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

RH refining system using purifying agent core-spun yarn and refining method thereof

A technology of purifying agent and cored wire, applied in RH refining system and its refining field, can solve the problem of limited purification effect of molten steel, and achieve the effect of promoting mixing effect, small size and uniform distribution

Inactive Publication Date: 2017-11-17
MAANSHAN HUASHENG METALLURGICAL SCI & TECH DEV
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has a good desulfurization effect, the purification effect on molten steel is limited

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
  • RH refining system using purifying agent core-spun yarn and refining method thereof
  • RH refining system using purifying agent core-spun yarn and refining method thereof
  • RH refining system using purifying agent core-spun yarn and refining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] like figure 1 and image 3 As shown, a RH refining system using purifying agent cored wire in this embodiment includes a RH refining furnace 100 and a wire feeding unit 200, and the RH refining furnace 100 includes a ladle 110, a vacuum chamber 120 and a vacuum mechanism 160 , the vacuum chamber 120 is arranged on the top of the ladle 110, the riser 131 and the downcomer 132 at the bottom of the vacuum chamber 120 are inserted into the ladle 110, the vacuum mechanism 160 is arranged on the top of the vacuum chamber 120, and the vacuum mechanism 160 is used for vacuuming The chamber 120 provides a vacuum environment; the RH refining furnace 100 also includes an air blowing mechanism 140, and the nozzle 141 of the air blowing mechanism 140 is arranged at the lower part of the riser pipe 131, and the air blower mechanism 140 blows argon into the riser pipe 131 through the nozzle 141, Promote the rise of molten steel in the riser pipe 131 . The vacuum chamber 120 is provi...

Embodiment 2

[0086] The basic content of this embodiment is the same as that of Example 1, except that the cleaning agent is in the form of granules, the cleaning agent is in the form of spherical particles, and the diameter of the particles is 5-10mm; the cleaning agent includes effective components and bonding components, and the effective components The mass ratio to the adhesive component is (5-10):1, preferably 5:1 in this embodiment.

[0087] The effective components in the purification agent of this embodiment also include graphite powder, red jade soil and magnesium-manganese alloy; the effective components are composed according to the following mass parts, 50-70 parts of metal aluminum, 20-40 parts of lime powder, and 0-30 parts of graphite powder part, 5-20 parts of titanium dioxide, 5-15 parts of silicon carbide powder, 2-4 parts of biomass, 0-1 part of red jade soil, 0-2 part of magnesium-manganese alloy; the present embodiment is 50 kg of metal aluminum, 20 kg of lime powder, ...

Embodiment 3

[0090] The basic content of this embodiment is the same as that of Example 1, except that the adhesive component of the purifying agent also includes starch and kaolin, and the adhesive component is composed of the following parts by mass: 60-80 parts of kaolin, 20-40 parts of sulfonated phenolic resin parts, starch 0-10 parts, oil sands 0-5 parts. This embodiment is composed according to the following mass: 80 kg of kaolin, 40 kg of sulfonated phenolic resin, 5 kg of starch, and 2 kg of oil sand. The mass ratio of the effective component to the binding component is 6:1, and the mixture is obtained after the mixing is completed. Experimental result is basically the same as embodiment 1.

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses an RH refining system and a refining method using a purifying agent cored wire, and belongs to the technical field of RH refining. The RH refining furnace of the present invention includes a ladle, a vacuum chamber and a vacuum pumping mechanism, the vacuum chamber is arranged on the upper part of the ladle, and the ascending pipe and the descending pipe at the lower part of the vacuum chamber are inserted into the ladle; The wire conduit, the driving wheel and the driven wheel of the driving mechanism are arranged correspondingly, the driving mechanism is used to drive the purifying agent cored wire, the stabilizing wheel set is arranged between the driving mechanism and the wire feeding conduit; the conduit outlet of the wire feeding conduit is set at the riser pipe The upper part: Purifying agent cored wire is fed into the RH refining furnace to purify molten steel through the wire feeding unit. The cleaning agent cored wire of the present invention is in contact with molten steel on the upper part of the riser, thereby promoting the mixing effect of the cleaning agent cored wire and molten steel, and the cleaning agent cored wire can promote the growth, floating and removal of inclusions, Thereby improving the cleanliness of molten steel.

Description

technical field [0001] The invention belongs to the technical field of RH refining, and more specifically relates to an RH refining system and a refining method using a purifying agent cored wire. Background technique [0002] The performance of steel mainly depends on the chemical composition and structure of steel. The existence of inclusions in the steel destroys the continuity of the steel matrix and causes the inhomogeneity of the steel structure, which will affect the ductility, strength, toughness, fatigue performance, smoothness, corrosion resistance, welding performance and electromagnetic properties of the steel. big impact. The continuous casting process will also cause nozzle nodules, which have a great impact on the production of the continuous casting process and the quality of the slab. Therefore, iron and steel researchers from various countries have devoted a lot of energy to the research on the removal of inclusions in steel, and have also achieved great ...

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): C21C7/10C21C7/06C21C7/068
CPCC21C7/10C21C7/0056C21C7/06C21C7/068
Inventor 王海军万新宇刘磊从俊强赵志刚赵芃荣哲
Owner MAANSHAN HUASHENG METALLURGICAL SCI & TECH DEV
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