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    • 2. 发明申请
    • STRUCTURAL MEMBER AND PROCESS FOR PRODUCING THE SAME
    • 结构构件及其制造方法
    • WO1994005824A1
    • 1994-03-17
    • PCT/JP1993001137
    • 1993-08-12
    • ZAMA, Kazuko +hmMITSUBISHI JUKOGYO KABUSHIKI KAISHAFUJITA, AkitsuguKAWANO, TakayukiNAKAMURA, MakotoSAIKA, FumikazuMATSUMOTO, TatsukiOBA, ShinsukeSUEOKA, HidetoshiKIMURA, Manabu
    • ZAMA, Kazuko +hmMITSUBISHI JUKOGYO KABUSHIKI KAISHAZAMA, Masato +di
    • C22C38/48
    • C21D6/004C21D1/78C21D9/0025C21D9/50C21D2211/001C21D2211/008C22C38/48
    • A structural member which is composed of, on the weight basis, at most 0.07 % of carbon, at most 1 % of silicon, at most 1 % of manganese, 2.5-5 % of copper, 3-3.5 % of nickel, 14-17.5 % of chromium, at most 0.5 % of molybdenum, 0.15-0.45 % of niobium, and the balance substantially consisting of iron, and wherein an (epsilon) phase is deposited in a matrix composed of 6-30 % by volume of an austenitic phase and the rest substantially consisting of a martensitic phase. A process for producing a structural member by subjecting a stainless steel having the above composition to the first solution heat treatment at 1010 to 1050 C and then to aging at 520 to 630 C, wherein the second solution heat treatment is conducted at 730 to 840 C before aging is conducted at 520 to 630 C, or welding is conducted to give an arbitrary shape to a structural member before the second solution heat treatment is conducted. Another process for producing a structural member comprises subjecting a stainless steel having the above composition to the first solution heat treatment at 1010 to 1050 C and then to aging at 520 to 630 C, conducting welding to give an arbitrary shape to a structural member, raising the temperature at a rate of 100 C/h or below, conducting the second solution heat treatment at 1010 to 1050 C, lowering the furnace temperature to room temperature at a cooling rate of 100 C/h or below, conducting aging at 520 to 630 C, and lowering the furnace temperature to room temperature at a cooling rate of 100 C/h or below.
    • 一种结构构件,其以重量计最多为0.07%的碳,至多1%的硅,至多1%的锰,2.5-5%的铜,3-3.5%的镍,14- 17.5%的铬,至多0.5%的钼,0.15-0.45%的铌,余量基本上由铁组成,并且其中(ε)相沉积在由6-30体积%的奥氏体组成的基体中 相,其余基本上由马氏体相组成。 一种制造结构件的方法,该方法是使具有上述组成的不锈钢在1010-1050℃下进行第一次固溶热处理,然后在520〜630℃下老化,其中第二固溶热处理在730〜840℃ 在520〜630℃下进行老化之前,进行第​​二固溶热处理之前对结构件进行任意形状的焊接。 用于生产结构件的另一种方法包括将具有上述组成的不锈钢经过第一次固溶热处理,在1010至1050℃下,然后在520至630℃老化,进行焊接以给结构件提供任意形状,升高 温度为100℃/ h以下,在1010〜1050℃进行第二固溶热处理,以100℃/ h以下的冷却速度将炉温降至室温,在520〜630℃下进行老化 并以100℃/ h以下的冷却速度将炉温降至室温。
    • 3. 发明授权
    • Bolt attaching and detaching device
    • 螺栓连接和拆卸装置
    • US6105471A
    • 2000-08-22
    • US227194
    • 1999-01-08
    • Kawano TakayukiShimamoto Takijiro
    • Kawano TakayukiShimamoto Takijiro
    • B25B23/14B23P19/06B25B29/02F01D25/24F16B31/04B25B17/00
    • B23P19/068B25B29/02F01D25/243
    • Provided is bolt attaching and detaching device for fastening and loosening bolt by heating the bolt by bolt heater inserted into central hole of the bolt by which fastening and loosening of the bolt can be done automatically without need of operator to watch or attend always. Bolt heater (9) is inserted into bolt hole (3) of bolt (4) for fastening flanges (1, 2) together. Upper nut (5) in thread engagement with the bolt (4) is given rotational force by nut rotating device (11) via drive belt (13). Measured value of elongation indicator (10) for measuring thermal elongation of the bolt (4) and rotating angle detecting signal of the nut rotating device (11) as well as predetermined elongation amount of the bolt (4) and predetermined rotating angle of the upper nut (5) from condition setting unit (18 are given to control unit (17). The control unit (17) controls bolt heater power source (16) as well as controls the nut rotating device (11) so that the upper nut (5) rotates in the predetermined angle.
    • 本发明提供一种用于通过插入螺栓中心孔的螺栓加热螺栓来加固螺栓的螺栓安装和拆卸装置,可以自动完成螺栓的紧固和松动,而不需要操作员始终观察或出席。 螺栓加热器(9)插入螺栓(4)的螺栓孔(3)中,用于将法兰(1,2)紧固在一起。 通过螺母旋转装置(11)经由传动带(13)给予与螺栓(4)螺纹接合的上螺母(5)的旋转力。 用于测量螺栓(4)的热伸长的伸长率指示器(10)和螺母旋转装置(11)的旋转角度检测信号以及螺栓(4)的预定伸长量和上部预定旋转角度的测量值 螺栓(5)从条件设定单元(18)送到控制单元(17),控制单元(17)控制螺栓加热器电源(16),并控制螺母旋转装置(11),使上螺母 5)以预定角度旋转。