Electric plastic pulling enhancing process for high-carbon steel wire

Abstract

An electroplastic drawing and strengthening technology for manufacturing the high-carbon steel wire features that a DC pulse current generated is connected the deformed region of steel wire and the steel wire is drawn multiple passes while the parameters of pulse power supply and the deformation of steel wire are chosen. The finished steel wire has high surface quality and tension strength and long service life and fatigue life.

Description

technical field [0001] The invention belongs to the technical scope of metal wire drawing, in particular to an electroplastic drawing strengthening process of high-carbon steel wire. Background technique [0002] High-carbon high-strength steel wire is widely used as steel cord, steel wire rope and other products. Such materials are often used to bear large loads and have harsh working conditions. Therefore, under the condition that the toughness does not decrease, the steel wire is often required to have high tensile strength and excellent quality. The higher strength of steel wire can improve the performance of steel wire products on the one hand, and on the other hand can reduce the amount of steel wire and the weight of steel wire products under the premise of ensuring the performance requirements. Therefore, it is of great significance to improve the tensile strength of steel wire. In addition, such steel wire products bear heavy loads, and their surface defects are l...

AI Technical Summary

Problems solved by technology

[0004] Production practice shows that the disadvantages of the above steel wire cold drawing process are: ①Due to the high strength of the wire material, the drawing force is relatively large, and the drawing processing performance is not good; ②It is easy to cause uneven structure and wire diameter of the drawn wire material , reduce the mechanical quality of the steel wire; ③The surface condition of the repeatedly drawn wire is not good, not smooth, with scratches and micro-cracks, which greatly reduces the performance and service life of the drawn wire

According to the literature search, there is no report on the use of electroplastic wire drawing process to improve the tensile strength of high-carbon high-strength steel wire and related information at home and abroad.