31results about How to "Fully annealed" patented technology

The invention discloses an annealing device for wire and cable manufacturing. The device comprises an equipment main body, a control panel is fixedly connected to the middle position of the bottom of the front surface of the equipment main body, an annealing device is arranged in the middle position of the left side of the top of the equipment main body, protection supports are fixedly connected to the positions, located on the two sides of the annealing device, of the top of the equipment body, a fixing frame is fixedly connected to the right sides of the tops of the protection supports, and a feeding guide sleeve is fixedly connected to the side, close to the annealing device, of the fixing frame. The invention relates to the technical field of wires and cables. According to the annealing device for wire and cable manufacturing, the stability of a cable during moving is effectively improved, the feeding tensioning force of the cable is adjusted, and meanwhile, the entering position is automatically adjusted, so that the situation that the cable position is excessively deviated in the device, a heating mechanism and a feeding adjusting body are concentrated to have a small amount of height deviation is avoided, and it can be guaranteed that the interior is in a tight state, and sufficient annealing is facilitated.

The invention discloses a method for preparing a superconducting wire / strip. The method for preparing the superconducting wire / strip comprises the following steps that 1, a metal package sheathing / ceramic core wire composite wire is wound on a pay-off reel after the metal package sheathing / ceramic core wire composite wire is cleaned, the metal package sheathing / ceramic core wire composite wire penetrates through a first guide pulley, an induction coil device, a second guide pulley and a drawing die in sequence, and the metal package sheathing / ceramic core wire composite wire is clamped on a wire drawing machine drawing device to complete assembling; 2, the wire drawing machine drawing device is started to drive the metal package sheathing / ceramic core wire composite wire to draw; 3, the drawn metal package sheathing / ceramic core wire composite wire is collected, then the assembling and drawing process are repeated, and then the superconducting wire / strip is obtained through heat treatment; and induction annealing and synchronous drawing are carried out on the metal package sheathing / ceramic core wire composite wire during repeated drawing. According to the method for preparing thesuperconducting wire / strip, induction annealing is introduced into the drawing, so that the metal package sheathing of the metal package sheathing / ceramic core wire composite wire rapidly heats up, induction annealing and synchronous drawing are realized, the mechanical properties of the superconducting wire / strip are guaranteed, the core breaking phenomenon is avoided, and the processing uniformity of the superconducting wire / strip is improved.

The invention provides a method for nitridation and crystallization of metastable-state samarium-iron alloy. The method comprises the steps of performing rapid cooling and sudden condensation on molten-state samarium-iron alloy to obtain the metastable-state samarium-iron alloy; performing nitridation and initial crystallization on the metastable-state samarium-iron alloy to obtain nitrided samarium-iron alloy; and performing annealing and crystallization on the nitrided samarium-iron alloy to obtain a samarium-iron nitrogen permanent-magnet material. During nitridation of a metastable-state material, a large amount of rheological units existing in the metastable-state alloy are beneficial for diffusion and homogenization of nitrogen atoms, the nitridation content of the alloy can be remarkably increased, and the nitrogen atoms are uniformly distributed; crystallization is completed before decomposition of Sm<2>Fe<17>N<x>, nitride formation is reduced or prevented, and the metastable-state samarium-iron alloy has a refined microstructure; and moreover, according to the method provided by the invention, the nitridation speed is fast, and the nitridation efficiency of improving a samarium-iron nitrogen magnetic material by the samarium-iron alloy is improved.

The invention provides a manufacturing method of an aluminum alloy conduit having a good bending property. The manufacturing method comprises the steps of sequentially performing heating, extrusion, withdrawal straightening, corrosive washing, rolling, diameter-reducing annealing, drawing, washing, detection and finished product annealing on a hollow ingot to obtain the aluminum alloy conduit, wherein the finished product annealing method comprises the following steps: (1) fixing the temperature of an empty furnace to be 480 to 500 DEG C, maintaining the temperature after the furnace reaches apreset temperature, and baking; (2) after the baking is ended, quickly performing hot-furnace charging to finish charging of the furnace; (3) after charging of the furnace is ended, setting the furnace temperature to be 430 to 450 DEG C, maintaining the temperature and performing annealing treatment; and (4) quickly discharging a product from the furnace after the annealing treatment is ended, and performing air cooling, wherein the time starting from the end point of charging to discharging is shorter than or equal to 65 min. By adopting high-temperature and short-time quick heating, coolingand annealing processes, the manufacturing method provided by the invention can effectively refine grains; the annealing process can be used for obtaining a conduit with a relatively small surface grain size; and the phenomenon of 'Orange Peel', generated in a subsequent bending process, of the aluminum alloy can be prevented.

The invention discloses a machining technology of a titanium alloy pipe. The technology comprises the following steps of alloy smelting, pouring, perforating, extruding, rolling and surface treatment.According to the machining technology, titanium serves as a main raw material, the material is poured into an ingot, then perforating and extruding are carried out, and the smoothness degree of the inner surface of the obtained pipe is good.