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新聞資訊
鋼筋的冷拉和冷拔的作用是什么？有什么區別呢
發布時間：2018-03-20 09:28??禁止復制或轉載本站任何內容，特此聲明！??點擊：
冷拉是在常溫下對鋼筋進行強力拉伸，拉應力超過屈服強度，產生塑性變形，達到調直鋼筋，提高強度。冷拔是使圓6～8mm的光圓鋼筋通過鎢合金的拔絲模進行強力冷拔。鋼筋產生塑性變形，抗拉強度提高，塑性個韌性降低，呈硬剛性質。
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<rt id="ikguu"></rt>
<rt id="ikguu"><pre id="ikguu"></pre></rt>
<abbr id="ikguu"></abbr>
<rt id="ikguu"></rt>
