84results about How to "Suitable for repair" patented technology

The invention discloses a system for repairing organic material polluted soil, which comprises a chimney and a rotary kiln reactor, wherein the smoke exhaust port of the rotary kiln reactor is connected with a furnace chamber; the furnace chamber is connected with a cyclone separator; one end of the cyclone separator is connected with a preheating passage; the other end of the cyclone separator is connected with a refeeder; the refeeder is connected with the furnace chamber; the preheating passage is connected with the chimney after passing through a flue gas desulfurization denitration purifier and a bag-type dust remover; an air preheating device is arranged in the preheating passage; one end of the air preheating device is connected with a first blower; the other end of the air preheating device is connected with the rotary kiln reactor and the furnace chamber respectively; and a rotary kiln repaired soil outlet is arranged on the rotary kiln reactor. The invention further discloses a method for repairing organic material polluted soil. According to the invention, the advantages of the thermal desorption technology in the organic material polluted soil repairing process are fully played; and organic material polluted soil, which is difficult to repair, can be repaired fast through the combination of new rotary kiln thermal desorption technology and the circulatory fluidized bed incineration technology.

A system for repairing a vertebral disc defect, such as hernia or bulge, a full or partial tear in the annulus, or a weakened annulus wall as a result of an excision procedure. The system introduces a treatment device arranged to repair the defect, and may prevent the leakage of fluid from the nucleus. The components of the device may be resorbable materials, and may induce the ingrowth of cellular material into the components. The system may feature a locating device to ensure proper placement of the treatment device.

The invention discloses wire additive and reductive combination machining equipment. The wire additive and reductive combination machining equipment comprises an on-line metal arc welding wire additive manufacture device and a numerical control multi-axis linkage machining device, wherein the on-line metal arc welding wire additive manufacture device comprises a welding robot and a welder system; the welder system is arranged on the welding robot; the multi-axis linkage machining system comprises a three-dimensional measurement device and a multi-axis linkage precise machining system; the three-dimensional measurement device is used for measuring the outline information of a part and transmits the information to a computer; the computer is used for obtaining the real outline of the part through the received outline information, then compares the real outline with a theoretical three-dimensional model to obtain an error; and the multi-axis linkage precise machining system is used for performing wire reductive machining on the part, so that the error between the real outline and the theoretical three-dimensional model is controlled in a preset range. By adopting the wire additive and reductive combination machining equipment, the problem of a current precise machining method that a part with a complex shape can hardly be machined automatically is solved; and the advantages of arc welding wire additive manufacture of high efficiency, low energy consumption and high environment adaptability can be fully exerted.

Systems and methods are provided for improved brazing. A system includes a gap filling compound (GFC). The GFC includes a brazing alloy. The system also includes a GFC retention screen. The GFC retention screen configured to be disposed over the GFC to retain the GFC within the gap during brazing. The GFC retention screen is also configured to enable gas to escape from the GFC during brazing.

The invention relates to a 3D-printed multi-structure bone composite scaffold. The 3D-printed multi-structure bone composite scaffold comprises a multi-layer structure, wherein different layers are made of composite materials in different proportions through 3D printing, and the 3D-printed multi-structure bone composite scaffold has different 3D printing fiber spacings and porosity factors. The specific structure comprises a bionic bone structure, the outer layer is low in porosity and small in aperture to simulate a compact bone structure, the inner layer is high in porosity and large in aperture to simulate a cancellous bone structure, and the scaffold similar to a real bone structure is integrally formed; in an osseointegration structure, the outer layer is high in porosity and large inaperture so as to promote integration with surrounding bones, the inner layer is low in porosity and small in aperture so as to support the overall structure while promoting osseointegration, and thewhole structure is suitable for repairing bone defects. The material of the scaffold is preferably a composite material of tricalcium phosphate (TCP) and polycaprolactone (PCL), and the scaffold hasgood biocompatibility and printability. The bone repair effect is promoted by adding metal ions and performing surface modification treatment.

The present invention relates to the fabrication of multichannel nerve conduits for use in the repair of nerve injury. In particular, the invention relates to collagen multichannel nerve conduits which are suitable for use in repair of peripheral nerves.

A weld process cuitable for repairing precipitation-strengthened superalloys, and particularly gamma prime-strengthened nickel-based superalloys. The process entails forming a weldment in a cavity present in a surface of an article formed of a precipitation-strengthened superalloy. The cavity has a root region and a cap region between the root region and the surface of the article. A solid body formed of a superalloy composition is placed in the root region of the cavity so as to occupy a first portion but not a second portion of the root region. A first filler material formed of a solid solution-strengthened superalloy is then weld-deposited in the second portion of the root region. Subsequently, a second filler material formed of a precipitation-strengthened superalloy is weld-deposited in the cap region of the cavity.

The invention relates to the field of material-surface modification, particularly to a special material for stainless steel substrates composite coating for a thin valve plate and a preparation method of the special material. According to the special material for the stainless steel substrate composite coating for the thin valve plate, stainless steel metal powder is used as a composite coating bonding phase, and the wear resistance is improved through the introduction of hard-phase particles, wherein the stainless steel metal powder is 316L stainless steel powder, the hard-phase particles are WC, and the composite coating comprises the following elements in percentage by weight: 8-9% of Cr, 5-6% of Ni, 1-2% of Mo, 42-43% of W, 2-3% of C, and the balance of Fe. The wear-resistant corrosion-resistant stainless steel substrate composite coating which is disclosed by the invention, is prepared by a method based on cold spraying, the characteristic of low-temperature deposition of the cold spraying is kept, so that undesirable phenomena, such as decomposition, oxidation, phase transition, crystal grain growth and the like, of the coating material, which are caused by high-temperature deposition techniques, such as laser cladding, hot spraying and the like, are avoided.

The invention discloses a leaching repair system for heavy metal contaminated soil. A forestry and agricultural waste hydrolytic acidification tank is connected to a rotary cylinder heavy metal leaching reactor, a mud and water mixing pool is arranged below a leaching product outlet of the rotary cylinder heavy metal leaching reactor, the mud and water mixing pool is connected to a horizontal spiral centrifuge, a liquid outlet of the horizontal spiral centrifuge is connected to a submerged evaporator, the forestry and agricultural waste hydrolytic acidification tank is also connected to an acidizing fluid anaerobic reaction tank, a biogas outlet on the top of the acidizing fluid anaerobic reaction tank is connected to a fuel gas inlet of a hot blast heater, and an air outlet end of the hot blast heater extends to the inner bottom end of the submerged evaporator through an air duct. According to the system disclosed by the invention, organic acid liquor generated by anaerobic fermentation of forestry and agricultural wastes such as kitchen wastes and crop straws is taken as a leaching agent for repairing the heavy metal contaminated soil, has relatively strong scavenging activity to heavy metals, and is good in biodegradability and can improve the soil structure. Furthermore, nutrients such as organic matters, total nitrogen, total phosphorus and effective phosphorus are improved to different extents.

The present invention is directed to an intermediate composition for producing a muscle tissue matrix suitable for implantation in humans, comprising shredded, allogeneic human muscle tissue that has been combined with an aqueous carrier, preferably a biocompatible acid solution, to form a muscle tissue slurry having a viscosity within the range of 1 centistoke to 20,000 centistokes measured at 25° C. In another aspect, the present invention is directed to a tissue implant comprising a human muscle tissue matrix.

The invention discloses a medicament for in-situ repair of high-concentration polycyclic aromatic hydrocarbon polluted soil and application thereof; effective components are micro-nano iron sheets andsodium persulfate; and the high-activity micro-nano iron sheets are used for efficiently catalyzing sodium persulfate to generate high-oxidation free radicals so as to effectively degrade high-concentration PAHs (201.1 mg/kg) in soil. The medicament formula of the micro-nano iron sheets activating persulfate not only can efficiently degrade PAHs under laboratory underbrush conditions, but also can quickly and efficiently repair the high-concentration PAHs polluted soil in situ under the pilot scale test scale (360 cubes of soil); and the enzyme activity index of the repaired soil under environmental protection is not prominently changed. The repair medicament is suitable for in-situ field repair of the high-concentration PAHs polluted soil, is high in efficiency, convenient to operate andenvironment-friendly, and provides broad prospect for repair of the high-concentration PAHs polluted soil.

A process for repairing a compressor rear frame of a gas turbine engine. The process entails removing a seal flange from the inner casing wall of the frame to define an annular face on the casing wall, and fabricating a replacement flange to have an annular face with a radial width greater than the radial width of the annular face of the casing wall. The faces of the flange and wall are mated to form a joint, a penetration-enhancing flux is deposited adjacent the joint, and a single-pass gas tungsten arc welding operation is performed to form a root weldment that extends completely through the joint. The flux is then removed and a gas tungsten arc welding operation is performed to deposit a filler on the root weldment and form a second weldment that completely overlays but does not penetrate through the root weldment.

The invention relates to a patch material for an asphalt pavement and a preparation method thereof. A microcrystalline wax-modified cold patch asphalt mixture is characterized by being prepared from aggregate, filler, asphalt, a diluting agent and microcrystalline wax in the mass ratio of 100:(1-10):(3-6):(0.5-2):(0.02-0.15). The preparation process is simple and low in cost; and the prepared cold patch asphalt mixture has the characteristics of high strength and long service life. The cold patch asphalt mixture is especially suitable for patching road pit slots and has the advantages of convenience and quickness in construction, no closing for traffic, no pollution to the environment and no limit from weather conditions.

The invention provides environment-friendly anticorrosive paint and a preparation method thereof. The environment-friendly anticorrosive paint comprises a main agent and a curing agent. The main agent is prepared from, by weight of 100 parts, 39-50 parts of low-viscosity solvent-free epoxy resin, 4-8 parts of diluents, 5-15 parts of toughening resin, 0.5-15 parts of toner, 10-40 parts of filler, 5-15 parts of low-viscosity epoxy ester resin and 0.5-1.5 parts of a thixotropic agent. The curing agent is modified amine resin.

The invention discloses a high-purity nickel-based high-temperature alloy and a preparation method of spherical powder of the high-purity nickel-based high-temperature alloy. The alloy comprises the following steps of selecting high-purity metal ingredients, smelting in a vacuum induction suspension smelting furnace, realizing pure smelting by controlling parameters such as smelting vacuum degree, refining temperature, time and the like, then pouring to obtain a steel ingot, and preparing the steel ingot into a bar; carrying out smelting, atomizing and powdering on the bar through EIGA and PREP technologies to obtain spherical metal powder; adopting vibrating screening and airflow classification, and classifying spherical powder under the protection of inert gas. According to the method, the content of nonmetal impurities is effectively controlled through raw material smelting control, atomization process control and post-treatment control, so that chemical elements of the powder have extremely high purity, and the high-purity high-temperature alloy spherical powder is not prone to generating cracks and other defects in the subsequent laser additive printing and laser cladding process and is good in binding force, high in strength, good in toughness and good in mechanical property, and the powder can be used for repairing high-end parts.

The invention provides a cell microcarrier and a preparation method thereof; the preparation method comprises the steps of stirring and reacting silane coupling agent-modified hydroxyapatite and amino acid-N-carboxylic anhydride in an organic solvent to obtain polyamino acid-grafted hydroxyapatite; mixing the polyamino acid-grafted hydroxyapatite with an easily-volatile organic solvent to obtain mixed solution; mixing and stirring the mixed solution with water-soluble polymer compound solution, removing the easily-volatile organic solvent, and washing with water to obtain the cell microcarrier. Compared with the prior art, the cell microcarrier and the preparation method thereof have the advantages that in-situ ring-opening polymerization of amino acid-N-carboxylic anhydride monomers is initiated through amino surface-modified hydroxyapatite, amino acids are polymerized in situ to the surface of hydroxyapatite, and the prepared cell microcarrier is free of other polyester materials, effectively combines the advantages of hydroxyapatite and polyamino acid, facilitates the adhesion and proliferation of cells, and is suitable for in-vitro cell amplification and in-vivo bone tissue repairing.