公开(公告)号：US20030041998A1

公开(公告)日：2003-03-06

申请号：US10229871

申请日：2002-08-28

发明人： Hideyuki Suzuki ,  Koichiro Sato ,  Ryuichi Onoda

IPC分类号： B22C003/00 ,  B22D017/10 ,  B22D023/00 ,  B22D017/32

CPC分类号： B22D17/32 ,  B22D17/007 ,  B22D17/2023 ,  B22D17/2281 ,  Y10S164/90

摘要： According to the present invention, between the mold-clamping process S1 in which the mold 1 is closed and the injection-pressure increase (solidifying) process S3, the gate-melting process for heating the hot runner 21 to melt the plug (metallic material) of the gate 27, the mold-lubricant coating process for spraying the lubricant onto the wall surface of the cavity 10, and the material-metering process are simultaneously carried out in parallel to each other. Thus, the molding cycle time can be reduced to a great extent.

摘要翻译： 根据本发明，在模具1关闭的合模过程S1与注射压力增加（凝固）处理S3之间）中，加热热流道21以熔化塞子（金属材料 ），用于将润滑剂喷射到空腔10的壁表面上的模具润滑剂涂覆工艺以及材料计量过程彼此平行地同时进行。 因此，可以在很大程度上降低成型周期时间。

公开(公告)号：US20030041993A1

公开(公告)日：2003-03-06

申请号：US10169865

申请日：2002-07-10

发明人： Yukio Kuramasu ,  Osamu Yoshida ,  Yoshihiro Tajima ,  Takaaki Ikari

IPC分类号： B22D017/10

CPC分类号： B22D17/14 ,  B22D2/00 ,  B22D17/32

摘要： The present invention provides a die-casting method comprising the steps of evacuating a cavity 30 defined by dies of a die-casting machine to provide therein a vacuum of 100 millibar or less during a first period, injecting a reactive gas from a sleeve of the die-casting machine into the cavity 30 during a second period which has a partial overlap period with the first period and follows the overlap period, so as to increase the inner pressure of the cavity to atmospheric pressure or more, pouring a molten aluminum alloy M into the sleeve 40 while keeping the injection of the reactive gas, and subsequently moving a plunger 42 in the sleeve forward to forcibly inject the molten aluminum alloy from the sleeve into the cavity 30 while re-evacuating the cavity 30. The evacuation, reactive-gas injection and re-evacuation operations can be performed with respective overlap periods therebetween. During the operation of supplying the molten aluminum alloy, air and water are effectively discharged to outside, and the reactive gas in an unreacted state is discharged to outside without being incorporated into the molten aluminum alloy. Thus, the present invention provides a die-cast product having a significantly reduced volume of incorporated gases and allows the die-cast product to be applied to functional members.

摘要翻译： 本发明提供了一种压铸方法，包括以下步骤：抽空由压铸机的模具限定的空腔30，以在其中在第一时段内提供100毫巴或更小的真空度，从反应气体的套筒 压铸机在第二时段内进入空腔30，该第二时段具有与第一周期的部分重叠周期并且跟随重叠周期，以便将空腔的内部压力增加到大气压力或更大，将熔融铝合金M 在保持喷射反应气体的同时进入套管40，随后将套筒中的柱塞42向前移动，以将熔融的铝合金从套筒强制地注入空腔30中，同时对空腔30进行排空。 气体注入和再排气操作可以以它们之间的相应重叠周期进行。 在供应熔融铝合金的操作期间，空气和水被有效地排放到外部，并且未反应状态的反应气体被排放到外部而不加入到熔融铝合金中。 因此，本发明提供了具有显着降低的并入气体体积的压铸产品，并且允许将压铸产品应用于功能部件。

公开(公告)号：US20030006020A1

公开(公告)日：2003-01-09

申请号：US10238199

申请日：2002-09-10

发明人： Kevin L. Richard ,  Richard I. Neill JR. ,  Christopher S. Rice ,  Shinya Myojin ,  Patricio F. Mendez ,  Timothy B. Gage ,  John F. O'Daniels ,  Charles E. Barron

IPC分类号： B22D017/10

CPC分类号： B22D1/00 ,  B22D17/007 ,  B22D17/06 ,  B22D17/10 ,  B22D17/30 ,  Y10S164/90

摘要： A die casting system includes a vessel defining a reservoir with a controlled heater and an agitator for maintaining the bath of semi-solid metal in a homogeneous isothermal state, a transfer system capable of transferring a known quantity of metal in its semi-solid state to a mold cavity in a die casting machine, the transfer system including a heated suction tube, a vacuum source for vacuum ladling semi-solid metal from the bath to a die, and a plunger tip providing a path for free air flow to allow evacuation of the suction tube during casting and a metal replacement system for replacing the known quantity of transferred metal with a similar amount of liquid metal so that a stable homogeneous isothermal bath of semi-solid metal is controllably maintained to be available for die casting operations.

公开(公告)号：US20020170696A1

公开(公告)日：2002-11-21

申请号：US09861250

申请日：2001-05-18

发明人： Ron Akers ,  Ralph E. Vining ,  D. Matthew Walukas ,  Raymond F. Decker ,  Chris Pedder

IPC分类号： B22D017/10

CPC分类号： B22D17/2038 ,  B22D17/007 ,  B22D35/06 ,  Y10S164/90

摘要： An apparatus for molding a metal material. The apparatus includes a vessel with portions defining a passageway through the vessel. An inlet is located toward one end and a member or agitation means is located within the passageway. A plurality of heaters are located a length of the vessel. The first of the heaters is located immediately downstream of the inlet and is a low frequency induction coil heater whereby the temperature gradient through the vessel's sidewall is minimized.

摘要翻译： 一种用于模制金属材料的装置。 该装置包括具有限定通过该容器的通道的部分的容器。 入口朝向一端定位，并且构件或搅拌装置位于通道内。 多个加热器位于容器的长度上。 加热器中的第一个位于入口的紧邻的下游，并且是低频感应线圈加热器，由此通过容器侧壁的温度梯度被最小化。

公开(公告)号：US20020124988A1

公开(公告)日：2002-09-12

申请号：US10094834

申请日：2002-03-07

申请人： NISSEI PLASTIC INDUSTRIAL CO., LTD.

发明人： Kiyoto Takizawa ,  Toshiyasu Koda ,  Yuji Hayashi ,  Mamoru Miyagawa

IPC分类号： B22D017/10

CPC分类号： B22D17/007 ,  B22D17/2015 ,  B22D17/30 ,  Y10S164/90

摘要： The purpose of this invention is to prevent sludge from flowing into a measuring chamber by partitioning the inside of a melt cylinder into a melt stirring part and a molten metal flow passage part, and to stabilize supply of the metallic material and measurement of the molten metal. A nozzle member 14 of which the inside of the rear part is formed into a measuring chamber 13 is attached to the tip of a melt cylinder 11. The end face of the opening periphery of the measuring chamber 13 of the nozzle member 14 faced to the inside of the melt cylinder is projectingly formed into a ring-shaped bearing 14b. A hollow stirring shaft 16 provided with stirring blades 15 on the outer periphery is supported by the bearing 14b and a bearing member 21 in the rear end of the melt cylinder so as to be freely rotatable with a suction port 25 bored in the side wall of the tip part. An injection rod is put into the stirring shaft and a plunger 17 with a ring valve on the tip is fitted into the measuring chamber 13 so as to be freely movable forwards and backwards. The inside of the melt cylinder is partitioned into a melt stirring part A and a molten metal reservoir B by the stirring shaft 16. The meting cylinder 11 is installed slantwise on the machine base with the nozzle member side downward to use the tip part as a sludge receiver 27.

摘要翻译： 本发明的目的是通过将熔体筒体的内部分隔成熔融搅拌部分和熔融金属流动通道部分来防止污泥流入测量室，并且稳定金属材料的供应和熔融金属的测量 。 将后部的内部形成测量室13的喷嘴构件14安装在熔融筒11的前端。喷嘴构件14的测量室13的开口周边的端面朝向 熔体缸内部突出地形成为环形轴承14b。 在外周设置有搅拌叶片15的中空搅拌轴16由轴承14b和熔体缸后端的轴承部件21支撑，以便能够随着在侧壁上钻出的吸入口25自由旋转 尖端部分。 将注射杆放入搅拌轴中，将具有尖端的环形阀的柱塞17装配到测量室13中，以便能够向前和向后自由移动。 熔体筒体的内部通过搅拌轴16被分割成熔融搅拌部分A和熔融金属储存器B.转杯11倾斜地安装在机器底座上，喷嘴部件侧向下，以使用尖端部分作为 污泥接收器27。

公开(公告)号：US20020117288A1

公开(公告)日：2002-08-29

申请号：US10108447

申请日：2002-03-29

申请人： Minebea Co., Ltd.

发明人： Kazufusa Furukoshi ,  Takeaki Fuse ,  Naoto Miura

IPC分类号： B22D017/10

CPC分类号： B22D17/24

摘要： A swing arm for actuating a magnetic head having a multiplicity of extremely thin blade of 0.9 mm in thickness that has been difficult to produce in a conventional casting may be produced by die-casting. Fixed cores and movable cores are disposed in a casting space provided in a parting line between a fixed core and a movable core. A body casting space and a blade casting space are set. A cross-sectional area of an overflow gate provided at an end of the blade casting space is greater than a cross-sectional area of a runner gate for connecting a runner and the body casting space. At the same time, a weight of the overflow material overflowed from the overflow gate to the molten material storage portion is set to be greater than a weight of a product portion filled in the casting space. The flow of the molten material to the blade casting space that is narrow is made smooth.

摘要翻译： 可以通过压铸来制造具有在常规铸造中难以制造的厚度为0.9mm的多个极薄刀片的磁头的摆臂。 固定芯和可动芯设置在设置在固定芯和可动芯之间的分型线中的铸造空间中。 设置身体铸造空间和刀片铸造空间。 设置在叶片铸造空间的端部处的溢流门的横截面面积大于用于连接流道和主体铸造空间的流道浇口的横截面面积。 同时，从溢流门溢出到熔融材料储存部分的溢流材料的重量被设定为大于填充在铸造空间中的产品部分的重量。 使熔融材料流向狭窄的叶片铸造空间的流动变得平滑。

公开(公告)号：US20020062941A1

公开(公告)日：2002-05-30

申请号：US09727088

申请日：2000-11-30

发明人： John G. Cowie ,  Dale T. Peters ,  Edwin Brush ,  Jack Daugherty ,  Kenneth P. Young ,  Stephen Midson

IPC分类号： B22D017/10 ,  B22D019/00

CPC分类号： B22D17/24 ,  B22D19/0054

摘要： The present invention provides a method and apparatus for die-casting copper and other metals that are cost-effective and practical for production use in die-casting, for example, copper motor rotors. In motor rotors, the incorporation of die-cast copper for conductor bars and end rings in place of aluminum is known to result in improvements in motor energy efficiency. Previous attempts to die-cast copper motor rotors in a commercially feasible manner have failed because copper's high melting point places too great a stress on the die material, resulting in cracking and fracturing of the molds. High temperature die materials such as nickel, tungsten and molybdenum based alloys with a high melting point are employed, and a die casting apparatus is provided to pre-heat the molds prior to injection of the molten copper. Pre-heating and high operating temperatures provide extended die life. By preheating, the die materials experience reduced cyclic stresses associated with thermal expansion, because the thermal shock that results from the difference in temperature between the molten copper and the surface of the mold is reduced, ideally below the yield strength of the mold material. Extended die life provides the opportunity for economically viable copper motor rotor die-casting.

摘要翻译： 本发明提供了一种用于压铸铜和其它金属的方法和装置，其在压铸中用于生产中具有成本效益和实用性，例如铜电机转子。 在电机转子中，已知用于导体棒和端环代替铝的压铸铜的结合导致电动机能量效率的改善。 以前以商业可行的方式压铸铜电机转子的尝试失败了，因为铜的高熔点对模具材料施加过大的应力，导致模具的开裂和断裂。 使用高温模具材料，例如具有高熔点的镍，钨和钼基合金，并且提供压铸装置以在注入熔融铜之前对模具进行预加热。 预热和高工作温度提供延长的模具寿命。 通过预热，由于由熔融铜和模具表面之间的温度差导致的热冲击降低，理想地低于模具材料的屈服强度，因此模具材料经历与热膨胀相关的减小的循环应力。 延长的模具寿命为经济可行的铜电机转子压铸提供了机会。

公开(公告)号：US20020026995A1

公开(公告)日：2002-03-07

申请号：US09949952

申请日：2001-09-12

发明人： Kaname Kono

IPC分类号： B22D017/10

CPC分类号： B22D17/007 ,  B22D17/30 ,  B29C45/53 ,  Y10S164/90

摘要： A metal injection molding apparatus is provided with features which reduce the amount of metal which enters the drive mechanism of the apparatus. The apparatus contains a piston having the head and the shaft, the shaft having a diameter smaller than the diameter of the head. At least one piston ring circumscribes the piston shaft. The apparatus contains an injection chamber having an accumulation portion and a shaft housing portion. The shaft housing portion has openings in the sidewalls and a polygonal internal cross section. The accumulation portion of the injection chamber is maintained at a higher temperature than the shaft housing portion.

摘要翻译： 金属注射成型设备具有减少进入设备的驱动机构的金属量的特征。 该装置包括具有头部和轴的活塞，该轴具有小于头部直径的直径。 至少有一个活塞环围绕活塞轴。 该装置包括具有堆积部分和轴容纳部分的注射室。 轴壳体部分在侧壁中具有开口并具有多边形内部横截面。 注射室的积聚部分保持在比轴容纳部分更高的温度。

公开(公告)号：US20020007930A1

公开(公告)日：2002-01-24

申请号：US09928752

申请日：2001-08-14

发明人： Tatsuo Yoshida

IPC分类号： B22D017/10

CPC分类号： B22D17/22 ,  Y10S425/058

摘要： The concave design forming unit with the desired form is formed on the surface of the molded component easily in the case of injection molding by using the low melting point metal material. According to this invention, in the injection molding method of low melting point metal material for injecting the molten metal formed of low melting point metal material into the injection molding cavity of the predetermined shape provided in the metal mold, and after mold curing said molten metal, taking out the molded goods from the infection molding cavity; the injection molding cavity will be formed inside by the first metal mold unit and the second metal mold unit contacted and the metal mold having the trapezoidal concave design forming unit with the predetermined height formed on the metal mold inside surface of the first metal mold unit or the second metal mold unit forming said injection molding cavity will be heated to the prescribed metal mold temperature, and the molten metal heated to the predetermined molten temperature will be injected into the injection molding cavity of said heated metal mold at the predetermined injection rate, and after said molten metal injected is being chilled and solidified, separated into the first metal mold unit and the second metal mold unit and the molded component will be taken out from the injection molding cavity.

摘要翻译： 通过使用低熔点金属材料，在注射成型的情况下，容易地在模制部件的表面上形成具有所需形状的凹形设计形成单元。 根据本发明，在用于将由低熔点金属材料形成的熔融金属注入到设置在金属模具中的预定形状的注塑腔中的低熔点金属材料的注射成型方法中，并且在模具固化之后，所述熔融金属 从感染模腔中取出模制品; 注射成型腔将由第一金属模具单元内部形成，第二金属模具单元接触，金属模具具有预定高度的梯形凹形设计形成单元，形成在第一金属模具单元的金属模具内表面上，或 形成所述注射成型腔的第二金属模具单元将被加热到规定的金属模具温度，并且加热到预定熔融温度的熔融金属将以预定的注射速率注入到所述加热的金属模具的注射模腔中，以及 在注入的熔融金属被冷却和固化之后，分离成第一金属模具单元并且第二金属模具单元和模制部件将从注射模腔中取出。

公开(公告)号：US20010052405A1

公开(公告)日：2001-12-20

申请号：US09845049

申请日：2001-04-27

发明人： Kiyoto Takizawa ,  Toshiyasu Koda ,  Yuji Hayashi ,  Mamoru Miyagawa

IPC分类号： B22D017/10

CPC分类号： B22D17/007 ,  Y10S164/90

摘要： The invention has an object to permit to mold metal molds having a thixothropic structure by melting, agitating and weighing, injection molten metal in a melting vessel by combining separately functioning agitation means and injection means. The invention consists in supply granular metal material in a fusion vessel 11 having a weighing chamber 17 by a cylinder of required length communicating with a nozzle port at the extremity section, including rotatively an agitation means 21 inside, and wherein an injection means 22 whose extremity section is formed into an injection plunger 30 is inserted advanceably and retractably into the center section of this agitation means 21. The metal material is heat melted by an external heat. The molten metal material is accumulated in the fusion vessel by homogenizing by the agitation means 21. A part of molten metal material is injection charged into a die at a temperature equal or superior to the solid phase line temperature and equal or inferior to the liquid phase line temperature, and molded into a metal mold having a thixothropic structure.

摘要翻译： 本发明的目的是通过熔融，搅拌和称重来模制具有触变结构的金属模具，通过组合单独功能的搅拌装置和注射装置在熔融容器中注入熔融金属。 本发明包括在熔融容器11中供应颗粒状金属材料，其具有通过在末端部分处的喷嘴端口连通所需长度的圆筒的称重室17，其包括内部的可旋转地搅拌装置21，并且其中末端的喷射装置22 形成为注射柱塞30的部分被可推进地伸缩地插入到该搅拌装置21的中心部分中。金属材料被外部热量加热熔化。 熔融金属材料通过搅拌装置21均质化而在熔融容器中积聚。将熔融金属材料的一部分在等于或等于固相线温度的温度下注入模具中，等于或低于液相 并且模制成具有触变结构的金属模具。