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    • 1. 发明专利
    • Adhesion evaluation method for die-cast mold release agent and adhesion evaluation device for the same
    • 用于模具脱模剂的胶粘剂评价方法及其粘合性评价装置
    • JP2014057972A
    • 2014-04-03
    • JP2012203130
    • 2012-09-14
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所Aisin Seiki Co Ltdアイシン精機株式会社
    • TACHIKAWA HIDEOITO HIROSHISUZUKI KAZUHIKOEZAKI YASUOYAMADA KENICHIYAMADA HIROYUKIKAJINO MASAKITAKEUCHI HISATOIWABORI HIROAKIIWATA YASUSHIKIN SEIKIHAYAFUJI TETSUNORIHISANAGA MASARU
    • B22D17/20B22C9/00B22C9/10
    • PROBLEM TO BE SOLVED: To provide an adhesion evaluation method for a die-cast mold release agent enabling appropriate evaluation of an adhering state of the mold release agent applied to a molding surface of a mold.SOLUTION: An adhesion evaluation method for a die-cast mold release agent includes: an irradiation step of irradiating a coated surface that is formed by spray coating of a coating fluid obtained by dissolving or dispersing the mold release agent and a fluorescent agent in water on a heated molding surface of a mold, with excitation light that corresponds to the fluorescent agent; and a measurement step of receiving fluorescence emitted from the fluorescent agent to measure fluorescence intensity. The measurement step is an intensity distribution measurement step of continuously measuring fluorescence intensity in a specific region of the coated surface to obtain intensity distribution. The adhesion evaluation method further includes an identification step of identifying an index value indexing an adhesion state of the mold release agent in the specific region on the basis of the intensity distribution. Using the index value enables appropriate evaluation of the adhesion state of the mold release agent and thus releasability during die casting even if coating unevenness of the mold release agent is large.
    • 要解决的问题:提供一种压铸脱模剂的粘合性评价方法,其能够适当地评价施加到模具的成型面上的脱模剂的附着状态。解决方案: 脱模剂包括:照射步骤,其通过将通过将脱模剂和荧光剂溶解或分散在水中而获得的涂布液喷雾涂布在加热的模具的表面上来照射涂布表面, 对应于荧光剂的光; 以及接收从荧光剂发出的荧光以测量荧光强度的测量步骤。 测量步骤是强度分布测量步骤,连续地测量涂覆表面的特定区域中的荧光强度,以获得强度分布。 粘合性评价方法还包括识别步骤,其基于强度分布来识别指定脱模剂在特定区域中的粘附状态的指标值。 使用该指标值能够适当地评价脱模剂的粘附状态,并因此即使在脱模剂的涂布不均匀性大的情况下也能够进行压铸时的剥离性。
    • 2. 发明专利
    • Die casting
    • DIE铸件
    • JP2009262190A
    • 2009-11-12
    • JP2008114364
    • 2008-04-24
    • Aisin Seiki Co LtdToyota Central R&D Labs Incアイシン精機株式会社株式会社豊田中央研究所
    • NISHINO NAOHISASUGIYAMA YOSHIOIWATA YASUSHIUEDA ISAMUSAIKAWA SEIJITEJIMA AKIHIROISHIKAWA TSUTOMUUKAI SHINSUKE
    • B22D17/22B22D21/04
    • PROBLEM TO BE SOLVED: To provide a high quality die casting having little defect with which in the die casting for gruel-state solidifying type solidification style, good condition of molten metal is supplied into the last solidifying part with a local pressurization and also, the crack and the deformation in the casting generated once in a while caused by the local pressurization, are prevented.
      SOLUTION: In the die casting, with which the thick part having the last solidifying part, and the thin part, are provided and gruel-state solidifying type molten metal solidified in the solid-liquid coexistent-state is pressurize-filled up with a plunger and cast into the die; after filling up the molten metal into the thick part, a flowing mark of the shape of a streak continued from the thin part to the thick part which forms when supplying the molten metal into the last solidifying part in the thick part through the thin part with the local pressurization, is generated on the cross-sectional surface. This die casting having the flowing mark of the shape of streak continued from the thin part to the thick part, is sufficiently performed to the molten metal supplying into a shrinkage cavity generating portion and also, the defects, such as the cracking, segregation, are little.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种具有很少缺陷的高质量压铸件,在用于稀释态凝固型固化模式的压铸中,将熔融金属的良好状态以局部加压供应到最后一个凝固部分, 此外,防止了由局部加压一次产生的铸件中的裂纹和变形。 解决方案:在具有最后固化部分的厚部分和薄部分的压铸中,并且固化固体状态的固化固化型熔融金属被加压填充 用柱塞浇注入模具; 在将熔融金属填充到厚的部分中之后,当通过薄部分将熔融金属供应到厚部分中的最后一个凝固部分时,从薄部分延伸到形成厚度部分的流动标记形成, 在横截面上产生局部加压。 具有从薄壁部到厚部的连续条纹的流延标记被充分地进行到供给到收缩腔产生部的熔融金属,并且,诸如裂纹,偏析等缺陷是 小。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Method and device of manufacturing casting, and casting
    • 制造铸造和铸造的方法和装置
    • JP2013193098A
    • 2013-09-30
    • JP2012061030
    • 2012-03-16
    • Toyota Motor Corpトヨタ自動車株式会社Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • SASAKI HISASHIFURUKAWA YUICHIAMANO NORIHIROYAOKAWA JUNIWATA YASUSHISUGIYAMA YOSHIO
    • B22D11/01B22D11/124
    • B22D11/041B22D11/006B22D11/124B22D11/145
    • PROBLEM TO BE SOLVED: To provide a method and device of manufacturing a casting, by which a casting having a complicated shape is easily manufactured and a degree of freedom of the manufactured casting is enhanced, and provide the casting.SOLUTION: In forming a casting by drawing molten metal M from a surface Ma of the molten metal in a molten metal tank 2 and solidifying the drawn molten metal M, an outer shape unit 4 formed of a plurality of outer shape defining members 4a for defining an outer shape of the casting is arranged in a region Rb between the surface Ma of the molten metal in the molten metal tank 2 and a solidifying region Rc of solidifying the molten metal M. The molten metal M drawn from the surface Ma of the molten metal is drawn through a region decided by the outer shape unit 4, and at least one of the plurality of outer shape defining members 4a is moved in accordance with drawing of the molten metal M to change a shape of the casting.
    • 要解决的问题:提供一种制造铸件的方法和装置,通过该方法和装置可以容易地制造具有复杂形状的铸件,并且提高了制造的铸件的自由度,并提供了铸件。解决方案:在形成铸件 通过将熔融金属M从熔融金属罐2中的熔融金属的表面Ma拉出并使拉伸的熔融金属M固化,形成由多个外形形状限定件4a形成的外形单元4,用于限定铸件的外形 布置在熔融金属槽2中的熔融金属的表面Ma和固化熔融金属M的凝固区Rc之间的区域Rb中。从熔融金属的表面Ma拉出的熔融金属M被拉伸通过区域 由外形单元4决定,并且多个外形限定构件4a中的至少一个根据熔融金属M的拉伸而移动以改变铸件的形状。
    • 10. 发明专利
    • Die casting method
    • DIE铸造方法
    • JP2011245521A
    • 2011-12-08
    • JP2010121917
    • 2010-05-27
    • Toyota Central R&D Labs IncToyota Motor Corpトヨタ自動車株式会社株式会社豊田中央研究所
    • FURUKAWA YUICHITAMURA SHIGEKIYOSHIDA SHINICHITOYODA TAKASHIIKUTA HIROYUKIIWATA YASUSHIYAOKAWA JUNSUGIYAMA YOSHIO
    • B22D17/22B22C9/06
    • PROBLEM TO BE SOLVED: To provide a die casting method for suppressing cooling of a molten metal when filling the molten metal into a cavity and for promoting the cooling of the molten metal when pressurizing the molten metal.SOLUTION: The die casting method includes a preparation step, a filling step, and a pressure holding step. In the preparation step, a cavity surface 16a is classified into a range 20 necessary for a sink countermeasure or a range 22 unnecessary for the sink countermeasure, and a die casting mold 10 is prepared for demarcating the cavity surface 20a of the range 20 necessary for the sink countermeasure by a material having thermal conductivity not less than that of a material for demarcating the cavity surface 22a of the range 22 unnecessary for the sink countermeasure. A minimum value of a heat transfer coefficient between the die casting mold 10 and the molten metal in the pressure holding step is made to be larger than a maximum value of a heat transfer coefficient between the die casting mold 10 and the molten metal in the filling step, and a minimum value of a heat transfer coefficient between the die casting mold 10 in the range 20 necessary for the sink countermeasure and the molten metal in the pressure holding step is made to be larger than a maximum value of a heat transfer coefficient between the die casting mold 10 in the range 22 unnecessary for the sink countermeasure and the molten metal.
    • 要解决的问题:提供一种压铸方法,用于在将熔融金属填充到空腔中时抑制熔融金属的冷却,并且在对熔融金属加压时促进熔融金属的冷却。 解决方案:压铸方法包括制备步骤,填充步骤和压力保持步骤。 在准备步骤中,空腔表面16a被分类为水槽对策所必需的范围20或对于水槽对策不需要的范围22,并且准备压铸模具10用于将空腔表面20a划分为为了 通过不低于用于对接槽对策不需要的范围22的腔表面22a的材料的导热率的材料,该接收器对抗措施。 将压铸模具10和压力保持步骤中的熔融金属之间的传热系数的最小值设定为大于压铸模具10与填充物中的熔融金属之间的传热系数的最大值 使压模对应要求的范围20内的压铸模10和压力保持步骤中的熔融金属之间的传热系数的最小值大于在压力保持步骤之间的传热系数的最大值 不需要水槽对策的熔模铸模10和熔融金属。 版权所有(C)2012,JPO&INPIT