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108results about "Pretreated surfaces" patented technology

Method for treating a solid material to make it hydrophobic, material obtained and uses

InactiveUS6342268B1Simple and rapid and methodWater-repelling agents additionOther chemical processesChemical structureProduct gas
A solid material is treated, the chemical structure of which defines reactive protogenic hydrophillic functions accessible to gases, by applying at least one gas stream (3) onto at least one microdispersion (5) of at least one grafting reagent RX produced on the solid material, R being a hydrophobic group, X being chosen so that HX is volatile under normal conditions, R and X being chosen so that the reaction of RX on the hydrophillic functions produces covalent grafting of the hydrophobic group R with formation of the compound HX, it being possible for the reaction to be carried out in a solid / gas heterogeneous medium on all the reactive hydrophillic functions accessible to gases and only on these. The invention extends to the hydrophobic solid material obtained, and is applicable to the obtaining of natural or artificial fibrous or inorganic structures impermeable to water and to aqueous solutions and / or absorbing fats.
Owner:BT3 TECH

Apparatus and method for plasma treating and dispensing an adhesive/sealant onto a part

InactiveUS20060172081A1Minimal timeLow costMovable spraying apparatusPretreated surfacesAdhesiveSealant
An apparatus that includes a plasma treatment device operable to produce a plasma treated surface on a part and a dispensing module and operable to dispense an adhesive / sealant onto the plasma treated surface.
Owner:NORDSON CORP

Super-hydrophobic conformal coating, and preparation method and application method thereof

The invention discloses a super-hydrophobic conformal coating, and a preparation method and an application method thereof. The super-hydrophobic conformal coating is composed of, by mass, 5 to 40% of fluorocarbon resin, 10 to 30% of fluorosilicon resin, 20 to 60% of an organic solvent, 10 to 30% of silica, 1 to 10% of titanium dioxide, 1 to 10% of polytetrafluoroethylene, 0.1 to 0.5% of a catalyst, and 1 to 5% of a curing agent. According to the preparation method, the ingredients are subjected to stirring mixing and ultrasonic uniform dispersion in sequence at a certain ratio. According to the application method, the super-hydrophobic conformal coating is subjected to direct spraying or brush coating onto the surfaces of insulators and outdoor electric power facilities; the thickness of obtained coating layers is controlled to be 0.1 to 0.5mm preferably; and 20 to 60min of normal temperature curing is needed. The preparation method is simple; the cost is low; the super-hydrophobic conformal coating is convenient to use, possesses extremely high hydrophobicity and weatherability, is capable of realizing self cleaning, is a nanometer composite hybrid normal-temperature cured fluorocarbon coating, is capable of realizing stain prevention, pollution flashover prevention, and corrosion prevention of insulators and outdoor electric power facilities effectively, and is promising in application prospect.
Owner:昆明理工大电力工程技术有限公司

Method for metallizing ceramic surface and method for connecting ceramic with aluminum

ActiveUS20120121896A1Hot-dipping/immersion processesSoldering apparatusMicrometerAlloy thin film
A process for metalizing a ceramic surface or attaching a ceramic to a metal is provided. The process may comprise: immersing the ceramic into an aluminum or aluminum alloy melt, making the ceramic move or stay still relative to the melt to adhere the melt to the ceramic; and then removing the ceramic from the melt to unaffectedly cool the film adhered thereto. The process can attach an aluminum or aluminum alloy thin film having a thickness of several to tens of micrometers on a ceramic surface. The thin film is formed by solidification, and does not have microscopic faults such as oxide film inclusions or pores, therefore having proper physical of mechanical properties of aluminum. Ceramics or a ceramic and a metal can be brazed via the surface metalizing film, the bonding strength of their interface can over the strength of aluminum itself.This invention discloses a process for metalizing the surface of a ceramic and a process for attaching a ceramic to a metal. A process for attaching an aluminum or aluminum alloy thin film to a ceramic surface comprises the steps of: immersing a ceramic surface to be metalized into a aluminum or aluminum alloy melt, and making the ceramic move or stay still relative to the melt to adhere the melt of the aluminum or aluminum alloy to the metalizing surface of the ceramic; and then removing the metalizing surface of the ceramic from the melt to unaffectedly cool the aluminum or aluminum alloy liquid film adhered thereto to obtain a ceramic having the aluminum or aluminum alloy thin film attached to the surface. The process to attaching aluminum or aluminum alloy thin film on the surface of a ceramic of the present invention can attach an aluminum or aluminum alloy thin film having a thickness of several micrometers to tens of micrometers on the surface of a ceramic. The thin film is formed by the solidification of the aluminum of aluminum alloy liquid film attached on the surface of a ceramic, and it does not have the microscopic faults such as oxide film inclusions or pores, therefore having the proper physical of mechanical properties of aluminum. Ceramics or a ceramic and a metal can be brazed via the surface metalizing film, the bonding strength of their interface can over the strength of aluminum itself.
Owner:TSINGHUA UNIV

Powder spraying curing automatic production line of case of rotary filter

InactiveCN101811113APretreated surfacesCoatingsElectric energyPowder Spray
The invention relates to a powder spraying curing automatic production line of a case of a rotary filter, which comprises a curing device (100) and a spraying gun (22), wherein the curing device comprises a baking passage (3), a machine frame (1) is arranged in the baking passage, a transmission chain (6) is arranged on the machine frame (1), a hanging tool (2) is arranged on the transmission chain, and a heating device is also arranged in the baking passage to be matched with the hanging tool. The invention is characterized in that the powder spraying curing automatic production line also comprises a powder spraying device (300) and a case switching device (200), wherein the case switching device is arranged between the powder spraying device and the curing device. The invention has the advantages that the powder spraying device, the switching device and the curing device form the automatic production line. Because the invention adopts the rotary powder spraying, and a device for recovering powder is arranged on the production line, the invention has the advantages that the absorption of a large amount of plastic powder by the hanging tool is reduced, the plastic powder and the electric energy are saved, the pollution on the atmosphere and the environment is eliminated, the maintenance cost of the equipment is reduced, the production efficiency is improved, and the production cost is saved.
Owner:BENGBU HAOYE FILTER

Zinc-aluminum coating enhanced with particles in micro-nano sizes and production method of zinc-aluminum coating

InactiveCN104984889AImprove mechanical propertiesImprove scratch resistancePretreated surfacesSpecial surfacesMicro nanoSilicon oxide
The invention relates to a zinc-aluminum coating enhanced with particles in micro-nano sizes, and belongs to the field of surface protection of magnetic materials. The coating is used for being coated on the surface of a neodymium-iron-boron permanent magnet and the zinc-aluminum coating mixed with the micro-nano particles, and the micro-nano particles are one or more kinds of titanium dioxide, silicon oxide, aluminum oxide, aluminum and cerium oxide in the micro-nano sizes. The technical scheme of the zinc-aluminum coating lies in that the micro-nano particles are mixed into the zinc-aluminum coating, so that the zinc-aluminum coating concurrently has an own anti-corrosion property of the coating and an incidental high-temperature oxidation resistant property, an incidental shock resistant property and incidental high tenacity of the micro-nano particles, and a mechanical property and a scratch resistant property of the surface coating of the anti-corrosion neodymium-iron-boron permanent magnet are greatly improved. The invention further relates to a production method of the zinc-aluminum coating enhanced with the particles in the micro-nano sizes, and the production method comprises the following steps: processing matrixes, preparing a coating solution, coating the matrixes and drying the coating solution.
Owner:EARTH PANDA ADVANCE MAGNETIC MATERIAL

Systems and methods for enhancing mobility of atomic or molecular species on a substrate at reduced bulk temperature using acoustic waves, and structures formed using same

ActiveUS20140199550A1Improve mobilityReduce the temperatureRadiation applicationsVacuum evaporation coatingChemical physicsAcoustic wave
Under one aspect of the present invention, a method for enhancing mobility of an atomic or molecular species on a substrate may include exposing a first region of a substrate to an atomic or molecular species that forms a molecular bond with the substrate in the first region; directing a laser pulse to a second region of the substrate so as to generate an acoustic wave in the second region, the acoustic wave having spatial and temporal characteristics selected to alter the molecular bond; and transmitting the acoustic wave from the second region to the first region, the acoustic wave altering the molecular bond between the substrate and the atomic or molecular species to enhance mobility of the atomic or molecular species on the substrate in the first region.
Owner:THE AEROSPACE CORPORATION

Method for manufacturing long laminated polarizing plate and long laminated polarizing plate

It is an object of the invention to provide a method for manufacturing a long laminated polarizing plate having a long polarizing coating formed by coating directly on a long retardation film and to provide such a long laminated polarizing plate. The present invention relates to a method for manufacturing a long laminated polarizing plate comprising a long retardation film having a slow axis in its longitudinal direction and a long polarizing coating placed on the retardation film and having an absorption axis or a transmission axis in an in-plane direction at an angle of 25 to 65° to the slow axis direction of the long retardation film.
Owner:NITTO DENKO CORP

Reactive surface coating having chemical decontamination and biocidal properties

Reactive compositions are provided, having biocidal and chemical decontamination / neutralization properties, comprising a hygroscopic polymer and an active, which are useful in a variety of commercial, healthcare and military applications and a wide variety of contaminants, including without limitation chemical and biological warfare agents. The reactive compositions are renewable or rechargeable after use by exposure to an additional application of the active and do not require removal, disposal or replacement of the originally applied composition. Methods for preparing and applying the reactive compositions are disclosed.
Owner:AMERICAN STERILIZER CO +1

Substrate processing apparatus and substrate processing method

A substrate processing apparatus comprises: a first solidifier and a second solidifier. The first solidifier solidifies a liquid to be solidified adhering to a front surface of a substrate by supplying a liquid refrigerant to a back surface of the substrate at a first position. The second solidifier solidifies the liquid to be solidified by at least one of a first cooling mechanism and a second cooling mechanism. The first cooling mechanism cools the liquid to be solidified by supplying a gas refrigerant toward the substrate at a second position more distant from a center of rotation of the substrate in a radial direction than the first position. The second cooling mechanism cools the liquid to be solidified by bringing a processing surface into contact with the liquid to be solidified at the second position.
Owner:DAINIPPON SCREEN MTG CO LTD
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