31results about How to "High strength connection" patented technology

An anchoring system for cavity walls is disclosed. The system includes a stud-type wall anchor and a wire formative veneer tie. The stud has a driver head, a dual-diameter barrel, and a driven tip. A flange at the juncture of the two barrels houses an interior seal; and a flange under the driver head, an exterior seal. The smaller diameter barrel is coextensive with the drywall installation; and the length of the larger diameter barrel, with the rigid insulation. The interior seal seals the insertion point into the drywall installation; and the exterior seal, the opening of the anchor-receiving channel. The interior seal and the larger barrel of the anchor fill the anchor-receiving channel and stabilize the wall anchor. Also, the wall anchor is clamped in place by the seals. The stud-type anchor operates with a variety of veneer ties for different applications.

An anchoring system for cavity walls is disclosed. The system includes a stud-type wall anchor and a wire formative veneer tie. The stud has a driver head, a dual-diameter barrel, and a driven tip. A flange at the juncture of the two barrels houses an interior seal; and a flange under the driver head, an exterior seal. The smaller diameter barrel is coextensive with the drywall installation; and the length of the larger diameter barrel, with the rigid insulation. The interior seal seals the insertion point into the drywall installation; and the exterior seal, the opening of the anchor-receiving channel. The interior seal and the larger barrel of the anchor fill the anchor-receiving channel and stabilize the wall anchor. Also, the wall anchor is clamped in place by the seals. The stud-type anchor operates with a variety of veneer ties for different applications.

A high-strength thermally-isolating surface-mounted anchoring system for a cavity wall is disclosed. The thermally-isolated anchoring system is adaptable to varied structures, including high-span applications, and for use with interlocking veneer ties and reinforcement wires. The anchoring system includes an anchor base and a stepped cylinder which sheaths the mounting hardware to limit insulation tearing and resultant loss of insulation integrity. The anchoring system is thermally-isolated through the use of a series of strategically placed compressible nonconductive fittings. Seals are formed which preclude penetration of air, moisture, and water vapor into the wall structure.

A high-strength thermally-isolating surface-mounted anchoring system for a cavity wall is disclosed. The thermally-isolated anchoring system is adaptable to various structures, including high-span applications, and for use with a split tail veneer tie. The anchoring system includes an anchor base and a stepped cylinder which sheaths the mounting hardware to limit insulation tearing and resultant loss of insulation integrity. The anchoring system is thermally-isolated through the use of multiple strategically placed compressible nonconductive seals or elements. Seals are also provided to preclude penetration of air, moisture, and water vapor into the wall structure.

The invention relates to joined fiber reinforced composite structures with continuity of fiber reinforcement across adhesive-to-substrate boundaries. Use of a thermal gradient to control the extent of infusion of resin blocking substances into fiber reinforced material, and subsequent resin infusion and resin blocking substance removal, during manufacture of components to be subsequently bonded, provides partially exposed reinforcing fibers which serve to reinforce a subsequently formed joint or boundary.

The invention provides a method for introducing the design of laminated compound interlayers to enable magnesium alloy and aluminium alloy to be connected. The method comprises the steps that first, CuNi alloy thin films are deposited on the surface of the magnesium alloy and the surface of the aluminium alloy to be used as obstructing interlayers for preventing surface oxidation of aluminium and magnesium matrixes and intermetallic compound generation; then Ag is added between CuNi alloy thin film layers to lower the connecting temperature of a CuNi interlayer, and a CuNi-Ag-CuNi laminated compound interlayer is formed; and then a to-be-connected magnesium alloy piece and a to-be-connected aluminium alloy piece of the compound interlayer are assembled and are subjected to heat preservation for 0-750 s at the temperature of 380-420 DEG C. According to the method, the compound interlayer avoids the generation of Mg-Al-based intermetallic compounds with connecting interface brittleness and other intermetallic compounds; an electric field activation connecting technology is adopted, so that quick low-temperature and high-strength welding of the magnesium alloy and the aluminium alloy is achieved under vacuum, the connecting temperature is lowered, the connecting technology cycle is shortened, and the reliability of connecting joints is improved.

The present invention is production process of high strength self-sealing composite aluminum-plastic pipe union. The production process includes producing main pipe union body and auxiliary parts, and has the specific steps of: 1. selecting stainless steel for producing pipe union; 2. machining at least one external thread on the main pipe union body, forming conic sealing stage of 3-7 deg cone apex angle, and forming end port with outer diameter greater than the inner diameter by up to 1.5 mm and height between the inner diameter and the outer diameter of the composite pipe; and 3. machining one locking stage comprising inner conic surface and outer conic surface on one end of the locking nut, with the locking stage possessing inner surface of the same cone apex angle as the outer surface of the sealing stage.

The invention relates to the field of high temperature alloy hot end part repairing, in particular to a high temperature alloy hot end part large gap defect transient state liquid phase infiltration repairing method. The method includes (1) removing an oxide layer and the like on the surface of a defect of a high temperature alloy hot end part to enable the defect position to have metal luster; (2) adopting nickel-base or cobalt-base alloy powder to fill the defect space, conducting molding in a plasticizing mode and then conducting high temperature sintering; (3) arranging the nickel-base alloy powder subjected to B Zr or Hf activating treatment above filling metal, conducting high temperature transient state liquid phase infiltration to achieve compacting; (4) conducting polishing and clearing; (5) conducting homogenizing treatment on the high temperature alloy hot end part under high temperature. The method can solve the problem that Al+Ti high temperature alloy hot end part is low in large gap defect repairing strength and easy to scrape, achieves high strength connection, is high in repairing yield and can overcome large gap defects such as crack, ablation holes and corrosion pits of hot end parts of aero engines, electric gas turbines, naval vessel gas turbines and caused in a service use process.

The invention discloses a Mn-Cu-based welding wire and its preparation method and application. The Mn-Cu-based welding wire comprises the following components in mass percentage: copper 35-43%, manganese 50-60%, aluminum 0.5-2%, tin 0.5-1%, zinc ≤ 3%, chromium ≤ 0.9%. The welding wire preparation method includes: charging; melting; refining; casting; homogenizing; forging; extruding; drawing; annealing. The welding wire in the present invention is mainly used for the welding of Mn-Cu alloy and Mn-Cu alloy or steel. The welding wire of the invention solves the problem of severe welding hot cracks during fusion welding of Mn-Cu alloy and steel, resulting in poor mechanical properties of weld metal and joints. The weld metal has higher damping performance after heat treatment using the existing alloy welding wire. By realizing the connection of Mn-Cu alloy and steel to obtain high-strength and high-damping composite materials, the application prospects of Mn-Cu alloy can be broadened.

The invention discloses a titanium alloy diffusion bonding method assisted by ultrasonic impact surface modification, which involves ultrasonic impacting the surface of a titanium alloy plate, and then heating and diffusing the titanium alloy plate, so that the joints can be tightly bonded and the high-strength connection of the titanium alloy itself is realized. The invention adopts the method for obtaining the crystal grain refinement layer through ultrasonic shock surface modification, increases the atomic diffusion rate and reduces the titanium alloy diffusion connection parameters, and realizes the low temperature diffusion connection of the titanium alloy. The method is easy to operate, has good adaptability, high repeatability, is green and energy-saving, and can greatly improve industrial production efficiency.

The invention discloses a silicon carbide joint and a metal penetration connection method thereof. The metal penetration connection method includes the following steps: S1, preparing a first metal raw material and a second metal raw material to form a connecting material; S2, disposing the connecting material in a Between the connection surfaces of the two silicon carbide pieces, a sandwich structure is formed with the two silicon carbide pieces; S3, the sandwich structure is placed in a sintering environment with a metal phase and sintered; during the sintering process, the metal phase infiltrates into the connecting material and fill in the pores generated in the connecting material; S4, after sintering, the connecting material is densified to form a connecting layer, and two silicon carbide parts are connected to form a silicon carbide joint. The metal infiltration connection method of the silicon carbide joint of the present invention penetrates into the connecting material with the metal phase, realizes the densification of the connecting material, obtains a high-strength connection and a silicon carbide joint with good air tightness, and reduces the requirements on the shape and structure of silicon carbide. .

The invention discloses a diffusion welding method of titanium or titanium alloy and stainless steel. A plate pack having the same material quality with welded workpieces is welded into a block structure in advance. The plate pack is lengthways cut into slices along the block structure to form a structural middle layer 7. The middle layer is processed and then vertically arranged between the welded workpieces for diffusion welding. Because the middle layer having the same material quality with the workpiece is adopted, a joint heterogeneous interface combination mode is changed into a combination mode that half heterogeneous workpieces are directly combined and half heterogeneous workpieces are combined, and the titanium or titanium alloy and stainless steel workpieces are in high-intensity connection. In the diffusion welding method, the tensile strength of the joint is improved to above 80% from 50-70%(week side workpiece intensity) obtained by the direct diffusion welding technology, and various types of titanium or titanium alloy and stainless steel can be in high-intensity connection.

The invention provides a device and method for sealing the end part of a deformable metal foil material structure, and belongs to the field of precise connection of deformable ultra-thin metal structures, and particularly relates to a sealing device and a sealing method for the end part of a deformable metal foil material structure. The invention aims to solve the problem that the deformable metalfoil material structure and a flange cannot be reliably connected. The device for sealing the end part of the deformable metal foil material structure comprises a high-elasticity metal foil material,a lock catch, a flange plate and a plurality of positioning pieces. The sealing method comprises the following steps: 1, a high-elasticity thin-wall metal ring is formed; 2, the high-elasticity thin-wall metal ring is horizontally placed; 3, the end part of the deformable ultra-thin metal foil material structure is supported into a circle; and 4, the deformable metal foil material structure is arranged on a flange plate, and keeps warm in a nitrogen atmosphere in a heat treatment furnace and is cooled to the room temperature along with the furnace, so that the deformable ultra-thin metal foil material structure with the sealed end is obtained. The device is mainly used for sealing the end part of the deformable metal foil material structure.

The invention provides a quick pipeline connecting structure and a mounting and dismounting method, and belongs to the field of pipelines. The problem that existing pipeline connecting is low in strength and poor in sealing performance is solved. The quick pipeline connecting structure comprises an upper pipeline, a lower pipeline and a connecting device. The connecting device comprises an upper connecting component connected with the upper pipeline, and a lower connecting component connected with the lower pipeline. The upper connecting component comprises an upper quick connecting pipe, an upper connecting pipe and an upper connecting plate. The upper connecting component further comprises an upper fastener penetrating through the upper connecting pipe and the upper pipeline to be fixed.The lower connecting component comprises a lower quick connecting pipe, a lower connecting pipe and a lower connecting plate, and further comprises a lower fastener penetrating through the lower connecting pipe and the lower pipeline to be fixed. A circular-ring-shaped upper baffle ring is fixed to the outer wall of the bottom end of the upper quick connecting pipe coaxially. A circular-ring-shaped lower baffle ring is fixed to the inner wall of the top end of the lower quick connecting pipe coaxially. The quick pipeline connecting structure further comprises an adjusting pipe sleeving the outer side of the upper quick connecting pipe, the inner diameter of the upper quick connecting pipe is the same as the outer diameter of the lower quick connecting pipe, and a circular-ring-shaped sealing pad is fixed to the top end of the lower baffle ring. The connecting structure can be used for connecting pipelines in a high strength and high sealing performance manner.