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Method for preparing alloy containing vanadium, titanium, nickel and chrome by compounding marine placer and laterite nickel ore

A technology of lateritic nickel ore and nickel-chromium alloy, which is applied in the smelting field of alloy converters, can solve the problems of unsatisfactory metal smelting efficiency, low metal smelting efficiency, easy corrosion and rust, etc., to avoid Cl corrosion and rust, good economical Benefits and social benefits, the effect of not easy to break

Inactive Publication Date: 2017-10-17
GUANGXI SHENGLONG METALLURGICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing converters have the disadvantages of low strength and hardness, easy corrosion and rust after long-term use, and low metal smelting efficiency
[0004] The Chinese patent with the publication number CN101605877A announced that it uses a quenching substance in the alloy converter forging. Although the hardness and strength have been greatly improved, the anti-corrosion performance and metal smelting efficiency are not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Prepare raw materials by following alloy composition (mass percentage):

[0029] S≤0.10; Cl≤1.00; P≤0.08; V20.00~22.00; Ni18.00~20.00; Ti15.00~17.00; Cr22.00~24.00; Si≤0.50; S≤0.010; Avoid impurities.

[0030] The impurities, by mass percentage, include: Al≤1.00; C≤0.030; Na≤0.010.

[0031] Described process comprises steps:

[0032] Take the required sea placer in the magnetic separation furnace and perform two-stage magnetic separation. After the magnetic separation, it is ball milled and forged to make its weight ratio meet the design requirements, and the content of impurity elements is controlled as low as possible. Reserved in the pre-selection warehouse;

[0033] Put the laterite nickel ore in a smelting blast furnace for melting and refining, purify the laterite nickel ore, control the content of impurity elements as low as possible, and melt it into an electroslag ingot. The steps and process parameters are as follows: slag system: NiS:Ni2FeS4i:CaO: NaCl=60...

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PUM

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Abstract

The invention discloses a method for preparing alloy containing vanadium, titanium, nickel and chrome by compounding marine placer and laterite nickel ore. The alloy comprises, by weight, no more than 0.10% of S, no more than 1.00% of Cl, no more than 0.08% of P, 20.00-22.00% of V, 18.00-20.00% of Ni, 15.00-17.00% of Ti, 22.00-24.00% of Cr, no more than 0.50% of Si, no more than 0.010% of S, and the balance Fe and inevitable impurities. An alloy converter is high in strength and corrosion resistance by compounding the marine placer and the laterite nickel ore fully, and contains the marine placer subjected to two-stage magnetic separation, and Cl ions are applied to the surface of the converter, so that the alloy converter has high corrosiveness to metal, and the smelting efficiency of the metal is improved. The proportion of the Ti element in the alloy converter is very high, and the stability of fusion with the Cl ions is improved greatly; and corrosion and rusting of the alloy converter due to Cl is avoided.

Description

technical field [0001] The invention relates to a smelting method of an alloy converter, in particular to a method for obtaining a vanadium-containing titanium-nickel-chromium alloy from a compound ore of sea sand ore and laterite-nickel ore. Background technique [0002] Sea placer, formerly known as iron ore, is a product formed after the thick slurry from volcanic eruptions is washed by seawater. Sea placer has a wide range of uses, such as titanium extracted from rutile and ilmenite, which has the characteristics of small specific gravity, high strength, corrosion resistance, and high temperature resistance, and is widely used in missiles, rockets, and aviation industries. Zircon has the characteristics of high temperature resistance, corrosion resistance and thermal neutron impenetrability, and is widely used in foundry industry, nuclear reaction, nuclear submarine and so on. The rare elements contained in monazite, such as niobium, can be used in aircraft and rocket c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00C22C1/03C22F1/00C22B9/18
CPCC22C30/00C22B9/18C22C1/03C22F1/00
Inventor 柯雪利周和敏黄玉鸿蔡恒忠吕华民陈孝钢
Owner GUANGXI SHENGLONG METALLURGICAL CO LTD