CN105803435A - 一种环保型钢制飞轮的全无铬钝化工艺 - Google Patents

一种环保型钢制飞轮的全无铬钝化工艺 Download PDF

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CN105803435A
CN105803435A CN201610294277.9A CN201610294277A CN105803435A CN 105803435 A CN105803435 A CN 105803435A CN 201610294277 A CN201610294277 A CN 201610294277A CN 105803435 A CN105803435 A CN 105803435A
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潘华锋
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TAICANG WUFENG METAL PRODUCT Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical 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
    • C23C22/02Chemical 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 non-aqueous solutions
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical 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
    • C23C22/78Pretreatment of the material to be coated
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08Iron or steel
    • C23G1/086Iron or steel solutions containing HF
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2222/00Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
    • C23C2222/20Use of solutions containing silanes

Abstract

本发明公开了一种环保型钢制飞轮的全无铬钝化工艺,包括如下步骤:(1)表面酸洗处理:将钢制飞轮浸渍到40‑60℃的酸洗液中,浸渍20‑25min,去除飞轮表面的油脂;(2)净水冲洗:将步骤(1)酸洗处理后的钢制飞轮用清洗冲洗干净,然后自然风干;(3)浸渍钝化液:将步骤(2)处理后的钢制飞轮浸渍到树脂基全无铬钝化液中,浸渍5‑10s后快速取出;所述树脂基全无铬钝化液的配方为:硅酸盐35‑40g/L、氨基甲酸丙酯树脂25‑30g/L、硅烷偶联剂8‑14g/L、成膜剂2‑5g/L;(4)干燥成型:将步骤(3)处理后的钢制飞轮进行烘干,即得到附着在钢制飞轮表面的全无铬钝化膜。通过上述方式,本发明能够在钢制飞轮表面获得附着力强的全无铬钝化膜,并且该钝化膜具有较高的耐腐蚀性能。

Description

一种环保型钢制飞轮的全无铬钝化工艺
技术领域
本发明涉及自行车零部件钝化技术领域,特别是涉及一种环保型钢制飞轮的全无铬钝化工艺。
背景技术
飞轮是手闸式自行车不可少的部件,飞轮以内螺纹旋拧固定在后轴的右端,与链轮保持同一平面,并通过链条与链轮相连接,构成自行车的驱动系统。从结构上可分为单级飞轮和多级飞轮两大类。由于飞轮基本上工作与户外,部分环境下飞轮还有可能在比较恶劣的环境下工作,比如自行车在雨雪的天气下工作时就要求自行车飞轮在潮湿或寒冷的环境下依然保持其主体的工作性能,这就要求飞轮具有耐潮耐腐蚀性能,为了提高飞轮的耐潮耐腐蚀性能,常常在钢制飞轮外表面镀附耐腐蚀性钝化膜,而现有钝化膜主要采用铬酸盐钝化工艺获得,铬酸盐钝化具有很强的致癌性和环境污染性。随着人们环保意识的增强,以及近年来各国制定法规严格限制铬酸盐的使用,因此在钢制飞轮表面采用铬酸盐钝化获得钝化膜的工艺最终被禁止已成为必然趋势,随之全无铬钝化技术营运而生,但是现有的全无铬钝化工艺获得的钝化膜附着力差,耐腐蚀性能也较铬酸盐钝化膜差。
发明内容
本发明主要解决的技术问题是:针对现有技术的不足,提供一种环保型钢制飞轮的全无铬钝化工艺,能够在钢制飞轮表面获得附着力强的全无铬钝化膜,并且该钝化膜具有较高的耐腐蚀性能。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种环保型钢制飞轮的全无铬钝化工艺,包括如下步骤:
(1)表面酸洗处理:配置酸洗液,将钢制飞轮浸渍到40-60℃的酸洗液中,浸渍20-25min,去除飞轮表面的油脂;
(2)净水冲洗:将步骤(1)酸洗处理后的钢制飞轮用清洗冲洗干净,然后自然风干;
(3)浸渍钝化液:将步骤(2)处理后的钢制飞轮浸渍到树脂基全无铬钝化液中,浸渍5-10s后快速取出;所述树脂基全无铬钝化液的配方为:硅酸盐35-40g/L、氨基甲酸丙酯树脂25-30g/L、硅烷偶联剂8-14g/L、成膜剂2-5g/L;
(4)干燥成型:将步骤(3)处理后的钢制飞轮进行烘干,即得到附着在钢制飞轮表面的全无铬钝化膜。
在本发明一个较佳实施例中,所述酸洗液的配方为:硝酸20-30g/L、氢氟酸5-10g/L、磷酸7-12g/L、三乙醇胺2-5g/L、乙醇1-4g/L。
在本发明一个较佳实施例中,步骤(3)中,所述全无铬钝化液的温度为60-80℃。
在本发明一个较佳实施例中,所述全无铬钝化膜的厚度为15-20μm。
本发明的有益效果是:采用树脂基全无铬钝化液对钢制飞轮表面进行钝化,用过严格控制钝化前酸洗工艺、优化钝化液配方、控制钝化时间等,使飞轮表面获得附着力强的全无铬钝化膜,并且该钝化膜具有较高的耐腐蚀性能。
具体实施方式
下面对本发明的较佳实施例进行详细阐述,以使本发明的优点和特征能更易于被本领域技术人员理解,从而对本发明的保护范围做出更为清楚明确的界定。
本发明实施例包括:
实施例一:
一种环保型钢制飞轮的全无铬钝化工艺,包括如下步骤:
(1)表面酸洗处理:配置如下配方量的酸洗液:硝酸20g/L、氢氟酸7g/L、磷酸10g/L、三乙醇胺2g/L、乙醇2g/L;
将钢制飞轮浸渍到40℃的上述配方量的酸洗液中,浸渍20min,去除飞轮表面的油脂;
(2)净水冲洗:将步骤(1)酸洗处理后的钢制飞轮用清洗冲洗干净,然后自然风干;
(3)浸渍钝化液:将步骤(2)处理后的钢制飞轮浸渍到温度为60℃的树脂基全无铬钝化液中,浸渍5s后快速取出;所述树脂基全无铬钝化液的配方为:硅酸盐35g/L、氨基甲酸丙酯树脂30g/L、硅烷偶联剂9g/L、成膜剂2g/L;
(4)干燥成型:将步骤(3)处理后的钢制飞轮进行烘干,即得到附着在钢制飞轮表面的全无铬钝化膜,所述全无铬钝化膜的厚度为15μm。
实施例二:
一种环保型钢制飞轮的全无铬钝化工艺,包括如下步骤:
(1)表面酸洗处理:配置如下配方量的酸洗液:硝酸25g/L、氢氟酸5g/L、磷酸12g/L、三乙醇胺5g/L、乙醇1g/L;
将钢制飞轮浸渍到50℃的上述配方量的酸洗液中,浸渍22min,去除飞轮表面的油脂;
(2)净水冲洗:将步骤(1)酸洗处理后的钢制飞轮用清洗冲洗干净,然后自然风干;
(3)浸渍钝化液:将步骤(2)处理后的钢制飞轮浸渍到温度为70℃的树脂基全无铬钝化液中,浸渍8s后快速取出;所述树脂基全无铬钝化液的配方为:硅酸盐36g/L、氨基甲酸丙酯树脂25g/L、硅烷偶联剂8g/L、成膜剂4g/L;
(4)干燥成型:将步骤(3)处理后的钢制飞轮进行烘干,即得到附着在钢制飞轮表面的全无铬钝化膜,所述全无铬钝化膜的厚度为18μm。
实施例三:
一种环保型钢制飞轮的全无铬钝化工艺,包括如下步骤:
(1)表面酸洗处理:配置如下配方量的酸洗液:硝酸30g/L、氢氟酸10g/L、磷酸7g/L、三乙醇胺4g/L、乙醇4g/L;
将钢制飞轮浸渍到60℃的上述配方量的酸洗液中,浸渍25min,去除飞轮表面的油脂;
(2)净水冲洗:将步骤(1)酸洗处理后的钢制飞轮用清洗冲洗干净,然后自然风干;
(3)浸渍钝化液:将步骤(2)处理后的钢制飞轮浸渍到温度为80℃的树脂基全无铬钝化液中,浸渍8s后快速取出;所述树脂基全无铬钝化液的配方为:硅酸盐40g/L、氨基甲酸丙酯树脂27g/L、硅烷偶联剂14g/L、成膜剂5g/L;
(4)干燥成型:将步骤(3)处理后的钢制飞轮进行烘干,即得到附着在钢制飞轮表面的全无铬钝化膜,所述全无铬钝化膜的厚度为20μm。
本发明揭示了一种环保型钢制飞轮的全无铬钝化工艺,采用树脂基全无铬钝化液对钢制飞轮表面进行钝化,用过严格控制钝化前酸洗工艺、优化钝化液配方、控制钝化时间等,使飞轮表面获得附着力强的全无铬钝化膜,并且该钝化膜具有较高的耐腐蚀性能。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (4)

1.一种环保型钢制飞轮的全无铬钝化工艺,其特征在于,包括如下步骤:
(1)表面酸洗处理:配置酸洗液,将钢制飞轮浸渍到40-60℃的酸洗液中,浸渍20-25min,去除飞轮表面的油脂;
(2)净水冲洗:将步骤(1)酸洗处理后的钢制飞轮用清洗冲洗干净,然后自然风干;
(3)浸渍钝化液:将步骤(2)处理后的钢制飞轮浸渍到树脂基全无铬钝化液中,浸渍5-10s后快速取出;所述树脂基全无铬钝化液的配方为:硅酸盐35-40g/L、氨基甲酸丙酯树脂25-30g/L、硅烷偶联剂8-14g/L、成膜剂2-5g/L;
(4)干燥成型:将步骤(3)处理后的钢制飞轮进行烘干,即得到附着在钢制飞轮表面的全无铬钝化膜。
2.根据权利要求1所述的环保型钢制飞轮的全无铬钝化工艺,其特征在于,所述酸洗液的配方为:硝酸20-30g/L、氢氟酸5-10g/L、磷酸7-12g/L、三乙醇胺2-5g/L、乙醇1-4g/L。
3.根据权利要求1所述的环保型钢制飞轮的全无铬钝化工艺,其特征在于,步骤(3)中,所述全无铬钝化液的温度为60-80℃。
4.根据权利要求1所述的环保型钢制飞轮的全无铬钝化工艺,其特征在于,所述全无铬钝化膜的厚度为15-20μm。
CN201610294277.9A 2016-05-03 2016-05-03 一种环保型钢制飞轮的全无铬钝化工艺 Pending CN105803435A (zh)

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Application publication date: 20160727