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The mild steel wire rod and its production manner null which possess the annealing property which
The mild steel wire rod and its production manner null which possess the annealing property which
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机译:具有退火性能的低碳钢线材及其生产方式无效
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摘要
PROBLEM TO BE SOLVED: To prevent a rise in annealing temp., which becomes a problem when a material of mild steel wire is used, and to obtain a wire rod having stable annealing characteristics and excellent in wire drawability by specifying respective contents of C and Ti in a steel and precipitating specific percentages of Ti precipitates in a wire rod in the form of Ti4C2S2. ;SOLUTION: A steel, having a composition containing, by weight, ≤0.01% C and Ti in the amount satisfying 2≤Ti/C≤30, is cast continuously into bloom. It is preferable to form Ti into perfect solid-solution state at this time. This cast bloom is heated at 1000-1500°C to precipitate Ti, in the state of solid- solution, in the form of Ti4C2S2 and hot-rolled into billet. Preferred temp. at hot rolling is ≥1000°C. Then, this billet is heated in a wire rod working furnace and formed into wire rod by means of a wire-rod mill. By this method, the desired wire rod, in which ≥60% of Ti precipitates contained in the wire rod are precipitated in the form of Ti4C2S2 and tensile strength is regulated to ≤300MPa, can be obtained.;COPYRIGHT: (C)1998,JPO
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机译:解决的问题:为了防止退火温度的升高,当使用低碳钢的材料时这成为问题,并且通过指定C和C的各自含量来获得具有稳定的退火特性和优异的拉丝性的线材。钢中的Ti和以线材形式析出特定百分比的Ti沉淀物,其形式为Ti 4 Sub> C 2 Sub> S 2 Sub>。 ;解决方案:将具有按重量计包含0.01%的C和Ti的含量满足2Le / C / 30的组成的钢连续浇铸成大方坯。此时,优选将Ti形成为完全的固溶状态。将该铸坯在1000-1500℃下加热,以固溶状态沉淀出Ti 4 Sub> C 2 Sub> S 2形式的Ti。 Sub>并热轧成方坯。首选温度热轧时的温度为1000℃。然后,将该坯料在线材加工炉中加热,并通过线材轧机形成线材。通过这种方法,所需的线材,其中线材中所含的60%以上的Ti析出物以Ti 4 Sub> C 2 Sub> S 2 Sub>,抗拉强度可调节到≤ 300MPa。;版权:(C)1998,JPO
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