WO2018094748A1 - 纯度999.999‰贵金属饰品加工设备及方法 - Google Patents

纯度999.999‰贵金属饰品加工设备及方法 Download PDF

Info

Publication number
WO2018094748A1
WO2018094748A1 PCT/CN2016/107705 CN2016107705W WO2018094748A1 WO 2018094748 A1 WO2018094748 A1 WO 2018094748A1 CN 2016107705 W CN2016107705 W CN 2016107705W WO 2018094748 A1 WO2018094748 A1 WO 2018094748A1
Authority
WO
WIPO (PCT)
Prior art keywords
precious metal
tooling platform
punch
fixed
mold
Prior art date
Application number
PCT/CN2016/107705
Other languages
English (en)
French (fr)
Inventor
王忠善
刘兴龙
魏小华
吴明意
Original Assignee
山东梦金园珠宝首饰有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 山东梦金园珠宝首饰有限公司 filed Critical 山东梦金园珠宝首饰有限公司
Publication of WO2018094748A1 publication Critical patent/WO2018094748A1/zh

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A44C27/001—Materials for manufacturing jewellery
    • A44C27/002—Metallic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings

Definitions

  • the invention claims the priority of the Chinese invention patent application whose application date is November 24, 2016, application number 201611067618.5, and the name is "purity 999.999 ⁇ precious metal jewelry processing equipment and method".
  • the invention belongs to the technical field of precious metal processing, and particularly relates to an apparatus and a method for separating a steel mold and a plaster mold of a precious metal jewelry casting such as gold, silver, platinum, palladium and the like.
  • the purity of precious metals such as gold, silver, platinum, and palladium is the decisive factor determining the market value of the jewelry, and the purity is closely related to the processing technology. For some complicated shapes, it generally needs to undergo gold, mold, polishing, die-casting, calendering, car-flowering, etc. Therefore, only in such a large number of processes can reduce or avoid the intrusion of impurities, in order to obtain High purity 999.999 ⁇ precious metal jewelry.
  • the mold is a process of precious metal processing, which refers to a process of pouring molten gold into a plaster mold by a centrifugal casting machine to cast a casting.
  • the Chinese invention patent application CN102107259A discloses a casting method of a carcass ornament, which mentions A mold is prepared, and a wax mold, a wax tree and a plaster mold are prepared, and then the molten metal is injected into the plaster mold along the runner, cooled, and the plaster mold is crushed to take out the workpiece.
  • the plaster mold is formed in a container, which is known in the art as a steel shovel.
  • the steel shovel is actually a metal sleeve that is not sealed up and down.
  • the steel shovel must first be separated from the plaster mold. .
  • the cast steel shovel is placed in cold water, and the gypsum mold containing the workpiece is separated from the steel shovel by the principle of thermal expansion and contraction. Since the temperature of the steel shovel is high, it will be generated after encountering cold water. Deformation, thus shortening the service life.
  • the steel shovel will also cause splashing when it encounters cold water, which may cause burns and pose a certain danger to the operator.
  • the technical problem to be solved by the present invention is to provide a processing method for purifying 999.999 ⁇ precious metal jewelry.
  • another technical problem to be solved by the present invention is to provide an apparatus capable of implementing the method, the above device and The method makes it unnecessary to use cold water when separating the steel mold and the plaster mold, thereby ensuring the hardness of the precious metal jewelry during demolding, thereby ensuring that the precious metal jewelry is not easily mixed with impurities in the subsequent processing, and finally ensuring the high purity of the precious metal jewelry. .
  • a precious metal jewelry processing apparatus comprising: a frame, the frame comprises a base, the base is fixed to two uprights, and upper ends of the two uprights Connected with a beam; a hydraulic cylinder, the hydraulic cylinder is mounted on an upper portion of the beam, a piston rod of the hydraulic cylinder is connected with a punch and protrudes downwardly from the beam; a tooling platform, the tooling platform is opened and a matching hole of the outer peripheral surface of the inverted steel plate of the jewelry; the base is fixed with an anvil plate seat, the anvil plate seat is fixed with an anvil plate, the anvil plate is located below the punch, and the chopping block is provided with an open groove The cutting block is fixed with a guide rail for restraining movement of the tooling platform along the open slot.
  • the guide rail comprises two oppositely disposed slot plates, at least one of the slot plates is provided with a positioning pin, and the tooling platform is provided with a limiting slot adapted to the positioning pin.
  • the anvil is fixed to the upright.
  • the technical solution of the present invention is: a method for processing a precious metal jewelry, comprising the following steps:
  • the invention uses the punching pressure of the punch to punch the plaster mold out of the inverted steel shovel, so that the plaster mold is poured
  • the die steel is mechanically separated.
  • This separation method can eliminate the need to use cold water when the steel mold is separated from the plaster mold, and then remove the jewelry from the plaster mold after natural cooling, and the high-temperature molten jewelry will not become soft due to sudden cold water cooling, which ensures The hardness of the precious metal jewelry during demolding, so as to ensure that the precious metal jewelry is not easy to mix impurities in the subsequent processing, and finally ensure the high purity of the precious metal jewelry.
  • Figure 1 is a perspective view (state of use) of an embodiment of the precious metal jewelry processing apparatus of the present invention
  • Figure 2 is a partial cross-sectional view showing the assembly structure of the tooling platform and the inverted steel sill of Figure 1;
  • the two pillars 11 of the frame 1 of the precious metal jewelry processing equipment are oppositely disposed, and the beam 12 is fixedly connected to the upper ends of the two pillars 11.
  • the pillars 11 are The base 13 is fixedly connected to the lower end.
  • the components constituting the frame 1 may be fixedly connected by welding, bolting, or the like, and of course, may be connected by other conventional fixed connection methods.
  • a hydraulic cylinder 2 is attached to the upper portion of the beam 12, and a punch 3 is attached to the end of the piston rod of the hydraulic cylinder 2, and the punch 3 projects downwardly from the beam 12.
  • a chopping block 8 is disposed under the punch 3, and the chopping block 8 is fixed on the base 13.
  • the upper end surface of the chopping block 8 is fixed with an anvil plate 81, and an open groove is opened on the chopping plate 81.
  • the inverted steel shovel is placed directly below the punch 3 (this is described in detail below).
  • the upper surface of the cutting block 81 is fixedly provided with two oppositely disposed groove plates 9 which form guide rails for restricting the movement of the tooling platform 4.
  • the tooling platform 4 is used for loading and unloading the inverted steel shovel 5, and the tooling platform 4 is provided with a hole matching the outer peripheral surface of the inverted steel shovel 5. In use, the inverted steel shovel 5 is passed through the hole and placed in the tooling. On the platform 4, the tooling platform 4 is placed on the cutting block 81 and bound to the guide rail formed by the slot plate 9.
  • at least one slot plate 9 is provided with a positioning pin 10, and the corresponding tooling platform 4 defines a limiting slot.
  • the positioning pin 10 When the tooling platform 4 is pushed into the working position, the positioning pin 10 is stuck at one end of the limiting slot, and the unloading is cancelled. When the positioning pin 10 is stuck at the other end of the limiting slot, the tooling platform 4 will never leave the cutting plate 81, but the workpiece can be easily loaded and unloaded.
  • the processing method for separating the inverted steel shovel and the plaster mold by using the processing equipment is as follows:
  • the operator passes the cast inverted steel shovel 5 through the hole of the tooling platform 4 and places it on the tooling platform 4; pushes the tooling platform 5 along the guide rail into the open groove of the cutting block 81, so that the inverted steel shovel 5 is located Directly below the punch 3; the punch 3 is driven downward by the hydraulic cylinder 2, and the plaster mold 6 containing the workpiece 7 is punched out of the inverted steel shovel 5; the punch 3 is reset by the hydraulic cylinder 2, and the tooling platform 4 is removed. Take out the empty inverted steel shovel 5.
  • the application range of the precious metal involved includes materials such as gold, silver, platinum, palladium and the like.
  • the mechanical separation of the plaster mold and the inverted steel shovel is realized, the hardness of the precious metal jewelry during the demolding is ensured, and the precious metal jewelry is not easily mixed with impurities in the subsequent processing, and finally the precious metal jewelry is guaranteed. high purity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Adornments (AREA)

Abstract

一种纯度999.999‰贵金属饰品的加工设备及方法，适用于金、银、铂、钯等贵金属饰品的加工，其利用冲头的冲压力将石膏模（6）从倒模钢盅（5）中冲出来，使得石膏模（6）与倒模钢盅（5）实现机械方式分离。这种分离方式能够使倒模钢盅（5）与石膏模（6）分离时不需要使用冷水，保证了贵金属饰品在脱模时的硬度，进而保证贵金属饰品在后续加工过程中不容易混入杂质，并最终保证贵金属饰品的高纯度。

Description

纯度999.999‰贵金属饰品加工设备及方法
郑重声明
本发明要求了申请日为2016年11月24日、申请号为201611067618.5、名称为“纯度999.999‰贵金属饰品加工设备及方法”的中国发明专利申请的优先权。
技术领域
本发明属于贵金属加工技术领域，具体涉及一种用于将金、银、铂、钯等贵金属饰品铸件的倒模钢盅与石膏模分离的设备及方法。
背景技术
金、银、铂、钯等贵金属的纯度是决定饰品市场价值的决定性因素，纯度与加工工艺密切相关。对于一些形状复杂的饰品来说，其一般需要经过融金、倒模、抛光、执模、压光、车花等工序，因此，只有在如此多的工序中都减少或避免杂质混入，才能获得高纯度999.999‰的贵金属饰品。
倒模是贵金属加工的一道工序，是指通过离心浇注机将融金倒入石膏模中浇注出铸件的工序，中国发明专利申请CN102107259A公开了一种钵体饰品的浇注方法，其中提到，先制作胶模，再制作蜡模、蜡树和石膏模，然后将熔融的金属沿浇道注入石膏模中，冷却成型，将所述石膏模击碎，取出工件。
石膏模是在一个容器中成型的，该容器在本领域中称为钢盅，钢盅实际上是一个上下不封口的金属套，要想将工件取出，就必须首先将钢盅与石膏模分离。在公知技术中，是将浇注完成的钢盅放入冷水中，利用热胀冷缩的原理将包含工件的石膏模与钢盅进行分离的，由于钢盅的温度较高，遇冷水后会产生变形，从而缩短使用寿命。另外，钢盅遇到冷水后也会造成飞溅，容易造成烫伤，对操作人员也会构成一定的危险。
更为重要的是，金、银等贵金属在高温状态下，突遇冷水会变软，所以将刚刚浇注完成的温度高达700-800℃的钢盅和石膏模放入冷水中进行分离，会使贵金属饰品变软，从而在后续的加工过程中容易受到加工工具和环境中杂质 的影响，进而对贵金属饰品的纯度产生影响。
发明内容
本发明所要解决的技术问题是：提供一种纯度999.999‰贵金属饰品的加工方法，作为同一种构思，本发明所要解决的另一个技术问题是，提供一种能实施该方法的设备，上述设备和方法使得倒模钢盅与石膏模分离时不需要使用冷水，保证了贵金属饰品在脱模时的硬度，进而保证贵金属饰品在后续的加工过程中不容易混入杂质，并最终保证贵金属饰品的高纯度。
为解决上述第一个技术问题，本发明的技术方案是：贵金属饰品加工设备，包括：机架，所述机架包括底座，所述底座固接两个立柱，所述两个立柱的上端部连接有横梁；液压缸，所述液压缸安装于所述横梁上部，所述液压缸的活塞杆连接有冲头并向下伸出所述横梁；工装平台，所述工装平台开设有与所述饰品的倒模钢盅的外周面相匹配的孔；所述底座固接有砧板座，所述砧板座固接有砧板，所述砧板位于所述冲头的下方，所述砧板开设有敞口槽，所述砧板固接有用于约束所述工装平台沿所述敞口槽移动的导轨。
作为一种改进，所述导轨包括两块相对设置的槽板，至少一块所述槽板设置有定位销，所述工装平台开设有与所述定位销相适配的限位槽。
作为一种改进，所述砧板与所述立柱固接。
为解决上述第二个技术问题，本发明的技术方案是：一种贵金属饰品的加工方法，包括以下步骤：
a.将浇注完成的倒模钢盅穿过所述工装平台的孔并放置在所述工装平台上；
b.将所述工装平台沿所述导轨推入所述砧板座的敞口槽，使所述倒模钢盅位于所述冲头的正下方；
c.通过所述液压缸驱动所述冲头向下移动，将石膏模冲出所述倒模钢盅；
d.所述冲头复位，移出所述工装平台，取出所述倒模钢盅。
采用上述技术方案后，本发明的有益效果是：
本发明利用冲头的冲压力将石膏模从倒模钢盅中冲出来，使得石膏模与倒 模钢盅实现机械方式分离。这种分离方式能够使倒模钢盅与石膏模分离时不需要使用冷水，自然冷却后再从石膏模中取出饰品，高温熔融状态的饰品不会因突然遇到冷水降温而变软，保证了贵金属饰品在脱模时的硬度，进而保证贵金属饰品在后续加工过程中不容易混入杂质，并最终保证贵金属饰品的高纯度。
附图说明
图1是本发明贵金属饰品加工设备实施例的立体图(使用状态)；
图2是图1中工装平台与倒模钢盅装配结构的局部剖面视图；
图中，1-机架，11-立柱，12-横梁，13-底座，2-液压缸，3-冲头，4-工装平台，41-限位槽，5-倒模钢盅，6-石膏模，7-工件，8-砧板座，81-砧板，9-槽板，10-定位销。
具体实施方式
下面结合附图和实施例对本发明进一步说明。
在说明书的描述中，需要理解的是，“上端部”、“上部”、“下方”、“向下”等描述的方位或者位置关系是基于附图所示的方位或者位置关系，仅仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
结合图1以及图2所示，贵金属饰品加工设备的机架1的两个立柱11相对设置，横梁12固定连接于两个立柱11的上端部，为了保证加工设备的稳定性，在立柱11的下端固定连接有底座13。组成机架1的各构件可以通过焊接、螺栓连接等方式固定连接，当然，也可以通过其他常规的固定连接方式进行连接。
在横梁12的上部安装有液压缸2，在液压缸2的活塞杆端部连接有冲头3，冲头3向下伸出横梁12。冲头3的下方设置有砧板座8，砧板座8固定于底座13上，为了可靠与立柱11固接，砧板座8上端面固接有砧板81，在砧板81上开设有敞口槽，方便将倒模钢盅放置于冲头3的正下方(这在下面详细描述)。
砧板81的上表面固定设置有两个相对放置的槽板9，槽板9形成约束工装平台4移动的导轨。工装平台4用于装卸倒模钢盅5，工装平台4开设有与倒模钢盅5的外周面相匹配的孔，使用时，将倒模钢盅5穿过该孔并放置于工装 平台4上，工装平台4放置于砧板81上并约束于槽板9形成的导轨上。为了装卸工件方便，至少一块槽板9上设置定位销10，相应的工装平台4开设限位槽，将工装平台4推入工作位时，定位销10卡在限位槽的一端，退出卸料时，定位销10卡在限位槽的另一端，工装平台4始终不会脱离砧板81，但又能方便装卸工件。
利用此加工设备对倒模钢盅和石膏模进行分离的加工方法如下：
操作者将浇注完成的倒模钢盅5穿过工装平台4的孔并放置在工装平台4上；将工装平台5沿所述导轨推入砧板81的敞口槽，使倒模钢盅5位于冲头3的正下方；通过液压缸2驱动冲头3向下移动，将包含工件7的石膏模6冲出倒模钢盅5；通过液压缸2使冲头3复位，移出工装平台4，取出空的倒模钢盅5。
在本发明的实施例中，所涉及到的贵金属的应用范围包括金、银、铂、钯等材料。
工业实用性
采用本发明的结构，使得石膏模与倒模钢盅实现机械方式分离，保证了贵金属饰品在脱模时的硬度，进而保证贵金属饰品在后续加工过程中不容易混入杂质，并最终保证贵金属饰品的高纯度。

Claims (4)

  1. 一种贵金属饰品加工设备，其特征在于，包括：
    机架，所述机架包括底座，所述底座固接两个立柱，所述两个立柱的上端部连接有横梁；
    液压缸，所述液压缸安装于所述横梁上部，所述液压缸的活塞杆连接有冲头并向下伸出所述横梁；
    工装平台，所述工装平台开设有与所述饰品的倒模钢盅的外周面相匹配的孔；所述底座固接有砧板座，所述砧板座固接有砧板，所述砧板位于所述冲头的下方，所述砧板开设有敞口槽，所述砧板固接有用于约束所述工装平台沿所述敞口槽移动的导轨。
  2. 如权利要求1所述的贵金属饰品加工设备，其特征在于，所述导轨包括两块相对设置的槽板，至少一块所述槽板设置有定位销，所述工装平台开设有与所述定位销相适配的限位槽。
  3. 如权利要求1所述的贵金属饰品加工设备，其特征在于，所述砧板与所述立柱固接。
  4. 一种使用如权利要求1所述的贵金属饰品加工设备加工贵金属饰品的方法，其特征在于，包括以下步骤：
    a.将浇注完成的倒模钢盅穿过所述工装平台的孔并放置在所述工装平台上；
    b.将所述工装平台沿所述导轨推入所述砧板座的敞口槽，使所述倒模钢盅位于所述冲头的正下方；
    c.通过所述液压缸驱动所述冲头向下移动，将石膏模冲出所述倒模钢盅；
    d.所述冲头复位，移出所述工装平台，取出所述倒模钢盅。
PCT/CN2016/107705 2016-11-24 2016-11-29 纯度999.999‰贵金属饰品加工设备及方法 WO2018094748A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611067618.5A CN106418940B (zh) 2016-11-24 2016-11-24 纯度999.999‰贵金属饰品加工设备及方法
CN201611067618.5 2016-11-24

Publications (1)

Publication Number Publication Date
WO2018094748A1 true WO2018094748A1 (zh) 2018-05-31

Family

ID=58219471

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/107705 WO2018094748A1 (zh) 2016-11-24 2016-11-29 纯度999.999‰贵金属饰品加工设备及方法

Country Status (2)

Country Link
CN (1) CN106418940B (zh)
WO (1) WO2018094748A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113696300A (zh) * 2021-07-05 2021-11-26 鸿鑫三维科技(东莞)有限公司 一种利用3d打印的成型方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114619262B (zh) * 2022-03-10 2023-06-27 中国科学院重庆绿色智能技术研究院 一种饰品倒模生产线及控制系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202894258U (zh) * 2012-07-12 2013-04-24 武汉泛洲中越合金有限公司 离心铸造自动脱模机
CN204035451U (zh) * 2014-08-28 2014-12-24 周悠飙 一种模具的自动脱模装置
CN205058446U (zh) * 2015-08-14 2016-03-02 东莞市鹏博盛实业有限公司 柱状模压成型聚氨酯弹性体生产用辅助脱模治具
CN205183749U (zh) * 2015-11-18 2016-04-27 江西万泰铝业有限公司 一种铝锭脱模装置
CN205270572U (zh) * 2015-11-16 2016-06-01 重庆持恒模具有限公司 新型倒装复合模
US20160174671A1 (en) * 2014-12-19 2016-06-23 Alloy Holdings, LLC Production of metallic beads

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101332500A (zh) * 2007-06-28 2008-12-31 张克坚 一种铸件的负压浇铸方法
CN202087760U (zh) * 2011-05-26 2011-12-28 张家港市九鼎机械有限公司 封闭式锻造装置
CN102513505A (zh) * 2012-01-05 2012-06-27 浙江金牛工贸有限公司 一种高效、止损的贵金属中空立体摆件制造方法
CN206213436U (zh) * 2016-11-24 2017-06-06 山东梦金园珠宝首饰有限公司 纯度999.999‰贵金属饰品加工设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202894258U (zh) * 2012-07-12 2013-04-24 武汉泛洲中越合金有限公司 离心铸造自动脱模机
CN204035451U (zh) * 2014-08-28 2014-12-24 周悠飙 一种模具的自动脱模装置
US20160174671A1 (en) * 2014-12-19 2016-06-23 Alloy Holdings, LLC Production of metallic beads
CN205058446U (zh) * 2015-08-14 2016-03-02 东莞市鹏博盛实业有限公司 柱状模压成型聚氨酯弹性体生产用辅助脱模治具
CN205270572U (zh) * 2015-11-16 2016-06-01 重庆持恒模具有限公司 新型倒装复合模
CN205183749U (zh) * 2015-11-18 2016-04-27 江西万泰铝业有限公司 一种铝锭脱模装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113696300A (zh) * 2021-07-05 2021-11-26 鸿鑫三维科技(东莞)有限公司 一种利用3d打印的成型方法

Also Published As

Publication number Publication date
CN106418940A (zh) 2017-02-22
CN106418940B (zh) 2018-07-03

Similar Documents

Publication Publication Date Title
RU2014137317A (ru) Способ и устройство для изготовления металлической детали посредством использования приспособления для литья и формования
WO2018094748A1 (zh) 纯度999.999‰贵金属饰品加工设备及方法
CN206213436U (zh) 纯度999.999‰贵金属饰品加工设备
JP2007000910A (ja) プレス機械を用いた鋳造品の余肉除去方法及び同方法に用いるカッター
US10124383B2 (en) Extrusion method for extruded material
CN214720384U (zh) 一种铝合金锭浇铸装置
CN108655339B (zh) 一种精密铸造压蜡装置
JPS63286234A (ja) 型鍛造品のバリ抱抜き方法
DE3879119T2 (de) Verfahren zum giessen fluessigen metalles, insbesondere aluminiumlegierungen und magnesiumlegierungen und vorrichtung zu dessen durchfuehrung.
CN108838349A (zh) 一种铸造铝锭专用模具及脱模装置
JP5342858B2 (ja) スタンプ成形方法及びその装置
WO2010061786A1 (ja) 接合品及びその製造方法と、その製造装置
CN207971412U (zh) 一种金属压铸件去毛边装置
JP2013176789A (ja) ダイカスト成形品の堰折り装置と堰折り方法
JPH05237642A (ja) インゴット用吊り金物の自動脱着装置
JP2004243364A (ja) ダイカスト鋳物の製造方法及び製造装置
CN205834156U (zh) 一种用于立式压铸机的余料饼去除装置
CN215786163U (zh) 一种用于修整压铸板的修整模具
JP2009101412A (ja) 方案から鋳物製品と、方案の廃材を分離する堰折り方法と、その堰折り装置
CN213033490U (zh) 一种冲孔切断模具的脱料结构
CN111201097A (zh) 用于制造浇铸工件的方法
JPH0588749U (ja) 鋳造装置
JPS5847558A (ja) 低圧鋳造装置
CN104852533B (zh) 具有退模功能的大型铸铝转子加工装置
CN212384521U (zh) 开模方便的砂芯成型模具

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16922071

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16922071

Country of ref document: EP

Kind code of ref document: A1