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    • 5. 发明授权
    • Liquid interface diffusion method of bonding titanium and titanium alloy honeycomb sandwich panel structure
    • 连接钛和钛合金蜂窝状三面板结构的液体界面扩散方法
    • US3769101A
    • 1973-10-30
    • US3769101D
    • 1971-06-28
    • ROHR INDUSTRIES INC
    • WOODWARD J
    • B23K1/00B23K5/12B23K28/00B23K35/00B23K35/30C22F1/18
    • B23K1/0014B23K5/12B23K28/003B23K35/005B23K35/3033B23K2201/02C22F1/183
    • A liquid interface diffusion process, for bonding titanium or titanium alloys wherein at least one of the titanium type materials to be fayed is sequentially plated with a total weight of from between 1 and 3 gms/ft2 of at least three selected metals or an alloy made therefrom. The faying surfaces are then held together to maintain position on alignment, placed in a protective atmosphere, the temperature of the materials are then raised at a controlled rate causing sufficient solid state diffusion to occur and a liquid to form continuing to increase the temperature to a pre-determined level and holding at this temperature until a solidification occurs and sufficient additional solid state diffusion occurs producing a desirable dilution of bridge material and titanium at the joint, and then reducing the temperature at a controlled rate to a lower temperature to complete the bonding cycle. An additional step of heat curing under protective atmosphere is required after the bonding of beta type titanium alloys, for providing additional precipitation sites and precipitation of the alpha phase for strengthening of the basis materials.
    • 用于粘合钛或钛合金的液体界面扩散方法,其中至少一种待磨制的钛型材料依次镀在总重量为1至3gms / ft 2的至少三种选定金属或合金制成 由此。 然后将接合表面保持在一起以保持对准位置,放置在保护气氛中,然后以受控的速率升高材料的温度,引起足够的固态扩散发生,并且形成液体继续将温度升高至 预定水平并保持在该温度直到发生固化并发生足够的额外的固态扩散,产生桥接材料和钛在接头处的理想稀释,然后以受控的速率将温度降低到较低的温度以完成粘合 周期。 在β型钛合金的结合之后,需要在保护性气氛下进行热固化的附加步骤,用于提供额外的沉淀位点和α相的沉淀用于强化基础材料。
    • 9. 发明授权
    • Brazing method and apparatus
    • BRAZING方法和装置
    • US3612387A
    • 1971-10-12
    • US3612387D
    • 1970-01-07
    • AERONCA INC
    • RATHBUN ROBERT R
    • B23K1/00B23K5/00
    • B23K1/0014B23K2201/02
    • A method and apparatus are disclosed for brazing articles such as honeycomb sandwich structures. The apparatus includes a cold wall boxlike housing separable into upper and lower sections. Each section carries a ceramic die member provided with passageways terminating in small ports for conducting a cooling fluid adjacent to the work. The workpiece is heated by electrical resistance heater strips passing above and below the workpiece. Means are provided for evacuating the housing and backfilling it with argon. When the workpiece is brought to brazing temperature, two expandable bags are inflated. One bag raises the lower die section to form a general fit with the upper one. The second bag is in direct contact with the upper face of the workpiece and exerts a uniform pressure normal to its surface. After brazing, the bags are deflated and chilled argon is introduced through the die passages to cool the work. Other features include localized temperature control by electron emission or cooling tubes and vapor removal by means of a cold trap.