CN104141052B - Non-corrosive metal slab stripping esr dummy device - Google Patents
Non-corrosive metal slab stripping esr dummy device Download PDFInfo
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- CN104141052B CN104141052B CN201410405578.5A CN201410405578A CN104141052B CN 104141052 B CN104141052 B CN 104141052B CN 201410405578 A CN201410405578 A CN 201410405578A CN 104141052 B CN104141052 B CN 104141052B
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Abstract
The invention belongs to special alloy esr equipment technical field, relate to a kind of non-corrosive metal slab stripping esr dummy device, described dummy device includes dummy ingot iron (1) and end water tank (3); Two dummy ingot iron are symmetricly set on water tank upper surface, end arranged on left and right sides, be communicated with by dummy ingot transverse tube (9) after two the dummy ingot pipes be communicated with cooling water system are each passed through end water tank arranged on left and right sides, form cooling water channel, the dummy ingot transverse tube of distance water tank upper surface, end 35-45mm forms adhesive spots; Two dummy ingot pipe (6) tops are fixed by sustained ring (8) and dummy ingot iron (1); Make dummy ingot iron (1), dummy ingot pipe (6) relative fixing with the position of end water tank (3) by fitting nut (7); Upper surface welding " U " type dummy ingot part (10) of dummy ingot pipe (6), " U " type dummy ingot part (10) forms adhesive spots.Invention increases the success ratio of slab stripping, improve the effect of slab stripping esr.
Description
Technical field
The invention belongs to special alloy esr equipment technical field.Particularly relate to a kind of non-corrosive metal slab stripping esr dummy device.
Background technology
Along with the demand of steel plate of pressure vessel, boiler sheet, midium-carbon steel plate, shipping steel plate, non-corrosive metal sheet material is increasing, the progress of board materials production technology, the method adopting esr to produce slab will replace traditional method billet hammer cogging being become slab gradually.The method of current employing esr manufactures slab and mainly contains fixed esr and stripping formula esr.
Patent " CN101003859A " describes a kind of plate blank electroslag furnace, as shown in Figure 1, dummy device is by dummy ingot iron 1, adhesive spots 2, bearing pin 5, wedge 4(fixed action) form, weld-bond joint is connected on dummy ingot iron, described dummy ingot iron is positioned at Water-cooled bottom water tank 3 upper surface, described bearing pin connects with described dummy ingot iron through Water-cooled bottom water tank 3, and fix with wedge 4, described bearing pin connects with stripping system again, slab is set in adhesive spots, by stripping system, slab is pulled out in crystallizer, realize slab manufacture.This dummy device exists following not enough:
1, molten drop is dropped in after on water tank upper surface, the end and forms metal pool, the thermo parameters method of metal pool is uneven, metal pool is from four thoughtful heart portions, temperature raises gradually, surrounding minimum temperature is about 1100-1150 DEG C, the temperature at adhesive spots place is about 1200-1250 DEG C, and heart portion top temperature is about 1500-1550 DEG C.Uneven due to thermo parameters method, the rapid solidification metal of crystallizer surrounding, and the metal in metal pool heart portion is in curdled appearance completely;
2, the adhesive spots 2 on dummy ingot iron only has left and right two, irrational distribution.Slab heart portion temperature is higher than the zero pour of metal, be in incomplete curdled appearance, intensity difference, the metal at slab adhesive spots place is in firm curdled appearance, intensity is poor, and the metal of slab edge is in complete curdled appearance, and intensity is good, because the width of slab is greater than 1250mm, slab different sites place curdled appearance, intensity are different.Therefore, slab is in incipient stripping process, by force unbalance, tilt upward in slab both sides, centre is drum downwards, steel ingot upwarps the gap shrinks caused between itself and crystallizer, form huge resistance, when resistance is greater than the tensile strength of adhesive spots position, slab and dummy device are thrown off, cannot continue to produce, the success ratio of slab pull-out crystallizer is low.
So, propose a kind of dummy device rational in infrastructure, improve produced problem in producing at present, improve the stripping success ratio of electroslag remelting plate blank, to meet the needs of Special Steel In China slab production technology development.
Summary of the invention
Object of the present invention is intended to the deficiency overcoming existing dummy device structure design, provides a kind of non-corrosive metal slab stripping esr dummy device.
The present invention completes the technical scheme that its invention task adopts: a kind of non-corrosive metal slab stripping esr dummy device, and described dummy device includes dummy ingot iron and end water tank; Described dummy ingot iron is square steel plate, and the dummy ingot iron described in two is symmetricly set on water tank upper surface, end arranged on left and right sides, and described dummy ingot iron has center hole, and the outside dimension of Circularhole diameter and dummy ingot pipe etc. are large; Be provided with dummy ingot pipe, described dummy ingot pipe is hollow structure, be communicated with by dummy ingot transverse tube after the dummy ingot pipe described in two be communicated with cooling water system is each passed through end water tank arranged on left and right sides, form cooling water channel, described dummy ingot transverse tube distance water tank upper surface, end 35-45mm is high, and described dummy ingot transverse tube forms adhesive spots; Dummy ingot pipe described in two passes the center hole of corresponding dummy ingot iron, by sustained ring and two dummy ingot ferropexies; The outside, lower end of described dummy ingot pipe is helicitic texture, makes dummy ingot iron, dummy ingot pipe relative with the position of end water tank fixing by fitting nut; Described sustained ring is positioned at the upper surface of described dummy ingot iron and is enclosed within described dummy ingot pipe, and described sustained ring and dummy ingot iron, dummy ingot pipe are welded to connect; At the upper surface of described dummy ingot pipe welding " U " type dummy ingot part, described " U " type dummy ingot part is steel construction piece, water tank upper surface 50-55mm at the bottom of its apogee distance, and described " U " type dummy ingot part forms adhesive spots.
The feature of this apparatus design is: when slag is poured in crystallizer, close cooling water system, a large amount of slag is prevented to be set on dummy ingot pipe, be energized when electrode inserts in slag, esr starts, slag Wen Gaoda 1700-1750 DEG C, electrode melts in slag, molten drop is through slag, be dropped on water tank upper surface, the end and form metal pool fast, open cooling water system, the heat of molten steel is taken away rapidly by water coolant, metal pool is from four thoughtful heart portions, uniformity of temperature profile, about 1100-1150 DEG C, the metal in metal pool four thoughtful heart portion is in complete curdled appearance, be set on left and right " U " type structural part and dummy ingot transverse tube, bonding length reaches 1000-1100mm, improve adhesive effect, make it firmly bonding, dummy device is pulled out crystallizer together with the electroslag slab be set on dummy device by then stripping system.Because bonding length reaches 1000-1100mm, can ensure that the tension distribution in stripping process is more even, prevent slab deformation of bottom, thus improve stripping success ratio.
The invention has the beneficial effects as follows: the cooling system in described dummy device, change the thermo parameters method of metal pool, the temperature in metal pool heart portion is reduced, makes its rapid solidification; The adhesive spots of this dummy device is evenly distributed rationally, and bonding length reaches 1000-1100mm, can ensure that slab is firmly set in adhesive spots, stressed more even in stripping process, avoid slab deformation; Utilize this device, eliminate slab deformation of bottom problem in stripping esr process, substantially increase the success ratio of slab stripping, improve the effect of slab stripping esr; This apparatus structure is simple, and for production cost of enhancing productivity, save, improving the quality of products all has a very important role.
Accompanying drawing explanation
Fig. 1 is existing slab stripping esr dummy device schematic diagram.
Fig. 2 is the structural representation of the embodiment of the present invention.
In figure, 1, dummy ingot iron, 2, dummy ingot point, 3, end water tank, 4, fixing wedge, 5, bearing pin, 6, dummy ingot pipe, 7, fitting nut, 8, support ring, 9, dummy ingot transverse tube, 10, " U " type dummy ingot part.
concrete enforcement is implemented
Below in conjunction with drawings and Examples, the present invention is illustrated.
Embodiment 1: specification is the UNSS32760 alloy slab of 200mm × 1250mm × 4000mm, and described dummy device includes dummy ingot iron 1 and end water tank 3; It is long that end water tank 3 is of a size of 1280mm() × 200.5mm(is wide) × 155mm(is thick), described dummy ingot iron 1 is square steel plate, dummy ingot iron described in two is symmetricly set on water tank upper surface, end arranged on left and right sides, described dummy ingot iron has center hole, it is long that dummy ingot iron 1 is of a size of 140mm() × 140mm(is wide) × 20mm(is thick), dummy ingot iron center hole diameter is Ф 60mm; Be provided with dummy ingot pipe 6, described dummy ingot pipe is hollow structure, be communicated with by dummy ingot transverse tube 9 after the dummy ingot pipe 6 described in two be communicated with cooling water system is each passed through end water tank arranged on left and right sides, form cooling water channel, described dummy ingot transverse tube distance water tank upper surface, end 35-45mm is high, and described dummy ingot transverse tube forms adhesive spots; The external diameter of dummy ingot pipe 6 is Ф 60mm, and internal diameter is Ф 35mm, and the dummy ingot pipe 6 described in two passes the center hole of corresponding dummy ingot iron, by support ring 8 and dummy ingot ferropexy; The outside, lower end of described dummy ingot pipe 6 is helicitic texture, makes dummy ingot iron 1, dummy ingot pipe 6 relative with the position of end water tank fixing by fitting nut 7; Described support ring 8 is positioned at the upper surface of described dummy ingot iron 1, and the internal diameter of described support ring 8 and the external diameter of described dummy ingot pipe 6 are kissed and joined; At the upper surface of described dummy ingot pipe 6 welding " U " type dummy ingot part 10, described " U " type dummy ingot part 10 is steel construction piece, water tank upper surface 55mm at the bottom of its apogee distance, and described " U " type dummy ingot part 10 forms adhesive spots.
Claims (1)
1. a non-corrosive metal slab stripping esr dummy device, described dummy device includes dummy ingot iron (1) and end water tank (3); It is characterized in that: described dummy ingot iron (1) is square steel plate, the dummy ingot iron described in two is symmetricly set on water tank upper surface, end arranged on left and right sides, and described dummy ingot iron (1) has center hole, and the outside dimension of Circularhole diameter and dummy ingot pipe etc. are large; Be provided with dummy ingot pipe (6), described dummy ingot pipe (6) is hollow structure, be communicated with by dummy ingot transverse tube (9) after the dummy ingot pipe described in two be communicated with cooling water system is each passed through end water tank arranged on left and right sides, form cooling water channel, described dummy ingot transverse tube (9) distance water tank upper surface, end 35-45mm is high, and described dummy ingot transverse tube forms adhesive spots; Dummy ingot pipe (6) described in two, through the center hole of corresponding dummy ingot iron, is fixed by sustained ring (8) and two dummy ingot iron (1); The outside, lower end of described dummy ingot pipe is helicitic texture, makes dummy ingot iron (1), dummy ingot pipe (6) relative fixing with the position of end water tank (3) by fitting nut (7); Described sustained ring (8) is positioned at the upper surface of described dummy ingot iron (1) and is enclosed within described dummy ingot pipe (6), and described sustained ring (8) and dummy ingot iron (1), dummy ingot pipe (6) are welded to connect; In the upper surface of described dummy ingot pipe (6) welding " U " type dummy ingot part (10), described " U " type dummy ingot part (10) are steel construction piece, water tank upper surface 50-55mm at the bottom of its apogee distance, and described " U " type dummy ingot part (10) forms adhesive spots.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410405578.5A CN104141052B (en) | 2014-08-18 | 2014-08-18 | Non-corrosive metal slab stripping esr dummy device |
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|---|---|---|---|
| CN201410405578.5A CN104141052B (en) | 2014-08-18 | 2014-08-18 | Non-corrosive metal slab stripping esr dummy device |
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| CN104141052A CN104141052A (en) | 2014-11-12 |
| CN104141052B true CN104141052B (en) | 2016-04-27 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1693102A1 (en) * | 1990-01-16 | 1991-11-23 | Тульский Научно-Исследовательский Технологический Институт | Electro-slag smelting apparatus |
| CN2241697Y (en) * | 1996-03-26 | 1996-12-04 | 杨兆顺 | Electroslag hollow refining smelting equipment for rolling stainless seamless steel tube by hollow smelting operation |
| CN101003859A (en) * | 2007-01-18 | 2007-07-25 | 东北大学 | Plate blank electroslag furnace |
| CN201529758U (en) * | 2009-07-21 | 2010-07-21 | 武汉大西洋连铸设备工程有限责任公司 | Water-cooling dummy ingot head apparatus with water-cooling directional freezing casting blank end-face |
| CN201545898U (en) * | 2009-10-21 | 2010-08-11 | 宝山钢铁股份有限公司 | Dummy ingot composition plate for electroslag remelting |
| CN202606840U (en) * | 2012-03-22 | 2012-12-19 | 金川集团股份有限公司 | Double-electrode semi-continuous electroslag remelting and casting device |
| CN204080054U (en) * | 2014-08-18 | 2015-01-07 | 洛阳双瑞特种装备有限公司 | Non-corrosive metal slab stripping esr dummy device |
-
2014
- 2014-08-18 CN CN201410405578.5A patent/CN104141052B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1693102A1 (en) * | 1990-01-16 | 1991-11-23 | Тульский Научно-Исследовательский Технологический Институт | Electro-slag smelting apparatus |
| CN2241697Y (en) * | 1996-03-26 | 1996-12-04 | 杨兆顺 | Electroslag hollow refining smelting equipment for rolling stainless seamless steel tube by hollow smelting operation |
| CN101003859A (en) * | 2007-01-18 | 2007-07-25 | 东北大学 | Plate blank electroslag furnace |
| CN201529758U (en) * | 2009-07-21 | 2010-07-21 | 武汉大西洋连铸设备工程有限责任公司 | Water-cooling dummy ingot head apparatus with water-cooling directional freezing casting blank end-face |
| CN201545898U (en) * | 2009-10-21 | 2010-08-11 | 宝山钢铁股份有限公司 | Dummy ingot composition plate for electroslag remelting |
| CN202606840U (en) * | 2012-03-22 | 2012-12-19 | 金川集团股份有限公司 | Double-electrode semi-continuous electroslag remelting and casting device |
| CN204080054U (en) * | 2014-08-18 | 2015-01-07 | 洛阳双瑞特种装备有限公司 | Non-corrosive metal slab stripping esr dummy device |
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Address after: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
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