CN106053520B - A kind of method and device of thermal analysis system measurement molten iron manganese content - Google Patents
A kind of method and device of thermal analysis system measurement molten iron manganese content Download PDFInfo
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- CN106053520B CN106053520B CN201610320938.0A CN201610320938A CN106053520B CN 106053520 B CN106053520 B CN 106053520B CN 201610320938 A CN201610320938 A CN 201610320938A CN 106053520 B CN106053520 B CN 106053520B
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- molten iron
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- iron manganese
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
Abstract
The invention discloses a kind of methods of thermal analysis system measurement molten iron manganese content, temperature and time data in acquisition cooling procedure obtain cooling curve, the slope K that line between two coordinate points for corresponding to TL and TE on liquidus temperature TL, eutectic temperature TE and cooling curve is obtained according to cooling curve calculates manganese element content by formula Mn%=(0.001 ~ 0.003) × TL- (0.0045 ~ 0.0065) × TE-(0.62 ~ 0.85) × K-7.47；The invention also discloses a kind of devices of thermal analysis system measurement molten iron manganese content, including test specimens cup, the thermocouple being set in test specimens cup, the data collecting card for acquiring data and the industrial personal computer for handling data；The present invention uses the principle of heat analysis, quickly measures molten iron manganese element content, needs 2 minutes or so from measurement result is sampled to only, and easy to operate, does not need to be equipped with professional.
Description
Technical field
The present invention relates to the technical field of thermal analysis system measurement molten iron constituent content more particularly to a kind of measurements of thermal analysis system
The method and device of molten iron manganese content.
Background technique
The measuring method of molten iron manganese element generallys use chemical analysis or spectra methods at present, ties from measurement is sampled to
Fruit, chemical analysis at least need half an hour, and spectra methods is also required to 15 minutes or so, and two methods are required to be equipped with profession
Personnel, and spectra methods equipment is expensive.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind, cost is relatively low, and operation is simple, as a result reliably
A kind of thermal analysis system measurement molten iron manganese content method and device.
In order to achieve the goal above, the technical scheme adopted by the invention is that:
A kind of method of thermal analysis system measurement molten iron manganese content, pours into the test specimens with temperature thermocouple for the molten iron of melting
Cup, the temperature and time data acquired in cooling procedure obtain cooling curve, obtain liquidus temperature TL, eutectic according to cooling curve
The slope K of line between two coordinate points of TL and TE is corresponded on temperature TE and cooling curve；According to liquidus temperature TL, eutectic
The content of the manganese element in molten iron, specific formula is calculated in temperature TE and slope K are as follows: and Mn%=(0.001 ~ 0.003) ×
TL-(0.0045 ~ 0.0065) × TE-(0.62 ~ 0. 85) × K -7.47, wherein Mn% is that the percentage of manganese element contains
Amount.
A kind of device of thermal analysis system measurement molten iron manganese content, including test specimens cup, the thermoelectricity being set in test specimens cup
The even, data collecting card for acquiring data and the industrial personal computer for handling data, wherein the thermocouple, data collecting card and
Industrial personal computer is sequentially connected, and the temperature signal of the data acquisition device acquisition thermocouple is simultaneously sent to industrial personal computer, and industrial personal computer is to temperature
Degree signal, which is analyzed and processed, draws cooling curve calculating manganese element content.
Further, compensating wire is connected between the thermocouple and data collecting card.
Further, the industrial personal computer is also connected with the display for showing cooling curve and data.
The beneficial effects of the present invention are: the method for thermal analysis system measurement molten iron manganese content of the invention uses the original of heat analysis
Reason quickly measures molten iron manganese element content, needs 2 minutes or so, and easy to operate from measurement result is sampled to only, do not need to match
Standby professional.And the apparatus structure that it is used is simple, cost is lower, is suitble to large-scale popularization.
Detailed description of the invention
Fig. 1 is the schematic diagram for the device that thermal analysis system of the invention measures molten iron manganese content.
Fig. 2 is cooling chart.
Wherein, 1- test specimens cup, 11- thermocouple, 2- data collecting card, 3- industrial personal computer, 4- display, 5- compensating wire.
Specific embodiment
Claimed technical solution of the invention is described in further detail now in conjunction with the drawings and specific embodiments.
Referring to figure 1, the device of the measurement of thermal analysis system used by the present embodiment molten iron manganese content includes test specimens
Cup 1, thermocouple 11, the data collecting card 2 for acquiring data, the industry control for handling data being set in test specimens cup 1
Machine 3 and display 4, wherein thermocouple 11, data collecting card 2, industrial personal computer 3 and display 4 are sequentially connected, hot in the present embodiment
Compensating wire 5 is connected between galvanic couple 11 and data collecting card 2.
Data acquisition device acquisition thermocouple 11 temperature signal simultaneously be sent to industrial personal computer 3, industrial personal computer 3 to temperature signal into
Row analysis processing draws cooling curve and calculates manganese element content, and wherein industrial personal computer 3 handles resulting cooling curve and data pass through
Display 4 is shown.
The method of assay molten iron manganese content is as follows in the present embodiment: the molten iron of melting is poured into band temperature thermocouple
11 test specimens cup 1, the temperature and time data acquired in cooling procedure obtain cooling curve, obtain primary crystal according to cooling curve
The slope K of line between two coordinate points of TL and TE is corresponded on temperature TL, eutectic temperature TE and cooling curve；According to primary crystal
The content of the manganese element in molten iron, specific formula is calculated in temperature TL, eutectic temperature TE and slope K are as follows: Mn%=(0.001
~ 0.003) × TL-(0.0045 ~ 0.0065) × TE-(0.62 ~ 0. 85) × K -7.47, wherein Mn% is manganese member
The percentage composition of element.
Specifically test result is as follows for it:
| Number | 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 method of the thermal analysis system measurement molten iron manganese content of the present embodiment uses the principle of heat analysis, quickly measures molten iron manganese
Constituent content needs 2 minutes or so from measurement result is sampled to only, and easy to operate, does not need to be equipped with professional.And it is adopted
Apparatus structure is simple, and cost is lower, is suitble to large-scale popularization.
The embodiment of the above is only presently preferred embodiments of the present invention, not does limit in any form to the present invention
System.Anyone skilled in the art, without departing from the scope of the technical proposal of the invention, all using the disclosure above
Technology contents more possible variations and retouching are made to technical solution of the present invention, or be revised as the equivalence enforcement of equivalent variations
Example.Therefore all contents without departing from technical solution of the present invention, equivalent equivalence changes, should all cover made by thinking according to the present invention
In in protection scope of the present invention.
Claims (3)
1. a kind of method of thermal analysis system measurement molten iron manganese content, which is characterized in that specifically include:
(1) molten iron of melting is poured into the test specimens cup with temperature thermocouple；
(2) the temperature and time data acquired in cooling procedure obtain cooling curve；
(3) two seats that TL and TE is corresponded on liquidus temperature TL, eutectic temperature TE and cooling curve are obtained according to cooling curve
The slope K of line between punctuate；
(4) content of the manganese element in molten iron is calculated according to liquidus temperature TL, eutectic temperature TE and slope K；
Specific formula are as follows: 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；
Wherein, the method measurement molten iron manganese content device include: test specimens cup, the thermocouple being set in test specimens cup,
Industrial personal computer for acquiring the data collecting card of data and for handling data, wherein the thermocouple, data collecting card and work
Control machine is sequentially connected, and the temperature signal of the data collecting card acquisition thermocouple is simultaneously sent to industrial personal computer, and industrial personal computer believes temperature
It number is analyzed and processed and to draw cooling curve and calculate manganese element content.
2. a kind of method of thermal analysis system measurement molten iron manganese content according to claim 1, which is characterized in that described in use
Compensating wire is connected between thermocouple and data collecting card described in the device of method measurement molten iron manganese content.
3. a kind of method of thermal analysis system measurement molten iron manganese content according to claim 1, which is characterized in that described in use
Industrial personal computer described in the device of method measurement molten iron manganese content is also connected with the display for showing cooling curve and data.
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| CN106053520B true CN106053520B (en) | 2019-08-06 |
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| 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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