CN104226946A - Blocking method of round billet continuous casting dummy bar head - Google Patents

Blocking method of round billet continuous casting dummy bar head Download PDF

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Publication number
CN104226946A
CN104226946A CN201410515879.3A CN201410515879A CN104226946A CN 104226946 A CN104226946 A CN 104226946A CN 201410515879 A CN201410515879 A CN 201410515879A CN 104226946 A CN104226946 A CN 104226946A
Authority
CN
China
Prior art keywords
bar head
dummy bar
crystallizer
continuous casting
blocking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410515879.3A
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Chinese (zh)
Inventor
付长亮
李炳一
马立军
张霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Iron and Steel Group Co Ltd
Original Assignee
Tianjin Iron and Steel Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Iron and Steel Group Co Ltd filed Critical Tianjin Iron and Steel Group Co Ltd
Priority to CN201410515879.3A priority Critical patent/CN104226946A/en
Publication of CN104226946A publication Critical patent/CN104226946A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a blocking method of a round billet continuous casting dummy bar head. The method includes the following steps of firstly, selecting a round billet connecting piece, and fixing the round billet connecting piece to one end of the dummy bar head through a bolt; secondly, sending the dummy bar head into the space 50 mm to 70 mm away from the lower end of a crystallizer; thirdly, sealing the gap between the dummy bar head and the crystallizer through ceramic fiber; fourthly, placing a protecting ring above the dummy bar head; fifthly, scattering an iron chip layer into the upper end of the dummy bar head; sixthly, obliquely placing a cold material bar into the protecting ring. According to the blocking method, by directly placing the prefabricated protecting ring above the dummy bar head, smooth casting can be ensured, and bleed-out can be avoided; meanwhile, the cold material bar and the inner wall of the crystallizer are separated through the protecting ring, and therefore the inner wall of the crystallizer is prevented from being scratched, the service life of the crystallizer is greatly prolonged, the risk that the surface of the casting billet is damaged when the inner surface of the crystallizer is scratched is lowered, continuous casting and smooth producing are effectively ensured, and economic benefits are improved.

Description

A kind of method for blocking of round billet continuous casting dummy bar head
Technical field
The invention belongs to continuous-casting art, a kind of method for blocking of round billet continuous casting dummy bar head is provided especially.
Background technology
In casting process, rigid leading ingot head shutoff crystallizer is that continuous casting opens before watering key operation step, and it is related to continuous casting success and opens and water; Meanwhile, the wear condition of crystallizer lower end directly affects the surface quality of strand, reduces crystallizer then can increase equipment cost service life because of wearing and tearing.At present, following way taked usually by round billet continuous casting rigid leading ingot head shutoff crystallizer: utilize bolt to be fixed on dummy bar head by connector, afterwards by paving asbestos etc. by crystallizer lower seal, and the molten steel solidification of liquid state is made it around bolt combine together with connector.But, these methods are not all considered that the end of the charge bar when letting cool charge bar to crystallizer lower end is probably drawn and are rubbed internal surface of crystallizer, accelerate the wearing and tearing of crystallizer, affect the service life of crystallizer, the crystallizer that scratching is serious probably causes casting billet surface to crack when continuing use, affects product quality.
Summary of the invention
The present invention provides a kind of method for blocking of round billet continuous casting dummy bar head for solving in known technology the technical problem that exists, and can ensure that continuous casting is opened smoothly waters, and can reduce again the wearing and tearing of cold burden rod to internal surface of crystallizer.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
A method for blocking for round billet continuous casting dummy bar head, comprises the steps:
1) choose round base connector, utilize bolt to be fixed in dummy bar head end;
2) dummy bar head is sent to crystallizer lower end 50-70mm;
3) with ceramic fibre by the gap sealing between dummy bar head and crystallizer;
4) guard ring is placed in above dummy bar head;
5) iron filings layer is sprinkled in dummy bar head upper end;
6) by cold burden rod slant setting in guard ring.
The height of described cold burden rod is not less than the height of guard ring.
The thickness of described iron filings layer is 1.4-1.6cm.
The advantage that the present invention has and good effect are: the present invention is directly placed in above dummy bar head by shifting to an earlier date ready-made guard ring, can ensure to open smoothly and water, avoid bleed-out, simultaneously because cold burden rod separates with crystallizer inwall by guard ring, crystallizer inwall is avoided to be scratched, substantially increase the service life of crystallizer, reduce crystallizer produces surface defect of bloom risk because of inner surface scratch wound, thus effectively ensure that continuous casting is produced smoothly, improves economic benefit.
Accompanying drawing explanation
Fig. 1 is the inventive method perspective view.
In Fig. 1,1. crystallizer, 2. guard ring, 3. cold burden rod, 4. bolt, 5. iron filings layer, 6. connector.
Detailed description of the invention:
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
A method for blocking for round billet continuous casting dummy bar head, comprises the steps:
1) choose round base connector 6, utilize bolt 4 to be fixed in dummy bar head end;
2) dummy bar head is sent to crystallizer (copper pipe) 1 lower end 50-70mm;
3) with ceramic fibre by the gap sealing between dummy bar head and crystallizer;
4) guard ring 2 is placed in above dummy bar head;
5) iron filings layer 5 is sprinkled in dummy bar head upper end;
6) by cold burden rod 3 slant settings in guard ring 2.
In the present embodiment, the height after guard ring 2 welding support is 15cm, and the length of cold burden rod 3 is 17cm-18cm, and cold burden rod 3 can not lower than the height of guard ring 2 under putting into the rear tilting situation of guard ring 2.
In the present embodiment, the thickness of iron filings layer 5 is 1.4-1.6cm, to realize good auxiliary seal.
In the present embodiment, directly be placed in above dummy bar head by ready-made guard ring 2 will be shifted to an earlier date, can ensure to open smoothly and water, avoid bleed-out, simultaneously because cold burden rod separates with crystallizer inwall by guard ring 2, avoid crystallizer inwall to be scratched, substantially increase the service life of crystallizer, reduce crystallizer produces surface defect of bloom risk because of inner surface scratch wound, thus effectively ensure that continuous casting is produced smoothly, improves economic benefit.
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, and those of ordinary skill in the field should be appreciated that and still can modify to the detailed description of the invention of invention or portion of techniques feature be carried out to equivalent replacement; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the technology of request of the present invention protection.

Claims (3)

1. a method for blocking for round billet continuous casting dummy bar head, is characterized in that, comprises the steps:
1) choose round base connector (6), utilize bolt (4) to be fixed in dummy bar head end;
2) dummy bar head is sent to crystallizer (1) lower end 50-70mm;
3) with ceramic fibre by the gap sealing between dummy bar head and crystallizer (1);
4) guard ring (2) is placed in above dummy bar head;
5) iron filings layer (5) is sprinkled in dummy bar head upper end;
6) by cold burden rod (3) slant setting in guard ring (2).
2. the method for blocking of a kind of round billet continuous casting dummy bar head according to claim 1, is characterized in that, the height of described cold burden rod (3) is not less than the height of guard ring (2).
3. the method for blocking of a kind of round billet continuous casting dummy bar head according to claim 1, is characterized in that, the thickness of described iron filings layer (5) is 1.4-1.6cm.
CN201410515879.3A 2014-09-29 2014-09-29 Blocking method of round billet continuous casting dummy bar head Pending CN104226946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410515879.3A CN104226946A (en) 2014-09-29 2014-09-29 Blocking method of round billet continuous casting dummy bar head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410515879.3A CN104226946A (en) 2014-09-29 2014-09-29 Blocking method of round billet continuous casting dummy bar head

Publications (1)

Publication Number Publication Date
CN104226946A true CN104226946A (en) 2014-12-24

Family

ID=52216348

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410515879.3A Pending CN104226946A (en) 2014-09-29 2014-09-29 Blocking method of round billet continuous casting dummy bar head

Country Status (1)

Country Link
CN (1) CN104226946A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110523944A (en) * 2018-07-20 2019-12-03 广东韶钢松山股份有限公司 A kind of billet caster method for pouring and device
CN111036872A (en) * 2019-12-26 2020-04-21 山东莱钢永锋钢铁有限公司 Manufacturing method of startup cold material of continuous casting machine
CN111054895A (en) * 2019-12-26 2020-04-24 河钢股份有限公司承德分公司 Casting method of continuous casting machine
CN111347017A (en) * 2020-04-22 2020-06-30 山东钢铁股份有限公司 Method for marking gliding of dummy bar
CN111482563A (en) * 2020-03-24 2020-08-04 河北津西钢铁集团股份有限公司 Continuous casting production method of super-large section special-shaped blank
CN112355263A (en) * 2020-10-14 2021-02-12 刘珍 Semi-solid forming device for aluminum alloy processing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0919745A (en) * 1995-06-30 1997-01-21 Nippon Steel Corp Dummy bar head sealing method in continuous casting method
CN101745621A (en) * 2008-12-12 2010-06-23 鞍钢股份有限公司 Method for plugging dummy bar head of slab caster
CN101890487A (en) * 2010-07-10 2010-11-24 山西太钢不锈钢股份有限公司 Method for plugging dummy bar head
CN201807709U (en) * 2010-07-29 2011-04-27 南通宝钢钢铁有限公司 Crystallizer copper pipe protector of continuous casting machine
CN102847895A (en) * 2012-09-17 2013-01-02 中天钢铁集团有限公司 Ingot guide device for steelmaking continuous casting technique and ingot guide method thereof
CN103357830A (en) * 2013-07-23 2013-10-23 衡阳华菱钢管有限公司 Method for continuous casting by using continuous casting dummy bar assembly and continuous casting dummy bar assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0919745A (en) * 1995-06-30 1997-01-21 Nippon Steel Corp Dummy bar head sealing method in continuous casting method
CN101745621A (en) * 2008-12-12 2010-06-23 鞍钢股份有限公司 Method for plugging dummy bar head of slab caster
CN101890487A (en) * 2010-07-10 2010-11-24 山西太钢不锈钢股份有限公司 Method for plugging dummy bar head
CN201807709U (en) * 2010-07-29 2011-04-27 南通宝钢钢铁有限公司 Crystallizer copper pipe protector of continuous casting machine
CN102847895A (en) * 2012-09-17 2013-01-02 中天钢铁集团有限公司 Ingot guide device for steelmaking continuous casting technique and ingot guide method thereof
CN103357830A (en) * 2013-07-23 2013-10-23 衡阳华菱钢管有限公司 Method for continuous casting by using continuous casting dummy bar assembly and continuous casting dummy bar assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110523944A (en) * 2018-07-20 2019-12-03 广东韶钢松山股份有限公司 A kind of billet caster method for pouring and device
CN110523944B (en) * 2018-07-20 2021-06-01 广东韶钢松山股份有限公司 Casting method and device for billet continuous casting machine
CN111036872A (en) * 2019-12-26 2020-04-21 山东莱钢永锋钢铁有限公司 Manufacturing method of startup cold material of continuous casting machine
CN111054895A (en) * 2019-12-26 2020-04-24 河钢股份有限公司承德分公司 Casting method of continuous casting machine
CN111054895B (en) * 2019-12-26 2021-10-22 河钢股份有限公司承德分公司 Casting method of continuous casting machine
CN111482563A (en) * 2020-03-24 2020-08-04 河北津西钢铁集团股份有限公司 Continuous casting production method of super-large section special-shaped blank
CN111347017A (en) * 2020-04-22 2020-06-30 山东钢铁股份有限公司 Method for marking gliding of dummy bar
CN112355263A (en) * 2020-10-14 2021-02-12 刘珍 Semi-solid forming device for aluminum alloy processing

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Application publication date: 20141224

RJ01 Rejection of invention patent application after publication