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Ultra-low carbon steel, and preparation method and application thereof

A technology of ultra-low carbon steel and chemical composition, which is applied in the field of ultra-low carbon steel wire production for copper-clad steel, and can solve the problems of poor comprehensive performance, high strength of steel wire, and low conductivity

Active Publication Date: 2020-08-25
武汉钢铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The invention provides an ultra-low carbon steel wire and its preparation method and application to solve the technical problems of high strength, poor plasticity, low electrical conductivity and poor comprehensive performance of the steel wire for copper-clad steel prepared in the prior art

Method used

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  • Ultra-low carbon steel, and preparation method and application thereof
  • Ultra-low carbon steel, and preparation method and application thereof
  • Ultra-low carbon steel, and preparation method and application thereof

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Embodiment 1 to Embodiment 8

[0064] Embodiment 1 to embodiment 8 provide a kind of preparation method of low carbon steel wire, specifically as follows:

[0065] (1) Dry drawing: The hot-rolled wire rod with the chemical composition shown in Table 1 (the rest is Fe and unavoidable impurities) is mechanically descaled by a roller sheller, then phosphating and drying, and lubricated into Continuous wire drawing machine, after 5 times of continuous drawing and deformation into 2.5-3.0mm steel wire, the wire is collected and rolled. The total drawing deformation reduction rate is 80-90%, and the drawing reduction rate per pass is 26- 36%.

[0066] (2) Wet drawing: After dry drawing, the steel wire is phosphated and lubricated, and then drawn into the water tank for drawing, and drawn into 1.2-1.6mm filaments after 5 passes, and the total drawing deformation reduction rate is 70-80 %. The area reduction rate of each drawing is 20-30%.

[0067] (3) Recrystallization annealing: The coils drawn into filaments ...

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Abstract

The invention discloses ultra-low carbon steel, and a preparation method and application thereof. The ultra-low carbon steel is prepared from the chemical components in percentage by mass: 0.001% to 0.002% of C, 0.03% to 0.05% of Mn, less than or equal to 0.005% of Si, less than or equal to 0.003% of Al, less than or equal to 0.010% of P, less than or equal to 0.005% of S, 0.01% to 0.05% of Zr, and the balance of Fe and unavoidable impurities. The ultra-low carbon steel has good tensile strength and elongation, the tensile strength is 260 to 280 MPa, and the elongation is 45% to 55%. The ultra-low carbon steel also has good conductance and the conductance is up to 16.5% to 17.5%.

Description

technical field [0001] The invention belongs to the technical field of production of ultra-low-carbon steel wire rods for copper-clad steel, and in particular relates to an ultra-low-carbon steel and a preparation method and application thereof. Background technique [0002] Ultra-low carbon steel refers to steel with a carbon content of ≤0.002%, and the ultra-low carbon steel wire rod is the one with the smallest section size of section steel. Wire rod is also called wire rod because it is delivered in wire rod. Wire rods can be used as raw materials for wire drawing. After being drawn into various steel wires, they are twisted into steel wire ropes, or woven into steel wire nets, or coated with a layer of copper to form composite wire copper-clad steel. Among them, the copper-clad steel wire combines the tensile strength and toughness of steel (twice that of pure copper wire), the electrical conductivity and high-frequency characteristics of copper, light weight (12% ligh...

Claims

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Application Information

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IPC IPC(8): C22C38/14C22C38/06C22C38/04C22C38/02C21D1/26C21D8/06B21C1/02
CPCB21C1/02C21D1/26C21D8/065C21D2211/005C22C38/002C22C38/02C22C38/04C22C38/06C22C38/14
Inventor 张贤忠仇东丽任安超夏艳花鲁修宇丁礼权张帆
Owner 武汉钢铁有限公司
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