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

Knotting method of casting ingot mold in preparation process of vanadium-iron alloy

A preparation process, a technology of vanadium-iron alloy, applied in the field of metallurgy, can solve the specific process of ingot mold knotting, related parameters and knotting refractory selection. Not much research and analysis have been carried out, and ingot mold knotting materials and processes have not been done. Relevant introduction, not related to alloy penetration and other issues, to achieve the effect of reducing the amount of brine, enhancing the knot density, and enhancing the knot strength

Inactive Publication Date: 2016-08-31
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
View PDF8 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent does not involve the method of reducing alloy penetration in the alloy casting process and related solutions
[0005] (2) Patent CN201410017801.9 discloses the smelting method of high-vanadium iron, adding smelting mixture for smelting, controlling the temperature of the vanadium-iron alloy liquid in the furnace to be above 1900°C, and the vanadium content in the vanadium-iron alloy liquid is 78-82% and When the aluminum content is lower than 1.5%, the vanadium-iron alloy liquid and vanadium-containing rich slag are poured into the ingot mold preheated above 500°C, cooled, demoulded, and crushed to obtain a high vanadium content of more than 80%. Ferrovanadium, the invention effectively utilizes the waste heat of the ingot mold baking, but there is no relevant introduction on the knotting material and process of the ingot mold
Due to the limitation of knotted refractory material in the casting ingot mold, the erosion of the lining refractory material and the penetration of molten alloy liquid into the inner lining of the ingot mold are inevitable during the pouring and cooling process.
At present, most of the patents related to ingot molds for ferrovanadium smelting focus on the new structure and new functions of the ingot molds, and there is not much research and analysis on the specific process, related parameters and knotting refractory selection of the ingot mold knotting.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Knotting method of casting ingot mold in preparation process of vanadium-iron alloy
  • Knotting method of casting ingot mold in preparation process of vanadium-iron alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The specific steps of the knotting method of casting ingot mold in the preparation process of vanadium-iron alloy are as follows:

[0052] a. The knotting material of the ingot mold (the main knotting material is used, that is, the mixture with a mass ratio of magnesia:magnesia fire clay = 2.5:1) is sequentially crushed, screened and particle size classified, until the knotting main material is in the particle size range 0-10mm, 10 parts by weight of material, sent to the knotting area;

[0053] b. Use industrial MgCl 2 Prepare brine with a concentration of 2.1kg / L and industrial water at room temperature, and transport the prepared brine to the rotary knotting area;

[0054] c. In the rotary knotting area, use a mixer to mix the above-mentioned knotting main ingredients with the above-mentioned bittern according to the mass ratio of knotting main ingredients: bittern = 3: 2, to obtain the knotting main ingredients mixed ingredients;

[0055] d. Place the knotting mol...

Embodiment 2

[0059] The specific steps of the knotting method of casting ingot mold in the preparation process of vanadium-iron alloy are as follows:

[0060] a. Sequentially carry out crushing, screening and particle size classification for the knotting material of the ingot mold (the main knotting material is used, that is, the mixture whose mass ratio is magnesia:magnesia fire clay=3.0:1), and the particle size range of the knotting main material Divided into 0 ~ 5mm and 5 ~ 10mm, sent to the knotting area;

[0061] b. Use industrial MgCl 2 Prepare brine with a concentration of 2.1kg / L and industrial water at room temperature, and transport the prepared brine to the rotary knotting area;

[0062] c. In the rotary knotting area, use a mixer to mix the above-mentioned knotting main ingredients with the above-mentioned bittern according to the mass ratio of knotting main ingredients: bittern = 3.5: 2, to obtain the knotting main ingredients mixed ingredients;

[0063] d. Place the knotti...

Embodiment 3

[0067] The specific steps of the knotting method of casting ingot mold in the preparation process of vanadium-iron alloy are as follows:

[0068] a. Sequentially carry out crushing, screening and particle size classification on the knotting material of the ingot mold (using the main knotting material, that is, a mixture with a mass ratio of magnesia:magnesia fire clay = 3.5:1), and divide the knotting main material into the particle size range Divided into 0 ~ 5mm and 5 ~ 10mm, sent to the knotting area;

[0069] b. Use industrial MgCl 2 Prepare brine with a concentration of 2.5kg / L and industrial water at room temperature, and transport the prepared brine to the rotary knotting area;

[0070] c. In the rotary knotting area, use a mixer to mix the above-mentioned knotting main ingredients with the above-mentioned bittern according to the mass ratio of knotting main ingredients: bittern = 3: 2, to obtain the knotting main ingredients mixed ingredients;

[0071] d. Place the k...

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

The invention discloses a knotting method of a casting ingot mold in the preparation process of a vanadium-iron alloy, and belongs to the field of metallurgy. The knotting method of the casting ingot mold comprises the following steps of using magnesite and magnesium fire clay with the granularity intervals of 0 to 5mm and 5 to 10mm as knotting main materials; using vanadium-iron smelting corundum slag with the granularity interval of 0 to 10mm as knotting auxiliary materials; mixing the knotting main materials and the knotting auxiliary materials with brine to obtain a knotting mixed material; and performing inner-outer layer knotting on the knotting mixed material according to the proportion requirement. According to the method, the loss amount of vanadium in the vanadium-iron casting process is reduced, and the vanadium-iron smelting corundum slag can be recycled. According to the ingot mold knotted by the method, the permeation thickness of the vanadium-iron alloy is as low as 17.6mm, the vanadium loss in an actual permeated alloy is as low as 3.82kg, and the loss of vanadium in casting of a single furnace is about 0.23 percent.

Description

technical field [0001] The invention belongs to the field of metallurgy and relates to a knotting method, in particular to a knotting method for casting ingot molds in the preparation process of vanadium-iron alloy. Background technique [0002] As the most widely used vanadium microalloying master alloy in the iron and steel smelting process, vanadium can react with carbon and nitrogen in steel to form small and hard refractory metal carbides and nitrides, and play a role in fine-grain strengthening and The role of precipitation strengthening, thereby improving the comprehensive performance of steel. At present, the aluminothermic reduction process is mainly used in the world for the preparation of vanadium-iron alloy, which is smelted by one-step method of straight furnace or multi-stage method of tilting electric furnace. However, due to the characteristics of high temperature in the smelting system, large amount of slag, and easy oxidation of alloy products under high t...

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 Applications(China)
IPC IPC(8): B22D7/06
CPCB22D7/068
Inventor 余彬孙朝晖刘武汉唐红建钟国梅景涵杜光超陈海军尹丹凤王唐林
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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