Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cerium iron alloy and preparation and usage methods thereof

A technology of ferroalloy and alloy composition, which is applied in the field of rare earth ferroalloy, can solve the problems such as the limitation of alloy use range, and achieve the effect of high density, not easy to oxidize, and easy to preserve

Inactive Publication Date: 2015-07-08
包头市北科创业高新材料有限责任公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a ferrocerium alloy and its preparation and use method, which solves the problem that rare earth ferroalloys usually contain relatively high content of alloying elements such as silicon, aluminum, manganese, etc., which lead to a great limitation in the range of use of these alloys question

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1 (preparation of ferrocerium alloy with high cerium content):

[0016] (1) Ingredients: pure iron: the content is greater than 99.0wt% Fe. Metal cerium: the content is greater than 99.0wt% Ce. The balance is unavoidable impurity components. Weigh 850Kg of pure iron and 150Kg of metal cerium.

[0017] (2) Evenly distribute the above-weighed pure iron and metal cerium into a vacuum induction furnace with a nominal capacity of 1 ton. Then close the vacuum furnace to ensure that the melting chamber is isolated from the outside world.

[0018] (3) Turn on the vacuum system and control the pressure of the vacuum chamber below 60Pa. Then start to send electricity to heat and melt.

[0019] (4) Melting is complete, and the temperature of the alloy is controlled to 1570° C., and stirred for 5 minutes.

[0020] (5) Break the vacuum, open the vacuum tank door from the side, and then horizontally place an annular steel pipe with argon protective gas on the furnace...

Embodiment 2

[0022] Embodiment 2 (high cerium content ferrocerium alloy is applied in steelmaking):

[0023] Smelting alloy structural steel 40Cr. Smelting process: 100-ton electric arc furnace—LF refining furnace—RH vacuum degassing furnace—continuous casting.

[0024] For the above alloys, the suitable addition method is to add them in the RH vacuum refining furnace for steelmaking. The adding process is: when the ladle containing molten steel arrives at the RH refining station, first insert the RH immersion tube into the ladle 470mm, then perform vacuum treatment, and perform degassing, inclusion removal and other operations as required. Add 100Kg of the prepared cerium-iron alloy (with a Ce content of 13.5wt%) from the high-level silo of the vacuum chamber, and then circulate the molten steel for 6 minutes under vacuum conditions. Sampling and analysis of the composition shows that the Ce content is 0.01%, and the yield is 74%. The ingredients meet the requirements, the vacuum is bro...

Embodiment 3

[0025] Embodiment 3 (preparation of ferrocerium alloy with medium cerium content):

[0026] (1) Ingredients: pure iron: the content is greater than 99.0wt% Fe. Metal cerium: the content is greater than 99.0wt% Ce. The balance is unavoidable impurity components. Weigh 930Kg of pure iron and 70Kg of metal cerium.

[0027] (2) Evenly distribute the above-weighed pure iron and metal cerium into a vacuum induction furnace with a nominal capacity of 1 ton. Then close the vacuum furnace to ensure that the melting chamber is isolated from the outside world.

[0028] (3) Turn on the vacuum system and control the pressure of the vacuum chamber below 40Pa. Then start to send electricity to heat and melt.

[0029] (4) Melting is completed, and the temperature of the alloy is controlled to 1580° C., and stirred for 5 minutes.

[0030] (5) Break the vacuum, open the vacuum tank door from the side, and then horizontally place an annular steel pipe with argon protective gas on the furna...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A cerium iron alloy and preparation and usage methods thereof belong to the technology field of rare earth iron alloy. The component ranges of the alloy are: 0.1 to 15 wt% of cerium, and the rest is Fe and inevitable impurities, whose total amount is smaller than 1.0 wt%. The preparation technology adopts vacuum induction furnace for melting, takes cerium with purity larger than 99.0% and pure iron with purity larger than 99.0% as the raw materials, and then the raw materials are blended according to a formula that 0.1 to 15 wt% of cerium, and the rest is Fe. Then the mixture is melted in the vacuum induction furnace, the pressure of the vacuum room is controlled under 100 Pa, and the melting temperature is controlled in a range of 1550 to 1600. After the alloy is all melted, vacuum state is maintained for 4 to 6 minutes, then the vacuum is released. Finally ingot castings with qualified size are casted at the atmosphere of protection argon gas. The preparation method has the advantages that the alloy has a high density, and is not easy to be oxidized, pulverized, or damped; the yield of rare earth cerium is high during the steel-making process and the content of the rare earth cerium is stable.

Description

technical field [0001] The invention belongs to the technical field of rare earth iron alloys, and in particular provides a ferrocerium alloy and its preparation and use methods, which are suitable for iron and steel metallurgy. Background technique [0002] In the production process of high-quality steel, the application of rare earth in steel has always been an important research content of metallurgists. Rare earths not only have obvious effects on the removal of impurity elements (oxygen, sulfur, etc.) . But despite this, the addition method of rare earth and the stable control of rare earth content have always been the objects of research and attention of the majority of metallurgists. [0003] Rare earth addition methods can generally be divided into the following categories: (1) pure rare earth addition. Rare earth metals are prepared into rods, cored wires, etc., and alloyed by direct pressing into molten steel and feeding with a wire feeder. However, the disadva...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/00C22C33/04C21C7/10
Inventor 曲俊涛成国光吴铖川郁健
Owner 包头市北科创业高新材料有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com