CN102773426A - Method for producing continuous casting slab by crystallizer of near-net-shape beam blank continuous casting machine - Google Patents

Method for producing continuous casting slab by crystallizer of near-net-shape beam blank continuous casting machine Download PDF

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Publication number
CN102773426A
CN102773426A CN2012102770810A CN201210277081A CN102773426A CN 102773426 A CN102773426 A CN 102773426A CN 2012102770810 A CN2012102770810 A CN 2012102770810A CN 201210277081 A CN201210277081 A CN 201210277081A CN 102773426 A CN102773426 A CN 102773426A
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CN
China
Prior art keywords
alar part
continuous casting
covering slag
crystallizer
slag
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Pending
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CN2012102770810A
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Chinese (zh)
Inventor
李雷
单兆光
徐文海
周怀斌
葛海斌
于铭杰
石磊
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Laiwu Iron and Steel Group Co Ltd
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Laiwu Iron and Steel Group Co Ltd
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Priority to CN2012102770810A priority Critical patent/CN102773426A/en
Publication of CN102773426A publication Critical patent/CN102773426A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a method for producing a continuous casting slab by a crystallizer of a near-net-shape beam blank continuous casting machine. A cavity of the crystallizer comprises four wing parts and a web part, so that the cross section the cavity of the crystallizer is H-shaped, wherein in the process of adding casting powders, the casting powders are added into the four wing parts and the web part in sequence from far to near according to distances away from slag adding devices; and in the process of measuring the thicknesses of the casting powders, the thicknesses of the casting powders are measured according to the sequence identical to casting powder adding sequence. According to the method for producing the continuous casting slab disclosed by the invention, the thicknesses of the casting powders at different parts of the cavity of the crystallizer of the near-net-shape blank continuous casting machine are uniform, so that the functions of the casting powders can be exerted sufficiently.

Description

Produce the method for continuous casting billet with near finish shape billet continuous casting machine crystallizer
Technical field
The present invention relates to a kind of method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer.
Background technology
Crystallizer protecting residue is the multi-functional metallurgic auxiliary materials that uses in the continuous casting production operation process, plays an important role during its quality at smooth production of continuous casting working procedure and strand improves.The performance of covering slag effect remove with performance own mutually outside the Pass, also closely related with its method of operating.For example, various crackles and surperficial slag inclusions such as production accident such as bleed-out, the base that crouches and continuous casting billet lobe, transverse fissure, chink, scab, mass defect such as depression is all closely related with the method for operating of covering slag.
The special-shaped billet continuous casting machine structure of mould is complicated, and the cross section in the chamber of crystallizer is H shape, therefore, is difficult to realize adding covering slag automatically, can only manual work add covering slag usually.Manual work adds covering slag and has very big unstability, and for example, in the operating process that adds covering slag, covering slag thickness often occurs than great fluctuation process.In casting process, if covering slag is blocked up, the slag bar that then produces is difficult to find, cause the slag bar to can not get in time handling and hinder slag liquid inflow, influence the base shell evenly lubricated and cool off, thereby be prone to bring out production accident; If covering slag is thin excessively, the protection weak effect of covering slag then, the fusing effect is bad, causes problems such as molten steel surface crust, base shell insufficient lubrication, even phenomenons such as molten steel is exposed occur, can cause production accidents such as slab quality defective or generation bleed-out when serious.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and a kind of method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer is provided.
According to method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer of the present invention; The chamber of crystallizer comprises four alar parts and web portion; Make the cross section in chamber of crystallizer become H shape; Wherein, in adding the process of covering slag, covering slag is added the order that slag equipment draws near by distance add respectively in four alar parts and the web portion; In the process of measuring covering slag thickness, according to measuring the thickness of covering slag with the order of the sequence consensus that adds covering slag.
According to exemplary embodiment of the present invention, with the THICKNESS CONTROL of covering slag in the scope of 35mm-45mm.
According to exemplary embodiment of the present invention; Four alar parts can comprise first alar part, second alar part, flap portion and the 4th alar part; First alar part and flap portion can be positioned at an end of web portion; Second alar part and the 4th alar part can be positioned at the other end of web portion; First alar part and second alar part can be positioned at a side of web portion, and flap portion and the 4th alar part can be positioned at the opposite side of web portion, and first alar part and second alar part distance add slag equipment can be far away apart from adding slag equipment than flap portion and the 4th alar part.
According to exemplary embodiment of the present invention, in adding the process of covering slag, can covering slag be added in the chamber of crystallizer according to the order of first alar part, second alar part, web portion, flap portion and the 4th alar part.
According to exemplary embodiment of the present invention, in adding the process of covering slag, can covering slag be added in the chamber of crystallizer according to the order of second alar part, first alar part, web portion, the 4th alar part and flap portion.
According to exemplary embodiment of the present invention, in adding the process of covering slag, can covering slag be added in the chamber of crystallizer according to the order of first alar part, second alar part, web portion, the 4th alar part and flap portion.
According to exemplary embodiment of the present invention, in adding the process of covering slag, can covering slag be added in the chamber of crystallizer according to the order of second alar part, first alar part, web portion, flap portion and the 4th alar part.
According to exemplary embodiment of the present invention, can add covering slag according to sparing no effort to, spare the principle that adds and add less.
According to exemplary embodiment of the present invention, regularly, quantitatively, fixed point adds covering slag.
According to exemplary embodiment of the present invention, regularly, the one-point measurement covering slag.
According to the method for production continuous casting billet of the present invention, can farthest make covering slag even, thereby give full play to the effect of covering slag at the various piece thickness in the chamber of the crystallizer of near finish shape billet continuous casting machine.
Description of drawings
The following description of the exemplary embodiment of carrying out in conjunction with the drawings, these and/or other aspect of the present invention and advantage will become clear and be easier to and understand, wherein:
Fig. 1 is the schematic cross-sectional view in chamber of the crystallizer of near finish shape billet continuous casting machine.
The specific embodiment
Describe the method for producing continuous casting billet with near finish shape billet continuous casting machine crystallizer in detail with exemplary embodiment below with reference to accompanying drawings according to of the present invention.
Fig. 1 shows the cross section in chamber of the crystallizer of near finish shape billet continuous casting machine.With reference to Fig. 1, the chamber of the crystallizer of near finish shape billet continuous casting machine is H shape substantially, and it comprises first alar part 1, second alar part 2, flap portion 3, the 4th alar part 4 and web portion 5.First alar part 1, second alar part 2, flap portion 3 and the 4th alar part 4 all communicate with web portion 5.According to exemplary embodiment of the present invention, first alar part 1 and flap portion 3 are positioned at an end (that is left end) of web portion 5; The other end that second alar part 2 and the 4th alar part 4 are positioned at web portion 5 (promptly; Right-hand member), first alar part 1 and second alar part 2 are positioned at a side (that is upside) of web portion 5; Flap portion 3 and the 4th alar part 4 are positioned at the opposite side (that is downside) of web portion 5.
According to exemplary embodiment of the present invention; When in the chamber of near finish shape billet continuous casting machine crystallizer, adding covering slag; Covering slag added slag operation equipment by distance or add the order that the slag operation personnel draw near add respectively in four alar parts and the web portion; And in the process of measuring covering slag thickness, according to measuring the thickness of covering slag with the order of the sequence consensus that adds covering slag.Can avoid effectively apart from add slag equipment or add the not enough problem of covering slag in the slag operation personnel chamber at a distance through such operation.
According to exemplary embodiment of the present invention; When adding slag equipment or add the slag operation personnel when being positioned at the downside of web portion 5; Promptly; When adding slag equipment or adding slag operation personnel distance flap portion 3 and the 4th alar part 4 than distance first alar parts 1 and second alar part 2 closely the time, in adding the process of covering slag, add the slag operation personnel and can be all the time covering slag be added in the chamber of crystallizer according to the order of first alar part 1, second alar part 2, web portion 5, flap portion 3 and the 4th alar part 4.At this moment; In the process of measuring covering slag thickness; Operating personnel can be according to measuring the thickness of covering slag with the order of the sequence consensus that adds covering slag,, measures the thickness of covering slag according to the order of first alar part 1, second alar part 2, web portion 5, flap portion 3 and the 4th alar part 4 that is.Can avoid effectively apart from add slag equipment or add the not enough problem of covering slag in the slag operation personnel chamber at a distance through such operation.
According to exemplary embodiment of the present invention; When adding slag equipment or add the slag operation personnel when being positioned at the downside of web portion 5; Promptly; When adding slag equipment or adding slag operation personnel distance flap portion 3 and the 4th alar part 4 than distance first alar parts 1 and second alar part 2 closely the time, in adding the process of covering slag, adding the slag operation personnel can add covering slag in the chamber of crystallizer according to the order of second alar part 2, first alar part 1, web portion 5, the 4th alar part 4 and flap portion 3.At this moment; In the process of measuring covering slag thickness; Operating personnel can be according to measuring the thickness of covering slag with the order of the sequence consensus that adds covering slag,, measures the thickness of covering slag according to the order of second alar part 2, first alar part 1, web portion 5, the 4th alar part 4 and flap portion 3 that is.Can avoid effectively apart from add slag equipment or add the not enough problem of covering slag in the slag operation personnel chamber at a distance through such operation.
According to exemplary embodiment of the present invention; When adding slag equipment or add the slag operation personnel when being positioned at the downside of web portion 5; Promptly; When adding slag equipment or adding slag operation personnel distance flap portion 3 and the 4th alar part 4 than distance first alar parts 1 and second alar part 2 closely the time, in adding the process of covering slag, adding the slag operation personnel can add covering slag in the chamber of crystallizer according to the order of first alar part 1, second alar part 2, web portion 5, the 4th alar part 4 and flap portion 3.At this moment; In the process of measuring covering slag thickness; Operating personnel can be according to measuring the thickness of covering slag with the order of the sequence consensus that adds covering slag,, measures the thickness of covering slag according to the order of the firstth alar part 1, second alar part 2, web portion 5, the 4th alar part 4 and flap portion 3 that is.Can avoid effectively apart from add slag equipment or add the not enough problem of covering slag in the slag operation personnel chamber at a distance through such operation.
According to exemplary embodiment of the present invention; When adding slag equipment or add the slag operation personnel when being positioned at the downside of web portion 5; Promptly; When adding slag equipment or adding slag operation personnel distance flap portion 3 and the 4th alar part 4 than distance first alar parts 1 and second alar part 2 closely the time, in adding the process of covering slag, adding the slag operation personnel can add covering slag in the chamber of crystallizer according to the order of second alar part 2, first alar part 1, web portion 5, flap portion 3 and the 4th alar part 4.At this moment; In the process of measuring covering slag thickness; Operating personnel can be according to measuring the thickness of covering slag with the order of the sequence consensus that adds covering slag,, measures the thickness of covering slag according to the order of second alar part 2, first alar part 1, web portion 5, flap portion 3 and the 4th alar part 4 that is.Can avoid effectively apart from add slag equipment or add the not enough problem of covering slag in the slag operation personnel chamber at a distance through such operation.
According to exemplary embodiment of the present invention, in adding flux shielding slag process, according to spare no effort to, the even principle that adds and add less adds covering slag, and regularly, quantitatively and fixed point ground add covering slag, help controlling suitable covering slag thickness like this.In addition, in the process of measuring covering slag, regularly, fixed point measure covering slag thickness.
Method according to the embodiments of the present invention with near finish shape billet continuous casting machine crystallizer production continuous casting billet; With the THICKNESS CONTROL of covering slag in the scope of 35mm-45mm; Make covering slag give full play to thermal insulating, reduce the molten steel thermal loss, the insulation air prevents the molten steel secondary oxidation, improves the strand lubricant effect, improves the effect that crystallizer conducts heat, absorbs nonmetal inclusion, thereby improve slab quality, reduce production accident.

Claims (10)

1. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer, the chamber of crystallizer comprises four alar parts and web portion, makes the cross section in chamber of crystallizer be H shape, it is characterized in that,
In adding the process of covering slag, covering slag is added the order that slag equipment draws near by distance add respectively in four alar parts and the web portion;
In the process of measuring covering slag thickness, according to measuring the thickness of covering slag with the order of the sequence consensus that adds covering slag.
2. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer as claimed in claim 1 is characterized in that, with the THICKNESS CONTROL of covering slag in the scope of 35mm-45mm.
3. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer as claimed in claim 1; It is characterized in that; Said four alar parts comprise first alar part, second alar part, flap portion and the 4th alar part; First alar part and flap portion are positioned at an end of web portion, and second alar part and the 4th alar part are positioned at the other end of web portion, and first alar part and second alar part are positioned at a side of web portion; Flap portion and the 4th alar part are positioned at the opposite side of web portion, and it is far away apart from adding slag equipment than flap portion and the 4th alar part that first alar part and second alar part distance add slag equipment.
4. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer as claimed in claim 3; It is characterized in that; In adding the process of covering slag, covering slag is added in the chamber of crystallizer according to the order of first alar part, second alar part, web portion, flap portion and the 4th alar part.
5. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer as claimed in claim 3; It is characterized in that; In adding the process of covering slag, covering slag is added in the chamber of crystallizer according to the order of second alar part, first alar part, web portion, the 4th alar part and flap portion.
6. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer as claimed in claim 3; It is characterized in that; In adding the process of covering slag, covering slag is added in the chamber of crystallizer according to the order of first alar part, second alar part, web portion, the 4th alar part and flap portion.
7. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer as claimed in claim 3; It is characterized in that; In adding the process of covering slag, covering slag is added in the chamber of crystallizer according to the order of second alar part, first alar part, web portion, flap portion and the 4th alar part.
8. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer as claimed in claim 1 is characterized in that, adds covering slag according to sparing no effort to, spare the principle that adds and add less.
9. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer as claimed in claim 1 is characterized in that, regularly, quantitatively, fixed point adds covering slag.
10. method of producing continuous casting billet with near finish shape billet continuous casting machine crystallizer as claimed in claim 1 is characterized in that, regularly, one-point measurement covering slag thickness.
CN2012102770810A 2012-08-06 2012-08-06 Method for producing continuous casting slab by crystallizer of near-net-shape beam blank continuous casting machine Pending CN102773426A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014753A (en) * 2014-06-23 2014-09-03 莱芜钢铁集团有限公司 Method for producing continuous casting blanks by using near-net-shape profiled blank continuous casting machine
CN109465413A (en) * 2018-11-12 2019-03-15 莱芜钢铁集团银山型钢有限公司 A kind of non-equilibrium casting beam blank mould covering slag distributing method of single-point

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JPS6012257A (en) * 1983-07-01 1985-01-22 Nippon Steel Corp Mold for continuous casting of beam blank
JPS623852A (en) * 1985-07-01 1987-01-09 Kawasaki Steel Corp Beam blank continuous casting method
JP3089608B2 (en) * 1992-06-22 2000-09-18 川崎製鉄株式会社 Continuous casting method of beam blank
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014753A (en) * 2014-06-23 2014-09-03 莱芜钢铁集团有限公司 Method for producing continuous casting blanks by using near-net-shape profiled blank continuous casting machine
CN104014753B (en) * 2014-06-23 2016-08-24 莱芜钢铁集团有限公司 The method producing continuous casting billet with near finish shape billet continuous casting machine
CN109465413A (en) * 2018-11-12 2019-03-15 莱芜钢铁集团银山型钢有限公司 A kind of non-equilibrium casting beam blank mould covering slag distributing method of single-point

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Application publication date: 20121114