摘要:
The invention relates to a process for protecting vehicle body components, chassis components, engine components or exhaust systems from corrosion. In order to provide a process for actively protecting vehicle body components, chassis components, engine components or exhaust systems from corrosion, in which case the layer is to be applied on an industrial scale to standard steel and to sand-blasted press-hardened parts using conventional means (e.g. dipping, spraying, flooding), the invention proposes a process comprising the following process steps: a. using steel alloys which are conventionally used in the construction of vehicle bodies and vehicles or using hot-formed or press-hardened vehicle body components, chassis components, engine components or parts of exhaust systems which are provided with metallic coatings or metal-pigment-containing coatings or with such coatings for protection against scaling, b. using conventional joining processes to join together at least two vehicle body components, chassis components, engine components or parts of exhaust systems, which differ in composition, process undergone or surface coating, to form a composite, wherein at least one of the components joined together to form the composite is a hot-formed or press-hardened component, c. applying an anti-corrosion coating to the composite.
摘要:
The invention relates to a composite material, to a method for producing a molded body, and to the use of the composite material. In order to provide a novel composite material, a composite material comprising A. 20 to 80 % by weight of a first fibrous natural material and B. 10 to 60 % by weight of siliceous binding material is proposed, wherein the siliceous binding material is formed of 90-100 % by weight of a mixture of 40 to 95 % by weight of SiO 2 particles and from 5 to 60 % by weight of hydrolyzed tetraethoxysilane (TEOS) and up to 10 % by weight of methyltriethoxysilane (MTEOS), and cavities are formed in the composite material. In this manner, a composite material is provided on an organic basis and has excellent insulating properties.
摘要:
The invention relates to a process for producing an active anti-corrosion coating on steel components. In order to develop an active anti-corrosion coating which can be applied on an industrial scale using conventional means (e.g. dipping, spraying, flooding) and is intended for hot-formed and in particular press-hardened steel parts provided with anti-scaling means, the invention proposes a process comprising the following process steps: a. using a steel element provided with an anti-scaling layer, b. annealing the steel element at a temperature above 600°C in an annealing furnace for the purpose of hardening, semi-hot or hot forming or press-hardening, in which case a reaction layer is produced, and c. applying an anti-corrosion coating to the annealed reaction layer.
摘要:
The invention relates to a coating material having a catalytic activity for reducing the combustion temperature of soot and organic substances. The invention also relates to the use of the coating material. The aim of the invention is to create a catalytically active coating material by which means a non-abrasive coating suitable for optical applications can be provided for the combustion of soot and organic substances. To this end, the coating material contains between 20 and 90 wt. % of compounds of subgroup metals or elements of the third and fourth main groups, and between 10 and 80 wt. % of alkali or earth alkali compounds. Surprisingly, the catalytic composition according to the invention enables the production of a colourless, transparent or translucent coating having a high abrasion stability.
摘要:
The invention relates to a coating material with self-cleaning properties. In order to produce a coating material with which self-cleaning surfaces can also be made for internal areas and even in darkness, according to the invention it is proposed that the coating material contains hydrophilic surface components which are present in nano- or micro-structured form, or in a combined micro-/nano-structured form. Surprisingly, it has been shown in the context of the invention that the principles of the Lotus-Effect ® apply not only to hydrophobic but also to hydrophilic surfaces.
摘要:
The invention relates to a coating material for substrates. The aim of the invention is to provide a coating material which has both an anticorrosive and a tribological effect. For this purpose, the coating material contains between 0.5 and 90 % by weight, preferably 5 to 60 % by weight, of a lubricant for reducing the frictional resistance of the surface during shaping processes, the coating material contains up to 95 % by weight, preferably 10 to 75 % by weight, of a suitable binder, the coating material contains between 0 and 90 % by weight of pigments or fillers, the coating material can be permanently bonded to the surface of the substrate, and the coating material can be shaped in cold or hot shaping processes together with the substrate.
摘要:
It was surprisingly found that when a suitable binder including a suitable filler is used during the high temperature treatment of a curing process, the coating materials of the invention change in such a manner that electrically conducting reactive layers are formed that allow welding and especially spot welding together with the metal substrate even after treatment at temperatures of more than 800 °C.
摘要:
The invention relates to alkali-stable sol-gel coatings, to a method for producing alkali-stable sol-gel coatings, and to the use thereof. According to the invention, in order to obtain alkali-stable sol-gel coatings, the coating contains the following: a hydrolysable silane of the compounds TEOS, MTEOS or higher-chained alkyl silanes (bifunctional, trifunctional and tetrafunctional silanes), but preferably TEOS, MTEOS or mixtures thereof; and a condensation catalyst based on a) secondary or tertiary bases (e.g. amino, mercaptosilanes) and/or b) Lewis acids as metal alkoxides such as aluminium alkoxides, zirkonium alkoxides, and titanium alkoxides, the ratio (in wt. %) of the hydrolysable silane to the condensation catalyst being between 99:1 and 70:30.