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本刊去年第六期发表的《谈谈冷拔低碳钢丝的逐盘检验》一文(以下简称《逐检》),认为“采用逐盘检验远比分批检验为好”。本文就此谈些不同看法,以期讨论。一、拔丝截面总收缩率是影响冷拔丝强度的主要因素之一《逐检》文中也谈到影响冷拔丝强度的主要因素是原材强度和截面总收缩率。笔者在统计分析大于φ5冷拔低碳钢丝(以下简称冷拔丝)强度的基础上(因我厂不使用小直径冷拔丝作预应力筋,而这在现行
In the sixth issue of the magazine “Talk about Cold-Pumped Low-Carbon Wire-by-Rod Inspections” published in the sixth issue of the magazine last year (hereinafter referred to as “Checked-by Inspection”), it was considered that “using batch-by-platter inspections for far-separated batch inspections is preferable”. This article discusses some different views on this point in order to discuss. First, the total shrinkage of the cross-section of the drawing is one of the main factors affecting the cold drawing strength. According to the review, the main factors influencing the cold drawing strength are the strength of the raw material and the total cross-sectional shrinkage. The author analyzes and analyzes the strength of φ5 cold-drawn low-carbon steel wire (hereinafter referred to as cold drawn wire) statistically (because our factory does not use small-diameter cold drawn wire as prestressing tendons, and this is currently