CN105689663A - Dummy bar head for super-thick-section vertical slab continuous caster - Google Patents
Dummy bar head for super-thick-section vertical slab continuous caster Download PDFInfo
- Publication number
- CN105689663A CN105689663A CN201610272358.9A CN201610272358A CN105689663A CN 105689663 A CN105689663 A CN 105689663A CN 201610272358 A CN201610272358 A CN 201610272358A CN 105689663 A CN105689663 A CN 105689663A
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- Prior art keywords
- dummy bar
- bar head
- head
- super
- section vertical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/08—Accessories for starting the casting procedure
- B22D11/081—Starter bars
- B22D11/083—Starter bar head; Means for connecting or detaching starter bars and ingots
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
A dummy bar head for a super-thick-section vertical slab continuous caster comprises a dummy bar head body and nut components, wherein an end surface of the dummy bar head body is L-shaped; the vertical surface of the end surface is connected with a blank head via the nut components; a groove with the opening facing upwards is formed in the horizontal surface of the end surface, so as to ensure storage of cold steel during dummy bar head stuffing and blank head cooling at the start of steel pouring, and ensure that the blank head is easy to fall out. Aimed at production of super-thick-section special steel die-casting, the dummy bar head is structurally designed to be equipment capable of adapting to sections of different specifications, so as to adapt to new vertical continuous casting production technology, and not only ensure symmetry of the metal macroscopic structure of a casting blank and product quality, but also improve production efficiency.
Description
Technical field
The invention belongs to metallurgical technology field, relate to super thick section vertical slab caster equipment, particularly to a kind of super thick section Vertical Slab Caster dummy bar head。
Background technology
At present in the tissue of the steel casting of super thick section produces, it is generally adopted the form of molding, die casting process can not meet the demand of production in enormous quantities, and die casting process is for the steel casting of super thick section, easily produce the casting flaws such as being mingled with of cast-internal, shrinkage cavity, pore, and the qualification rate of finished product is relatively low。
In order to overcome these problems, introduce super thick section vertical casting machine design concept, and in continuous casting installation for casting, dummy bar head is the capital equipment of continuous casting, its effect is used to filling crystalliser feet, and watering after steel starts, make the molten steel solidification pouring in crystallizer at first and be connected with dummy bar head, then strand is continuously pulled out the visual plant of conticaster by the roller that drives by Secondary Cooling Zone of Continuous Caster deflector roll。But for super thick section vertical casting machine, existing dummy bar head cannot meet and adapt to following technological requirement:
1, the production of different section。
2, steel is watered when starting, the connection of the initial strand grown up and dummy bar head。
3, the separating of dummy bar head and continuous casting billet。
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of super thick section Vertical Slab Caster dummy bar head, adapting to each different section requirement, thus improving continuous casting manufacturing technique。
To achieve these goals, the technical solution used in the present invention is:
A kind of super thick section Vertical Slab Caster dummy bar head, including dummy bar head body 2 and nut assembly 3, the end face of dummy bar head body 2 is L-shaped, wherein vertical plane is connected with base head 1 by nut assembly 3, being provided with the groove 4 of opening upwards on horizontal plane, during to guarantee filling dummy bar head, cold steel deposits and waters the cooling of base head when steel starts。
Described groove 4 is single cavity or double flute, and trough rim is along having ledge in groove。
Two sides of described dummy bar head body 2 are each provided with one and adjust backing plate 5。
The upper periphery of described dummy bar head body 2 all adopts the structural design of big chamfering。
Compared with prior art, the present invention is directed to the molding of large section special steel to produce, dummy bar head structure is designed to be able to adapt to the equipment of different size section, adapts to new vertical continuous casting production technology, both can guarantee that the quality of the symmetry of strand metal macrostructure and product, production efficiency can have been improved again。
Specifically:
(1) structural design of big chamfering is adopted to can guarantee that in the crystallizer that dummy bar head can smoothly enter vertical casting machine。
(2) filling after dummy bar head entrance crystallizer is guaranteed。
(3) after slab cuts off, owing to dummy bar head adopts form of grooves design, base head forms a hook with dummy bar head and is connected, bolt assembly on dummy bar head then becomes as a whole when molten steel injects crystallizer with molten steel solidification, namely a part for slab head is become, so when slab is after flame cutting machine, can ensure that base head, dummy bar head connection and with dummy bar output together。
(4) after dummy bar off-line, base head, dummy bar head can separate smoothly, then be the nut by unclamping bolt assembly, and cut off after bolt with cutting machine, and strand head under gravity, separates smoothly around A point is rotational automatic。
(5) adjustment of dummy bar head width, then be by the thickness adjusting backing plate group in dummy bar head both sides, it is achieved the conversion of width。
Owing to adopting the technique of casting continuously into, molding is changed continuous casting, coordinate the cooling system of cooling water, under the support and traction of dummy bar head of the present invention, the production of efficient super thick section steel-casting can be completed。
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention。
Fig. 2 is another angle schematic diagram of present configuration。
Fig. 3 is dummy bar head of the present invention and base head connection status schematic diagram。
Fig. 4 is dummy bar head of the present invention and base head released state schematic diagram。
Detailed description of the invention
Embodiments of the present invention are described in detail below in conjunction with accompanying drawing。
As depicted in figs. 1 and 2, a kind of super thick section Vertical Slab Caster dummy bar head, including dummy bar head body 2 and nut assembly 3, nut assembly 3 includes bolt and nut。The end face of dummy bar head body 2 is L-shaped, and wherein vertical plane is connected with base head 1 by nut assembly 3, and horizontal plane is provided with the groove 4 of opening upwards。Groove 4 can be single cavity or double flute, it is also possible to for " pawl " shape, trough rim is along having ledge in groove。Two sides of dummy bar head body 2 are each provided with one and adjust backing plate 5, and composition adjusts backing plate group。
As shown in Figure 3 and Figure 4, when the design of groove 4 can ensure that filling dummy bar head cold steel deposit and water the cooling of base head when steel starts, and by unclamping nut, cut off bolt and can realize separating of base head 1 and dummy bar head；The change of section width can be realized by adjusting backing plate group。Thus adapting to the process characteristic of vertical casting machine。
Specific design thinking is as follows:
Basic design parameters:
Strand parameter: thickness: big cross section (as: 500,600,700mm etc.)
Width: big cross section (as: 1100,1500mm etc.)
The design of dummy bar head
The design of dummy bar head mainly consider following some:
1, dummy bar head enters the filling of crystallizer and dummy bar head
According to continuous casting process, after dummy bar head enters the crystallizer predeterminated position of vertical casting machine, steel to be watered and prepare filling dummy bar head。Therefore the structural design of dummy bar head, first has to consider that dummy bar head can smoothly enter crystallizer, and arrives presetting position, therefore in the upper end of dummy bar head, periphery adopts the structural design of big chamfering；Secondly after arriving the position that dummy bar head is presetting, can guarantee that on dummy bar head, deposit enough cold steel and casting start after the connection of base head and dummy bar head, therefore, dummy bar head body 2 designs groove 4 or " pawl " shape structure, after such dummy bar head enters crystallizer, groove 4 forms " bucket " type space of an access molten steel with crystallizer, cold steel is laid in the bottom (namely in groove 4) in " bucket " type space, namely depositing of the filling cold steel of dummy bar head can be met, ensure the cooling of base head when casting starts, can guarantee that again starting to base head to cut off dummy bar head in during this period of time in casting can draw (holder) strand by two cold-zones simultaneously。
2, after base head cuts off, base head, dummy bar head connection and with dummy bar output together
Watering after steel starts, strand arrives appointment (cutting) position under " traction " of dummy bar head, and flame cutting machine is started working。After base head is cut-off, dummy bar (head) continues downwards with base head, according to technological requirement, base head 1, dummy bar head, dummy bar are made as a whole arrival specific bit and are postponed, the related base head 1 of dummy bar is tumbled together, at this moment it has to be considered that in the process tumbled, base head 1 can not come off, otherwise by production development accident。It is thus desirable to increase a set of connecting bolt assembly。So watering after steel starts, injecting the high-temperature molten steel in crystallizer with after threaded bolt contacts, bolt head is by fusing or is embedded in base head, and bolt is fixed in dummy bar head by nut, namely be equivalent to base head and be unified into an entirety by bolt and dummy bar head (bar), as shown in Figure 3。Certainly, the design of dummy bar head body 2, must consider that the working place of bolt assembly 3 and dummy bar head to have enough strength and stiffness。
3, base head, dummy bar head separate
According to technology arrangement, after dummy bar hangs rear portion ejection roller way and is transported to the deposit position specified together with base head 1, unclamp nut, cut off bolt, as it is shown on figure 3, base head 1 will under the effect of deadweight, certain " A " point contacted with dummy bar head around base head 1 rotates, base head Automatic-falling, as shown in Figure 4。Thus realizing the separation of base head 1 and dummy bar head, the design of certain dummy bar head body 2 upper bolt hole also to coordinate separating of base head 1 and dummy bar head。According further to the continuous casting billet of different section, bolt, nut assembly can arrange different quantity, it is ensured that continuous casting billet is connected reliably with dummy bar head and is smoothly detached。
4, the adjustment of dummy bar head width
The adjustment of dummy bar head width, then be by the thickness adjusting backing plate group in dummy bar head both sides, it is achieved the conversion of width。
Claims (5)
1. a super thick section Vertical Slab Caster dummy bar head, including dummy bar head body (2) and nut assembly (3), it is characterized in that, the end face of dummy bar head body (2) is L-shaped, wherein vertical plane is connected with base head (1) by nut assembly (3), and horizontal plane is provided with the groove (4) of opening upwards。
2. super thick section Vertical Slab Caster dummy bar head according to claim 1, it is characterised in that described groove (4) is single cavity or double flute。
3. super thick section Vertical Slab Caster dummy bar head according to claim 1, it is characterised in that the trough rim of described groove (4) is along having ledge in groove。
4. super thick section Vertical Slab Caster dummy bar head according to claim 1, it is characterised in that two sides of described dummy bar head body (2) are each provided with and adjust backing plate (5)。
5. super thick section Vertical Slab Caster dummy bar head according to claim 1, it is characterised in that the upper periphery of described dummy bar head body (2) all adopts the structural design of big chamfering。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272358.9A CN105689663A (en) | 2016-04-27 | 2016-04-27 | Dummy bar head for super-thick-section vertical slab continuous caster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272358.9A CN105689663A (en) | 2016-04-27 | 2016-04-27 | Dummy bar head for super-thick-section vertical slab continuous caster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105689663A true CN105689663A (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610272358.9A Pending CN105689663A (en) | 2016-04-27 | 2016-04-27 | Dummy bar head for super-thick-section vertical slab continuous caster |
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| Country | Link |
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| CN (1) | CN105689663A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655355A (en) * | 2018-06-20 | 2018-10-16 | 山东钢铁股份有限公司 | The conticaster dual-purpose dummy bar head of right angle chamfering |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10286656A (en) * | 1997-04-16 | 1998-10-27 | Kawasaki Steel Corp | Continuous casting method for hot strength steel and dummy barhead used for the method |
| CN2497908Y (en) * | 2001-07-15 | 2002-07-03 | 戴光华 | Square blank casting hook image taking head |
| JP2006192488A (en) * | 2005-01-17 | 2006-07-27 | Jfe Steel Kk | Continuous casting method for steel |
| CN203679200U (en) * | 2013-12-05 | 2014-07-02 | 天津钢铁集团有限公司 | Dummy bar head connecting piece of small round billet conticaster |
| CN105397046A (en) * | 2015-12-03 | 2016-03-16 | 中冶连铸技术工程有限责任公司 | Round billet dummy ingot device |
| CN205599889U (en) * | 2016-04-27 | 2016-09-28 | 中国重型机械研究院股份公司 | Vertical slab caster dummy ingot head of super heavv section |
-
2016
- 2016-04-27 CN CN201610272358.9A patent/CN105689663A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10286656A (en) * | 1997-04-16 | 1998-10-27 | Kawasaki Steel Corp | Continuous casting method for hot strength steel and dummy barhead used for the method |
| CN2497908Y (en) * | 2001-07-15 | 2002-07-03 | 戴光华 | Square blank casting hook image taking head |
| JP2006192488A (en) * | 2005-01-17 | 2006-07-27 | Jfe Steel Kk | Continuous casting method for steel |
| CN203679200U (en) * | 2013-12-05 | 2014-07-02 | 天津钢铁集团有限公司 | Dummy bar head connecting piece of small round billet conticaster |
| CN105397046A (en) * | 2015-12-03 | 2016-03-16 | 中冶连铸技术工程有限责任公司 | Round billet dummy ingot device |
| CN205599889U (en) * | 2016-04-27 | 2016-09-28 | 中国重型机械研究院股份公司 | Vertical slab caster dummy ingot head of super heavv section |
Non-Patent Citations (1)
| Title |
|---|
| 杨超武等: "超厚断面立式连铸机引锭杆设计思路", 《2013连铸装备技术的科技进步与精细化学术研讨会论文集》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655355A (en) * | 2018-06-20 | 2018-10-16 | 山东钢铁股份有限公司 | The conticaster dual-purpose dummy bar head of right angle chamfering |
| CN108655355B (en) * | 2018-06-20 | 2023-11-10 | 山东钢铁股份有限公司 | Right-angle chamfering dual-purpose dummy ingot head for continuous casting machine |
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Application publication date: 20160622 |