14 results about "Duralumin" patented technology

A duralumin credit card, according to an embodiment of the present invention, may comprise: a metal sheet made of metal; a first duralumin flake ink layer printed on the metal sheet by means of silkscreen printing and including duralumin flake powder; and a second duralumin flake ink layer printed on the bottom surface of the metal sheet by means of indoor screen printing and including duralumin flake powder.

The invention relates to the technical field of friction stir welding static shaft shoulder tools, in particular to a friction stir welding static shaft shoulder tool aluminum scrap cleaning device which comprises a mounting plate. And two scraping mechanisms. According to the device, the two scraping mechanisms are fixedly connected to the mounting plate, duralumin skimmings on the stirring head and the static shaft shoulder body are conveniently scraped through the two scraping mechanisms, and when the stirring head and the static shaft shoulder body move to the position between the two brushing mechanisms, the duralumin skimmings on the stirring head and the static shaft shoulder body are scraped; the two brushing mechanisms are used for conveniently brushing away aluminum skimmings in the stirring head and the static shaft shoulder body and residual aluminum skimmings on the surfaces of the stirring head and the static shaft shoulder body, then the cleaning effect on the stirring head and the static shaft shoulder body is improved, and the two scraping mechanisms and the two brushing mechanisms can be suitable for static shaft shoulder tool bodies, stirring heads and static shaft shoulder bodies of different sizes; and the practicability of the aluminum scrap cleaning device for the friction stir welding static shaft shoulder tool is improved.

The invention belongs to the technical field of aerial insulated cables, and discloses an aerial insulated cable conductor structure design method and system, and the method comprises the steps: S1, calculating a conductor compression effective cross section through a conductor unit length resistance standard which is a low resistance requirement for an L3-type duralumin wire aerial insulated cable; s2, calculating the total cross section required by a single wire before the conductor is compressed according to the extension coefficient of the aluminum wire; s3, selecting the number of monofilaments of each layer of the conductor and calculating the filament diameter of the monofilaments according to the standard requirement and the regular stranding criterion of the stranded wire; s4, calculating the outer diameter of the conductor; s5, calculating the die size of each layer of the conductor; s6, calculating a control section range after the conductor is compressed; and S7, calculating the actual cross section of the compressed conductor. According to the method, through the structured calculation and verification process, the design process is converted from empirical estimation to accurate parameterization calculation, and the accuracy and controllability of conductor structure design are remarkably improved.

The scrap iron removing device comprises a duralumin bottom plate, and the lower end face of the duralumin bottom plate is connected with a scrap iron adsorption assembly. The two ends of the duralumin bottom plate are each connected with a duralumin base through a fixing assembly. The two duralumin bases are connected to a charging car. The scrap iron adsorption assembly comprises a plurality of strong magnets and a plurality of countersunk screws; the strong magnet is connected to the lower end face of the duralumin bottom plate through the countersunk screw. The fixing assembly comprises a screw rod, threaded holes are formed in the butt joint portions of the duralumin base and the duralumin bottom plate, the screw rod penetrates through the two threaded holes to connect the duralumin base and the duralumin bottom plate together, the lower end of the screw rod is connected with a nut, the upper end of the screw rod is connected with a check ring, and a hand-screwing nut is connected to the check ring in a clamped mode. The ground scrap iron cleaning device can relieve the fatigue degree of workers for ground scrap iron cleaning work.

The application discloses a stern shaft extraction method for checking a stern tube rear bearing, and the stern shaft and a first intermediate shaft are suspended above a duralumin plate platform in a cabin by using a chain block and an eye plate and are not interfered with main engine auxiliary equipment, a second intermediate shaft is sunk and placed on a sleeper arranged on a double-layer bottom plate, the stern shaft can be extracted from the cabin without opening a hole in a hull plate, the stern tube rear bearing can be quickly checked, space can be saved, and the stern tube rear bearing can be replaced.

The utility model relates to a thermal torsion protection die for a titanium alloy ribbed tube. The thermal torsion protection die comprises a hard aluminum alloy die body, the mold body is a hollow cylinder body; four axial notch grooves are uniformly formed in the circumference of the inner wall of the mold body; wherein the die body is made of a hard aluminum alloy material. According to the utility model, by adjusting the thermal torsion mold, periodic defects of the rib top of the titanium alloy pipe after thermal torsion can be effectively avoided, operators are prevented from being in contact with toxic and harmful substances in the production process, the investment of saponification and phosphorization equipment is reduced, the time cost for subsequently removing MoS2 is reduced, and the thermal torsion mold has a huge input-output ratio and is suitable for batch use.

The application provides a TiB 2p / Al-Mg-Si porcelain duralumin alloy, a preparation method and application thereof, the method comprises the following steps: component design; smelting: simultaneously heating and melting Al-5%TiB2 precursor and Al-3%B intermediate alloy, ultrasonic vibration treatment, heat preservation, alloying, refining, pouring; solid solution treatment; and the TiB 2p / Al-Mg-Si porcelain duralumin alloy is prepared after artificial aging treatment. Compared with the pure alloy, the TiB 2p / Al-Mg-Si porcelain duralumin alloy of the application has the peak aging region widening effect, the process window of artificial aging is widened, and the best mechanical property and electrical conductivity are obtained.

To provide a pipe connection component capable of suppressing a production cost while ensuring dimension accuracy, to reduce burden on an environment, and a manufacturing method for a pipe connection component.SOLUTION: A pipe connection component 100 is configured to connect a pipe for supplying lubricant or liquid other than the lubricant. The pipe connection component 100 is provided with a male screw part 20 for fixing other pipe connection components on an outer surface of the body part 10, and / or a female screw part 12 for fixing the other pipe connection components on an inner surface of the body part 10, and is made of duralumin or a lead-free, free-cutting aluminum alloy.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of additive manufacturing, and discloses an arc fuse additive manufacturing invar steel part trajectory planning method and application, and the method comprises the following steps: partitioning the wall thickness of a target part, and planning a short edge scanning trajectory according to the parameters of the target part after partitioning, the trajectory planning method is used for carrying out arc fuse additive manufacturing on the invar steel part. According to the method, after the short edge scanning track of the target part is partitioned, the incomplete fusion defect in the printing process is further reduced while the forming rate of the invar steel part is remarkably increased, the structure is more stable, and the cost is reduced.

The utility model relates to the technical field of heat sealing auxiliary equipment, and provides a duralumin heat sealing station material heat insulation device during short-time shutdown of aluminum-plastic-aluminum equipment, which comprises a heat sealing machine body, the upper end of one side of the front surface of the heat sealing machine body is fixedly connected with a mounting seat, one end of the mounting seat is fixedly connected with a detection photoelectric switch, and the other end of the mounting seat is fixedly connected with a control switch. A through groove is formed in the heat sealing machine body, a heat sealing station mold is fixedly connected to the inner bottom wall of the heat sealing machine body, a lower heat insulation plate is movably connected to the interior of the through groove, and an upper heat insulation plate is arranged above the heat sealing station mold. The upper heat insulation plate and the lower heat insulation plate are placed and inserted into the top end and the bottom end of a material respectively, damage caused by radiation of heat in the upper direction and the lower direction to the material can be avoided, whether the upper heat insulation plate and the lower heat insulation plate are installed in place or taken out or not can be judged through the detection optoelectronic switch, and good heat insulation treatment on the material by short-time shutdown is guaranteed; the practicability is improved.

The invention belongs to the technical field of aluminum stranded wires, and particularly relates to a steel core high-conductivity rare earth aluminum stranded wire and a preparation method thereof. The steel core high-conductivity rare earth aluminum stranded wire is composed of a steel core and a duralumin wire stranded on the outer layer of the steel core, and the duralumin wire is prepared from the following raw materials in percentage by weight: 0.11 to 0.18 wt% of Fe, 0.15 to 0.24 wt% of Si, 0.04 to 0.15 wt% of B, 0.22 to 0.35 wt% of Cu, 0.04 to 0.08 wt% of Sm, 0.05 to 0.12 wt% of gadolinium carbide, 0.18 to 0.25 wt% of modified MXene and the balance of Al. The modified MXene is prepared by the following preparation process: adding Ti3C2TX, copper chloride, ammonium chloride, ascorbic acid and thiourea into water, and performing ultrasonic dispersion under a heating condition to obtain the modified MXene. The duralumin wire is excellent in electric conductivity and excellent in mechanical property.

The invention relates to a foaming mechanism used in a space environment, and belongs to the technical field of space tiny fragment removal. According to the mechanism, an organic compound (azodicarbonamide) is thermally decomposed to generate a regular bubble group, and millimeter-level space debris is removed by a non-contact resistance increasing method; the core of the device comprises a thermal foaming module (comprising a latex balloon, a 180 DEG C heating sheet and an AC foaming agent), a motion control module (a duralumin frame integrated lead screw sliding block mechanism and a T-shaped groove limiting system) and a vacuum adaptive design (a glue rubbing plate is pre-coated with a glue solution, and an electromagnet is connected with a Dupont line). Compared with a traditional mechanical arm capturing technology (such as China 'Practice No. 21') or a net capturing technology (such as the England Remote DEBRIS project), expansion bubbles can be continuously released to wrap multiple fragments, group clearing is achieved, and energy consumption is far lower than that of a laser pushing technology; the stability in an extreme environment is guaranteed through a duralumin frame and glue sealing design, the stacked drawer container supports storage of multiple balloons, adapts to platforms such as satellites and space stations, is suitable for scenes such as low earth orbit debris cleaning and orbit purification before satellite constellation deployment, fills up the technical blank of tiny debris cleaning, has high efficiency, safety and engineering feasibility, and is suitable for popularization and application. And an innovative solution is provided for space sustainable development.

The utility model relates to the technical field of new energy battery connection, in particular to a duralumin bar for new energy battery module battery cell connection, which can enable a plurality of groups of duralumin bars to be adjacently connected according to actual battery cell connection requirements so as to adapt to multi-battery cell power supply and improve practicability. Comprising a duralumin bar body, a duralumin bar connecting auxiliary body, a limiting movable groove, first penetrating holes, second penetrating holes, an embedding groove, an inner nut, a fixing bolt, a limiting base and a blocking piece, the upper side of the right end of the duralumin bar body is connected with the lower side of the left end of the duralumin bar connecting auxiliary body, and the front side and the rear side of the left end of the duralumin bar body are each provided with a set of second penetrating holes; a caulking groove is formed in the lower side of the second penetrating hole of the duralumin bar body, the top end of the interior of the caulking groove is connected with the top end of the inner nut, the left middle side of the top end of the duralumin bar body is connected with the bottom end of the limiting base, and the fixing bolt penetrates through the first penetrating hole and the second penetrating hole to be detachably screwed to the inner side of the inner nut. A hot melting structure is arranged in the middle of the duralumin bar body.

The present invention discloses a method for hydraulic bulging of a reversed hyperbolic fairing skin, comprising the following steps: constructing a hydraulic bulging process surface for the fairing skin; determining the dimensions of the expanded blank; designing the hydraulic bulging die structure for the fairing skin in stages; performing hydraulic bulging; and trimming the outer shape. Based on the reversed hyperbolic structure of the fairing skin, the present invention designs hydraulic bulging process surfaces for different skins with opposite overall curvatures. This increases the plastic deformation area of ​​the material during hydraulic bulging, addressing issues uncontrolled by conventional drop-press forming of reversed hyperbolic skins, such as severe orange peel defects on the material surface, penetration of the aluminum cladding layer of the duralumin material, and surface quality that fails to meet customer requirements.