Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Special continuous casting crystallizer casting powder for ESP low carbon

A continuous casting mold and mold flux technology, which is applied in the field of ESP low-carbon continuous casting mold mold flux, can solve the problem of affecting the surface quality of the billet, the lubrication effect, the heat transfer capacity can not be well satisfied, and the casting speed is restricted and other problems, to achieve good lubrication and heat transfer effects, prevent quality defects, and fast melting speed

Active Publication Date: 2018-11-20
XIXIA LONGCHENG METALLURGICAL MATERIALS CO LTD
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, the mold flux for medium-carbon steel used in casting ESP low-carbon steel cannot satisfy the lubrication effect and heat transfer capacity, which restricts the improvement of casting speed and also affects the surface quality of the final slab, such as depressions, etc.

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

[0046] In this embodiment, the raw material of 100 parts by weight of special mold powder for continuous casting mold for ESP low carbon steel contains 11 parts by weight of fluorite, 5 parts by weight of clinker, 7 parts by weight of white alkali, and 0.5 parts by weight of imported carbon. Black, 0.8 parts by weight of sodium fluoride, 2 parts by weight of earthy graphite, 46 parts by weight of wollastonite with an ignition loss of less than 3, 4 parts by weight of lithium carbonate, 1 part by weight of lithium carbonate, 1.5 parts by weight of borax, 4 parts by weight of calcite, 4.4 parts by weight of magnesia, 3 parts by weight of bauxite, 7 parts by weight of cryolite, 2 parts by weight of binder and 0.8 parts by weight of water reducing agent.

[0047] The chemical composition of the ESP low-carbon special continuous casting mold powder per 100 parts by weight contains 32.57 parts by weight of CaO and 28.63 parts by weight of SiO 2 , 4.89 parts by weight of MgO, 4.86 pa...

Embodiment 2

[0051] In this embodiment, every 100 parts by weight of ESP low-carbon steel special continuous casting mold powder contains 12 parts by weight of fluorite, 4 parts by weight of clinker, 9 parts by weight of white alkali, and 1.4 parts by weight of imported Carbon black, 1 part by weight of sodium fluoride, 4 parts by weight of earthy graphite, 40 parts by weight of wollastonite with an ignition loss of less than 3, 3 parts by weight of lithium carbonate, 2 parts by weight of lithium carbonate, 1.2 parts by weight of Parts of borax, 3 parts by weight of calcite, 6.5 parts by weight of magnesia, 5.1 parts by weight of bauxite, 5 parts by weight of cryolite, 2 parts by weight of binder and 0.8 parts by weight of water reducer.

[0052] The chemical composition of every 100 parts by weight of the ESP low-carbon special continuous casting mold powder contains 29.5 parts by weight of CaO and 25.04 parts by weight of SiO 2 , 6.69 parts by weight of MgO, 5.8 parts by weight of Al 2 ...

Embodiment 3

[0056] In this embodiment, every 100 parts by weight of ESP low-carbon steel special continuous casting mold powder contains 13 parts by weight of fluorite, 4.5 parts by weight of clinker, 8 parts by weight of white alkali, and 1.8 parts by weight of imported Carbon black, 2 parts by weight of sodium fluoride, 4.8 parts by weight of earthy graphite, 32.5 parts by weight of wollastonite with an ignition loss of less than 3, 5 parts by weight of lithium limestone, 3 parts by weight of lithium carbonate, 1.6 parts by weight of Parts of borax, 5 parts of calcite, 6 parts of magnesia, 5 parts of bauxite, 5 parts of cryolite, 2 parts of binder and 0.8 parts of water reducer.

[0057]The chemical composition of the ESP low-carbon special continuous casting mold flux per 100 parts by weight contains 28.3 parts by weight of CaO and 22.7 parts by weight of SiO 2 , 6.2 parts by weight of MgO, 6.27 parts by weight of Al 2 o 3 , 9.98 parts by weight of Na 2 O, 10.1 parts by weight of F,...

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
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to special continuous casting crystallizer casting powder for ESP low carbon, and belongs to the field of metallurgy accessories. The casting powder comprises chemical componentsincluding, by weight, 28-33 parts of CaO, 22-29 parts of SiO2, 4.5-7.5 parts of MgO, 4.5-7 parts of Al2O3, 7-10 parts of Na2O, 8-11 parts of F, 0.3-1.5 parts of B2O3, 0.5-1 part of Li2O and 1-3.5 parts of C. The casting powder has the low melting temperature, low viscosity and high melting speed, the casting powder can be rapidly consumed when the continuous casting pulling rate is 5-7 m / min, andaccordingly heat transfer and lubricating performance between a continuous casting blank shell and a crystallizer copper plate are guaranteed.

Description

technical field [0001] The invention relates to the field of metallurgical auxiliary materials, and in particular to a mold slag specially used for ESP low-carbon continuous casting molds. Background technique [0002] Since 2008, domestic steel production capacity has been overcapacitated, but steel costs have remained high. Domestic steel companies have taken measures to improve their operations, such as tapping potential by benchmarking, reducing costs and increasing efficiency, and developing high value-added varieties of steel. [0003] At present, the production method generally adopted by most domestic steel mills is to cast high-quality micro-alloy molten steel with continuous casting machines, and then cool the slabs for secondary heating and then roll them. This scheme is generally feasible, but Production costs are higher. This requires a large amount of alloying elements due to the additional cooling. [0004] Over the years, many casting and rolling workshops ...

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): B22D11/111
CPCB22D11/111
Inventor 王月陈永彦李晓阳彭会志秦教武徐金岩马帅王希彬任义
Owner XIXIA LONGCHENG METALLURGICAL MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products