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Direct Heat Treatment Technique for High-Strength, Large-Diameter PC Steel Bars with Pearlite Microstructure

机译:具有珠光体组织的高强度大直径PC钢筋的直接热处理技术

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摘要

In PC steel bar production, Sumitomo Electric uses a direct heat treatment technique utilizing sensible heat from hot-rolled steel. To produce high-strength PC steel bars with pearlite microstructure, mist cooling is conducted using a mixture of water and air as a coolant after hot rolling. This technique enables us to control the temperature where pearlite transformation starts and the resulting heat generation. This paper introduces the direct heat treatment technique that can provide higher tensile strength to large-diameter PC steel bars while being economical and environmentally friendly. It also outlines the mist cooling equipment and the properties of PC steel bars made by using this technique.
机译:在PC钢筋生产中,住友电工采用直接热处理技术,利用热轧钢的显热。为了生产具有珠光体组织的高强度PC钢筋,在热轧后使用水和空气的混合物作为冷却剂进行薄雾冷却。该技术使我们能够控制珠光体转变开始的温度和产生的热量。本文介绍了直接热处理技术,该技术可在经济和环保的同时为大直径PC钢筋提供更高的拉伸强度。它还概述了雾气冷却设备以及使用该技术制成的PC钢筋的性能。

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