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Method for smelting high-tungsten high-cobalt-nickel alloy through electroslag remelting, high-tungsten high-cobalt-nickel alloy and shaped charge liner

A technology for electroslag remelting and nickel alloying, which is applied in the field of metallurgy to achieve the effects of reducing power consumption, good surface quality and reducing sulfur content

Active Publication Date: 2020-12-04
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

High-tungsten, high-cobalt-nickel alloys have high melting point (1490°C-1510°C) material properties and low-sulfur, low-inclusion smelting requirements, but there is no electroslag remelting slag system and smelting method for high-tungsten, high-cobalt-nickel alloys. to report

Method used

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  • Method for smelting high-tungsten high-cobalt-nickel alloy through electroslag remelting, high-tungsten high-cobalt-nickel alloy and shaped charge liner
  • Method for smelting high-tungsten high-cobalt-nickel alloy through electroslag remelting, high-tungsten high-cobalt-nickel alloy and shaped charge liner
  • Method for smelting high-tungsten high-cobalt-nickel alloy through electroslag remelting, high-tungsten high-cobalt-nickel alloy and shaped charge liner

Examples

Experimental program
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Embodiment 1

[0059] This embodiment provides an electroslag remelting slag system, calculated by mass percentage, including: 43% CaF 2 , 28% CaO, 16% Al 2 o 3 , 5% MgO and 8% SiO 2 . The electroslag remelted slag system has a melting point of 1370°C.

[0060] The slag-based raw materials are heated and melted in an electric arc furnace, cast and cooled to room temperature, and then crushed by a crusher, sieved to obtain particles with a particle size of 3-15 mm, and then mechanically mixed. Place the mixed pre-melted slag in a baking furnace, bake it at 500°C for 6 hours to obtain the slag material, and keep it warm at 200°C for use.

[0061] Vacuum induction smelting (C+Al deoxidation) is used to prepare electrode ingots. After removing the riser, lathing, cleaning and baking, the 20mm thick slices of the ingot head and ingot tail are respectively removed to obtain usable electrode ingots; the alloy is detected by a sulfur tester Medium sulfur content, large sample electrolysis to de...

Embodiment 2

[0066] This embodiment provides an electroslag remelting slag system, calculated by mass percentage, including: 44% CaF 2 , 25% CaO, 18% Al 2 o 3 , 3% MgO and 10% SiO 2 . The melting point of the electroslag remelted slag system is 1360°C.

[0067] The slag-based raw materials are heated and melted in an electric arc furnace, cast and cooled to room temperature, and then crushed by a crusher, sieved to obtain particles with a particle size of 3-15 mm, and then mechanically mixed. The mixed pre-melted slag was placed in a baking furnace, baked at 480°C for 8 hours to obtain slag material, and kept at 180°C for later use.

[0068] Vacuum induction melting (Al deoxidation) is used to prepare electrode ingots. After removing the riser, lathing, cleaning, and baking, the ingot head and ingot tail thick slices are respectively removed to obtain usable electrode ingots; the sulfur content in the alloy is detected by a sulfur meter. , large sample electrolysis to detect inclusion...

Embodiment 3

[0073] This embodiment provides an electroslag remelting slag system, calculated by mass percentage, including: 43% CaF 2 , 27% CaO, 17% Al 2 o 3 , 4.5% MgO and 8.5% SiO 2 . The electroslag remelted slag system has a melting point of 1400°C. Industrial fluorspar (CaF 2 >98%), lime (CaO >94%), alumina powder (Al 2 o 3 >97%), magnesia (MgO>97%) and silica (SiO 2 >98%) as raw material.

[0074] The slag-based raw materials are heated and melted in an electric arc furnace, cast and cooled to room temperature, and then crushed by a crusher, sieved to obtain particles with a particle size of 3-15 mm, and then mechanically mixed. The mixed pre-melted slag was placed in a baking furnace, baked at 520°C for 4 hours to obtain slag, and kept at 220°C for use.

[0075] Vacuum induction melting (Al deoxidation) is used to prepare electrode ingots. After removing the riser, lathing, cleaning, and baking, the ingot head and ingot tail thick slices are respectively removed to obtain ...

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Abstract

The invention provides a method for smelting a high-tungsten high-cobalt-nickel alloy through electroslag remelting, the high-tungsten high-cobalt-nickel alloy and a shaped charge liner. The method for smelting the high-tungsten high-cobalt-nickel alloy through electroslag remelting comprises steps that raw materials of an electroslag remelting slag system are subjected to slagging, then an electrode ingot made of the raw materials of the high-tungsten high-cobalt-nickel alloy is smelted, and the high-tungsten high-cobalt-nickel alloy is obtained, wherein the electroslag remelting slag systemcomprises the following raw materials in percentage by mass: 39-44% of CaF2, 24-28% of CaO, 14-18% of Al2O3, 3-5% of MgO and 5-10% of SiO2. The high-tungsten high-cobalt-nickel alloy is prepared by using the method for smelting the high-tungsten high-cobalt-nickel alloy through electroslag remelting. The raw material of the shaped charge liner comprises the high-tungsten high-cobalt-nickel alloy.According to the electroslag remelting slag system provided by the invention, the sulfur content of the alloy can be effectively reduced, the purity of the alloy is improved, and the high-plasticity alloy with good surface quality is obtained.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a method for smelting a high-tungsten, high-cobalt-nickel alloy by electroslag remelting, a high-tungsten, high-cobalt-nickel alloy and a drug-type cover. Background technique [0002] The amount of alloy impurities will have a significant impact on the properties of the alloy. At present, during the alloy smelting process, the oxygen element in the alloy is controlled by adding a deoxidizer and using a composite deoxidation process. During the smelting process, the smelting equipment (crucible, chute, ingot mold, etc.) and the deoxidation process inevitably introduce impurity elements such as oxygen and sulfur, while vacuum induction melting and vacuum consumable melting are not ideal for the removal of inclusions. The current smelting process only relies on the purification of raw materials to control the sulfur content in the alloy, which cannot meet the requirements of the alloy fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C30/00C22C19/03C22B9/18C22C1/02
CPCC22B9/18C22C1/02C22C1/023C22C19/03C22C27/04C22C30/00Y02P10/25
Inventor 杨树峰杨曙磊郑磊赵朋王宁曹方徐志强
Owner UNIV OF SCI & TECH BEIJING
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