Method of continuously casting nickel base corrosion-resistant alloy in composite alternating electromagnetic field

A corrosion-resistant alloy and AC electromagnetic field technology, applied in the field of metal materials, can solve problems such as affecting the oxygen content, weakening the surface quality of the continuous casting billet, weakening the electromagnetic field, etc. The effect of even and smooth inflow

Active Publication Date: 2016-05-04
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the general particle-reinforced metal matrix composites have low density and low viscosity, they are easy to stir under the electromagnetic field, while nickel-based corrosion-resistant alloys have high density and high viscosity, so the relevant parameters of electromagnetic continuous casting will vary. big difference
2) Continuous casting of nickel-based corrosion-resistant alloys is not easy as described in the patent, and the composite material is electromagnetically stirred in the molten pool above the crystallizer
This is because nickel-based corrosi

Method used

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  • Method of continuously casting nickel base corrosion-resistant alloy in composite alternating electromagnetic field
  • Method of continuously casting nickel base corrosion-resistant alloy in composite alternating electromagnetic field
  • Method of continuously casting nickel base corrosion-resistant alloy in composite alternating electromagnetic field

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Embodiment 1

[0029] A method for continuously casting Incoloy800H type nickel-based corrosion-resistant alloy billets under a compound AC electromagnetic field, the chemical composition of the Incoloy800H type nickel-based corrosion-resistant alloy is: C0.08%, Si0.52%, Mn0.80 according to mass percentage %, P0.023%, S0.002%, Cr20.13%, Ni30.88%, Ti0.52%, Al0.28%, Fe is the balance, its performance under vertical continuous casting machine and compound AC electromagnetic field Schematic diagram of continuous casting figure 1 As shown, proceed according to the following process steps:

[0030] (1) First place the high-frequency AC electromagnetic field device near the crystallizer of the vertical continuous casting machine, then place the low-frequency rotary electromagnetic stirrer under the vibration system, close to the spray system in the secondary cooling zone, and then raise the dummy rod Go to the lower end of the crystallizer, and turn on the crystallizer condensate water and the hig...

Embodiment 2

[0036] A method for continuously casting Incoloy800HT nickel-based corrosion-resistant alloy slabs under a compound AC electromagnetic field, the chemical composition of the Incoloy800HT nickel-based corrosion-resistant alloy is: C0.10%, Si0.52%, Mn1.0 %, P0.023%, S0.002%, Cr23.46%, Ni34.58%, Ti0.6%, Al0.6%, Fe is the balance, its performance under vertical continuous casting machine and compound AC electromagnetic field Schematic diagram of continuous casting figure 1 As shown, proceed according to the following process steps:

[0037] (1) First place the high-frequency AC electromagnetic field device near the crystallizer of the vertical continuous casting machine, then place the low-frequency linear electromagnetic stirrer under the vibration system, close to the spray system in the secondary cooling zone, and then raise the dummy bar to The lower part of the crystallizer, and turn on the condensate water of the crystallizer and the high-frequency AC electromagnetic field ...

Embodiment 3

[0043] A method for continuously casting Incoloy825 nickel-based corrosion-resistant alloy square billets under a compound AC electromagnetic field, the chemical composition of the Incoloy825 nickel-based corrosion-resistant alloy is: C0.016%, Si0.203%, Mn0.506 according to mass percentage %, P0.033%, S0.017%, Cr22.5%, Ni39.1%, Ti0.709%, Mo3.51%, Cu2.15%, Al0.129%, Fe is the balance, which in stand The schematic diagram of the continuous casting machine and the continuous casting under the compound AC electromagnetic field is as follows figure 1 As shown, proceed according to the following process steps:

[0044] (1) First place the high-frequency AC electromagnetic field device near the crystallizer of the vertical continuous casting machine, then place the low-frequency rotary electromagnetic stirrer under the vibration system, close to the spray system in the secondary cooling zone, and then raise the dummy rod Go to the lower end of the crystallizer, and turn on the cryst...

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Abstract

The invention discloses a method of continuously casting a nickel base corrosion-resistant alloy in a composite alternating electromagnetic field. The method comprises the processing steps that (1) a high-frequency alternating electromagnetic field device is arranged near a crystallizer of a vertical continuous casting machine, a low-frequency electromagnetic stirrer is arranged below a vibrating system and is close to a second cold area spraying system, a dummy bar rises to the lower end part of the crystallizer, and condensation water of the crystallizer and the high-frequency alternating electromagnetic field device are started; (2) refined nickel base corrosion-resistant alloy liquid is poured into the crystallizer, the liquid level of molten metal is kept to be flush with the upper edge of a high-frequency alternating electromagnetic coil, the vibrating system is started, and the second cold area spraying system and the low-frequency electromagnetic stirrer are started simultaneously; (3) the vertical continuous casting machine is started, the dummy bar moves downwards, and a casting speed is kept at 0.4-1.5m/min; and (4) after a casting blank reaches the required size, the nickel base corrosion-resistant alloy casting blank is captured, and the casting of casting blanks of next batch begins. The surface quality and internal quality of the nickel base corrosion-resistant alloy continuous casting blank prepared by the method are improved greatly.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a method for continuously casting a nickel-based corrosion-resistant alloy under a compound AC electromagnetic field. Background technique [0002] Nickel-based corrosion-resistant alloys are an important corrosion-resistant material. Compared with general stainless steel, other corrosion-resistant metals and non-metallic materials, they have a variety of corrosion-resistant properties in various corrosive environments (including electrochemical corrosion and chemical corrosion). The ability to form corrosion damage (including general corrosion, localized corrosion and stress corrosion, etc.), and has good mechanical properties and processing properties, its comprehensive corrosion resistance is far better than stainless steel and other corrosion-resistant metal materials, especially suitable for Harsh medium environment under modern industrial technology. At...

Claims

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Application Information

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IPC IPC(8): B22D11/115B22D11/22
CPCB22D11/001B22D11/115B22D11/225
Inventor 王恩刚邓安元王菲许秀杰张兴武
Owner NORTHEASTERN UNIV
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