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101results about How to "Good "processability" patented technology

Preparation method of titanium-steel single-sided composite board

ActiveCN102773254AReasonable process designLow requirements for welding conditionsMetal rolling arrangementsLayer removalTechnical design
The invention discloses a preparation method of a titanium-steel single-sided composite board, comprising the following processing steps of: (1) respectively selecting two titanium plates with same size and two steel plates with same size and carrying out rust and oxide layer removal treatment on the surfaces of the plates; (2) assembling to form multiple layers of symmetrical combined blank sequentially including a steel plate, a transition layer, a titanium plate, a parting agent, a titanium plate, a transition layer and a steel plate, wherein a gap exists between the periphery of the titanium plate and a barrier strip in the combined blank; (3) compressing the combined blank and respectively welding the barrier strip with a first steel plate and a second steel plate to form a closed cavity among the first steel plate, the second steel plate and the barrier strip, drilling holes in the barrier strip and welding a steel tube in the holes, and communicating the steel tube and the closed cavity; (4) conveying the combined blank into a heating furnace to heat and vacuumizing; (5) sealing the outer end of the steel tube and then conveying the combined blank into a rolling mill; and (6) cutting the combined blank after rolling to obtain the titanium-steel single-sided composite board. The preparation method disclosed by the invention is rational in technical design and low in production cost.
Owner:河南盛荣金属复合新材料有限公司

Manufacturing method of titanium-steel-titanium two-sided composite plate

ActiveCN102773670AReasonable process designLow requirements for welding conditionsSheet steelTitanium
The invention discloses a manufacturing method of a titanium-steel-titanium two-sided composite plate. The manufacturing method comprises the following processing steps: (1) four titanium plates with the same dimension and three steel plates with the same dimension are selected respectively, and rust and oxide layer removal processing is performed on the surfaces of the titanium plates and the steel plates; (2) a multilayer combination blank with three layers of steel plates, four layers of titanium plates and four layers of transition layers is formed through assembly, and gaps are arranged between the peripheries of the titanium plates and barrier strips in the combination blank; (3) the combination blank is pressed tightly and enables the barrier strips to be welded to a first steel plate and a third steel plate so as to enable the first steel plate, the second steel plate and the inner portions of the barrier strips to form a closed cavity, holes are drilled on the barrier strips, steel tubes are welded in the holes, and the steel tubes are communicated with the closed cavity; (4) the combination blank is sent to a heating furnace to be heated and vacuumized; (5) the combination blank is sent to a rolling mill to be rolled after the outer ends of the steel tubes are sealed; and (6) one titanium-steel-titanium two-sided composite plate and two titanium-steel single-sided composite plates are obtained by slitting the combination blank after the combination blank is rolled. The manufacturing method of the titanium-steel-titanium two-sided composite plate is reasonable in design and low in production cost.
Owner:河南盛荣金属复合新材料有限公司

Turbine blade trailing edge turbulent flow half-wedge type seam cooling structure with array pin fins

The invention discloses a turbine blade trailing edge turbulence half-slit cooling structure with an array of pin ribs. The array of pin ribs is applied to the half-slit wall surface, and the flow turbulence structure is passed without increasing the outflow of the gas film. Improve the convective heat transfer coefficient and heat transfer area of ​​the air film, and enhance the convective heat transfer intensity of the half-slit air film cooling, thereby improving the comprehensive cooling effect of the trailing edge of the blade. Turbine blade trailing edge turbulent half-split cooling structure with continuous array of needle ribs cuts off part of the wall on the pressure surface of the blade trailing edge, retains the wall on the suction side of the blade trailing edge and separates the partition ribs to form multiple half-splits Slit structure, the cooling air flow is ejected from the cold flow outlet and covers the split wall of the trailing edge to form a cooling air film. The structure is simple; the maximum temperature and average temperature of the suction surface can be effectively reduced, and high-temperature ablation of the suction surface of the turbine blade can be avoided. The straight rib structure is arranged on the half-slit wall surface, which has good heat transfer characteristics and good processing feasibility.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Turbine blade tail edge turbulence half-crack cooling structure with continuous straight ribs

The invention discloses a turbine blade trailing edge turbulence semi-slit cooling structure with continuous straight ribs. The straight rib structure is applied to the wall surface of the trailing edge half-slit. The flow structure improves the convective heat transfer coefficient and heat transfer area of ​​the air film, and enhances the convective heat transfer intensity of the half-slit air film cooling, thereby improving the comprehensive cooling effect of the trailing edge of the blade. The turbulent half-split cooling structure is to cut off part of the wall surface on the pressure surface of the blade trailing edge, and retain the wall surface on the side of the suction side of the blade trailing edge and the spaced partition ribs to form a plurality of half-slit structures. The design is reasonable and the structure is simple; its characteristics are The cooling air flow is ejected from the cold flow outlet and covers the half-slit wall surface to form a cooling air film, which can effectively reduce the maximum and average temperature of the suction surface and avoid high-temperature ablation of the suction surface of the turbine blade. A simple straight rib structure is arranged on the half-slit wall surface, which has good heat transfer characteristics and good processability.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Exhaust pump

Provided is an exhaust pump that is suitable for enhancing durability, processability of connecting opening portions in a pump production stage, and evacuation performance. An exhaust pump includes: a cylindrical rotating member; a support unit of the cylindrical rotating member; a driving unit for rotationally driving the cylindrical rotating member; an outer cylindrical fixed member disposed so as to surround the outer periphery of the cylindrical rotating member; an inner cylindrical fixed member disposed so as to be surrounded by the inner periphery of the cylindrical rotating member; a helical outer thread groove exhaust passage provided between the cylindrical rotating member and the outer cylindrical fixed member; a helical inner thread groove exhaust passage provided between the cylindrical rotating member and the inner cylindrical fixed member; connecting opening portions that are opened in the cylindrical rotating member and that lead a part of gas existing in the vicinity of the outer periphery of the cylindrical rotating member towards the inner thread groove exhaust passage. A gap between an upstream end of the connecting opening portions and lowermost stage rotor blades provided at the outer periphery of the cylindrical rotating member which is located upstream of the connecting opening portions has a dimension equal to or greater than a dimension that enables insertion, into the gap, of a tool for opening the connecting opening portions.
Owner:EDWARDS JAPAN

Thermosetting membrane for adhesion of bulletproof fiber and processing method of thermosetting membrane

The invention discloses a thermosetting membrane for the adhesion of bulletproof fiber and a processing method of the thermosetting membrane, and belongs to the field of high-molecular materials. The thermosetting membrane is prepared from the following materials in parts by weight: at least (a) 40-50 parts of film-forming resin, (b) 13-15 parts of plasticizing agents for the film-forming resin, (c) 30-45 parts by weight of curable resin, (d) 5-10 parts of cured resin curing agents and (e) 0.05-2 parts of surface treating agents. The method disclosed by the invention can be used for preparing the thermosetting membrane with good film-forming property, the uniform accuracy of +/- 0.001 mm, the crosslinking degree less than 5% and the thickness of 0.05-0.2 mm, has the advantages of simple preparation process, no solvent volatilization, good sizing uniformity, uniformity in interface adhesion, and the like and fundamentally overcomes the defects of low production efficiency, serious environment pollution, poor sizing uniformity, product fiber embrittlement and the like which are brought by using a wet method process of a liquid adhesive material. The thermosetting membrane disclosed by the invention is mainly applied to the adhesion of single materials, namely bulletproof aramid fiber materials, carbon fibers and the like, or composite materials and is applied to the fields of aviation, war industry, civil use and the like in production of bulletproof clothes, bulletproof helmets and the like.
Owner:宣英男 +1
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