EP2899484A1 - Replaceable melting furnace body and method for producing the same - Google Patents
Replaceable melting furnace body and method for producing the same Download PDFInfo
- Publication number
- EP2899484A1 EP2899484A1 EP14162611.9A EP14162611A EP2899484A1 EP 2899484 A1 EP2899484 A1 EP 2899484A1 EP 14162611 A EP14162611 A EP 14162611A EP 2899484 A1 EP2899484 A1 EP 2899484A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- replaceable
- furnace body
- space
- housing
- melting furnace
- 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.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/28—Melting pots
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
Definitions
- This invention relates to a melting furnace and a method for producing the same, more particularly to a replaceable melting furnace adapted for melting a metal therein.
- Taiwanese Patent No. I280166 discloses a conventional melting furnace used in a die casting machine.
- the melting furnace is adapted for melting a metal and holding the molten metal.
- the melting furnace has to be replaced when a surface of the melting furnace that contacts the molten metal is damaged by the molten metal. Therefore, the maintenance cost is relatively high.
- FIG. 1 another conventional melting furnace 9 is shown to include a metal housing 91, a thermal insulating layer 92 disposed in the housing 91, a graphite crucible 93 disposed in the thermal insulating layer 92, and a heating module 94 disposed between the graphite crucible 93 and the thermal insulating layer 92.
- the graphite crucible 93 is heated by the heating module 94 so as to melt aluminum ingots (not shown) inside the graphite crucible 93 to obtain a molten aluminum.
- the graphite crucible 93 can be independently replaced when damaged, and there is no need to replace the entire melting furnace 9.
- the graphite crucible 93 is easily damaged due to different thermal expansion coefficients of the graphite crucible 93 and the metal. Furthermore, the graphite crucible 93 will be gradually eroded by the molten aluminum, and has to be regularly replaced at intervals of about six to eight months, thereby resulting in an increase in maintenance costs.
- the aluminum ingots usually contain impurities.
- the impurities will float on a surface of the molten aluminum.
- the molten aluminum is scooped out of the graphite crucible 93 for subsequent use, the molten aluminum containing the impurities would adversely affect the quality and the yield of a product made from the molten aluminum.
- the object of the present invention is to provide a replaceable melting furnace that can overcome at least one of the aforesaid drawbacks of the prior art.
- a replaceable melting furnace that includes a replaceable furnace body including a main body and a partition plate.
- the main body has an open end and defines a receiving space therein.
- the receiving space is divided into an upper space and a lower space.
- the partition plate extends from the open end into the upper space to divide the upper space into first and second subspaces that are fluidly communicated with each other through the lower space.
- Figs. 2 , 3 and 4 show the preferred embodiment of a replaceable melting furnace 2 according to the present invention.
- the replaceable melting furnace 2 is adapted for melting a metal and holding the molten metal therein, and includes a replaceable furnace body 21, a housing 22 and a thermal insulating layer 23.
- the replaceable furnace body 21 includes a main body 211 having an open end 213 and defining a receiving space 214 therein, and a partition plate 212.
- the receiving space 214 is divided into an upper space 215 and a lower space 216.
- the partition plate 212 extends from the open end 213 into the upper space 215 to divide the upper space 215 into first and second subspaces 2151, 2152 that are fluidly communicated with each other through the lower space 216.
- the replaceable furnace body 21 is made of a castable refractory material selected from the group consisting of clay, aluminum oxide (Al 2 O 3 ), and the combination thereof.
- the partition plate 212 has a vertical height (H1) that is about one third of a maximum vertical height (H2) of the replaceable furnace body 21 (see Fig. 4 ).
- the housing 22 is made of metal and defines a recess 221 for accommodating the replaceable furnace body 21.
- the housing 22 can be made by, for example, machine work.
- the thermal insulating layer 23 is disposed between the housing 22 and the replaceable furnace body 21.
- the replaceable furnace body 21 is detachably connected to the thermal insulating layer 23.
- the thermal insulating layer 23 is made of a fiberglass insulating material. It is noted that the thermal insulating layer 23 may be omitted depending on actual requirements. In such case, the replaceable furnace body 21 is detachably connected to the housing 22.
- the preferred embodiment of a method for producing the aforesaid replaceable melting furnace 2 according to the present invention includes the following steps of:
- each of the lower mold 41 and the extending member 422 may be made of several components that are designed to be easily assembled and disassembled.
- the groove 424 of the upper portion 423 of the extending member 422 corresponds in position to the partition plate 212 of the replaceable furnace body 21.
- the mold cavity formed between the lower mold 41 and the extending member 422 of the upper mold 42 corresponds in position to the main body 211 of the replaceable furnace body 21.
- the mounting member 421 and the extending member 422 of the upper mold 42 are detachably and intimately connected to each other.
- the mounting member 421 and the extending member 422 of the upper mold 42 can be formed as one piece.
- the extending member 422 is made of styrofoam.
- the refractory material is naturally solidified to form the replaceable furnace body 21 without using a machine tool.
- step (c) is conducted at 600 °C for 24 hours.
- step (d) the replaceable furnace body 21 is disposed into a housing 22 in such a manner that the replaceable furnace body 21 is detachably connected to the housing 22.
- the replaceable melting furnace 2 can be used in a molten metal supply device, such as a device disclosed in Taiwanese Utility Model No. M444231 .
- metal ingots such as aluminum ingots
- the replaceable furnace body 21 is melted to form a molten metal liquid with a liquid surface higher than a lower end of the partition plate 212.
- the liquid surface is divided into two sub-surfaces in the first and second sub-spaces 2151, 2152 of the upper space 215 of the receiving space 214.
- Impurities contained in the metal ingots would float on the liquid sub-surfaces.
- the impurities floating on the second sub-space 2152 is removed.
- the partition plate 212 the purity of the molten metal taken out from the second sub-space 2152 of the replaceable furnace body 21 can be improved.
- the replaceable melting furnace 2 has a longer service life than the conventional melting furnace since the replaceable furnace body 21 is made of the refractory material and does not need to be replaced frequently, thereby reducing maintenance costs.
- replaceable furnace body 21 is detachably connected to the housing 22/the thermal insulating layer 23, when the replaceable furnace body 21 is damaged, only the replaceable furnace body 21 needs to be replaced instead of the entire replaceable melting furnace 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Resistance Heating (AREA)
- Furnace Details (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
A replaceable melting furnace (2) includes a replaceable furnace body (21) having a main body (211) that has an open end (213) and that defines a receiving space (214) therein, and a partition plate (212). The receiving space (214) is divided into an upper space (215) and a lower space (216). The partition plate (212) extends from the open end (213) into the upper space (215) to divide the upper space (215) into first and second subspaces (2151, 2152) that are fluidly communicated with each other through the lower space (216). A method for producing the aforesaid replaceable melting furnace (2) is also disclosed.
Description
- This invention relates to a melting furnace and a method for producing the same, more particularly to a replaceable melting furnace adapted for melting a metal therein.
- Taiwanese Patent No.
I280166 - Referring to
Fig. 1 , anotherconventional melting furnace 9 is shown to include ametal housing 91, athermal insulating layer 92 disposed in thehousing 91, agraphite crucible 93 disposed in thethermal insulating layer 92, and aheating module 94 disposed between thegraphite crucible 93 and thethermal insulating layer 92. When themelting furnace 9 is operated, thegraphite crucible 93 is heated by theheating module 94 so as to melt aluminum ingots (not shown) inside thegraphite crucible 93 to obtain a molten aluminum. In this case, thegraphite crucible 93 can be independently replaced when damaged, and there is no need to replace theentire melting furnace 9. - Moreover, when the
melting furnace 9 is not operated and the metal is cooled down and is still disposed in thegraphite crucible 93, thegraphite crucible 93 is easily damaged due to different thermal expansion coefficients of thegraphite crucible 93 and the metal. Furthermore, thegraphite crucible 93 will be gradually eroded by the molten aluminum, and has to be regularly replaced at intervals of about six to eight months, thereby resulting in an increase in maintenance costs. - In addition, the aluminum ingots usually contain impurities. When the aluminum ingots are melted in the graphite crucible 93, the impurities will float on a surface of the molten aluminum. When the molten aluminum is scooped out of the
graphite crucible 93 for subsequent use, the molten aluminum containing the impurities would adversely affect the quality and the yield of a product made from the molten aluminum. - Therefore, the object of the present invention is to provide a replaceable melting furnace that can overcome at least one of the aforesaid drawbacks of the prior art.
- According to one aspect of the present invention, there is provided a replaceable melting furnace that includes a replaceable furnace body including a main body and a partition plate. The main body has an open end and defines a receiving space therein. The receiving space is divided into an upper space and a lower space. The partition plate extends from the open end into the upper space to divide the upper space into first and second subspaces that are fluidly communicated with each other through the lower space.
- According to another aspect of the present invention, there is provided a method for producing the aforesaid replaceable melting furnace that includes the steps of:
- (a) preparing a mold unit that includes a lower mold having an open end and defining an accommodating space therein, and an upper mold including a mounting member and an extending member that is connected to the mounting member, the mounting member having an inlet, the extending member having an upper portion that is formed with a groove to divide the upper portion into two parts and that is intimately connected to the mounting member, the mounting member being connected to the open end of the lower mold and the extending member extending into the accommodating space such that a mold cavity is formed between the lower mold and the extending member of the upper mold;
- (b) filling a refractory material in the groove and the mold cavity through the inlet of the mounting member of the upper mold, followed by solidifying the refractory material to form the replaceable furnace body; and
- (c) sintering the replaceable furnace body.
- Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment of this invention, with reference to the accompanying drawings, in which:
-
Fig. 1 is a perspective view of a conventional melting furnace; -
Fig. 2 is an assembled partly cutaway perspective view of the preferred embodiment of a replaceable melting furnace according to this invention; -
Fig. 3 is an exploded perspective view of the preferred embodiment; -
Fig. 4 is an enlarged perspective view showing a replaceable furnace body of the preferred embodiment; -
Fig. 5 is a flowchart of the preferred embodiment of a method for producing the replaceable melting furnace according to this invention; and -
Fig. 6 is an exploded perspective view of a mold unit used in the method of the preferred embodiment. -
Figs. 2 ,3 and4 show the preferred embodiment of areplaceable melting furnace 2 according to the present invention. Thereplaceable melting furnace 2 is adapted for melting a metal and holding the molten metal therein, and includes areplaceable furnace body 21, ahousing 22 and athermal insulating layer 23. - The
replaceable furnace body 21 includes amain body 211 having anopen end 213 and defining areceiving space 214 therein, and apartition plate 212. Thereceiving space 214 is divided into anupper space 215 and alower space 216. Thepartition plate 212 extends from theopen end 213 into theupper space 215 to divide theupper space 215 into first andsecond subspaces lower space 216. Thereplaceable furnace body 21 is made of a castable refractory material selected from the group consisting of clay, aluminum oxide (Al2O3), and the combination thereof. Preferably, thepartition plate 212 has a vertical height (H1) that is about one third of a maximum vertical height (H2) of the replaceable furnace body 21 (seeFig. 4 ). - The
housing 22 is made of metal and defines arecess 221 for accommodating thereplaceable furnace body 21. Thehousing 22 can be made by, for example, machine work. - The
thermal insulating layer 23 is disposed between thehousing 22 and thereplaceable furnace body 21. Thereplaceable furnace body 21 is detachably connected to thethermal insulating layer 23. In this embodiment, thethermal insulating layer 23 is made of a fiberglass insulating material. It is noted that thethermal insulating layer 23 may be omitted depending on actual requirements. In such case, thereplaceable furnace body 21 is detachably connected to thehousing 22. - Referring to
Figs. 5 and6 , the preferred embodiment of a method for producing the aforesaidreplaceable melting furnace 2 according to the present invention includes the following steps of: - (a) preparing a
mold unit 4 that includes alower mold 41 having anopen end 411 and defining anaccommodating space 412 therein, and anupper mold 42 including amounting member 421 and an extendingmember 422 that is connected to themounting member 421, themounting member 421 having aninlet 4211, the extendingmember 422 having anupper portion 423 that is formed with agroove 424 to divide theupper portion 423 into twoparts 425 and that is intimately connected to themounting member 421, themounting member 421 being connected to theopen end 411 of thelower mold 41 and the extendingmember 422 extending into theaccommodating space 412 such that a mold cavity is formed between thelower mold 41 and the extendingmember 422 of theupper mold 42; - (b) filling a refractory material in the
groove 424 and the mold cavity through theinlet 4211 of themounting member 421 of theupper mold 42, followed by solidifying the refractory material to form thereplaceable furnace body 21; - (c) sintering the
replaceable furnace body 21; and - (d) disposing the
replaceable furnace body 21 into ahousing 22 and disposing a thermalinsulating layer 23 between thereplaceable furnace body 21 and thehousing 22 in such a manner that thereplaceable furnace body 21 is detachably connected to thethermal insulating layer 23. - In step (a), each of the
lower mold 41 and the extendingmember 422 may be made of several components that are designed to be easily assembled and disassembled. Thegroove 424 of theupper portion 423 of the extendingmember 422 corresponds in position to thepartition plate 212 of thereplaceable furnace body 21. The mold cavity formed between thelower mold 41 and the extendingmember 422 of theupper mold 42 corresponds in position to themain body 211 of thereplaceable furnace body 21. In this embodiment, themounting member 421 and the extendingmember 422 of theupper mold 42 are detachably and intimately connected to each other. However, in other embodiments, themounting member 421 and the extendingmember 422 of theupper mold 42 can be formed as one piece. In this embodiment, the extendingmember 422 is made of styrofoam. - In this embodiment, the refractory material is naturally solidified to form the
replaceable furnace body 21 without using a machine tool. - Preferably, step (c) is conducted at 600 °C for 24 hours.
- It is noted that the
thermal insulating layer 23 may be omitted depending on actual requirements. In this case, in step (d), thereplaceable furnace body 21 is disposed into ahousing 22 in such a manner that thereplaceable furnace body 21 is detachably connected to thehousing 22. - The
replaceable melting furnace 2 can be used in a molten metal supply device, such as a device disclosed in Taiwanese Utility Model No.M444231 replaceable furnace body 21 and melted to form a molten metal liquid with a liquid surface higher than a lower end of thepartition plate 212. To be specific, the liquid surface is divided into two sub-surfaces in the first andsecond sub-spaces upper space 215 of thereceiving space 214. Impurities contained in the metal ingots would float on the liquid sub-surfaces. Preferably, the impurities floating on thesecond sub-space 2152 is removed. Then, additional metal ingots are gradually placed into thereplaceable furnace body 21 through thefirst sub-space 2151 such that the metal ingots gradually sink into thefirst sub-space 2151 and are mainly melted in thefirst sub-space 2151. As such, the impurities of the metal ingots mainly float on the liquid sub-surface in thefirst sub-space 2151. Therefore, the amount of impurities in thesecond sub-space 2152 can be greatly reduced. The molten metal with relatively high purity in thesecond sub-surface 2152 can be taken out from thereplaceable melting furnace 2 for subsequent use. - Therefore, with the
partition plate 212, the purity of the molten metal taken out from thesecond sub-space 2152 of thereplaceable furnace body 21 can be improved. - Moreover, the
replaceable melting furnace 2 according to this invention has a longer service life than the conventional melting furnace since thereplaceable furnace body 21 is made of the refractory material and does not need to be replaced frequently, thereby reducing maintenance costs. - In addition, since the
replaceable furnace body 21 is detachably connected to thehousing 22/the thermal insulatinglayer 23, when thereplaceable furnace body 21 is damaged, only thereplaceable furnace body 21 needs to be replaced instead of the entirereplaceable melting furnace 2.
Claims (10)
- A replaceable melting furnace (2) for melting a metal therein, said replaceable melting furnace (2) being characterized by:a replaceable furnace body (21) having:a main body (211) that has an open end (213) and that defines a receiving space (214) therein, said receiving space (214) being divided into an upper space (215) and a lower space (216); anda partition plate (212) that extends from said open end (213) into said upper space (215) to divide said upper space (215) into first and second subspaces (2151, 2152) that are fluidly communicated with each other through said lower space (216).
- The replaceable melting furnace (2) as claimed in claim 1, characterized in that said replaceable furnace body (21) is made of a castable refractory materal.
- The replaceable melting furnace (2) as claimed in claim 1, further characterized by a housing (22) made of metal and defining a recess (221) for accommodating said replaceable furnace body (21), said replaceable furnace body (21) being detachably connected to said housing (22).
- The replaceable melting furnace (2) as claimed in claim 1, further characterized by a housing (22) made of metal and a thermal insulating layer (23) disposed between said housing (22) and said replaceable furnace body (21), said replaceable furnace body (21) being detachably connected to said thermal insulating layer (23).
- The replaceable melting furnace (2) as claimed in claim 4, characterized in that the thermal insulating layer (23) is made of a fiberglass insulating material.
- A method for producing a replaceable melting furnace (2) as claimed in claim 1, characterized by the steps of:(a) preparing a mold unit (4) that includes a lower mold (41) having an open end (411) and defining an accommodating space (412) therein, and an upper mold (42) including a mounting member (421) and an extending member (422) that is connected to the mounting member (421), the mounting member (421) having an inlet (4211), the extending member (422) having an upper portion (423) that is formed with a groove (424) to divide the upper portion (423) into two parts (425) and that is intimately connected to the mounting member (421), the mounting member (421) being connected to the open end (411) of the lower mold (41) and the extending member (422) extending into the accommodating space (412) such that a mold cavity is formed between the lower mold (41) and the extending member (422) of the upper mold (42);(b) filling a refractory material in the groove (424) and the mold cavity through the inlet (4211) of the mounting member (421) of the upper mold (42), followed by solidifying the refractory material to form the replaceable furnace body (21); and(c)sintering the replaceable furnace body (21).
- The method as claimed in claim 6, characterized in that, in step (b), the refractory material is a castable refractory material.
- The method as claimed in claim 6, characterized in that step (c) is conducted at 600 °C for 24 hours.
- The method as claimed in claim 6, characterized by, after step (c), a step (d) of disposing the replaceable furnace body (21) into a housing (22) in such a manner that the replaceable furnace body (21) is detachably connected to the housing (22).
- The method as claimed in claim 6, characterized by, after step (c), a step (d) of disposing the replaceable furnace body (21) into a housing (22) and disposing a thermal insulating layer (23) between the replaceable furnace body (21) and the housing (22) in such a manner that the replaceable furnace body (21) is detachably connected to the thermal insulating layer (23).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW103103180A TW201529203A (en) | 2014-01-28 | 2014-01-28 | Method of manufacturing replaceable stove and product thereof |
Publications (1)
Publication Number | Publication Date |
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EP2899484A1 true EP2899484A1 (en) | 2015-07-29 |
Family
ID=50433978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14162611.9A Withdrawn EP2899484A1 (en) | 2014-01-28 | 2014-03-31 | Replaceable melting furnace body and method for producing the same |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2899484A1 (en) |
JP (1) | JP2015139822A (en) |
KR (1) | KR20150089902A (en) |
CN (1) | CN104801689A (en) |
TW (1) | TW201529203A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109252054A (en) * | 2018-09-13 | 2019-01-22 | 洛阳新远大冶金成套设备有限公司 | The manufacturing method of molten metal degasification tank and its cabinet |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1136778A1 (en) * | 1998-10-23 | 2001-09-26 | Nippon Crucible Co., Ltd. | Melting/retaining furnace for aluminum ingot |
EP1365201A1 (en) * | 2002-05-14 | 2003-11-26 | Howmet Research Corporation | Melting crucible and method |
TWI280166B (en) | 2002-12-26 | 2007-05-01 | Toshiba Machine Co Ltd | Liquid material feed apparatus of die casting machine, liquid material feed method, and ladle |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05161959A (en) * | 1991-12-11 | 1993-06-29 | Kurosaki Refract Co Ltd | Vessel for molten metal |
US5395096A (en) * | 1993-12-29 | 1995-03-07 | Praxair Technology, Inc. | Drop-in furnace lining |
JP3016124B2 (en) * | 1995-12-28 | 2000-03-06 | 本田技研工業株式会社 | Molten container and aluminum holding furnace |
TWM254453U (en) * | 2004-03-12 | 2005-01-01 | Hon Hai Prec Ind Co Ltd | Apparatus of molding glass |
JP2007131495A (en) * | 2005-11-11 | 2007-05-31 | Mitsui Eng & Shipbuild Co Ltd | Refractory material, and waste incinerating/melting furnace |
JP2009045645A (en) * | 2007-08-20 | 2009-03-05 | Nippon Crucible Co Ltd | Molten metal holding furnace |
KR20090007166U (en) * | 2008-01-11 | 2009-07-15 | 주식회사 알텍캐스트 | Partition type crucible of furnace |
JPWO2009142160A1 (en) * | 2008-05-20 | 2011-09-29 | 日本坩堝株式会社 | Molten metal holding furnace |
CN102419094A (en) * | 2010-09-25 | 2012-04-18 | 江西耀升工贸发展有限公司 | Method for preparing vertical intermediate-frequency furnace by integrally casting and compounding furnace pipe and thermal insulation layer |
JP5419231B2 (en) * | 2011-08-02 | 2014-02-19 | 黒崎播磨株式会社 | Indefinite refractory |
TW201325767A (en) * | 2011-12-22 | 2013-07-01 | Metal Ind Res & Dev Ct | Mold with complex cooling channel and manufacturing method thereof |
-
2014
- 2014-01-28 TW TW103103180A patent/TW201529203A/en not_active IP Right Cessation
- 2014-03-31 EP EP14162611.9A patent/EP2899484A1/en not_active Withdrawn
- 2014-04-25 CN CN201410168969.XA patent/CN104801689A/en active Pending
- 2014-06-06 JP JP2014117586A patent/JP2015139822A/en active Pending
- 2014-06-30 KR KR1020140081288A patent/KR20150089902A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1136778A1 (en) * | 1998-10-23 | 2001-09-26 | Nippon Crucible Co., Ltd. | Melting/retaining furnace for aluminum ingot |
EP1365201A1 (en) * | 2002-05-14 | 2003-11-26 | Howmet Research Corporation | Melting crucible and method |
TWI280166B (en) | 2002-12-26 | 2007-05-01 | Toshiba Machine Co Ltd | Liquid material feed apparatus of die casting machine, liquid material feed method, and ladle |
Also Published As
Publication number | Publication date |
---|---|
JP2015139822A (en) | 2015-08-03 |
CN104801689A (en) | 2015-07-29 |
KR20150089902A (en) | 2015-08-05 |
TWI504452B (en) | 2015-10-21 |
TW201529203A (en) | 2015-08-01 |
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