US3321978A - Molten metal sampling apparatus - Google Patents
Molten metal sampling apparatus Download PDFInfo
- Publication number
- US3321978A US3321978A US475739A US47573965A US3321978A US 3321978 A US3321978 A US 3321978A US 475739 A US475739 A US 475739A US 47573965 A US47573965 A US 47573965A US 3321978 A US3321978 A US 3321978A
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- mold
- molten metal
- cover
- sample
- cavity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/12—Dippers; Dredgers
- G01N1/125—Dippers; Dredgers adapted for sampling molten metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S73/00—Measuring and testing
- Y10S73/09—Molten metal samplers
Definitions
- ABSTRACT OF THE DISCLOSURE This disclosure describes apparatus for obtaining solidified samples of molten metal such as steel.
- a metal mold positioned in an insulating jacket has a frangible collar surrounding the upper portion of the mold.
- a buoyant cover seals the opening of the mold until the mold is under the slag layer and a U-bolt assembly retaining the cover in place then melts to release the cover. The cover floats away carrying with it any adhered slag and permitting the mold cavity to fill with a sample accurately representative of the molten metal.
- a washer of insulating material can be interposed between cover, mold and U- bolt to prevent the molten metal from welding these items together before a sample has filled the mold.
- the frangible collar is shattered to facilitate easy removal of the sample from the mold.
- the apparatus is particularly useful in obtaining samples of molten steel from which the oxygen content of the steel can be determined accurately.
- This invention concerns an apparatus and a process for obtaining a solidified sample of molten metal.
- this invention is useful in obtaining solidified samples of molten steel from which the oxygen content -of the steel can be accurately determined.
- Apparatus provided by this invention for obtaining a solidified sampleof molten metal comprises a mold open at one end and having a sample cavity, the exterior of said mold having a lower portion and an upper portion, said mold being capable of absorbing heat sufficient to substantially solidify molten metal filling-said cavity, a heat insulating sleeve surrounding the lower portion of the mold, a frangible collar surrounding at least part of the upper portion of the mold; a cover for the open end of the mold, said cover comprising a sealing member associated with a buoyant member, said sealing member substantially sealing the open end of the mold; means for temporarily retaining the cover in position, said retaining means being capable of releasing the cover after submergence in the molten metal; and means for submerging the mold into and removing the mold from the molten metal.
- Reproducibility of oxygen content determinations of molten steel using apparatus of this invention averages about 0.003% as compared with variations of nearly .02% when using the spoon sampling molds of the prior art. Many of the difficulties encountered when using spoon sampling molds of the prior art, including those listed above, are also overcome when using apparatus of this invention.
- FIGURE 1 of the drawings is an exploded view of the sampling apparatus of this invention
- FIGURE 2 is an assembly view of this apparatus
- FIGURE 3 shows the apparatus after removal from the molten metal with a solidified sample
- FIGURE 4 is a partially exploded cross section of the apparatus shown in FIGURE 3.
- FIGURE 1 shows a mold 10 having an inwardly tapered sample cavity 12 and an outwardly tapered upper portion 16 which simplify removal of the solidified sample, especially when the mold is of unit construction.
- the mass of mold 10 is suflicient to absorb enough heat from the sample of molten metal eventually filling cavity 12 to substantially solidify that metal while the apparatus of this invention is submerged in the molten metal.
- Materials of construction for mold 10 are preferably capable of conducting heat away from the molten metal filling the mold cavity with sufficient rapidity to prevent substantial adherence of the sample after solidification to the mold. Copper, silver, or alloys, are preferred materials of construction for mold 10 because of high heat conductivities, high melting points and decreased tendency to weld to the molten steel sample.
- upper portion 16 can have a straight lower section 17.
- Mold 10 is preferably of unit construction but can be of the split type; The lower portion 14 of mold 10 is surrounded by a heat insulating sleeve 20 which prevents substantial loss of the heat capacity of mold 10 to surrounding molten metal. Ceramic coated steel 42 is preferably used as sleeve 20 because of excellent strength and insulating properties.
- Collar 22 is preferably made of ceramic materials, such as zircon, to provide additional heat insulation. If desired, additional strength can be imparted to collar 22 by wrapping collar 22 with wire 23.
- Collar 22 By covering the joint 13 between sleeve 20 and upper portion 16 with collar 22, entry of molten metal into the .space between sleeve 20 and the lower portion 14 of molten metal being sampled. Wood is preferred for block 26 when sampling molten steel because of economy, ease of fabrication and efiicient operation. Ceramics or other materials having buoyancy in the molten metal being sampled can also be used.
- Metal plate 25 substantially seals the open end of mold 10 to prevent slag from entering the mold cavity 12.
- a recessed area 27 can be provided in cover-24 if desired;
- U-bolt assembly 28 fits over cover 24 and handle head 32 as shown in FIGURE 2, thereby temporarily retaining cover 24 in position.
- U-bolt 29 is preferably of a material vmelting at a temperature less than the temperature of the molten metal and thereby capable of releasing cover 24 after submergence in the molten metal.
- U-bolt 29 is preferably a inch steel rod and metal plate 25 is preferably at least about 0.060 inch thick to prevent premature filling of mold cavity 12.
- pipe 44 attached by means of bolt 46 to steel bar 47.
- Bar 47 is attached in turn to bolt assembly 48, thereby forming a U-shaped assembly to allow submerging of mold 10 in a substantially upright position.
- an insulating fibrous material 50 coated with a ceramic insulating coating 52.
- a typical fibrous material is fibrous aluminum silicate.
- Aluminum silicate can also be used as the insulating coating.
- Mold 10 is threadably attached to bolt assembly 48 with washers 36 interposed to prevent fouling of the threads by molten metal. Washers 36 can also be made of fibrous aluminum silicate. Handle assemblies made in this manner can be used several times to obtainsamples of molten steel before requiring patching.
- a solidified sample of molten metal is obtained according to thisinvention by submerging the apparatus of this invention in the molten metal; holding apparatus submerged until the cover 24 is released allowing the cavity 12 to substantially fill with molten metal; removing the a 'mold from the molten metal; breaking frangible collar 22 and removing sample 40 from the mold cavity 12.
- the frangible nature of collar 22 is useful in promoting rapid removal of samples from the mold cavity.
- the solidified sample 40 ordinarily has a mushroom-shaped head 41 which can be gripped with pliers to remove sample 40 from cavity 12.
- Sample 40 is of the pin type from which samples for analysis can be easily machined.
- Means for preventing welding of cover 24 to the mold assembly, whereby cavity 12 is not properly filled with a sample, are desirable in'apparatus of this invention when sampling certainmolten metals.
- This means can comprise a washer 34 of an insulating material such as cardboard or fibrous aluminum silicate interposed be- 'tween the cover 24 and collar 22 and between the U-bolt 29and collar 22.
- a sm-all'ball of aluminum wire 38 can be placed in the mouth' of mold cavity 12 to kill the steel.
- Apparatus for obtaining a solidified sample of molten metal which comprises 'a mold open at one end and having a sample cavity, the exterior of said mold having a lower portion and an upper portion, said mold being capable of absorbing heat sufficient to substantially solidify molten metal filling said cavity, a heat insulating sleeve surrounding the lower portion of the mold,
- the apparatus of claim. 5 in which the means for preventingwelding of the cover to the mold comprises a washer of insulating material interposed between the cover and the collar and between the retaining means a and the collar.
- the apparatus of claim 1 which has means for preventing welding of the cover to the mold.
- Apparatus for obtaining a solidified sample of molten steel which comprises a mold open at one end and having a sample cavity, the exterior of said mold having a lower portion and an upper portion, said mold being capable of absorbing heat sufiicient to substantially solidify molten metal filling said cavity,
- Apparatus for obtaining a solidified, sample of' molten steel which comprises a mold open at one end and having a sample cavity, a the exterior of said mold having a lower portion and.
- said mold being capable of absorbing heat sufiicient to substantially solidify molten metal filling said cavity, a
- said retaining means being capable of releasing the cover after submergence in the molten metal
- Apparatus for obtaining a solidified sample of' molten steel which comprises a mold open at one end and having a sample cavity,
- said mold having a lower portion and an upper portion, said moldbeing capable of absorbing heat sufficient to substantially solidify molten metal filling said cavity,
- a cover for the open end of the mold cornprising a sealing member attached to a-buoyant memher, said sealing member substantially sealing the open end of the mold, V means for temporarily retaining the cover in position,
- said retaining means being capable of releasing the cover after submergence in the molten metal
- Apparatus for obtaining a solidified sample of molten steel which comprises a mold open at one end and having a sample cavity, the exterior of said mold having a lower portion and an upper portion, said mold being capable of 5 absorbing heat suflicient to substantially solidify molten metal filling said cavity,
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- Hydrology & Water Resources (AREA)
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Sampling And Sample Adjustment (AREA)
Description
May 30, 1967 P. 1.. JACKSON MOLTEN METAL SAMPLING APPARATUS 2 Sheets-Sheet 1 Filed July 29, 1965 PA UL LJAcka/v INVENTOR y-5 .1967 P.|..JAK$Q- 3,321 1 MOLTEN METAL SAMPLING APPARATUS Filed July 29, 1965 2 Sheets$heet 2 INVENTOR ATTORNEYS PAUL LJACKSON United States Patent 3 321,978 MOLTEN METAL SAMPLING APPARATUS Paul L. Jackson, Dearborn, Mich., assiguor to Ford Motor Company, Dearborn, Mich., a corporation of Delaware Filed July 29, 1965, Ser. No. 475,739 18 Claims. (Cl. 73425.4)
ABSTRACT OF THE DISCLOSURE This disclosure describes apparatus for obtaining solidified samples of molten metal such as steel. A metal mold positioned in an insulating jacket has a frangible collar surrounding the upper portion of the mold. A buoyant cover seals the opening of the mold until the mold is under the slag layer and a U-bolt assembly retaining the cover in place then melts to release the cover. The cover floats away carrying with it any adhered slag and permitting the mold cavity to fill with a sample accurately representative of the molten metal. A washer of insulating material can be interposed between cover, mold and U- bolt to prevent the molten metal from welding these items together before a sample has filled the mold.
After the apparatus has been removed from the molten metal, the frangible collar is shattered to facilitate easy removal of the sample from the mold. The apparatus is particularly useful in obtaining samples of molten steel from which the oxygen content of the steel can be determined accurately.
This invention concerns an apparatus and a process for obtaining a solidified sample of molten metal. In particular, this invention is useful in obtaining solidified samples of molten steel from which the oxygen content -of the steel can be accurately determined.
Spoon sampling of molten metal by taking a slagged spoon of metal from the furnace, skimming off the slag, immediately killing the sample with aluminum wire, and solidifying the killed sample produces inaccurate results because of oxidation of the sample by the slag and the surrounding air. Improvements in spoon sampling included the use of a mold having a cover to prevent entry of slag into the sample when the mold is inserted through the slag layer. These molds were made with sufficient mass to absorb the heat necessary to solidify the sample while immersed in the molten metal. With these molds samples could be taken and solidified without exposure to air. Difficulties involved in the use of these molds included adherence of slag to the cover during insertion through the slag layer with subsequent entry of slag into the sample, removal of the solidified sample from the mold and preparation of the solidified sample for analysis.
Apparatus provided by this invention for obtaining a solidified sampleof molten metal comprises a mold open at one end and having a sample cavity, the exterior of said mold having a lower portion and an upper portion, said mold being capable of absorbing heat sufficient to substantially solidify molten metal filling-said cavity, a heat insulating sleeve surrounding the lower portion of the mold, a frangible collar surrounding at least part of the upper portion of the mold; a cover for the open end of the mold, said cover comprising a sealing member associated with a buoyant member, said sealing member substantially sealing the open end of the mold; means for temporarily retaining the cover in position, said retaining means being capable of releasing the cover after submergence in the molten metal; and means for submerging the mold into and removing the mold from the molten metal. Reproducibility of oxygen content determinations of molten steel using apparatus of this invention averages about 0.003% as compared with variations of nearly .02% when using the spoon sampling molds of the prior art. Many of the difficulties encountered when using spoon sampling molds of the prior art, including those listed above, are also overcome when using apparatus of this invention.
FIGURE 1 of the drawings is an exploded view of the sampling apparatus of this invention;
FIGURE 2 is an assembly view of this apparatus;
FIGURE 3 shows the apparatus after removal from the molten metal with a solidified sample;
FIGURE 4 is a partially exploded cross section of the apparatus shown in FIGURE 3.
FIGURE 1 shows a mold 10 having an inwardly tapered sample cavity 12 and an outwardly tapered upper portion 16 which simplify removal of the solidified sample, especially when the mold is of unit construction. The mass of mold 10 is suflicient to absorb enough heat from the sample of molten metal eventually filling cavity 12 to substantially solidify that metal while the apparatus of this invention is submerged in the molten metal. Materials of construction for mold 10 are preferably capable of conducting heat away from the molten metal filling the mold cavity with sufficient rapidity to prevent substantial adherence of the sample after solidification to the mold. Copper, silver, or alloys, are preferred materials of construction for mold 10 because of high heat conductivities, high melting points and decreased tendency to weld to the molten steel sample. Copper, of course, is more economical to use than silver. If desired, upper portion 16 can have a straight lower section 17. Mold 10 is preferably of unit construction but can be of the split type; The lower portion 14 of mold 10 is surrounded by a heat insulating sleeve 20 which prevents substantial loss of the heat capacity of mold 10 to surrounding molten metal. Ceramic coated steel 42 is preferably used as sleeve 20 because of excellent strength and insulating properties.
Surrounding part of the length of upper portion 16 is a frangible collar 22. Collar 22 is preferably made of ceramic materials, such as zircon, to provide additional heat insulation. If desired, additional strength can be imparted to collar 22 by wrapping collar 22 with wire 23. By covering the joint 13 between sleeve 20 and upper portion 16 with collar 22, entry of molten metal into the .space between sleeve 20 and the lower portion 14 of molten metal being sampled. Wood is preferred for block 26 when sampling molten steel because of economy, ease of fabrication and efiicient operation. Ceramics or other materials having buoyancy in the molten metal being sampled can also be used. Metal plate 25 substantially seals the open end of mold 10 to prevent slag from entering the mold cavity 12. A recessed area 27 can be provided in cover-24 if desired;
Provided for submerging the mold 10 into and removing the mold from the molten metal is pipe 44 attached by means of bolt 46 to steel bar 47. Bar 47 is attached in turn to bolt assembly 48, thereby forming a U-shaped assembly to allow submerging of mold 10 in a substantially upright position. Surrounding this U-shaped assembly of pipe 44, bolt 46, bar 47, and bolt assembly 48, is an insulating fibrous material 50 coated with a ceramic insulating coating 52. A typical fibrous material is fibrous aluminum silicate. Aluminum silicate can also be used as the insulating coating. Mold 10 is threadably attached to bolt assembly 48 with washers 36 interposed to prevent fouling of the threads by molten metal. Washers 36 can also be made of fibrous aluminum silicate. Handle assemblies made in this manner can be used several times to obtainsamples of molten steel before requiring patching.
A solidified sample of molten metal is obtained according to thisinvention by submerging the apparatus of this invention in the molten metal; holding apparatus submerged until the cover 24 is released allowing the cavity 12 to substantially fill with molten metal; removing the a 'mold from the molten metal; breaking frangible collar 22 and removing sample 40 from the mold cavity 12. The frangible nature of collar 22 is useful in promoting rapid removal of samples from the mold cavity. After removal of collar 22 the solidified sample 40 ordinarily has a mushroom-shaped head 41 which can be gripped with pliers to remove sample 40 from cavity 12. Sample 40 is of the pin type from which samples for analysis can be easily machined. By designing retaining means 28 to release cover 24 after a certain immersion time, samples from various depths of submergence can be accurately taken with apparatus of this invention.
Means for preventing welding of cover 24 to the mold assembly, whereby cavity 12 is not properly filled with a sample, are desirable in'apparatus of this invention when sampling certainmolten metals. This means can comprise a washer 34 of an insulating material such as cardboard or fibrous aluminum silicate interposed be- 'tween the cover 24 and collar 22 and between the U-bolt 29and collar 22. When sampling steels, a sm-all'ball of aluminum wire 38 can be placed in the mouth' of mold cavity 12 to kill the steel.
What'is claimed is: e 1. Apparatus for obtaining a solidified sample of molten metal which comprises 'a mold open at one end and having a sample cavity, the exterior of said mold having a lower portion and an upper portion, said mold being capable of absorbing heat sufficient to substantially solidify molten metal filling said cavity, a heat insulating sleeve surrounding the lower portion of the mold,
a frangible collar surrounding at least part of the upper portion of the mold, r a buoyant cover for the open end of the mold,
means for temporarily retaining the cover in position, said retaining means being capable of releasing the cover after submergence in the molten metal, and
. means'for submerging the mold into and removing the mold from the molten metal. 7 V 2. The apparatus of claim 1 in which the mold has an inwardly tapered cavity. I
3. The apparatus of claim 2 in which the mold is of unit construction.
' 4. The apparatusof claim 3 in which the mold has an outwardly tapered upper portion.
5. The apparatus of claim 4 which has means for preventing the welding of the cover to the mold.
'6. The apparatus of claim. 5 in which the means for preventingwelding of the cover to the mold comprises a washer of insulating material interposed between the cover and the collar and between the retaining means a and the collar.
7. The apparatus of claim 6 in which the mold is capable of conducting heat away from the molten metal filling the mold cavity with sulficient rapidity to prevent substantial adhesion of the solidified sample to the mold.
8. The apparatus of claim 7 in which the mold is essentially copper, silver or alloys thereof.
9. The apparatus of claim 8 in which the buoyant cover comprises a wood block.
10. The apparatus of claim 1 in which the mold is capable of conducting heat away from the molten metal filling the mold cavity With sufficient rapidity to prevent substantial welding of the metal rafter solidification to the mold.
11. The apparatus of claim 1 which has means for preventing welding of the cover to the mold.
12. The apparatus of claim 1 in which the mold has anoutwardly tapered upper portion.
13. The apparatus of claim 1 in which the cover comprises a wood block.
14. The apparatus of claim 1 in which the mold is" essentially copper, silver or alloys thereof.
15. Apparatus for obtaining a solidified sample of molten steel which comprises a mold open at one end and having a sample cavity, the exterior of said mold having a lower portion and an upper portion, said mold being capable of absorbing heat sufiicient to substantially solidify molten metal filling said cavity,
a heat insulating sleeve surrounding the lower portion of the mold,
a frangible collar surrounding at least part of the upper 1 16. Apparatus for obtaining a solidified, sample of' molten steel which comprises a mold open at one end and having a sample cavity, a the exterior of said mold having a lower portion and.
an upper portion, said mold being capable of absorbing heat sufiicient to substantially solidify molten metal filling said cavity, a
a heat insulating sleeve surrounding the lower portionof the mold,
a frangible collar surrounding at least part of the upper portion of the mold,
-=a buoyant cover for the open end of the mold,
means for temporarily retaining the cover in position,
said retaining means being capable of releasing the cover after submergence in the molten metal, and
means for submerging the mold into and removing the mold from the molten metal.
17. Apparatus for obtaining a solidified sample of' molten steel which comprises a mold open at one end and having a sample cavity,
the exterior of said mold having a lower portion and an upper portion, said moldbeing capable of absorbing heat sufficient to substantially solidify molten metal filling said cavity,
a .fran'gible collar surrounding at least part of the upper portion of the mold,
a cover for the open end of the mold, said cover cornprising a sealing member attached to a-buoyant memher, said sealing member substantially sealing the open end of the mold, V means for temporarily retaining the cover in position,
said retaining means being capable of releasing the cover after submergence in the molten metal, and
means for submerging the mold into and removing the mold from'the molten metal.
buoyant 18. Apparatus for obtaining a solidified sample of molten steel which comprises a mold open at one end and having a sample cavity, the exterior of said mold having a lower portion and an upper portion, said mold being capable of 5 absorbing heat suflicient to substantially solidify molten metal filling said cavity,
a frangible collar surrounding at least part of the upper portion of the mold,
a buoyant cover for the open end of the mold,
means for temporarily retaining the cover in position, said retaining means being capable of releasing the cover after submergence in the molten metal, and
means for submerging the mold into and removing the mold from the molten metal.
References Cited UNITED STATES PATENTS 2,970,350 2/ 1961 Feichinger 73-425.6 3,221,559 12/1965 Miller et al. 73425.4
DAVID SCHONBERG, Primary Examiner.
0 LoUIs R. PRINCE, Examiner.
S. C. SWISHER, Assistalnt Examiner.
Claims (1)
18. APPARATUS FOR OBTAINING A SOLIDIFIED SAMPLE COMPRISES MOLTEN STEEL WHICH COMPRISES A MOLD OPEN AT ONE END AND HAVING A SAMPLE CAVITY, THE EXTERIOR OF SAID MOLD HAVING A LOWER PORTION AND AN UPPER PORTION, SAID MOLD BEING CAPABLE OF ABSORBING HEAT SUFFICIENT TO SUBSTANTIALLY SOLIDIFY MOLTEN METAL FILLING SAID CAVITY, A FRANGIBLE COLLAR SURROUNDING AT LEAST PART OF THE UPPER PORTION OF THE MOLD, ABUOYANT COVER FOR THE OPEN END OF THE MOLD, MEANS FOR TEMPORARILY RETAINING THE COVER IN POSITION, SAID RETAINING MEANS BEING CAPABLE OF RELEASING THE COVER AFTER SUBMERGENCE IN THE MOLTEN METAL, AND MEANS FOR SUBMERGING THE MOLD INTO AND REMOVING THE MOLD FROM THE MOLTEN METAL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US475739A US3321978A (en) | 1965-07-29 | 1965-07-29 | Molten metal sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US475739A US3321978A (en) | 1965-07-29 | 1965-07-29 | Molten metal sampling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3321978A true US3321978A (en) | 1967-05-30 |
Family
ID=23888907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US475739A Expired - Lifetime US3321978A (en) | 1965-07-29 | 1965-07-29 | Molten metal sampling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3321978A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3577886A (en) * | 1969-10-13 | 1971-05-11 | Leeds & Northrup Co | Device for immersion in molten material to sample and/or measure temperature |
| US3686949A (en) * | 1970-02-19 | 1972-08-29 | Robert J Hackett | Sampling devices and powder diffusion containers for use with molten metal |
| US3704621A (en) * | 1970-09-29 | 1972-12-05 | Nat Steel Corp | Sampling bomb and method of sampling and analyzing a heat of unkilled steel |
| US3994172A (en) * | 1974-03-20 | 1976-11-30 | Robert C. Collins | Molten metal sampler |
| US6811742B2 (en) * | 2001-09-28 | 2004-11-02 | Heraeus Electro-Nite International N.V. | Sampler for melts |
| US20050132823A1 (en) * | 2003-12-19 | 2005-06-23 | Heraeus Electro-Nite International N.V. | Sampling device |
| US20100122590A1 (en) * | 2008-11-17 | 2010-05-20 | Heraeus Electro-Nite International N.V. | Device for sampling metal melts |
| US20210370286A1 (en) * | 2018-06-12 | 2021-12-02 | Heraeus Electro-Nite International N.V. | Molten metal sampler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2970350A (en) * | 1957-06-01 | 1961-02-07 | Fischer Ag Georg | Method of and device for the evacuation of chill moulds |
| US3221559A (en) * | 1963-09-16 | 1965-12-07 | Harbison Walker Refractories | Immersion sampler |
-
1965
- 1965-07-29 US US475739A patent/US3321978A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2970350A (en) * | 1957-06-01 | 1961-02-07 | Fischer Ag Georg | Method of and device for the evacuation of chill moulds |
| US3221559A (en) * | 1963-09-16 | 1965-12-07 | Harbison Walker Refractories | Immersion sampler |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3577886A (en) * | 1969-10-13 | 1971-05-11 | Leeds & Northrup Co | Device for immersion in molten material to sample and/or measure temperature |
| US3686949A (en) * | 1970-02-19 | 1972-08-29 | Robert J Hackett | Sampling devices and powder diffusion containers for use with molten metal |
| US3704621A (en) * | 1970-09-29 | 1972-12-05 | Nat Steel Corp | Sampling bomb and method of sampling and analyzing a heat of unkilled steel |
| US3994172A (en) * | 1974-03-20 | 1976-11-30 | Robert C. Collins | Molten metal sampler |
| US6811742B2 (en) * | 2001-09-28 | 2004-11-02 | Heraeus Electro-Nite International N.V. | Sampler for melts |
| US20050132823A1 (en) * | 2003-12-19 | 2005-06-23 | Heraeus Electro-Nite International N.V. | Sampling device |
| US8001856B2 (en) | 2003-12-19 | 2011-08-23 | Heraeus Electro-Nite International N.V. | Sampling device |
| US20100122590A1 (en) * | 2008-11-17 | 2010-05-20 | Heraeus Electro-Nite International N.V. | Device for sampling metal melts |
| US8141439B2 (en) | 2008-11-17 | 2012-03-27 | Heraeus Electro-Nite International N.V. | Device for sampling metal melts |
| US20210370286A1 (en) * | 2018-06-12 | 2021-12-02 | Heraeus Electro-Nite International N.V. | Molten metal sampler |
| US11660594B2 (en) * | 2018-06-12 | 2023-05-30 | Heraeus Electro-Nite International N.V. | Molten metal sampler |
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