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首页> 外文期刊>Materials & design >Pass schedule of wire drawing process to prevent delamination for high strength steel cord wire
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Pass schedule of wire drawing process to prevent delamination for high strength steel cord wire

机译：拉丝工艺的通过时间表，以防止高强度钢丝帘线分层

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摘要

The high-speed drawing of high carbon content steel wires is usually conducted at room temperature employing a number of passes or reductions through several dies. In the multipass drawing process, the temperature rise at each pass affects the mechanical properties of the final product (such as its bending and torsion properties, and its tensile strength). This temperature rise during deformation encourages delamination in the wire, which has a deleterious influence on the torsional properties and durability of the wire. In this study, we investigated the delamination of wires using torsion tests and evaluated the wire temperature during drawing. Our data shows that one of the main reasons for delamination was an excessive rise in wire temperature. Based on our experimental results, in order to prevent delamination due to an excessive rise in wire temperature, a new isothermal pass schedule that could control the wire temperature was designed. The pass redesign for the conventional high carbon (0.75 wt%C) steel cord wire drawing process with delamination was carried out by using the isothermal pass schedule to control the wire temperature. In order to verify the effectiveness of the proposed method, wire drawing and torsion test were conducted. From the results of experiments, it was possible to produce high carbon steel cord wire without delamination.
机译：高碳含量钢丝的高速拉伸通常是在​​室温下进行的，采用多次通过或压下多个模具的方法。在多道次拉伸过程中，每次道次的温度升高都会影响最终产品的机械性能（例如其弯曲和扭转性能以及拉伸强度）。变形过程中的温度升高会导致金属丝分层，这会对金属丝的扭转性能和耐用性产生有害影响。在这项研究中，我们使用扭转试验研究了电线的分层，并评估了拉拔过程中的电线温度。我们的数据表明，分层的主要原因之一是导线温度过度升高。根据我们的实验结果，为了防止由于线材温度过度升高而分层，设计了一种可以控制线材温度的新的等温通过程序。通过使用等温通过计划来控制线材温度，对具有分层的常规高碳（0.75 wt％C）钢丝绳拉丝工艺进行道次重新设计。为了验证该方法的有效性，进行了拉丝和扭转试验。根据实验结果，可以生产不分层的高碳钢丝帘线。

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