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公开(公告)号：US5874015A
公开(公告)日：1999-02-23
申请号：US659792
申请日：1996-06-06
CPC分类号： C22C47/064 , B22F3/1291 , B22F3/15 , C22C47/20 , C22F1/18 , F02K9/97 , B22F2998/00 , F05D2230/20 , F05D2300/143 , Y10T29/49346 , Y10T428/12583
摘要： A method for making an article from rhenium and in particular a rocket nozzle. First a molybdenum mandrel is formed with a portion having the desired shape of the nozzle. A layer of rhenium is deposited over the nozzle portion, and then rhenium wire is wrapped around this rhenium layer. A second rhenium layer or a layer of ruthenium is then deposited over the layer of rhenium wire. Alternating layers of rhenium wire and deposited rhenium or ruthenium are applied until a desired thickness is obtained. A layer of molybdenum is applied to can the assembly and the assembly is subject to hot isostatic pressing. Finally, the molybdenum is etched away leaving the rhenium nozzle.
摘要翻译： 制造铼制品，特别是火箭喷嘴的方法。 首先，钼心轴形成有具有所需形状的喷嘴的部分。 在喷嘴部分上沉积一层铼，然后将铼丝缠绕在该铼层周围。 然后在铼丝层上沉积第二铼层或钌层。 施加铼丝和沉积的铼或钌的交替层，直到获得所需的厚度。 施加一层钼可以使组件和组件经受热等静压。 最后，钼被蚀刻离开铼喷嘴。
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公开(公告)号：US5704538A
公开(公告)日：1998-01-06
申请号：US655036
申请日：1996-05-29
CPC分类号： B23K35/3013 , B23K35/005 , B23K35/007 , Y10T428/12771 , Y10T428/12819 , Y10T428/12875 , Y10T428/12889
摘要： A method for joining rhenium to columbium and columbium based alloys that minimizes the formation of brittle intermetallics. First, a layer of ruthenium is applied to both the rhenium and columbium and then heated until the ruthenium diffuses with the rhenium and columbium respectively. A braze foil is place between the two outer ruthenium layers and the assembly is heated in a range of 50.degree. C. to 100.degree. C. above the liquidus of the braze, thereby joining the rhenium to the columbium. Alternatively, the ruthenium coated surfaces are placed in contact and diffused together under a compressive load of at least 1000 psi.
摘要翻译： 将铼与铌和铌基合金接合的方法，其使脆性金属间化合物的形成最小化。 首先，将一层钌施加到铼和铌上，然后加热直到钌分别与铼和铌分布。 在两个外部钌层之间放置钎焊箔，并将组件在钎焊液面上方50℃至100℃的范围内加热，从而将铼接合到铌。 或者，将钌涂覆的表面置于接触并在至少1000psi的压缩载荷下扩散在一起。
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公开(公告)号：US5824425A
公开(公告)日：1998-10-20
申请号：US872796
申请日：1997-06-10
CPC分类号： B23K35/3013 , B23K35/005 , B23K35/007 , Y10T428/12771 , Y10T428/12819 , Y10T428/12875 , Y10T428/12889
摘要： A method for joining rhenium to columbium and columbium based alloys that minimizes the formation of brittle intermetallics. First, a layer of ruthenium is applied to both the rhenium and columbium and then heated until the ruthenium diffuses with the rhenium and columbium respectively. A braze foil is place between the two outer ruthenium layers and the assembly is heated in a range of 50.degree. C. to 100.degree. C. above the liquidus of the braze, thereby joining the rhenium to the columbium. Alternatively, the ruthenium coated surfaces are placed in contact and diffused together under a compressive load of at least 1000 psi.
摘要翻译： 将铼与铌和铌基合金接合的方法，其使脆性金属间化合物的形成最小化。 首先，将一层钌施加到铼和铌上，然后加热直到钌分别与铼和铌分布。 在两个外部钌层之间放置钎焊箔，并将组件在钎焊液面上方50℃至100℃的范围内加热，从而将铼接合到铌。 或者，将钌涂覆的表面置于接触并在至少1000psi的压缩载荷下扩散在一起。
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