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Laboratory evaluation of epoxy coatings with an adhesion promoter by impedance

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The effect of t-glycidyloxpropyl-trimethoxysilane as an adhesion promoter on the corrosion behaviour of epoxy coatings pigmented with rutile, iron oxide and glass flake was investigated using electrochemical impedance spectroscopy. Improved performance was attributed to an increase in initial, wet and recovered adhesion between the glass flakes and the binder.

Laboratory Evaluation of Paint Durability Accelerated Weathering Tests.

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Overview of artificial weathering tests & their relation to actual climatic conditions. Meteorological data only. Disc'n pp 350-354.

Laboratory evaluations of mechanical decontamination and descaling techniques

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Laboratory galling tests of several commercial cobalt-free weld hardfacing alloys

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Laboratory Instrumentation (4th ed'n)

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Techniques incl. turbidimetry

Laboratory investigations into the edge corrosion control capacity of organic coatings.

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Edge corrosion of coated materials was investigated experimentally. Various hypotheses are discussed. It is summarised that the morphology and geometry of free edges on steel structure have a notable influence on the corrosion control performance of coating systems. The prescription of a particular edge geometry parameter does not help to control the anticorrosive performance of organic coatings under simulated water ballast tank conditions. Other effects, such as edge treatment method/tool and coating application, are more important. It seems that dry film thickness, or barrier resistance, is not a suitable parameter to control the deterioration of the coating systems, nor does it control their corrosion resistance capability. More complex processes, such as combined mechanical, physical, and thermal loads, are responsible for the corrosion control action of the systems.

Laboratory measurement of the attack of reducing acids in the pickling of steel sheet surfaces

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Laboratory method for testing of the pickling ability of cold-rolled steel sheets

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Laboratory Methods for the Evaluation of Protective Coatings and Lining Materials in Immersion Service

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Laboratory Methods for the Evaluation of Protective Coatings and Lining Materials in Immersion Service

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Laboratory Methods for the Evaluation of Protective Coatings and Lining Materials in Immersion Service

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Laboratory pickling test of skin pass cold-rolling steel sheets for vitreous enamelling

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Limiting conditions of laboratory pickling test of steel sheets prior to enamelling were determined on basis of measurements. Effects of sampling were verified. Constant initial surface stage of sheet specimens can be achieved by 2 stage degreasing procedure: preliminary degreasing in org. solvents and galvanic degreasing in electrolyte containing 10 g SYNALOD 3024 in 1,000 ml of H2O, at 6 V, 50 A/m*2/2 min. Lab. pickling efficiency tests were carried out in 1,000 ml 10% H2SO4 with an addition of carbonyl iron (1 g) at 70° C/5 min. Pickling process remains stable up to 70 samples (dimensions 50 mm x 100 mm) per 1 1 of soln. Increase of Fe content is accompanied by gradual decline of acid activity.

Laboratory pickling test of skin pass rolling steel sheets

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Limiting conditions of laboratory pickling test of steel sheets prior to enamelling were determined on basis of measurements. Effects of sampling were verified. Constant initial surface state of sheet specimens can be achieved by 2 stage degreasing procedure: preliminary degreasing in org. solvents and galvanic degreasing in electrolyte containing 10 g SYNALOD 3024 in 1000 ml of H2O, at 6 V, 50 A/sq.m. Lab. pickling efficiency tests were carried out in 1 000 ml 10% sulphuric acid with an addition of carbonyl iron (1 g) at 70° C/5 min. Pickling process remains stable up to 70 samples (dimensions 50 mm x 100mm) per 1 l of soln. Increase of Fe content is accompanied by gradual decline of acid activity.

Laboratory pickling test of skin pass rolling steel sheets

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Limiting conditions of laboratory pickling test of steel sheets prior to enamelling were determined on basis of measurements. Effects of sampling were verified. Constant initial surface state of sheet specimens can be achieved by 2 stage degreasing procedure: preliminary degreasing in org. solvents and galvanic degreasing in electrolyte containing 10 g SYNALOD 3024 in 1000 ml of H2O, at 6 V, 50 A/sq.m. Lab. pickling efficiency tests were carried out in 1 000 ml 10% sulphuric acid with an addition of carbonyl iron (1 g) at 70° C/5 min. Pickling process remains stable up to 70 samples (dimensions 50 mm x 100mm) per 1 l of soln. Increase of Fe content is accompanied by gradual decline of acid activity.

Laboratory pickling test of skin pass rolling steel sheets

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Limiting conditions of laboratory pickling test of steel sheets prior to enamelling were determined on basis of measurements. Effects of sampling were verified. Constant initial surface state of sheet specimens can be achieved by 2 stage degreasing procedure: preliminary degreasing in org. solvents and galvanic degreasing in electrolyte containing 10 g SYNALOD 3024 in 1 000 ml of water, at 6 V, 50 A/sq.m min. Lab. pickling efficiency tests were carried out in 1 000 ml 10% sulphuric acid with an addition of carbonyl iron (1 g) at 70° C/5 min. Pickling process remains stable up to 70 samples (dimensions 50 mm x 100mm) per 1 l of soln. Increase of Fe content is accompanied by gradual decline of acid activity.