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High-strength iron-nickel-molybdenum alloy wire and low-cost preparation method thereof

A technology of iron-nickel-molybdenum and alloy wire, which is applied in the field of metallurgy, can solve the problems of reducing the plasticity, toughness and torsion performance of the final wire, reducing production continuity, and prolonging the production cycle, so as to shorten the production cycle and reduce the number of drawing passes , reduce the effect of drawing passes

Active Publication Date: 2022-03-01
HEBEI IRON AND STEEL +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The high-strength iron-nickel-molybdenum wire material prepared by the above process will reduce the plasticity, toughness and torsional performance of the final wire due to the effect of work hardening; the saponified layer formed after drawing will also increase the difficulty of subsequent processing; at the same time, cold drawing-intermediate Heat treatment-secondary cold drawing will also reduce the continuity of production, prolong the production cycle and increase production costs

Method used

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  • High-strength iron-nickel-molybdenum alloy wire and low-cost preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The chemical composition and mass percentage of the high-strength iron-nickel-molybdenum alloy wire in this example are shown in Table 1. Its production method includes vacuum smelting, electroslag remelting, forging, high temperature solution treatment, low temperature rolling, aging heat treatment, peeling and cold drawing process. Concrete process steps are as follows:

[0021] The electroslag ingot obtained by vacuum smelting and electroslag remelting is forged into a 140mm×140mm billet, and after a high-temperature solution treatment at 1250°C for 3 hours in a nitrogen-protected environment, it is cooled to 920°C in a heating furnace, and then moved to the furnace Cooling with external water to room temperature; rolling the billet into a φ5.5mm wire rod after high-temperature solution treatment, the starting rolling temperature is 900°C, the final rolling temperature is 670°C, water cooling to room temperature immediately after rolling; the wire rod is aged at 620°...

Embodiment 2

[0023] The chemical composition and mass percentage of the high-strength iron-nickel-molybdenum alloy wire in this example are shown in Table 1. Its production method includes vacuum smelting, electroslag remelting, forging, high temperature solution treatment, low temperature rolling, aging heat treatment, peeling and cold drawing process. Concrete process steps are as follows:

[0024] The electroslag ingot obtained by vacuum smelting and electroslag remelting is forged into a 135mm×135mm billet, and after a high-temperature solution treatment at 1210°C for 3.5 hours in a nitrogen-protected environment, it is cooled to 900°C in a heating furnace, and then moved to Water cooling outside the furnace to room temperature; rolling billet into φ5.0mm wire rod after high-temperature solution treatment, starting rolling temperature is 890°C, finishing rolling temperature is 700°C, water cooling to room temperature immediately after rolling; wire rod aging heat treatment at 550°C Af...

Embodiment 3

[0026] The chemical composition and mass percentage of the high-strength iron-nickel-molybdenum alloy wire in this example are shown in Table 1. Its production method includes vacuum smelting, electroslag remelting, forging, high temperature solution treatment, low temperature rolling, aging heat treatment, peeling and cold drawing process. Concrete process steps are as follows:

[0027] The electroslag ingot obtained by vacuum smelting and electroslag remelting is forged into a 145mm×145mm billet, and after a high-temperature solution treatment at 1230°C for 4 hours in a nitrogen-protected environment, it is cooled to 870°C in a heating furnace, and then moved to the furnace The external water is cooled to room temperature; the high-temperature solution-treated billet is rolled into a φ4.5mm wire rod, the rolling temperature is 920°C, the final rolling temperature is 700°C, and water is cooled to room temperature immediately after rolling; the wire rod is aged at 580°C for 2....

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Abstract

The invention discloses a high-strength iron-nickel-molybdenum alloy wire and a low-cost preparation method thereof, and belongs to the technical field of metallurgy, and the wire comprises the following chemical components in percentage by mass: 0.23-0.28% of C, 35.5-37.2% of Ni, 0.30-1.00% of Mo, 0.60-0.90% of V, 0.005-0.015% of N and the balance of Fe and inevitable impurities. The preparation method comprises the working procedures of vacuum melting, electroslag remelting, forging, high-temperature solution treatment, low-temperature rolling, aging heat treatment, peeling and cold drawing. And in the high-temperature solution treatment process, the temperature of solution treatment is 1200-1250 DEG C, and the time is 3-5 hours. The prepared iron-nickel-molybdenum alloy wire has the properties of high strength, low expansion coefficient, high torsion and the like, and is short in production period and low in production cost.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a high-strength iron-nickel-molybdenum alloy wire and a low-cost preparation method thereof. Background technique [0002] High-strength iron-nickel-molybdenum alloys have the advantages of high mechanical strength, good plasticity, and low linear expansion coefficient. In recent years, they have shown great application potential in the fields of power transmission, energy transportation, and aviation industry. Especially in the field of power transmission, high-strength iron-nickel-molybdenum materials are irreplaceable key core materials for the preparation of double-capacity wires. At present, the conventional strengthening methods of iron-nickel-molybdenum, such as solid solution strengthening and work hardening, are difficult to meet the performance requirements of high strength and high elongation of iron-nickel-molybdenum wire. [0003] The prior art (such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/08C22C38/12C21D1/74C21D6/00C21D8/06C22C33/04
CPCC22C38/08C22C38/12C22C38/001C22C33/04C21D6/001C21D8/065C21D1/74
Inventor 孙中华吴迎飞王育飞杨长龙孙明成
Owner HEBEI IRON AND STEEL
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