US20150273576A1 - Casting equipment - Google Patents
Casting equipment Download PDFInfo
- Publication number
- US20150273576A1 US20150273576A1 US14/670,455 US201514670455A US2015273576A1 US 20150273576 A1 US20150273576 A1 US 20150273576A1 US 201514670455 A US201514670455 A US 201514670455A US 2015273576 A1 US2015273576 A1 US 2015273576A1
- Authority
- US
- United States
- Prior art keywords
- pressure casting
- chamber
- furnace
- fluid
- tube
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D47/00—Casting plants
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
- C22B21/064—Obtaining aluminium refining using inert or reactive gases
-
- 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
- F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
- F27B3/045—Multiple chambers, e.g. one of which is used for charging
-
- 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
- F27B3/12—Working chambers or casings; Supports therefor
- F27B2003/125—Hearths
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0006—Electric heating elements or system
- F27D2099/0008—Resistor heating
- F27D2099/0011—The resistor heats a radiant tube or surface
- F27D2099/0013—The resistor heats a radiant tube or surface immersed in the charge
Definitions
- the present invention relates to a forming equipment for refining and casting aluminum alloy.
- low pressure casting was employed extensively to manufacture wheels. And also, with requirements for improved performance and light weight of automobiles as well as such unprecedented strict requirements for sophisticated inner qualities and mechanical properties, low pressure casting was increasingly employed to manufacture cylinder heads and cylinder blocks.
- the current low pressure casting is executed in a way that the aluminum fluid refined is poured into a holding furnace of low pressure casting machine through casting ladle, and then heated radiatively in the holding furnace by a heating rod in the upper part of the holding furnace so as to keep temperature.
- pressure is applied onto the surface of the aluminum fluid through dry compressed air of low pressure so that the aluminum fluid rises through a lifting tube inserted in the aluminum fluid and is pressed into a mould cavity connected above the holding furnace.
- the aluminum fluid is slowly filled into the cavity from its lower part and solidifies after the pressure being kept for a period of time. At last the cast can be taken out when it cools to below its solid phase temperature.
- the drawbacks of this method include: the aluminum fluid is heated by radiative heating of the heating rod in the upper part of the furnace to keep temperature, which heating is uneven, namely the temperature in the upper portion is higher while the temperature in the lower portion is lower; the aluminum fluid refined would be oxidized by absorbing air in the process of being poured into the holding furnace, weakening the refining effect; it is compressed air at room temperature that enters the holding furnace, which adds to oxidation of the aluminum fluid in the holding furnace; in addition, the high temperature air in the furnace is discharged directly into the atmosphere after depressurization, resulting in heat loss and thus energy waste.
- the object of the present invention is to provide an integrated equipment for aluminum alloy refining and low pressure casting to resolve the above-mentioned problems.
- the body frame of a low pressure casting machine is mounted with a mould, and the body frame of the low pressure casting machine is mounted with a holding furnace at its lower portion;
- the holding furnace is divided into two furnace chambers, that is, fluid refining chamber and pressure casting chamber, the two furnace chambers are connected at their lower portions through a passage with a gate valve and a filter;
- the two furnace chambers are each provided with immersing electric heaters at their lower portions, and the fluid refining chamber is provided at its bottom portion with permeable bricks at regular intervals, which bricks are connected with a compressed inert gas tank via an intake tube having an electric proportional valve B;
- the fluid refining chamber is provided at its middle-upper portion with a furnace gate;
- the two furnace chambers are connected at their upper portions through a connecting pipe with an electric valve;
- the pressure casting chamber is connected at its upper portion with the sprue of the mould through the lifting tube and a suction tube, and the lifting tube is provided at its lower portion with a
- aluminum fluid After being refined in the fluid refining chamber, aluminum fluid doesn't contact air so that it will not be reoxidized, enabling manufacture of casts with fine quality. Meanwhile, immersing electric heating is employed in the holding furnace of the present invention to improve the temperature uniformity of aluminum fluid and the heating efficiency. After completing the pressure casting, the inert gas at high temperature will not be discharged directly into the atmosphere but into a gas tank so that it can be reused after being purified, improving utilization rate of resource and energy.
- FIG. 1 is a front view of the equipment according to the present invention.
- the reference numbers represent the following components respectively: 1 —body frame of low pressure casting machine, 2 —mould, 3 —suction tube, 4 —holding furnace, 4 - 1 —fluid refining chamber, 4 - 2 —pressure casting chamber, 5 —pressure relief tube, 6 —electric proportional valve A, 7 —lifting tube, 8 —filtering screen, 9 —intake tube, 10 —electric proportional valve B, 11 —base of the holding furnace, 12 —immersing electric heaters, 13 —gate valve, 14 —filter screen, 15 —permeable bricks, 16 —furnace gate, 17 —connecting pipe, 18 —electric valve.
- the body frame 1 of a low pressure casting machine of the equipment (as shown in FIG. 1 ) according to the present invention is mounted with a mould 2 , and the body frame 1 of the low pressure casting machine is mounted with a holding furnace 4 at its lower portion.
- the holding furnace 4 is divided into two furnace chambers, that is, fluid refining chamber 4 - 1 and pressure casting chamber 4 - 2 .
- the two furnace chambers are connected at their lower portions through a passage with a gate valve 13 and a filter 14 .
- the two furnace chambers are each provided with three immersing electric heaters 12 at their lower portions.
- the fluid refining chamber 4 - 1 is provided at its bottom portion with three permeable bricks 15 at regular intervals, which bricks are connected with a compressed inert gas tank via an intake tube 9 having an electric proportional valve B 10 .
- the fluid refining chamber 4 - 1 is provided at its middle-upper portion with a furnace gate 16 .
- the two furnace chambers are connected at their upper portions through a connecting pipe 17 with an electric valve 18 .
- the pressure casting chamber 4 - 2 is connected at its upper portion with the sprue of the mould 2 through the lifting tube 7 and a suction tube 3 .
- the lifting tube 7 is provided at its lower portion with a filtering screen 8 .
- the pressure casting chamber 4 - 2 is provided at its upper portion with a pressure relief tube 5 having an electric proportional valve A 6 , which tube is connected with a gas tank.
- Aluminum fluid is injected into the fluid refining chamber 4 - 1 of the holding furnace 4 through the furnace gate 16 and then the furnace gate is closed tightly.
- the gate valve 13 and the electric proportional valve B 10 By opening the gate valve 13 and the electric proportional valve B 10 , the aluminum fluid in the fluid refining chamber 4 - 1 flows via the passage into the pressure casting chamber 4 - 2 under effect of the gravity and gas pressure.
- the gate valve 13 and the electric proportional valve B 10 are closed when the aluminum fluid in the pressure casting chamber 4 - 2 reaches the upper limit.
- All valves should be closed at beginning of the operation.
- the electric valve 18 and the electric proportional valve B 10 are opened at the beginning of casting with the latter being operated according to the pressure curve of the pressure casting chamber 4 - 2 set by IPC (Industrial Personal Computer).
- IPC Industry Personal Computer
- Inert gas passing the permeable bricks 15 forms small bubbles to refine the aluminum fluid in the fluid refining chamber 4 - 1 , and after finishing the refining process the gas enters the pressure casting chamber 4 - 2 through the connecting pipe 17 .
- the aluminum fluid in the pressure casting chamber 4 - 2 enters the cavity of the mould 2 along the lifting tube 7 and the suction tube 3 so as to be molded.
- the electric valve 18 and the electric proportional valve 10 are closed to hold the pressure.
- the electric proportional valve A 6 in the pressure relief tube 5 and the electric valve 18 are opened after the aluminum fluid in the mould 2 is solidified into a cast, and the electric proportional valve A 6 in the pressure relief tube 5 and the electric valve 18 are closed after the pressure in the pressure casting chamber 4 - 2 reaches a predetermined pressure value. Finally, the mould 2 is opened and the cast is taken out of it, completing a whole casting cycle.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to an integrated equipment for aluminum alloy refining and casting, in which a holding furnace is divided into two furnace chambers, that is, fluid refining chamber and pressure casting chamber. After being refined in the fluid refining chamber, aluminum fluid doesn't contact air so that it will not be reoxidized, enabling manufacture of casts with fine quality. Meanwhile, immersing electric heating is employed in the holding furnace of the present invention to improve the temperature uniformity of aluminum fluid and the heating efficiency. After completing the pressure casting, the inert gas at high temperature will not be discharged directly into the atmosphere but into a gas tank so that it can be reused after being purified, improving utilization rate of resource and energy.
Description
- Priority is claimed to Chinese Application No. 201410118421.4, filed Mar. 27, 2014, and the entire contents thereof are hereby incorporated by herein reference.
- The present invention relates to a forming equipment for refining and casting aluminum alloy.
- The embryonic form of low pressure casting can be traced back to the beginning of last century. The proposal of applying low pressure casting to manufacture aluminum alloy was firstly put forward in 1917 in France and in 1924 in Germany, but large-scale industrial production didn't follow thereafter. It was from 1945 after the World War II when aluminum alloy was manufactured with this method for commercial purposes. In 1958 an American automobile manufacturer employed plenty of aluminum alloy casts which are fabricated by means of low pressure casting to produce engine parts of compact cars. Low pressure casting was introduced into China in 1957 or so, but it was approximately from 1960 when the method was paid sincere attention marked by extensive study and importation of equipments. However, professionals in the field did not attach much importance to it, since this epoch-making method, which broke through the principles of common knowledge in the art and almost don't need any flash groove, presented technical difficulties completely different from the gravity metal casting method which had been established as a “technology”. Under this circumstance, the production of air cooling cylinder heads used in light cars in 1961 became an outset of practical using of low pressure casting in China. Thereafter, this technique developed rapidly. After overcoming multiple technical problems and thanks to such advantages as high material utilization rate, easy to automate molding etc, low pressure casting has gradually become a major casting method for light alloy casts, in particular for automobile parts. Low pressure casts have been accounting for about 50% of all aluminum alloy casts and are famous around the world for their enormous output and excellent quality. The products have been used for other parts of automobile. In particular after 1970 low pressure casting was employed extensively to manufacture wheels. And also, with requirements for improved performance and light weight of automobiles as well as such unprecedented strict requirements for sophisticated inner qualities and mechanical properties, low pressure casting was increasingly employed to manufacture cylinder heads and cylinder blocks. However, the current low pressure casting is executed in a way that the aluminum fluid refined is poured into a holding furnace of low pressure casting machine through casting ladle, and then heated radiatively in the holding furnace by a heating rod in the upper part of the holding furnace so as to keep temperature. In the hermetical holding furnace, pressure is applied onto the surface of the aluminum fluid through dry compressed air of low pressure so that the aluminum fluid rises through a lifting tube inserted in the aluminum fluid and is pressed into a mould cavity connected above the holding furnace. The aluminum fluid is slowly filled into the cavity from its lower part and solidifies after the pressure being kept for a period of time. At last the cast can be taken out when it cools to below its solid phase temperature. The drawbacks of this method include: the aluminum fluid is heated by radiative heating of the heating rod in the upper part of the furnace to keep temperature, which heating is uneven, namely the temperature in the upper portion is higher while the temperature in the lower portion is lower; the aluminum fluid refined would be oxidized by absorbing air in the process of being poured into the holding furnace, weakening the refining effect; it is compressed air at room temperature that enters the holding furnace, which adds to oxidation of the aluminum fluid in the holding furnace; in addition, the high temperature air in the furnace is discharged directly into the atmosphere after depressurization, resulting in heat loss and thus energy waste.
- The object of the present invention is to provide an integrated equipment for aluminum alloy refining and low pressure casting to resolve the above-mentioned problems.
- The technical solution for achieving the above object is as follows: the body frame of a low pressure casting machine is mounted with a mould, and the body frame of the low pressure casting machine is mounted with a holding furnace at its lower portion; the holding furnace is divided into two furnace chambers, that is, fluid refining chamber and pressure casting chamber, the two furnace chambers are connected at their lower portions through a passage with a gate valve and a filter; the two furnace chambers are each provided with immersing electric heaters at their lower portions, and the fluid refining chamber is provided at its bottom portion with permeable bricks at regular intervals, which bricks are connected with a compressed inert gas tank via an intake tube having an electric proportional valve B; the fluid refining chamber is provided at its middle-upper portion with a furnace gate; the two furnace chambers are connected at their upper portions through a connecting pipe with an electric valve; the pressure casting chamber is connected at its upper portion with the sprue of the mould through the lifting tube and a suction tube, and the lifting tube is provided at its lower portion with a filtering screen; the pressure casting chamber is provided at its upper portion with a pressure relief tube having an electric proportional valve A, which tube is connected with a gas tank.
- After being refined in the fluid refining chamber, aluminum fluid doesn't contact air so that it will not be reoxidized, enabling manufacture of casts with fine quality. Meanwhile, immersing electric heating is employed in the holding furnace of the present invention to improve the temperature uniformity of aluminum fluid and the heating efficiency. After completing the pressure casting, the inert gas at high temperature will not be discharged directly into the atmosphere but into a gas tank so that it can be reused after being purified, improving utilization rate of resource and energy.
-
FIG. 1 is a front view of the equipment according to the present invention. - In the drawing, the reference numbers represent the following components respectively: 1—body frame of low pressure casting machine, 2—mould, 3—suction tube, 4—holding furnace, 4-1—fluid refining chamber, 4-2—pressure casting chamber, 5—pressure relief tube, 6—electric proportional valve A, 7—lifting tube, 8—filtering screen, 9—intake tube, 10—electric proportional valve B, 11—base of the holding furnace, 12—immersing electric heaters, 13—gate valve, 14—filter screen, 15—permeable bricks, 16—furnace gate, 17—connecting pipe, 18—electric valve.
- The specific embodiment according to the present invention will be described in conjunction with the drawing.
- As shown in the drawing, the body frame 1 of a low pressure casting machine of the equipment (as shown in
FIG. 1 ) according to the present invention is mounted with a mould 2, and the body frame 1 of the low pressure casting machine is mounted with a holding furnace 4 at its lower portion. The holding furnace 4 is divided into two furnace chambers, that is, fluid refining chamber 4-1 and pressure casting chamber 4-2. The two furnace chambers are connected at their lower portions through a passage with agate valve 13 and afilter 14. The two furnace chambers are each provided with three immersingelectric heaters 12 at their lower portions. The fluid refining chamber 4-1 is provided at its bottom portion with threepermeable bricks 15 at regular intervals, which bricks are connected with a compressed inert gas tank via an intake tube 9 having an electricproportional valve B 10. The fluid refining chamber 4-1 is provided at its middle-upper portion with afurnace gate 16. The two furnace chambers are connected at their upper portions through a connectingpipe 17 with anelectric valve 18. The pressure casting chamber 4-2 is connected at its upper portion with the sprue of the mould 2 through the lifting tube 7 and a suction tube 3. The lifting tube 7 is provided at its lower portion with a filtering screen 8. The pressure casting chamber 4-2 is provided at its upper portion with a pressure relief tube 5 having an electric proportional valve A 6, which tube is connected with a gas tank. - Aluminum fluid is injected into the fluid refining chamber 4-1 of the holding furnace 4 through the
furnace gate 16 and then the furnace gate is closed tightly. By opening thegate valve 13 and the electricproportional valve B 10, the aluminum fluid in the fluid refining chamber 4-1 flows via the passage into the pressure casting chamber 4-2 under effect of the gravity and gas pressure. Thegate valve 13 and the electricproportional valve B 10 are closed when the aluminum fluid in the pressure casting chamber 4-2 reaches the upper limit. - All valves should be closed at beginning of the operation. The
electric valve 18 and the electricproportional valve B 10 are opened at the beginning of casting with the latter being operated according to the pressure curve of the pressure casting chamber 4-2 set by IPC (Industrial Personal Computer). Inert gas passing thepermeable bricks 15 forms small bubbles to refine the aluminum fluid in the fluid refining chamber 4-1, and after finishing the refining process the gas enters the pressure casting chamber 4-2 through the connectingpipe 17. Under gas pressure, the aluminum fluid in the pressure casting chamber 4-2 enters the cavity of the mould 2 along the lifting tube 7 and the suction tube 3 so as to be molded. After the pressure in the pressure casting chamber 4-2 reaches a set holding pressure, theelectric valve 18 and the electricproportional valve 10 are closed to hold the pressure. The electric proportional valve A 6 in the pressure relief tube 5 and theelectric valve 18 are opened after the aluminum fluid in the mould 2 is solidified into a cast, and the electric proportional valve A 6 in the pressure relief tube 5 and theelectric valve 18 are closed after the pressure in the pressure casting chamber 4-2 reaches a predetermined pressure value. Finally, the mould 2 is opened and the cast is taken out of it, completing a whole casting cycle.
Claims (1)
1. A casting equipment comprising a low pressure casting machine and a mould, characterized in that the body frame (1) of the low pressure casting machine is mounted with the mould (2), and the body frame (1) of the low pressure casting machine is mounted with a holding furnace (4) at its lower portion; the holding furnace (4) is divided into two furnace chambers, that is, fluid refining chamber (4-1) and pressure casting chamber (4-2), the two furnace chambers are connected at their lower portions through a passage with a gate valve (13) and a filter (14); the two furnace chambers are each provided with immersing electric heaters (12) at their lower portions, and the fluid refining chamber (4-1) is provided at its bottom portion with permeable bricks (15) at regular intervals, which bricks are connected with a compressed inert gas tank via an intake tube (9) having an electric proportional valve B (10); the fluid refining chamber (4-1) is provided at its middle-upper portion with a furnace gate (16); the two furnace chambers are connected at their upper portions through a connecting pipe (17) having an electric valve (18); the pressure casting chamber (4-2) is connected at its upper portion with the sprue of the mould (2) through the lifting tube (7) and a suction tube (3), and the lifting tube (7) is provided at its lower portion with a filtering screen (8); the pressure casting chamber (4-2) is provided at its upper portion with a pressure relief tube (5) having an electric proportional valve A (6), which tube is connected with a gas tank.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410118421.4 | 2014-03-27 | ||
CN201410118421.4A CN103862023A (en) | 2014-03-27 | 2014-03-27 | Casting equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150273576A1 true US20150273576A1 (en) | 2015-10-01 |
Family
ID=50901375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/670,455 Abandoned US20150273576A1 (en) | 2014-03-27 | 2015-03-27 | Casting equipment |
Country Status (2)
Country | Link |
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US (1) | US20150273576A1 (en) |
CN (1) | CN103862023A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104625018A (en) * | 2015-03-09 | 2015-05-20 | 江苏天宏机械工业有限公司 | Three-chamber electrical heating and heat preserving furnace for continuously-pressurized molten aluminum |
CN106392038A (en) * | 2016-10-31 | 2017-02-15 | 攀枝花市蓝天锻造有限公司 | Casting furnace |
CN107470586A (en) * | 2017-08-31 | 2017-12-15 | 江苏天宏机械工业有限公司 | A kind of Room holding furnace of low pressure casting three with aluminium liquid suspension function |
CN107952945A (en) * | 2017-12-26 | 2018-04-24 | 江苏凯特汽车部件有限公司 | Semi solid aluminum wheel hub rheology twin furnace apparatus for continuous formation |
CN110918940B (en) * | 2019-12-18 | 2021-12-31 | 内蒙古工业大学 | Casting device and casting method for large-scale non-ferrous metal thin-wall structural part |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3675911A (en) * | 1968-11-11 | 1972-07-11 | Wiener Schwachstromwerke Gmbh | Arrangement for discharging predetermined amounts of molten metal from a vessel |
US4298187A (en) * | 1978-04-26 | 1981-11-03 | Swiss Aluminium Ltd. | Apparatus for inline degassing and filtration of molten metal |
US5913358A (en) * | 1993-11-11 | 1999-06-22 | Hi-Tec Metals Ltd. | Casting apparatus and method |
US5948352A (en) * | 1996-12-05 | 1999-09-07 | General Motors Corporation | Two-chamber furnace for countergravity casting |
US20020179276A1 (en) * | 2001-05-29 | 2002-12-05 | Meyer Thomas N. | Casting apparatus including a gas driven molten metal injector and method |
US20030230835A1 (en) * | 2002-06-13 | 2003-12-18 | Alotech Ltd. Llc | Dispensing apparatus and method |
US20040050525A1 (en) * | 2002-09-13 | 2004-03-18 | Kennedy Gordon F. | Molten metal pressure pour furnace and metering vavle |
US20080303195A1 (en) * | 2004-11-25 | 2008-12-11 | Tounetsu Co., Ltd. | Molten Metal Holding Furnace |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2471451Y (en) * | 2001-03-20 | 2002-01-16 | 河北工业大学 | Pressurized casting apparatus with vacuum and protective gas protection alternatively |
JP4615300B2 (en) * | 2004-11-25 | 2011-01-19 | 株式会社トウネツ | Holding furnace for low pressure casting |
CN102463336A (en) * | 2011-12-20 | 2012-05-23 | 江苏凯特汽车部件有限公司 | Novel pressure device for finely turned bright aluminum alloy wheel |
CN103495718A (en) * | 2013-09-17 | 2014-01-08 | 浙江万丰科技开发有限公司 | Continuous low pressure casting production method and device |
CN203737996U (en) * | 2014-03-27 | 2014-07-30 | 中信戴卡股份有限公司 | Casting device |
-
2014
- 2014-03-27 CN CN201410118421.4A patent/CN103862023A/en active Pending
-
2015
- 2015-03-27 US US14/670,455 patent/US20150273576A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3675911A (en) * | 1968-11-11 | 1972-07-11 | Wiener Schwachstromwerke Gmbh | Arrangement for discharging predetermined amounts of molten metal from a vessel |
US4298187A (en) * | 1978-04-26 | 1981-11-03 | Swiss Aluminium Ltd. | Apparatus for inline degassing and filtration of molten metal |
US5913358A (en) * | 1993-11-11 | 1999-06-22 | Hi-Tec Metals Ltd. | Casting apparatus and method |
US5948352A (en) * | 1996-12-05 | 1999-09-07 | General Motors Corporation | Two-chamber furnace for countergravity casting |
US20020179276A1 (en) * | 2001-05-29 | 2002-12-05 | Meyer Thomas N. | Casting apparatus including a gas driven molten metal injector and method |
US20030230835A1 (en) * | 2002-06-13 | 2003-12-18 | Alotech Ltd. Llc | Dispensing apparatus and method |
US20040050525A1 (en) * | 2002-09-13 | 2004-03-18 | Kennedy Gordon F. | Molten metal pressure pour furnace and metering vavle |
US20080303195A1 (en) * | 2004-11-25 | 2008-12-11 | Tounetsu Co., Ltd. | Molten Metal Holding Furnace |
Also Published As
Publication number | Publication date |
---|---|
CN103862023A (en) | 2014-06-18 |
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