51results about How to "Improve wire performance" patented technology

Described herein are methods, systems, and apparatus for shape-setting hyperelastic, single-crystal shape memory alloy (SMA) material while preserving the hyperelastic properties of the material. Also described are hyperelastic, single-crystal SMA devices that have been shape set by these methods. In particular, described herein are hyperelastic, single crystal SMA dental archwires and methods of forming them while preserving the hyperelastic properties, e.g., without significant grain boundaries in the crystal structure.

The invention discloses a preparation method for a high-conductivity heat-resistant aluminium alloy conductor, and relates to a preparation method for an alloy conductor. The method comprises the following processes: step 1, heating and melting commercially pure aluminium (containing Wt, not greater than 0.13% of Fe and not greater than 0.08% of Si) with a purity of greater than 99.7% in a heating furnace, and then adding Al-Zr intermediate alloy and Al-Er intermediate alloy in the melted pure aluminium melt; step 2, carrying out degassing, impurity removal, slagging-off, covering and other evolution treatments on the melt; step 3, discharging the melt subjected to heat insulation and standing from a heat-insulation furnace by virtue of a flow groove, and enabling the aluminium melt to sequentially flow through an online degassing system and a ceramic filtering system which are connected to the rear through the flow groove; step 4, carrying out 4-6 passes of continuous ECAE forming on an aluminium wire ingot obtained through continuous casting forming; and step 5, taking the aluminium alloy rod formed through the 4-6 passes of ECAE forming and with a diameter of 8.5-12mm as a raw material, and automatically rolling the aluminium alloy rod into a coil on a wire drawing machine. The method is a method for preparation of a high-strength high-conductivity heat-resistant aluminium alloy conductive wire, and continuous ECAE dynamic age forming, for obtaining a high-performance aluminium alloy conductive wire.

The invention discloses a preparation technology for high-strength high-conductivity copper alloy guide lines, and relates to the technical field of guide line production and processing. The preparation method is characterized by comprising the following steps of (1) fully mixing 16-18 parts by weight of nanometer refined copper powder of which the grain diameter is 0.4-0.8 mum and 2-4 parts by weight of nanometer refined copper powder of which the grain diameter is 0.2-0.3 mum with 84-86 parts by weight of nanometer refined tungsten powder of which the grain diameter is 0.2-0.6 mum, and putting the mixture in a ball grinding mill to carry out ball milling; (2) protecting, distinguishing and drying by filling a vacuum glove box with argon after the ball milling is completed; (3) carrying out extrusion forming, wherein dried powder raw materials can be extruded into guide lines under the action of a press machine, and the pressure of the press machine is set to be 500-600MPa; (4) sintering, wherein sintering forming is carried out on the guide lines which are formed by extrusion forming, and the sintering temperature is controlled to be 900-1000 DEG C. The preparation technology is convenient for large-scale production, is low in price and has very high strength, high conductivity and high temperature-resisting capacity.

The invention discloses a hot-pressed buffer sheet and a preparation method thereof. The hot-pressed buffer sheet and the preparation method thereof comprise a Teflon glass fiber cloth, an adhesive and a heat-conducting silica gel layer, and the surface of the Teflon glass fiber cloth is coated with an adhesive , the adhesive forms an adhesive layer, and the adhesive is made of the following materials in mass fraction: 30-40% of organosilicon-modified silicon resin, 30-40% of silane coupling agent, 10-20% of organic solvent and liquid resistant 10-20% warming agent, and a heat-conducting silica gel layer is arranged on the adhesive layer, and the heat-conducting silica gel layer is composed of heat-conducting silica gel with a mass fraction of 100%, 0.2-3% A / B platinum vulcanizing agent or 1-5% bis Four or 1-5% double 25, 5-30% conductive adhesive or 5-30% conductive powder, 2-5% carbon nanotubes, nano-titanium oxide and silica gel wetting agent. Through the above method, the present invention has good heat resistance, conductivity and release property, is not easy to delaminate, and has a long service life.

The invention provides a conductor contact connector. A controllable stopper (100) is provided with a first conductor connecting-inserting hole (101) and a second conductor connecting-inserting hole (102), wherein the first conductor connecting-inserting hole (101) and the second conductor connecting-inserting hole (102) are communicated with the exterior and the inner cavity of the controllable stopper (100) respectively; and the controllable stopper (100) can perform locking or releasing on a first conductor (103) inserted in the first conductor connecting-inserting hole (101) and / or a second conductor (104) inserted in the second conductor connecting-inserting hole (102). By virtue of the conductor contact connector, the connection between the wires can be quickly realized, and the connection state can be flexibly switched into a separation state. In the connection state of the wires, the electric passage where the wire is located is stable and reliable in contact, so that the effect of the wire is enhanced.

A stainless steel motor with high weather resistance and high sealing performance comprises a cylindrical housing (11) made of a stainless steel material. A front end cover (12) is arranged at one end of the cylindrical housing, and a rear end cover (13) is arranged at the other end of the cylindrical housing. A rotary shaft hole (12a) is provided in the front end cover. A rotary shaft sealing sleeve (12b) is arranged in the rotary shaft hole, and a rotor shaft (12) is sleeved in the rotary shaft sealing sleeve (12b). A first drainage structure is arranged on the front end cover, and a second drainage structure is arranged on the rear end cover. A first wire penetrating hole (11a) and a second wire penetrating hole (11b) are provided in the cylindrical housing. A junction box (3) located on the outside of the first wire penetrating hole and a capacitor box (4) provided with a capacitor (4a) and located on the outside of the second wire penetrating hole are arranged on the outer wall of the cylindrical housing. A first sealing structure is arranged between the cylindrical housing and the junction box, and a second sealing structure is arranged between the cylindrical housing and the capacitor box. The motor has the advantages of easy draining and good sealing effect.

The invention discloses a yarn twisting device and an efficient twisting machine. The yarn twisting device comprises a base frame; the top side of the base frame is of a circular structure; a first gear is arranged at the center position of the base frame; a plurality of rotating shaft holes are evenly formed in the edge position of the top side of the base frame; center rotating shafts are rotationally installed in the multiple rotating shaft holes correspondingly; the multiple center rotating shafts are sleeved with second gears and rotating cylinders correspondingly; and a first yarn guiding ring is arranged on the top side of the base frame. The invention further discloses the efficient twisting machine. The yarn twisting device is reasonable in structure and easy to operate; through the arrangement of a gear mechanism, the multiple rotating cylinders synchronously rotate along the multiple center rotating shafts at the same speed, different strands of yarn are fixedly installed in the multiple rotating cylinders correspondingly to be rotated and twisted, and the yarn is converged into one strand of yarn through the first yarn guiding ring, so that the effects that multiple strands of the yarn can be twisted at the same time, the twist degree is completely consistent are achieved, and the occupied space of equipment is effectively reduced.

The invention discloses an azafluorene-based small molecule butterfly-shaped organic nanocrystal material and its preparation method and application. The azafluorene-based small-molecule butterfly-shaped organic nanocrystal material has an asymmetric double-sided butterfly-shaped multi-dimensional micron structure , one side is plum-shaped and the other is butterfly-shaped. The invention realizes the controllable preparation of pure organic small molecule nanometer material in the field of multi-dimensional structure. Through the corresponding dynamic growth process and single crystal analysis and other characterization methods, the growth mechanism of this organic nanomaterial and the deep relationship between the morphology and molecular structure were confirmed. In addition, the excellent wire performance of the structure was verified based on the conductive atomic force microscopy platform. The application potential of such organic semiconductor materials in future optoelectronic devices is demonstrated.