9results about How to "Improve tissue performance" patented technology

The application belongs to the technical field of titanium alloy processing, and discloses a preparation method of TC4 titanium alloy bar for aerospace fasteners. The preparation method adopts the full-process temperature control and rolling production line to roll the large single heavy hot-rolled coil with uniform rolling organization and consistent performance on the basis of electron beam cold hearth furnace and vacuum consumable arc furnace smelting, including ingot smelting, forging, polishing, first rolling, centerless peeling, pickling and polishing, second rolling and the like. The finished bar with a diameter of 6-21 mm is prepared through drawing, peeling, sawing, heat treatment and other machining processes. Compared with the preparation of finished bar by transverse rolling mill hot-rolled bar, the TC4 titanium alloy bar for fasteners prepared by the method has more uniform organization performance and higher microstructure grade, and is more in line with the service requirements of the fastener factory upsetting and the finished fastener.

The application relates to the technical field of titanium alloy deformation heat treatment and microstructure performance regulation, and discloses a multi-direction forging method with temperature and deformation amount of alpha+beta titanium alloy being cooperatively and step by step reduced, which adopts a process of step by step temperature reduction and three-direction vertical deformation matching: square blank of alpha+beta titanium alloy is prepared and surface cleaning is carried out, first, compression deformation of 40%-50% is carried out along the X direction under the condition that the temperature is 5-20 DEG C higher than the beta transformation temperature of the alloy, then, compression deformation of 30%-40% is carried out along the Y direction after the temperature is reduced to the range of 50 DEG C below the beta transformation temperature, and then, compression deformation of 20%-30% is carried out along the Z direction after the temperature is continuously reduced to the range of 100 DEG C below the beta transformation temperature, the three directions are perpendicular to each other, and air cooling is carried out to room temperature after deformation; the application solves the problems in the prior art that the alpha+beta titanium alloy forging cannot consider the deformation plasticity and microstructure refining effect, the performance promotion depends on component adjustment, the process is complex, and the effect of the synergistic promotion of strength and plasticity is poor.

The application discloses a pulse current-based crack-free heat treatment method for additive manufacturing of high-temperature alloy, and belongs to the technical field of heat treatment of additive manufacturing of high-temperature alloy. The application aims to solve the technical problem that nickel-based high-temperature alloy manufactured by additive manufacturing is prone to cracking during the heating process of stress relief heat treatment. The application directly heats the workpiece by using pulse current, and the average heating rate of the workpiece is not less than 100 DEG C / s by applying high-density pulse current, so that the superfast heating far exceeding traditional furnace heat treatment is realized, thereby the precipitation of harmful phase at the grain boundary during the heating process is inhibited, and the cracking problem in the stress relief heat treatment process is fundamentally avoided. The method is especially suitable for nickel-based high-temperature alloy such as IN738LC.

This invention discloses a method for preparing oxygen-free copper, relating to the field of metallurgical technology, comprising the following steps: Step S1, raw material pretreatment; Step S2, gradient melting and deoxidation; Step S3, gradient refining; Step S4, directional solidification casting; Step S5, heat treatment. The oxygen-free copper prepared by this method exhibits good mechanical properties, excellent electrical conductivity and heat resistance, and low oxygen content.

The present application relates to the technical field of metal material hot working, in particular to a pulse electromagnetic force application mode decision method for super high strength steel hot forming. The method comprises obtaining geometric characteristic parameters of a part to be formed, initial performance parameters of a plate and process target performance parameters; inputting the above parameters into a pre-trained decision model; outputting pulse electromagnetic force application control parameters for the hot forming process from the decision model, the control parameters including a time sequence scheme, a spatial action mode and an energy intensity scheme of pulse electromagnetic force application; and controlling a pulse electromagnetic force generating device to perform corresponding operations according to the control parameters. The method realizes intelligent and global collaborative decision of pulse electromagnetic force application timing, spatial action position and energy size through an artificial intelligence model, can automatically generate an optimal application strategy matched with a specific part and process condition, and significantly improves the forming quality, microstructure performance and process consistency of super high strength steel hot formed parts.

This invention relates to the field of sheet metal processing equipment, and discloses a multi-source ultrasonic friction stirring processing device, including a fixed outer cylinder, a stationary shoulder, an ultrasonic probe, an amplitude transformer, a transducer, a first ultrasonic generator, a tool holder, a stirring head, an amplitude transformer transducer, a conductive slip ring, a second ultrasonic generator, and a feeding mechanism. The lower end of the fixed outer cylinder is connected to the stationary shoulder. The tool holder is located inside the fixed outer cylinder. The stirring head is connected to the lower end of the tool holder, and the lower end of the stirring head is flush with the lower end of the stationary shoulder. A stirring needle is provided at the lower end of the stirring head. The ultrasonic probe, amplitude transformer, transducer, and first ultrasonic generator are connected sequentially, and the ultrasonic probe is connected to the stationary shoulder. The amplitude transformer transducer is located on the tool holder. The conductive slip ring is sleeved and connected to the outside of the amplitude transformer transducer and is electrically connected to the second ultrasonic generator. The feeding mechanism communicates with the interior of the stationary shoulder. This invention can smoothly promote material softening and flow, reduce material rheological stress, and prevent a significant temperature increase.

This invention belongs to the field of aluminum frame manufacturing technology for solar photovoltaic panels. Specifically, it proposes a manufacturing process for aluminum frame profiles for solar photovoltaic panels, including: selecting aluminum alloy as the raw material and pre-treating it; placing the raw material in an extruder, setting the extrusion temperature to 400-500℃ and the extrusion ratio to 20-30, and performing extrusion molding using an extrusion die; after the profile cools and hardens, opening an injection groove on the inner surface of the profile's connecting cavity to facilitate subsequent bonding and assembly with the photovoltaic panel; immersing the profile in an electrolyte for anodizing; placing the anodized profile in a sealing liquid for sealing; inspecting the sealed profile, and conveying profiles that meet the inspection standards to an assembly table for assembly with the photovoltaic panel. This invention improves the overall performance of the aluminum frame profile by simultaneously quenching and anodizing the profile during the extrusion molding process.

This utility model discloses a heat treatment device for a large-megawatt planetary carrier in wind power. The heat treatment device includes a heat treatment furnace, an automatic lifting furnace door, a detachable heat treatment trolley, a liftable air-blocking device, a trolley running track, and a trolley rotation lifting air-cooling device. The heat treatment device has two sets, left and right. The automatic lifting furnace door is located on the side near the trolley rotation lifting air-cooling device. The detachable heat treatment trolley is placed in the cavity inside the heat treatment furnace. A liftable air-blocking device is installed below the detachable heat treatment trolley. The trolley rotation lifting air-cooling device is located on one side of the heat treatment furnace. By introducing the detachable heat treatment trolley, the automated lifting furnace door, and the air-cooling device, this equipment can achieve efficient integration of heat treatment and air cooling, reducing manual operation time and labor intensity, and significantly improving overall production efficiency.

The application discloses a kind of semi-solid extrusion forming thin-walled component device and method, it is related to metal processing technical field, the device of semi-solid extrusion forming thin-walled component disclosed in the application includes preprocessing unit, extrusion unit and heat treatment unit, preprocessing unit includes first gradient heating temperature control device and preprocessing mould, extrusion unit includes second gradient heating temperature control device and extrusion mould, heat treatment unit includes third gradient heating temperature control device and heat treatment carrier, the method of semi-solid extrusion forming thin-walled component disclosed in the application includes obtaining cylindrical semi-solid blank, preheating, spraying lubricant, remelting heating, extruding thin-walled component and heat treatment;Semi-solid extrusion forming thin-walled component device and method disclosed in the application reduce the extrusion force requirement, with good forming effect.