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109 results about "Material repair" patented technology

Method for repairing lake and anaerobic bottom mud by nano bubble

The invention provides a composite material which uses nanometer bubbles to rapidly eliminate lake algae bloom and repair anaerobic substrate sludge. The composite material repairs anaerobic substrate sludge, increases the oxidation-reduction potential of the substrate sludge and the dissolved oxygen level of the water body while rapidly eliminating algae blood in a large area and increasing the transparency of the water body. The nanometer bubbles are oxygen nanometer bubbles, ozone nanometer bubbles or air nanometer bubbles. Natures of nanometer bubbles such as quantity, size, density and the like can be adjusted and controlled with a particular method. The invention also provides a method for using the composite material to repair the lake and anaerobic substrate sludge, which comprises that a mechanical method is used for spreading or spraying the composite material onto the lake surface, thus simultaneously finishing the algae bloom removal in the large area, increasing the transparency of the water body, repairing the anaerobic substrate sludge, increasing the dissolved oxygen level of the water body, and providing a good environment for the rapid growth of submerge vegetation and ecological restoration of the eutrophication water body; and the method has ecological security and long effect of the lake treatment.
Owner:BEIJING GREEN ECO ENVIRONMENTAL TECH

Quick bonding repair method of ultraviolet-curing composite material

The invention provides a quick bonding repair method of an ultraviolet-curing composite material. An ultraviolet-curing resin composition with quick self-propagating curing characteristic, which is used as a base material, is mixed with a fiber reinforcing material to obtain a composite material repair patch. The method comprises the following steps: 1) carrying out surface treatment on a damage region in need of bonding repair; 2) laying a composite material layer on the treated damaged region surface, wherein the thickness and direction of the composite material layer are determined according to the actual demands for repair; and 3) irradiating the composite material layer by an ultraviolet light source to form the composite material repair patch, thereby completing the bonding repair on the damage structure. The composite material repair patch has high designability, can be cured only by single irradiation in the preparation process, and has the advantages of high curing efficiency, favorable tensile strength, high repair efficiency and the like; the curing is not influenced by the number of the fiber layers and the light transmittance of the enhanced phase of the resin-base composite material; and thus, the method is especially suitable for emergency repair operation.
Owner:青岛煊龙机电科技有限公司

Self-heating molding repair device of medium-temperature curing composite material

ActiveCN106195515AExcessive heat releaseExothermic reaction violentThermal insulationPipe elementsInsulation layerSilica gel
The invention provides a self-heating molding repair device of a medium-temperature curing composite material. The repair device comprises a vacuum pressing layer for pressing a composite material repair piece on the surface of a repaired composite material structure, and a heating layer module. The repair device is characterized in that the vacuum pressing layer includes a high-temperature resisting film, and an air sucking port mounted in the high-temperature resisting film; the air sucking port is a one-way valve; the heating layer module includes a self-heating material layer formed by a self-heating material solid part, an insulation layer for bonding the self-heating material layer on the outer surface of the vacuum pressing layer and coating the self-heating material layer, a water injecting port and an exhaust port; and the insulation layer includes a high-temperature resisting film on the outermost layer, a ventilation felt on the middle layer, and a silica gel film on the inner layer. The repair device use self heat release performance of a self-heating material for quickly and conveniently curing and repairing composite material patches, satisfies the curing requirements of the composite material patches through heating temperature and time, and can enable repaired pieces to obtain excellent mechanical performances.
Owner:ACADEMY OF ARMORED FORCES ENG PLA

Yellow-resistance and rapid-curing stone material repair surface glue, preparation method and use method thereof

The present invention relates to a yellow-resistance and rapid-curing stone material repair surface glue, a preparation method and a use method thereof. The yellow-resistance and rapid-curing stone material repair surface glue comprises a component A and a component B, wherein the component A comprises, by weight, 3-4 parts of a main body, 0.5-1.0 part of an adhesion promoter, 0.05-0.1 part of phosphate, 0.005-0.01 part of an antifoaming agent, 0.01-0.02 part of a coupling agent and 0.5-1.0 part of a diluent, the main body is polyaspartate having a hydroxyl equivalent mass content of 6.1-7.4%, the adhesion promoter is polyaspartate having a hydroxyl equivalent mass content of 4.2-6.0%, and the component B comprises a nonaromatic isocyanate. According to the present invention, the main body and the adhesion promoter are subjected to combined use, such that the problems that the resin using the high hydroxyl equivalent mass content polyaspartate as the main body provides poor adhesion and poor permeability to the substrate and has short application period are effectively solved, and the obtained yellow-resistance and rapid-curing stone material repair surface glue has characteristics of rapid curing, good yellowing resistance, good adhesion, good permeability, and high bond strength.
Owner:HUNAN MAGPOW ADHESIVE INDS

Efficient soil crushing treatment equipment

The invention discloses efficient soil crushing treatment equipment. The equipment comprises a machining box, supporting legs are symmetrically arranged on the left side and the right side of the processing machining box, and supporting sleeves are arranged at the lower ends of the supporting legs in a sliding mode; and rolling wheels are arranged at the lower ends of the supporting sleeves, wherein the rolling wheels facilitate carrying of the equipment, buffering springs are arranged in the supporting sleeves, and the buffering springs are used for connecting and fixing the supporting sleeves and the supporting legs. According to the efficient soil crushing treatment equipment, carrying is convenient, and the anti-seismic property is good; materials are subjected to circumferential crushing, and then are screened through filter cylinders, so that the size of the material is qualified when the materials are repaired, and the materials is fully contacted with repairing liquid in the later period; then the screened materials upwell along a lifting cylinder through a lifting blade, are scattered along dispersing buckets under the action of centrifugal force and are struck to the inner walls of fences; and conical blocks at water spraying ports also help to further scatter the materials, so that the materials are in full contact with the repairing liquid, the material repairing effect is guaranteed, and practicability is high.
Owner:ZHENGZHOU AIMOFU INFORMATION TECH CO LTD

Heavy rare earth metal target material repairing method

The invention provides a heavy rare earth metal target material repairing method and belongs to the technical field of magnetron sputtering surface treatment. The heavy rare earth metal target material repairing method comprises the following steps: filling the loss area of a to-be-repaired target material with alloy powder, and performing the repairing operation by adopting a vacuum sintering method or a high-pressure cold spraying method, wherein the alloy powder comprises a dysprosium-terbium alloy or one or two of dysprosium and terbium and one or two of metalloids. The heavy rare earth metal target material repairing method provided by the invention has the beneficial effects that the alloy powder is adopted as a repairing material; the repairing operation is performed by adopting thevacuum sintering method or the high-pressure cold spraying method; the alloy powder plays a role in brazing, and thus the sintering temperature during the follow-up target material repairing operation is reduced; furthermore, the diffusion temperature after the film coating operation on a magnetic sheet is reduced, and the repairing difficulty and cost are reduced; according to the structure of the target material repaired through the heavy rare earth metal target material repairing method, the problem that the existing target surface cannot be reused after being defective is effectively solved; and the process is simple, the cycle is short, the use effect is close to a new target material, and the application value is good.
Owner:BAOTOU JINSHAN MAGNETIC MATERIAL

Monitoring and repairing method for curing and cementing of composite material

PendingCN107538771AUniform temperature fieldAvoid excessive temperature differenceDomestic articlesField conditionsDamage zone
The invention provides a method for monitoring and repairing composite material curing adhesive bonding, which belongs to the field of composite material adhesive bonding repair equipment. The method is based on a composite material curing adhesive repair instrument, which includes a body, and a curing source module is provided at the adhesive repair working surface of the body, and the curing source module provides energy for the composite material prepreg to cure, and the curing The source module is surrounded by multiple temperature zones from the inside to the outside. Each temperature zone is equipped with an independent curing source for providing energy to the temperature zone. The multiple temperature zones are used alone or in conjunction with each other, and according to The shape of the damaged area of ​​the structure is determined, and the temperatures of multiple temperature zones are the same or different. The present invention is based on multi-area curing source control, establishes a uniform and stable temperature field under external field conditions, and solves the problem of avoiding excessive temperature differences. Based on the principle of heat conduction, the multi-area temperature field control technology is used to achieve uniform and stable bonding repair areas. temperature field while avoiding excessive temperature differences.
Owner:青岛东正浩机电科技有限公司

In-vivo additional material repair system and in-vivo repair device

The invention provides an in-vivo additional material repair system and an in-vivo repair device. The in-vivo repair device comprises a driving mechanism, a transmission mechanism and a printing device. The printing device prints a biological material; the driving mechanism drives the transmission mechanism to rotate; the transmission mechanism comprises a revolute pair assembly, and the revolutepair assembly comprises at least two revolute pairs; the printing device is connected to the transmission mechanism through the revolute pair assembly, and the revolute pair assembly is provided withat least two revolute axes perpendicular to each other. Each of the at least two revolute pairs has the following structures: two rigid bodies and a flexible film clamped between the two rigid bodies;the two rigid bodies are missing at corresponding positions so that each rigid body can form two discrete segments, the two discrete segments are connected together through the flexible film, and therevolute axes of the revolute pairs are formed at the missing positions of the rigid bodies. At least two revolute pairs with orthogonal revolute axes are adopted to replace spherical hinge revolutepairs, so that the processing difficulty of the in-vivo repair device is reduced, and the space required by operation is reduced.
Owner:TSINGHUA UNIV

Material repair welding method of CB2 casting of ultra-supercritical turbine unit

The invention discloses a material repair welding method of a CB2 casting of an ultra-supercritical turbine unit. The method comprises the following steps that firstly, high-temperature softening tempering preheating is carried out; secondly, nondestructive inspection is carried out; thirdly, flaws are eliminated; fourthly, the portions where the flaws are eliminated are preheated; fifthly, a welding material which is the same as and cooperates with a base material is used for performing repair welding; sixthly, post-heating is carried out on the repair welding area; seventhly, nondestructive inspection is carried out on the repair welding area; eighthly, the austenitizing temperature is achieved through heating and then preserved, the cooling speed of the CB2 casting is controlled after heat preservation is finished, after the room temperature is achieved through cooling, high-temperature tempering is performed when the temperature of the casting is raised to about 100 DEG C below a point AC1 of a CB2 material, and the cooling speed is controlled for achieving the room temperature after heat preservation is finished; and ninthly, the nondestructive inspection is carried out. The procedures that the repair welding is carried out firstly, and then the performance thermal treatment is carried out are adopted, it can be ensured that the same performance thermal treatment process is adopted in the repair welding area and a body area, and it is guaranteed that the performance of a welding line joint and the performance of a body are basically consistent.
Owner:DONGFANG TURBINE CO LTD

Semidry method hot gunning repair device and method of rotary kiln lining refractory material

ActiveCN106766926AExtended service lifeAvoid production stoppage situationsLinings repairRefractoryMullite
The invention discloses a semidry method hot gunning repair device and method of a rotary kiln lining refractory material, and belongs to a rotary kiln lining refractory material repair technology. The repair device comprises a gunning machine, the gunning machine is communicated with a high pressure air source through a compressed air pipe, the gunning machine is further communicated with a spray gun through a first high pressure pipeline, the spray gun is further communicated with a water tank through a second high pressure pipeline, a self-priming pump is installed between the water tank and the second high pressure pipeline, and is used for outputting a gunning refractory from the gunning machine through the first high pressure pipeline by utilizing high pressure air, then outputting a silica sol solution from the water tank through the second high pressure pipeline by utilizing the self-priming pump, mixing the gunning refractory and the silica sol solution in the spray gun and spraying the gunning refractory and the silica sol solution. By spraying the mixture of a mixed solution of spray gun silica sol solution and water and high alumina mullite to the inner wall of the rotary kiln through the spray gun, filling a perfoliate fracture, thickening the thickness of the refractory material, repairing a castable which sheds locally, and adopting a hot repair technology, the time for slow-down kiln cooling during cold repair is avoided, the repair time is short, and the production of the subsequent process is not influenced.
Owner:GUANGDONG GUANGQING METAL TECH

Method for repairing lake and anaerobic bottom mud by nano bubble

The invention provides a composite material which uses nanometer bubbles to rapidly eliminate lake algae bloom and repair anaerobic substrate sludge. The composite material repairs anaerobic substrate sludge, increases the oxidation-reduction potential of the substrate sludge and the dissolved oxygen level of the water body while rapidly eliminating algae blood in a large area and increasing the transparency of the water body. The nanometer bubbles are oxygen nanometer bubbles, ozone nanometer bubbles or air nanometer bubbles. Natures of nanometer bubbles such as quantity, size, density and the like can be adjusted and controlled with a particular method. The invention also provides a method for using the composite material to repair the lake and anaerobic substrate sludge, which comprises that a mechanical method is used for spreading or spraying the composite material onto the lake surface, thus simultaneously finishing the algae bloom removal in the large area, increasing the transparency of the water body, repairing the anaerobic substrate sludge, increasing the dissolved oxygen level of the water body, and providing a good environment for the rapid growth of submerge vegetation and ecological restoration of the eutrophication water body; and the method has ecological security and long effect of the lake treatment.
Owner:BEIJING GREEN ECO ENVIRONMENTAL TECH

Method for repairing ternary positive electrode material with deteriorated performance and acquired ternary positive electrode material

The invention discloses a method for repairing a ternary positive electrode material with deteriorated performance and the acquired ternary positive electrode material. The material repairing method comprises the steps that a repairing agent is dispersed in an organic solvent; after ultrasonic dispersion, the ternary positive electrode material with deteriorated performance under a state of continuous stirring is added; and the repaired ternary positive electrode material is acquired after filtering and high temperature sintering. The interface of the ternary material can be adjusted by adjusting the amount of the repairing agent and other parameters. At the same time, the repairing agent can react with residual lithium on the surface of the material to form a stable compound, which is beneficial to reducing the residual lithium on the surface of the material and can significantly restore the material performance. According to the invention, the previous technical ideas of preventing performance degradation or deterioration of the ternary positive electrode material of a lithium battery is broken; the material which is degraded and deteriorated is remedially treated; and the problems which are not effectively solved during the preparation, transportation and storage of the ternary positive electrode material are solved.
Owner:CENT SOUTH UNIV

Fast-cured epoxy impregnating adhesive and preparation method thereof

ActiveCN106189973ASolve the technical problems of slow curing speed and long early strengthHigh reactivityNon-macromolecular adhesive additivesEpoxy resin adhesivesFiberHeat resistance
The invention discloses a fast-cured epoxy impregnating adhesive. The fast-cured epoxy impregnating adhesive is composed of a component A and a component B at a weight ratio of 1: (0.5-0.7), wherein the component A comprises the following components in parts by weight: 100 parts of bisphenol A-type epoxy resin, 0.5-2 parts of a silane coupling agent and 1-5 parts of a thixotropic agent; the component B comprises the following component in parts by weight: 100 parts of a modified amine curing agent. The fast-cured epoxy impregnating adhesive overcomes the technical difficulties that in a fiber composite material repairing and reinforcing project, the conventional epoxy impregnating adhesive is low in curing speed and takes a long time for obtaining early strength. By matching with fiber cloth for use, the fast-cured epoxy impregnating adhesive provided by the invention can quickly repair and reinforce a base material. The fast-cured epoxy impregnating adhesive is high in reaction activity; after the fast-cured epoxy impregnating adhesive is cured for 4 h, a test shows that the tensile strength reaches 40 Mpa and the positive pulling bond strength reaches 2.56 Mpa, so that relevant requirements of GB50728 are met; the fast-cured epoxy impregnating adhesive is good in dampness resistance, heat resistance and aging resistance, and thus can be used for a long time.
Owner:CARBON TECH CO LTD
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