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Performance Control Method of Nickel-based Alloy Wire Rod

A technology of nickel-based alloy and control method, which is applied in the field of iron and steel metallurgy, can solve the problems of surface microcracks, poor stability, poor mechanical properties, etc., and achieve the effect of improving mechanical properties and avoiding mixed crystals

Active Publication Date: 2022-01-28
太原钢铁(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In contrast, although a small amount of small coil heavy products can be supplied in China, there are many surface defects, poor stability, unstable composition, and poor mechanical properties. Defects such as broken wires and surface microcracks often occur when drawing wire materials in the later stage. for non-critical parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Use VIM+ESR process to smelt nickel-based alloy raw materials into ingots. During the smelting process, the content of elements in nickel-based alloy raw materials is controlled as follows: C=0.006%, Si=0.02%, Mn=0.05%, P=0.005%, S=0.0007%, Cr=22.12%, Mo=8.81%, Nb+Ta=3.56%, Co=0.02%, Al=0.13%, Ti=0.17%, Cu=0.02%, Fe=0.01%, and the balance Ni.

[0021] In wire rolling, the spinning speed is 35m / s, and the spinning temperature is 1050°C. According to the reference value = [(the spinning temperature 2 ) / (Spinning speed 0.5 )] 0.5 Calculate the value of the reference value as [(1050 2 ) / (35 0.5 )] 0.5 =431, in the solution heat treatment step, the solution temperature is 1080°C, the holding time is 35min, and the furnace is water-cooled.

[0022] Utilizing the performance control method of the nickel-based alloy wire rod in Example 1, the measured elongation of the final finished nickel-based alloy wire rod is 67%, and the measured area shrinkage rate is 69%.

Embodiment 2

[0024] Use VIM+ESR process to smelt nickel-based alloy raw materials into ingots. During the smelting process, the content of elements in nickel-based alloy raw materials is controlled as follows: C=0.006%, Si=0.02%, Mn=0.05%, P=0.005%, S=0.0007%, Cr=22.12%, Mo=8.81%, Nb+Ta=3.56%, Co=0.02%, Al=0.13%, Ti=0.17%, Cu=0.02%, Fe=0.01%, and the balance Ni.

[0025] In wire rolling, the spinning speed is 36m / s, and the spinning temperature is 990°C. According to the reference value = [(the spinning temperature 2 ) / (Spinning speed 0.5 )] 0.5 Calculate the value of the reference value as [(990 2 ) / (36 0.5 )] 0.5 =404, in the solution heat treatment step, the solution temperature is 1160°C, the holding time is 35min, and the furnace is water-cooled.

[0026] Utilizing the performance control method of the nickel-based alloy wire in Example 2, the measured elongation of the final finished nickel-based alloy wire is 69%, and the measured area shrinkage is 71%.

Embodiment 3

[0028]Use VIM+ESR process to smelt nickel-based alloy raw materials into ingots. During the smelting process, the content of elements in nickel-based alloy raw materials is controlled as follows: C=0.006%, Si=0.02%, Mn=0.05%, P=0.005%, S=0.0007%, Cr=22.12%, Mo=8.81%, Nb+Ta=3.56%, Co=0.02%, Al=0.13%, Ti=0.17%, Cu=0.02%, Fe=0.01%, and the balance Ni.

[0029] In wire rolling, the spinning speed is 35m / s, and the spinning temperature is 1090°C. According to the reference value = [(the spinning temperature 2 ) / (Spinning speed 0.5 )] 0.5 Calculate the value of the reference value as [(1090 2 ) / (35 0.5 )] 0.5 =448, in the solution heat treatment step, the solution temperature is 1080°C, the holding time is 35min, and the furnace is water-cooled.

[0030] Utilizing the performance control method of the nickel-based alloy wire in Example 3, the measured elongation of the final finished nickel-based alloy wire is 68%, and the measured area shrinkage is 70%.

[0031] Utilizing th...

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Abstract

The invention relates to a method for controlling the properties of nickel-based alloy wires, which comprises the steps of preparing nickel-based alloy wires, using vacuum induction smelting+electroslag remelting or vacuum induction smelting+vacuum self-consumption process to smelt nickel-based alloy raw materials into ingots, through Ingot forging and wire rod rolling process make nickel base alloy wire rod, nickel base alloy wire rod property control method also comprises solid solution heat treatment step, according to reference value=[(spinning temperature 2 ) / (Spinning speed 0.5 )] 0.5 The calculated value determines the heat treatment temperature and holding time in the solution heat treatment step. When the reference value is greater than 410, the solution temperature is controlled at 1080-1100°C, and the holding time is controlled at 30-40 minutes; when the reference value is less than or equal to 410, The solid solution temperature is controlled at 1160-1180°C, and the holding time is controlled at 30-40 minutes. By using the method of the invention, the solid solution heat treatment parameters of the nickel-based alloy wire can be reasonably selected, and the mechanical properties of the nickel-based alloy wire are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of iron and steel metallurgy, and in particular relates to a method for controlling the properties of a nickel-based alloy wire. Background technique [0002] Nickel-based alloys have high room temperature and high temperature strength, good oxidation resistance and corrosion resistance, excellent creep and fatigue resistance, good structural stability and reliability, and are widely used in petrochemical, energy, machinery, environmental protection, etc. industry. At present, my country's demand for high-end nickel-based alloy wire is increasing year by year, but it basically relies on imports. In contrast, although a small amount of small coil heavy products can be supplied in China, there are many surface defects, poor stability, unstable composition, and poor mechanical properties. Defects such as broken wires and surface microcracks often occur when drawing wire materials in the later stage. For non-c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C19/05C22F1/10
CPCC22C19/055C22F1/10
Inventor 王岩谷宇李吉东刘浩曾莉徐芳泓
Owner 太原钢铁(集团)有限公司