WO2019006613A1 - 一种钝化剂、金属镀件钝化处理方法和金属工件 - Google Patents

一种钝化剂、金属镀件钝化处理方法和金属工件 Download PDF

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Publication number
WO2019006613A1
WO2019006613A1 PCT/CN2017/091548 CN2017091548W WO2019006613A1 WO 2019006613 A1 WO2019006613 A1 WO 2019006613A1 CN 2017091548 W CN2017091548 W CN 2017091548W WO 2019006613 A1 WO2019006613 A1 WO 2019006613A1
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parts
passivating agent
metal
passivation
weight
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PCT/CN2017/091548
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English (en)
French (fr)
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刘国平
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深圳市宏昌发科技有限公司
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Priority to CN201780092854.9A priority Critical patent/CN110809639A/zh
Priority to PCT/CN2017/091548 priority patent/WO2019006613A1/zh
Publication of WO2019006613A1 publication Critical patent/WO2019006613A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides

Definitions

  • the present invention relates to the field of surface treatment technology, and in particular, to a passivating agent, a metal plated member passivation treatment method, and a metal workpiece.
  • the surface treatment technology of the workpiece is usually applied.
  • steel and its electroplated parts, copper and its surface treatment methods for electroplated parts go deep into all walks of life. Passivation is a common surface treatment method.
  • the conventional passivation methods include boiling water method, dichromate method, metal salt method, etc.
  • the boiling water passivation method is non-polluting, it is prone to powder frost, affecting the quality appearance and the bonding force between the paint layer and the substrate. And energy consumption is large.
  • the dichromate method has been polluted by the environment and has been eliminated by the existing market.
  • the metal salt method has a variety of ions, and there are some impurity ions, and the impurity ions have a certain interference with the passivation treatment.
  • the protective layer produced by the conventional passivation treatment is not dense, is not resistant to temperature, and has poor corrosion resistance.
  • a passivating agent having strong bonding strength, temperature resistance, corrosion resistance, a passivation treatment method for a metal plating member, and a metal workpiece are provided.
  • a passivating agent is 8000 parts by weight, and the passivating agent comprises the following components in parts by weight: 10 0-300 parts of silicate, 1-5 parts of boric acid, 2-10 parts of fluorinated Potassium, 1-10 parts of benzotriazole, 0.1-1 part of amphoteric imidazoline and the balance of distilled water.
  • a method for passivating a metal plated part comprising the steps of: preparing a passivating agent as described above, treating the metal plated part with a passivating agent, and controlling the pH of the solution to be in the range of 9.0-12, After the predetermined time, a passivation protective film is formed on the surface of the metal plating.
  • a metal workpiece having a metal plating film on the surface thereof, wherein the metal plating film is formed with a passivation protective film according to the metal plating member passivation treatment method as described above.
  • the protective film layer formed by the above passivating agent has strong passivation property to the metal and the plating layer, and has the properties of anti-oxidation, anti-sulfurization and blackening, and forms a colorless and transparent strong protective film on the surface of the plating layer after drying, and is resistant to corrosion.
  • the properties of anti-oxidation, anti-vulcanization and blackening are greatly enhanced. It can be widely used in various metal plating parts, especially for galvanizing layer passivation. It is a better choice for anti-corrosion and anti-discoloration of coating surface.
  • the process of the above treatment method is easy to operate, and both dip coating and spray coating are possible.
  • the above passivating agent is a water-soluble antiseptic passivating substance.
  • This product is non-toxic, non-combustible, non-polluting and easy to use.
  • the protective film formed after the treatment is insoluble in water, has good resistance to vulcanization and moisture resistance, has good toughness of the film layer, and is bendable and deformable. After passivation treatment of the above passivating agent, the surface of the passivated metal plated part has improved gloss and hardness, and can be widely applied to various metal plated parts.
  • Embodiments of the present invention provide a passivating agent comprising a passivating agent, the passivating agent comprising the following components in a proportion by weight: in an amount of 8000 parts by weight: 100-300 parts of silicate , 1-5 parts of boric acid, 2-10 parts of potassium fluoride, 1-10 parts of benzotriazole, 0.1-1 part of amphoteric imidazoline and the balance of distilled water.
  • the silicate has a weight fraction of from 150 to 250 parts.
  • the parts by weight of boric acid are preferably 2-4 parts by weight.
  • the parts by weight of potassium fluoride is preferably 4-8 parts by weight.
  • the benzotriazole is preferably used in an amount of from 3 to 8 parts by weight.
  • the part by weight of the amphoteric imidazoline is preferably from 0.3 to 0.8 parts by weight.
  • the passivating agent is controlled in the range of 9.0-12 using ⁇ PH value.
  • silicate is the main component of the passivation film
  • benzotriazole and amphoteric imidazoline are adsorbed on the surface of the workpiece to insulate the contact of the air with the substrate.
  • Boric acid makes the film uniform, and potassium fluoride promotes the formation of a passivation film.
  • An embodiment of the present invention further provides a method for passivating a metal plated part, comprising the steps of: preparing a passivating agent as described above, treating the metal plated part with a passivating agent solution, and controlling the pH value of the solution. In the range of 9.0-12, after the predetermined time is processed, a passivation protective film is formed on the surface of the metal plating member, and then dried.
  • the metal plated parts are galvanized metal.
  • the metal plating member is treated with a passivating agent solution, including a dipping method, a spraying method or a brushing method, preferably a dipping method.
  • a passivating agent solution including a dipping method, a spraying method or a brushing method, preferably a dipping method.
  • the control temperature is preferably 25-35 ° C, and the treatment time is preferred. It is 2-4 minutes.
  • an embodiment of the present invention further provides a metal workpiece having a metal plating film on the surface thereof, for example, forming a plating layer by metal plating or electroless plating.
  • a passivation protective film is formed on the metal plating film in accordance with the metal plating member passivation treatment method as described above.
  • the processing object of the above metal plating member may be, but not limited to, a galvanized member.
  • the surface of the metal workpiece has a good protective effect, and the formed protective film has strong passivation property to the metal and the plating layer.
  • anti-oxidation, anti-sulfurization and blackening properties after drying, form a colorless and transparent solid protective film on the surface of the coating. Corrosion resistance, oxidation resistance, anti-sulfurization and blackening properties are greatly enhanced, and the surface of the coating is corrosion-resistant and resistant. The best choice for color change.
  • the process of the above treatment method is simple and easy to operate, and the dip coating can be used.
  • the above passivating agent is a water-soluble antiseptic passivating substance.
  • This product is non-toxic, non-combustible, environmentally friendly and easy to use.
  • the protective film formed after the treatment is insoluble in water, has good resistance to vulcanization and moisture resistance, has good toughness of the film layer, and can be bent and deformed.
  • passivation is also widely used in decorative coatings and corrosion-resistant coatings for hardware machinery, communication equipment, instruments, household appliances, lamps and other products.
  • composition range, the preparation method, and the use effect of the above-mentioned passivating agent are exemplified by a plurality of embodiments, and the metal workpieces of the following embodiments are all exemplified by a galvanized piece.
  • the components are mixed according to the following parts by weight (based on 8000 total weight fraction).
  • the passivating agent comprises the following components in parts by weight: 100 parts of sodium silicate, 1 part of boric acid, 2 parts of potassium fluoride, 1 part of benzotriazole, 0.1 part of amphoteric imidazoline and the balance of distilled water, stirred, uniformly mixed, and formulated into a passivating agent.
  • Passivation treatment method After the metal workpiece is coated, the metal plating member is immersed in the passivating agent solution, and the pH value of the passivating agent solution is controlled to be controlled by phosphoric acid or sodium hydroxide at a pH of 11 and a temperature of 25 ° C. After 5 minutes of treatment, a passivation protective film was formed on the surface of the metal plated member, and taken out and blown dry by a fan.
  • the metal plated part After treatment, the metal plated part has a bright surface and uniform color, and has no abnormalities such as peeling, black spots and cracks, and the neutral salt spray test is 40 hours or more.
  • the components are mixed according to the following parts by weight (based on 8000 total weight fraction).
  • the passivating agent comprises the following components in parts by weight: 150 parts of sodium silicate, 2 parts of boric acid, 4 parts of potassium fluoride, 4 parts of benzotriazole, 0.4 part of amphoteric imidazoline and the balance of distilled water, stirred, uniformly mixed, and formulated into a passivating agent.
  • Passivation treatment method After the metal workpiece is coated, the metal plating member is immersed in the passivating agent solution, and the pH value of the passivating agent solution is controlled to be controlled by phosphoric acid or sodium hydroxide at a pH of 11 and a temperature of 25 ° C. After 5 minutes of treatment, a passivation protective film was formed on the surface of the metal plated member, and taken out and blown dry by a fan.
  • the metal plated part After treatment, the metal plated part has a bright surface and uniform color, and has no abnormalities such as peeling, black spots and cracks, and the neutral salt spray test is more than 60 hours.
  • the components are mixed according to the following parts by weight (based on 8000 total weight fraction).
  • the passivating agent comprises the following components in parts by weight: 200 parts of sodium silicate, 3 parts of boric acid, 6 parts of potassium fluoride, 6 parts of benzotriazole, 0.6 part of amphoteric imidazoline and the balance of distilled water, stirred, uniformly mixed, and formulated into a passivating agent.
  • Passivation treatment method After the metal workpiece is coated, the metal plating member is immersed in the passivating agent solution, and the pH value of the passivating agent solution is controlled to be pH value of 11 at a temperature of 25 ° C with phosphoric acid or sodium hydroxide. After 4 minutes of treatment, a passivation protective film was formed on the surface of the metal plated member, and taken out and blown dry by a fan.
  • the metal plated part After treatment, the metal plated part has a bright surface and uniform color, and has no abnormalities such as peeling, black spots and cracks, and the neutral salt spray test is more than 90 hours.
  • the components are mixed according to the following parts by weight (based on 8000 total weight fraction).
  • the passivating agent comprises the following components in parts by weight: 250 parts of sodium silicate, 4 parts of boric acid, 8 parts of potassium fluoride, 8 parts of benzotriazole, 0.8 part of amphoteric imidazoline and the balance of distilled water, stirred, uniformly mixed, and formulated into a passivating agent.
  • Passivation treatment method After the metal workpiece is coated, the metal plating member is immersed in the passivating agent solution, and the pH value of the passivating agent solution is controlled to be controlled by phosphoric acid or sodium hydroxide at a pH of 11 and a temperature of 25 ° C. After 3 minutes of treatment, a passivation protective film was formed on the surface of the metal plated member, and taken out and blown dry by a fan.
  • the metal plated part After treatment, the metal plated part has a bright surface, uniform color, no abnormalities such as peeling, black spots and cracks, and the neutral salt spray test is more than 120 hours.
  • the components are mixed according to the following parts by weight (based on 8000 total weight fraction).
  • the passivating agent comprises the following components in parts by weight: 300 parts of sodium silicate, 5 parts of boric acid, 10 parts of potassium fluoride, 10 parts of benzotriazole, 1 part of amphoteric imidazoline and the balance of distilled water, stirred, uniformly mixed, and formulated into a passivating agent.
  • Passivation treatment method After the metal workpiece is coated, the metal plating member is immersed in the passivation solution to control the passivation
  • the pH of the solution is controlled by phosphoric acid or sodium hydroxide at a pH of 11 and a temperature of 25 ° C.
  • a passivation protective film is formed on the surface of the metal plated member, and taken out and blown dry by a fan.
  • the metal plated part After treatment, the metal plated part has a bright surface, uniform color, and no abnormalities such as peeling, black spots, cracks, and the like.

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  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
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Abstract

一种钝化剂及金属镀件钝化处理方法，以8000重量份计，该钝化剂包括按照重量份数配比的下列成分：100-300份硅酸盐，1-5份硼酸，2-10份氟化钾，1-10份苯并三氮唑、0.1-1份两性咪唑啉和余量的蒸馏水。本品不含铬，克服了铬酸盐钝化技术的毒性大，不环保，配置工艺复杂，成本高等缺点，可实现电镀锌及锌铁合金的清洁生产，该钝化液钝化工艺稳定可靠，可广泛应用于各种金属镀件，尤其对镀锌层钝化更佳。

Description

一种钝化剂、 金属镀件钝化处理方法和金属工件 技术领域
[0001] 本发明涉及表面处理技术领域， 具体涉及一种钝化剂、 金属镀件钝化处理方法 和金属工件。
背景技术
[0002] 为提高产品表面性能或者外观， 通常对工件表面处理技术。 例如， 钢铁及其电 镀件， 铜及其电镀件的表面处理方法深入各行各业中。 钝化处理就是一种常见 的表面处理方法。
[0003] 传统的钝化方法有沸水法、 重铬酸盐法、 金属盐法等， 沸水钝化法虽然无污染 ， 但易出现粉霜现象， 影响质量外观与漆层和基体的结合力， 且能源清耗大。 重铬酸盐法对环境污染大， 已经被现有市场淘汰。 金属盐法有多种离子， 存在 一些杂质离子， 杂质离子对钝化处理具有一定的干扰性。 而且， 传统的钝化剂 处理后产生的保护层不致密， 不耐温， 耐蚀性差。
技术问题
[0004] 有鉴于此， 提供一种结合力强、 耐温、 耐蚀的钝化剂、 金属镀件钝化处理方法 和金属工件。
问题的解决方案
技术解决方案
[0005] 一种钝化剂以 8000重量份计， 该钝化剂包括按照重量份数配比的下列成分： 10 0-300份硅酸盐， 1-5份硼酸， 2-10份氟化钾， 1-10份苯并三氮唑、 0.1-1份两性咪 唑啉和余量的蒸馏水。
[0006] 一种金属镀件钝化处理方法， 包括如下步骤： 配制如上所述的钝化剂， 用钝化 剂对金属镀件进行处理， 控制溶液的 PH值在 9.0-12范围内， 处理预定吋间后， 即 在金属镀件表面形成钝化保护膜。
[0007] 以及， 一种金属工件， 所述金属工件表面具有金属镀膜， 所述金属镀膜上按照 如上所述的金属镀件钝化处理方法形成有钝化保护膜。 发明的有益效果
有益效果
[0008] 上述钝化剂形成的保护膜层对金属及镀层具有很强的钝化性和抗氧化、 抗硫化 变黑等性能， 干燥后在镀层表面形成无色透明的坚固保护膜， 耐蚀性， 抗氧化 性， 抗硫化变黑等性能都大大增强， 可广泛应用于各种金属镀件， 尤其对镀锌 层钝化更佳， 是镀层表面防腐蚀， 防变色的较佳选择。 上述处理方法的工艺易 操作， 浸涂、 喷刷均可。 上述钝化剂是水溶性防腐钝化物质。 本品无毒、 不燃 、 不污染环境、 使用方便。 处理后形成的保护膜不溶于水， 具有良好的抗硫化 、 抗潮湿性， 膜层韧性好， 可弯曲变形。 经过上述钝化剂的钝化处理后， 钝化 后的金属镀件表面光泽和硬度提高， 可广泛应用于各种金属镀件。
本发明的实施方式
[0009] 以下将结合具体实施例对本发明进行详细说明。
[0010] 本发明实施例提供一种钝化剂， 其包括一种钝化剂， 以 8000重量份计， 该钝化 剂包括按照重量份数配比的下列成分： 100-300份硅酸盐， 1-5份硼酸， 2-10份氟 化钾， 1-10份苯并三氮唑、 0.1-1份两性咪唑啉和余量的蒸馏水。
[0011] 优选地， 所述硅酸盐的重量份数为 150-250份。 硼酸的重量份数优选为 2-4份。
氟化钾的重量份数优选为 4-8份。 苯并三氮唑的重量份数优选为 3-8份。 两性咪唑 啉的重量份数优选为 0.3-0.8份
[0012] 钝化剂在使用吋 PH值控制在 9.0-12范围。 在钝化剂中， 硅酸盐为钝化膜的主要 成分， 苯并三氮唑、 两性咪唑啉吸附在工件表面， 隔绝空气与基材的接触。 硼 酸使膜层均匀， 氟化钾可以促进钝化膜生成。
[0013] 本发明实施例还提供一种金属镀件钝化处理方法， 其包括如下步骤： 配制如上 所述的钝化剂， 用钝化剂溶液对金属镀件进行处理， 控制溶液的 PH值在 9.0-12范 围内， 处理预定吋间后， 即在金属镀件表面形成钝化保护膜， 再吹干即可。 金 属镀件为镀锌金属。
[0014] 其中， 用钝化剂溶液对金属镀件进行处理包括浸渍法、 喷淋法或刷洗法， 优选 为浸渍法。 在钝化剂溶液处理过程中， 控制温度优选为 25-35°C， 处理吋间优选 为 2-4分钟。
[0015] 另外， 本发明实施例还提供一种金属工件， 所述金属工件表面具有金属镀膜， 例如通过金属电镀、 化学镀后形成镀层。 金属镀膜上按照如上所述的金属镀件 钝化处理方法形成有钝化保护膜。
[0016] 以上金属镀件的处理对象可以是但不限于镀锌件， 经过上述处理表面处理后， 金属工件表面有良好的保护作用， 形成的保护膜对金属及镀层具有很强的钝化 性和抗氧化、 抗硫化变黑等性能， 干燥后在镀层表面形成无色透明的坚固保护 膜， 耐蚀性， 抗氧化性， 抗硫化变黑等性能都大大增强， 是镀层表面防腐蚀， 防变色的最佳选择。 上述处理方法的工艺简单易操作， 浸涂喷刷均可。 上述钝 化剂是水溶性防腐钝化物质。 本品无毒、 不燃、 不污染环境、 使用方便。 处理 后形成的保护膜不溶于水， 具有良好的抗硫化、 抗潮湿性， 膜层韧性好， 可弯 曲变形。 钝化剂除应用于金属工件外， 同吋也广泛应用于五金机械、 通讯器材 、 仪表、 家用电器、 灯具等产品的装饰性镀层和防腐蚀性镀层。
[0017] 以下通过多个实施例来举例说明上述钝化剂的组成范围、 配制方法以及使用效 果等方面， 以下实施例金属工件均以镀锌件为例。
[0018] 实施例 1
[0019] 按照下列重量份数混合各成分 (以 8000总重量分数计)该钝化剂包括按照重量份 数配比的下列成分： 100份硅酸钠， 1份硼酸， 2份氟化钾， 1份苯并三氮唑、 0.1 份两性咪唑啉和余量的蒸馏水， 搅拌， 混合均匀， 配制成钝化剂。
[0020] 钝化处理方法： 金属工件镀膜后， 将金属镀件浸入于钝化剂溶液中， 控制钝化 剂溶液的 PH值以磷酸或氢氧化钠控制 PH值在 11， 温度为 25°C， 处理 5分钟后， 即在金属镀件表面形成钝化保护膜， 取出以风机吹干。
[0021] 经过处理后的金属镀件外观表面光亮、 色泽均匀， 无脱皮、 黑斑、 裂痕等异常 ， 中性盐雾测试 40小吋以上。
[0022] 实施例 2
[0023] 按照下列重量份数混合各成分 (以 8000总重量分数计)该钝化剂包括按照重量份 数配比的下列成分： 150份硅酸钠， 2份硼酸， 4份氟化钾， 4份苯并三氮唑、 0.4 份两性咪唑啉和余量的蒸馏水， 搅拌， 混合均匀， 配制成钝化剂。 [0024] 钝化处理方法： 金属工件镀膜后， 将金属镀件浸入于钝化剂溶液中， 控制钝化 剂溶液的 PH值以磷酸或氢氧化钠控制 PH值在 11， 温度为 25°C， 处理 5分钟后， 即在金属镀件表面形成钝化保护膜， 取出以风机吹干。
[0025] 经过处理后的金属镀件外观表面光亮、 色泽均匀， 无脱皮、 黑斑、 裂痕等异常 ， 中性盐雾测试 60小吋以上。
[0026] 实施例 3
[0027] 按照下列重量份数混合各成分 (以 8000总重量分数计)该钝化剂包括按照重量份 数配比的下列成分： 200份硅酸钠， 3份硼酸， 6份氟化钾， 6份苯并三氮唑、 0.6 份两性咪唑啉和余量的蒸馏水， 搅拌， 混合均匀， 配制成钝化剂。
[0028] 钝化处理方法： 金属工件镀膜后， 将金属镀件浸入于钝化剂溶液中， 控制钝化 剂溶液的 PH值以磷酸或氢氧化钠控制 PH值在 11， 温度为 25°C， 处理 4分钟后， 即在金属镀件表面形成钝化保护膜， 取出以风机吹干。
[0029] 经过处理后的金属镀件外观表面光亮、 色泽均匀， 无脱皮、 黑斑、 裂痕等异常 ， 中性盐雾测试 90小吋以上。
[0030] 实施例 4
[0031] 按照下列重量份数混合各成分 (以 8000总重量分数计)该钝化剂包括按照重量份 数配比的下列成分： 250份硅酸钠， 4份硼酸， 8份氟化钾， 8份苯并三氮唑、 0.8 份两性咪唑啉和余量的蒸馏水， 搅拌， 混合均匀， 配制成钝化剂。
[0032] 钝化处理方法： 金属工件镀膜后， 将金属镀件浸入于钝化剂溶液中， 控制钝化 剂溶液的 PH值以磷酸或氢氧化钠控制 PH值在 11， 温度为 25°C， 处理 3分钟后， 即在金属镀件表面形成钝化保护膜， 取出以风机吹干。
[0033] 经过处理后的金属镀件外观表面光亮、 色泽均匀， 无脱皮、 黑斑、 裂痕等异常 ， 中性盐雾测试 120小吋以上。
[0034] 实施例 5
[0035] 按照下列重量份数混合各成分 (以 8000总重量分数计)该钝化剂包括按照重量份 数配比的下列成分： 300份硅酸钠， 5份硼酸， 10份氟化钾， 10份苯并三氮唑、 1 份两性咪唑啉和余量的蒸馏水， 搅拌， 混合均匀， 配制成钝化剂。
[0036] 钝化处理方法： 金属工件镀膜后， 将金属镀件浸入于钝化剂溶液中， 控制钝化 剂溶液的 PH值以磷酸或氢氧化钠控制 PH值在 11， 温度为 25°C， 处理 3分钟后， 即在金属镀件表面形成钝化保护膜， 取出以风机吹干。
[0037] 经过处理后的金属镀件外观表面光亮、 色泽均匀， 无脱皮、 黑斑、 裂痕等异常
， 中性盐雾测试 120小吋以上。
[0038] 需要说明的是， 本发明并不局限于上述实施方式， 根据本发明的创造精神， 本 领域技术人员还可以做出其他变化， 这些依据本发明的创造精神所做的变化， 都应包含在本发明所要求保护的范围之内。

Claims

权利要求书
[权利要求 1] 一种钝化剂， 其特征在于以 8000重量份计， 该钝化剂包括按照重量份 数配比的下列成分： 100-300份硅酸盐，
1-5份硼酸， 2-10份氟化钾， 1-10份苯并三氮唑、 0.1-1份两性咪唑啉和 余量的蒸馏水。
[权利要求 2] 如权利要求 1所述的钝化剂， 其特征在于， 所述硅酸盐为硅酸钠或石 j
酸钾或混合物， 重量份数为 150-250份。
[权利要求 3] 如权利要求 1所述的钝化剂， 其特征在于， 所述硼酸的重量份数为 2-4 份。
[权利要求 4] 如权利要求 1所述的钝化剂， 其特征在于， 所述氟化钾的重量份数为 4
-8份。
[权利要求 5] 如权利要求 1所述的钝化剂， 其特征在于， 所述苯并三氮唑的重量份 数为 3-8份。
[权利要求 6] 如权利要求 1所述的钝化剂， 其特征在于， 所述两性咪唑啉的重量份 数为 0.3-0.8份。
[权利要求 7] 如权利要求 1所述的钝化剂， 其特征在于， 所述 PH值为 9.0-12， 并以 磷酸或氢氧化钠调节， 所述钝化剂温度为 20-40°C。
[权利要求 8] 一种金属镀件钝化处理方法， 其特征在于， 包括如下步骤： 配制如权 利要求 1-7任一项所述的钝化剂； 用钝化剂对金属镀件进行处理， 控 制溶液的 PH值在 9.0-12范围内， 处理预定吋间后， 即在金属镀件表面 形成钝化保护膜。
[权利要求 9] 如权利要求 7所述的金属镀件钝化处理方法， 其特征在于， 所述用钝 化剂溶液对金属镀件进行处理包括浸渍法、 喷淋法或刷洗法， 在钝化 剂溶液处理过程中， 控制温度为 20-40°C， 处理吋间为 3-5分钟。
[权利要求 10] 一种金属工件， 所述金属工件表面具有金属镀膜， 其特征在于， 所述 金属镀膜上按照如权利要求 8所述的金属镀件钝化处理方法形成有钝 化保护膜。
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