CN101332496A - Method for plugging started head - Google Patents
Method for plugging started head Download PDFInfo
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- CN101332496A CN101332496A CNA2008100483529A CN200810048352A CN101332496A CN 101332496 A CN101332496 A CN 101332496A CN A2008100483529 A CNA2008100483529 A CN A2008100483529A CN 200810048352 A CN200810048352 A CN 200810048352A CN 101332496 A CN101332496 A CN 101332496A
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- dummy bar
- bar head
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Abstract
The invention discloses a method for blocking a dummy bar head; the method mainly adopts a rail head and a cold burden to block the dummy bar head according to the shape of a dovetail groove on the dummy bar head. The method has the advantages that the requirements for an operator are lower, the method is easy to be mastered and can solve the problems of casting failure caused by nonproficiency of operators or minor failure of equipment. By adopting the method, except for the casting failure caused by objective reasons resulting from liquid steel components and temperature, the method can not cause casting failure in other cases, can especially overcome the abnormal phenomenon such as untight closing of a stopper and the like and ensure successful casting. The method can effectively ensure the smooth overall continuous casting production, increase the operating rate of a casting machine and reduce production cost.
Description
Technical field
The present invention relates to a kind of continuous casting production technology, specifically a kind of method of plugging dummy bar head.
Background technology
Before proposing the present invention, those skilled in the art and operator are fully aware of, and plugging dummy bar head is a crucial operating procedure during continuous casting is produced, if miss the main points or use material incorrect, easy open to water pull or production accident such as bleed-out.At present, the method for plugging dummy bar head has much on square billet, and for example: ironcasting joins that rigid dummy bar, cold burden basket are joined flexible dummy bar, the cold burden piece is joined flexible dummy bar etc.At flexible dummy bar, flexible dummy bar joined by the cold burden basket and the cold burden piece is joined these two kinds of methods of flexible dummy bar having relatively high expectations to operating personnel, must strictly control the lifting time, and stopper operating mechanism, vibratory equipment etc. can not have fault, otherwise will cause inadequately to open and water bleed-out or because of waits for too long because of the lifting time, be freezed to death to cause opening by cold steel and water failure in the mouth of a river.Water failure because of opening, not only cause molten steel to melt down and waste product, also make to produce and interrupt, thereby cause caster work rate to reduce, production capacity can not be brought into play, and product cost rises.Chinese patent application CN01254988 discloses a kind of ingot dummy bar head that takes off automatically, by improving dummy bar head body, dovetail groove effective width and angle of sides, cancels the nose shape reinforcement in the middle of it, and the intensity of strand is improved, and effectively avoids opening watering bleed-out.But this method need change the structure of dummy bar head itself, must make new dummy bar head again and use, and has improved production cost.
Summary of the invention
The objective of the invention is provides a kind of method of the plugging dummy bar head of implementing in order to overcome the weak point of above-mentioned background technology on the existing equipment basis.This method is lower to operator's requirement, grasps easily, can solve because of the operator unskilled or equipment glitch etc. and cause the problem of watering failure of opening.Use this kind method, the odjective cause that causes except invar water constituent and temperature causes opening waters the failure, all can not go wrong under all the other situations, particularly also can overcome for anomalies such as stopper fit badly, guarantees to open to water successfully.
To achieve these goals, the method for a kind of plugging dummy bar head provided by the invention may further comprise the steps successively:
1) with the slit between paper string plugging dummy bar head and the crystallizer;
2) at the shop, dovetail groove bottom of dummy bar head one deck heat-insulating cloth;
3) center position at the dovetail groove cell body inserts one section rail head;
4) comprise dovetail groove inner evenly shop one deck iron filings or sand on the dummy bar head surface;
5) around rail head, be radial evenly distributed cold burden.
In technique scheme, described one section its length of rail head is 100mm.
In technique scheme, described cold burden can use spring, steel billet, thin rod iron or thin band steel.
Easy to operate, reliability advantages of higher that the method for a kind of plugging dummy bar head of the present invention has, especially utilizing the rail head of suitable dimension to add cold burden according to the shape of dovetail groove on the dummy bar head joins flexible dummy bar and comes plugging dummy bar head, open and water the back molten steel and be easy to enter in the dovetail groove and the gap location of rail head and cold burden, make it very quick setting together, cold base head that solidifies of formation, and base head fast has higher intensity and hot base can be pulled out crystallizer up to the straightening zone.In addition, utilize the special structure of rail head to reduce and split the requirement of watering the lifting time and opening the rod size, therefore the operator is easy to grasp this method, make to get rid of to open after the objective factors such as molten steel composition and temperature and water success rate and reach 100%, guarantee the direct motion that sequence casting is produced effectively, improve the operating rate of casting machine, reduce production costs.
Description of drawings
Fig. 1 is the embodiment profile of the method for a kind of plugging dummy bar head of the present invention.
Fig. 2 is the embodiment vertical view of the method for a kind of plugging dummy bar head of the present invention.
Wherein: 1 is dummy bar head, and 2 is the dovetail groove on the dummy bar head, and 3 is rail head, and 4 is heat-insulating cloth, and 5 is iron filings, and 6 is cold burden, and 7 is paper string.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, 2, a kind of method of plugging dummy bar head, this method may further comprise the steps successively:
1) with the slit between paper string plugging dummy bar head and the crystallizer;
2) at the shop, dovetail groove bottom of dummy bar head one deck heat-insulating cloth;
3) center position at the dovetail groove cell body inserts one section rail head;
4) comprise the inner evenly shop of dovetail groove one deck iron filings on the dummy bar head surface;
5) around rail head, be the long thin band steel of radial evenly distributed about 200mm.
Said method step 2) heat-insulating cloth described in, its effect are the convenient dummy bar heads that separates during for deingot.
Rail head described in the said method step 3) can cut down one section from waste and old steel rail, the flange of rail is done the finishing back slightly directly use.Its cross-sectional sizes difference of the rail of different model, selected rail head cross-sectional sizes should be suitable mutually with the cross section of dovetail groove, the general rail head flange of rail width that guarantees accounts for 80% of dovetail groove bottom width, because the model of China's rail is indicated by its feather weight, therefore only need select the rail of suitable feather weight to get final product according to the shape of dovetail groove, for example, section is 200 * 200mm
2Radius is the rail head that the dummy bar head of the circular-arc type continuous casting machine of 10m is just joined the 43Kg level, and section is 280 * 380mm
2Radius is the rail head that the dummy bar head of the circular-arc type continuous casting machine of 12m is just joined the 118Kg level.For economical with materials and guarantee that implementation result cuts rail head length and is approximately 100mm.Special structure comes blocking dummy ingot can reach effect preferably to utilize rail head, its bottom is inserted in the tensile strength that has improved cold base head in the dovetail groove, the effect of shock plate is played in the direct impact that its head is subjected to molten steel, and web of the rail portion just in time adapts to the cold base head that molten steel is frozen into rail head, cold burden and dovetail groove an integral body.
Can also change iron filings into sand etc. in the said method step 4).
Cold burden has multiplely in the said method step 5), can also select for use: spring, steel billet, thin rod iron etc.
Claims (3)
1. the method for a plugging dummy bar head is characterized in that this method may further comprise the steps successively:
(1) with the slit between paper string plugging dummy bar head and the crystallizer;
(2) at the shop, dovetail groove bottom of dummy bar head one deck heat-insulating cloth;
(3) center position at the dovetail groove cell body inserts one section rail head;
(4) comprise dovetail groove inner evenly shop one deck iron filings or sand on the dummy bar head surface;
(5) around rail head, be radial evenly distributed cold burden.
2. the method for a kind of plugging dummy bar head according to claim 1, it is characterized in that: one section its length of rail head described in the step (3) is 100mm.
3. the method for a kind of plugging dummy bar head according to claim 1 is characterized in that: the cold burden described in the step (5) can use spring, steel billet, thin rod iron or thin band steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100483529A CN101332496A (en) | 2008-07-10 | 2008-07-10 | Method for plugging started head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100483529A CN101332496A (en) | 2008-07-10 | 2008-07-10 | Method for plugging started head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101332496A true CN101332496A (en) | 2008-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100483529A Pending CN101332496A (en) | 2008-07-10 | 2008-07-10 | Method for plugging started head |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102380590A (en) * | 2011-11-14 | 2012-03-21 | 振石集团东方特钢股份有限公司 | Method for pouring plate blank stainless steel |
| CN103357829A (en) * | 2013-07-15 | 2013-10-23 | 芜湖新兴铸管有限责任公司 | Placement structure for casting cold material of medium and large continuous casting billet sections and placement method therefor |
| CN105195696A (en) * | 2015-11-06 | 2015-12-30 | 内蒙古包钢钢联股份有限公司 | Dummy ingot sealing method capable of preventing casting leakage of shaped blank |
| CN110181008A (en) * | 2019-06-06 | 2019-08-30 | 唐山钢铁集团有限责任公司 | A kind of middle sheet billet continuous casting standby host method |
| 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 |
| CN113477895A (en) * | 2021-07-08 | 2021-10-08 | 攀钢集团攀枝花钢钒有限公司 | Casting starting device for small continuous casting square billet crystallizer and construction method |
-
2008
- 2008-07-10 CN CNA2008100483529A patent/CN101332496A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102380590A (en) * | 2011-11-14 | 2012-03-21 | 振石集团东方特钢股份有限公司 | Method for pouring plate blank stainless steel |
| CN102380590B (en) * | 2011-11-14 | 2013-06-26 | 振石集团东方特钢股份有限公司 | Method for pouring plate blank stainless steel |
| CN103357829A (en) * | 2013-07-15 | 2013-10-23 | 芜湖新兴铸管有限责任公司 | Placement structure for casting cold material of medium and large continuous casting billet sections and placement method therefor |
| CN103357829B (en) * | 2013-07-15 | 2015-06-17 | 芜湖新兴铸管有限责任公司 | Placement structure for casting cold material of medium and large continuous casting billet sections and placement method therefor |
| CN105195696A (en) * | 2015-11-06 | 2015-12-30 | 内蒙古包钢钢联股份有限公司 | Dummy ingot sealing method capable of preventing casting leakage of shaped blank |
| CN110181008A (en) * | 2019-06-06 | 2019-08-30 | 唐山钢铁集团有限责任公司 | A kind of middle sheet billet continuous casting standby host method |
| CN110181008B (en) * | 2019-06-06 | 2021-04-06 | 唐山钢铁集团有限责任公司 | Method for preparing continuous casting machine for medium plate blank |
| 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 |
| 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 |
| CN113477895A (en) * | 2021-07-08 | 2021-10-08 | 攀钢集团攀枝花钢钒有限公司 | Casting starting device for small continuous casting square billet crystallizer and construction method |
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Open date: 20081231 |