WO2013131405A1 - Low-pressure casting device - Google Patents
Low-pressure casting device Download PDFInfo
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- WO2013131405A1 WO2013131405A1 PCT/CN2013/000205 CN2013000205W WO2013131405A1 WO 2013131405 A1 WO2013131405 A1 WO 2013131405A1 CN 2013000205 W CN2013000205 W CN 2013000205W WO 2013131405 A1 WO2013131405 A1 WO 2013131405A1
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- Prior art keywords
- melt
- furnace
- low
- pressure casting
- casting
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- 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
Definitions
- the present invention relates to the field of casting equipment, and more particularly to a low pressure casting apparatus.
- K casting is a method in which a molten metal fills a cavity under pressure to form a casting.
- the low-pressure casting device is generally composed of a furnace (or crucible) and an insulation attachment, a mold cavity and a mold base assembly, and a gas supply pressurization portion.
- a sealed furnace or crucible
- a dry compressed gas is introduced, and the molten metal rises along the melt riser under the action of gas pressure, smoothly enters the cavity through the gate, and remains in the furnace.
- the gas pressure of the liquid level h until the casting is completely solidified.
- the gas pressure of the liquid level h is released, and the unsolidified molten metal M flow in the melt riser is opened by the cylinder and the casting is pushed out.
- CN201511113U discloses a low-pressure casting device comprising a cavity, a runner and a crucible, the sprue being disposed at the bottom of the cavity; one end of the runner M is inserted into the cavity, and the other end is connected Reducing a melt riser; the inner passage of the melt riser communicates with the inner cavity of the cavity through the inner passage of the runner; the cavity is fixed on the crucible and sealed with the crucible The molten metal lifter is inserted into the crucible from an end H of the sprue; and an upper portion of the crucible is provided with an air duct for introducing compressed air.
- the device can reduce the porosity of the casting due to shrinkage and shrinkage, and the cast casting has good compactness and good mechanical properties.
- CN201644758U discloses a low-pressure casting machine, which comprises a frame assembly, a feeding device: a molding device, a demolding device and a control system, and realizes coordinated operation of each component based on the PLC control principle, and automatically completes the low
- the control system can conveniently control the movement of the feeding device and leave the distance of the casting machine frame section, which facilitates the feeding, maintenance and history of the melt riser.
- the control system can also control the lateral movement of the forming device.
- the mold and the mold opening action control the mold release and move the product to pull the mold out of the mold to perform the mold release action, and the automatic process is high.
- the structure of the hydraulic cylinder reverse assembly can effectively avoid the influence of the high temperature mold.
- the oil leakage is effectively improved, and the quality and production efficiency of the product are effectively improved.
- the low-pressure casting is a compressed gas-i.
- the pressure is applied to the molten metal in the furnace (or crucible), and the gas is used in a large amount, the pressure is slow, the consumption is long, and the energy consumption is high.
- the boost is affected by the furnace, and the increased pressure tends to damage the insulation layer disposed in the low-pressure alloy furnace.
- the technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a reasonable and compact structure, a small amount of compressed gas, fast boost, high efficiency, and no damage to the furnace. Insulation layer, less oxidation loss of the melt, long service life, casting quality S: high low pressure casting installation.
- a low-pressure casting device comprising a baking furnace and a heat insulating attachment, a mold cavity and a mold frame assembly, and a gas supply pressurizing portion, wherein:
- the crucible is provided with a crucible/melt transfer bag, and a melt riser in which the crucible is connected with the cavity gate is disposed in the transfer medium, and the intake pipe of the gas supply pressurization portion is inserted into the melt transfer package.
- the bottom of the subpackage of the melt in the present invention is provided with an inlet check valve that communicates with the inner cavity of the furnace.
- the melt crucible package of the present invention is slinged and fixed on a furnace cover of a melting furnace.
- the transfer of the melt in the present invention is closed [Ml cylindrical shape.
- the melt crucible package of the present invention is a closed box.
- the present invention provides a melt crucible in a sealed furnace, and the gold liquid in the furnace enters the melt crucible through the one-way valve, and an intake pipe is arranged above the inner cavity of the melt.
- the compressed gas supplied to the pressurized portion of the gas enters the melt through the intake pipe, and the check valve is automatically closed under the action of the pressure.
- the molten metal rises along the molten riser under the action of the gas pressure.
- the gate smoothly enters the mold cavity and maintains the gas pressure on the liquid surface in the furnace until the casting solidifies, and then the cylinder is extruded and the casting is pushed out.
- the present invention does not directly add a compressed gas in the melting furnace, but installs a melt transfer package in the furnace, and provides a melt riser and a compressed gas intake pipe in the melt in the melt, which is convenient.
- Increasing the gas pressure, adjusting the range of the pressurized gas boost, the amount of compressed gas in the sub-pack of the melt is small, and the boosting is fast, which makes the control of the casting pressure regulating process more precise.
- the invention does not damage the thermal insulation layer in the furnace, and the oxidation loss of the melt is small, which directly reduces the use amount of the compressed gas and improves the quality of the casting.
- FIG. 1 is a schematic view showing the structure of the foot wood invention.
- FIG. 2 is a schematic view showing another structure of the present invention.
- the figures are: 1. Furnace, 2. Melt towel subcontracting, 3. Melt riser, 4. Check valve, 5. Intake pipe, 6. Gold bake, 7. Furnace cover, 8 Furnace cover, 9. Cavity, 10. Formwork assembly.
- a low-pressure casting device includes a furnace 1 and a heat insulating attachment, a mold cavity 9 and a mold base assembly 10, and a supply portion (pressurized portion.
- a furnace cover 7 an upper part is provided with a furnace cover 8 and an externally mounted thermal insulation jacket.
- the mold cavity 9 and the mold base assembly 10 are fixed on the furnace 1.
- the present invention is characterized in that: the furnace 1 is provided with a smelting liquid transfer package 2, the melt transfer package 2 is made of a material used for bismuth, and the melt transfer package can be a closed box, such as Figure 1; can also close the cylinder, as shown in Figure 2.
- the melt intermediate package 2 of the present invention is hoisted and fixed to the furnace cover 8 of the furnace 1.
- the melt transfer bag 2 is provided with a melt riser 3 communicating with the cavity 9 in the U, and the molten riser 3 is inserted away from the gate of the cavity 9 into the molten metal in the transfer package 2 6 in.
- the intake pipe 5 of the gas supply pressurizing portion extends into the melt intermediate package 2, and the inlet pipe 5 is located above the inner cavity of the melt in the melt.
- ⁇ subpackage 2 of the present invention is provided with an inlet check valve 4 communicating with the inner cavity of the furnace.
- the molten metal 6 of the furnace 1 can enter the melt transfer bag 2 through the check valve 4, and when the casting starts, the compressed gas enters the melt transfer bag 2 through the intake pipe 5, and the check valve 4 is automatically driven by the force.
- the metal melt is under the pressure of the gas, it rises along the melt riser 3, smoothly enters the mold cavity 9 through the gate, and maintains the gas pressure on the liquid in the furnace, until the casting solidifies.
- the present invention does not directly add a compressed gas in the melting furnace, but instead provides a melt transfer in the furnace.
- melt riser and the compressed gas intake pipe are arranged in the melt transfer package, which can conveniently increase the gas pressure and adjust the range of the compressed gas rise/K.
- Compressed gas in the melt transfer package 3 ⁇ 4 less, faster boost, making the casting pressure regulation process more precise.
- the insulation layer in the furnace is not damaged, the oxidation loss of the melt is small, the use amount of the compressed gas is directly reduced, the quality of the casting is improved, the rejection rate is reduced, the amount of raw materials and energy consumption is saved, and the production efficiency is increased.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
一种低压铸造装置 Low pressure casting device
技术领域 Technical field
[0001] 本发明涉及铸造装备领域， 具体地说是一种低压铸造装置。 [0001] The present invention relates to the field of casting equipment, and more particularly to a low pressure casting apparatus.
背景技术 Background technique
[0002] 低 :K铸造是金属熔液在压力作用下充填型腔， 以形成铸件的一种方法。 低压铸造装置 -般由熔炉 （或坩埚） 及保温附件、 铸 型腔及模架组件、 供气 加压部分组成。 其是在密封的熔炉 （或坩埚） 中， 通入干燥的压縮气休， 金属 液在气体压力的作用下， 沿熔液提升管上升， 通过浇口平稳地进入型腔， 并保 持熔炉内液面 h的气体压力， 一直到铸件完全凝固为止。 然后解除液面 h的气 体压力， 熔液提升管中未凝固的金属液 M流， 再由气缸开型并推出铸件。 [0002] Low : K casting is a method in which a molten metal fills a cavity under pressure to form a casting. The low-pressure casting device is generally composed of a furnace (or crucible) and an insulation attachment, a mold cavity and a mold base assembly, and a gas supply pressurization portion. In a sealed furnace (or crucible), a dry compressed gas is introduced, and the molten metal rises along the melt riser under the action of gas pressure, smoothly enters the cavity through the gate, and remains in the furnace. The gas pressure of the liquid level h until the casting is completely solidified. Then, the gas pressure of the liquid level h is released, and the unsolidified molten metal M flow in the melt riser is opened by the cylinder and the casting is pushed out.
[0003] CN201511113U公幵了一种低压铸造装置， 包括型腔、 浇道和坩埚， 所述 的浇道设于型腔底部； 所述浇道的一端 M入在型腔内， 其另一端连接冇 少一 根熔液提升管； 所述的熔液提升管的内通道经所述浇道的内通道与所述型腔的 内腔相通； 所述的型腔固定在坩埚上且与坩埚密封； 所述的熔液提升钤远离浇 道的一端 H入在坩埚内； 所述坩埚的上部设有一通入压缩^气用的空气管道。 [0003] CN201511113U discloses a low-pressure casting device comprising a cavity, a runner and a crucible, the sprue being disposed at the bottom of the cavity; one end of the runner M is inserted into the cavity, and the other end is connected Reducing a melt riser; the inner passage of the melt riser communicates with the inner cavity of the cavity through the inner passage of the runner; the cavity is fixed on the crucible and sealed with the crucible The molten metal lifter is inserted into the crucible from an end H of the sprue; and an upper portion of the crucible is provided with an air duct for introducing compressed air.
. t.述装置可减少铸件因缩孔、 缩松而产 .的气孔且铸造的铸件组织致密性好、 力学性能好。 The device can reduce the porosity of the casting due to shrinkage and shrinkage, and the cast casting has good compactness and good mechanical properties.
[0004] CN201644758U公开了一种低压铸造机， 包括机架组件、 供料装: 、 成型 装置、脱模装置和控制系统， 基于 PLC [^动控制原理来实现各部件的协调动作， 自动完成低 K铸造全过程，使用时， 控制系统可方便的控制供料装置移动并离开 铸造机机架 段距离， 便于加料、 维修和熔液提升管史换， 控制系统还可控制 成型装置横向移动进行合模和开模动作, 控制脱模装 下移动将铸造完成的 产品拉出模¾进行脱模动作， 自动化程皮高， 同时,液压缸反装的结构也可有效 避免高温模 对其的影响， 以免液压构件热变形影响铸造精度和密封陶火效造 成漏油， 有效提高了产品的质量和生产效宇-。 [0004] CN201644758U discloses a low-pressure casting machine, which comprises a frame assembly, a feeding device: a molding device, a demolding device and a control system, and realizes coordinated operation of each component based on the PLC control principle, and automatically completes the low During the whole process of K casting, the control system can conveniently control the movement of the feeding device and leave the distance of the casting machine frame section, which facilitates the feeding, maintenance and history of the melt riser. The control system can also control the lateral movement of the forming device. The mold and the mold opening action control the mold release and move the product to pull the mold out of the mold to perform the mold release action, and the automatic process is high. At the same time, the structure of the hydraulic cylinder reverse assembly can effectively avoid the influence of the high temperature mold. In order to avoid the thermal deformation of hydraulic components affecting the casting precision and sealing the fire effect, the oil leakage is effectively improved, and the quality and production efficiency of the product are effectively improved.
[0005] 上述低压铸造装 a屮压缩气体—i.接将压力作用于熔炉 （或坩埚） 中的金 属液上， W而气体用量大， 升压较慢， 耗吋长、 能耗多， 特别是升压受到熔炉 的影响， 压力增高容易损坏设置在低压机合金熔炉内的保温层。 [0005] The low-pressure casting is a compressed gas-i. The pressure is applied to the molten metal in the furnace (or crucible), and the gas is used in a large amount, the pressure is slow, the consumption is long, and the energy consumption is high. The boost is affected by the furnace, and the increased pressure tends to damage the insulation layer disposed in the low-pressure alloy furnace.
发明内容 Summary of the invention
[0006] 本发明要解决的技术 l'»J题是为了克服上述现有技术的不足， 提供 -种构 造合理、 紧凑， 压缩气体川量少， 升压快， 效率高， 不会损坏熔炉内的保温层， 熔液氧化损失少， 使用寿命长， 铸件质 S:高的低压铸造装《。 [0006] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a reasonable and compact structure, a small amount of compressed gas, fast boost, high efficiency, and no damage to the furnace. Insulation layer, less oxidation loss of the melt, long service life, casting quality S: high low pressure casting installation.
[0007] 本发明解决上述技术问题采用的技术方案是： - 种低压铸造装^， 包括 有焙炉及保温附件、 铸型型腔及模架组件、 供气加压部分， 其特征是： 所述熔 炉内设冇 ·熔液中转包， 所述熔液中转包内设冇与型腔浇口连通的熔液提升管， 供气加压部分的进气管仲入熔液中转包内。 [0007] The technical solution adopted by the present invention to solve the above technical problems is as follows: - a low-pressure casting device, comprising a baking furnace and a heat insulating attachment, a mold cavity and a mold frame assembly, and a gas supply pressurizing portion, wherein: The crucible is provided with a crucible/melt transfer bag, and a melt riser in which the crucible is connected with the cavity gate is disposed in the transfer medium, and the intake pipe of the gas supply pressurization portion is inserted into the melt transfer package. .
[0008] 本发明所述熔液中转包底部设有与 炉内腔连通的进液单向阀。 [0008] The bottom of the subpackage of the melt in the present invention is provided with an inlet check valve that communicates with the inner cavity of the furnace.
[0009] 本发明所述熔液屮转包吊装固定在熔炼炉的熔炉盖板上。 [0009] The melt crucible package of the present invention is slinged and fixed on a furnace cover of a melting furnace.
[0010] 本发明所述熔液中转包为封闭 [Ml筒形。 [0010] The transfer of the melt in the present invention is closed [Ml cylindrical shape.
1 1
替换页 （细则第 26条） [001 1 ] 本发明所述熔液屮转包为封闭箱休。 Replacement page (Article 26) [001 1] The melt crucible package of the present invention is a closed box.
[0012] 本发明在密封的熔炉中设置一熔液屮转包， 熔炉中的金^瑢液通过单向 阀进入熔液屮转包， 熔液中转包内腔上方设有进气管， 开始铸造时， 供气加压 部分的压缩气体通过进气管进入熔液中转包， 单向阀在压力的作用下自动关闭， 金属熔液在气体压力的作用下， 沿熔液提升管上升， 通过浇口平稳地进入模具 型腔， 并保持熔炉内液面上的气体压力， 一直到铸件凝固为止， 再由气缸丌型 并推出铸件。 然后解除液面上的气体压力， 熔液提升管中未凝固的金属液回流 至熔液中转包内， 熔炉内的金属熔液也通过单向阀补充到熔液中转包中， 继续 进行下一件铸造。 对照现有技术， 本发明不直接在熔炼炉内加入压缩气体， 而 是在熔炉中设置一熔液中转包， 在熔液中转包内设置熔液提升管和压缩气体进 气管， 可以方便提高气体压力， 调整压縮气体升压的范围， 熔液中转包中压缩 气体用量少， 升压快， 使得铸造调压过程控制更精确。 本发明不会损坏熔炉内 的保温层， 熔液氧化损失少， 直接减少了压缩气体的使用量， 提高了铸件质量。 附图说明 [0012] The present invention provides a melt crucible in a sealed furnace, and the gold liquid in the furnace enters the melt crucible through the one-way valve, and an intake pipe is arranged above the inner cavity of the melt. During casting, the compressed gas supplied to the pressurized portion of the gas enters the melt through the intake pipe, and the check valve is automatically closed under the action of the pressure. The molten metal rises along the molten riser under the action of the gas pressure. The gate smoothly enters the mold cavity and maintains the gas pressure on the liquid surface in the furnace until the casting solidifies, and then the cylinder is extruded and the casting is pushed out. Then, the gas pressure on the liquid surface is released, and the unsolidified metal liquid in the melt riser is returned to the molten material in the sub-package, and the molten metal in the furnace is also replenished into the melt transfer package through the one-way valve, and the continuation is continued. Next casting. Compared with the prior art, the present invention does not directly add a compressed gas in the melting furnace, but installs a melt transfer package in the furnace, and provides a melt riser and a compressed gas intake pipe in the melt in the melt, which is convenient. Increasing the gas pressure, adjusting the range of the pressurized gas boost, the amount of compressed gas in the sub-pack of the melt is small, and the boosting is fast, which makes the control of the casting pressure regulating process more precise. The invention does not damage the thermal insulation layer in the furnace, and the oxidation loss of the melt is small, which directly reduces the use amount of the compressed gas and improves the quality of the casting. DRAWINGS
[0013] 下面结合附图对本发明作进 步描述。 [0013] The present invention will be further described below in conjunction with the accompanying drawings.
[0014] 图 1足木发明的 种结构示意图。 [0014] FIG. 1 is a schematic view showing the structure of the foot wood invention.
[0015] 图 2是本发明的另 种结构示意图。 2 is a schematic view showing another structure of the present invention.
[0016] 图中标号是： 1.熔炉， 2.熔液巾转包， 3.熔液提升管， 4.单向阀， 5.进气管， 6.金 焙液， 7.炉盖， 8.熔炉盖板， 9.型腔， 10.模架组件。 [0016] The figures are: 1. Furnace, 2. Melt towel subcontracting, 3. Melt riser, 4. Check valve, 5. Intake pipe, 6. Gold bake, 7. Furnace cover, 8 Furnace cover, 9. Cavity, 10. Formwork assembly.
[0017] 从图 1、图 2中可以看出，一种低压铸造装置，包括有熔炉 1及保温附件、 铸型型腔 9及模架组件 10、 供- (加压部分。 熔炉 1侧面设有炉盖 7， 上部设有 熔炉盖板 8， 外部装冇保温绝热套。 所述的铸型型腔 9及模架組件 10固定在熔 炉 1上。 上述组成、 结构属于现冇技术， 不再赘述。 [0017] As can be seen from FIG. 1 and FIG. 2, a low-pressure casting device includes a furnace 1 and a heat insulating attachment, a mold cavity 9 and a mold base assembly 10, and a supply portion (pressurized portion. There is a furnace cover 7, an upper part is provided with a furnace cover 8 and an externally mounted thermal insulation jacket. The mold cavity 9 and the mold base assembly 10 are fixed on the furnace 1. The above composition and structure belong to the prior art, no longer Narration.
[0018] 本发明的特点是： 所述熔炉 1内设冇 熔液中转包 2， 所述熔液中转包 2 由坩埚所用材料制成， 熔液中转包可以为封闭箱体， 如图 1 所示； 也可以封闭 圆筒形， 如图 2所示。本发明所述熔液中转包 2吊装固定在熔炉 1的熔炉盖板 8 上。 所述熔液中转包 2内设有与型腔 9浇 U连通的熔液提升管 3， 熔液提升管 3 远离型腔 9浇口的一端插入焙液中转包 2中的金属熔液 6中。 供气加压部分的 进气管 5伸入熔液中转包 2内， 进气管 5管口位于熔液中转包内腔上方。 [0018] The present invention is characterized in that: the furnace 1 is provided with a smelting liquid transfer package 2, the melt transfer package 2 is made of a material used for bismuth, and the melt transfer package can be a closed box, such as Figure 1; can also close the cylinder, as shown in Figure 2. The melt intermediate package 2 of the present invention is hoisted and fixed to the furnace cover 8 of the furnace 1. The melt transfer bag 2 is provided with a melt riser 3 communicating with the cavity 9 in the U, and the molten riser 3 is inserted away from the gate of the cavity 9 into the molten metal in the transfer package 2 6 in. The intake pipe 5 of the gas supply pressurizing portion extends into the melt intermediate package 2, and the inlet pipe 5 is located above the inner cavity of the melt in the melt.
[0019] 本发明所述熔液' | ι转包 2底部设有与熔炉内腔连通的进液单向阀 4。熔炉 1屮的金属熔液 6可通过单向阀 4进入熔液中转包 2， 开始铸造时， 压缩气体通 过进气管 5进入熔液中转包 2， 单向阀 4在 力的作用下自动关闭， 金属熔液在 气体压力的作川下， 沿熔液提升管 3上升， 通过浇口平稳地进入模具型腔 9， 并 保持熔炉内液而上的气体压力， - 直到铸件凝固为止。 然后解除液面上的气体 压力， 熔液提升管 3中未凝固的金属液回流至熔液中转包 2内， 单向阀 4在熔 炉内的金属熔液 6压力下自动打开， 金属熔液 6通过单向阀 4继续补充到熔液 中转包 2中， 继续进行下一件铸造。 [0019] The bottom of the melt ' | ι subpackage 2 of the present invention is provided with an inlet check valve 4 communicating with the inner cavity of the furnace. The molten metal 6 of the furnace 1 can enter the melt transfer bag 2 through the check valve 4, and when the casting starts, the compressed gas enters the melt transfer bag 2 through the intake pipe 5, and the check valve 4 is automatically driven by the force. When the metal melt is under the pressure of the gas, it rises along the melt riser 3, smoothly enters the mold cavity 9 through the gate, and maintains the gas pressure on the liquid in the furnace, until the casting solidifies. Then, the gas pressure on the liquid surface is released, and the unsolidified metal liquid in the melt riser 3 is returned to the melt transfer bag 2, and the check valve 4 is automatically opened under the pressure of the metal melt 6 in the furnace, the metal melt 6 Continue to replenish into the melt transfer bag 2 through the check valve 4, and continue the next casting.
[0020] 本发明不直接在熔炼炉内加入压缩气体， 而是在熔炉中设置一熔液中转 [0020] The present invention does not directly add a compressed gas in the melting furnace, but instead provides a melt transfer in the furnace.
2 2
替换页 （细则第 26条） 包， 在熔液中转包内设置熔液提升管和压缩气体进气管， 可以方便提高气体压 力， 调整压缩气体升/ K的范围。 熔液屮转包中压缩气体用: ¾少， 升压快， 使得 铸造调压过程控制更精确。 而且， 不会损坏熔炉内的保温层， 熔液氧化损失少， 直接减少了压缩气体的使用量， 提高了铸件质量， 降低了废品率， 节约了原辅 料用量和能耗， 增加了生产效益。 Replacement page (Article 26) In the package, the melt riser and the compressed gas intake pipe are arranged in the melt transfer package, which can conveniently increase the gas pressure and adjust the range of the compressed gas rise/K. Compressed gas in the melt transfer package: 3⁄4 less, faster boost, making the casting pressure regulation process more precise. Moreover, the insulation layer in the furnace is not damaged, the oxidation loss of the melt is small, the use amount of the compressed gas is directly reduced, the quality of the casting is improved, the rejection rate is reduced, the amount of raw materials and energy consumption is saved, and the production efficiency is increased.
3 3
替换页 （细则第 26条) Replacement page (Article 26)
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| CN2012100577556A CN102527994A (en) | 2012-03-07 | 2012-03-07 | Low-pressure casting device |
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| CN102527994A (en) * | 2012-03-07 | 2012-07-04 | 威海万丰镁业科技发展有限公司 | Low-pressure casting device |
| CN102962431A (en) * | 2012-11-08 | 2013-03-13 | 贵州红林机械有限公司 | Aluminum alloy low-pressure casting liquid rising heat insulation tank |
| CN102962433A (en) * | 2012-12-06 | 2013-03-13 | 淄博宏泰防腐有限公司 | Magnesium alloy low-pressure casting equipment |
| CN112893807B (en) * | 2021-01-25 | 2022-07-08 | 绍兴汇铭汽配有限公司 | Low-pressure casting machine |
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|---|---|---|---|---|
| US5113924A (en) * | 1990-08-17 | 1992-05-19 | Hitchiner Manufacturing Co., Inc. | Method of casting wear-resistant, cast iron machine element |
| CN2569949Y (en) * | 2002-09-30 | 2003-09-03 | 福州华镁新技术开发有限公司 | Magnesium alloy low-pressure die-casting machine which is convenient for dismounting and cleaning |
| CN1507970A (en) * | 2002-12-16 | 2004-06-30 | 威海万丰镁业科技发展有限公司 | Magnesium alloy hub pressure casting apparatus and method thereof |
| CN102527994A (en) * | 2012-03-07 | 2012-07-04 | 威海万丰镁业科技发展有限公司 | Low-pressure casting device |
| CN202447640U (en) * | 2012-03-07 | 2012-09-26 | 威海万丰镁业科技发展有限公司 | Low pressure casting device |
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| CN101579728B (en) * | 2008-06-10 | 2011-06-15 | 万丰奥特控股集团有限公司 | Centrifugal casting method and device of magnesium alloy hub |
| CN101823136A (en) * | 2009-10-22 | 2010-09-08 | 山西银光华盛镁业股份有限公司 | Bi-crucible low pressure casting method for magnesium alloy hub and equipment thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113924A (en) * | 1990-08-17 | 1992-05-19 | Hitchiner Manufacturing Co., Inc. | Method of casting wear-resistant, cast iron machine element |
| CN2569949Y (en) * | 2002-09-30 | 2003-09-03 | 福州华镁新技术开发有限公司 | Magnesium alloy low-pressure die-casting machine which is convenient for dismounting and cleaning |
| CN1507970A (en) * | 2002-12-16 | 2004-06-30 | 威海万丰镁业科技发展有限公司 | Magnesium alloy hub pressure casting apparatus and method thereof |
| CN102527994A (en) * | 2012-03-07 | 2012-07-04 | 威海万丰镁业科技发展有限公司 | Low-pressure casting device |
| CN202447640U (en) * | 2012-03-07 | 2012-09-26 | 威海万丰镁业科技发展有限公司 | Low pressure casting device |
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