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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。