CN102225433A - Method for measuring and calibrating surface temperature of steel plate - Google Patents
Method for measuring and calibrating surface temperature of steel plate Download PDFInfo
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- CN102225433A CN102225433A CN2011100787193A CN201110078719A CN102225433A CN 102225433 A CN102225433 A CN 102225433A CN 2011100787193 A CN2011100787193 A CN 2011100787193A CN 201110078719 A CN201110078719 A CN 201110078719A CN 102225433 A CN102225433 A CN 102225433A
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Abstract
The invention relates to a method for measuring and detecting the surface temperature of a steel plate, and is characterized by comprising a calibrating billet steel, two to three armored thermocouples, a paperless recording instrument and an infrared temperature measurement instrument calibrating device and comprising the steps of: i. welding a fixed piece at the surface center position of the billet steel in advance before a steel plate enters a normalizing furnace; ii. installing the armored thermocouples on the fixed piece; iii. sending the armored thermocouples back to the sixth heating section of the normalizing furnace along with the calibrated billet steel, heating at temperature of 1,100 DEG C and staying for 15 seconds, and discharging the calibrated billet steel along with the armored thermocouples; and iv. detecting the temperature of the calibrated billet steel by the infrared pyrometer and the armored thermocouples fixed on the steel plate at the outlet of the normalizing furnace in real time, wherein the signal output of the thermocouples and the signal output of the infrared pyrometer are simultaneously connected to the recording instrument to form a temperature measurement device for displaying record in real time and carrying out a data comparison test. The device is simple in structure, has low cost, is installed conveniently, and can be popularized and applied to comparison and calibration work on the surface temperature of moving billet steel similar a heating furnace.
Description
Technical field
The invention belongs to hot continuous-milling steel plate surface temperature detection method, be mainly used in the detection error of check infrared pyrometer.
Background technology
50 meters of the normalizing furnace furnace superintendents of stainless hot rolling mill; the heating of employing high coke mixed gas; be divided into 6 sections heating; burner is distributed in the furnace side; every section all has furnace temperature and coal gas, air mass flow to detect adjusting, distributes along its length at furnace roof 11 thermocouples have been installed, and measures 6 sections temperature in the stove; arm coal gas/air mass flow adopts orifice plate to measure and electric butterfly valve is regulated, and tandem ratio regulative mode is adopted in temperature and flow-control.Steel plate is transmitted as roller-way forward/reverse alternate-running propulsion mode in the stove.Heap(ed) capacity can heat 6 block plates in the stove, and normalizing furnace exports unidirectional roller-way partly the insulation cover, is provided with a radiant-energy thermometer apart from the position of outlet more than 1 meter, measures normalizing furnace outlet steel billet temperature.Whether the measurement temperature of radiant-energy thermometer is exactly the surface temperature of steel plate, does not also have ready-made detection method at present.
Summary of the invention
For whether the measurement of checking radiant-energy thermometer is exactly the surface temperature of steel plate, the invention provides surface of steel plate temperature survey method of calibration.
The present invention includes one on verification steel billet, 2～3 armoured thermocouples, recording instrument without paper and infrared radiation thermometer verifying attachments, its checking procedure is:
1, enters before the normalizing furnace in advance by verification billet surface center, weld 2～3 fixtures that are used to install armoured thermocouple side by side;
2, the verification steel billet carries out the heating process processing according to the normal heating rules after entering normalizing furnace, and the verification steel billet arrives the normalizing furnace outlet, armoured thermocouple is inserted into the fixture that is used to install armoured thermocouple that welds in advance;
3, armoured thermocouple is with counter the 6th section bringing-up section of sending normalizing furnace back to of verification steel billet, the 6th section bringing-up section that the verification steel billet rests on normalizing furnace continues the heating that heats up, the armoured thermocouple temperature rise to 1100 ℃ of tapping temperature values and be stabilized in 1100 ± 5 ℃ 15 seconds, the verification steel billet is come out of the stove simultaneously with armoured thermocouple;
4, the verification steel billet detects steel billet temperature by infrared pyrometer and the armoured thermocouple that is fixed on the steel plate simultaneously in real time in normalizing furnace outlet; thermocouple signal output and the output of infrared pyrometer signal are connected to recorder composition temperature measuring equipment simultaneously and show record in real time, carry out the data contrastive test.
The described fixture that is used to install armoured thermocouple is that internal diameter is that the steel loop of 14mm and steel pipe that internal diameter is 22mm are welded, steel loop be positioned at steel pipe below.
Described recording instrument without paper is arranged on outside the normalizing furnace.
Described infrared radiation thermometer is arranged on the outer steel billet outlet of normalizing furnace.
Before the test, the armoured thermocouple that test is used, a nothing recorder, online infrared pyrometer have carried out assay calibration according to the national verification rules.
Apparatus structure of the present invention is simple, and cost is low, and is easy for installation, can be applied to the comparison calibration operation of the mobile billet surface temperature of similar heating furnace.
The specific embodiment
Embodiment: the present invention includes 3 armoured thermocouples, recording instrument without paper and infrared radiation thermometer verifying attachment, its checking procedure is:
1, enters before the normalizing furnace in advance in verification billet surface center, weld 3 fixtures that are used to install armoured thermocouple side by side;
2, the experiment steel billet enters and carries out heating process according to the normal heating rules behind the normalizing furnace and handle, and the experiment steel billet arrives the normalizing furnace outlet, and armoured thermocouple is inserted into the fixture that is used to install armoured thermocouple in the welding in advance;
3, armoured thermocouple is with counter the 6th section bringing-up section of sending normalizing furnace back to of experiment steel billet, the 6th section bringing-up section that the experiment steel billet rests on normalizing furnace continues the heating that heats up, the armoured thermocouple temperature rise to 1100 ℃ of tapping temperature values and be stabilized in 1100 ± 5 ℃ 15 seconds, tested steel billet is come out of the stove simultaneously with armoured thermocouple;
4, the experiment steel billet detects steel billet temperature by infrared pyrometer and the armoured thermocouple that is fixed on the steel plate simultaneously in real time in normalizing furnace outlet; thermocouple signal output and the output of infrared pyrometer signal are connected to recorder composition temperature measuring equipment simultaneously and show record in real time; carry out the data contrastive test by the requirement of heating furnace technology, both differ less than measured value 1% to qualified.
The described fixture that is used to install armoured thermocouple is that internal diameter is that the steel loop of 14mm and steel pipe that internal diameter is 22mm are welded, steel loop be positioned at steel pipe below.
Described recording instrument without paper is arranged on outside the normalizing furnace.
Described infrared radiation thermometer is arranged on the outer steel billet outlet of normalizing furnace.
Illustrate:
After heating, the surface can form one deck oxide skin to the test steel billet at every turn, and for guarantee test can use repeatedly with steel billet, the steel pipe terminal of stationary heat galvanic couple end is not exclusively sealed, and reserves 2～3mm space approximately, so that the oxide in the cleaning guide pipe.
Claims (4)
1. surface of steel plate temperature survey method of calibration is characterized in that comprising verification steel billet, 2～3 armoured thermocouples, recording instrument without paper and infrared radiation thermometer verifying attachments, and its checking procedure is:
ⅰ, enter before the normalizing furnace, weld 2～3 fixtures that are used to install armoured thermocouple side by side in advance in verification billet surface center;
ⅱ, verification steel billet carry out the heating process processing according to the normal heating rules after entering normalizing furnace, and the verification steel billet arrives the normalizing furnace outlet, armoured thermocouple are inserted into the fixture that is used to install armoured thermocouple that welds in advance;
ⅲ, armoured thermocouple are with counter the 6th section bringing-up section of sending normalizing furnace back to of verification steel billet, the 6th section bringing-up section that the verification steel billet rests on normalizing furnace continues the heating that heats up, the armoured thermocouple temperature rise to 1100 ℃ of tapping temperature values and be stabilized in 1100 ± 5 ℃ 15 seconds, the verification steel billet is come out of the stove simultaneously with armoured thermocouple;
ⅳ, verification steel billet in the normalizing furnace outlet simultaneously by infrared pyrometer be fixed on the real-time detection check steel billet temperature of armoured thermocouple on the steel plate; thermocouple signal output and the output of infrared pyrometer signal are connected to recorder composition temperature measuring equipment simultaneously and show record in real time, carry out the data contrastive test.
2. surface of steel plate temperature checking method according to claim 1 is characterized in that the described fixture that is used to install armoured thermocouple is that internal diameter is that the steel loop of 14mm and steel pipe that internal diameter is 22mm are welded, steel loop be positioned at steel pipe below.
3. surface of steel plate temperature checking method according to claim 1 is characterized in that described recording instrument without paper is arranged on outside the normalizing furnace.
4. surface of steel plate temperature checking method according to claim 1 is characterized in that described infrared radiation thermometer is arranged on the outer verification steel billet outlet of normalizing furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110078719 CN102225433B (en) | 2011-03-30 | 2011-03-30 | Method for measuring and calibrating surface temperature of steel plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110078719 CN102225433B (en) | 2011-03-30 | 2011-03-30 | Method for measuring and calibrating surface temperature of steel plate |
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| CN102225433A true CN102225433A (en) | 2011-10-26 |
| CN102225433B CN102225433B (en) | 2012-12-26 |
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| CN 201110078719 Active CN102225433B (en) | 2011-03-30 | 2011-03-30 | Method for measuring and calibrating surface temperature of steel plate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028561A (en) * | 2014-06-18 | 2014-09-10 | 内蒙古包钢钢联股份有限公司 | Method for guaranteeing final-cooling temperature precision for steel plates |
| CN104028562A (en) * | 2014-06-05 | 2014-09-10 | 东北大学 | Method for measuring temperature change in magnesium alloy rolling process |
| CN105241581A (en) * | 2015-10-08 | 2016-01-13 | 中冶南方工程技术有限公司 | Temperature measurement, adjustment and calibration method and system for radiation pyrometer for continuous annealing furnace |
| CN107983782A (en) * | 2017-11-24 | 2018-05-04 | 山西太钢不锈钢股份有限公司 | The online quick method for checking lower surface quality on frame-type roller-way |
| CN108917960A (en) * | 2018-05-15 | 2018-11-30 | 首钢集团有限公司 | A kind of measuring device and method of billet heating temperature uniformity |
| CN109883170A (en) * | 2018-11-06 | 2019-06-14 | 邯郸钢铁集团有限责任公司 | A kind of Electro-galvanizing Production Line resistance and fingerprint resistance drying oven control method |
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| JPS63274827A (en) * | 1987-05-06 | 1988-11-11 | Kawasaki Steel Corp | Measuring method for surface temperature of heated steel piece |
| CN101301661A (en) * | 2008-06-20 | 2008-11-12 | 浙江大学 | Device for measuring temperature of hot-rolled strip steel |
| CN101869916A (en) * | 2009-04-22 | 2010-10-27 | 宝山钢铁股份有限公司 | Band steel non-contact temperature measuring equipment of hot rolling layer cold area and control method thereof |
| WO2011025139A2 (en) * | 2009-08-27 | 2011-03-03 | 현대제철 주식회사 | Temperature control device for a rolling finishing mill and a method for the same |
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2011
- 2011-03-30 CN CN 201110078719 patent/CN102225433B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS63274827A (en) * | 1987-05-06 | 1988-11-11 | Kawasaki Steel Corp | Measuring method for surface temperature of heated steel piece |
| CN101301661A (en) * | 2008-06-20 | 2008-11-12 | 浙江大学 | Device for measuring temperature of hot-rolled strip steel |
| CN101869916A (en) * | 2009-04-22 | 2010-10-27 | 宝山钢铁股份有限公司 | Band steel non-contact temperature measuring equipment of hot rolling layer cold area and control method thereof |
| WO2011025139A2 (en) * | 2009-08-27 | 2011-03-03 | 현대제철 주식회사 | Temperature control device for a rolling finishing mill and a method for the same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028562A (en) * | 2014-06-05 | 2014-09-10 | 东北大学 | Method for measuring temperature change in magnesium alloy rolling process |
| CN104028562B (en) * | 2014-06-05 | 2016-01-20 | 东北大学 | A kind of method measuring variations in temperature in magnesium alloy rolling process |
| CN104028561A (en) * | 2014-06-18 | 2014-09-10 | 内蒙古包钢钢联股份有限公司 | Method for guaranteeing final-cooling temperature precision for steel plates |
| CN104028561B (en) * | 2014-06-18 | 2017-01-11 | 内蒙古包钢钢联股份有限公司 | Method for guaranteeing final-cooling temperature precision for steel plates |
| CN105241581A (en) * | 2015-10-08 | 2016-01-13 | 中冶南方工程技术有限公司 | Temperature measurement, adjustment and calibration method and system for radiation pyrometer for continuous annealing furnace |
| CN105241581B (en) * | 2015-10-08 | 2018-03-13 | 中冶南方工程技术有限公司 | One kind is used for continuous annealing furnace radiant-energy thermometer thermometric adjusting process and system |
| CN107983782A (en) * | 2017-11-24 | 2018-05-04 | 山西太钢不锈钢股份有限公司 | The online quick method for checking lower surface quality on frame-type roller-way |
| CN108917960A (en) * | 2018-05-15 | 2018-11-30 | 首钢集团有限公司 | A kind of measuring device and method of billet heating temperature uniformity |
| CN109883170A (en) * | 2018-11-06 | 2019-06-14 | 邯郸钢铁集团有限责任公司 | A kind of Electro-galvanizing Production Line resistance and fingerprint resistance drying oven control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102225433B (en) | 2012-12-26 |
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