Electric plastic pulling enhancing process for high-carbon steel wire

An electroplastic drawing, high-carbon steel wire technology, applied in the field of wire drawing, can solve the problems of large drawing force, micro cracks, scratches, etc., to improve service life and fatigue life, reduce residual internal stress, Effect of Tensile Strength Improvement

Inactive Publication Date: 2005-05-11
TSINGHUA UNIV
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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 surfac

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Example Embodiment

[0016] The present invention proposes an electroplastic drawing strengthening process of high carbon steel wire by using electroplastic wire drawing technology to improve the performance of high carbon steel wire. The process steps of the electroplastic drawing of high carbon steel wire are as follows:

[0017] 1) Electroplastic drawing device: a DC pulse current generator using the principle of capacitor charging and discharging, connects the output end of the pulse power supply to the steel wire in the deformation zone of the steel wire, that is, the two ends of the mold and the steel wire. It adopts artificial floating design and contact connection. Ensure the absolute safety of operators.

[0018] 2) According to the requirements of steel wire products, select process parameters such as output voltage, amplitude current, pulse frequency, pulse width, and deformation parameters such as deformation amount and deformation speed, so as to improve the tensile strength and surface q...

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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...

Claims

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Application Information

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IPC IPC(8): B21C1/00
Inventor 姚可夫郑明新
Owner TSINGHUA UNIV
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