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

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.

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 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.