CN105728677B - A kind of super thick section Vertical Slab Caster dummy bar - Google Patents
A kind of super thick section Vertical Slab Caster dummy bar Download PDFInfo
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- CN105728677B CN105728677B CN201610270985.9A CN201610270985A CN105728677B CN 105728677 B CN105728677 B CN 105728677B CN 201610270985 A CN201610270985 A CN 201610270985A CN 105728677 B CN105728677 B CN 105728677B
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- Prior art keywords
- chain link
- dummy bar
- bar head
- head
- tail end
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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 kind of super thick section Vertical Slab Caster dummy bar, including dummy bar head, dummy bar head is made of one connecting-rod body of axis pin, the body of rod bar main body and the liner plate outside bar main body, and the bar main body is sequentially connected by multiple chain links by axis pin two to be formed；Chain link includes chain link one, chain link two and chain link three, wherein, there is recess in one front end of chain link, it is connected together with the plush copper of dummy ingot tail end, the front end of chain link two is L-shaped, coordinate with the L-shaped block of one tail end of chain link, the front end of chain link three is L-shaped, coordinate with the L-shaped block of two tail end of chain link, so that between two front end of chain link and one tail end of chain link, and between three front end of two tail end of chain link and chain link, Small-angle Rotation can be done around corresponding axis pin two, dummy bar of the present invention is designed to approximate rigid structure, to meet each different section requirement, the characteristics of adapting to vertical casting machine.
Description
Technical field
The invention belongs to metallurgical technology fields, are related to super thick section vertical slab caster equipment, more particularly to a kind of super thick
Section Vertical Slab Caster dummy bar.
Background technology
At present in the production of the tissue of the steel casting of super thick section, the general form using molding, but die casting process is not
Can meet the needs of mass production, and die casting process easily generates casting for the extraordinary steel casting of super thick section
It is internal be mingled with, shrinkage cavity, the casting flaws such as stomata, and the qualification rate of finished product is relatively low.
In order to overcome the problems, such as these, introduction super thick section vertical casting machine design concept, and in continuous casting installation for casting, dummy bar
It is the capital equipment of super thick section vertical continuous casting production line, use is for filling out on super thick section Vertical Slab Caster
Crystalliser feet is filled in, makes the molten steel solidification poured at first in crystallizer and is connected with dummy bar head, then led by two cold-zones
Strand is continuously pulled out the important equipment of conticaster by the driven roller of roller.Existing dummy bar is single bar structure,
It can not adapt to each different section requirement.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of super thick section vertical slab companies
Casting machine dummy bar is designed to approximate rigid structure, to meet each different section requirement, adapts to the spy of vertical casting machine
Point.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of super thick section Vertical Slab Caster dummy bar, including dummy bar head 1, dummy bar head 1 passes through one 2 connecting rod of axis pin
Body, liner plate 5 of the body of rod by bar main body and outside bar main body form, and the bar main body passes through axis pin 24 by multiple chain links
It is sequentially connected composition.
The chain link includes chain link 1, chain link 26 and chain link 37, wherein, there is recess in one 3 front end of chain link, with dummy bar head 1
The plush copper of tail end is connected together, and the front end of chain link 26 is L-shaped, is coordinated with the L-shaped block of one 3 tail end of chain link, before chain link 37
Hold as L-shaped, coordinate with the L-shaped block of 26 tail end of chain link so that between 26 front end of chain link and one 3 tail end of chain link and
Between 37 front end of 26 tail end of chain link and chain link, Small-angle Rotation can be done around corresponding axis pin 24.
The Small-angle Rotation refers to 0.5~1 ° of rotational angle.
The dummy bar head 1 includes dummy bar head ontology 102 and nut assembly 103, and the end face of dummy bar head ontology 102 is L-shaped,
Middle vertical plane is connect by nut assembly 103 with base head 101, and the groove 104 of opening upwards is provided on horizontal plane, to ensure to fill out
The storage of cold steel and the cooling of base head when steel starts is poured when filling in dummy bar head.
The groove 104 is single slot or double flute, and trough rim edge has protrusion into slot.
Two sides of the dummy bar head ontology 102 are each provided with an adjustment backing plate 105.
The upper periphery of the dummy bar head ontology 102 uses the structure design of big chamfering.
It molds and produces for large section special steel, provide a kind of vertical continuous casting production technology, dummy bar of the present invention is fitted
For the vertical continuous casting production technology, the production technology of big cross section special steel molding at this stage is may replace, both can guarantee strand metal
The symmetry of macrostructure and the quality of product, and production efficiency can be improved.Meanwhile dummy bar head structure of the present invention can adapt to not
The equipment of same specification section, adapts to above-mentioned technique, not only can guarantee the symmetry of strand metal macrostructure and the quality of product, but also
Production efficiency can be improved.
Specifically：
(1) it can guarantee that dummy bar head can be smoothly entered in the crystallizer of vertical casting machine using the structure design of big chamfering.
(2) ensure the filling that dummy bar head enters after crystallizer.
(3) after slab cut-out, since dummy bar head is using form of grooves design, base head forms a hook with dummy bar head and connects
It connects, and the bolt assembly on dummy bar head then becomes an entirety when molten steel injects crystallizer with molten steel solidification, becomes slab
The part on head, in this way when slab after flame cutting machine, can ensure that the connection of base head, dummy bar head and with dummy bar one
The output risen.
(4) dummy bar offline after base head, dummy bar head can be detached smoothly, then be the nut by unclamping bolt assembly, and
After cutting off bolt with cutting machine, strand head smoothly detaches under gravity, around A points are rotational automatic.
(5) adjustment of dummy ingot head width is then by the thickness of the adjustment backing plate group in dummy bar head both sides, realizes width
Transformation.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is one structure diagram of chain link of the present invention.
Fig. 3 is two structure diagram of chain link of the present invention.
Fig. 4 is three structure diagram of chain link of the present invention.
Fig. 5 is dummy bar head structure schematic diagram of the present invention.
Fig. 6 is another angle schematic diagram of dummy bar head structure of the present invention.
Fig. 7 is dummy bar head of the present invention and base head connection status schematic diagram.
Fig. 8 is dummy bar head of the present invention and base head separate state diagram.
Fig. 9 is dummy bar Design of length schematic diagram of the present invention.
Figure 10 is dummy bar width design schematic diagram of the present invention.
Figure 11 is to rotate schematic diagram between chain link of the present invention.
Specific embodiment
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of super thick section Vertical Slab Caster dummy bar, including dummy bar head 1,
Dummy bar head 1 is by one 2 connecting-rod body of axis pin, and liner plate 5 of the body of rod by bar main body and outside bar main body forms, and bar main body is by multiple
Chain link is sequentially connected composition by axis pin 24.Chain link includes chain link 1, chain link 26 and chain link 37, wherein, one 3 front end of chain link
There is recess, be connected together with the plush copper of 1 tail end of dummy bar head, the front end of chain link 26 is L-shaped, the L-shaped block with one 3 tail end of chain link
Cooperation, the front end of chain link 37 is L-shaped, is coordinated with the L-shaped block of 26 tail end of chain link so that 26 front end of chain link and chain link
Between one 3 tail ends and between 37 front end of 26 tail end of chain link and chain link, 0.5~1 ° can be done around corresponding axis pin 24
Small-angle Rotation.So that generally a kind of rigid structure of approximation of dummy bar, and adapt to each different section and want
It asks.
As shown in Figure 5 and Figure 6, dummy bar head of the invention, including dummy bar head ontology 102 and nut assembly 103, nut assembly
103 include bolt and nut.The end face of dummy bar head ontology 102 is L-shaped, and wherein vertical plane passes through nut assembly 103 and base head 101
It connects, the groove 104 of opening upwards is provided on horizontal plane.Groove 104 can be single slot or double flute, or " pawl " shape,
Trough rim edge has protrusion into slot.Two sides of dummy bar head ontology 102 are each provided with an adjustment backing plate 105, and composition is adjusted
Whole backing plate group.
As shown in Figure 7 and Figure 8, the storage of cold steel and when pouring steel and the starting when design of groove 104 can ensure that filling dummy bar head
The cooling of base head, and by unclamping nut, cut-out bolt can realize the separation of base head 101 and dummy bar head；By adjusting backing plate group
The variation of section width can be achieved.So as to adapt to the process characteristic of vertical casting machine.
The specific mentality of designing of dummy bar head is as follows：
Basic design parameters：
Strand parameter：Thickness：Big cross section is (such as：500th, 600,700mm etc.)
Width：Big cross section is (such as：1100th, 1500mm etc.)
The design of dummy bar head mainly considers the following：
1st, 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 standard is poured
It is standby --- filling dummy bar head.Therefore the structure design of dummy bar head first has to consider that dummy bar head can smoothly enter crystallizer, and arrive
Up to presetting position, therefore in the upper end of dummy bar head, periphery uses the structure design of big chamfering；Secondly dummy bar head is reached to preset
Behind fixed position, the connection that enough cold steel are stored on dummy bar head and cast the base head after starting and dummy bar head can guarantee,
Therefore, groove 104 or " pawl " shape structure are designed on dummy bar head ontology 102, after such dummy bar head enters crystallizer, groove 104 with
Crystallizer forms " bucket " type space of an access molten steel, and cold steel is laid in bottom (the i.e. groove 104 in " bucket " type space
In), you can to meet the storage of the filling cold steel of dummy bar head, ensure the cooling of base head when casting starts, and can guarantee simultaneously
Casting starts to dummy bar head in base head cut-out this period to draw and (hold in the palm) strand and pass through two cold-zones.
2nd, after the cut-out of base head, base head, the connection of dummy bar head and the output with dummy bar together
After pouring steel and starting, strand reaches specified (cutting) position under " traction " of dummy bar head, and flame cutting machine starts
Work.After base head is cut off, dummy bar (head) continues downwards with base head, and according to technological requirement, base head 101, draws dummy bar head
After spindle blade reaches designated position as entirety, the related base head 101 of dummy bar is tumbled together, at this moment it has to be considered that
During tumbling, base head 101 cannot come off, otherwise by production development accident.Therefore it needs to increase a set of connection bolt assembly.
In this way after pouring steel and starting, after injecting the high-temperature molten steel in crystallizer with threaded bolt contacts, bolt head will melt or be embedded in base head
In, and bolt is fixed on by nut in dummy bar head, that is, base head is unified into an entirety by bolt and dummy bar head (bar),
As shown in Figure 7.Certainly, the design of dummy bar head ontology 102, the operating space and dummy bar head for having to consider bolt assembly 103 will
There are enough strength and stiffness.
3rd, base head, dummy bar head separation
According to technology arrangement, when dummy bar hangs rear portion ejection roller way together with base head 101 and is transported to the storage position specified
It postpones, unclamps nut, bolt is cut off, as shown in fig. 7, base head 101 will be under the action of dead weight, around base head 1 and dummy bar head
Some " A " point rotation of contact, base head Automatic-falling, as shown in Figure 8.So as to fulfill the separation of base head 101 and dummy bar head, certainly
The design of 102 upper bolt hole of dummy bar head ontology will also coordinate the separation of base head 101 and dummy bar head.According further to the company of different section
Strand, bolt, nut assembly can set different quantity, it is ensured that continuous casting billet is reliably connect with being smoothly detached with dummy bar head.
4th, the adjustment of dummy ingot head width
The adjustment of dummy ingot head width is then by the thickness of the adjustment backing plate group in dummy bar head both sides, realizes the change of width
It changes.
The specific mentality of designing of dummy bar of the present invention is as follows：
Basic design parameters：
Strand parameter：Thickness：Big cross section is (such as：500th, 600,700mm etc.).
Width：Big cross section is (such as：1100th, 1500mm etc.).
Specifically：
1) dummy ingot pole length is determining
According to the Design of Roll Range and process characteristic of vertical casting machine, ensureing 1 distance from top vertical casting machine knot of dummy bar head
During brilliant 8 300~350mm of copper coin top surface of device, it is ensured that the driven roller at least two two pairs of rollers clamping of two cold fan-shaped section of vertical casting machine is drawn
Spindle blade 13.And driving roller center >=300mm that 13 tail portion of dummy bar is clamped apart from fan-shaped section, as shown in figure 9, being represented in figure
0# fan-shaped sections 9,1# fan-shaped sections 10,2# fan-shaped sections 11 and 2# fan-shaped sections 12.
2) dummy bar width is determining
The width of dummy bar 13 be it is matched with the design of driven roller in fan-shaped section, as shown in Figure 10, fan-shaped section inner arc
Driven roller 14 and fan-shaped section outer arc driven roller 15 clamp dummy bar 13, and the width of dummy bar 13 should ensure that fan-shaped section inner arc drives
Roller 14 and fan-shaped section outer arc driven roller 15 are pressed in the effective length on chain link, ensure that dummy bar 13 adapts to different in width casting again
The requirement of base.The design of dummy bar 13 simultaneously mitigates its weight as far as possible, and considers the roller assignment system of two cold fan-shaped sections
Degree.Simultaneously when arranging dummy bar chain section structure, make driven roller impetus (part other than roller axle bearing) in fan-shaped section just
It is arranged in well on the riser (gusset) of the box-structure of chain link 1, chain link 26 and chain link 37.
3) structure design of dummy bar
According to the characteristics of vertical casting machine, although dummy bar 13 is designed to approximate rigid structure, while in order to eliminate equipment
The error of installation, dummy bar 13 is mainly by dummy bar head 1, axis pin 1, liner plate 5, axis pin 24, chain link 1, chain link 26 and chain link
37 grade parts form.
Wherein chain link 26 and chain link 37 are designed to reversed (up-down structure form) boss structure.And according to technological requirement,
By in boss edge to the size Control at pin hole center to a suitable section, when being connected between chain link by axis pin 24
After coming, although chain link 1, chain link 26 and chain link 37 can rotate between each other around axis pin, since boss limits, chain link
Between the rotation of 0.5~1 ° of low-angle can be only done around axis pin, as shown in figure 11.Accordingly even when two cold-zone of vertical casting machine is fanned
" waveform " of the roll surface that roller in shape section is formed not in a plane, by each chain link of dummy bar can surround axis pin into
The rotation of 0.5~1 ° of low-angle of row also can guarantee that two cold-zone fan shaped section driving roller of vertical casting machine steadily clamps dummy bar 13.When
The design of the angle so rotated can not be too big, if too big, during the " RUN " of dummy bar, and shape between each chain link
Into accumulative rotation angle the head for causing dummy bar or tail portion and copper plate of crystallizer, two chilling rollers, ejection roller way are interfered, very
To can not work normally.
The surface for being covered in chain link 1, chain link 26 and chain link 37 is bolted using the liner plate 5 of special substance
(two sides) increases the frictional force with driven roller in the walking process of dummy bar 13, ensures that driven roller has dummy bar enough drives
Power.
Wherein the quantity of chain link 26 is determined according to the technological requirement of vertical casting machine.
Claims (2)
1. a kind of super thick section Vertical Slab Caster dummy bar, including dummy bar head (1), dummy bar head (1) is connected by axis pin one (2)
Extension bar body, which is characterized in that liner plate (5) of the body of rod by bar main body and outside bar main body forms, and the bar main body is by more
A chain link is sequentially connected composition by axis pin two (4), and the chain link includes chain link one (3), chain link two (6) and chain link three (7),
In, there is recess in chain link one (3) front end, is connected together with the plush copper of dummy bar head (1) tail end, and the front end of chain link two (6) is L-shaped, with
The L-shaped block cooperation of chain link one (3) tail end, the front end of chain link three (7) is L-shaped, is coordinated with the L-shaped block of chain link two (6) tail end,
So that between described two (6) front end of chain link and chain link one (3) tail end and chain link two (6) tail end and chain link three (7) front end it
Between, Small-angle Rotation can be done around corresponding axis pin two (4), the Small-angle Rotation refers to 0.5~1 ° of rotational angle；It is described
Dummy bar head (1) includes dummy bar head ontology (102) and nut assembly (103), and the end face of dummy bar head ontology (102) is L-shaped, wherein perpendicular
It faces directly and is connect by nut assembly (103) with base head (101), the groove (104) of opening upwards is provided on horizontal plane, it is described recessed
Slot (104) is single slot or double flute, and the trough rim edge of the groove (104) has protrusion into slot.
2. super thick section Vertical Slab Caster dummy bar head according to claim 1, which is characterized in that the dummy bar head ontology
(102) two sides are each provided with an adjustment backing plate (105).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270985.9A CN105728677B (en) | 2016-04-27 | 2016-04-27 | A kind of super thick section Vertical Slab Caster dummy bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270985.9A CN105728677B (en) | 2016-04-27 | 2016-04-27 | A kind of super thick section Vertical Slab Caster dummy bar |
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| Publication Number | Publication Date |
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| CN105728677A CN105728677A (en) | 2016-07-06 |
| CN105728677B true CN105728677B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610270985.9A Active CN105728677B (en) | 2016-04-27 | 2016-04-27 | A kind of super thick section Vertical Slab Caster dummy bar |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332617B (en) * | 2018-12-24 | 2024-02-06 | 大冶特殊钢有限公司 | Continuous casting machine dummy ingot method, continuous casting machine chain dummy ingot bar and continuous casting machine system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4074745A (en) * | 1976-01-16 | 1978-02-21 | Vereinigte Osterreichische Eisen- Und Stahlwerke - Alpine Montan Aktiengesellschaft | Starter bar for guiding and extracting cast strands of various thicknesses |
| CN201249264Y (en) * | 2008-08-29 | 2009-06-03 | 宝山钢铁股份有限公司 | Adjusting block for conticaster dummy bar head |
| CN201960105U (en) * | 2011-02-18 | 2011-09-07 | 柴又新 | Whole plate spring round billet dummy bar |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3602290A (en) * | 1968-08-23 | 1971-08-31 | Mclouth Steel Corp | Dummy bar for continuous casting |
| US5197533A (en) * | 1990-11-23 | 1993-03-30 | Gunther Behrends | Self-supporting, flexible continuous casting starter bar |
| CN2434084Y (en) * | 2000-05-31 | 2001-06-13 | 钢铁研究总院 | Flexible dummy bar for metal continuous caster with complex spring steel sheet connection structure |
| CN205599890U (en) * | 2016-04-27 | 2016-09-28 | 中国重型机械研究院股份公司 | Vertical slab caster dummy bar of super heavv section |
-
2016
- 2016-04-27 CN CN201610270985.9A patent/CN105728677B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4074745A (en) * | 1976-01-16 | 1978-02-21 | Vereinigte Osterreichische Eisen- Und Stahlwerke - Alpine Montan Aktiengesellschaft | Starter bar for guiding and extracting cast strands of various thicknesses |
| CN201249264Y (en) * | 2008-08-29 | 2009-06-03 | 宝山钢铁股份有限公司 | Adjusting block for conticaster dummy bar head |
| CN201960105U (en) * | 2011-02-18 | 2011-09-07 | 柴又新 | Whole plate spring round billet dummy bar |
| 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 |
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| CN105728677A (en) | 2016-07-06 |
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