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    • 4. 发明授权
    • Optimal composite curing system and method
    • 最佳复合固化体系及方法
    • US5345397A
    • 1994-09-06
    • US796933
    • 1991-11-25
    • Paul I. HandelMatthew J. PattersonDaniel GuerinNicholas C. StraussSteven B. HeltonThomas M. BarrettLisa K. KoelewynJames D. Waterman
    • Paul I. HandelMatthew J. PattersonDaniel GuerinNicholas C. StraussSteven B. HeltonThomas M. BarrettLisa K. KoelewynJames D. Waterman
    • B29C35/02
    • B29C35/0288B29C2037/903B29K2105/06
    • An intelligent control system for directing a process for curing parts made of fiber-reinforced composite material in an autoclave. The system uses data gathered during the curing processing to calculate repetitively the temperature of the autoclave required to establish and maintain a predetermined cure temperature. The system accounts for heat generated by the exothermal reaction of the resin during polymerization. The control recalculates an optimal autoclave temperature at periodic intervals during the cure cycle on the basis of temperature data from the part being cured and temperature within the autoclave. The optimal autoclave temperature is determined from calculated values representing resin heat, maximum offset, lag time and degree of cure of the resin. Control signals produced by a computer that executes control algorithms stored in electronic memory accessible to the processor cause corresponding changes in the temperature of the autoclave needed to cure the part without overheating and in less time than with a conventional autoclave temperature control.
    • 一种智能控制系统,用于引导在高压釜中固化由纤维增强复合材料制成的部件的工艺。 该系统使用在固化处理期间收集的数据来重复地计算建立并保持预定固化温度所需的高压釜的温度。 该系统考虑到聚合期间树脂的放热反应产生的热量。 基于来自固化部分的温度数据和高压釜内的温度,该控制在固化循环期间以周期性间隔重新计算最佳高压釜温度。 最佳的高压釜温度由表示树脂热量,最大偏移,滞后时间和树脂固化程度的计算值确定。 由执行存储在处理器可访问的电子存储器中的控制算法的计算机产生的控制信号导致固化部件所需的高压釜温度的相应变化而不会过热,并且在比常规的高压釜温度控制下更短的时间内。
    • 9. 发明授权
    • Power laser with uncoated diamond window
    • 功率激光器与未涂层的钻石窗口
    • US5335245A
    • 1994-08-02
    • US18722
    • 1993-02-17
    • Bruno MarieDaniel GuerinChristian Larquet
    • Bruno MarieDaniel GuerinChristian Larquet
    • H01S3/03B23K26/00H01S3/034H01S3/06H01S3/08H01S3/223
    • H01S3/034
    • A power laser has a cavity (2) delimited at its opposite ends by a first partially transmitting window (3) and a second reflecting window ( 4). The first window (3) is constituted by at least one diamond wafer (5) with uncoated flat parallel surfaces, having a controlled thickness whose variations do not exceed 0.2 micron. The diamond wafer (5; 6) is mounted in an annular support (9; 10) of material which is a good heat conductor and is provided with a cooler (11; 12). The window (3) can comprise two parallel wafers (5.sub.A, 5.sub.B) of diamond separated by a calibrated distance (14) which is an uneven multiple of .lambda./4n, .lambda. being the laser wavelength and n the index of refraction of the medium between the wafers. Or the second window (4) can also be constituted by a diamond wafer (6) with a reflective metallic coating (60). A sweeping gas can be blown over the internal surface of at least one of the windows.
    • 功率激光器具有在其相对端处由第一部分透射窗(3)和第二反射窗(4)限定的空腔(2)。 第一窗口(3)由具有未涂覆的平坦平行表面的至少一个金刚石晶片(5)构成,具有可变厚度,其变化不超过0.2微米。 金刚石晶片(5; 6)安装在材料的环形支撑件(9; 10)中,该材料是良好的导热体并具有冷却器(11; 12)。 窗口(3)可以包括由校准距离(14)隔开的两个平行晶片(5A,5B),其是λ/ 4n的不均匀倍数,λ是激光波长,n是介质的折射率 晶圆。 或者第二窗口(4)也可以由具有反射金属涂层(60)的金刚石晶片(6)构成。 可以在至少一个窗户的内表面上吹扫清扫气体。