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    Process for producing resin model and process of lost wax precision casting with the resin model
    1.
    发明申请
    Process for producing resin model and process of lost wax precision casting with the resin model 审中-公开
    用树脂模型生产树脂模型和失蜡精密铸造工艺

    公开(公告)号：US20070158870A1

    公开(公告)日：2007-07-12

    申请号：US10586637

    申请日：2004-01-23

    申请人： Hidekazu Suzuki ,  Akio Saito ,  Taro Kita

    发明人： Hidekazu Suzuki ,  Akio Saito ,  Taro Kita

    IPC分类号： B29C33/40

    CPC分类号： B29C41/04 ,  B22C7/02 ,  B22C9/04 ,  B22C9/10 ,  B29C41/22 ,  B29C67/241

    摘要： A process for producing a resin model for use in lost wax precious casting, comprising at least a hardened resin layer forming step of injecting two-pack reaction hardening type urethane resin solution (A) of 1 to 3 minutes of a working life, through a casting port (4) of a resin model forming mold (2) furnished with internal space (3) whose configuration is identical with that of product, into the internal space (3) in a volume amounting to 5 to 20% of the volume of the internal space (3), closing the casting port (4) and rotating the resin model forming mold (2); a resin model forming step of repeating the hardened resin layer forming step 3 to 6 times at intervals of 3 to 4 minutes so as to effect laminating of hardened resin layers (11), thereby obtaining resin model (12) having internal space (30) provided at a core region thereof; and a demolding the resin model (12) from the resin model forming mold (2).

    摘要翻译： 一种制造用于失蜡珍贵铸件的树脂模型的方法，至少包括通过以下步骤注入双组分反应硬化型聚氨酯树脂溶液（A）1至3分钟的硬化树脂层形成步骤： 将具有与产品相同构造的内部空间（3）的树脂模型成形模具（2）的铸造口（4）以体积的5〜20％的体积分配到内部空间（3）中 内部空间（3），关闭铸造口（4）并旋转树脂模制成型模具（2）; 树脂模型形成步骤，以3〜4分钟的间隔重复硬化树脂层形成工序3〜6次，以实现硬化树脂层（11）的层压，从而获得具有内部空间（30）的树脂模型（12） 设置在其核心区域; 以及从树脂模制成型模具（2）将树脂模型（12）脱模。

    Method for producing molds for lost wax precision casting
    2.
    发明申请
    Method for producing molds for lost wax precision casting 审中-公开
    失蜡精密铸造用模具的制造方法

    公开(公告)号：US20060144555A1

    公开(公告)日：2006-07-06

    申请号：US10546388

    申请日：2004-02-17

    申请人： Hidekazu Suzuki ,  Taro Kita ,  Akio Saito ,  Kazuki Kamata ,  Masato Kikuchihara

    发明人： Hidekazu Suzuki ,  Taro Kita ,  Akio Saito ,  Kazuki Kamata ,  Masato Kikuchihara

    IPC分类号： B22C9/04

    CPC分类号： B22C1/10 ,  B22C9/043 ,  B22C9/12

    摘要： The problems of the invention are to establish a modeling resin composition excellent in shape retention and dewaxing properties in the skillful system which comprises a urethane resin easy if thermal decomposition, a plasticizer, and a wax or waxy component and a dewaxing method suitable for models made form the composition and to enhance the strength of a mold in the low temperature range wherein dewaxing is carried out. According to the invention, a mold is produced by applying a primary layer consisting of plural fireproof coating layers among which epoxy silicone layers are laid and a backup layer consisting of plural thick coating layers on the surface of a resin model made by curing a two-component reaction curing type urethane liquid resin (F) which consists of a multifunctional polyol component (A), a multifunctional polyisocyanate component (B), a plasticizer (C), a wax or waxy component (D), and hollow resin balloons (E), preheating the obtained composite in a low temperature range within 60 to 120° C. during 2 to 8 hours to conduct initial dewaxing of removing 5 to 50% by weight of the resin model, raising the oven temperature gradually, and conducting the heating of the resulting composite in a medium temperature range of 150 to 500° C. during 2 to 5 hours and then the firing thereof in a high temperature range of 500 to 1000° C. during 2 to 5 hours.

    摘要翻译： 本发明的问题是在熟练的系统中建立一种具有优异的形状保持性和脱蜡性能的模塑树脂组合物，其包括如果热分解容易的聚氨酯树脂，增塑剂和蜡或蜡质组分，以及适用于型号的脱蜡方法 形成组合物并提高模具在进行脱蜡的低温范围内的强度。 根据本发明，通过将由多个耐火涂层组成的初级层（其中环氧硅树脂层铺设在其上）和由多个厚涂层组成的后备层施加在树脂模型的表面上， 由多功能多元醇成分（A），多官能多异氰酸酯成分（B），增塑剂（C），蜡或蜡质成分（D）和中空树脂气囊（E）组成的成分反应固化型聚氨酯液体树脂（F） ），将得到的复合体在60〜120℃的低温范围内预热2〜8小时，进行初始脱蜡，除去5〜50重量％的树脂模型，逐渐提高烘箱温度，进行加热 的所得复合材料在150-500℃的中等温度范围内进行2至5小时，然后在500至1000℃的高温范围内煅烧2至5小时。

    Method of Smoothing Surface and Process of Lost Wax Precious Casting with Resin Model Having Its Surface Smoothing by the Method
    5.
    发明申请
    Method of Smoothing Surface and Process of Lost Wax Precious Casting with Resin Model Having Its Surface Smoothing by the Method 审中-公开
    通过方法使其表面平滑的树脂模型的表面和失蜡铸造过程的平滑方法

    公开(公告)号：US20070204967A1

    公开(公告)日：2007-09-06

    申请号：US10586638

    申请日：2004-01-23

    申请人： Taro Kita ,  Kazuki Kamata ,  Minoru Matsumura ,  Akio Saito ,  Masato Kikuchihara

    发明人： Taro Kita ,  Kazuki Kamata ,  Minoru Matsumura ,  Akio Saito ,  Masato Kikuchihara

    IPC分类号： B22C3/00

    CPC分类号： B29C41/20 ,  B22C7/02 ,  B22C9/04 ,  B22C9/10 ,  B29C41/14 ,  B29C64/00 ,  B29K2995/0073 ,  Y02P10/292

    摘要： When a powder-sintered laminated resin model of powdery resin fabricated according to sintering/laminating shaping technique is applied to lost wax precision casting, casting products have rough finished surface causing a marked drop of commercial value. Thus, there is provided a method for smoothing the porous uneven surface of powder-sintered laminated resin model, comprising a resin impregnation step of dipping the powder-sintered laminated resin model (A) in a two-pack reaction hardening type urethane resin solution (B) with work time of 1 to 5 minutes and viscosity of 7 to 30 Pas and effecting pressure reduction so as to impregnate the surface of the resin model (A) with the two-pack reaction hardening type urethane resin solution (B) and a resin hardening step of updrawing the powder-sintered laminated resin model (A) having been impregnated with the two-pack reaction hardening type urethane resin solution (B) from the two-pack reaction hardening type urethane resin solution (B) and hardening the same.

    摘要翻译： 当将烧结/层压成形技术制造的粉末状树脂粉末烧结层压树脂模型应用于失蜡精密铸造时，铸造产品具有粗糙的成品表面，导致商业价值的明显下降。 因此，提供了一种平滑粉末烧结层叠树脂模型的多孔不均匀表面的方法，包括将粉末烧结层压树脂模型（A）浸渍在双组分反应硬化型聚氨酯树脂溶液中的树脂浸渍步骤（ B），工作时间为1〜5分钟，粘度为7〜30Pa·s，进行减压，以便使用双组分反应硬化型聚氨酯树脂溶液（B）浸渍树脂模型（A）的表面， 将从双组分反应硬化型聚氨酯树脂溶液（B）中浸渍了双组分反应硬化型聚氨酯树脂溶液（B）的粉末烧结层叠树脂模型（A）升温并硬化的树脂硬化工序 。

    Method for manufacturing hollow model
    6.
    发明申请
    Method for manufacturing hollow model 审中-公开
    空心模型制造方法

    公开(公告)号：US20070145633A1

    公开(公告)日：2007-06-28

    申请号：US10582387

    申请日：2003-12-12

    申请人： Takaharu Oi ,  Tomonobu Matsuoka ,  Taro Kita ,  Kazuki Kamata ,  Masato Kikuchihara

    发明人： Takaharu Oi ,  Tomonobu Matsuoka ,  Taro Kita ,  Kazuki Kamata ,  Masato Kikuchihara

    IPC分类号： B29C33/40

    CPC分类号： B29C33/52 ,  B22C7/02 ,  B22C7/023 ,  B22C9/04 ,  B29C33/48 ,  B29C39/34 ,  B29C39/36 ,  B29C67/246 ,  B29K2075/00 ,  B29L2022/00

    摘要： An object of the invention is to establish a mass-production type method for manufacturing in which a complicated shaped model with a hollow part can be molded integrally. The method for manufacturing a hollow model according to the present invention is a method for manufacturing a hollow model having a hollow part having at least one opening communicating with an outside, comprising: a core article forming process comprising a padding forming process for forming a padding made of a foamed material (B) and having a size acceptable to the hollow part and a film forming process for applying a film forming component (A) on the padding in order to form a film having an external form similar to said hollow part; a hollow model forming process that said core article formed in the core article forming process is set in a mold for forming an external form of the hollow model, two-component reaction rapid curing type urethane liquid resin (D) is injected into interstice between them to be cured, and then the hollow model having the core article inside thereof is formed by demolding; a padding removing process that organic solvent (E) is injected into the film comprising the film forming component (A) to dissolve and remove the padding comprising the foaming material (B); and a film removing process that the film from which the padding was removed is pulled up through the opening to remove.

    摘要翻译： 本发明的目的是建立一种用于制造的批量生产型方法，其中可以一体地模制具有中空部件的复杂成形模型。 根据本发明的制造中空模型的方法是一种具有中空部件的中空模型的制造方法，该中空模具具有至少一个与外部连通的开口，该中空模具包括：芯制品形成工艺，包括用于形成填料的填充成形工艺 由泡沫材料（B）制成并且具有中空部分可接受的尺寸和用于在填料上涂覆成膜组分（A）的成膜方法，以便形成具有类似于所述中空部分的外部形式的膜; 将在芯制品形成过程中形成的所述芯制品的中空模型形成工序设定在用于形成外部形式的中空模型的模具中，将双组分反应快速固化型氨基甲酸酯液体树脂（D）注入它们之间的空隙 固化，然后通过脱模形成其中具有核心制品的中空模型; 将有机溶剂（E）注入含有成膜组分（A）的膜中以去除包含发泡材料（B）的填料的填料去除方法; 以及将去除了填充物的膜从开口拉出去除膜的去膜工序。