CN104864973A - Thermocouple-buried temperature test method in small square billet high temperature heating process - Google Patents
Thermocouple-buried temperature test method in small square billet high temperature heating process Download PDFInfo
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Abstract
The invention discloses a thermocouple-buried temperature test method in a small square billet high temperature heating process, which belongs to the field of metallurgical technology. The test method comprises the following steps: a) drilling and tapping are carried out at a corresponding place of a to-be-tested billet; b) a tester thermal protection device internally provided with a temperature tester is fixed at one end of the billet; d) a hollow connection bolt is arranged at the drilling and tapping place of the to-be-tested billet, an armored thermocouple is inserted in the center hole of the hollow connection bolt via a locking nut and an axial sealing spring respectively, and the armored thermocouple is fixed in the to-be-tested billet through fastening the locking nut and is connected with the temperature tester; f) the to-be-tested billet is put in a furnace for being heated; and e) after heating is over, the temperature tester is taken out, and data are read. A quick armored thermocouple mounting method and a small thermal protection device are designed, the method of the invention thus can be effectively applied to a heating furnace with a small effective furnace door opening in a high speed wire rod factory, and influences on the billet temperature test precision by furnace gas fluctuation, a gap and the like.
Description
Technical field
The invention belongs to metallurgical technology field, relate to a kind of heating steel billet process temperature method of testing, particularly relate to a kind of small dimension square billet high-temperature heating process even buried formula temperature testing method.
Background technology
Heater for rolling steel is as firing equipment before a kind of billet rolling of extensive employing, and its energy consumption accounts for 60% ~ 70% of Energy Consumption of Rolling Process, and therefore, the energy consumption problem of heater for rolling steel is the problem that people pay close attention to all the time.Meanwhile, grasp the temperature variations of Steel In Reheating Furnace base, be rational heating cycle, the necessary requirement optimizing heating process comprehensively.So the real time temperature distribution situation grasping heating furnace and Steel In Reheating Furnace base is particularly important comprehensively, it is research heating furnace, controls the starting point of heating furnace, formulation heating process.
In the various continuous industry stoves that iron and steel is produced, the thermocouple measurement of installing in stove be integrated temperature in stove, what the measurement of infrared temperature tester obtained is a surface temperature, and namely general measuring method accurately cannot obtain the profiling temperatures of steel billet in stove.For this situation, a lot of steel rolling mills active development can " black box " Research on Automatic Measuring System of Temperature of steel billet temperature distribution situation in Measurement accuracy stove.But " black box " temperature test developed at present is mainly used on the heating furnace of board mill.The fire door effective vent degree of Gao Xian factory heating furnace is less, not yet successfully develops small size " black box " temperature measuring device that can be applied to Gao Xian factory small dimension square billet heating process at present.
On the other hand, when adopting even buried formula thermometry to measure the temperature variations in heating steel billet process at present, usually after the punching of steel billet corresponding position, directly by thermopair patchhole.This method thermopair in measuring process easily comes off and causes test data unstable, fluctuates larger and inaccurate.
Summary of the invention
In order to overcome prior art deficiency, the object of the present invention is to provide a kind of even buried formula temperature testing method of small dimension square billet high-temperature heating process, to going out to be applied to the small size high temperature test instrument of Gao Xian factory test by the thermo-lag Optimal Development of tester, and improve temperature test precision by the armoured thermocouple method for rapidly mounting of design.
In order to realize above-mentioned technical purpose, the present invention is achieved by the following technical programs.
The even buried formula temperature testing method of a kind of small dimension square billet of the present invention high-temperature heating process, comprises the following steps:
A) tester temperature barrier inside being equipped with temperature measuring device is fixed on one end of blank to be measured;
B) in the punching tapping of the corresponding position of blank to be measured; Hollow coupling bolt is arranged on punching tapping place of blank to be measured; Armoured thermocouple is inserted in the center pit of hollow coupling bolt respectively by set nut and axial seal spring, and is fixed in blank to be measured by tightening set nut;
C) armoured thermocouple be fixed in blank to be measured is connected on temperature measuring device;
D) above-mentioned blank to be measured is sent in heating furnace, by normal productive process, blank to be measured is heated;
E) after blank heating to be measured terminates to come out of the stove, take out temperature measuring device, read data.
Further, described tester temperature barrier comprise set gradually by skin to internal layer thermal protection high-temperature heat insulation layer, warm heat insulation layer, thermal protection Cryo Heat Insulation layer and thermal protection decalescence layer in thermal protection.
Compared with prior art, the present invention has following technique effect:
1) by improving insulation material, reduce the size of temperature barrier, overall dimensions is compared conventional " black box " temperature test instrument size at present and is reduced more than 60%, more than 1300 DEG C high temperature and direct water-spraying control can be born simultaneously, therefore effectively can be applied to the less heating furnace of Gao Xian factory fire door effective vent.
2) invention devises armoured thermocouple method for rapidly mounting, makes the installation of TC polyvinyl chloride, firm, significantly reduces the impact on blank temperature measuring accuracy such as furnace gas fluctuation, gap.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is armoured thermocouple Fast Installation mode schematic diagram.
Fig. 3 is tester temperature barrier structural representation.
In figure: 1-blank to be measured; 2-armoured thermocouple; 3-tester temperature barrier; 4-temperature measuring device; 5-set nut; 6-axial seal spring; The hollow coupling bolt of 7-; 8-thermal protection high-temperature heat insulation layer; Warm heat insulation layer in 9-thermal protection; 10-thermal protection Cryo Heat Insulation layer; 11-thermal protection decalescence layer.
Embodiment
In order to those skilled in the art can better understand technical scheme provided by the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in FIG. 1 to 3, the even buried formula temperature testing method of a kind of small dimension square billet of the present invention high-temperature heating process, comprises the following steps:
1) in the punching tapping of the corresponding position of blank to be measured;
2) temperature measuring device is placed in tester temperature barrier;
3) tester temperature barrier inside being equipped with temperature measuring device is fixed on one end of blank to be measured;
4) by armoured thermocouple method for rapidly mounting, armoured thermocouple is fixed in blank to be measured, and is connected on temperature measuring device;
5) blank to be measured being provided with armoured thermocouple and temperature measuring device is sent in heating furnace, by normal productive process, blank to be measured is heated;
6), after blank heating to be measured terminates to come out of the stove, temperature measuring device is taken out, sense data.
Described armoured thermocouple method for rapidly mounting, comprises the following steps:
1) hollow coupling bolt is arranged on punching tapping place of blank to be measured;
2) armoured thermocouple is inserted in the center pit of hollow coupling bolt respectively by set nut and axial seal spring, and be adjacent to blank to be measured;
3) tighten set nut, armoured thermocouple is fixed in blank to be measured.
Described temperature measuring device comprises testing circuit board and water barrier.
Tester temperature barrier of the present invention comprise set gradually by skin to internal layer thermal protection high-temperature heat insulation layer, warm heat insulation layer, thermal protection Cryo Heat Insulation layer and thermal protection decalescence layer in thermal protection.The composition of described high-temperature heat insulation layer is ceramic alumina fiber; The composition of described middle temperature heat insulation layer is aerogel; The composition of described Cryo Heat Insulation layer is glass fibre; The composition of described decalescence layer is paraffin.
Tester temperature barrier overall dimensions of the present invention is compared conventional " black box " temperature test instrument size at present and is reduced more than 60%, and can bear 1300 DEG C of high temperature and direct water-spraying control.It is furnace temperature 1350 DEG C, and entering stove to the safety coefficient under the boundary condition of the average duration 150min that comes out of the stove is 1.7.
The even buried formula temperature testing method of the present invention's design effectively can be applied to the less heating furnace of Gao Xian factory fire door effective vent, by armoured thermocouple method for rapidly mounting, utilize set nut and axial seal spring to fasten armoured thermocouple, effectively can reduce the impact on blank temperature measuring accuracy such as furnace gas fluctuation, gap.
Claims (2)
1. an even buried formula temperature testing method for small dimension square billet high-temperature heating process, is characterized in that comprising the steps:
A) the tester temperature barrier (3) inside being equipped with temperature measuring device (4) is fixed on one end of blank to be measured (1);
B) in the punching tapping of the corresponding position of blank to be measured (1); Hollow coupling bolt (7) is arranged on punching tapping place of blank to be measured (1); Armoured thermocouple (2) is inserted in the center pit of hollow coupling bolt (7) respectively by set nut (5) and axial seal spring (6), and is fixed in blank to be measured (1) by tightening set nut (5);
C) armoured thermocouple (2) be fixed in blank to be measured (1) is connected on temperature measuring device (4);
D) above-mentioned blank to be measured (1) is sent in heating furnace, by normal productive process, blank to be measured (1) is heated;
E) after blank to be measured (1) heating end is come out of the stove, take out temperature measuring device (4), read data.
2. the even buried formula temperature testing method of a kind of small dimension square billet high-temperature heating process as claimed in claim 1, it is characterized in that, described tester temperature barrier (3) comprise set gradually by skin to internal layer thermal protection high-temperature heat insulation layer (8), warm heat insulation layer (9), thermal protection Cryo Heat Insulation layer (10) and thermal protection decalescence layer (11) in thermal protection.
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| CN201510297730.7A CN104864973B (en) | 2015-06-02 | 2015-06-02 | A kind of even buried formula temperature testing method of small dimension square billet high-temperature heating process |
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Cited By (7)
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| CN106568713A (en) * | 2015-10-12 | 2017-04-19 | 宝钢特钢有限公司 | High temperature laser confocal microscope apparatus with temperature calibration device and temperature calibration method thereof |
| CN108120795A (en) * | 2018-03-07 | 2018-06-05 | 南京工业大学 | Self-feeding type heating dump low-temperature oxidation induction accelerates autoignition test simulator |
| 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 |
| CN110082006A (en) * | 2019-05-23 | 2019-08-02 | 江西联创光电科技股份有限公司 | A kind of the uniform sampling measurement method and equipment of conductor bar internal temperature |
| CN110082005A (en) * | 2019-05-23 | 2019-08-02 | 江西联创光电科技股份有限公司 | A kind of the nonuniform sampling measurement method and equipment of conductor bar internal temperature |
| CN110501081A (en) * | 2018-05-17 | 2019-11-26 | 江阴兴澄合金材料有限公司 | A kind of cross roll bottom furnace temperature uniformity measurement method |
| CN112229532A (en) * | 2020-09-28 | 2021-01-15 | 洛阳中重铸锻有限责任公司 | Method for measuring quenching cooling temperature field of casting and forging |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568713A (en) * | 2015-10-12 | 2017-04-19 | 宝钢特钢有限公司 | High temperature laser confocal microscope apparatus with temperature calibration device and temperature calibration method thereof |
| 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 |
| CN108120795A (en) * | 2018-03-07 | 2018-06-05 | 南京工业大学 | Self-feeding type heating dump low-temperature oxidation induction accelerates autoignition test simulator |
| CN108120795B (en) * | 2018-03-07 | 2023-10-13 | 南京工业大学 | Self-feeding type heating coal pile low-temperature oxidation induction accelerating spontaneous combustion test simulation device |
| CN110501081A (en) * | 2018-05-17 | 2019-11-26 | 江阴兴澄合金材料有限公司 | A kind of cross roll bottom furnace temperature uniformity measurement method |
| CN110082006A (en) * | 2019-05-23 | 2019-08-02 | 江西联创光电科技股份有限公司 | A kind of the uniform sampling measurement method and equipment of conductor bar internal temperature |
| CN110082005A (en) * | 2019-05-23 | 2019-08-02 | 江西联创光电科技股份有限公司 | A kind of the nonuniform sampling measurement method and equipment of conductor bar internal temperature |
| CN112229532A (en) * | 2020-09-28 | 2021-01-15 | 洛阳中重铸锻有限责任公司 | Method for measuring quenching cooling temperature field of casting and forging |
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