72a

Study on Inclusion of Tire Cord Steel 72A During Refining Period

帘线钢72A精炼过程研究

Application of 72A High Speed Wire Rod to Production of Steel Wire for Hose

72A高线盘条在胶管钢丝生产中的应用

Research on Heated Process of 72A Billets for Steel Cord

72A帘线钢小方坯的加热工艺研究

Study on Breaking of Steel Wire 72A

72A钢钢丝断裂研究

Crack Nucleation and Propagation Mechanisms in Cold-drawing of 72A Hard Wire

72A硬线钢丝拉拔裂纹的形成与扩展机制

Analysis on Pencil-Tip Shaped Fracture of Cord Steel 72A during Cold Drawing and Improvement of Process

72A帘线钢线材冷拔笔尖状断裂分析和改进工艺措施

To analyze the problems existing of 72A high speed wire rod through comparing the property of steel wire for hose in each production process .

通过对比各生产工序中胶管钢丝的性能，分析72A高线盘条存在的问题，提出生产72A盘条的建议。炼钢时控制化学成分均匀稳定；

The structure of transverse ruptured 72A hard steel wire has been observed by microscope and its hardness has been measured .

用金相显微镜和显微硬度计分别观察和测量了拉拔过程中发生横向断裂的72A硬线钢组织与硬度。在钢丝断口处存在尺寸较大的卷渣缺陷；

We have analyzed the trend of their changes , and provided some suggestions and resolvent for improvements of the quality of 72A .

分析了钢中夹杂物、酸溶铝和总氧的变化趋势，为进一步提高72A质量提供了一些建议和解决方案。

Research about the cleanliness of 72A

首钢72A钢洁净度研究

Non-Metallic Inclusions in 72A Steel

72A钢非金属夹杂物行为

To test and analyze 72A wire rod made in three factories of China and in Japan . It has close relation between broken pulling force of wire rope and tensile force value dispersed degree of steel wire for rope .

对国内3家工厂和日本产72A盘条进行试验并分析，钢丝绳的整绳破断拉力值和制绳钢丝拉力值的离散度有密切关系。