CN114346213A - Low-pressure casting die and low-pressure casting process suitable for same - Google Patents
Low-pressure casting die and low-pressure casting process suitable for same Download PDFInfo
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- CN114346213A CN114346213A CN202210027735.8A CN202210027735A CN114346213A CN 114346213 A CN114346213 A CN 114346213A CN 202210027735 A CN202210027735 A CN 202210027735A CN 114346213 A CN114346213 A CN 114346213A
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Abstract
The invention relates to the technical field of low-pressure casting, and provides a low-pressure casting die and a low-pressure casting process suitable for the die, wherein the low-pressure casting die comprises an upper die and a lower die, the upper die and the lower die are oppositely arranged to form a casting cavity, a pouring channel is arranged on the lower die, an exhaust hole is arranged on the upper die, the casting cavity is provided with a first pouring wall and a second pouring wall, the low-pressure casting die also comprises an upper forming module and a lower forming module, the upper forming module is arranged on the upper die, the lower forming module is arranged on the lower die, the upper forming module and the lower forming module are oppositely arranged, a gap is reserved between the upper forming module and the lower forming module, the first pouring wall, the second pouring wall and the upper forming module are used for forming a frame structure of a workpiece; the upper forming module and the lower forming module are multiple, and exhaust seams are reserved between the adjacent upper forming module and the adjacent lower forming module. Through above-mentioned technical scheme, solved among the prior art fender support piece can only make through the mode of punching press frame welding, it is inefficient, can't adopt the low pressure casting to carry out the problem of high quality casting to the work piece.
Description
Technical Field
The invention relates to the technical field of low-pressure casting, in particular to a low-pressure casting die and a low-pressure casting process suitable for the die.
Background
The prior art has the main function of preventing some mud from splashing on the vehicle body or the human body to cause the vehicle body or the human body to be unattractive, meanwhile, the sand stone with too high speed in the driving process is prevented from being easily thrown on the vehicle body to break off the outer paint supporting piece, for some large-sized locomotives, due to the large size of the fender, some supporting members are required for auxiliary support, whereas the prior art is basically made for fender supports by welding or the like, this form of welding requires multiple welds to the same support, is extremely inefficient, and the casting of these large, thin, irregularly shaped products in the prior art presents a number of problems, often damage the part body when the drawing of patterns to and the unable discharge of bubble on the in-process product of preparation, lead to part surface appearance unqualified, influence the intensity of product simultaneously.
Disclosure of Invention
The invention provides a low-pressure casting die and a low-pressure casting process suitable for the die, and solves the problems that a fender support in the related art can only be manufactured in a stamping frame welding mode, the efficiency is low, and high-quality casting of a workpiece cannot be performed by low-pressure casting.
The technical scheme of the invention is as follows:
a low-pressure casting die comprises an upper die and a lower die, wherein the upper die and the lower die are oppositely arranged to form a casting cavity, a pouring channel is arranged on the lower die, an exhaust hole is arranged on the upper die,
the casting cavity is provided with a first casting wall and a second casting wall, and also comprises a first casting cavity and a second casting cavity,
the upper molding module is arranged on the upper die, the lower molding module is arranged on the lower die, the upper molding module and the lower molding module are both positioned between the first pouring wall and the second pouring wall, gaps are reserved between the upper molding module and the second pouring wall, the upper molding module and the lower molding module are arranged oppositely, gaps are reserved between the upper molding module and the lower molding module, the first pouring wall, the second pouring wall and the upper molding module are used for forming a frame structure of a workpiece, and the lower molding module is used for forming a frame structure of the workpiece;
the upper forming module and the lower forming module are multiple and are arranged in sequence, and the upper forming module is adjacent to the lower forming module, and an exhaust gap is reserved between the upper forming module and the lower forming module.
As a further technical scheme, the number of the pouring channels is two, the gates of the two pouring channels are located on the bottom surface of the lower die, and the gates of the two pouring channels are located on the same plane.
As a further technical scheme, a plurality of top block cavities are further arranged between the upper die and the lower die and are respectively arranged on one side of the first pouring wall far away from the second pouring wall or one side of the second pouring wall far away from the first pouring wall, the top block cavities are communicated with the pouring cavities and are used for forming top blocks,
the upper die is also provided with a screw hole which is vertically arranged, penetrates through the upper die and is communicated with the jacking block cavity,
also comprises the following steps of (1) preparing,
the ejection rods are arranged in the screw holes in a sliding mode and extend into the ejection block cavities.
As a further technical proposal, the top plate is arranged above the upper die in a sliding way, a plurality of ejection rods are all connected with the top plate,
a spring for providing a force of the top plate away from the upper die.
As a further technical scheme, the side die is arranged on the lower die in a sliding mode, slides along the horizontal direction, and extends into the casting cavity to form the side hole.
As a further technical scheme, the ventilation pipes (8) are multiple and are respectively arranged in the screw holes (102), and the ventilation pipes (8) are used for cooling the casting cavity (3).
As a further technical scheme, the heating holes are multiple, are respectively and uniformly arranged on the upper die and the lower die and are arranged along the horizontal direction, and the heating holes are used for heating through the heating rods.
As a further technical scheme, a plurality of riser cavities are further arranged between the upper die and the lower die and are respectively arranged on one side of the first casting wall far away from the second casting wall or one side of the second casting wall far away from the first casting wall, the riser cavities are communicated with the casting cavities, and the riser cavities are used for feeding workpieces.
As a further technical solution, there is provided, including,
step A, smelting and purifying the metal solution,
step B, refining the purified molten metal, adding rare earth alloy, controlling the content of rare earth components,
step C, standing and degassing the refined molten metal,
step D, casting the metal liquid with the gas removed into a mould for low-pressure casting,
step E, completing the casting for X-ray flaw detection,
step F, the qualified products are repaired and rubbed, heat treatment is carried out after the completion,
and G, performing mechanical detection on the workpiece subjected to heat treatment, and removing other auxiliary blanks after the detection is qualified.
As a further technical solution, said step D further comprises,
d1, preheating the mould in the casting cavity,
d2, after preheating, starting low-pressure casting, after a period of time, starting air cooling,
d3, after the casting is finished, the side die is removed,
d4, after the side die is demolded, separating the upper die and the lower die, demolding,
d5, when demoulding, the bolt between the top plate and the upper die needs to be taken down firstly, the top plate is pressed down, and the plurality of ejector rods are ejected synchronously to realize demoulding.
The working principle and the beneficial effects of the invention are as follows:
in the prior art, workpieces which are large in size, have height difference and are I-shaped in cross section are generally manufactured by means of stamping and then welding, but the mode of stamping and welding is low in efficiency and is not suitable for batch production, and workpieces are formed by means of casting. In order to form the profile of the workpiece and simultaneously realize timely exhaust in the casting process and avoid the occurrence of an air entrainment phenomenon, the first casting wall, the second casting wall, the forming upper module and the forming lower module are specially designed, wherein the first casting wall and the second casting wall are used for forming two side walls in the I-shaped workpiece, the forming upper module and the forming lower module are both positioned between the first casting wall and the second casting wall and can realize the formation of an I-shaped groove structure on the workpiece, the first casting wall, the second casting wall, the forming upper module and the forming lower module form the profile of the I-shaped part together, and simultaneously, because the structures of the forming upper module and the forming lower module are of a splicing structure, a part of air in a cavity of the workpiece can be exhausted from an exhaust seam of the splicing structure during casting, so that the air entrainment phenomenon is avoided; simultaneously because its structure is mosaic structure, so when module or shaping lower module have the damage in the shaping, can only change impaired work piece, reduced the change loss cost of mould. The exhaust holes on the upper die penetrate through the upper molding module and are communicated with the casting cavity, and the exhaust function of gas can be realized under the combined action of the exhaust holes and the exhaust seams.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the upper mold block and the lower mold block for molding according to the present invention;
FIG. 4 is a schematic structural view of an upper mold and a lower mold of the present invention;
in the figure: 1-upper die, 101-upper die block forming, 102-screw hole forming, 103-ejector rod forming, 104-top plate forming, 2-lower die forming, 201-lower die block forming, 3-casting cavity forming, 301-top block cavity forming, 302-first casting wall forming, 303-second casting wall forming, 4-pouring channel forming, 5-exhaust hole forming, 6-side die forming, 7-cooling pipe forming, 8-ventilation pipe forming, 9-heating hole forming, 10-relief mouth forming and 11-exhaust seam forming.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
Example 1
As shown in fig. 1 to 2, the present embodiment provides a low pressure casting mold, which includes an upper mold 1 and a lower mold 2, the upper mold 1 and the lower mold 2 are disposed opposite to each other to form a casting cavity 3, a runner 4 is disposed on the lower mold 2, an exhaust hole 5 is disposed on the upper mold 1,
the casting cavity 3 has a first casting wall 302, a second casting wall 303, and further comprises,
the upper molding module 101 and the lower molding module 201 are arranged, the upper molding module 101 is arranged on the upper mold 1, the lower molding module 201 is arranged on the lower mold 2, the upper molding module 101 and the lower molding module 201 are both positioned between the first pouring wall 302 and the second pouring wall 303, gaps are reserved between the upper molding module 101 and the second pouring wall 302 and between the upper molding module 101 and the second pouring wall 303, the upper molding module and the lower molding module are oppositely arranged, gaps are reserved between the upper molding module and the lower molding module, the first pouring wall 302, the second pouring wall 303 and the upper molding module 101 are arranged, and the lower molding module 201 is used for forming a frame structure of a workpiece;
the upper module 101 and the lower module 201 are arranged in sequence, and are adjacent to each other, an exhaust gap 11 is reserved between the upper module 101 and the lower module 201.
In the prior art, workpieces which are large in size, have height difference and are I-shaped in cross section are generally manufactured by means of stamping and then welding, but the mode of stamping and welding is low in efficiency and is not suitable for batch production, and workpieces are formed by means of casting. In this embodiment, in order to form the profile of the workpiece and simultaneously achieve timely exhaust in the casting process, so as to avoid the occurrence of the air entrainment phenomenon, the first casting wall 302, the second casting wall 303, the upper molding block 101, and the lower molding block 201 are specially designed, wherein the first casting wall 302 and the second casting wall 303 are used for forming two side walls of the i-shaped workpiece, the upper molding block 101 and the lower molding block 201 are both located between the first casting wall 302 and the second casting wall 303, so as to achieve the formation of an i-shaped groove structure on the workpiece, wherein the first casting wall 302, the second casting wall 303, the upper molding block 101, and the lower molding block 201 together form the profile of the i-shaped part, and simultaneously, because the structures of the upper molding block 101 and the lower molding block 201 are the splicing structure, a part of air in the cavity of the mold can be exhausted from the exhaust gap 11 of the splicing structure during casting, the air entrainment phenomenon is avoided; meanwhile, the structure of the die is a splicing structure, so when the upper die block 101 or the lower die block 201 is damaged, only the damaged workpiece can be replaced, and the replacement loss cost of the die is reduced. Wherein, the exhaust hole 5 on the upper die 1 penetrates through the upper molding die block 101 and is communicated with the casting cavity 3, and the exhaust hole 5 and the exhaust seam 11 can realize the exhaust function of gas under the combined action.
Further, the gates of the runners 4 are located on the bottom surface of the lower die 2, and the gates of the two runners 4 are located on the same plane.
In order to realize that two runners solidify simultaneously when the cooling in this embodiment, after preventing the molten metal pressure release, because another solidification of two runners does not have, the phenomenon that falls back can appear in the runner molten metal that does not solidify, influences workpiece quality, so specially with two runner settings in the coplanar, the molten metal just can guarantee that two runners that are in same horizontal plane solidify simultaneously when top-down solidifies in proper order. Simultaneously in order to realize that molten metal evenly is full of casting chamber 3 fast when the casting, specially with the intercommunication department in two runners 4 and casting chamber 3, be located near the work piece along vertical neutral plane, molten metal can advance into the lower part of die cavity when the casting, when the height of molten metal reaches neutral plane height, need pressure to push up molten metal to the upper portion of casting chamber 3, compare the form of casting at the bottom, under the same pressure condition, set up the position that the ramp is close to the neutral plane with the casting passageway, the height of molten metal casting is lower relatively, casting speed is faster, simultaneously also more even.
Further, a plurality of top block cavities 301 are further arranged between the upper die 1 and the lower die 2, the plurality of top block cavities 301 are respectively arranged on one side of the first pouring wall 302 far away from the second pouring wall 303 or one side of the second pouring wall 303 far away from the first pouring wall 302, the top block cavities 301 are communicated with the pouring cavity 3, the top block cavities 301 are used for forming top blocks,
the upper die 1 is also provided with a screw hole 102, the screw hole 102 is vertically arranged, penetrates through the upper die 1 and is communicated with the top block cavity 301,
also comprises the following steps of (1) preparing,
In the embodiment, for the demolding of the workpiece with large volume and height difference, the ejector block cavity 301, the screw hole 102 and the ejector rod 103 are specially arranged, the ejector block cavity 301 is used for forming the ejector block, the ejector block cavity 301 is communicated with the casting cavity 3 to enable the ejector block to be connected with the workpiece, so that the force applied to the workpiece in unit area when the product is ejected is much smaller than that applied to the workpiece in unit area, the ejector block cavities 301 are arranged on the two sides of the first casting wall 302 and the second casting wall 303 to realize that the two sides of the casting cavity 3 can be stressed, and the workpiece is stressed uniformly during demolding; the screw hole 102 is used for guiding the ejector rod 103, and simultaneously, the function of exhausting partial gas in the casting cavity 3 can be realized, wherein the ejector rod 103 is used for ejecting and demoulding a workpiece after the workpiece is cast, and the ejector rod 103 can be directly ejected on an ejector block during demoulding, so that the ejection area of the workpiece is increased during demoulding, the ejection force born on the unit area of the workpiece is reduced, the damage degree of the workpiece is greatly reduced by the mode, and the workpiece can be smoothly demoulded.
Furthermore, a top plate 104 is slidably arranged above the upper die 1, a plurality of the ejection rods 103 are connected with the top plate 104,
a spring for providing a force of the top plate 104 away from the upper die 1.
In order to realize that a plurality of ejector pins 103 can realize synchronous ejection in this embodiment, roof 104 has been set up specially, roof 104 is connected with a plurality of ejector pins 103, only need to remove roof 104 when the drawing of patterns can realize synchronous ejection of a plurality of ejector pins 103, realize the drawing of patterns of work piece, the spring has been set up specially simultaneously, the effect of spring can be realized when ejecting post is ejecting, the spring provides certain cushion effect, prevent that the impact force can cause the injury to the work piece, play the effect of protection work piece, simultaneously can also realize after the drawing of patterns completion roof 104 for last mould 1's quick reset.
Further, the side die 6 is arranged on the lower die 2 in a sliding mode, slides along the horizontal direction, and extends into the casting cavity 3 to form a side hole.
In order to realize the casting of the side holes of the workpiece, a side die 6 is specially arranged in the embodiment, the side die 6 is arranged on a lower die 2 and can slide along the horizontal direction, a cylindrical table is arranged on the side die, the cylindrical table is the key for forming the side holes of the workpiece during casting, and meanwhile, the side holes in the workpiece are vertical to the demolding direction of the workpiece in order to facilitate the demolding of the product.
Furthermore, the ventilation pipes (8) are arranged in the screw holes (102) respectively, and the ventilation pipes (8) are used for cooling the casting cavity (3).
In order to realize that the sequence of molten metal solidification is more uniform in this embodiment, ventilation pipe 8 has been designed specially, ventilation pipe 8 sets up at the mould hot spot position, and the hot spot is the position that the wall thickness is relatively thicker when casting, and these positions are because the wall thickness is thicker when cooling, so will be slower than other positions solidification, and this problem that has just led to the molten metal backward flow, through the continuous cooling wind that provides of ventilation pipe, realize mould hot spot department and other positions synchronous cooling of coplanar.
Further, the heating hole 9 is a plurality of, evenly sets up respectively go up mould 1 with on the lower mould 2, and set up along the horizontal direction, be used for through the heating rod do the heating hole 9 heats.
In the embodiment, in order to realize the protection of the mold on the premise of finishing casting, the mold is heated before casting, wherein the heating hole 9 and the heating rod are arranged, the heating rod is placed in the heating hole 9 before casting to heat the mold, before casting, the mold is cold, the contact surface of the mold and a high-temperature section bar can expand in size, and the core part does not expand when the temperature of the mold is low, so that the surface can be pulled apart to form cracks; meanwhile, in order to ensure that the molten metal has good fluidity during casting and prevent the hot molten metal from being solidified due to the fact that the hot molten metal touches a cold mold due to heat conduction during casting, so that the molten metal is ensured to have good fluidity and is cast to each part of the casting cavity 3; the protection of the die can be realized on the premise of finishing casting under the combined action of the parts.
Further, a plurality of cap cavities 10 are further arranged between the upper die 1 and the lower die 2, the cap cavities 10 are respectively arranged on one side of the first pouring wall 302 far away from the second pouring wall 303 or one side of the second pouring wall 303 far away from the first pouring wall 302, the cap cavities 10 are communicated with the pouring cavity 3, and the cap cavities 10 are used for feeding the workpiece.
In order to prevent the workpiece from generating a necking during cooling, the riser cavity 10 is specially designed in the embodiment, molten metal can enter the riser cavity 10 during casting, the workpiece can be subjected to necking due to cold shrinkage and various reasons during cooling, so that the quality of the workpiece is affected, and the molten metal in the riser cavity 10 can flow to the necking to form feeding of the molten metal. The die with the cap cavity 10 can effectively prevent the workpiece from necking when the workpiece is cooled.
Further, step A, smelting and purifying the metal solution,
step B, refining the purified molten metal, adding rare earth alloy, controlling the content of rare earth components,
step C, standing and degassing the refined molten metal,
step D, casting the metal liquid with the gas removed into a mould for low-pressure casting,
step E, completing the casting for X-ray flaw detection,
step F, the qualified products are repaired and rubbed, heat treatment is carried out after the completion,
and G, performing mechanical detection on the workpiece subjected to heat treatment, and removing other auxiliary blanks after the detection is qualified.
And further D1, preheating the mould in the casting cavity,
d2, after preheating, starting low-pressure casting, after a period of time, starting air cooling,
d3, after the casting is finished, the side die is removed,
d4, after the side die is demolded, separating the upper die and the lower die, demolding,
d5, when demoulding, the bolt between the top plate and the upper die needs to be taken down firstly, the top plate is pressed down, and the plurality of ejector rods are ejected synchronously to realize demoulding.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A low-pressure casting die comprises an upper die (1) and a lower die (2), wherein the upper die (1) and the lower die (2) are oppositely arranged to form a casting cavity (3), a pouring channel (4) is arranged on the lower die (2), an exhaust hole (5) is arranged on the upper die (1), and the low-pressure casting die is characterized in that,
the casting cavity (3) is provided with a first casting wall (302), a second casting wall (303) and further comprises,
the upper molding module (101) and the lower molding module (201) are arranged, the upper molding module (101) is arranged on the upper mold (1), the lower molding module (201) is arranged on the lower mold (2), the upper molding module (101) and the lower molding module (201) are both positioned between the first pouring wall (302) and the second pouring wall (303), gaps are reserved between the upper molding module and the second pouring wall (303), the upper molding module and the lower molding module are arranged oppositely, gaps are reserved between the upper molding module and the lower molding module, the first pouring wall (302), the second pouring wall (303) and the upper molding module (101), and the lower molding module (201) is used for forming a frame structure of a workpiece;
the module (101) is gone up in the shaping with module (201) is a plurality of under the shaping, sets gradually, and is adjacent leave exhaust seam (11) between module (101) in the shaping, and is adjacent leave exhaust seam (11) between module (201) under the shaping.
2. The low-pressure casting mold according to claim 1, wherein the number of the runners (4) is two, the gates of the two runners (4) are located on the bottom surface of the lower mold (2), and the gates of the two runners (4) are located on the same plane.
3. The low pressure casting mold according to claim 1, wherein a plurality of the top block cavities (301) are further provided between the upper mold (1) and the lower mold (2), the top block cavities (301) are respectively provided on a side of the first casting wall (302) away from the second casting wall (303) or a side of the second casting wall (303) away from the first casting wall (302), the top block cavities (301) communicate with the casting cavity (3), the top block cavities (301) are used for forming a top block,
the upper die (1) is also provided with a screw hole (102), the screw hole (102) is vertically arranged, penetrates through the upper die (1) and is communicated with the ejector block cavity (301),
also comprises the following steps of (1) preparing,
ejector pin (103), ejector pin (103) are a plurality of, and the slip sets up in screw hole (102), just ejector pin (103) stretch into kicking block chamber (301).
4. The low pressure casting mold as claimed in claim 3, further comprising a top plate (104), wherein the top plate (104) is slidably disposed above the upper mold (1), and a plurality of the ejector rods (103) are connected to the top plate (104),
a spring for providing a force of the top plate (104) away from the upper die (1).
5. The low pressure casting mold as claimed in claim 1, further comprising,
and the side die (6) is arranged on the lower die (2) in a sliding manner, slides along the horizontal direction and extends into the casting cavity (3) for forming a side hole.
6. The low pressure casting mold as claimed in claim 3, further comprising,
the ventilation pipes (8) are multiple, the ventilation pipes (8) are arranged in the screw holes (102) respectively, and the ventilation pipes (8) are used for cooling the casting cavity (3).
7. The low pressure casting mold as claimed in claim 1, further comprising,
heating hole (9), heating hole (9) are a plurality of, evenly set up respectively go up mould (1) with on lower mould (2), and set up along the horizontal direction, be used for doing through the heating rod heating hole (9) heat.
8. The low-pressure casting die as claimed in claim 1, wherein a plurality of cap cavities (10) are further arranged between the upper die (1) and the lower die (2), the cap cavities (10) are respectively arranged on one side of the first casting wall (302) far away from the second casting wall (303) or one side of the second casting wall (303) far away from the first casting wall (302), the cap cavities (10) are communicated with the casting cavity (3), and the cap cavities (10) are used for feeding a workpiece.
9. A process for low pressure casting using the low pressure casting mold as claimed in claims 1 to 7, comprising,
step A, smelting and purifying the metal solution,
step B, refining the purified molten metal, adding rare earth alloy, controlling the content of rare earth components,
step C, standing and degassing the refined molten metal,
step D, casting the metal liquid with the gas removed into a mould for low-pressure casting,
step E, completing the casting for X-ray flaw detection,
step F, the qualified products are repaired and rubbed, heat treatment is carried out after the completion,
and G, performing mechanical detection on the workpiece subjected to heat treatment, and removing other auxiliary blanks after the detection is qualified.
10. The process for low pressure casting according to claim 9, wherein step D further comprises,
d1, preheating the mould in the casting cavity,
d2, after preheating, starting low-pressure casting, after casting for a period of time, starting air cooling,
d3, after the casting is finished, the side die is removed,
d4, after the side die is demolded, separating the upper die and the lower die, demolding,
d5, when demoulding, the bolt between the top plate and the upper die needs to be taken down firstly, the top plate is pressed down, and the plurality of ejector rods are ejected synchronously to realize demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210027735.8A CN114346213A (en) | 2022-01-11 | 2022-01-11 | Low-pressure casting die and low-pressure casting process suitable for same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210027735.8A CN114346213A (en) | 2022-01-11 | 2022-01-11 | Low-pressure casting die and low-pressure casting process suitable for same |
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| JPH08174186A (en) * | 1994-12-27 | 1996-07-09 | Nissan Motor Co Ltd | Low pressure casting method and mold for low pressure casting |
| JPH11216555A (en) * | 1998-01-28 | 1999-08-10 | Mazda Motor Corp | Low pressure casting |
| JP2003340558A (en) * | 2002-05-24 | 2003-12-02 | Ube Automotive Ltd | Method for venting gas inside mold and mold of casting apparatus |
| JP2015205317A (en) * | 2014-04-22 | 2015-11-19 | 日産自動車株式会社 | casting apparatus |
| CN208613719U (en) * | 2018-07-03 | 2019-03-19 | 山东泰开精密铸造有限公司 | A kind of crossbeam class casting low pressure casting die |
| CN209223157U (en) * | 2018-12-20 | 2019-08-09 | 佛山市南海奔达模具有限公司 | Vacuum type low pressure wheel hub casting mould |
| US20190344335A1 (en) * | 2018-05-10 | 2019-11-14 | Adolf Hetke | Casting system |
| CN214684220U (en) * | 2021-02-23 | 2021-11-12 | 浙江今飞凯达轮毂股份有限公司 | H type automobile wheel hub low pressure casting mould and wheel hub foundry goods thereof |
-
2022
- 2022-01-11 CN CN202210027735.8A patent/CN114346213A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08174186A (en) * | 1994-12-27 | 1996-07-09 | Nissan Motor Co Ltd | Low pressure casting method and mold for low pressure casting |
| JPH11216555A (en) * | 1998-01-28 | 1999-08-10 | Mazda Motor Corp | Low pressure casting |
| JP2003340558A (en) * | 2002-05-24 | 2003-12-02 | Ube Automotive Ltd | Method for venting gas inside mold and mold of casting apparatus |
| JP2015205317A (en) * | 2014-04-22 | 2015-11-19 | 日産自動車株式会社 | casting apparatus |
| US20190344335A1 (en) * | 2018-05-10 | 2019-11-14 | Adolf Hetke | Casting system |
| CN208613719U (en) * | 2018-07-03 | 2019-03-19 | 山东泰开精密铸造有限公司 | A kind of crossbeam class casting low pressure casting die |
| CN209223157U (en) * | 2018-12-20 | 2019-08-09 | 佛山市南海奔达模具有限公司 | Vacuum type low pressure wheel hub casting mould |
| CN214684220U (en) * | 2021-02-23 | 2021-11-12 | 浙江今飞凯达轮毂股份有限公司 | H type automobile wheel hub low pressure casting mould and wheel hub foundry goods thereof |
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