论文部分内容阅读
对30吨冷拔机所拔20个钢种400根钢管的实测数据进行了全面的研究与分析,並以此为基础,建立了新的k值表。由于低碳钢20号、中碳铜45号的试验较全面,数据较充分,所测的k值(20号钢有顶头为80～90、无顶头为70～80;45号钢有顶头为120～130无顶头为90～100)有代表意义。对拔制力系数做了专门探讨,对冷拔机械设备和电力拖动设备的运转情况和产生故障的原因做了认真分析,对力、电参数关系做了定量研究,其结果[P=(Ⅰ-70)×0.0624吨]为安全生产提供了数据。通过测定,对冷拔机的进一步革新、挖潜、改造、配套,提高产品数量与质量都有十分重要意义。介绍了冷拔机力、电参数测定方法,着重论述了首次在冷拔机上直接标定的方法。介绍了近年来国内外关于拔制力的各种计算公式,並与实测结果做了比较。
A comprehensive study and analysis was conducted on the measured data of 400 steel tubes of 20 steels drawn by a 30-ton cold-drawing machine. Based on this, a new k-value table was established. As the low carbon steel No. 20 and the medium carbon copper No. 45 were tested more comprehensively, the data were more comprehensive and the measured k value (the 20th steel had a head of 80 to 90 and no head of 70 to 80; the 45th steel had a head of 120 to 130 no head is 90 to 100) is representative. A special discussion was made on the pull-out force coefficient, and the operation of the cold-drawing mechanical equipment and the electric drive equipment and the causes of the malfunction were carefully analyzed, and the relationship between force and electric parameters was quantitatively studied. The result was [P=( I-70) × 0.0624 tons] provide data for safe production. Through the measurement, it is of great significance to further innovate, tap potential, transform, and support the cold-drawing machine and improve the quantity and quality of the product. The method of measuring the force of the cold drawn machine and the electrical parameters was introduced. The method of direct calibration on the cold drawn machine for the first time was emphatically discussed. Introduced various calculation formulas for drawing force at home and abroad in recent years, and compared with actual measurement results.