CN103418744A - Method and device for pressure casting - Google Patents
Method and device for pressure casting Download PDFInfo
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- CN103418744A CN103418744A CN2012101635154A CN201210163515A CN103418744A CN 103418744 A CN103418744 A CN 103418744A CN 2012101635154 A CN2012101635154 A CN 2012101635154A CN 201210163515 A CN201210163515 A CN 201210163515A CN 103418744 A CN103418744 A CN 103418744A
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Abstract
There is such a problem that during casting, mold origin gas generated in reactions between plaster material and molten material is left in the molten material and is not discharged into the outside. A pressure casting device with a control device solves the problem by means of the following control steps: when melted material is injected into a mold, an increasing pressure is applied to a melting chamber; when the pressure detected by a pressure sensor reaches a specified value, the pressure inside the melting chamber is kept constant for a specified period of time; and after the specified period of time, the pressure inside the melting chamber is further increased from the constant value.
Description
Technical field
The present invention relates to the compression casting device and the pressure method that use in the production process of the raw material of lost-wax casting.
Background technology
As the accurate method of manufacturing the casting piece of the complicated shapes such as metal jewelry integratedly, known lost wax process.Lost wax process mainly roughly is divided into: the wax-pattern production process, the ii that i) use rubber pattern) use mold production process, the iii of wax-pattern) use casting process, the iv of the final casting piece of mold) each stage that completes manufacturing procedure of casting piece.In " casting process of the final casting piece of the mold be used to complete ", use vacuum-pressured casting device.At this, vacuum means once to have carries out vacuum exhaust to inner pressure, the compression casting device of the vacuum process while being replaced with the rare gas such as argon, and pressurization means to have the operation that molten raw material is pressurizeed, in this manual, they are generically and collectively referred to as to the compression casting device.At this, with reference to Fig. 1 and the Fig. 2 about compression casting device of the present invention, the summary that has representational compression casting device now is described.
Compression casting device 1 has the die cavity 30 of the mold for flowing into after the melting chamber 20 of melt raw material and mounting melting.In melting chamber 20, dispose and add the melting crucible 4 that becomes the raw material after particle and make its melting.Melting the interior molten raw material in chamber 20 to the inside injection that is configured in the mold 2 in die cavity 30.But with in lost-wax casting, the fluid passage of mold 2 inside is thin and be complicated at treasured decorations, and melting the viscosity of raw material very high, therefore, raw material is difficult to flow into the depths of fluid passage.Therefore, need to make melting raw material in the mode of fused raw material, be easy to flow into to the fluid passage of mold 2 inside, need to be pressurizeed to melting in chamber 20.
Summary of the invention
With in lost-wax casting, mold 2 is for example formed by the gypsum class material that has mixed cristobalite, silica, gypsum at treasured decorations.When fused raw material flows into mold 2, the gypsum class material and the fused raw material that form mold react, generation gas (below, be called " mold origin gas ").Mold origin gas is oxidizing gas, therefore, has the problem that can damage raw material when remaining in raw material inside.
But, for make melting raw material in the mode of fused raw material, be easy to flow into and to melting under the state pressurizeed in chamber 20 to the fluid passage of mold 2 inside, this mold origin gas residue is in fused raw material and do not discharge to outside.Therefore, occur when raw material cooling and while solidifying under this state, the inside that has been created in product occur hole defective work problem and become the reason of corrosion.On the other hand, when not pressurizeed, the fused raw material that viscosity is high can not arrive fully the fluid passage of mold 2 inside and be easy to produce defective work.
Therefore, the present invention solves with following compression casting device, and above-mentioned compression casting device possesses: die cavity, and it has the mold that comprises gypsum material in inside; Melt chamber, it has in inside for melting the melting crucible of raw material, have in bottom that mode can link hermetically with this die cavity configures for from the connected entrance of raw material from this meltings crucible to this mold importing melting; Presser unit, it is connected with this melting chamber, imports rare gas to inside; Pressure sensor, it detects the pressure in this melting chamber; And control device, it controls this presser unit, and it is pressurizeed to importing the liquid level of rare gas to the raw material that injects this mold in this melting chamber by the detected pressures according to this pressure sensor.
In addition, the present invention solves problem with following compression casting device, and above-mentioned compression casting device possesses: die cavity, and it has the mold that comprises gypsum material in inside; Melt chamber, it has in inside for melting the melting crucible of raw material, in the mode that can link hermetically with this die cavity, configures, and in bottom, has for import the connected entrance of the raw material of melting from this melting crucible to this mold; Exhaust unit, it is connected with this die cavity, can make internal gas exhaust separately; And control device, pressure sensor and this exhaust unit that it control to detect the pressure in this die cavity, make above-mentioned this exhaust unit by the detected pressures according to this pressure sensor, gas exhaust in this die cavity be pressurizeed to the liquid level of the raw material that injects this mold.
In addition, the present invention solves problem with following pressure method, above-mentioned pressure method is characterised in that, it is the pressure method liquid level in mold pressurizeed by the compression casting device, possess following operation: when injecting the raw material of melting in this mold, by this presser unit to inside importing rare gas and to being pressurizeed in this melting chamber; When the detected pressures of pressure sensor reaches the pressure of regulation, with official hour, will in this melting chamber, remain constant pressure; And, after the stipulated time, carry out the control that the pressure constant by this is further pressurizeed to this melting chamber.
In addition, the present invention solves problem with following pressure method, and above-mentioned pressure method is characterised in that, is the pressure method liquid level in mold pressurizeed with the compression casting device, possesses following operation: when in this mold, injecting the raw material of melting, make the die cavity exhaust; When the detected pressures of pressure sensor reaches the pressure of regulation, with official hour, this exhaust unit is stopped and will remain constant pressure in this die cavity; And again driving this exhaust unit and the pressure constant from this further reduces pressure to the pressure in this die cavity after the stipulated time.
According to the present invention, the raw material and the gypsum class material mold that inject mold react, and can discharge the mold origin gas produced in raw material inside, can reduce the generation in the hole of casting piece inside.
The accompanying drawing explanation
Fig. 1 is the outside drawing of compression casting device.
Fig. 2 is the figure that the inside of the melting chamber 20 of compression casting device of the present invention and die cavity 30 is shown.
Fig. 3 illustrates the figure that the pipe arrangement of the compression system of compression casting device and depressurized system forms.
Fig. 4 is the figure that the pressuring curve of the melting chamber 20 of compression casting device and die cavity 30 is shown.
Description of reference numerals
1 compression casting machine
2 molds
4 melt crucible
5 protection crucibles
20 melt chamber
30 die cavitys
41 force (forcing) pumps
51 exhaust pumps
52 control device
The specific embodiment
Below, referring to figs. 1 through Fig. 4, compression casting device 1 of the present invention is described.Fig. 1 is the outside drawing of compression casting device 1.Fig. 2 is the synoptic diagram that the internal structure of compression casting device 1 of the present invention is shown.Fig. 3 is compression system (air supply system) that compression casting device 1 of the present invention is shown and the figure of depressurized system (gas extraction system).Fig. 4 illustrates the pressuring curve of compression casting device 1 of the present invention.
Compression casting device 1 has the die cavity 30 of the mold 2 for flowing into after the melting chamber 20 of melt raw material and mounting melting.As raw material, be gold, silver, brass etc.Mold 2 is generally formed by gypsum class material.Specifically, be the material that contains 30% to 40% cristobalite, 30% to 40% silica, 20% to 30% gypsum.Melting these raw materials be easy to react and produce gas with gypsum class material.Dispose the melting crucible 4 that adds the raw material after becoming particle and make its melting and the protection crucible 5 of protecting this melting crucible 4 in melting chamber 20.Melt the top that chamber 20 is positioned at die cavity 30, be fixed to compression casting device 1.Above melting chamber 20, dispose the lid 22 that melts chamber 20.Below die cavity 30, dispose closed cylinder 40.Die cavity 30 can the assembling of oscilaltion ground along support bar 23a and support bar 23b in the vertical direction.And die cavity 30 can rotate around folk prescription support bar 23b, can be configured in the just lower position that melts chamber 20, also can be configured in from melting chamber 20 just the position of stretching out to horizontal direction.
In the inside that melts chamber 20, dispose the protection crucible 5 of the drum of hollow.On protection crucible 5, have than the large opening 5a of profile that melts crucible 4, dispose opening 5b in the bottom of protection crucible 5.Internal configurations at protection crucible 5 has step, can support and melt crucible 4.In the inside that melts crucible 4, the space that disposes the hollow for keeping raw material, its profile is to insert the cylindrical shape in the space of the inside of protecting crucible 5.Melt crucible 4 and there is the opening 4a of wide-mouth at upside, there is the nozzle-like discharge opening 4b dwindled in the end of bottom side.Melt crucible 4 and insert from the opening 5a of protection crucible 5 inside of protecting crucible 5.The melting crucible 4 inserted from the opening 5a that protects crucible 5 loads and is fixed on the step surface of the inside of protecting crucible 5.
Downside in the inside of die cavity 30 disposes mold lift cylinder 31.In the inside of mold lift cylinder 31, piston 32 is can be in the vertical direction lifting in the internal configurations of die cavity 30.In the face of the upside of piston 32, dispose the mold pedestal 33 with smooth face.Mounting mold 2 on mold pedestal 33.Along with the lifting of piston 32, mold 2 also with 33 1 liftings of mold pedestal.
Downside at die cavity 30 disposes closed cylinder 40.Closed cylinder 40 has closed cylinder lifting piston 41 that can lifting.When closed cylinder lifting piston 41 rises, raise die cavity 30.Then the die cavity 30 be elevated contacts with melting 20De bottom, chamber, clogs the opening 30a of die cavity 30 with tightening flap 30b.On the other hand, when the cylinder baffle decline that makes closed cylinder 40, when support bar 23a and support bar 23b are descended downwards, the top of support bar 23a and support bar 23b descends in the mode of pressing cover 22.The lid 22 descended clogs the opening 20a that melts chamber 20.Can be cover 22 and opening 20a between by tightening flap 20c, melt between chamber 20 and die cavity 30 airtight respectively by tightening flap 30b.
Raw material is placed on and melts in crucible 4 under melting the state that chamber 20 and die cavity 30 be opened.And, clog the opening 20a that melts chamber 20 with lid 22, close die cavity 30.Outside at protection crucible 5; be equipped with the induction coil 21 that protection crucible 5 is heated in the mode of surrounding protection crucible 5; melt crucible 4 and melt the magnetic force that the prepared using in crucible 4 produces induction coil 21 energisings, according to the high-frequency induction heating principle by directly heating, melting.
In melting chamber 20, in substantial middle section, be equipped with the countercheck rod 24 that in the vertical direction extends.Countercheck rod 24 can, by means of the lifting on the above-below direction of vertical direction of block piece driving mechanism, have the function as the bolt of the discharge opening 4b that melts crucible 4.The top of countercheck rod 24 drop to vertical direction below state under, sealing melts the nozzle-like discharge opening 4b of crucible 4, on the other hand, under the state above rising to, opens the nozzle-like discharge opening 4b that melts crucible 4.When countercheck rod 24 rises and discharge opening 4b while being opened, from discharge opening 4b, the opening 30a by die cavity 30 flows into mold 2 to the raw material of melting.
Compression casting device 1 has the exhaust pump 51 as exhaust unit.Exhaust pump 51 can use various vavuum pumps typically.Exhaust pump 51 fluidly is connected respectively with the exhaust port 56 that is configured in die cavity 30 with melting chamber 20.Be connected with valve 54 between melting chamber 20 and exhaust pump 51, between die cavity 30 and exhaust pump 51, be connected with valve 55.Thus, can be to the inside exhaust individually respectively that melts chamber 20 and die cavity 30.In die cavity 30, be equipped with the pressure sensor 53 that can measure internal pressure.Pressure sensor 53 for example can be assembled to exhaust port 56, as long as still can detect the internal pressure of die cavity 30, can be assembled to any position.
Compression casting device 1 has control device 52.Control device 52 is electrically connected to pump 41 and vavuum pump 51 as presser unit respectively.Control device 52, can be pressurizeed to the inside that melts chamber 20 to melting the interior importing rare gas in chamber 20 thus according to the detected pressures of pressure sensor 43, can control the pressure that the liquid level 7a of the raw material 7 to injecting mold 2 is pressurizeed.Control device 52 discharges the gas in die cavity 30 according to the detected pressures of pressure sensor 53, and the mode that can be pressurizeed with the liquid level 7a of the raw material 7 to injecting mold 2 is thus controlled exhaust pump 51.
Then, illustrate and use compression casting device 1 of the present invention to be cast and to the pressure method of the raw material that injects mold inside.As previously mentioned, at first, melting under the state that chamber 20 and die cavity 30 be opened the raw material before melting that crucible 4 is interior melting is set.And, clog the opening 20a that melts chamber 20 with lid 22, close die cavity 30, closed cover 22 and opening 20a, melting chamber 20 and die cavity 30.And, open valve 54 and valve 55, drive exhaust pump 51, vacuum exhaust is carried out in the inside that melts chamber 20 and die cavity 30.Afterwards, the inside to the melting chamber 20 by vacuum exhaust and die cavity 30 imports rare gas.The timing imported and the timing of melting can freely be set according to casting process.
Then, utilize by the magnetic force that 21 energisings produce to induction coil, according to the heating of high-frequency induction heating principle melting, melt the raw material in crucible 4.In addition, the melting of raw material regularly can freely be set according to casting process.After complete melting, make countercheck rod 24 increase, when countercheck rod 24 rises and open discharge opening 4b, make the raw material 7 of melting pass through the opening 30a inflow mold 2 of die cavity 30 from discharge opening 4b.Liquid level 7a to the raw material 7 that flows into is pressurizeed.
There are 2 kinds of methods that the liquid level 7a of the raw material 7 of inflow is pressurizeed.A kind of is to make to melt the method for the internal pressure in chamber 20 with respect to the pressure rise of die cavity 30, and another kind is to make the method for the internal pressure of die cavity 30 with respect to the pressure minimizing that melts chamber 20.Compression casting device 1 can have both this 2 kinds of functions, in addition, also can only have either party's function.As long as can the liquid level 7a of the raw material 7 that flows into because of pressure differential be pressurizeed, possessed the function as compression casting device 1.
At first, last method is described, that is, the method for the pressure of the inside that makes to melt chamber 20 with respect to the pressure rise of die cavity 30 is described.Utilize force (forcing) pump 41 that rare gas is imported to the inside that melts chamber 20 and to the inside that melts chamber 20 pressurizeed (the 1st pressurization operation of Fig. 4).The pressure decreased of die cavity 30, therefore, melt the internal pressure in chamber 20 and the pressure differential of die cavity 30 and uprise, and the liquid level 7a of the raw material 7 of inflow mold 2 is pressurized.Now, at least utilize pressure sensor 43 to detect the pressure melted in chamber 20.When the pressure in pressure sensor 43 detects melting chamber 20 becomes the pressure of regulation, control device 52 stops being supplied with rare gas and stopping pressurization (pressure of Fig. 4 keeps operation) with official hour to melting chamber 20 by force (forcing) pump 41.Within this period, the mode that control device 52 maintains this constant pressure with time is in accordance with regulations controlled force (forcing) pump 51.After the stipulated time, control device 52 is restarted the supply of rare gas again, from this pressure start to be pressurizeed (the 2nd pressurization operation of Fig. 4).
Then, a method after illustrating, illustrate the pressure that makes die cavity 30 with respect to the method for the internal pressure minimizing that melts chamber 20 that is.Utilize force (forcing) pump 41 that rare gas is imported to the inside that melts chamber 20 and will melt the internal pressurization in chamber 20 and remain (for example, atmospheric pressure degree) to a certain degree.In a rear method, utilize force (forcing) pump 41 can not make pressure change to higher than this.At this, that is, utilize exhaust pump 51 that the internal gas of die cavity 30 is discharged, the internal pressure of die cavity 30 reduces (the 1st pressurization operation of Fig. 4) at leisure.Melt the internal pressure in chamber 20 and the pressure differential of die cavity 30 and uprise, the liquid level 7a of the raw material 7 of inflow mold is pressurized.Now, the pressure that at least utilizes pressure sensor 53 to detect in die cavity 30.When the pressure in pressure sensor 53 detects die cavity 30 becomes the pressure of regulation, control device 52 stops utilizing the exhaust of 51 pairs of die cavitys 30 of exhaust pump and stops pressurization (pressure of Fig. 4 keeps operation) with official hour.Within this period, the mode that control device 52 maintains this constant pressure with time is in accordance with regulations controlled exhaust pump 51.Through after the stipulated time, control device 52 is restarted the exhaust of rare gas again, from this pressure, starts decompression (the 2nd pressurization operation of Fig. 4).
In front with any method of back in, the mold 2 that " pressure of regulation " and " official hour " all are set as being formed by gypsum class material reacts with raw material 7 and can discharge fully from the liquid level of mold 2 at the inner mold origin gas produced of raw material.Particularly the pressure of regulation is set to than forcing down dividing of mold origin gas.When moulding pressure surpasses the dividing potential drop of mold origin gas, even remain constant pressure with official hour, the effect that mold origin gas is discharged from raw material also can disappear.By such setting, can prevent residual mold origin gas, and can be suitably the liquid level of raw material be pressurizeed.In addition, preferred pressing speed of again restarting the 2nd pressurization operation of rare gas supply is the speed identical with the pressing speed of the 1st pressurization operation.
Claims (6)
1. a compression casting device, is characterized in that,
Possess:
Die cavity, it has the mold that comprises gypsum material in inside;
Melt chamber, it has in inside for melting the melting crucible of raw material, have in bottom that mode can link hermetically with this die cavity configures for from the connected entrance of raw material from this meltings crucible to this mold importing melting;
Presser unit, it is connected with this melting chamber, imports rare gas to inside;
Pressure sensor, it detects the pressure in this melting chamber; And
Control device, it controls this presser unit, and it is pressurizeed to importing the liquid level of rare gas to the raw material that injects this mold in this melting chamber by the detected pressures according to this pressure sensor,
This control device is carried out following control: when inject above-mentioned melting in this mold raw material the time, pressurizeed in this melting chamber, when the detected pressures of this pressure sensor reaches the pressure of regulation, to in this melting chamber, remain constant pressure with official hour, after this stipulated time, the pressure constant by this to this melting chamber is further pressurizeed.
2. a compression casting device, is characterized in that,
Possess:
Die cavity, it has the mold that comprises gypsum material in inside;
Melt chamber, it has in inside for melting the melting crucible of raw material, have in bottom that mode can link hermetically with this die cavity configures for from the connected entrance of raw material from this meltings crucible to this mold importing melting;
Exhaust unit, it is connected with this die cavity, can make the internal gas in die cavity and melting chamber discharge;
Pressure sensor, it detects the pressure in this die cavity; And
Control device, it controls this exhaust unit, and its liquid level that makes gas in this die cavity eject the raw material to injecting this mold by the detected pressures according to this pressure sensor is pressurizeed,
This control device is carried out following control: when inject above-mentioned melting in this mold raw material the time, this die cavity is carried out to exhaust, when the detected pressures of this pressure sensor reaches the pressure of regulation, make this exhaust unit stop official hour and will remain constant pressure in this die cavity, after this stipulated time, again drive this exhaust unit and the pressure constant by this is further reduced pressure to the pressure in this die cavity.
3. compression casting device according to claim 1 and 2, is characterized in that,
The mold origin gas that the pressure of this regulation and official hour are set as this raw material and this mold reacts and produce in this raw material inside can be discharged from this liquid level of this mold, and dividing of this mold origin gas of the pressure ratio of this regulation forced down.
4. a pressure method, is characterized in that, utilizes the compression casting device to be pressurizeed to the liquid level in mold,
This pressurization casting mold apparatus possesses:
Die cavity, it has the mold that comprises gypsum material in inside;
Melt chamber, it has in inside for melting the melting crucible of raw material, have in bottom that mode can link hermetically with this die cavity configures for from the connected entrance of raw material from this meltings crucible to this mold importing melting;
Presser unit, it is connected with this melting chamber, imports rare gas to inside; And
Pressure sensor, it detects the pressure in this melting chamber,
This pressure method possesses following operation:
When inject above-mentioned melting in this mold raw material the time, utilize this presser unit to import rare gas to inside and to being pressurizeed in this melting chamber;
When the detected pressures of this pressure sensor reaches the pressure of regulation, with official hour, will in this melting chamber, remain constant pressure; And
After this stipulated time, carry out the control that the pressure constant by this is further pressurizeed to this melting chamber.
5. a pressure method, is characterized in that, utilizes the compression casting device to be pressurizeed to the liquid level in mold,
This compression casting device possesses:
Die cavity, it has the mold that comprises gypsum material in inside;
Melt chamber, it has in inside for melting the melting crucible of raw material, have in bottom that mode can link hermetically with this die cavity configures for from the connected entrance of raw material from this meltings crucible to this mold importing melting;
Exhaust unit, it is connected with this die cavity, can make the internal gas in die cavity and melting chamber discharge; And
Pressure sensor, it detects the pressure in this die cavity,
This pressure method possesses following operation:
When inject above-mentioned melting in this mold raw material the time, this die cavity is carried out to exhaust;
When the detected pressures of this pressure sensor reaches the pressure of regulation, make this exhaust unit stop official hour and will remain constant pressure in this die cavity; And
After this stipulated time, again drive this exhaust unit and the pressure constant by this is further reduced pressure to the pressure in this die cavity.
6. according to the described pressure method of claim 4 or 5, it is characterized in that,
The mold origin gas that the pressure of this regulation and official hour are set as this raw material and this mold reacts and produce in this raw material inside can be discharged from this liquid level of this mold, and dividing of this mold origin gas of the pressure ratio of this regulation forced down.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510612681.1A CN105170952A (en) | 2012-05-24 | 2012-05-24 | Pressure casting method and device |
| CN201210163515.4A CN103418744B (en) | 2012-05-24 | 2012-05-24 | Method and device for pressure casting |
| HK16100445.3A HK1212652A1 (en) | 2012-05-24 | 2016-01-15 | Method and device for pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163515.4A CN103418744B (en) | 2012-05-24 | 2012-05-24 | Method and device for pressure casting |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510612681.1A Division CN105170952A (en) | 2012-05-24 | 2012-05-24 | Pressure casting method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103418744A true CN103418744A (en) | 2013-12-04 |
| CN103418744B CN103418744B (en) | 2017-04-12 |
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|---|---|---|---|
| CN201210163515.4A Expired - Fee Related CN103418744B (en) | 2012-05-24 | 2012-05-24 | Method and device for pressure casting |
| CN201510612681.1A Pending CN105170952A (en) | 2012-05-24 | 2012-05-24 | Pressure casting method and device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510612681.1A Pending CN105170952A (en) | 2012-05-24 | 2012-05-24 | Pressure casting method and device |
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| Country | Link |
|---|---|
| CN (2) | CN103418744B (en) |
| HK (1) | HK1212652A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057060A (en) * | 2014-06-11 | 2014-09-24 | 烟台路通精密铝业有限公司 | In-casting-die metal liquid level position perception control system |
| CN105170952A (en) * | 2012-05-24 | 2015-12-23 | 安井贸易株式会社 | Pressure casting method and device |
| CN110814289A (en) * | 2019-12-02 | 2020-02-21 | 中北大学 | Vacuum pouring, pressurizing, solidifying and casting method and device for gypsum mold |
| CN111570751A (en) * | 2020-06-10 | 2020-08-25 | 宝应县鑫龙铸造有限公司 | Automatic vacuum pressure casting machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110522137A (en) * | 2018-05-26 | 2019-12-03 | 深圳市金久缘珠宝有限公司 | A method of processing jewellery |
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| CN105170952A (en) * | 2012-05-24 | 2015-12-23 | 安井贸易株式会社 | Pressure casting method and device |
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| WO2008050798A1 (en) * | 2006-10-25 | 2008-05-02 | Kabushiki Kaisha Shofu | Infrared lamp heating type casting apparatus and method of casting |
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2012
- 2012-05-24 CN CN201210163515.4A patent/CN103418744B/en not_active Expired - Fee Related
- 2012-05-24 CN CN201510612681.1A patent/CN105170952A/en active Pending
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2016
- 2016-01-15 HK HK16100445.3A patent/HK1212652A1/en unknown
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| JPS56126063A (en) * | 1980-03-05 | 1981-10-02 | Sansha Electric Mfg Co Ltd | Vacuum pressure casting method |
| JP2001314956A (en) * | 2000-04-28 | 2001-11-13 | Shiyoufuu:Kk | Transferable divided crucible type casting apparatus |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170952A (en) * | 2012-05-24 | 2015-12-23 | 安井贸易株式会社 | Pressure casting method and device |
| CN104057060A (en) * | 2014-06-11 | 2014-09-24 | 烟台路通精密铝业有限公司 | In-casting-die metal liquid level position perception control system |
| CN104057060B (en) * | 2014-06-11 | 2016-02-10 | 烟台路通精密铝业有限公司 | A kind of casting mould inner metal liquid face location aware control system |
| CN110814289A (en) * | 2019-12-02 | 2020-02-21 | 中北大学 | Vacuum pouring, pressurizing, solidifying and casting method and device for gypsum mold |
| CN110814289B (en) * | 2019-12-02 | 2024-03-26 | 中北大学 | Gypsum type vacuum pouring, pressurizing and solidifying casting method and device |
| CN111570751A (en) * | 2020-06-10 | 2020-08-25 | 宝应县鑫龙铸造有限公司 | Automatic vacuum pressure casting machine |
| CN111570751B (en) * | 2020-06-10 | 2021-07-06 | 宝应县鑫龙铸造有限公司 | Automatic vacuum pressure casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1212652A1 (en) | 2016-06-17 |
| CN103418744B (en) | 2017-04-12 |
| CN105170952A (en) | 2015-12-23 |
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