Method for molding thermoplastic resin
    1.
    发明申请
    Method for molding thermoplastic resin 审中-公开
    热塑性树脂成型方法

    公开(公告)号:US20070013097A1

    公开(公告)日:2007-01-18

    申请号:US11170307

    申请日:2005-06-29

    摘要: In press molding or embossing a thermoplastic resin for producing a molded product excellent in transferability of microscopic surface asperities and having high quality with high productivity, a preform of a thermoplastic resin is heated to about the hardening temperature of the thermoplastic resin constituting the preform. The preform is embedded between an upper half and a lower half of a mold which are maintained at a temperature of about the hardening temperature of the thermoplastic resin, and then the mold is closed at a low pressure. Carbon dioxide is dissolved in a surface of the preform by charging carbon dioxide between a surface of the mold and the surface of the preform in order to reduce the viscosity of the preform surface. The surface of the mold is brought into contact with the preform having the reduced surface viscosity by increasing a pressing pressure. Then, carbon dioxide is discharged, and a molded product is extracted. Thus, the molded product excellent in transferability of microscopic surface asperities and having high quality can be produced with high productivity.

    摘要翻译: 在用于制造具有优异的微观表面粗糙度且具有高质量且高生产率的优异转印性的模塑制品的热塑性树脂中,将热塑性树脂的预成型件加热至构成预型件的热塑性树脂的硬化温度。 预成型件嵌入在保持在热塑性树脂的硬化温度的大约温度的模具的上半部和下半部之间,然后模具在低压下封闭。 通过在模具的表面和预成型体的表面之间装入二氧化碳,以便降低预制件表面的粘度,将二氧化碳溶解在预成型体的表面中。 通过增加压制压力使模具的表面与具有降低的表面粘度的预制件接触。 然后,排出二氧化碳,提取成型品。 因此,能够以高生产率制造显微镜表面粗糙度良好且质量好的成型体。

    METHOD FOR MOLDING THERMOPLASTIC RESIN
    2.
    发明申请
    METHOD FOR MOLDING THERMOPLASTIC RESIN 审中-公开
    热塑性树脂模塑方法

    公开(公告)号:US20100032871A1

    公开(公告)日:2010-02-11

    申请号:US12580468

    申请日:2009-10-16

    IPC分类号: B29C43/52

    摘要: In press molding or embossing a thermoplastic resin for producing a molded product excellent in transferability of microscopic surface asperities and having high quality with high productivity, a preform of a thermoplastic resin is heated to about the hardening temperature of the thermoplastic resin constituting the preform. The preform is embedded between an upper half and a lower half of a mold which are maintained at a temperature of about the hardening temperature of the thermoplastic resin, and then the mold is closed at a low pressure. Carbon dioxide is dissolved in a surface of the preform by charging carbon dioxide between a surface of the mold and the surface of the preform in order to reduce the viscosity of the preform surface. The surface of the mold is brought into contact with the preform having the reduced surface viscosity by increasing a pressing pressure. Then, carbon dioxide is discharged, and a molded product is extracted. Thus, the molded product excellent in transferability of microscopic surface asperities and having high quality can be produced with high productivity.

    摘要翻译: 在用于制造具有优异的微观表面粗糙度且具有高质量且高生产率的优异转印性的模塑制品的热塑性树脂中,将热塑性树脂的预成型件加热至构成预型件的热塑性树脂的硬化温度。 预成型件嵌入在保持在热塑性树脂的硬化温度的大约温度的模具的上半部和下半部之间,然后模具在低压下封闭。 通过在模具的表面和预成型体的表面之间装入二氧化碳,以便降低预制件表面的粘度,将二氧化碳溶解在预成型体的表面中。 通过增加压制压力使模具的表面与具有降低的表面粘度的预制件接触。 然后,排出二氧化碳,提取成型品。 因此,能够以高生产率制造显微镜表面粗糙度良好且质量好的成型体。

    METHOD FOR MOLDING THERMOPLASTIC RESIN
    3.
    发明申请
    METHOD FOR MOLDING THERMOPLASTIC RESIN 审中-公开
    热塑性树脂模塑方法

    公开(公告)号:US20090166926A1

    公开(公告)日:2009-07-02

    申请号:US12401346

    申请日:2009-03-10

    IPC分类号: B29C51/08

    摘要: In press molding or embossing a thermoplastic resin for producing a molded product excellent in transferability of microscopic surface asperities and having high quality with high productivity, a preform of a thermoplastic resin is heated to about the hardening temperature of the thermoplastic resin constituting the preform. The preform is embedded between an upper half and a lower half of a mold which are maintained at a temperature of about the hardening temperature of the thermoplastic resin, and then the mold is closed at a low pressure. Carbon dioxide is dissolved in a surface of the preform by charging carbon dioxide between a surface of the mold and the surface of the preform in order to reduce the viscosity of the preform surface. The surface of the mold is brought into contact with the preform having the reduced surface viscosity by increasing a pressing pressure. Then, carbon dioxide is discharged, and a molded product is extracted. Thus, the molded product excellent in transferability of microscopic surface asperities and having high quality can be produced with high productivity.

    摘要翻译: 在用于制造具有优异的微观表面粗糙度且具有高质量且高生产率的优异转印性的模塑制品的热塑性树脂中,将热塑性树脂的预成型件加热至构成预型件的热塑性树脂的硬化温度。 预成型件嵌入在保持在热塑性树脂的硬化温度的大约温度的模具的上半部和下半部之间,然后模具在低压下封闭。 通过在模具的表面和预成型体的表面之间装入二氧化碳,以便降低预制件表面的粘度,将二氧化碳溶解在预成型体的表面中。 通过增加压制压力使模具的表面与具有降低的表面粘度的预制件接触。 然后,排出二氧化碳,提取成型品。 因此,能够以高生产率制造显微镜表面粗糙度良好且质量好的成型体。

    Resin and gas injection molding method with subsequent cohering
    4.
    发明授权
    Resin and gas injection molding method with subsequent cohering 失效
    树脂和气体注射成型方法随后结合

    公开(公告)号:US06676867B2

    公开(公告)日:2004-01-13

    申请号:US09928282

    申请日:2001-08-10

    IPC分类号: B29C4534

    摘要: The present invention provides an injection molding method for providing a molded product with excellent transcription and an excellent gloss level. In this method, immediately after a resin is filled in a cavity (1), a carbon dioxide gas is injected or the skin layer is moved back to form a space (13) between the resin and the die surface (1), so that growth of the skin layer is hold down, and at the same time the carbon dioxide is dissolved in the skin layer for lowering the glass transition point of skin layer. Then the skin layer is again closely cohered to a surface of the die by increasing the resin pressure and cooling the molded product for solidifying behind the holding pressure. With this method, products with excellent transcription and with an excellent surface gloss level can be obtained.

    摘要翻译: 本发明提供了一种注射成型方法,用于提供具有优异转录和优异光泽度的模塑产品。 在这种方法中,在将树脂填充到空腔(1)之后立即注入二氧化碳气体或者使表皮层移回以在树脂和模具表面(1)之间形成空间(13),使得 皮肤层的生长被压下,并且同时二氧化碳溶解在皮肤层中以降低皮肤层的玻璃化转变点。 然后,通过增加树脂压力并冷却模制产品,使表层再次紧密地粘附到模具的表面,以在保持压力之后固化。 通过这种方法,可以获得具有优异转录并具有优异表面光泽度的产品。

    Method for injection molding of plastic products having excellent transcription properties
    5.
    发明授权
    Method for injection molding of plastic products having excellent transcription properties 失效
    具有优异转录特性的塑料制品的注射成型方法

    公开(公告)号:US06203731B1

    公开(公告)日:2001-03-20

    申请号:US09174262

    申请日:1998-10-16

    IPC分类号: B29C4573

    摘要: If the surface of metallic mold should not be highly transcribed to the surface of product in injection molding the plastic products, the transcription defects such as weld, shrinkage, etc. are caused to the surface of product. Further, if the resin should be exposed to the surface of high temperature metallic mold more than necessary during the molding, the filler and the like of glass and so forth are contained into the resin, and in this case, they are left over on the surface of metallic mold, resulting in the transcription defect. These problems can be solved by heating the surface temperature of metallic mold higher than the glass transfer temperature of resin if the resin is non-crystal and higher than the fusion point temperature if the resin crystal, with the temperature raising speed of more than 2° C. every second, maintaining this temperature during the resin charging, and by cooling at the lowering speed of more than 2° C. every second after the completion of charging. This temperature control shall be conducted with the feed back control while detecting the surface temperature of metallic mold by the temperature detection sensor mounted at the position close to the surface of metallic mold.

    摘要翻译: 如果金属模具的表面在注射成型塑料制品时不会高度转录到产品的表面,则产品的表面会引起诸如焊接,收缩等的转录缺陷。 此外,如果在模制过程中树脂应该暴露于高温金属模的表面,则玻璃等的填料等被包含在树脂中,并且在这种情况下, 金属模具的表面,导致转录缺陷。 如果树脂是非晶体的,加热金属模具的表面温度高于树脂的玻璃转移温度,如果树脂晶体高于熔点温度,则升温速度大于2°可以解决这些问题 C.每秒钟,在树脂充电期间保持该温度,并且在充电完成后每秒钟以大于2℃的降低速度冷却。 通过安装在靠近金属模具表面的位置的温度检测传感器检测金属模具的表面温度,进行反馈控制。

    Method of dyeing or reforming injection, blow or compression molding
    6.
    发明授权
    Method of dyeing or reforming injection, blow or compression molding 失效
    染色或重整注射,吹塑或压缩成型的方法

    公开(公告)号:US07550178B2

    公开(公告)日:2009-06-23

    申请号:US11113892

    申请日:2005-04-25

    IPC分类号: H05H1/24 B29C45/34

    摘要: A molding method providing a homogeneous surface without any patch by dyeing or reforming a resin surface in a die concurrently to molding, in injection-, blow-, or compression molding, after thermoplastic resin is filled in a die cavity. After blow-molding, or after compression molding, mixture gas of carbon dioxide gas and a dye, or mixture gas of carbon dioxide gas and a reformer is injected between the resin and the die for forming a clearance, and pressure of the mixture gas is kept at a constant level. The mixture gas is dissolved in a molded surface, and a pressure is applied to contact the molded surface to the cavity face. The mixture gas in the clearance is exhausted and cooled, and the molded product is taken out. A dye-permeated layer or a reformer-permeated layer is formed on a surface of the molded product.

    摘要翻译: 通过在模具腔中填充热塑性树脂之后,在模具中同时进行注模,吹塑或压缩成型中的树脂表面的染色或重整,从而提供均匀的表面而没有任何贴片的成型方法。 吹塑后或压缩成形后,将二氧化碳气体与染料的混合气体或二氧化碳气体与重整器的混合气体注入树脂与模具之间形成间隙,混合气体的压力为 保持在一个恒定的水平。 将混合气体溶解在模制表面中,并且施加压力以将模制表面接触到空腔面。 将间隙中的混合气体排出并冷却,并取出模制产品。 在模制品的表面上形成染料渗透层或重整器渗透层。

    Method of dyeing or reforming injection, blow or compression molding
    7.
    发明申请
    Method of dyeing or reforming injection, blow or compression molding 失效
    染色或重整注射,吹塑或压缩成型的方法

    公开(公告)号:US20060237876A1

    公开(公告)日:2006-10-26

    申请号:US11113892

    申请日:2005-04-25

    IPC分类号: B29B7/00

    摘要: To provide an injection-, blow-, or compression-molding method capable of providing homogeneous surface without any patch by dyeing or reforming a surface of resin surface in a die concurrently to molding for giving functionality to the molded body, in injection-, blow-, or compression molding, after thermoplastic resin is filled in a die cavity, after blow-molding, or after compression molding, mixture gas of carbon dioxide gas and a dye, or mixture gas of carbon dioxide gas and a reformer is injected between the resin and the die for forming a clearance, and pressure of the mixture gas is kept at a constant level. Then the mixture gas is dissolved in molded face for softening the molded face, and then a pressure is loaded to again contact the molded face to the cavity face tightly. Then the mixture gas in the clearance is exhausted and is cooled, and then the molded product is taken out. With the processes as described above, a dye-permeated layer or a reformer-permeated layer is formed on a surface of the molded product, and with this operation a surface of the molded product is dyed or reformed.

    摘要翻译: 提供注射,吹塑或压缩成型方法,其能够通过在模具中同时进行模塑树脂表面的表面染色或重整来提供均匀的表面而不会产生任何贴片,以模制成型体,在注射,吹塑 - 或压缩成型,将热塑性树脂填充到模腔中,吹塑后或压缩成型后,将二氧化碳气体和染料的混合气体,二氧化碳气体和重整器的混合气体注入 树脂和用于形成间隙的模具,并且混合气体的压力保持在恒定水平。 然后将混合气体溶解在模制面中以软化模制表面,然后加载压力以再次使模制面紧贴到模腔表面。 然后将间隙中的混合气体排出并冷却,然后取出模塑产品。 通过上述方法,在模制品的表面上形成染料渗透层或重整器渗透层,并且通过该操作,模制产品的表面被染色或重整。

    Method for controlling the forward movement speed of the screw in an injection molding machine
    8.
    发明授权
    Method for controlling the forward movement speed of the screw in an injection molding machine 失效
    用于控制注射成型机中螺杆的向前移动速度的方法

    公开(公告)号:US06835337B2

    公开(公告)日:2004-12-28

    申请号:US10133592

    申请日:2002-04-29

    IPC分类号: B29C4577

    CPC分类号: B29C45/77

    摘要: In the filling step, the forward movement speed of the screw is controlled in accordance with a predetermined speed pattern until the screw reaches a deceleration initiation point, LS4B. After the screw reaches LS4B, a deceleration step is started. In the deceleration step, the forward movement speed of the screw is controlled in a feedback manner such that the internal pressure of the mold reaches a predetermined target pressure. When the screw reaches a pressure holding initiation point, LS4 (or pressure holding initiation time, TR2), the pressure holding step is started. In the pressure holding step, the target pressure, which is a function of time, is changed with time in accordance with a program. When the operation goes to the pressure holding step, the set of PID coefficients within the feedback control loop are replaced by different set of PID coefficients.

    摘要翻译: 在填充步骤中,螺杆的向前移动速度根据预定的速度模式被控制,直到螺杆到达减速起始点LS4B。 螺丝到达LS4B后,开始减速步骤。 在减速步骤中,以反馈方式控制螺杆的向前移动速度,使得模具的内部压力达到预定的目标压力。 当螺杆达到压力保持起始点LS4(或压力保持起始时间TR2)时,开始压力保持步骤。 在压力保持步骤中,作为时间的函数的目标压力根据程序随时间而改变。 当操作进入压力保持步骤时,反馈控制回路内的PID系数集合被不同的PID系数组替换。