CN100592059C - Slab casting machine double-cold spray nozzle thermal state characteristic test plate type casting blank heating means - Google Patents
Slab casting machine double-cold spray nozzle thermal state characteristic test plate type casting blank heating means Download PDFInfo
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- CN100592059C CN100592059C CN200710188517A CN200710188517A CN100592059C CN 100592059 C CN100592059 C CN 100592059C CN 200710188517 A CN200710188517 A CN 200710188517A CN 200710188517 A CN200710188517 A CN 200710188517A CN 100592059 C CN100592059 C CN 100592059C
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- heating
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- casting blank
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Abstract
The invention belongs to the field of a metallurgy equipment, in particular to a heating method of a thermal state characteristic testing panel-type casting blank of a secondary cooling nozzle of a slab continuous caster. The invention is characterized in that a sensor (6) is fixed on a heated casting blank (8); a medium frequency heating unit shifting mechanism (4) is connected with a panel-typemedium frequency heating unit (5); the medium frequency heating unit shifting mechanism (4) is adopted to shift the flat medium frequency heating unit (5) to the upper surface of the casting blank andthe sensor (6); a started medium frequency power supply (7) and a control system (9) control the medium frequency heating unit (5) to heat the heating casting blank (8) so that the heating casting blank (8) is heated uniformly to more than 1000 celsius degrees; the flat medium frequency heating unit (5) stops heating and then the medium frequency heating unit shifting mechanism (4) shifts out theflat medium frequency heating unit (5); the temperature of the heated casting blank (8) is outputted by the sensor (6). The invention can heat the casting blank to more than 1000 celsius degrees in ashort time, with rapid heating speed, high heating temperature and good heating uniformity.
Description
Technical field
The invention belongs to field of metallurgical equipment, particularly a kind of slab casting machine di-cold spray nozzle thermal state characteristic test plate type casting blank heating means.
Background technology
The characteristic of research slab caster two cold nozzle has significance to improving slab quality, especially to the thermal characteristic particular importance of nozzle.When research spray nozzle thermal state characteristic, approaching with the course of work of conticaster as far as possible in order to make test process, in spray nozzle thermal state characteristic test, the test strand is elected rectangle as and is had certain thermal capacity.Because test request is installed the sensor of temperature real-time measurement on strand, therefore, general heating means can't satisfy the heat request that adds of test strand.
The hot performance research of nozzle, a committed step is exactly real-time experiment with measuring strand variation of temperature in cooling procedure.Traditional method is the test strand to be placed on be heated to test temperature (generally at 1000 ℃～1350 ℃) in the heating furnace, after temperature, takes out strand in stove, transports on the testing table, carries out the testing research of relevant item.Because of the test strand temperature of taking out in the heating furnace generally all more than 1000 ℃, it is very difficult high-precision temperature sensor to be installed under high like this temperature, and the thermograde of test strand will change in installation process, directly influence the accuracy of spray nozzle thermal state performance test.Because the heating to the test strand that installs sensor never is resolved, this has restricted the progress of the hot performance experimental study work of nozzle to a great extent.
Summary of the invention
The purpose of this invention is to provide a kind of slab casting machine di-cold spray nozzle thermal state characteristic test plate type casting blank heating means, strand is heated to the difficult taking-up in back more than 1000 ℃ in the process of the test so that solve, and deposits; The problem that temperature loss is big.
For achieving the above object, technical scheme of the present invention is: design a kind of slab casting machine di-cold spray nozzle thermal state characteristic test plate type casting blank heating means, it is characterized in that: it comprises intermediate frequency power supply 7, flat heating in medium frequency unit 5, heating in medium frequency cell moving mechanism 4, be fixed with sensor 6 being heated strand 8, heating in medium frequency cell moving mechanism 4 is connected with flat heating in medium frequency unit 5, by heating in medium frequency cell moving mechanism 4 flat heating in medium frequency unit 5 is moved to strand and sensor 6 upper surfaces; The intermediate frequency power supply 7 of Qi Donging then, 8 heating of the control system 95 pairs of heating in control heating in medium frequency unit strands, heating strand 8 is heated to more than 1000 ℃ equably, 5 heating of flat heating in medium frequency unit stop, heating in medium frequency cell moving mechanism 4 shifts out flat heating in medium frequency unit 5, and heating strand 8 temperature are by sensor 6 outputs.
Described heating strand 8 is from beginning to be heated to averaging time more than 1000 ℃ at 20～30min.
Described flat heating in medium frequency unit 5 moves to strand and the about 3-7mm of sensor 6 upper surfaces.
Described heating in medium frequency cell moving mechanism 4 comprises frame 10, transversely underbeam 12, transversely underbeam bracing frame 13, movable support body 14, boom 15, motor reducer 1, shaft coupling 2, feed screw nut 3 and track roller 11 at least, frame 10 is a frame body, and the frame body upper end is by transversely underbeam bracing frame 13 and movable support body 14 support; Transversely in the underbeam bracing frame 13 track roller 11 is arranged, track roller 11 is connected with flat heating in medium frequency unit 5 by boom 15, transversely underbeam bracing frame 13 is fixed with motor reducer 1, motor reducer 1 is connected movable support body 14 by shaft coupling 2 with feed screw nut 3 makes movable support body 14 move forward and backward along the leading screw in the feed screw nut 3, and the flat heating in medium frequency unit 5 that drives movable support body 14 supports moves.
Principle of work of the present invention is: heating unit is a movably flat heating unit, during heating heating unit being moved to and being heated strand is that about 3-7mm place is gone up on the surface, the high precision measuring temperature sensor is installed in the strand from the strand lower surface, it is motionless that strand is fixed on test position, after heating unit puts in place, begin to test the temperature variation of strand in the heating process by temperature sensor monitors by intermediate frequency power supply control heating unit to the heating of test strand.Be heated to test temperature (test temperature reaches as high as 1350 ℃), intermediate frequency power supply control heating unit stops heating, and travel mechanism shifts out heating unit, and strand begins to test accordingly.
Advantage of the present invention is: be fixed with sensor 6 being heated strand 8, travel mechanism 4 is connected with flat heating unit 5, by travel mechanism 4 flat heating unit 5 is moved to strand and sensor 6 upper surfaces; The intermediate frequency power supply 7 of Qi Donging then, 8 heating of the control system 95 pairs of heating in control heating in medium frequency unit strands, heating strand 8 is heated to more than 1000 ℃ equably, travel mechanism 4 shifts out flat heating in medium frequency unit 5 then, the temperature loss of heating strand 8 (test strand) is unaffected, has improved heating strand 8 (test strand) variation of temperature in cooling procedure greatly.It can be heated to strand more than 1000 ℃ at short notice, and its firing rate is fast, the heating-up temperature height, and heating uniformity is good.
Description of drawings
The invention will be further described below in conjunction with the embodiment accompanying drawing.
Fig. 1 is the embodiment of the invention 1 structural representation.
Among the figure: 1, motor reducer; 2, shaft coupling; 3, feed screw nut; 4, heating in medium frequency cell moving mechanism; 5, flat heating in medium frequency unit; 6, sensor; 7, intermediate frequency power supply; 8, heating strand; 9, control system; 10, frame; 11, track roller; 12, underbeam transversely; 13, underbeam bracing frame transversely; 14, movable support body; 15, boom.
Embodiment
As shown in Figure 1, comprise intermediate frequency power supply 7, flat heating in medium frequency unit 5, heating in medium frequency cell moving mechanism 4, be fixed with sensor 6 being heated strand 8, travel mechanism 4 is connected with flat heating unit 5, by travel mechanism 4 flat heating unit 5 is moved to strand and the about 5mm of sensor 6 upper surfaces place, the intermediate frequency power supply 7 of Qi Donging then, 8 heating of the control system 95 pairs of heating in control heating in medium frequency unit strands are heated to more than 1000 ℃ heating strand 8 equably, apace.
Heating in medium frequency cell moving mechanism 4 comprises frame 10, transversely underbeam 12, transversely underbeam bracing frame 13, movable support body 14, boom 15, motor reducer 1, shaft coupling 2, feed screw nut 3 and track roller 11 at least, frame 10 is a frame body, and the frame body upper end is by transversely underbeam bracing frame 13 and movable support body 14 support; Transversely in the underbeam bracing frame 13 track roller 11 is arranged, track roller 11 is connected with flat heating in medium frequency unit 5 by boom 15, transversely underbeam bracing frame 13 is fixed with motor reducer 1, motor reducer 1 is connected movable support body 14 by shaft coupling 2 with feed screw nut 3 makes movable support body 14 move forward and backward along the leading screw in the feed screw nut 3, the flat heating in medium frequency unit 5 that drives movable support body 14 supports moves, by heating in medium frequency cell moving mechanism 4 flat heating in medium frequency unit 5 is moved to strand and the about 5mm of sensor 6 upper surfaces place, the intermediate frequency power supply 7 of Qi Donging then, control system 9 is according to the electric current of the testing requirements coupling intermediate frequency power supply that is heated strand 8, control the heating in medium frequency unit to 8 heating of heating strand, thereby make the test strand equably, be heated to apace more than 1000 ℃.
During heating, flat heating in medium frequency unit 5 moved to be heated strand 8 surface and go up about 5mm places, high precision measuring temperature sensor 6 is fixed at heating strand 8 lower surfaces, it is motionless that heating strand 8 is fixed on test position, flat heating in medium frequency unit 5 is behind heating strand 8, begin the heating of test strand by intermediate frequency power supply control heating unit, can be in the heating process by the temperature variation of temperature sensor 6 monitoring heating strands 8 (test strand).Be heated to 1000 ℃ of test temperatures (test temperature reaches as high as 1350 ℃), unit 5 heating of 7 pairs of flat heating in medium frequency of control system 9 control intermediate frequency power supplies stop, heating in medium frequency cell moving mechanism 4 shifts out flat heating in medium frequency unit 5, and heating strand 8 (test strand) begins to test accordingly.In the process of the test heating strand 8 (test strand) be heated to 1000 ℃ or more than, 5 heating of flat heating in medium frequency unit stop, heating in medium frequency cell moving mechanism 4 shifts out flat heating in medium frequency unit 5, the temperature loss of heating strand 8 (test strand) is unaffected, has improved heating strand 8 (test strand) variation of temperature in cooling procedure greatly.
Intermediate frequency power supply 7 of the present invention adopts the control of digitizing integrated circuit, and zero-pressure frequency sweep Starting mode is reliable, stable.Line design adopts the blocking design, and each unit all has duty to show easy care.Current closed-loop, energy output is stable, effectively ensures test slab heating temperature consistance, can directly start under the power of having set, after this function can make shutdown, does not need artificial adjusting when starting shooting again, can guarantee heating-up temperature unanimity heat time heating time.The automatic impedance regulatory function can constantly detect the heating unit variation inductance in the intelligent control system, constantly regulates the intermediate frequency power supply parameter, thereby equipment is in optimum Working always, therefore, plant efficiency height, economize on electricity obviously, operate steadily reliable.Flat heating in medium frequency unit 5 is that the lead with the conducting electric current of intermediate frequency runs on one plane according to certain rules, and heat to it by the magnetic flux that are heated in the strand 8 in the one side magnetic field on the plane.Changed common heating in medium frequency coil and must be circle, needed to be heated object and wrap in wherein type of heating.Created a kind of new type of heating.
Claims (4)
1, slab casting machine di-cold spray nozzle thermal state characteristic test plate type casting blank heating means, it is characterized in that: it comprises intermediate frequency power supply (7), flat heating in medium frequency unit (5), heating in medium frequency cell moving mechanism (4), be fixed with sensor (6) being heated strand (8), heating in medium frequency cell moving mechanism (4) is connected with flat heating in medium frequency unit (5), by heating in medium frequency cell moving mechanism (4) flat heating in medium frequency unit (5) is moved to strand and sensor (6) upper surface; The intermediate frequency power supply of Qi Donging (7) then, control system (9) control heating in medium frequency unit (5) is to heating strand (8) heating, heating strand (8) is heated to more than 1000 ℃ equably, flat heating in medium frequency unit (5) heating stops, heating in medium frequency cell moving mechanism (4) shifts out flat heating in medium frequency unit (5), and heating strand (8) temperature is exported by sensor (6).
2, slab casting machine di-cold spray nozzle thermal state characteristic test plate type casting blank heating means according to claim 1 is characterized in that: described heating strand (8) is from beginning to be heated to averaging time more than 1000 ℃ at 20～30min.
3, slab casting machine di-cold spray nozzle thermal state characteristic test plate type casting blank heating means according to claim 1 is characterized in that: described flat heating in medium frequency unit (5) moves to and is heated strand (8) upper surface 3-7mm.
4, slab casting machine di-cold spray nozzle thermal state characteristic test plate type casting blank heating means according to claim 1, it is characterized in that: described heating in medium frequency cell moving mechanism (4) comprises frame (10), transversely underbeam (12), transversely underbeam bracing frame (13), movable support body (14), boom (15), motor reducer (1), shaft coupling (2), feed screw nut (3) and track roller (11) at least, frame (10) is a frame body, and the frame body upper end is by transversely underbeam bracing frame (13) and movable support body (14) support; Transversely in the underbeam bracing frame (13) track roller (11) is arranged, track roller (11) is connected with flat heating in medium frequency unit (5) by boom (15), transversely underbeam bracing frame (13) is fixed with motor reducer (1), motor reducer (1) is connected movable support body (14) by shaft coupling (2) with feed screw nut (3) makes movable support body (14) move forward and backward along the leading screw in the feed screw nut (3), and the flat heating in medium frequency unit (5) that drives movable support body (14) support moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710188517A CN100592059C (en) | 2007-12-20 | 2007-12-20 | Slab casting machine double-cold spray nozzle thermal state characteristic test plate type casting blank heating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710188517A CN100592059C (en) | 2007-12-20 | 2007-12-20 | Slab casting machine double-cold spray nozzle thermal state characteristic test plate type casting blank heating means |
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| Publication Number | Publication Date |
|---|---|
| CN101182971A CN101182971A (en) | 2008-05-21 |
| CN100592059C true CN100592059C (en) | 2010-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710188517A Expired - Fee Related CN100592059C (en) | 2007-12-20 | 2007-12-20 | Slab casting machine double-cold spray nozzle thermal state characteristic test plate type casting blank heating means |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099319A (en) * | 1993-04-02 | 1995-03-01 | 株式会社东芝 | Induction heating system for heating edges of plate material |
| US6173755B1 (en) * | 1996-05-23 | 2001-01-16 | Aluminum Company Of America | Nozzle for continuous slab casting |
| CN1333573A (en) * | 2000-07-14 | 2002-01-30 | 古河电池株式会社 | Method and device for heating convex edge of polar board of lead accumulator |
| CN2806496Y (en) * | 2005-06-30 | 2006-08-16 | 宝山钢铁股份有限公司 | Medium frequency heating and fastening device for plate samples |
-
2007
- 2007-12-20 CN CN200710188517A patent/CN100592059C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099319A (en) * | 1993-04-02 | 1995-03-01 | 株式会社东芝 | Induction heating system for heating edges of plate material |
| US6173755B1 (en) * | 1996-05-23 | 2001-01-16 | Aluminum Company Of America | Nozzle for continuous slab casting |
| CN1333573A (en) * | 2000-07-14 | 2002-01-30 | 古河电池株式会社 | Method and device for heating convex edge of polar board of lead accumulator |
| CN2806496Y (en) * | 2005-06-30 | 2006-08-16 | 宝山钢铁股份有限公司 | Medium frequency heating and fastening device for plate samples |
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| Publication number | Publication date |
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| CN101182971A (en) | 2008-05-21 |
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Owner name: CHINA NATIONAL HEAVY MACHINERY RESEARCH INSTITUTE Free format text: FORMER NAME: CHINA HEAVY MACHINERY INSTITUTE |
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Address after: 710032 Shaanxi city in Xi'an province Xin Jiamiao Xi'an Heavy Machinery Research Institute Patentee after: CHINA NATIONAL HEAVY MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 710032 Shaanxi city in Xi'an province Xin Jiamiao Xi'an Heavy Machinery Research Institute Patentee before: China National Heavy Machinery Research Institute Co.,Ltd. Address after: 710032 Shaanxi city in Xi'an province Xin Jiamiao Xi'an Heavy Machinery Research Institute Patentee after: China National Heavy Machinery Research Institute Co.,Ltd. Address before: 710032 Shaanxi city in Xi'an province Xin Jiamiao Xi'an Heavy Machinery Research Institute Patentee before: China National Heavy Machinery Research Institute Co.,Ltd. |
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Granted publication date: 20100224 Termination date: 20171220 |