CN112442687A - 一种铜合金恒温氧化湖蓝色着色的方法 - Google Patents

一种铜合金恒温氧化湖蓝色着色的方法 Download PDF

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CN112442687A
CN112442687A CN202011376207.0A CN202011376207A CN112442687A CN 112442687 A CN112442687 A CN 112442687A CN 202011376207 A CN202011376207 A CN 202011376207A CN 112442687 A CN112442687 A CN 112442687A
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王宏
袁贵川
龚轩
熊晨红
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China Aviation Industry Standard Parts Manufacturing Co Ltd
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    • 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
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    • 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
    • C23C22/05Chemical 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
    • C23C22/06Chemical 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
    • C23C22/48Chemical 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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
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    • 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
    • C23C22/73Chemical 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 characterised by the process
    • 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
    • C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F3/00Brightening metals by chemical means
    • C23F3/04Heavy metals
    • C23F3/06Heavy metals with acidic solutions

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Abstract

本发明公开了一种铜合金恒温氧化湖蓝色着色的方法,其特征在于,包括以下步骤:(1)配制着色液:通过碳酸铅、醋酸和硫代硫酸钠搅拌溶解并静置得到着色液;(2)铜合金预处理:先将铜合金置于除油液中进行超声波除油,再配制抛光液并将铜合金化学抛光5‑15s后取出洗净,然后借助硫酸活化液活化30‑60s;(3)将步骤(1)中配制好的着色液加热至80℃且保持恒温,将步骤(2)中处理好的铜合金浸入着色液中缓慢搅动,浸泡15‑20s即可实现湖蓝色着色,然后将铜合金取出,用清水洗净吹干,通过光蜡保护即可。本发明操作便捷、高效可靠、效果良好、配方简单,适合铜合金恒温氧化湖蓝色着色的推广使用。

Description

一种铜合金恒温氧化湖蓝色着色的方法
技术领域
本发明属于表面处理技术领域,具体来说涉及一种铜合金恒温氧化湖蓝色着色的方法。
背景技术
金属铜及其合金着色是近年来得以发展的一种新型的表面处理工艺,其基本原理为,利用化学氧化法或阳极电解法及阴极电解法在铜及其合金表面形成一层极薄的化合物,由此产生各种深浅的色彩,包括黄色、橙色、红色、紫色、蓝色、绿色、黑色、青色、古铜色等,但是电解法需要消耗较大电能,且需要大型设备。现有技术中,存在多种着色工艺,但存在一下诸多问题:其配方成分较复杂,需要着色处理时间较长,且着色效果差,膜层容易脱落,着色液使用寿命短,着色厚度不均匀。
发明内容
本发明的目的在于克服上述缺点而提供的一种操作便捷、高效可靠、效果良好、配方简单的铜合金恒温氧化湖蓝色着色的方法。
本发明目的及解决其主要技术问题是采用以下技术方案来实现的:
本发明的一种铜合金恒温氧化湖蓝色着色的方法,包括以下步骤:
(1)配制着色液:先称取15-20g碳酸铅放置于容量为1L的烧杯中,加入200mL去离子水搅拌溶解,再量取35-40mL醋酸缓慢搅拌加入溶液内,此时溶液呈乳白色,将其静置30min,然后称取45-60g硫代硫酸钠加入静置后的溶液内,搅拌使其溶解,静置60min即得到着色液;
(2)铜合金预处理:先量取油粉LCX-52(工业级)40-60g并加水稀释至1L,加热到50-60℃后将铜合金置于除油液中进行超声波除油,30-60s后取出用去离子水洗净,再称取铬酐90-120g、硫酸10-15mL,加水稀释至1L后搅拌均匀配制抛光液,将铜合金化学抛光5-15s后取出洗净,然后配制硫酸20-50mL/L作为活化液,在室温下将铜合金活化时间30-60s后取出洗净;
(3)着色:将步骤(1)中配制好的着色液加热至80℃且保持恒温,将步骤(2)中处理好的铜合金浸入着色液中缓慢搅动,浸泡15-20s即可实现湖蓝色着色,然后将铜合金取出,用清水洗净吹干,通过光蜡保护即可。
本发明同现有技术相比具有明显的优点和有益效果。由以上技术方案可知,本发明的一种铜合金恒温氧化湖蓝色着色的方法中,着色液配方中加入了碳酸铅、硫代硫酸钠及醋酸,碳酸铅的加入使膜层的致密性和成膜速率得到提升,醋酸能调节着色液保持pH=4左右使膜层更加致密,与加入的碳酸铅之间具有协同增效的作用,还能增加光亮性和提高着色层的稳定性和耐腐蚀性,保证外观颜色的均匀和美观。硫代硫酸钠电离出来的S2O3 2-和S2-与金属离子Pb2+形成黑色硫化物粒子附在铜或者铜合金表面,成为底色,加上铜合金本身的红色,随着着色时间的增加,颜色从湖蓝色到湖蓝色再到银灰色。由于反应时间的不同,化学反应程度不同,混合物最终呈现的颜色也不同,这可能由多方面因素决定,包括晶粒大小,光的干涉作用等。总之,本发明操作便捷、高效可靠、效果良好、配方简单,适合铜合金恒温氧化湖蓝色着色的推广使用。
具体实施方式
以下较佳实施例,对依据本发明提出的一种铜合金恒温氧化湖蓝色着色的方法具体实施方式、结构、特征及其功效,详细说明如后。
实施例1:
一种铜合金恒温氧化湖蓝色着色的方法,其特征在于,包括以下步骤:
(1)配制着色液:先称取15g碳酸铅放置于容量为1L的烧杯中,加入200mL去离子水搅拌溶解,再量取35mL醋酸缓慢搅拌加入溶液内,此时溶液呈乳白色,将其静置30min,然后称取45g硫代硫酸钠加入静置后的溶液内,搅拌使其溶解,静置60min即得到着色液;
(2)铜合金预处理:先量取油粉LCX-52(工业级)40g并加水稀释至1L,加热到50℃后将铜合金置于除油液中进行超声波除油,30s后取出用去离子水洗净,再称取铬酐90g、硫酸10mL,加水稀释至1L后搅拌均匀配制抛光液,将铜合金化学抛光5s后取出洗净,然后配制硫酸20mL/L作为活化液,在室温下将铜合金活化时间30s后取出洗净;
(3)着色:将步骤(1)中配制好的着色液加热至80℃且保持恒温,将步骤(2)中处理好的铜合金浸入着色液中缓慢搅动,浸泡15s即可实现湖蓝色着色,然后将铜合金取出,用清水洗净吹干,通过光蜡保护即可。
实施例2:
一种铜合金恒温氧化湖蓝色着色的方法,其特征在于,包括以下步骤:
(1)配制着色液:先称取17.5g碳酸铅放置于容量为1L的烧杯中,加入200mL去离子水搅拌溶解,再量取37.5mL醋酸缓慢搅拌加入溶液内,此时溶液呈乳白色,将其静置30min,然后称取52.5g硫代硫酸钠加入静置后的溶液内,搅拌使其溶解,静置60min即得到着色液;
(2)铜合金预处理:先量取油粉LCX-52(工业级)50g并加水稀释至1L,加热到55℃后将铜合金置于除油液中进行超声波除油,45s后取出用去离子水洗净,再称取铬酐105g、硫酸12.5mL,加水稀释至1L后搅拌均匀配制抛光液,将铜合金化学抛光10s后取出洗净,然后配制硫酸35mL/L作为活化液,在室温下将铜合金活化时间45s后取出洗净;
(3)着色:将步骤(1)中配制好的着色液加热至80℃且保持恒温,将步骤(2)中处理好的铜合金浸入着色液中缓慢搅动,浸泡17.5s即可实现湖蓝色着色,然后将铜合金取出,用清水洗净吹干,通过光蜡保护即可。
实施例3:
一种铜合金恒温氧化湖蓝色着色的方法,其特征在于,包括以下步骤:
(1)配制着色液:先称取20g碳酸铅放置于容量为1L的烧杯中,加入200mL去离子水搅拌溶解,再量取40mL醋酸缓慢搅拌加入溶液内,此时溶液呈乳白色,将其静置30min,然后称取60g硫代硫酸钠加入静置后的溶液内,搅拌使其溶解,静置60min即得到着色液;
(2)铜合金预处理:先量取油粉LCX-52(工业级)60g并加水稀释至1L,加热到60℃后将铜合金置于除油液中进行超声波除油,60s后取出用去离子水洗净,再称取铬酐120g、硫酸15mL,加水稀释至1L后搅拌均匀配制抛光液,将铜合金化学抛光15s后取出洗净,然后配制硫酸50mL/L作为活化液,在室温下将铜合金活化时间60s后取出洗净;
(3)着色:将步骤(1)中配制好的着色液加热至80℃且保持恒温,将步骤(2)中处理好的铜合金浸入着色液中缓慢搅动,浸泡20s即可实现湖蓝色着色,然后将铜合金取出,用清水洗净吹干,通过光蜡保护即可。
本发明操作便捷、高效可靠、效果良好、配方简单,适合铜合金恒温氧化湖蓝色着色的推广使用。
以上所述,仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,任何未脱离本发明技术方案内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。

Claims (1)

1.一种铜合金恒温氧化湖蓝色着色的方法,其特征在于,包括以下步骤:
(1)配制着色液:先称取15-20g碳酸铅放置于容量为1L的烧杯中,加入200mL去离子水搅拌溶解,再量取35-40mL醋酸缓慢搅拌加入溶液内,此时溶液呈乳白色,将其静置30min,然后称取45-60g硫代硫酸钠加入静置后的溶液内,搅拌使其溶解,静置60min即得到着色液;
(2)铜合金预处理:先量取油粉LCX-52(工业级)40-60g并加水稀释至1L,加热到50-60℃后将铜合金置于除油液中进行超声波除油,30-60s后取出用去离子水洗净,再称取铬酐90-120g、硫酸10-15mL,加水稀释至1L后搅拌均匀配制抛光液,将铜合金化学抛光5-15s后取出洗净,然后配制硫酸20-50mL/L作为活化液,在室温下将铜合金活化时间30-60s后取出洗净;
(3)着色:将步骤(1)中配制好的着色液加热至80℃且保持恒温,将步骤(2)中处理好的铜合金浸入着色液中缓慢搅动,浸泡15-20s即可实现湖蓝色着色,然后将铜合金取出,用清水洗净吹干,通过光蜡保护即可。
CN202011376207.0A 2020-11-30 2020-11-30 一种铜合金恒温氧化湖蓝色着色的方法 Pending CN112442687A (zh)

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Application publication date: 20210305