Method for modeling a high speed extrusion die
    1.
    发明授权
    Method for modeling a high speed extrusion die 失效
    高速挤出模头成型方法

    公开(公告)号:US5756016A

    公开(公告)日:1998-05-26

    申请号:US647579

    申请日:1996-05-13

    CPC classification number: B21C25/02 B21C25/00

    Abstract: An extrusion die (10) includes a die body (30) having an upstream face (32) and a downstream face (34) with an extrusion profile (22) passing through the body (30) from the upstream face (32) to the downstream face (34). The walls of the extrusion profile (22) being the bearing (46) of the die (10). A pocket (40) having tapered sidewalls (70) is formed in the upstream face (32) of the die (10) and surrounds the extrusion profile (22). The configuration of the pocket (40) improves the material flow through the die (10). The configuration of the pocket (40) depends on the configuration of the extrusion profile (22). The width of the pocket (40) is small at the fast areas of the extrusion profile (22) while being large at the slow areas of the extrusion profile (22). The pocket (40) alters the entry angle of material as it enters the die (10) thus reducing friction in the die (10) and allowing increased extrusion speeds. In conjunction with the pocket (40), the die (10) has a continuous bearing (46) having a length depending on the configuration of the extrusion profile (22).

    Abstract translation: 挤压模具(10)包括具有上游面(32)和下游面(34)的模具本体(30),其具有从上游面(32)穿过主体(30)的挤压型材(22)到 下游面(34)。 挤压型材(22)的壁是模具(10)的轴承(46)。 在模具(10)的上游面(32)中形成具有锥形侧壁(70)的袋(40),并且包围挤压型材(22)。 袋(40)的构造改善了通过管芯(10)的材料流动。 袋(40)的构型取决于挤压型材(22)的构型。 在挤压型材(22)的快速区域处,袋(40)的宽度较小,同时在挤出型材(22)的缓慢区域处较大。 口袋(40)在其进入模具(10)时改变材料的入射角度,从而减小模具(10)中的摩擦并允许增加的挤出速度。 与凹穴(40)一起,模具(10)具有连续的轴承(46),其长度取决于挤出型材(22)的构型。

    Extrusion die
    2.
    再颁专利
    Extrusion die 失效
    挤出模具

    公开(公告)号:USRE38534E1

    公开(公告)日:2004-06-15

    申请号:US10010151

    申请日:2001-11-02

    CPC classification number: B21C25/02 B21C25/00

    Abstract: An extrusion die (10) includes a die body (30) having an upstream face (32) and a downstream face (34) with an extrusion profile (22) passing through the body (30) from the upstream face (32) to the downstream face (34). The walls of the extrusion profile (22) being the bearing (46) of the die (10). A pocket (40) having tapered sidewalls (70) is formed in the upstream face (32) of the die (10) and surrounds the extrusion profile (22). The configuration of the pocket (40) improves the material flow through the die (10). The configuration of the pocket (40) depends on the configuration of the extrusion profile (22). The width of the pocket (40) is small at the fast areas of the extrusion profile (22) while being large at the slow areas of the extrusion profile (22). The pocket (40) alters the entry angle of material as it enters the die (10) thus reducing friction in the die (10) and allowing increased extrusion speeds. In conjunction with the pocket (40), the die (10) has a continuous bearing (46) having the length depending on the configuration of the extrusion profile (22).

    Method for designing an extrusion process and die
    3.
    发明授权
    Method for designing an extrusion process and die 失效
    设计挤出工艺和模具的方法

    公开(公告)号:US6153131A

    公开(公告)日:2000-11-28

    申请号:US468509

    申请日:1999-12-21

    Abstract: A method for designing an extrusion process and extrusion die includes the steps of first determining the optimal extrusion process parameters and then designing an extrusion die based on those optimal parameters. The optimal extrusion process parameters are determined by identifying the geometric characteristics of the selected extrusion profile, determining the physical characteristics of the material to be extruded, determining the physical characteristics for the extrusion processor, and detrmining the extrusion process limitation chart for the selected extrusion profile, selected extrusion material, and the selected extrusion processor. After the extrusion process limitation chart has been determined, a preferred extrusion process window is determined for the extrusion process limitation chart. A series of simulations are then run to determine if the selected temperatures and speeds result in an entire extrusion process falling within the extrusion process window. If the selected criteria result in a process that extends beyond the window, new selections are made and the simulation is repeated until the process falls entirely within the extrusion process window. The criteria are then used in a feed forward set up to run the extrusion process.

    Abstract translation: 挤出工艺和挤出模具的设计方法包括以下步骤:首先确定最佳挤出工艺参数,然后基于这些最佳参数设计挤压模具。 通过确定所选择的挤出型材的几何特性,确定待挤出材料的物理特性,确定挤出加工机的物理特性,以及确定所选挤压型材的挤出过程限制图来确定最佳挤出工艺参数 ,所选择的挤出材料和所选择的挤出处理器。 在挤出过程限制图已经确定之后,针对挤出过程限制图确定优选的挤出工艺窗口。 然后运行一系列模拟以确定所选择的温度和速度是否导致整个挤出过程落在挤出过程窗口内。 如果所选择的标准导致超出窗口的过程,则进行新的选择,并重复模拟,直到该过程完全落在挤出过程窗口中。 然后将标准用于进行前馈设置以运行挤出过程。

    Method for designing an extrusion process and die
    4.
    发明授权
    Method for designing an extrusion process and die 失效
    设计挤出工艺和模具的方法

    公开(公告)号:US6004489A

    公开(公告)日:1999-12-21

    申请号:US961462

    申请日:1997-10-30

    CPC classification number: B21C25/02 B21C25/00

    Abstract: A method for designing an extrusion process and extrusion die includes the steps of first determining the optimal extrusion process parameters and then designing an extrusion die based on those optimal parameters.The optimal extrusion process parameters are determined by determining the geometric characteristics of the selected extrusion profile, determining the physical characteristics of the material to be extruded, determining the physical characteristics for the extrusion processor, and determining the extrusion process limitation chart for the selected extrusion profile, selected extrusion material, and the selected extrusion processor. After the extrusion process limitation chart has been determined, a preferred extrusion process window is determined for the extrusion process limitation chart. A series of simulations are then run to determine if selected temperatures and speeds result in an entire extrusion process falling within the extrusion process window. If the selected criteria result in a process that extends beyond the window, new selections are made and the simulation is repeated until the process falls entirely within the extrusion process window. The criteria are then used in a feed forward set up to run the extrusion process.

    Abstract translation: 挤出工艺和挤出模具的设计方法包括以下步骤:首先确定最佳挤出工艺参数,然后基于这些最佳参数设计挤压模具。 通过确定所选择的挤出型材的几何特性,确定要挤出的材料的物理特性,确定挤出加工机的物理特性以及确定所选挤出型材的挤出过程限制图来确定最佳挤出工艺参数 ,所选择的挤出材料和所选择的挤出处理器。 在挤出过程限制图已经确定之后,针对挤出过程限制图确定优选的挤出工艺窗口。 然后运行一系列模拟以确定所选择的温度和速度是否导致整个挤出过程落入挤出过程窗口内。 如果所选择的标准导致超出窗口的过程,则进行新的选择,并重复模拟,直到该过程完全落在挤出过程窗口中。 然后将标准用于进行前馈设置以运行挤出过程。

    Extrusion die
    5.
    发明授权
    Extrusion die 失效
    挤出模具

    公开(公告)号:US5974850A

    公开(公告)日:1999-11-02

    申请号:US18352

    申请日:1998-02-04

    CPC classification number: B21C25/02 B21C25/00

    Abstract: An extrusion die (10) includes a die body (30) having an upstream face (32) and a downstream face (34) with an extrusion profile (22) passing through the body (30) from the upstream face (32) to the downstream face (34). The walls of the extrusion profile (22) being the bearing (46) of the die (10). A pocket (40) having tapered sidewalls (70) is formed in the upstream face (32) of the die (10) and surrounds the extrusion profile (22). The configuration of the pocket (40) improves the material flow through the die (10). The configuration of the pocket (40) depends on the configuration of the extrusion profile (22). The width of the pocket (40) is small at the fast areas of the extrusion profile (22) while being large at the slow areas of the extrusion profile (22). The pocket (40) alters the entry angle of material as it enters the die (10) thus reducing friction in the die (10) and allowing increased extrusion speeds. In conjunction with the pocket (40), the die (10) has a continuous bearing (46) having a length depending on the configuration of the extrusion profile (22).

    Abstract translation: 挤压模具(10)包括具有上游面(32)和下游面(34)的模具本体(30),其具有从上游面(32)穿过主体(30)的挤压型材(22)到 下游面(34)。 挤压型材(22)的壁是模具(10)的轴承(46)。 在模具(10)的上游面(32)中形成具有锥形侧壁(70)的袋(40),并且包围挤压型材(22)。 袋(40)的构造改善了通过管芯(10)的材料流动。 袋(40)的构型取决于挤压型材(22)的构型。 在挤压型材(22)的快速区域处,袋(40)的宽度较小,同时在挤出型材(22)的缓慢区域处较大。 口袋(40)在其进入模具(10)时改变材料的入射角度,从而减小模具(10)中的摩擦并允许增加的挤出速度。 与凹穴(40)一起,模具(10)具有连续的轴承(46),其长度取决于挤出型材(22)的构型。

    Actively Q-switched laser system using quasi-phase-matched electro-optic Q-switch
    6.
    发明授权
    Actively Q-switched laser system using quasi-phase-matched electro-optic Q-switch 有权
    使用准相位匹配电光Q开关的积极Q开关激光系统

    公开(公告)号:US07433373B2

    公开(公告)日:2008-10-07

    申请号:US10866777

    申请日:2004-06-15

    CPC classification number: H01S3/115 H01S3/107 H01S3/1083 H01S3/109

    Abstract: A Q-switched laser system is disclosed. The laser system employs a quasi-phase-matched electro-optic (QPM EO) crystal as the laser Q-switch. When applied with a certain modulating electric field, the QPM EO crystal can function as a polarization rotator to rotate the polarization direction of the resonant laser beam in a polarization-dependent laser resonator, thereby switching the laser resonator between high-loss and low-loss cavity states to achieve laser Q-switching. Compared with traditional electro-optic Q-switched laser system, the disclosed laser system is characterized by a low switching-voltage, reduced cost, and compactness. A quasi-phase-matched electro-optically Q-switched wavelength-conversion and wavelength-tunable laser system is also disclosed. The disclosed laser system integrates a QPM electro-optic Q-switch and a QPM nonlinear wavelength converter in a single crystal substrate to perform a high-efficiency intracavity wavelength conversion. The disclosed laser system is therefore simple and compact and has lower system requirements on wall-plug power and higher overall conversion efficiency.

    Abstract translation: 公开了一种Q开关激光系统。 激光系统采用准相位匹配电光(QPM EO)晶体作为激光Q开关。 当施加一定的调制电场时,QPM EO晶体可以用作偏振旋转器,以使偏振相关激光谐振器中的谐振激光束的偏振方向旋转,从而将激光谐振器切换到高损耗和低损耗 腔状态来实现激光Q开关。 与传统的电光Q开关激光系统相比,所公开的激光系统的特点是开关电压低,成本低,紧凑。 还公开了准相位匹配电光Q开关波长转换和波长可调激光系统。 所公开的激光系统将QPM电光Q开关和QPM非线性波长转换器集成在单晶衬底中以执行高效率腔内波长转换。 所公开的激光系统因此简单紧凑,并且对壁挂式电源具有较低的系统要求,并具有较高的整体转换效率。

    Flashlight
    7.
    发明申请
    Flashlight 失效
    手电筒

    公开(公告)号:US20070014103A1

    公开(公告)日:2007-01-18

    申请号:US11182758

    申请日:2005-07-18

    Abstract: A flashlight includes a main member having top, a bottom, a front and a rear. The main member has a base a head and battery pack, wherein the head is pivoted on the base via a pivot to be flexed to the front. A first light source and a second light source are mounted on the head, wherein the second light source projects light that is substantially to that of the first light source. A hook is provided in a tunnel in the base to be drawn out or pushed into. The first and second light sources and the flexion of the head provide a greater illumination range and a function of adjusting the illuminating direction when it is hung.

    Abstract translation: 手电筒包括具有顶部,底部,前部和后部的主要部件。 主构件具有头部和电池组的基座,其中头部经由枢轴在基部上枢转以弯曲到前部。 第一光源和第二光源安装在头上,其中第二光源投射基本上与第一光源的光。 在基座中的一个隧道中设置一个钩子,以将其拉出或推入。 第一和第二光源和头部的弯曲提供更大的照明范围和当悬挂时调节照明方向的功能。

    BROADBAND PUMP LASER STABILIZED CASCADING WAVELENGTH CONVERSION FOR GENERATING RED, GREEN AND BLUE LASER RADIATIONS
    8.
    发明申请
    BROADBAND PUMP LASER STABILIZED CASCADING WAVELENGTH CONVERSION FOR GENERATING RED, GREEN AND BLUE LASER RADIATIONS 审中-公开
    宽带激光激光器稳定化的波长转换,用于产生红色,绿色和蓝色激光辐射

    公开(公告)号:US20120195333A1

    公开(公告)日:2012-08-02

    申请号:US13018850

    申请日:2011-02-01

    CPC classification number: H01S3/0092 G02F1/3532 H01S3/067 H01S3/1618

    Abstract: A laser-wavelength conversion system with a broad temperature acceptance bandwidth is provided. The laser system includes a broad-band pump laser driving one or several cascaded laser wavelength converters, wherein the pump laser spectrum is broader than the spectral acceptance bandwidth of at least one of the laser wavelength converters. The broad pump laser spectrum allows some temperature variation in the laser wavelength converters, resulting in a broad temperature acceptance for the whole laser system. The laser system provides stable multi-color laser radiation for applications such as the red-green-blue laser projection TV.

    Abstract translation: 提供了具有宽的温度接受带宽的激光波长转换系统。 激光系统包括驱动一个或多个级联激光波长转换器的宽带泵浦激光器,其中泵浦激光器光谱比至少一个激光波长转换器的光谱接收带宽更宽。 广泛的泵浦激光光谱允许激光波长转换器中的一些温度变化,导致整个激光系统的宽温度接受。 激光系统为红绿蓝激光投影电视等应用提供稳定的多色激光辐射。

    ELECTRO-OPTIC BRAGG DEFLECTOR AND METHOD OF USING IT AS LASER Q-SWITCH IN AN ACTIVELY Q-SWITCHED LASER AND AN ACTIVELY Q-SWITCHED WAVELENGTH-CONVERSION LASER
    9.
    发明申请
    ELECTRO-OPTIC BRAGG DEFLECTOR AND METHOD OF USING IT AS LASER Q-SWITCH IN AN ACTIVELY Q-SWITCHED LASER AND AN ACTIVELY Q-SWITCHED WAVELENGTH-CONVERSION LASER 有权
    电光学变焦器及其在激光Q开关激光器和激活Q开关波长转换激光器中的激光Q开关的使用方法

    公开(公告)号:US20110075688A1

    公开(公告)日:2011-03-31

    申请号:US12964014

    申请日:2010-12-09

    Abstract: The configurations of an electro-optic Bragg deflector and the methods of using it as a laser Q-switch in a Q-switched laser and in a Q-switched wavelength-conversion laser are provided. As a first embodiment, the electro-optic Bragg deflector comprises an electrode-coated electro-optic material with one of a 1D and a 2D spatially modulated electro-optic coefficient. When a voltage is supplied to the electrodes, the electro-optic material behaves like a Bragg grating due to the electro-optically induced spatial modulation of the refractive index. The second embodiment relates to an actively Q-switched laser, wherein the electro-optic Bragg deflector functions as a laser Q-switch. The third embodiment of the present invention combines the Q-switched laser and a laser-wavelength converter to form a Q-switched wavelength-conversion laser, wherein the EO Bragg deflector can be monolithically integrated with a quasi-phase-matching wavelength converter in a fabrication process.

    Abstract translation: 提供了电光布拉格偏转器的结构以及将其用作Q开关激光器和Q开关波长转换激光器中的激光Q开关的方法。 作为第一实施例,电光布拉格偏转器包括具有1D和2D空间调制的电光系数之一的电极涂覆的电光材料。 当向电极提供电压时,由于电光诱导的折射率的空间调制,电光材料的行为类似于布拉格光栅。 第二实施例涉及一种主动Q开关激光器,其中电光布拉格偏转器用作激光Q开关。 本发明的第三实施例将Q开关激光器和激光波长转换器组合以形成Q开关波长转换激光器,其中EO布拉格偏转器可以与准相位匹配波长转换器单片集成在 制造工艺。

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