US20060231989A1 - Sampling vessel for measuring cooling temperature of molten metals - Google Patents
Sampling vessel for measuring cooling temperature of molten metals Download PDFInfo
- Publication number
- US20060231989A1 US20060231989A1 US11/105,286 US10528605A US2006231989A1 US 20060231989 A1 US20060231989 A1 US 20060231989A1 US 10528605 A US10528605 A US 10528605A US 2006231989 A1 US2006231989 A1 US 2006231989A1
- Authority
- US
- United States
- Prior art keywords
- vessel
- sampling vessel
- molten metals
- molten metal
- partition
- 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.)
- Abandoned
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
Definitions
- the present invention relates to a sampling vessel for measuring cooling temperature of molten metals in order to examine the constituents of molten cast iron, steel and light metals
- the examination of the constituents of the above metals is carried out by using a cup-shape vessel which is made from refractory material such as ceramics.
- the high temperature molten metal corrected from a blast furnace is poured into the vessel as a sample.
- the high temperature molten metal is pouring into the sampling vessel having a temperature sensor, for example, a rod-like alumel-chromel thermocouple, is extended perpendicularly from the bottom of the cup, and a lower end of the thermocouple is connected with a thermometer for constructing a cooling curve of the molten metal in the vessel.
- a temperature sensor for example, a rod-like alumel-chromel thermocouple
- FIG. 1 is a longitudinal section of the sampling vessel for measuring a cooling curve of the molten metal according to the present invention
- FIG. 2 is a plan view of FIG. 1 ;
- FIG. 3 is a modification of the sampling vessel according to the present invention.
- ther is illustrated a longitudinal section of the sampling vessel for measuring a cooling curve of the molten metal according to the present invention.
- the sampling vessel 10 is a cylindrical main body 12 , which is made from refractory material such as, for example, ceramics.
- the interior of the sampling vessel 10 is separated by a partition 14 so as to form an upper room 16 and under room 18 .
- An opening 20 is provided in the center of the partition 14 so as to the molten metal poured into the upper room 16 is flow into the under room 18 , and both room 16 and 18 are respectively filled with the molten metal.
- thermocouple 24 is fixed to the bottom 22 and is extended vertically from the bottom 22 to under the opening 20 of the partition 14 .
- the lower end of the thermocouple 24 is connected to a well-known automatic temperature measuring devices, which is not shown in the drawings.
- the temperature of the molten metal is lowered down at least 150° C. therefrom before the vessel 10 is filled with the molten metal, because the molten metal contacts with the inner surfaces of the vessel separated with the upper room 16 and the under room 18 by means of the partition 14 having the opening or openings 20 .
- the temperature of the molten metal which poured into the vessel 10 can be lowered at the high-velocity than the usual sampling vessel, and therefore, when the sampling vessel 10 of the present invention is employed, the operating time of the furnace can be shorten than the prior art usual sampling vessel is employed.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A sampling vessel (10) to be used for analyzing molten metals is separated by a partition (14) so as to form an upper room (16) and a lower room (18). The partition (14) is provided with one or plurality of openings (20). Accordingly, the molten metals poured into the vessel (10) can contact with a large inner surface of the vessel (10).
Description
- The present invention relates to a sampling vessel for measuring cooling temperature of molten metals in order to examine the constituents of molten cast iron, steel and light metals
- In general, the examination of the constituents of the above metals is carried out by using a cup-shape vessel which is made from refractory material such as ceramics. The high temperature molten metal corrected from a blast furnace is poured into the vessel as a sample.
- In order to investigate the properties of the molten metal before casting, the high temperature molten metal is pouring into the sampling vessel having a temperature sensor, for example, a rod-like alumel-chromel thermocouple, is extended perpendicularly from the bottom of the cup, and a lower end of the thermocouple is connected with a thermometer for constructing a cooling curve of the molten metal in the vessel.
- The sampling vessel in the above is already well-known in the prior art, as shown in under:
- Japanese Patent No. 2,117,577,
- Japanese Patent No. 2,510,947,
- U.S. Pat. No. 4,261,740 and others.
- According to the usual prior art sampling vessel, it takes much time for analysing the constituents of the high temperature molten metal having 600° C. or more which is obtained from the blast furnace in order to fall it down to a desired temperature, and on the other hand, the temperature of the molten metal in the blast furnace must be maintained its original high temperature.
- However, as the operation of the blast furnace requires large amounts of electric power, it is very expensive to keep the high temperature of the molten metal in the furnace. It is, therefore, it is required to save the time for measuring the temperature change of the molten metal in the vessel.
- In view of the above, it is a principal object of the present invention to provide a sampling vessel to save the time for thermal analyzing of the high temperature molten metal therein.
-
FIG. 1 is a longitudinal section of the sampling vessel for measuring a cooling curve of the molten metal according to the present invention; -
FIG. 2 is a plan view ofFIG. 1 ; and -
FIG. 3 is a modification of the sampling vessel according to the present invention. - Referring to
FIG. 1 , ther is illustrated a longitudinal section of the sampling vessel for measuring a cooling curve of the molten metal according to the present invention. thesampling vessel 10 is a cylindricalmain body 12, which is made from refractory material such as, for example, ceramics. - The interior of the
sampling vessel 10 is separated by apartition 14 so as to form anupper room 16 and underroom 18. Anopening 20 is provided in the center of thepartition 14 so as to the molten metal poured into theupper room 16 is flow into the underroom 18, and bothroom - A
thermocouple 24 is fixed to thebottom 22 and is extended vertically from thebottom 22 to under theopening 20 of thepartition 14. The lower end of thethermocouple 24 is connected to a well-known automatic temperature measuring devices, which is not shown in the drawings. - If the molten metal having temperature of about 1500° C. is poured into the
sampling vessel 10 of the present invention from the blast furnace, the temperature of the molten metal is lowered down at least 150° C. therefrom before thevessel 10 is filled with the molten metal, because the molten metal contacts with the inner surfaces of the vessel separated with theupper room 16 and the underroom 18 by means of thepartition 14 having the opening oropenings 20. - According to the
sampling vessel 10 of the invention, the temperature of the molten metal which poured into thevessel 10 can be lowered at the high-velocity than the usual sampling vessel, and therefore, when thesampling vessel 10 of the present invention is employed, the operating time of the furnace can be shorten than the prior art usual sampling vessel is employed.
Claims (3)
1. A sampling vessel for measuring cooling temperature of molten metals, comprising a cylindrical main body (12), a partition (14) for separating the main body (12) to an upper room (16) and a lower room (18), and an opening (20) provided to the partition (14) in order to flowing the molten metals which poured into the upper room (16) of the main body (12) into the lower room (18) so as to contact the molten metals with the wide surface in the vessel.
2. A sampling vessel claimed in claim 1 in which the opening (20) is formed in the center of the partition (14).
3. A sampling vessel claimed in claim 1 in which a plurality of opening (20) are provided to the partition (14).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/105,286 US20060231989A1 (en) | 2005-04-13 | 2005-04-13 | Sampling vessel for measuring cooling temperature of molten metals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/105,286 US20060231989A1 (en) | 2005-04-13 | 2005-04-13 | Sampling vessel for measuring cooling temperature of molten metals |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060231989A1 true US20060231989A1 (en) | 2006-10-19 |
Family
ID=37107746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/105,286 Abandoned US20060231989A1 (en) | 2005-04-13 | 2005-04-13 | Sampling vessel for measuring cooling temperature of molten metals |
Country Status (1)
Country | Link |
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US (1) | US20060231989A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3295171A (en) * | 1964-06-16 | 1967-01-03 | Jones & Laughlin Steel Corp | Frangible ceramic test mold |
US5452881A (en) * | 1992-11-07 | 1995-09-26 | Horiba Ltd. | Crucible for an analyzer |
-
2005
- 2005-04-13 US US11/105,286 patent/US20060231989A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3295171A (en) * | 1964-06-16 | 1967-01-03 | Jones & Laughlin Steel Corp | Frangible ceramic test mold |
US5452881A (en) * | 1992-11-07 | 1995-09-26 | Horiba Ltd. | Crucible for an analyzer |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |