CN102102145B - Method for measuring heating temperature of hot-charged blank - Google Patents
Method for measuring heating temperature of hot-charged blank Download PDFInfo
- Publication number
- CN102102145B CN102102145B CN200910248753.3A CN200910248753A CN102102145B CN 102102145 B CN102102145 B CN 102102145B CN 200910248753 A CN200910248753 A CN 200910248753A CN 102102145 B CN102102145 B CN 102102145B
- Authority
- CN
- China
- Prior art keywords
- hot
- steel billet
- temperature
- heating
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention discloses a method for measuring the heating temperature of a hot-charged blank, which solves the problem that the heating temperature cannot be measured in the heating process of the hot-charged blank. The invention provides a method for measuring the heating temperature in the heating process of the hot-charged blank, which provides a data basis for the adjustment of a heating system of a heating furnace hot-charged with the blank. A testing cold steel billet (1) and high-temperature-resistant testing equipment (4) are provided. The method is characterized in that: the drilled testing cold steel billet (1) is connected with the wrapped high-temperature-resistant testing equipment (4) and is heated by the heating furnace (6) to form a testing hot steel billet (7), the testing hot steel billet (7) is cooled to a temperature close to the temperature for producing the hot-charged blank and is charged into the heating furnace (6) again, and the temperature in the heating process is measured. By the method, the data basis is provided for the establishment and adjustment of the heating system of the hot-charged blank, so that the aim of saving energy, reducing consumption and improving heating quality are fulfilled.
Description
Technical field
The present invention relates to metallurgical thermal testing field, relate in particular to a kind of method of measuring heating temperature of hot-charged blank.
Background technology
Along with the increasingly mature of continuous casting technology and development, process furnace blank hot charging becomes a reality, but when the heating cycle of process furnace should be with cold charge after hot charging, there is very large difference, if it is bad that heating cycle is adjusted, not only the energy-saving potential of hot charging is not in full use, and causes the waste of the energy, also can affect the heating quality of steel billet, further influence of rolled quality, affects the lumber recovery of steel billet.Evaluate the quality of heating cycle, be according to indexs such as heating steel billet quality and energy consumptions.Billet heating temperature and whether meet the demands and indicating the quality of heating quality with the plate temperature difference.
No matter be non-contact measurement or contact type measurement, their weak point is: measurement be the surface temperature of hot charging steel billet, can not truly reflect the temperature-rise period of steel billet, actual Heating temperature and with the plate temperature difference.And the accuracy of contactless measurement is also subject to the impact of the many factors such as angle between metering facility and measured point, distance, surrounding environment; Indivedual manufacturers adopt the method for mathematical model to simulate.Therefore, process furnace blank is realized after hot charging, and on-the-spot related personnel often gropes by rule of thumb, the just change a little on the basis of heating cycle when cold charge having, have even also continue to use cold charge time heating cycle.
Along with improving constantly of process furnace blank hot charging rate, how the Heating temperature of Measurement accuracy hot charging base is to adjust, improve the key point of heating cycle.
Summary of the invention
Technical problem to be solved by this invention is to solve the hot charging base problem that Heating temperature cannot be measured in heat-processed, a kind of method that can measure hot charging base Heating temperature in heat-processed is provided, for realizing the adjustment of the process furnace heating cycle of blank hot charging, provides data basis.
In order to realize foregoing invention object, technical scheme of the present invention is:
Comprise the cold steel billet of test and high temperature resistant testing apparatus, it is characterized in that: the cold steel billet of test of processing through boring is connected with the high temperature resistant testing apparatus through wrapping, through process furnace, be heated into the hot steel billet of test again, be cooled to produce the close temperature of hot charging base after again pack process furnace into, carry out heating process temperature measurement.
Test cold steel billet with the thermometer hole of different depths, thermometer hole is 3, thermometer hole φ 10～φ 12mm.Thermometric galvanic couple inserts in thermometer hole and carries out thermometric, for avoiding thermometric galvanic couple to be moved in test base moving process and cause the inaccurate phenomenon of take off data, is installed with fixed ring especially at thermometer hole top edge 1～2mm place, for fixing galvanic couple.
Testing cold steel billet is connected by thermometric galvanic couple with high temperature resistant testing apparatus.The thick zirconium white crystalloid fibrefelt wrapping of one deck 5mm for thermometric galvanic couple, more separately overlap one deck quartz socket tube, tamp with zirconium white crystalloid fibrefelt in the space of quartz socket tube and thermometric galvanic couple, prevents that high-temperature flue gas and air are oxidized galvanic couple.The high temperature oxidation resisting zirconium crystalloid fibrefelt that six layers～seven layers 20mm of high temperature resistant testing apparatus outsourcing are thick, surrounding at zirconium white crystalloid fibrefelt wrapping layer is wrapped up with containing zircon ceramic fibre module again, prevent that air or furnace gas from being invaded by the space of zirconium white crystalloid fibrefelt wrapping layer, guarantee that thermometric galvanic couple and high temperature resistant testing apparatus are under the environment of 20～1350 ℃, through the process of heating-cooling-reheat, can work.
High temperature resistant testing apparatus outsourcing high-temperature resistant thermal insulating material carries out insulation, guarantees that thermometric galvanic couple and high temperature resistant testing apparatus all can work under the environment of 20～1350 ℃.
Test hot steel billet and in air, naturally cool to 500～900 ℃.
Present method can obtain the heating curve of hot charging base in heat-processed, understands the true Heating temperature of steel billet and with the plate temperature difference.To the formulation of hot charging base heating cycle, adjustment, provide data basis, thus the object that reaches energy-saving and cost-reducing, improves heating quality.
Accompanying drawing explanation
Fig. 1 is that the present invention measures heating temperature of hot-charged blank process schematic diagram;
Fig. 2 is the A portion enlarged view of Fig. 1;
Fig. 3 is the B portion enlarged view of Fig. 1;
Fig. 4 is the C portion enlarged view of Fig. 1;
Wherein, 1-tests cold steel billet, 2-thermometer hole, 3-thermometric galvanic couple, testing apparatus that 4-is high temperature resistant, 5-high-temperature resistant thermal insulating material, 6-process furnace, 7-tests hot steel billet, 8-fixed ring, 9-thermo wires, 10-is containing zircon ceramic fibre module, 11-zirconium white crystalloid fiber, 12-quartz socket tube.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further illustrated:
As shown in Figure 1: take certain process furnace as example, the production hot charging base that process furnace 6 blank used is 135 * 1650 * 15000mm.First prepare one with the cold steel billet 1 of test of producing the same specification of hot charging base, material, on the cold steel billet 1 of test, at least get 3 points, the thermometer hole 2 that to bore respectively 3 different depthss, diameter be 10mm, as test point, is that the point that the first test point, 67.5mm are dark is that the point that the second test point, 125mm are dark is the 3rd test point (locating to record respectively steel billet upper surface, steel billet center and steel billet underlaying surface temperature at these 3) apart from the dark point of steel billet upper surface 10mm.On width, the distance between test hole 2 is 250～300mm; In the longitudinal direction, to take that to test cold steel billet 1 center be symmetric points, according to the location positioning of process furnace 6 water beams, guarantee that the temperature of test point can represent that steel billet is in the same plate temperature difference of length, width, and can reflect steel billet temperature in water beam and non-Shui Liang position in heat-processed again.
As shown in Figure 2: it is the thermo wires of φ 1.5mm, the NiCr-NiSi of overcoat diplopore porcelain bead that thermometric galvanic couple 3 is installed diameter, thermometric galvanic couple 3 is inserted to test hole 2, in thermometer hole 2 top edge 1～2mm places design, be welded and fixed circle 8, and with the thermo wires 9 of φ 1.5mm, on thermometric galvanic couple, be wound around a circle thermometric galvanic couple 3 can not be moved in thermometer hole 2, thermometric galvanic couple is connected with high temperature resistant online temperature measuring device 4.
As shown in Figure 4: zirconium white crystalloid fibrefelt 11 wrappings that thermometric galvanic couple 3 use one deck 5mm are thick, more separately overlap one deck quartz socket tube 12, tamp with zirconium white crystalloid fibrefelt 11 in the space of quartz socket tube 12 and thermometric galvanic couple 3, prevents that high-temperature flue gas and air are oxidized galvanic couple.
As shown in Figure 3: the high temperature oxidation resisting zirconium crystalloid fibrefelt 11 that six layers～seven layers 20mm of high temperature resistant testing apparatus 4 outsourcing are thick, in the surrounding of zirconium white crystalloid fibrefelt wrapping layer, with containing zircon ceramic fibre module 10, wrap up again.The cold steel billet 1 of test, thermometric galvanic couple 3 and high temperature resistant online temperature measuring device 4 are sent into the interior heating of process furnace 6.After testing cold steel billet 1 and coming out of the stove, obtain testing hot steel billet 7, return to stock ground, in the hot steel billet 7 handling processes of test, the thermometric galvanic couple 3 of installing and high temperature resistant online temperature measuring device 4 maintain the original state.Test hot steel billet 7 and in air, naturally cool to 700 ℃, back into process furnace 6, heat, record the heating curve of above-mentioned three test point, when steel billet is come out of the stove, the first test point temperature is 1237 ℃, the second test point temperature is 1211 ℃, and the 3rd test point temperature is 1223 ℃.
Claims (2)
1. a method of measuring heating temperature of hot-charged blank, comprise test cold steel billet (1) and high temperature resistant testing apparatus (4), it is characterized in that: by through boring processing, the cold steel billet of test (1) with the thermometer hole (2) of different depths is connected by thermometric galvanic couple (3) with the high temperature resistant testing apparatus (4) through wrapping high-temperature resistant thermal insulating material (5), test cold steel billet (1), thermometric galvanic couple (3) and high temperature resistant testing apparatus (4) enter process furnace (6) and are heated into test hot steel billet (7), be cooled to produce the close temperature of hot charging base after again pack process furnace (6) into, carry out heating process temperature measurement, the hot steel billet of described test (7) is cooled to 500～900 ℃, thermometer hole (2) top edge is installed with fixed ring (8), thermometric galvanic couple (3) is first used zirconium white crystalloid fibrefelt (11) wrapping, then overlaps quartz socket tube (12), high-temperature resistant thermal insulating material (5) is high temperature oxidation resisting zirconium crystalloid fibrefelt (11) and contains zircon ceramic fibre module (10).
2. measure according to claim 1 the method for heating temperature of hot-charged blank, it is characterized in that: thermometer hole (2) is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910248753.3A CN102102145B (en) | 2009-12-22 | 2009-12-22 | Method for measuring heating temperature of hot-charged blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910248753.3A CN102102145B (en) | 2009-12-22 | 2009-12-22 | Method for measuring heating temperature of hot-charged blank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102102145A CN102102145A (en) | 2011-06-22 |
| CN102102145B true CN102102145B (en) | 2014-03-12 |
Family
ID=44155211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910248753.3A Active CN102102145B (en) | 2009-12-22 | 2009-12-22 | Method for measuring heating temperature of hot-charged blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102102145B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021312B (en) * | 2009-09-22 | 2013-08-21 | 上海宝信软件股份有限公司 | Scheduling method of hot rolling heating furnace energy based on heat balance |
| CN104713657A (en) * | 2015-02-02 | 2015-06-17 | 北京科技大学 | Measuring method for determining actual inner temperature of steel block in resistance furnace |
| CN104864973B (en) * | 2015-06-02 | 2018-01-09 | 安徽工业大学 | A kind of even buried formula temperature testing method of small dimension square billet high-temperature heating process |
| CN108318149A (en) * | 2017-01-18 | 2018-07-24 | 无锡飞而康精铸工程有限公司 | A kind of high-precision titanium ingot temperature hysteresis measurement method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328887A (en) * | 2000-06-21 | 2002-01-02 | 中国科学院沈阳金属研究所 | On-line measurement method of internal temp. of rolled plate and its special-purpose system |
| CN2645056Y (en) * | 2003-03-26 | 2004-09-29 | 武汉钢铁(集团)公司 | Hot-rolled sheet scanning temperature measurement apparatus before entering furnace |
| CN101487745A (en) * | 2009-02-18 | 2009-07-22 | 中冶赛迪工程技术股份有限公司 | Radiant panel thermometer detection apparatus and method for continuous annealing furnace |
-
2009
- 2009-12-22 CN CN200910248753.3A patent/CN102102145B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328887A (en) * | 2000-06-21 | 2002-01-02 | 中国科学院沈阳金属研究所 | On-line measurement method of internal temp. of rolled plate and its special-purpose system |
| CN2645056Y (en) * | 2003-03-26 | 2004-09-29 | 武汉钢铁(集团)公司 | Hot-rolled sheet scanning temperature measurement apparatus before entering furnace |
| CN101487745A (en) * | 2009-02-18 | 2009-07-22 | 中冶赛迪工程技术股份有限公司 | Radiant panel thermometer detection apparatus and method for continuous annealing furnace |
Non-Patent Citations (3)
| Title |
|---|
| 张宇等.蓄热式加热炉钢坯温度均匀性的技术分析.《冶金能源》.2005,第24卷(第2期),37-40. |
| 朱永祥等.连铸坯热送热装轧制技术在重钢高线厂生产中的应用.《重庆科技学院学报（自然科学版）》.2009,第11卷(第4期),60-62. * |
| 蓄热式加热炉钢坯温度均匀性的技术分析;张宇等;《冶金能源》;20050331;第24卷(第2期);37-40 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102102145A (en) | 2011-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101514896B (en) | Convertor lining thickness online testing method and device thereof | |
| CN102102145B (en) | Method for measuring heating temperature of hot-charged blank | |
| CN102935496B (en) | A kind of portable continuous casting billet surface temperature measurement device and temp measuring method | |
| CN102012382B (en) | Heat conductivity coefficient quick test device and method of vacuum insulating board | |
| CN104864973B (en) | A kind of even buried formula temperature testing method of small dimension square billet high-temperature heating process | |
| CN100552371C (en) | A kind of hot rolling slab camber and sideslip on-line detection method | |
| CN102886500A (en) | Method and device for rapidly and accurately detecting and controlling baking temperature of ladle | |
| CN101293272A (en) | Apparatus for measuring continuous casting billet skin temperature and measuring method thereof | |
| CN104713657A (en) | Measuring method for determining actual inner temperature of steel block in resistance furnace | |
| CN104451037A (en) | Device and method for detecting temperature of RH refined liquid steel on line in real time | |
| Feng et al. | Online defect detection method and system based on similarity of the temperature field in the melt pool | |
| US10935320B2 (en) | Method for determining the state of a refractory lining of a metallurgical vessel for molten metal in particular | |
| Zaghloul et al. | High spatial resolution temperature profile measurements of solid-oxide fuel cells | |
| CN201828535U (en) | Device for rapidly testing heat conductivity of vacuum insulation panel | |
| CN103090984A (en) | Steel barrel wireless temperature measurement system free from external electricity and temperature measurement method thereof | |
| CN105463142B (en) | A kind of method that molten iron temperature measures in blast furnace crucibe | |
| CN204167442U (en) | Lithium battery group temperature monitoring system | |
| CN204188120U (en) | The measurement mechanism of the installation of TC degree of depth under the condition of high temperature | |
| CN102952920B (en) | Method for measuring etching thickness of working surface of converter liner | |
| CN103353466A (en) | Measuring method for heat flux density of solid metal | |
| CN111551580B (en) | Building enclosure structure heat transfer coefficient field test equipment and method | |
| CN201489377U (en) | Temperature control device for high melting point melt | |
| CN204490918U (en) | Blast furnace temperature intelligent monitoring system | |
| CN103031397A (en) | On-line detection model for furnace temperature of blast furnace | |
| CN202420704U (en) | Molten metal temperature detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |