surface insulation treatment so that the waste area A loses the metal property, so that in the process of electroplating in the precious metal electrolyte, the waste material A subjected to the insulation treatment cannot deposit precious metal, that is, the precious metal cannot adhere to the waste material.
  • Zone A can reduce the amount of precious metal used, thereby greatly reducing the cost of the terminal strip 100.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

一种端子料带(100)的电镀方法包括如下步骤:将端子料带(100)划分为从端子料带(100)边缘向中心区域依次分布的废料区(A)、接触区(B)及非接触区(C),接触区(B)和非接触区(C)设置端子(101)。对废料区(A)进行表面绝缘处理,以使废料区(A)失去金属属性。将端子料带(100)浸入贵金属电解液(200)中,电镀端子料带(100),电镀过程中,经过绝缘处理的废料区(A)无法沉积贵金属。能够降低贵金属的用量,降低成本。

Description

端子料带的电镀方法 技术领域
本发明涉及端子料带的电镀方法。
背景技术
终端产品越来越苛刻的使用环境(快充、防水等)对连接器的质量提出了更高的要求,因端子被腐蚀而导致的失效尤为突出。常规的Au/Ni镀层在抗电解腐蚀方面有一定的效果,但是随着插拔次数增加,表层镀金层磨损严重,底层镀镍层或基材铜暴露于空气中,在潮湿带电环境下,腐蚀会迅速发生导致连接器失效。为了解决该问题,采用具有极强抗腐蚀能力的铂系金属铑/钌/钯等贵金属进行镀层方案的堆叠,能够大幅提升连接器抗电解腐蚀能力和使用寿命。
但是,铂系金属价格非常昂贵,且只能采用浸镀的方式,如何操作能够使得端子料带进在电镀过程中减少贵金属消耗量,从而降低电镀成本,为业界发展的方向。
发明内容
本申请实施例提供一种端子料带的电镀方法,能够减少贵金属消耗量,从而降低电镀成本。
为了实现上述目的,本申请实施方式提供如下技术方案:
第一方面,本申请实施例提供一种端子料带的电镀方法,包括如下步骤:
将端子料带划分为从所述端子料带边缘向中心区域依次分布的废料区、接触区及非接触区,所述接触区和所述非接触区设置端子;
对所述废料区进行表面绝缘处理,以使所述废料区失去金属属性;
将所述端子料带浸入贵金属电解液中,电镀所述端子料带,电镀过程中,经过绝缘处理的所述废料区无法沉积贵金属。
一种实施方式中,通过在所述废料区表面设置隔离层的方式对所述废料区进行表面绝缘处理,电镀后,将所述隔离层从所述废料区上除去。
一种实施方式中,所述隔离层为蜡。
一种实施方式中,在所述废料区设置隔离层的方法包括如下步骤:
对端子料带进行清洗除油;
预热清洗后所所述端子料带;
对所述端子料带的所述废料区进行蜡剂浸渍;及
清洁所述接触区和所述非接触区,以清除蜡剂残留。
一种实施方式中,使用有机溶剂对所述端子料带进行清洗除油。
一种实施方式中,将所述端子料带置于60-70℃的烘箱中进行预热。
一种实施方式中,对所述端子料带的所述废料区进行蜡剂浸渍的过程在200-220℃的蜡槽中进行。
一种实施方式中,对所述端子料带的所述废料区进行蜡剂浸渍的过程根据所述隔离层的厚度的需要进行多次操作。
一种实施方式中,将所述隔离层从所述废料区上除去的方法包括:用开水烫熔蜡剂进行回收,用水溶性清洗剂对所述端子料带进行清洗处理。
一种实施方式中,所述隔离层的材料为聚乙烯(polyethylene,简称PE)。通过将PE膜粘贴在废料区A的表面,来实现对所述废料区进行表面绝缘处理。
将所述隔离层通过粘贴的方式贴附于所述废料区的正面和反面。
电镀后,若需要回收PE膜,只要将PE膜从废料区A上剥落。
本申请提供的端子料带的电镀方法,通过将端子料带划分为从所述端子料带边缘向中心区域依次分布的废料区、接触区及非接触区,且对所述废料区进行表面绝缘处理,以使所述废料区失去金属属性,这样在贵金属电解液中电镀的过程中,经过绝缘处理的所述废料区无法沉积贵金属,即贵金属无法附着在废料区,能够减少贵金属的用量,从而大程度降低端子料带的成本。
附图说明
为了更清楚地说明本发明的技术方案,下面将对实施方式中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以如这些附图获得其他的附图。
图1是本申请一种实施方式中的端子料带的电镀方法中所使用的端子料带的示意图。
图2是将图1所示的端子料带置入贵金属电解液的示意图。
具体实施方式
下面将结合本发明实施方式中的附图,对本发明实施方式中的技术方案进行清楚、完整地描述。
本申请实施例提供一种端子料带的电镀方法,用于对端子料带电镀贵金属,贵金属为铂系金属,例如:铑、钌、钯等。通过电镀贵金属,能够提升端子抗电解及抗腐蚀能力,端子使用在电连接器中,能够提升电连接器的使用寿命。对端子料带进行贵金属电镀的过程需要使用浸镀的方式,将端子料带浸入贵金属电解液体中。
本发明实施例提供的端子料带的电镀方法包括如下步骤:
请参阅图1,将端子料带100划分为从所述端子料带100的边缘向中心区域依次分布的废料区A、接触区B及非接触区C,所述接触区B和所述非接触区C设置端子101;当端子料带100应用于实际产品(例如连接器)中时,端子料带100之废料区A将被切除,保留接触区B和非接触区C,因此,在电镀贵金属的过程中,若能针对接触区B和非接触区C电镀,则会节约贵金属的消耗量。
本申请通过对所述废料区A进行表面绝缘处理,以使所述废料区A失去金属属性,从而使得废料区A即使被浸入贵金属电解液,也无法将贵金属电镀在其上。
请参阅图2,将所述端子料带100浸入贵金属电解液200中,电镀所述端子料带100,电镀过程中,经过绝缘处理的所述废料区A无法沉积贵金属。
一种实施方式中,通过在所述废料区A表面设置隔离层的方式对所述废料区进行表面绝缘处理,电镀后,将所述隔离层从所述废料区A上除去。其它实施方式中,也可以通过其它化学处理的方式,改变废料区A的金属特性,使得废料区A无法附着贵金属。
一种实施方式中,所述隔离层为蜡。蜡的厚度满足可以遮羞废料区A全部面积即可。
一种实施方式中,在所述废料区A设置以蜡为介质的隔离层的方法包括如下步骤:
对端子料带100进行清洗除油。
预热清洗后所所述端子料带100。具体而言,使用有机溶剂对所述端子料带100进行清洗除油。
除油后,将所述端子料带100置于60-70℃的烘箱中进行预热。
预热后,对所述端子料带100的所述废料区A进行蜡剂浸渍。对所述端子料带100的所述废料区A进行蜡剂浸渍的过程在200-220℃的蜡槽中进行。对所述端子料带100的所述废料区A进行蜡剂浸渍的过程根据所述隔离层的厚度的需要进行多次操作。
经过蜡剂浸渍之镀蜡工艺后,为保证接触区B和非接触区C在电镀贵金属的过程中不受影响,需要清洁所述接触区B和所述非接触区C,以清除蜡剂残留。
具体而言,一种实施方式中,将所述隔离层从所述废料区A上除去的方法包括:用开水烫熔蜡剂进行回收,用水溶性清洗剂对所述端子料带100进行清洗处理。
另一种实施方式中,所述隔离层的材料为聚乙烯(polyethylene,简称PE)。通过将PE膜粘贴在废料区A的表面,来实现对所述废料区进行表面绝缘处理。
一种实施方式中,所述隔离层通过粘贴的方式贴附于所述废料区A的正面和反面。电镀后,若需要回收PE膜,只要将PE膜从废料区A上剥落。
本申请提供的端子料带100的电镀方法,通过将端子料带100划分为从所述端子料带100边缘向中心区域依次分布的废料区A、接触区B及非接触区C,且对所述废料区A进行表面绝缘处理,以使所述废料区A失去金属属性,这样在贵金属电解液中电镀的过程中,经过绝缘处理的所述废料区A无法沉积贵金属,即贵金属无法附着在废料区A,能够减少贵金属的用量,从而大程度降低端子料带100的成本。

Claims (11)

  1. 一种端子料带的电镀方法,其特征在于,包括:
    将端子料带划分为从所述端子料带边缘向中心区域依次分布的废料区、接触区及非接触区,所述接触区和所述非接触区设置端子;
    对所述废料区进行表面绝缘处理,以使所述废料区失去金属属性;
    将所述端子料带浸入贵金属电解液中,电镀所述端子料带,电镀过程中,经过绝缘处理的所述废料区无法沉积贵金属。
  2. 如权利要求1所述的端子料带的电镀方法,其特征在于,通过在所述废料区表面设置隔离层的方式对所述废料区进行表面绝缘处理,电镀后,将所述隔离层从所述废料区上除去。
  3. 如权利要求2所述的端子料带的电镀方法,其特征在于,所述隔离层为蜡。
  4. 如权利要求3所述的端子料带的电镀方法,其特征在于,在所述废料区设置隔离层的方法包括:
    对端子料带进行清洗除油;
    预热清洗后所所述端子料带;
    对所述端子料带的所述废料区进行蜡剂浸渍;及
    清洁所述接触区和所述非接触区,以清除蜡剂残留。
  5. 如权利要求4所述的端子料带的电镀方法,其特征在于,使用有机溶剂对所述端子料带进行清洗除油。
  6. 如权利要求4所述的端子料带的电镀方法,其特征在于,将所述端子料带置于60-70℃的烘箱中进行预热。
  7. 如权利要求4所述的端子料带的电镀方法,其特征在于,对所述端子料带的所述废料区进行蜡剂浸渍的过程在200-220℃的蜡槽中进行。
  8. 如权利要7所述的端子料带的电镀方法,其特征在于,对所述端子料带的所述废料区进行蜡剂浸渍的过程根据所述隔离层的厚度的需要进行多次操作。
  9. 如权利要求3所述的端子料带的电镀方法,其特征在于,将所述隔离层从所述废料区上除去的方法包括:用开水烫熔蜡剂进行回收,用水溶性清洗剂对所述端子料带进行清洗处理。
  10. 如权利要求2所述的端子料带的电镀方法,其特征在于,所述隔离层的材料为聚乙烯。
  11. 如权利要求10所述的端子料带的电镀方法,其特征在于,所述隔离层通过粘贴的方式贴附于所述废料区的正面和反面。
PCT/CN2017/082391 2017-03-13 2017-04-28 端子料带的电镀方法 WO2018166047A1 (zh)

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