CN106053520A - Thermal analysis method and device for measuring manganese content of molten iron - Google Patents
Thermal analysis method and device for measuring manganese content of molten iron Download PDFInfo
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- CN106053520A CN106053520A CN201610320938.0A CN201610320938A CN106053520A CN 106053520 A CN106053520 A CN 106053520A CN 201610320938 A CN201610320938 A CN 201610320938A CN 106053520 A CN106053520 A CN 106053520A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/12—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of critical point; of other phase change
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Abstract
The invention discloses a thermal analysis method for measuring the manganese content of molten iron. According to the method, data of temperature and time can be collected during the cooling process to obtain a cooling curve; according to the cooling curve, the liquidus temperature (TL), eutectic temperature (TE), and the slope (K) of the straight line between the coordinate point (TL) and the coordinate point (TE) on the cooling curve can be obtained; the manganese content can be calculated according to a formula: Mn%=(0.001~0.003)*TL-(0.0045~0.0065)*TE-(0.62~0.85)*K-7.47. The invention also discloses a device for the provided thermal analysis method to measure the manganese content of molten iron. The device comprises a thermal couple in a test cup, a data collection card for collecting data, and an industrial personal computer for processing data. The principle of thermal analysis is used to measure the manganese content of molten iron quickly, the whole process from sampling to result obtaining only needs about two minutes, moreover, the operation is simple, and no specialized person is required.
Description
Technical field
The present invention relates to thermal analysis system and measure the technical field of molten iron constituent content, particularly relate to a kind of thermal analysis system and measure the method and device of molten iron Fe content.
Background technology
The assay method of molten iron manganese element generally uses chemical analysis or spectra methods at present, from being sampled to measurement result, chemical analysis is minimum needs half an hour, and spectra methods is also required to about 15 minutes, two kinds of methods are required to be equipped with professional, and spectra methods apparatus expensive.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of cost is relatively low, and operation is simple, and a kind of thermal analysis system of reliable results measures the method and device of molten iron Fe content.
In order to realize object above, the technical solution adopted in the present invention is:
A kind of thermal analysis system measures the method for molten iron Fe content, melted molten iron is poured into the test specimens cup of band temperature thermocouple, the temperature and time data gathered in cooling procedure obtain cooling curve, draw on liquidus temperature TL, eutectic temperature TE and cooling curve the slope K of line between two coordinate points of corresponding TL and TE according to cooling curve；Calculate the content of manganese element in molten iron according to liquidus temperature TL, eutectic temperature TE and slope K, its concrete formula is: Mn%=(0.001 ~ 0.003) × TL-(0.0045 ~ 0.0065) × TE (0.62 ~ 0. 85) × K
-7.47, wherein Mn% is the percentage composition of manganese element.
A kind of thermal analysis system measures the device of molten iron Fe content, the thermocouple that including test specimens cup, is arranged in test specimens cup, for gathering the data collecting card of data and for processing the industrial computer of data, wherein said thermocouple, data collecting card and industrial computer are sequentially connected with, described data acquisition unit gathers the temperature signal of thermocouple and sends to industrial computer, and temperature signal is analyzed processing by industrial computer draws cooling curve calculating manganese element content.
Further, it is connected between described thermocouple and data collecting card and has compensating wire.
Further, described industrial computer is also associated with the display for showing cooling curve and data.
The invention has the beneficial effects as follows: the thermal analysis system of the present invention measures the method for molten iron Fe content and uses thermoanalytical principle, quickly measure molten iron manganese element content, only need about 2 minutes from being sampled to measurement result, and simple to operate, it is not necessary to it is equipped with professional.And the apparatus structure that it uses is simply, cost is relatively low, is suitable for large-scale popularization.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the device of the thermal analysis system mensuration molten iron Fe content of the present invention.
Fig. 2 is cooling chart.
Wherein, 1-test specimens cup, 11-thermocouple, 2-data collecting card, 3-industrial computer, 4-display, 5-compensating wire.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, claimed technical solution of the invention is described in further detail.
See shown in accompanying drawing 1, thermal analysis system that the present embodiment is used measures thermocouple 11 that the device of molten iron Fe content includes test specimens cup 1, is arranged in test specimens cup 1, for gathering the data collecting card 2 of data, for processing industrial computer 3 and the display 4 of data, wherein thermocouple 11, data collecting card 2, industrial computer 3 and display 4 are sequentially connected with, and being connected between thermocouple 11 with data collecting card 2 in the present embodiment has compensating wire 5.
Data acquisition unit gathers the temperature signal of thermocouple 11 and sends to industrial computer 3, temperature signal is analyzed processing by industrial computer 3 to be drawn cooling curve and calculates manganese element content, and wherein industrial computer 3 is processed the cooling curve of gained and data and shown by display 4.
In the present embodiment, the method for assay molten iron Fe content is as follows: melted molten iron pours into the test specimens cup 1 of band temperature thermocouple 11, the temperature and time data gathered in cooling procedure obtain cooling curve, draw on liquidus temperature TL, eutectic temperature TE and cooling curve the slope K of line between two coordinate points of corresponding TL and TE according to cooling curve；Calculate the content of manganese element in molten iron according to liquidus temperature TL, eutectic temperature TE and slope K, its concrete formula is: Mn%=(0.001 ~ 0.003) × TL-(0.0045 ~ 0.0065) × TE (0.62 ~ 0. 85) × K
-7.47, wherein Mn% is the percentage composition of manganese element.
Its concrete test result is as follows:
| Numbering | Liquidus temperature TL (DEG C) | Eutectic temperature TE (DEG C) | K | Mn% |
| 1 | 1132 | 1122 | 0.055 | 0.16 |
| 2 | 1159 | 1112 | 0.19 | 0.43 |
| 3 | 1208 | 1124 | 0.27 | 0.83 |
| 4 | 1223 | 1116 | 0.33 | 1.05 |
| 5 | 1241 | 1121 | 0.37 | 1.36 |
The thermal analysis system of the present embodiment measures the method for molten iron Fe content and uses thermoanalytical principle, quickly measures molten iron manganese element content, only needs about 2 minutes from being sampled to measurement result, and simple to operate, it is not necessary to be equipped with professional.And the apparatus structure that it uses is simply, cost is relatively low, is suitable for large-scale popularization.
The embodiment of the above is only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction.Any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, technical solution of the present invention is made more possible variation and retouching by the technology contents that all may utilize the disclosure above, or is revised as the Equivalent embodiments of equivalent variations.Therefore all contents without departing from technical solution of the present invention, the equivalent equivalence change made according to the thinking of the present invention, all should be covered by protection scope of the present invention.
Claims (4)
1. the method that a thermal analysis system measures molten iron Fe content, it is characterized in that: melted molten iron is poured into the test specimens cup of band temperature thermocouple, the temperature and time data gathered in cooling procedure obtain cooling curve, draw on liquidus temperature TL, eutectic temperature TE and cooling curve the slope K of line between two coordinate points of corresponding TL and TE according to cooling curve；The content of manganese element in molten iron is calculated according to liquidus temperature TL, eutectic temperature TE and slope K, its concrete formula is: Mn%=(0.001 ~ 0.003) × TL-(0.0045 ~ 0.0065) × TE (0.62 ~ 0. 85) × K-7.47, wherein Mn% is the percentage composition of manganese element.
2. the device of a thermal analysis system mensuration molten iron Fe content, it is characterized in that: include test specimens cup, the thermocouple being arranged in test specimens cup, for gathering the data collecting card of data and for processing the industrial computer of data, wherein said thermocouple, data collecting card and industrial computer are sequentially connected with, described data acquisition unit gathers the temperature signal of thermocouple and sends to industrial computer, and temperature signal is analyzed processing by industrial computer draws cooling curve calculating manganese element content.
A kind of thermal analysis system the most according to claim 2 measures the device of molten iron Fe content, it is characterised in that: it is connected between described thermocouple and data collecting card and has compensating wire.
A kind of thermal analysis system the most according to claim 2 measures the device of molten iron Fe content, it is characterised in that: described industrial computer is also associated with the display for showing cooling curve and data.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195876A (en) * | 2017-12-28 | 2018-06-22 | 佛山科睿探测仪器科技有限公司 | The method and apparatus of potassium steel molten steel manganese content during a kind of thermal analysis system measures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195876A (en) * | 2017-12-28 | 2018-06-22 | 佛山科睿探测仪器科技有限公司 | The method and apparatus of potassium steel molten steel manganese content during a kind of thermal analysis system measures |
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