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    • 2. 发明授权
    • Vertical furnace for the growth of single crystals
    • 立式炉用于生长单晶
    • US5698029A
    • 1997-12-16
    • US659013
    • 1996-06-04
    • Takao FujikawaKatsuhiro UeharaYoshihiko SakashitaHiroshi OkadaTakao Kawanaka
    • Takao FujikawaKatsuhiro UeharaYoshihiko SakashitaHiroshi OkadaTakao Kawanaka
    • C30B11/00C30B35/00
    • C30B11/003C30B11/002C30B29/40Y10T117/10Y10T117/1016
    • A high-pressure container 1 as a furnace casing is equipped with insulating cylinder 2 of an inverted glass shape, and heater elements 18 individually mounted on heater mounting plates 16 arranged in parallel to section vertically the space for arranging the heater elements 18 at a given interval in the insulating cylinder 2. For the procedures of single crystal growth by heating in a high-pressure gas atmosphere, the insulating cylinder 2 and the heater mounting plates 16 can suppress the effects of spontaneous convection of a high-pressure gas and the effects of the radiation heat from an adjacent heater element, as less as possible, so that the temperature controllability of each heating zone can be improved whereby the vertical temperature distribution in the furnace can be controlled appropriately. Also, a heater element 18 of a larger aperture size can be maintained at a stably supported state, whereby a single crystal of a larger dimension can be grown.
    • 作为炉壳的高压容器1配备有倒置玻璃形状的绝缘筒体2和加热器元件18,其单独地安装在加热器安装板16上,该加热器安装板16垂直地布置在用于将加热器元件18布置在给定的空间 绝缘筒2的间隔。对于通过在高压气体气氛中加热而实现单晶生长的步骤,绝缘筒2和加热器安装板16可以抑制高压气体的自发对流的效果和效果 的相邻加热器元件的辐射热量越少越好,从而可以提高每个加热区域的温度可控性,从而可以适当地控制炉内的垂直温度分布。 此外,可以将较大孔径的加热器元件18保持在稳定的支撑状态,从而可以生长更大尺寸的单晶。
    • 3. 发明授权
    • Method for detecting brazing defects in plate-fin type heat exchangers
    • 检测板翅式热交换器钎焊缺陷的方法
    • US4412453A
    • 1983-11-01
    • US311599
    • 1981-10-15
    • Nobuyuki NagaiEiji TakahashiYoji MatsumotoHideaki Ohtsu
    • Nobuyuki NagaiEiji TakahashiYoji MatsumotoHideaki Ohtsu
    • F28F11/00G01N29/04G01N29/265
    • G01N29/265G01N2291/048G01N2291/102G01N2291/2632
    • A method for detecting brazing defects in a plate-fin type heat exchanger with a brazed core structure having a number of wavy fin members alternately with a number of parallelly spaced plate members, in which a pulsed sound in the frequency range of several tens KHz to several hundreds KHz is transmitted across the fin and plate members from a pulser located on one outermost plate member to a sensor located on the other outermost plate member, detecting the positions and sizes of brazing defects two-dimensionally on a plane on the basis of the level of sound received by the sensor. Three-dimensional detection of the position of the defect is also possible by combining therewith a radiographic inspection using a radiant ray source which is located on one lateral side of the core structure to irradiate a radiant ray in a direction substantially parallel with the plate members of the core structure.
    • 一种具有钎焊芯结构的板状翅片式热交换器中的钎焊缺陷的方法,所述钎焊芯结构具有多个平行间隔的板构件,所述钎焊芯结构具有多个平行间隔的板构件,所述钎焊芯结构具有多个波形翅片构件,其中脉冲声音在几十KHz至 在位于一个最外板构件上的位于一个最外板构件上的脉冲发生器上将数百KHz从翅片和板构件传递到位于另一最外板构件上的传感器,在二维基础上在平面上二维地检测钎焊缺陷的位置和尺寸 传感器接收的声音水平。 缺陷位置的三维检测也可以通过与使用位于核心结构的一个侧面上的辐射线源的射线照相检查相结合来辐射辐射线,该辐射光线基本上平行于板状构件的方向 的核心结构。