Aluminium calcium manganese titanium iron alloy for steel-smelting deoxygenation and alloying

A technology of aluminum calcium manganese titanium and iron alloys, applied in the field of iron alloys, can solve the problems of easy condensation, unfavorable continuous casting and high melting point

Inactive Publication Date: 2005-01-26
郭庆成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The alloy is widely used because of its good deoxidation ability, not easy to pulverize, and no need to add titanium element when smelting titanium-containing low-alloy steel and micro-alloy steel, but its disadvantage is that its deoxidation product AI 2 o 3 The inclusions forme

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0012] Adopt above-mentioned first method, according to containing aluminum 89% aluminum ingot 349Kg, calcium iron 36Kg containing calcium 89%, manganese containing 75% ferromanganese 48Kg, titanium containing 85% ferrotitanium 11Kg and steel scrap 156Kg batching, divide The horse is placed in a power frequency induction furnace, heated and melted, fully melted into a liquid state, released from the furnace, cast ingots, broken into pieces, and the chemical composition (weight %) obtained is: AI57, Ca6, Mn6, Ti1.5, and the balance is Fe and Alcalcium-manganese-titanium-iron alloy with unavoidable impurities.

[0013] Using the above-mentioned alloy instead of ZL98120546.1 patented alloy as a deoxidizer for smelting titanium-containing low-alloy and micro-alloy steel, the contents of [O], [S] and inclusions in the steel are reduced, and the impact toughness and elongation of the steel are improved.

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PUM

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Abstract

An Al-Ca-Mn-Ti-Fe alloy for deoxidizing and alloying in smelting steel is provided. The chemical components (in % by weight) are as follows: Al20-70, Ca2-30, Mn2-30, Ti0.5-5, Fe and impurity.

Description

1. Technical field [0001] The invention relates to a ferroalloy, in particular to an aluminum-calcium-manganese-titanium-iron alloy used for final deoxidation and alloying of steelmaking. 2. Background technology [0002] Chinese patent ZL98120546.1 discloses a kind of aluminum-manganese-titanium-iron alloy used for final deoxidation and alloying of steelmaking. Its chemical composition (weight %) is: AI30-70, Mn4-30, Ti1-10, and the balance is Fe and Unavoidable impurities. The alloy is widely used because of its good deoxidation ability, not easy to pulverize, and no need to add titanium element when smelting titanium-containing low-alloy steel and micro-alloy steel, but its disadvantage is that its deoxidation product AI 2 o 3 The inclusions formed in the steel form strips, and their non-plasticity will reduce the impact toughness and elongation of the steel. Also, since the AI 2 o 3 It has a high melting point, and it is easy to condense during molten steel casting,...

Claims

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Application Information

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IPC IPC(8): C21C7/06C22C35/00
Inventor 郭庆成
Owner 郭庆成
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