CN205147260U - Dummy ingot head - Google Patents
Dummy ingot head Download PDFInfo
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- CN205147260U CN205147260U CN201520763091.4U CN201520763091U CN205147260U CN 205147260 U CN205147260 U CN 205147260U CN 201520763091 U CN201520763091 U CN 201520763091U CN 205147260 U CN205147260 U CN 205147260U
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- leptoprosopy
- dummy bar
- conduit
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Abstract
The utility model provides a dummy ingot head, which comprises a body, a terminal surface of body, just is in for taking off the spindle face for meeting steel face, a side meet steel face boss, dovetail, the dovetail include along leptoprosopy channel that body width direction extends, with the leptoprosopy channel link up and along opening that body length direction extends, with leptoprosopy channel and opening have a perfect understanding and lie in take off the wide face channel on one side of the spindle face, wherein, the leptoprosopy channel is the cross -section and is polygonal frustum, just centre bit in the distance of dovetail the length of meeting steel face terminal surface does the body overall length 17. Through science, rational design dovetail molten bath cavity size, shape, not only make the utility model discloses not droing at the dummy ingot in -process, easily droing taking off dummy ingot department, the dummy ingot has sufficient intensity to guarantee moreover.
Description
Technical field
The utility model relates to metallurgical continuous casting equipment technical field, particularly a kind of dummy bar head on continuous casting dummy bar.
Background technology
In metallurgical continuous casting technical field, the implication of dummy ingot (startcasting) is: when continuous casting steel machine/ironmaking processes starts to pour into a mould, by the operation that the high temperature strand of the band liquid core of initial set in crystallizer pulls straight by dummy bar.Before starting cast, the dummy bar head of dummy bar is placed in the false bottom as crystallizer in crystallizer, makes it crystallizer seam tightly block to stop molten steel to flow out.Open and to pour into molten steel in crystallizer after watering and dummy bar head links together securely, dummy bar draws descending by the live-roller of withdrawal straightening machine or the backing roll of two cold-zones, the hot base of initial set in crystallizer is pulled straight casting machine, until after the strand solidified enters withdrawal straightening machine, dummy bar head is separated with strand.Dummy bar head plays the effect of base plate wherein.Seal crystalliser feet when opening and watering, open and water rear molten steel and solidify in the cavity that dummy bar head and crystallizer are formed, combining with the strand solidified in crystallizer pulls out strand.
At present, because position, dummy bar head dovetail groove molten bath volume is little and shape is cone in conticaster production process, the dummy ingot intensity formed after the cooling of position, dovetail groove molten bath is not enough, dummy ingot in dummy bar running is easily ruptured, or when easily occurring that dummy bar and strand also do not depart from withdrawal straightening machine, come off between dummy bar and strand, make strand pull out withdrawal straightening machine and to cause conticaster single current to open the accident of watering failure.
The patent No. be 200820153329.1 Chinese patent the automatic de-ingot formula dummy bar head device of a kind of conticaster is disclosed, it through annular hangers comprising dummy bar head body and be arranged on its left end, steel face of the meeting intersection on the intrados on the top of its dummy bar head body and right side is provided with a circular arc plush copper, the intrados of circular arc plush copper and dummy bar head body is tangent, and with meet steel face fillet and connect.The dummy ingot groove of a concave wedge type is had below the middle part of dummy bar head body, this dummy ingot groove have arc-shaped front dummy ingot groove face and after draw and determine groove face, the center position of the circular arc of front dummy ingot groove face must higher than the plush copper center of arc about 5 ~ 40mm of circular arc plush copper, after draw the circular arc determining groove face center of rotation be the bottom of circular arc plush copper and the fillet center that connects of meeting steel face, the arc radius value of rear dummy ingot groove face is less than the arc radius value of front dummy ingot groove face, during work, the pit of circular arc plush copper and strand forms revolute pair, effect by gravity takes off ingot naturally, the utility model extensively can apply to the conticaster production field of each iron and steel enterprise, but this kind of dummy bar head deingot mode is for light section specification.
The Chinese patent that the patent No. is 200520040526.9 provides a kind of ingot leader leakproof structure for starting of continuous casting, and it is arranged on dummy bar head body, and this body offers dovetail groove, arranges pad along dovetail groove notch inwall; Also tiltedly establish pad in described dovetail groove, this pad one end is against dovetail groove orifice, and the other end is against in dovetail groove; Dovetail groove bottom land bight arranges pad.Cooling leak-proof washer of the present utility model not only plays cooling effect when opening and watering, also effectively serve to open and water leakproof effect, substantially increase to open and water success rate, ensure that continuous casting produce continue, safety, direct motion, improve the service life of conticaster, save the maintenance time and maintenance cost of causing because of bleed-out accident, create gratifying economic benefit and social benefit.But the tapering of its dovetail groove is selected excessive, easily causes strand to come off at withdrawal straightening machine place.
Summary of the invention
The purpose of this utility model is to provide a kind of dummy bar head, to solve the problems such as strand easily comes off, the scope of application is little that prior art exists.
In order to solve the problem, the utility model provides following technical scheme:
A kind of dummy bar head, comprise body, one end face of described body is for meeting steel face, one side is de-ingot face, and form boss in described end, one end, steel face of meeting, dovetail groove, described dovetail groove comprises the leptoprosopy conduit extended along described body width direction, through and the gap that is that extend along described body length direction with described leptoprosopy conduit, with described leptoprosopy conduit and gap through and be positioned at wide conduit of side, described de-ingot face, described leptoprosopy conduit is cross section is polygonal frustum, and described dovetail groove to be centrally located at the length of meeting steel face end face described in distance be described body overall length 1/7.
Preferably, in above-mentioned dummy bar head, described in meet steel face end face and tilt to the outside 5 ° to form the first inclined plane, outwards cast flow path direction at described body thickness 3/5 place again and to tilt 30 degree of formation second inclined planes.
Preferably, in above-mentioned dummy bar head, the middle part of described first inclined plane is before described second inclined plane of formation, and first line tilt 80 to 83 is spent and formed described outer arc inclined-plane, and the perspective plane on described outer arc inclined-plane forms polygonal frustum to inner arc direction depth.
Preferably, in above-mentioned dummy bar head, the width of described leptoprosopy conduit be described body width 3/5, thickness is 5/8 of described body thickness; The width of described gap is 1/3 of described leptoprosopy channel width.
Preferably, in above-mentioned dummy bar head, the adjacent fillet of leaning now to one side, then to the other of the bottom surface of described leptoprosopy conduit.
Preferably, in above-mentioned dummy bar head, two sides, described body length centre are provided with the first hole, and/or, in the two sides of described body, apart from described body tail end end face described in body length 1/8 place be provided with the second hole.
Preferably, in above-mentioned dummy bar head, described dovetail groove surrounding rounding.
Analyze known, by science, appropriate design dovetail groove molten bath cavity size, shape, not only make the utility model not come off in dummy ingot process, at deingot, place easily comes off, and dummy ingot has enough intensity to ensure.
Accompanying drawing explanation
Fig. 1 is the structural representation (broken section) of the utility model embodiment;
Fig. 2 is the sectional structure schematic diagram along A-A line in Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1 and Figure 2, the utility model embodiment comprises body 1, is arranged in dovetail groove 4, the boss 5 of end, body 1 one end.In the present embodiment, body 1 is similar to cylinder, but the utility model is not limited thereto, and prism, cone table etc. also can with reference to uses.
Specifically, the orientation (Fig. 1 viewing angle is different, and it is different that orientation below limits term, and to this, those skilled in the art are to be understood that) according to Fig. 1, the left end end face of body 1 is for meeting steel face X, side, downside for taking off ingot face T.Be formed with boss 5 meeting end, X one end, steel face, dovetail groove 4, dovetail groove 4 comprises the leptoprosopy conduit b extended along body 1 width, through and the gap E that is that extend along body 1 length direction with leptoprosopy conduit b, through and be positioned at wide conduit B of T side, de-ingot face (what need to point out is with leptoprosopy conduit b and gap E, Reference numeral b, gap E, wide conduit B not only represents corresponding site, and represent the length at this position, the parameter such as width or thickness), in general, the leptoprosopy conduit b of dovetail groove 4 is positioned on the left of boss 5, wide conduit B is positioned on the downside of boss 5, gap E passes in the middle part of two boss 5.Further, leptoprosopy conduit b is cross section is polygonal frustum, the adjacent fillet of leaning now to one side, then to the other of the bottom surface of leptoprosopy conduit b and cone, and the center of dovetail groove 4 (this center is the intersection point of leptoprosopy conduit b, wide conduit B, the gap E three plane of symmetry) is positioned at the length that distance meets steel face X end face is 1/7 of the overall length H of body 1.
Figure is addressed from above, the molten bath cavity of dovetail groove 4 is two opening forms, first opening is on intrados, second opening be dummy bar meet on steel face, such dummy bar dovetail groove molten bath cavity open water rear formation dummy ingot if teacup band is shape, it is more abundant that such molten bath cavity makes cold burden melt wherein, and namely the intensity of dummy ingot is better.
Further preferably, meet steel face X end face and tilt to the outside 5 ° to form the first inclined plane X1, outwards cast flow path direction inclination 30 degree of formation second inclined plane X2 again at 3/5 place of the thickness D of body 1.More preferably, the middle part (one section, central area) of the first inclined plane X1 is before formation second inclined plane X2, and first line tilt 80 to 83 is spent and formed outer arc inclined-plane, and the perspective plane on outer arc inclined-plane forms polygonal frustum to inner arc direction depth.
The end face 51 of boss 5.
The width D that the width (substantially identical with wide conduit B in Fig. 2) of leptoprosopy conduit b is body 1 is (because body 1 is cylinder substantially, therefore the width of body 1 is substantially equal with thickness, also represents with D) 3/5, thickness (substantially equaling the distance of end face on the upside of end face 51 to leptoprosopy conduit b) the thickness D that is body 1 5/8; The width (as Fig. 1) of gap E is 1/3 of leptoprosopy conduit b width.Further, dovetail groove 4 inside and rounding equal to the transition position at other positions thereof, radius is 8-16mm.
For the ease of installing, using, two sides, body 1 lengthwise centers position are provided with the first hole 3, and in the two sides of body 1, distance breech face body length 1/8 place is provided with the second hole 2.Wherein, the first hole 3 is convenient to install the present embodiment, and the above-below direction in the second hole 2 is selected then determine to reach corner according to the large arc of conticaster and determine size, and chain link is taked internal and external stopper to add and worn pin connection.
Analysis is carried out to the utility model known, the utility model is used for the anterior dummy bar head part of dummy bar of metallurgy conticaster dummy ingot, its position, dovetail groove molten bath cavity size is designed to rectangular cone, dovetail groove pool size increases with strand sectional area and increases, being R12-R16 meeting dummy bar head end, steel face rounding, making like this to avoid when sending dummy bar scratching copper pipe inner surface.As for design parameter, dovetail groove pool width is about 3/5 of dummy bar width, and thickness is 5/8 of body thickness, opens boss intensity when watering enough, prevents dummy ingot fracture failure.Dovetail groove molten bath spot size shape is polygonal frustum, increases the bight resistance of appropriateness, prevents from just coming off not going out withdrawal straightening machine strand.Molten bath cavity center is about 1/7 of body overall length apart from meeting end, steel face, and end tilts about 5 degree to intrados, to be convenient to open when watering molten steel to dummy ingot dovetail groove molten bath place diffusing.
As known by the technical knowledge, the utility model can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Allly all to be included in the utility model within the scope of the utility model or being equal to the change in scope of the present utility model.
Claims (7)
1. a dummy bar head, comprise body, one end face of described body is for meeting steel face, one side is de-ingot face, and form boss in described end, one end, steel face of meeting, dovetail groove, described dovetail groove comprises the leptoprosopy conduit extended along described body width direction, through and the gap that is that extend along described body length direction with described leptoprosopy conduit, with described leptoprosopy conduit and gap through and be positioned at wide conduit of side, described de-ingot face, it is characterized in that, described leptoprosopy conduit is cross section is polygonal frustum, and described dovetail groove to be centrally located at the length of meeting steel face end face described in distance be described body overall length 1/7.
2. dummy bar head according to claim 1, is characterized in that, described in meet steel face end face and tilt to the outside 5 ° to form the first inclined plane, outwards cast flow path direction at described body thickness 3/5 place again and to tilt 30 degree of formation second inclined planes.
3. dummy bar head according to claim 2, it is characterized in that, the middle part of described first inclined plane is before described second inclined plane of formation, and first line tilt 80 to 83 is spent and formed outer arc inclined-plane, and the perspective plane on described outer arc inclined-plane forms polygonal frustum to inner arc direction depth.
4. dummy bar head according to claim 1, is characterized in that, the width of described leptoprosopy conduit be described body width 3/5, thickness is 5/8 of described body thickness; The width of described gap is 1/3 of described leptoprosopy channel width.
5. dummy bar head according to claim 1, is characterized in that, the adjacent fillet of leaning now to one side, then to the other of the bottom surface of described leptoprosopy conduit.
6., according to the arbitrary described dummy bar head of claim 1-5, it is characterized in that, two sides, described body length centre are provided with the first hole, and/or, in the two sides of described body, apart from described body tail end end face described in body length 1/8 place be provided with the second hole.
7., according to the arbitrary described dummy bar head of claim 1-5, it is characterized in that, described dovetail groove surrounding rounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520763091.4U CN205147260U (en) | 2015-09-29 | 2015-09-29 | Dummy ingot head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520763091.4U CN205147260U (en) | 2015-09-29 | 2015-09-29 | Dummy ingot head |
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| Publication Number | Publication Date |
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| CN205147260U true CN205147260U (en) | 2016-04-13 |
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| CN201520763091.4U Active CN205147260U (en) | 2015-09-29 | 2015-09-29 | Dummy ingot head |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750517A (en) * | 2016-04-27 | 2016-07-13 | 中冶京诚工程技术有限公司 | Dummy bar head special for continuous-cast oval blanks |
| CN114160765A (en) * | 2021-11-30 | 2022-03-11 | 广东韶钢松山股份有限公司 | Square billet continuous casting dummy ingot assembly and continuous casting method using same |
-
2015
- 2015-09-29 CN CN201520763091.4U patent/CN205147260U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750517A (en) * | 2016-04-27 | 2016-07-13 | 中冶京诚工程技术有限公司 | Dummy bar head special for continuous-cast oval blanks |
| CN114160765A (en) * | 2021-11-30 | 2022-03-11 | 广东韶钢松山股份有限公司 | Square billet continuous casting dummy ingot assembly and continuous casting method using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170606 Address after: 435001 Huangshi Road, Hubei, Huangshi, No. 316 Patentee after: Hubei Xinyegang Special Steel Tube Co., Ltd. Address before: 435001 Huangshi Road, Hubei, Huangshi, No. 316 Patentee before: Hubei Xinyegang Steel Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 435001 Huangshi Road, Hubei, Huangshi, No. 316 Patentee after: Daye Special Steel Co., Ltd Address before: 435001 Huangshi Road, Hubei, Huangshi, No. 316 Patentee before: Hubei Xinyegang Special Steel Tube Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |