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"Innovations for Tomorrow" Eleventh International Aluminum Extrusion Technology Seminar & Exposition – ET ’16, 2016
This paper reports on two new technologies for producing attractive new finishes on anodized arch... more This paper reports on two new technologies for producing attractive new finishes on anodized architectural aluminum, which are the subject of patents. The first of these represents a revolutionary approach to the production of a fine uniform finish on architectural extrusions, which reduces caustic soda consumption by up to 75 % and minimizes the problems associated with effluent treatment and sludge removal. As well as these advantages, the technique developed eliminates defects such as die lines, scratches, etc., thus improving yields and reducing operating costs. A second major development is the development of a new electrolytic coloring system by means of which grey, blue, green, red and purple can be obtained from the same electrocoloring bath. This multi-colour process modifies the barrier layer with a specially developed current
This paper reports on two new technologies for producing attractive new finishes on anodized arch... more This paper reports on two new technologies for producing attractive new finishes on anodized architectural aluminum, which are the subject of patents. The first of these represents a revolutionary approach to the production of a fine uniform finish on architectural extrusions, which reduces caustic soda consumption by up to 75% and minimizes the problems associated with effluent treatment and sludge removal. As well as these advantages, the technique developed eliminates defects such as die lines, scratches, etc., thus improving yields and reducing operating costs. A second major development is the development of a new electrolytic coloring system by means of which grey, blue, green, red and purple can be obtained from the same electrocoloring bath. This multi-colour process modifies the barrier layer with a specially developed current source and selectively “electrodeposits” tin in the pores of the oxide film. Whereas the “interference colors” previously developed required a second...
Materials Today: Proceedings, 2015
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1978
Thermodynamic and kinetic studies have revealed conventional mean-ion and convenient single-ion a... more Thermodynamic and kinetic studies have revealed conventional mean-ion and convenient single-ion activity coefficients for copper(II), magnesium and sulphate ions and standard exchange rates for either step of the liquid Cu(Hg)/Cu(II) electrode and of the solid Cu/ Cu(II) electrode, all in 0.005 mol kg~-1 CuSO4 + 0.005 mol kg-1 H2SO 4 + (x-0.01) mol kg-1 MgSO4 (for x = 0.2 to 3) at 25 C. With increasing x, the sulphate activity coefficient steadily falls, the copper(II) and magnesium activity coefficients go through a minimum near x = 1, and the standard rates fall. The kinetic changes with x reveal some information on double-layer and ligand effects.
"Innovations for Tomorrow" Eleventh International Aluminum Extrusion Technology Seminar & Exposition – ET ’16, 2016
This paper reports on two new technologies for producing attractive new finishes on anodized arch... more This paper reports on two new technologies for producing attractive new finishes on anodized architectural aluminum, which are the subject of patents. The first of these represents a revolutionary approach to the production of a fine uniform finish on architectural extrusions, which reduces caustic soda consumption by up to 75 % and minimizes the problems associated with effluent treatment and sludge removal. As well as these advantages, the technique developed eliminates defects such as die lines, scratches, etc., thus improving yields and reducing operating costs. A second major development is the development of a new electrolytic coloring system by means of which grey, blue, green, red and purple can be obtained from the same electrocoloring bath. This multi-colour process modifies the barrier layer with a specially developed current
This paper reports on two new technologies for producing attractive new finishes on anodized arch... more This paper reports on two new technologies for producing attractive new finishes on anodized architectural aluminum, which are the subject of patents. The first of these represents a revolutionary approach to the production of a fine uniform finish on architectural extrusions, which reduces caustic soda consumption by up to 75% and minimizes the problems associated with effluent treatment and sludge removal. As well as these advantages, the technique developed eliminates defects such as die lines, scratches, etc., thus improving yields and reducing operating costs. A second major development is the development of a new electrolytic coloring system by means of which grey, blue, green, red and purple can be obtained from the same electrocoloring bath. This multi-colour process modifies the barrier layer with a specially developed current source and selectively “electrodeposits” tin in the pores of the oxide film. Whereas the “interference colors” previously developed required a second...
Materials Today: Proceedings, 2015
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1978
Thermodynamic and kinetic studies have revealed conventional mean-ion and convenient single-ion a... more Thermodynamic and kinetic studies have revealed conventional mean-ion and convenient single-ion activity coefficients for copper(II), magnesium and sulphate ions and standard exchange rates for either step of the liquid Cu(Hg)/Cu(II) electrode and of the solid Cu/ Cu(II) electrode, all in 0.005 mol kg~-1 CuSO4 + 0.005 mol kg-1 H2SO 4 + (x-0.01) mol kg-1 MgSO4 (for x = 0.2 to 3) at 25 C. With increasing x, the sulphate activity coefficient steadily falls, the copper(II) and magnesium activity coefficients go through a minimum near x = 1, and the standard rates fall. The kinetic changes with x reveal some information on double-layer and ligand effects.