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彩色不锈钢生产工艺及其耐蚀性的研究 总被引:7,自引:1,他引:7
采用添加了CS-1添加剂的常规的不锈钢着色液可以生产出彩色不锈钢。所获彩色膜除包括在常规的着色液中可获得的颜色外,还能着出茶色、咖啡色、古铜色等颜色。通过动电位扫描极化曲线等的测量和分析,研究了所得着色膜的耐蚀性能,并解释着色膜经硬化处理后,耐蚀性得到提高的原因。 相似文献
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不锈钢电化学着色膜的研究 总被引:10,自引:0,他引:10
采用电化学方法成功地对不锈钢进行着色,利用电子探针分析仪(EPMA)对着色膜进行分析,同时对着色膜的性能进行测定,结果表明,电化学方法得到的着色膜具有良好的耐磨性和耐蚀性。 相似文献
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不锈钢阳极氧化着金黄色技术 总被引:5,自引:0,他引:5
对不锈钢阳极氧化着金黄色技术进行了研究,并利用正交试验法确定了最佳工艺,所得到的不锈钢着色膜光亮美观,呈金黄色,具有优良的耐蚀性,耐磨性和良好的附着力,在金相显微镜下观察到不锈钢着色膜为无色透明膜。 相似文献
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介绍了一种不锈钢黑色转化工艺。研究了温度和着色液主要组分对转化工艺的影响,并对黑色转化膜的成分、耐磨性、耐热性、耐蚀性等性能进行分析。得到不锈钢着黑色的最佳工艺条件为:铬酸酐175g/L,浓硫酸275mL/L,添加剂A225g/L,温度80°C。铬酸酐——浓硫酸复配组成影响转化膜的色泽和均匀性。随添加剂A含量的增加,转化膜颜色依次为灰、黑、蓝。不锈钢黑色转化膜的主要成分是Fe2O3和Cr2O3,膜厚为0.478μm,膜层黑度深,光亮度、耐热性和机械加工性能优异,耐腐蚀性和耐磨性均优于不锈钢基体。 相似文献
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微机控制镜面彩色不锈钢的制备 总被引:6,自引:1,他引:5
镜面彩色不锈钢是一种具有广泛应用前景的新型装饰材料。详细介绍了采用微机控制电位法制备镜面彩色不锈钢的工艺过程,对不锈钢氧化膜层的耐蚀性,耐磨性,耐热性,断裂伸长率,弯曲强度等性能进行了测试。 相似文献
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不锈钢具有良好的耐蚀性和耐磨性,已广泛用于各个领域。总结了不锈钢化学着黑色工艺及不同添加剂的影响,讨论了不锈钢着色的发展前景。 相似文献
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采用以CrO3和H2SO4.4H2O为主要组分加入适量MnSO4.4H2O的着色液对不锈钢进行化学着色,探讨了前处理工艺,着色液温度、质量浓度和着色时间等因素对不锈钢彩色膜的影响。经大量实验得到了最佳的着色液配方和工艺范围:240 g/LCrO3、270 mL/LH2SO4、10 g/LMnSO4.4H2O,θ为50~90℃,t为10~35min。得到了随着温度的升高和时间的延长,膜厚度增加,颜色的变化为茶色→蓝色→金黄色→紫红色→绿色。着色膜经固化处理和封闭处理,表面色彩更均匀,重现性好,耐磨性及耐蚀性明显提高。 相似文献
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三角波电流扫描法制备彩色不锈钢的研究 总被引:7,自引:1,他引:6
用三角波电流扫描法制备茶色、蓝色、黄色、红色等颜色的不锈钢。研究了三角波电流各项参数对着色膜耐磨性和颜色均匀性以及重现性的影响,利用正交实验,确定了最佳工艺。 相似文献
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304不锈钢化学着黑色的研究 总被引:1,自引:0,他引:1
在INCO法的基础上,通过添加辅助成膜剂和添加剂对不锈钢化学着色液的配方进行改进,采用时间-电位差法控制着色过程,在304不锈钢表面得到了黑色膜(简称304黑钛板)。实验结果表明:304黑钛板具有良好的耐蚀性能、耐磨性能和加工性能。Tafel极化曲线表明:着色膜的形成提高了304不锈钢板的阳极极化作用以及电化学稳定性。SEM和EDS分析结果表明:黑色膜均匀、致密,主要由Fe,Cr,Ni,Mn,Ce,C,O,P等元素组成。此外,初步探讨了304不锈钢表面黑色膜的成膜机理。 相似文献
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不锈钢电解着色工艺及电化学性能 总被引:4,自引:0,他引:4
对1Cr17铁素体不锈钢电解着黑色工艺和膜层的电化学性能进行探讨。本工艺具有发黑速度快,色泽均匀,较好的抗蚀性能。电解着色不锈钢表面形成铬的复合氧化膜,增强了钝性,使得自然电位和阳极极化电位正移,提高了膜层的电化学稳定性能。 相似文献
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为提高钢铁件的耐蚀、耐热及装饰等性能,用电沉积法研究了钢铁表面在硫酸铜溶液中的着色工艺,研究了pH值、电流密度、时间等工艺条件对着色效果的,利用光电子能谱仪分析了着色膜的成分。结果表明:钢铁表面在铜盐着色液中能获得多种颜色,着色膜主要成分为铜元素,其发色机理为光干扰效应。 相似文献
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M.E. NICHO HAILIN HU J.G. GONZÁLEZ-RODRIGUEZ V.M. SALINAS-BRAVO 《Journal of Applied Electrochemistry》2006,36(2):153-160
Polyaniline (PANI) thin films were electrochemically deposited by cyclic voltammetry on stainless steel electrode previously
covered by a thin film of polyvinyl acetate (PVAc). The corrosion resistance of PANI covered stainless steel substrates was
estimated by using potentiodynamic polarization curves and its linear polarization resistance (LPR) was measured in 0.5 M H2SO4, 0.5 M NaCl and 0.5 M NaOH aqueous solutions at room temperature. The results indicate that the PANI-PVAc films did improve the corrosion resistance
of the stainless steel in NaOH, behaving even worst, in the case of PANI film, than the uncoated substrate. In H2SO4 both PANI and PANI-PVAc coatings gave good protection for the stainless steel electrode, with a slightly better performance
of PANI-PVAc than PANI. In NaCl solution both PANI and PANI-PVAc films provided a good protection against corrosion. The better
performance of PANI-PVAc coatings for corrosion protection in basic media may be due to its major chemical stability compared
to simple PANI films, which lose their conductivity in high pH solutions. The E
corr (free corrosion potential) value of the coated substrate was in the passive region of the uncoated substrate in acidic environment
but in the active region in neutral or basic environment. 相似文献
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Poly(o-anisidine) (POA) and polyaniline (PANI) coatings were synthesized on platinum (Pt) surface and stainless steel (SS) in monomer containing 0.50 M sulphamic acid (SA) solution by means of cyclic voltammetry (CV) technique. Meanwhile, poly(o-anisidine) film was also deposited with a different scan rate on SS electrode. The behaviour of PANI and POA films obtained on stainless steel examined by CV was different from the one obtained for PANI and POA on Pt electrode. The corrosion performances of PANI and POA coatings in 3.5% NaCl solution were investigated with anodic polarization technique and electrochemical impedance spectroscopy (EIS). EIS measurements verified the effect of monomers and that of scan rate on corrosion inhibition of coatings on SS electrode. The results showed that POA film synthesized at low scan rate exhibited an effective anticorrosive property on SS electrode. POA synthesized at low scan rate and PANI coatings provided a remarkable anodic protection to SS substrate for longer exposure time than the one observed for POA coating produced at high scan rate as well as that of bare SS electrode. 相似文献